U.S. patent application number 12/167190 was filed with the patent office on 2009-02-05 for fluid delivery systems for climate controlled seats.
Invention is credited to David Marquette, John Terech.
Application Number | 20090033130 12/167190 |
Document ID | / |
Family ID | 40337416 |
Filed Date | 2009-02-05 |
United States Patent
Application |
20090033130 |
Kind Code |
A1 |
Marquette; David ; et
al. |
February 5, 2009 |
FLUID DELIVERY SYSTEMS FOR CLIMATE CONTROLLED SEATS
Abstract
A seat portion or a backrest portion of seating assembly
comprises a recessed area or wide groove along its exterior
surface. The recessed area can be configured to receive a spacer
(e.g., spacer fabric, member, module, etc.) that helps maintains
the spatial and structural integrity of the recessed area. The
spacer can be generally air and fluid permeable. In addition, a
scrim layer can be positioned over the spacer fabric to help direct
and/or distribute air or other fluid to an exterior surface of the
seating assembly. The recessed area can also be configured to
receive one or more films, occupant sensory devices, comfort
layers, scrims, temperature sensors, heating devices and/or the
like. Thus, air or other fluid can be delivered into the recessed
area of a seat or backrest portion of a seating assembly, and
subsequently delivered through the spacer fabric and scrim layer
towards or away from an occupant. In some embodiments, the air or
fluid is conditioned (e.g., heated or cooled) prior to entering the
recessed area.
Inventors: |
Marquette; David;
(Farmington Hills, MI) ; Terech; John; (Milan,
MI) |
Correspondence
Address: |
KNOBBE MARTENS OLSON & BEAR LLP
2040 MAIN STREET, FOURTEENTH FLOOR
IRVINE
CA
92614
US
|
Family ID: |
40337416 |
Appl. No.: |
12/167190 |
Filed: |
July 2, 2008 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
60947605 |
Jul 2, 2007 |
|
|
|
Current U.S.
Class: |
297/180.15 |
Current CPC
Class: |
B60N 2/5657 20130101;
A47C 7/74 20130101; A47C 21/048 20130101; B60N 2/5621 20130101;
A47C 7/748 20130101; B60N 2/5685 20130101 |
Class at
Publication: |
297/180.15 |
International
Class: |
A47C 31/00 20060101
A47C031/00 |
Claims
1. A climate control assembly for a seat, comprising: a cushion
having an outer surface comprising a first side for supporting an
occupant and a second side, the first side and the second side
facing generally in opposite directions; at least one fluid passage
extending from the first side to the second side of the cushion; a
recessed area along the first side of the cushion, the recessed
area being in fluid communication with the fluid passage; and a
spacer positioned within the recessed area, the spacer being at
least partially fluid permeable and being configured to
substantially retain the spatial integrity of the recessed area;
wherein the recessed area occupies at least about half of a surface
area of the first side of the cushion.
2. The climate control assembly of claim 1, wherein the recessed
area is configured to further receive a scrim, the scrim comprising
at least one opening through which fluids may pass.
3. The climate control assembly of claim 2, wherein the scrim
comprises a plurality of openings.
4. The climate control assembly of claim 2, wherein the scrim
comprises a single opening, the single opening having an area
generally greater than one-half of the total area of the scrim.
5. The climate control assembly of claim 2, wherein the scrim
comprises a padding layer configured to generally enhance the
comfort to a seated occupant.
6. The climate control assembly of claim 1, wherein the recessed
area includes a bottom surface and at least one side surface, the
recessed area comprising at least one film layer to cover at least
of the bottom surface and the side surfaces, the film layer having
an air permeability that is lower than an air permeability of the
spacer.
7. The climate control assembly of claim 6, wherein the film layer
is attached to the spacer.
8. The climate control assembly of claim 1, wherein the recessed
area comprises a generally rectangular shape.
9. The climate control assembly of claim 1, wherein the fluid
passage is configured to be in fluid communication with a fluid
module.
10. The climate control assembly of claim 9, wherein the fluid
module comprises a fluid transfer device.
11. The climate control assembly of claim 10, wherein the fluid
module further comprises a thermoelectric device configured to
selectively heat or cool a fluid.
12. The climate control assembly of claim 1, further comprising an
occupant sensing device configured to detect when an occupant is
seated within the seat.
13. The climate control assembly of claim 1, further comprising a
heating element.
14. The climate control assembly of claim 13, wherein the heating
element is positioned between the bottom surface of the recessed
area and an exterior surface of the seat.
15. The climate control assembly of claim 13, wherein the heating
element is generally integrated with the spacer.
16. The climate control assembly of claim 13, wherein the heating
element comprises a plurality of slots or other openings, the slots
or other openings being configured to permit a fluid to pass
therethrough.
17. The climate control assembly of claim 1, wherein the climate
control assembly is configured to be positioned within an
automobile seat.
18. The climate control assembly of claim 1, wherein the climate
control assembly is configured to be positioned within a bed.
19. The climate control assembly of claim 1, wherein the first side
of the cushion comprises at least one pocket, the pocket being in
fluid communication with the recessed area and being configured to
deliver a volume of fluid to a targeted region of the cushion.
20. The climate control assembly of claim 19, wherein the at least
one pocket is coextensive with the recessed area.
21. The climate control assembly of claim 20, wherein the spacer
comprises a unitary member that is shaped and sized to fit within
both the recessed area and the at least one pocket.
22. The climate control assembly of claim 19, wherein the at least
one pocket is separate from the recessed area.
23. The climate control assembly of claim 22, wherein the at least
one pocket and the recessed area are in fluid communication using a
channel formed on the first side of the cushion.
24. The climate control assembly of claim 22, wherein the at least
one pocket and the recessed area are in fluid communication using a
channel formed on the second side of the cushion.
25. The climate control assembly of claim 22, wherein the at least
one pocket and the recessed area are in fluid communication using a
conduit positioned within the cushion, generally between the first
and second sides of the cushion.
26. The climate control assembly of claim 9, wherein the fluid
module is configured to deliver fluid through the fluid passage in
a direction generally from the first side to the second side of the
cushion.
27. The climate control assembly of claim 9, wherein the fluid
module is configured to deliver fluid through the fluid passage in
a direction generally from the second side to the first side of the
cushion.
28. The climate control assembly of claim 26, further comprising a
second fluid module and a second fluid passage, wherein the second
fluid module is further configured to deliver fluid through the
second fluid passage in a direction generally from the second side
to the first side of the cushion.
29. The climate control assembly of claim 1, wherein the spacer
comprises a spacer fabric.
30. The climate control assembly of claim 1, wherein the fluid
passage is configured to be selectively placed in fluid
communication with a vehicle's HVAC system.
31. A climate controlled seat assembly comprising: a cushion having
an outer surface comprising a first side for supporting an occupant
and a second side, the first side and the second side facing
generally in opposite directions; at least one fluid passage
extending from the first side to the second side of the cushion; a
recessed area along the first side of the cushion, the recessed
area being in fluid communication with the fluid passage; and a
spacer positioned within the recessed area, the spacer being at
least partially fluid permeable and being configured to
substantially retain the spatial integrity of the recessed area;
wherein the recessed area comprises a depth between 5 and 15
mm.
32. A climate controlled seat comprising: a cushion having an outer
surface comprising a first side for supporting an occupant and a
second side, the first side and the second side facing generally in
opposite directions; at least one fluid passage extending from the
first side to the second side of the cushion; a recessed area along
the first side of the cushion, the recessed area being in fluid
communication with the fluid passage; and a spacer positioned
within the recessed area, the spacer being at least partially fluid
permeable and being configured to substantially retain the spatial
integrity of the recessed area; wherein the recessed area comprises
a depth and a width, the ratio of the width to depth being between
8 and 40.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the priority benefit under 35 U.S.C.
.sctn. 119(e) of U.S. Provisional Application Ser. No. 60/947,605,
filed Jul. 2, 2007, the entirety of which is hereby incorporated by
reference herein.
BACKGROUND
[0002] 1. Field of the Inventions
[0003] This application relates generally to climate control, and
more specifically, to climate control of a seat assembly.
[0004] 2. Description of the Related Art
[0005] Temperature modified air for environmental control of living
or working space is typically provided to relatively extensive
areas, such as entire buildings, selected offices, suites of
offices or other rooms and/or the like. In the case of vehicles,
such as automobiles, the entire vehicle is typically cooled or
heated as a unit. There are many situations, however, in which more
selective or restrictive air temperature modification is desirable.
For example, it is often desirable to provide an individualized
climate control for a seat so that substantially instantaneous
heating or cooling can be achieved. For example, a vehicle exposed
to the summer weather (e.g., where the vehicle has been parked in
an unshaded area for a long period of time) can cause one or more
of the vehicle seats to become hot and generally uncomfortable for
the occupant for some time after first entering and beginning to
use the vehicle. This may be the case even if the vehicle's air
conditioning system (e.g., automotive HVAC) is being operated.
Furthermore, even with normal air-conditioning, the seat occupant's
back and other pressure points may remain uncomfortably hot and/or
sweaty. Under cold conditions, it may be desirable to relatively
quickly warm a seat portion, especially where the vehicle's heating
system is unlikely to warm the vehicle's interior as quickly.
[0006] For such reasons, there have been provided various types of
individualized climate control systems for vehicle seats (see e.g.,
U.S. Pat. Nos. 7,114,771 and 6,869,139). Such climate control
systems typically include a distribution system comprising a
combination of channels and passages formed in the cushion of the
seat. Climate conditioned air is supplied to these channels and
passages by a climate control device. The climate conditioned air
flows through the channels and passages to cool or heat the space
adjacent the surface of the vehicle seat.
[0007] There are, however, problems that have been experienced with
existing climate control systems for seat assemblies. For example,
the distribution system can be difficult to install and/or require
a large number of components that results in increased steps during
assembly. In addition, many of the existing control systems for
seat assemblies include relatively thick profiles that tend to
interfere with the manufacture of the assembly and/or decrease an
occupant's comfort level. With the increased popularity of climate
controlled vehicle seats, car manufacturers are increasingly
looking for climate control systems that can be installed more
easily and for systems that can provide the comparable performance
at a lower cost.
SUMMARY
[0008] According to some embodiments of the present application, a
climate control assembly for a seat includes a cushion having an
outer surface comprising a first side for supporting an occupant
and a second side, the first side and the second side facing
generally in opposite directions. In addition, the climate control
system includes one or more fluid passages extending from the first
side to the second side of the cushion and a recessed area along
the first side of the cushion. In one embodiment, the recessed area
is in fluid communication with the fluid passage. The assembly
further comprises a spacer positioned within the recessed area. The
spacer can be at least partially fluid permeable and configured to
substantially retain the spatial integrity of the recessed area. In
some arrangements, the recessed area occupies at least about half
of a surface area of the first side of the cushion.
[0009] In some embodiments, the recessed area is configured to
further receive a scrim which includes at least one opening through
which fluids may pass. In one arrangement, the scrim comprises a
plurality of openings. In other embodiments, the scrim comprises a
single opening having an area generally greater than one-half of
the total area of the scrim. In one embodiment, the scrim comprises
one or more padding layers configured to generally enhance the
comfort to a seated occupant. In yet other arrangements, the
recessed area includes a bottom surface and at least one side
surface. In one embodiment, the recessed area includes at least one
film layer to cover at least of the bottom surface and the side
surfaces. In another embodiment, the film layer comprises an air
permeability that is lower than an air permeability of the
spacer.
[0010] In some arrangements, the film layer is attached to the
spacer. In yet other embodiments, the recessed area comprises a
generally rectangular shape, another polygonal shape, a circular or
other curved shape, an irregular shape and/or the like. In one
embodiment, the fluid passage is configured to be in fluid
communication with a fluid module. In some configurations, the
fluid module comprises a fluid transfer device. In other
arrangements, the fluid module further comprises a thermoelectric
device configured to selectively heat or cool a fluid. In some
arrangements, the climate control assembly additionally comprises
an occupant sensing device configured to detect when an occupant is
seated within the seat.
[0011] In one embodiment, the assembly further comprises a
resistive heater (e.g., a heating mat) and/or another type of
heating element of device. In some arrangements, the heating
element is generally positioned between the bottom surface of the
recessed area and an exterior surface of the seat. In other
embodiments, the heating element is generally integrated with the
spacer or is permanently or removably attached to it. In some
embodiments, the heating element comprises a plurality of slots or
other openings, which are configured to permit a fluid to pass
therethrough.
[0012] In some arrangements, the climate control assembly is
configured to be positioned within an automobile seat, another type
of vehicle seat, a bed, a sofa, a chair and/or the like. In one
embodiment, the first side of the cushion comprises at least one
pocket which is in fluid communication with the recessed area. The
pocket is configured to deliver a volume of fluid to a targeted
region of the cushion (e.g., legs, thighs, lower back, neck,
shoulders, etc.). In some arrangements, the pockets are coextensive
with the recessed area. In another embodiment, the spacer comprises
a unitary member that is shaped and sized to fit within both the
recessed area and the pocket. In other arrangements, the pocket is
separate from the recessed area. In yet other embodiments, the
pocket and the recessed area are in fluid communication using a
channel formed on the first side of the cushion. In still another
configuration, the pocket and the recessed area are in fluid
communication using a channel formed on the second side of the
cushion. In one embodiment, the pocket and the recessed area are in
fluid communication using a conduit positioned within the cushion,
generally between the first and second sides of the cushion.
[0013] In some arrangements, the fluid module is configured to
deliver fluid through the fluid passage in a direction generally
from the first side to the second side of the cushion. However, in
other embodiments, the fluid module is configured to deliver fluid
through the fluid passage in a direction generally from the second
side to the first side of the cushion. In still other embodiments,
the climate control assembly additionally comprises a second fluid
module and a second fluid passage, such that the second fluid
module is further configured to deliver fluid through the second
fluid passage in a direction generally from the second side to the
first side of the cushion. In some arrangements, the spacer
comprises a spacer fabric, member or the like. In other
embodiments, the fluid passage is configured to be selectively
placed in fluid communication with a vehicle's or a building's air
conditioning system (e.g., HVAC system).
[0014] According to some embodiments, a climate controlled seat
assembly includes a cushion having an outer surface comprising a
first side for supporting an occupant and a second side, the first
side and the second side facing generally in opposite directions.
The seat assembly further comprises one or more fluid passages
extending from the first side to the second side of the cushion and
a recessed area along the first side of the cushion, the recessed
area being in fluid communication with the fluid passage. In
addition, the seat assembly includes a spacer positioned within the
recessed area, the spacer being at least partially fluid permeable
and being configured to substantially retain the spatial integrity
of the recessed area. In some embodiments, the recessed area
comprises a depth between 5 and 15 mm. In other arrangements, the
depth of the recessed area can be greater than 15 mm or smaller
than 5 mm.
[0015] According to some arrangements, a climate controlled seat
comprises a cushion having an outer surface comprising a first side
for supporting an occupant and a second side, the first side and
the second side facing generally in opposite directions. The seat
further includes one or more fluid passages generally extending
from the first side to the second side of the cushion, a recessed
area along the first side of the cushion and a spacer positioned
within the recessed area, the spacer being at least partially fluid
permeable and being configured to substantially retain the spatial
integrity of the recessed area. The recessed is in fluid
communication with the fluid passage. In some arrangements, the
recessed area comprises a width to depth ratio between 8 and 40.
However, in other arrangements, the width to depth ratio is greater
than 40 or less than 8.
[0016] Accordingly, one aspect of the present inventions comprises
a seat portion and/or a backrest portion of seating assembly
comprising a recessed area or wide groove along its exterior
surface. The recessed area can be configured to receive a spacer
fabric that helps maintains the spatial and structural integrity of
the recessed area. The spacer fabric can be generally air and fluid
permeable. In addition, a scrim layer can be positioned over the
spacer fabric to help direct and/or distribute air or other fluid
to an exterior surface of the seating assembly. The recessed area
can also be configured to receive one or more films, occupant
sensory devices, heating devices and/or the like. Thus, air or
other fluid can be delivered into the recessed area of a seat or
backrest portion of a seating assembly, and subsequently delivered
through the spacer fabric and scrim layer towards an occupant. In
some embodiments, the air or fluid is conditioned (e.g., heated or
cooled) prior to entering the recessed area.
[0017] Another aspect of the present invention comprises a climate
controlled assembly having a cushion with an outer surface
comprising a first side for supporting an occupant and a second
side, the first side and the second side facing generally in
opposite directions. The assembly further comprises one or more
fluid passages extending from the first side to the second side of
the cushion and a recessed area along the first side of the
cushion. The recessed area being in fluid communication with the
fluid passage. The assembly further includes a spacer fabric
positioned within the recessed area, the spacer fabric being at
least partially fluid permeable and being configured to
substantially retain the spatial integrity of the recessed area.
The recessed area occupies at least about half of a surface area of
the first side of the cushion.
[0018] According to another embodiment, the recessed area is
configured to further receive a scrim layer that comprises one or
more openings. The scrim layer being configured to distribute fluid
through the openings. In other embodiments, the scrim layer
comprises a plurality of openings or just a single opening.
[0019] In some embodiments, the recessed area includes a bottom
surface and at least one side surface, the recessed area comprising
at least one substantially fluid impermeable film layer to cover at
least of the bottom surface and the side surfaces. In one
embodiment, the film layer is attached to the spacer fabric. In
another embodiment, the recessed area comprises a generally
rectangular shape.
[0020] According to some embodiments, the climate controlled
assembly further comprises at least one covering layer. In other
embodiments, the fluid passage is configured for attachment to a
fluid module. In one embodiment, the fluid module comprises a
thermoelectric device (e.g., Peltier device). In yet other
embodiments, the climate controlled assembly further comprises an
occupant sensing device and/or a heat mat or other heating
device.
[0021] In some embodiments, the heat mat is positioned between the
bottom surface of the recessed area and an exterior surface of the
assembly. In other embodiments, the assembly comprises an
automobile seat, a chair, a bed and/or the like.
[0022] Further features and advantages of the present invention
will become apparent to those of ordinary skill in the art in view
of the detailed description of preferred embodiments which follow,
when considered together with the attached drawings and claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0023] These and other features, aspects and advantages of the
present devices, systems and methods are described in detail below
with reference to drawings of certain preferred embodiments, which
are intended to illustrate, but not to limit, the present
inventions. The drawings contain thirty-one (31) figures. It is to
be understood that the attached drawings are for the purpose of
illustrating concepts of the present inventions and may not be to
scale.
[0024] FIG. 1A is a perspective view of a seat assembly that
includes a climate control system that is configured in accordance
with one embodiment of the present inventions;
[0025] FIG. 1B is a detailed perspective view of the seat portion
of the seat assembly of FIG. 1A, with certain climate control
components shown in exploded view;
[0026] FIG. 1C is a detailed perspective view of the seat portion
of a seat assembly with certain climate control components shown in
exploded view according to a different embodiment;
[0027] FIG. 2 is a perspective view of a seat back portion of the a
seat assembly according to one embodiment;
[0028] FIG. 3 is a schematic illustration of a climate control
system positioned within a seat portion of a seating assembly
according to one embodiment;
[0029] FIG. 4A is a perspective view of a seat assembly that
includes a climate control system that is configured in accordance
with another embodiment;
[0030] FIG. 4B is a detailed perspective view of the seat portion
of the seat assembly of FIG. 4A, with certain climate control
components shown in exploded view;
[0031] FIG. 5A is a perspective view of a seat assembly that
includes a climate control system that is configured in accordance
with another embodiment;
[0032] FIG. 5B is a detailed perspective view of the seat portion
of the seat assembly of FIG. 5A, with certain climate control
components shown in exploded view;
[0033] FIG. 6A is a perspective view of a seat assembly that
includes a climate control system that is configured in accordance
with another embodiment;
[0034] FIG. 6B is a detailed perspective view of the seat portion
of the seat assembly of FIG. 6A, with certain climate control
components shown in exploded view;
[0035] FIG. 7A is a perspective view of a seat assembly that
includes a climate control system that is configured in accordance
with another embodiment;
[0036] FIG. 7B is a detailed perspective view of the seat portion
of the seat assembly of FIG. 7A, with certain climate control
components shown in exploded view;
[0037] FIG. 8 is a detailed perspective view of the seat portion of
a seat assembly having certain climate control components shown in
exploded view according to one embodiment;
[0038] FIG. 9 is a detailed perspective view of the seat portion of
a seat assembly having certain climate control components shown in
exploded view according to another embodiment;
[0039] FIG. 10A is a perspective view of the seat portion of a seat
assembly comprising a climate control system according to one
embodiment;
[0040] FIG. 10B is a cross-sectional view of the seat portion of
the seat assembly of FIG. 10A;
[0041] FIG. 11A is a perspective exploded view of one embodiment of
a spacer module configured to be positioned within a recessed area
of a seat back portion or a seat bottom portion of a seat
assembly;
[0042] FIG. 11B is a perspective view of the spacer module of FIG.
11A;
[0043] FIG. 12 is a cross-sectional view of a spacer module and a
fluid module positioned within a recessed area of a seat back
portion or a seat bottom portion of a seat assembly according to
one embodiment;
[0044] FIG. 13A is a perspective view of a recessed area within a
seat bottom portion comprising a temperature sensor according to
one embodiment;
[0045] FIG. 13B is a cross-sectional view of the seat bottom
portion of FIG. 13A;
[0046] FIG. 14A is a top view of a seat bottom portion of a seat
assembly having a recessed area and tie down trenches according to
one embodiment;
[0047] FIG. 14B is a top view of a seat bottom portion of a seat
assembly having two recessed areas and tie down trenches according
to a different embodiment;
[0048] FIGS. 15A-15C are perspective view of a seating assembly
comprising enclosures positioned within corresponding recessed
areas of the seat bottom and seat back portions according to one
embodiment;
[0049] FIG. 16A is a top view of one embodiment of a seat bottom
portion comprising covering attachment members positioned within
its tie down trenches and having a spacer assembly positioned
within a recessed area;
[0050] FIG. 16B is a detailed top view of the seat bottom portion
of FIG. 16A;
[0051] FIG. 16C is a top view of another embodiment of a seat
bottom portion comprising covering attachment members positioned
within its tie down trenches and having a spacer assembly
positioned within a recessed area; and
[0052] FIG. 16D is a detailed top view of the seat bottom portion
of FIG. 16C.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0053] This application is generally directed to a climate control
system for a seating assembly. The climate control system and the
various systems and features associated with it are described in
the context of an automotive seating assembly or other seat for a
vehicle because they have particular utility in this context.
However, the climate control system and the methods described
herein, as well as their various systems and features, can be used
in other contexts as well, such as, for example, but without
limitation, trains, planes, motorcycles, buses, other vehicles,
wheelchairs, sofas, task chairs, office chairs, other types of
chairs, beds and/or the like. However, for convenience, the climate
control system is described herein with specific reference to an
automotive seat assembly.
[0054] In accordance with some embodiments, a seat portion or a
backrest portion of seating assembly comprises a recessed area or
wide groove region along its exterior surface. The recessed area
can be configured to receive a spacer, spacer member or module
(e.g., spacer fabric) that helps to maintain the spatial and
structural integrity of the recessed area. The terms, "spacer,"
"spacer material," "spacer fabric" and "spacer module" are broad
terms and may be used interchangeably herein. In some arrangements,
the spacer is generally air permeable or substantially air
permeable. In addition, a scrim, scrim member or layer can be
positioned over the spacer to help direct and/or distribute air or
other fluid to one or more portions (e.g., an exterior surface) of
the seating assembly. In certain arrangements, the recessed area
can also receive one or more films, occupant sensory devices,
temperature sensors, comfort layers or members, heating devices
and/or the like. Air or other fluid can be delivered into the
recessed area of a seat bottom and/or seat back (or backrest)
portion of a seating assembly, and subsequently delivered through
the spacer and scrim towards an occupant. In some embodiments, the
air or fluid is conditioned (e.g., heated or cooled) prior to
entering the recessed area.
[0055] Advantageously, the systems, devices and methods disclosed
herein can help simplify the design of seat assemblies that
comprise climate control features. This can help reduce the cost
and time associated with the manufacturing, assembly and/or other
activities associated with providing and operating such assemblies.
In addition, the embodiments disclosed and illustrated herein can
help enhance the comfort level of the occupant.
[0056] In addition, the embodiments disclosed herein that include
spacer assemblies generally positioned within corresponding
recessed areas of a seat assembly can improve the packaging for
thin foam or high pressure regions of the seat. In addition, such
embodiments can help reduce the likelihood of collapse of recessed
areas, channels or other conveyance regions formed within a climate
controlled seating assembly. Further, such arrangements can help
reduce manufacturing, assembly, operating and/or other costs. For
example, the simplified design of such arrangements can help reduce
the complexity of a system and/or reduce the number of components
that are necessary. As discussed, the comfort to occupants may also
be enhanced, as there is a more balanced pressure distribution of
fluid exiting a surface of a seat bottom portion and/or a seat back
portion. In addition, the embodiments described and illustrated
herein can provide more uniform thermal conditioning and thermal
distribution.
[0057] FIG. 1A is a front perspective view of an embodiment of a
climate controlled seat assembly 30. As shown, the seat assembly 30
comprises a backrest 34, which can be coupled and/or used in
combination with a seat bottom portion 32 to form the seat assembly
30. The seat assembly 30 preferably includes a climate control
system 36, which will be described in more detail herein.
[0058] When an occupant sits in the seat assembly 30, the
occupant's seat is located on a top surface 46 of the seat portion
32 and the occupant's back contacts a front surface 48 of the
backrest portion 34. The backrest 34 and the seat portion cooperate
to support the occupant in a sitting position. It will be
appreciated that the seat assembly 30 can be configured and sized
to accommodate occupants of various size and weight. In addition,
while the back rest and seat portions 34, 32 are shown as separate
components in other arrangements they can be integrally formed or
divided into subcomponents.
[0059] In the illustrated embodiment, the seat assembly 30 is
similar to a standard automotive seat. However, as discussed
herein, certain features and aspects of the seat assembly 30
described herein may also be used in a variety of other
applications and environments. For example, certain features and
aspects of the seat assembly 30 may be adapted for use in other
vehicles, such as, for example, airplanes, boats, wheelchairs
and/or the like. Further, certain features and aspects of the seat
assembly 30 may also be adapted for use in stationary environments,
such as, for example, a chair, a sofa, a stool, a theater seat, an
office seat (e.g., a chair that is used in a place of business
and/or residence) and/or the like. In addition, certain features
and aspects of the seat assembly 30 can be adapted for use in
devices that do not support a person in a seated position, such as,
for example, a bed.
[0060] With continued reference to the embodiments illustrated in
FIGS. 1A and 2, the backrest 34 has a front side 54, a rear side
56, a top side 58 and a bottom side 60. Although not illustrated,
the backrest 34 can include a pair of sides that extend between the
top side 58 and bottom side 60 for providing lateral support to the
occupant of the seat assembly 30.
[0061] As shown, the backrest 34 is generally formed by a cushion
72, which may be covered with a covering material (not shown), such
as, for example, upholstery, vinyl, leather and/or any other
suitable material. Typically, the cushion 72 can be supported on a
frame or support member 74. In some embodiments, springs (not
shown) may be positioned between the frame 74 and the cushion 72.
The frame 74 can provide the seat assembly 30 with structural
support, while the cushion 72 can provide a soft seating surface.
The covering material, in turn, can provide an aesthetic appearance
and/or a soft feel to the surface of the seat assembly 30. In some
embodiments, the cushion 72 also has a rear side 73, which is
generally opposite the front side 48 of the cushion 72 and adjacent
to the frame 74.
[0062] The cushion 72 can comprise an automotive seat cushion foam
(e.g., closed cell foam, open cell foam, combinations thereof,
etc.) or other types of materials with suitable characteristics for
providing support to an occupant. Such materials include, but are
not limited to, closed or open-celled foam.
[0063] FIG. 1B illustrates a detailed view of the seat bottom
portion 32 of the seat assembly of FIG. 1A. For clarity, several of
the climate control components of the seat portion 32 are depicted
in exploded view. In the illustrated embodiment, the top surface 46
of the seat portion 32 comprises a recessed area 100 or a wide
channel. As shown, in the illustrated embodiment, the recessed area
100 can be generally rectangular and positioned at or near the
center of the seat portion 32. Further, the recessed area 100
covers at least half of the top surface of the seat portion 32. For
example, the recessed area encompasses approximately 50%, 55%, 60%,
65%, 70%, 75%, 80%, 85%, 90%, 95%, 100% or ranges between such
values of the top surface area of the seat portion 32. The "top
surface area" of to the area of the seat surface (back or seat)
that is typically contacted by the user. In the illustrated
embodiment, the recess area 100 advantageously does not include
sub-channels or small passages that extend from a common opening or
plenum.
[0064] According to some embodiments, a climate controlled seat
assembly includes a cushion having an outer surface comprising a
first side for supporting an occupant and a second side, the first
side and the second side facing generally in opposite directions.
The seat assembly further comprises one or more fluid passages
extending from the first side to the second side of the cushion and
a recessed area along the first side of the cushion, the recessed
area being in fluid communication with the fluid passage. In
addition, the seat assembly includes a spacer positioned within the
recessed area, the spacer being at least partially fluid permeable
and being configured to substantially retain the spatial integrity
of the recessed area. In some embodiments, the recessed area
comprises a depth between 5 and 15 mm. In other arrangements, the
depth of the recessed area can be greater than 15 mm or smaller
than 5 mm.
[0065] According to some arrangements, a climate controlled seat
comprises a cushion having an outer surface comprising a first side
for supporting an occupant and a second side, the first side and
the second side facing generally in opposite directions. The seat
further includes one or more fluid passages generally extending
from the first side to the second side of the cushion, a recessed
area along the first side of the cushion and a spacer positioned
within the recessed area, the spacer being at least partially fluid
permeable and being configured to substantially retain the spatial
integrity of the recessed area. The recessed is in fluid
communication with the fluid passage. In some arrangements, the
recessed area comprises a width to depth ratio between 8 and 40.
However, in other arrangements, the width to depth ratio is greater
than 40 or less than 8.
[0066] In other embodiments, however, the recessed area 100 can
have a different shape, size, dimensions, spacing, location, depth
and/or any other characteristics. For example, the recessed area
100 can have a generally circular, oval, triangular, other
polygonal, irregular or any other shape. Moreover, the recessed
area 100 can cover approximately half or less than half of the
total top surface area of the seat portion 32. For example, in some
embodiments, the recessed area 100 encompasses approximately 5%,
10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50% or ranges between such
values of the top surface area of the seat portion 32.
[0067] In some embodiments, a seat portion 32 can comprise two or
more recessed areas 100 along its top surface 46. It will be
appreciated that the size, shape, spacing, locations and other
characteristics of such recessed areas 100 can vary, as desired or
required by a particular application.
[0068] As illustrated in FIG. 1B, the recessed area 100 or wide
channel formed within the top surface of the seat portion 32 and/or
the backrest portion 34 can be relatively shallow or thin so that
it does not extend very far into the respective seat cushion.
However, in other embodiments, the recessed area 100 can be deeper
than illustrated and discussed herein. In some embodiments, the
depth of the recessed area 100 can vary between 6 mm (0.24 in) and
16 mm (0.63 in). In one embodiment, the recessed area 100 comprises
a depth of approximately 10 mm (0.40 in). In other embodiments,
however, the depth of the recessed area 100 can be greater than 16
mm, less than 6 mm and/or any value in between these depths.
[0069] In addition, the length, width and/or other dimensions of
the recessed area 100 can vary as desired or required by a
particular application. In one embodiment, the recessed area 100
comprises a width approximately between 140 mm (5.5 in) and 180 mm
(7.0 in). For example, in one embodiment, the width of the recessed
area is approximately 160 mm (6.3 in). Likewise, the length of the
recessed area 100 can also vary. In some embodiments, the length of
the recessed area 100 is approximately equal to its width. However,
the length of the recessed area 100 can be greater or less than its
width. The length and width can be based on one or more factors,
such as, for example, the overall size of the seating assembly, the
desired maximum and minimum fluid flow toward an occupant, the
types and thicknesses of layers (e.g., covering materials)
positioned on the seating assembly, whether the seating assembly
includes a heating pad and/or the like.
[0070] In some embodiments, the length, width, depth, shape and/or
other characteristics of the recessed area 100 can depend on the
size, dimensions, shape and other properties of the one or more
seat inserts to be positioned within the recessed area 100. The
dimensions of the recessed area 100 can be selected, at least in
part, by the location, number, shape, size and/or other details of
the conditioning zones positioned within the seating assembly. For
example, the recessed area 100, and thus, the corresponding
inserts, spacers and/or other items positioned therein, may extend
to or near the front of the seat portion (e.g., to deliver air or
other fluid near the occupants thigh or leg region).
[0071] In some embodiments, a seat portion and/or seat back portion
of a seating assembly can include one, two, three or more different
recessed areas 100. For example, in the embodiment illustrated in
FIG. 1C, the seat portion 32A includes two recessed areas 100A,
100B. As shown, the recessed areas 100A, 100B can be positioned
adjacent to each other and can generally include a similar size,
shape and/or other characteristics. However, it will be appreciated
that the spacing, location along the surface 46A of the seat
portion 32A, shape, dimensions and/or other details can vary. For
instance, one recessed area 100A can be smaller or larger than
another recessed area 100B. Further, one recessed area 100A can
have a different length, width, depth, shape, orientation and/or
any other characteristics than the other recessed area 100B. In
addition, as discussed, a seat portion 32A can have more or fewer
recessed areas 100A, 100B than illustrated and described
herein.
[0072] For simplicity, the features and components of the various
embodiments of the climate control systems disclosed herein are
illustrated and discussed only with respect to the seat portion 32
of a seat assembly 30. However, it will be appreciated that such
features and components can be incorporated into the seat back or
backrest portion 34 of the seat assembly 30, either in lieu of or
in addition to the seat portion 32.
[0073] In some embodiments, the recessed areas 100 can be created
by removing (e.g., cutting) material from the top surface of the
seat portion 32 and/or backrest portion 34. Alternatively, the seat
portion 32 and/or backrest portion 34 can be manufactured with the
recessed areas 100 already formed therein. For example, in some
arrangements, the foam material of the seat portion 32 can be
molded (e.g., injection molded, compression molded, etc.) or
otherwise formed to include one or more recessed areas 100
extending across its top surface 46.
[0074] With continued reference to FIG. 1B, the recessed area 100
is preferably in fluid communication with a fluid inlet 120 or
similar passage. In some embodiments, the fluid inlet 120 extends
completely or partially through the body of the seat bottom 32. The
inlet 120 can then be in fluid communication with a fluid module,
fan or other fluid transfer device to deliver a volume of air or
other fluid to the recessed area of the seat portion 32. As is
discussed in greater detail herein, the air or other fluid being
delivered to the recessed area 100 can be unconditioned (e.g.,
ambient) and/or conditioned (e.g., heated, cooled, etc.). In some
embodiments, the fluid module, fan, other fluid transfer device or
the like can comprise or be in fluid communication with a
thermoelectric device (TED), such as, for example, a Peltier
device, in order to provide the necessary cooling and/or heating to
the air or other fluid being conveyed. In other embodiments, a
heating element (e.g., a resistive heating element) can be
positioned downstream or upstream of the fluid module. In such an
embodiment, the heating element can be activated along with the
fluid module to provide heated air to the inlet 120 and in a second
mode the fluid module can be activate alone to provide a cooling
affect as unconditioned air is transferred to the inlet 120. For
additional information regarding the use of heating elements to
selectively heat air other fluids being conveyed in a climate
control system for a seating assembly, see U.S. patent application
Ser. No. 11/087,215, filed Mar. 23, 2005 and published as U.S.
Publication 2006/0214480, the entirety of which is hereby
incorporated by reference herein.
[0075] With continued reference to FIG. 1B, the seat portion 32
comprises a spacer fabric 108 that is configured to fit within the
recessed area 100. In some embodiments, the spacer fabric 108 is
configured to generally retain its three-dimensional shape when
subjected to compressive and/or other types of forces. The spacer
fabric 108 can advantageously include internal pores or passages
that permit air or other fluid to pass therethrough. For example,
the spacer fabric 108 can comprise an internal lattice or other
structure which has internal openings at least partially extending
from the top surface to the bottom surface of the spacer fabric
108. The spacer fabric 108 can be manufactured from one or more
durable materials, such as, for example, foam, plastic, other
polymeric materials, composites, ceramic, rubber and/or the like.
The rigidity, elasticity, strength and/or other properties of the
spacer fabric can be selectively modified to achieve the desired
balance between comfort and durability. In some embodiments, the
spacer fabric 108 can comprise woven textile, nylon mesh material,
reticulated foam, open-cell foam and/or the like. The spacer fabric
108 can be advantageously breathable, resistant to crush and air
permeable. However, in other embodiments, a spacer fabric 108 can
be customized to suit a particular application. Therefore, the
breathability, air permeability and/or crush resistance of a spacer
fabric 108 can vary.
[0076] With continued reference to FIG. 1B, the spacer fabric 108
can be sized and shaped to generally match the size and shape of
the recessed area 100. However, in other embodiments, the size and
shape of the spacer fabric 108 can vary from that of the recessed
area 100. In certain embodiments, the two or more different spacer
fabrics 108 can be used in a single recessed area 100. The spacer
fabric 108 can also comprise one, two or more different layers, as
desired or required by a particular application.
[0077] As illustrated in FIG. 1B, a scrim layer 112 can be
positioned on top of the spacer fabric 108. In some embodiments,
the scrim layer 112 includes a plurality of openings 114. In the
depicted embodiment, the scrim layer 112 comprises a total eight
circular openings 114 which are generally aligned along two linear
lines. In other embodiments, however, the number, size, shape,
position, spacing, distribution and other characteristics of the
openings 114 in the scrim layer 112 can be varied, as desired or
required by a particular application. For example, the scrim layer
112 can be configured to have only a single opening 114, fewer than
eight openings 114 or greater than eight openings 114.
[0078] In certain embodiments, the scrim layer 112 is manufactured
from one or more materials that prevent or reduce air permeability
through it. Thus, air or other fluid can pass across the scrim
layer 112 generally only through openings 114. The openings 114 are
preferably configured to distribute air or other fluid to the
exterior surface of the seat and/or the backrest portions 32, 34 in
a desired manner. The scrim layer 112 can be advantageously sized
to match the dimensions of the recessed area 100. This can help
prevent air or other fluid from escaping the recessed area 100
along the edges of the scrim layer 112. However, the area of the
scrim layer 112 can be smaller than the area of the recessed area
100. In some embodiments, a recessed area 100 can include two or
more different scrim layers 112.
[0079] The use of a scrim layer 112, as well as a spacer fabric 108
and any other layers can help prevent read-through. For example,
the recessed areas 100 and any materials placed therein can be
preferably sized, shaped and otherwise configured to provide a
smooth, continuous feel to an occupant. Thus, in some embodiments,
the spacer fabric 108 and/or the scrim layer 112 can be sized,
shaped and otherwise configured to snugly fit within the recessed
areas of a seat assembly. This can help provide desired transitions
between the different materials and layers used in a
climate-controlled seat assembly. In addition, the firmness,
density, overall feel and other characteristics of the various
components of the seat assembly, such as, for example, the scrim
layer, the spacer fabric, other items positioned within a recessed
area, the adjacent materials of the cushion and/or the like, can be
advantageously selected to prevent read-through and enhance an
occupant's comfort level when seated on the seating assembly.
[0080] The scrim layer 112 can be fluid permeable, impermeable or
substantially impermeable, as desired or required by a particular
application. In some embodiments, the scrim layer 112 comprises a
relatively thick impermeable or substantially impermeable layer,
such as, for example, foam, other polymeric material and/or the
like. Alternatively, the scrim layer 112 can include a relatively
thin layer of polymeric, fabric, foam and/or other material.
[0081] According to some embodiments, the scrim layer 112 and the
adjacent spacer fabric can be joined to each other prior to
insertion into the recessed area 100. Alternatively, the scrim
layer 112 can be integrated into a covering fabric or other
material that is placed along the exterior of the recessed area 100
and the seat portion 32. However, as discussed in greater detail
herein with respect to other embodiments, the scrim layer and/or
spacer fabric 108 can comprise a different configuration, as
desired or required.
[0082] With continued reference to FIG. 1B, the recessed area 100
can optionally include one or more film layers 104 position between
the lower surface of the recessed area 100 and the spacer material
108. As shown, the film layer 104 can be configured to generally
match the size and shape of the recessed area 100. In some
embodiments, the film layer 104 is attached to the bottom surface
102 of the recessed area 100 using adhesives, staples, clips, other
fasteners and/or any other methods or device. Alternatively, the
film layer 104 can be placed on top of the bottom surface 102 of
the recessed area 100 without any separate securement method or
device. In other embodiments, the film layer 104 comprises a
coating or spray applied to the bottom surface 102 of the recessed
area 100.
[0083] According to some embodiments, the film layer 104 is
configured to completely or partially prevent air or other fluids
from passing through it. The film layer 104 can be manufactured
from one or more flexible or non-flexible materials, such as, for
example, plastic, other polymeric or synthetic materials and/or the
like. Thus, when placed within the recessed area 100, the film
layer 104 helps prevent or reduce the passage of air or other fluid
through the bottom surface 102. This can help increase the volume
of air or other fluid that is transferred to the exterior surfaces
of the seating assembly 30 and reduce any undesirable fluid
losses.
[0084] In some embodiments, one or more film layers 104 can be used
to cover both the bottom and side surface of the recessed area 100.
Such an optional film layer 104 can be included as a part of the
foam assembly (e.g., an exterior and/or interior surface of the
cushion into which the recessed area is formed). For example, a
film layer 104 can be applied to the foam assembly as a spray,
coating, film and/or the like. Alternatively, the film layer 104
can be formed with or joined to the spacer fabric 108. In still
other embodiments, the film layer 104 can be a separate member that
may or may not be joined to any other portion or component of the
seating assembly 30.
[0085] It will be appreciated that one or more film layers can be
used with any of the embodiments illustrated and/or discussed
herein or equivalents thereof. As discussed, the film layer can
help reduce or prevent fluid losses in undesirable directions
(e.g., through the bottom or sides of the foam assembly), and thus,
may help increase the fluid flow directed toward an occupant.
[0086] In certain embodiments, the spacer fabric 108, the scrim
layer 112 and/or the film layer 104 are configured to completely
fill the recessed area 100 when positioned therein. Thus, the top
surface 46 of the cushion can be relatively smooth. After the
spacer fabric 108, the scrim layer 112 and/or the film layer 104
have been positioned within the recessed area 100, one or more
layers of fabric or other covering material can be placed on the
outside of the seat portion 32. As discussed, such a covering
material can provide an aesthetic appearance and/or a soft feel to
the surface of the seat assembly 30. In addition, the covering
material can hide the recessed area 100 and the various components
placed therein.
[0087] Likewise, as illustrated in FIG. 1C, separate film layers
104A, 104B, spacer materials 108A, 108B and/or scrim layers 112A,
112B can be positioned in each recessed area 100A, 100B. Further,
each recessed area 100A, 100B can comprise its own fluid inlet
120A, 120B that is in fluid communication with one or more fluid
modules (e.g., blowers, fans, other fluid transfer devices,
thermoelectric devices, etc.). In some embodiments, a single fluid
transfer device can be configured to deliver air or other fluid to
both recessed areas 100A, 100B. However, in other embodiments, each
recessed area 100A, 100B can comprise one or more dedicated fluid
transfer devices.
[0088] As with other embodiments discussed and illustrated herein,
each of the scrim layers 112A, 112B in FIG. 1C can include a
plurality of openings 114. In the depicted embodiment, each scrim
layer 112A, 112B comprises a total three circular openings 114
which are generally aligned along two linear lines. In other
embodiments, however, the number, size, shape, position, spacing,
distribution and/or other characteristics of the openings 114 in
the scrim layer 112A, 112B can be varied, as desired or required by
a particular application. For example, the scrim layer 112A, 112B
can be configured to have only a single opening 114.
[0089] In other embodiments, regardless of the number of recessed
areas a particular seating assembly comprises, the scrim layer 112
is generally permeable or porous. Thus, a scrim layer 112 can be
configured to allow air or other fluid to flow across it, generally
toward an occupant, either in lieu of or in addition to having a
plurality of larger openings 114.
[0090] The use of two or more recessed areas 100A, 100B in a seat
assembly can facilitate the delivery of fluids (e.g., heated or
cooled air) to more targeted locations of the seating assembly. For
example, it may be desirable to target the regions of the seat
portion and/or the seat back portion with which an occupant is
likely to make contact.
[0091] FIG. 3 is a schematic illustration of one embodiment of a
climate control system 36 for a seating assembly 30. The
illustrated fluid module 200 and the downstream fluid distribution
system 202 with which the fluid module 200 is in fluid
communication are situated within a seat portion 32 of the seat
assembly 30. The backrest 34 can include similar climate control
features and components, either in lieu of or in addition to the
seat portion 32.
[0092] As discussed, the fluid module 200 can be configured to
direct either ambient or thermally conditioned (e.g., heated,
cooled, etc.) air or other fluids to a top surface 48 of the seat
portion 32 and/or backrest portion 34 of the seat assembly 30.
Specifically, the climate control system can be configured to
provide conditioned air that is either heated or cooled relative to
the temperature of the exterior surfaces of the seating assembly
30. In other embodiments, unconditioned fluid (e.g., ambient air)
is directed to the exterior surfaces of the seating assembly 30 to
provide a cooling effect.
[0093] In other embodiments, the fluid module 200 is configured to
provide ambient (e.g., unconditioned) air to one or more exterior
surfaces of the seating assembly 30. Thus, the fluid module 200 can
be used to simply ventilate the seating assembly 30. In other
embodiments, a user can selectively control whether to provide
unconditioned or conditioned air to the seating assembly 30.
Further, a seating assembly 30 can be advantageously configured to
permit a user to selectively control the temperature, flowrate
and/or other properties of the air or fluid delivered by the fluid
module 200.
[0094] With continued reference to the embodiment illustrated in
FIG. 3, the fluid module 200 includes a thermoelectric device 204
for temperature conditioning (e.g., selectively heating and/or
cooling) air or other fluid flowing through or past the device 204.
In some embodiments, the thermoelectric device 204 is a Peltier
thermoelectric module. The illustrated fluid module 200 can also
include a main heat exchanger 214 for transferring heat to or from
the fluid that flows through or past the module 200 and the
downstream fluid distribution systems 202. The fluid module 200 can
also preferably include a secondary heat exchanger 216. Such a
secondary heat exchanger 216, which can be positioned generally
opposite of the main heat exchanger 214, can be used to waste or
absorb heat as needed. In some embodiments, a fluid module 200 can
simply comprise a fluid transfer device that is configured to
deliver thermally unconditioned fluid (e.g., ambient air) toward an
occupant. Thus, the fluid module 200 can be used to simply
ventilate a seating assembly.
[0095] Further, as schematically illustrated in FIG. 3, each fluid
module 200 can comprise one or more fluid transfer devices 206.
Such fluid transfer devices 206 can be used to convey air or other
fluid through or past the main and/or waste heat exchangers 214,
216. The fluid transfer device 206 can comprise an electrical fan
or blower, such as, for example, an axial blower and/or radial fan.
In the illustrated embodiment, a single fluid transfer device 206
can be used to move air or other fluid past, near or through both
the main and waste heat exchangers 214, 216. However, in other
embodiments, separate heat transfer devices may be associated with
the secondary and heat exchangers 214, 216.
[0096] The fluid module 200 described herein represents only one
exemplary embodiment of a device that may be used to condition air
or other fluid supplied to the downstream distribution system 202.
Alternatively, differently configured fluid modules may be used to
provide conditioned and/or unconditioned fluid to one or more
portions of the seating assembly. Other examples of fluid modules
that may be used are described in U.S. Pat. Nos. 6,223,539,
6,119,463, 5,524,439 or 5,626,021, which are hereby incorporated by
reference in their entirety. Another example of such a fluid module
is currently sold under the trademark Micro-Thermal Module.TM. by
Amerigon, Inc. In another example, the fluid module comprises a
fluid transfer device without a thermoelectric device for thermally
conditioning the air. In such embodiments, the fluid transfer
device can be used to remove or supply air to the distribution
system 202. In yet other embodiments, the fluid module 200 is
configured to share one or more components (e.g., fluid transfer
devices, thermoelectric devices, etc.) with a vehicle's general
climate control system (e.g., a vehicle's HVAC system). In one
arrangement, the fluid module includes a fluid transfer device that
delivers air to a heating element (e.g., a resistive element) that
is positioned along the flow path between the fluid module 200 and
the recess 100. In one mode of operation, the heating element is
activated along with the fluid module 200 to selectively heat air
being delivered to the occupant. In a second mode, the fluid module
200 can be operated alone to provide a cooling function as unheated
air is supplied to the occupant.
[0097] With continued reference to the schematic illustration of
FIG. 3, air or other fluid is delivered by one or more fluid
transfer devices 206 through or past a thermoelectric device 204 to
selectively cool or heat the air or other fluid. The conditioned
air or other fluid is then conveyed into recessed area 100 of the
seat portion 32, via the fluid inlet 120. Next, the air or other
fluid passes through the spacer fabric 108 towards the scrim layer
112. As discussed, the spacer fabric 108 is preferably configured
to prevent the recessed area 100 from collapsing when forces are
exerted thereon. For example, in some embodiments, the spacer
fabric 108 is advantageously configured to resist any anticipated
downward forces imposed on the seat portion by a seated
occupant.
[0098] After the air or other fluid passes through the spacer
fabric 108, it may encounter a scrim layer 112. As discussed, the
air or other fluid can pass across the scrim layer 112 through one
or more openings 114. Air or other fluid conveyed through the
openings 114 of the scrim layer 112 may be distributed through one
or more covering layers toward the seat occupant.
[0099] As discussed with reference to FIG. 1B, one or more film
layers 104 can be positioned along the bottom surface 102, side
surfaces and/or any other portion of the recessed area 100 to
prevent air or other fluids from passing through the cushion of the
seat portion 32. It will be appreciated that the features and
components of a climate control system schematically illustrated in
FIG. 3 and discussed herein can be incorporated into the seat back
portion 34 of a seat assembly, either in lieu of or in addition to
the seat portion 32.
[0100] In FIGS. 4A and 4B, the seat portion 32 of a seating
assembly 30 includes a climate control system 36b according to
another embodiment. Similar to other embodiments disclosed herein,
the illustrated seat portion 32 includes a recessed area 100 or a
wide channel that is configured to receive a spacer fabric 108, a
scrim layer 112b and/or a film layer 104. The illustrated scrim
layer 112b includes one large center opening 114b instead of a
plurality of openings as depicted in FIG. 1B. Thus, as air or other
fluid passes through the spacer fabric 108, it is generally
directed through the relatively large opening 114b located toward
the center of the scrim layer 112b. Accordingly, air or other fluid
passing through the scrim layer 112b can be delivered through one
or more layers (e.g., foam, covering layer, etc.) towards a seated
occupant.
[0101] Such a window-style scrim layer 112b with a relatively large
interior opening 114b can allow for a distributed conditioned zone
to be created along the corresponding exterior surface of the seat
portion 32 and/or backrest portion 34 of the seating assembly 30.
Thus, in such embodiments, the scrim layer 112b can help mask the
transition between the foam or other material surrounding the
recessed area 100 and the spacer fabric 108 positioned underneath
the scrim layer 112b.
[0102] In other embodiments, the openings 114b in the scrim layer
112b can be differently configured than illustrated in FIGS. 4A and
4B. For example, the opening 114b can have a different shape, size,
location, position, orientation and/or any other characteristics.
In addition, two or more relatively large openings 114b can be
included in a scrim layer 112b.
[0103] With reference to FIGS. 5A and 5B, the seat assembly can
include one or more padding or comfort layers 312 that include a
plurality of circular openings 314 through which air or other fluid
may pass. Similar to other embodiments discussed and illustrated
herein, air or other fluid entering the recessed area 300 or wide
groove area of the seat portion 332, may pass through the spacer
fabric toward the comfort layer 312. The number of openings 314 in
the padding layer 312 can vary depending on the type of fluid
distribution desired or required for a particular application.
According to some embodiments, in addition to being configured to
distribute air or other fluid toward a seat assembly occupant, the
padding layer 312 can enhance an occupant's comfort level. For
example, the padding layer 312 can comprise the necessary materials
and/or configuration to provide a cushioning effect for a seat
assembly occupant. In some embodiments, the thickness of the
padding or comfort layer 312 may be selected to further augment the
feel to an occupant.
[0104] With reference to the embodiment illustrated in FIGS. 6A and
6B, the seat portion 432 can include a recessed area 400 or a wide
groove area which is in fluid communication with one or more fluid
inlets 420. As discussed herein with respect to other embodiments,
conditioned and/or unconditioned air can be conveyed into the
recessed area 400 through the fluid inlet 420. A spacer fabric 410
can be positioned within the recessed area 400. In some
embodiments, the spacer fabric 410 is shaped, sized and otherwise
configured to fit generally snugly within the recessed area 400.
Alternatively, however, the spacer fabric 410 may be configured to
fit more loosely within the recessed area 400.
[0105] As discussed with respect to other embodiments, the spacer
fabric 410 can be configured to maintain the integrity of the
recessed area 400 when forces are exerted on the seat assembly 430.
In some embodiments, the spacer fabric 410 is air permeable or
substantially air permeable to permit air or other fluids entering
the recessed area 400 to pass through it. Thus, ambient, heated,
cooled and/or otherwise conditioned air or other fluid can be
advantageously directed toward the top surface of the 446 of the
seat portion 432. It will be appreciated that a similar fluid
distribution system can be included in the backrest portion 434 of
the seating assembly 430, either in lieu of or in addition to the
seat portion 432.
[0106] In some embodiments, as illustrated in FIG. 6B, the recessed
area 400 of a seat portion 432 or a backrest portion 434 is
configured to receive only a spacer fabric 410. In other
embodiments, however, one or more other components may be placed
within the recessed area 400 to further enhance the fluid transfer
properties of the seating assembly 430. For example, as discussed
with respect to other arrangements, a scrim layer, a film layer, a
comfort layer and/or any other layer can be placed on either side
of the spacer fabric 410. It will be appreciated that the exact
order of various components placed within a recessed area 400 can
be varied as desired or required by a particular application.
[0107] With continued reference to FIG. 6B, once air or other fluid
is transferred into the recessed area 400 through the fluid inlet
420, it may be conveyed across the body of the spacer fabric 410.
Therefore, such air or other fluid can be distributed through the
spacer fabric 410 and toward the top surface 446 of the seat
portion 432. The air or other fluid can pass through one or more
additional layers (e.g., covering materials, foam layers, scrim
layers, comfort layers, etc.) before ultimately reaching an
occupant situated within the seating assembly 430. By eliminating
the need for a separate scrim layer, a film layer and/or the like,
the depicted embodiment can facilitate the manufacturing and/or
assembly of a climate controlled seat assembly 430.
[0108] Another embodiment of a climate controlled seating assembly
530 is illustrated in FIGS. 7A and 7B. As shown, the recessed area
500 of the seat portion 532 can be configured to receive a spacer
fabric 508 and a heat mat 512. The heat mat 512 can comprise a
plurality of slits 514 or other openings across its surface.
Further, the scrim layer 512 can be configured to permit air or
other fluid to pass across it only or predominantly through such
slits 514. The depicted arrangement comprises a total of ten slits
514, which are generally parallel to one another and are positioned
along the outer edges of the heat mat 512. However, the size,
shape, position, orientation, spacing and/or other characteristics
of the heat mat 512 or other heating device can be different than
illustrated and discussed herein.
[0109] The heat mat 512 can include flexible electrical heating
elements that can be generally thin, flat, and/or otherwise
non-obtrusive. For example, the heat mat 512 can comprise a
lay-wire heater, a carbon fiber heater, a positive thermal
coefficient (PTC) heater, a thermoelectric heater or the like,
which can be supported a backing substrate (e.g., a cloth or fabric
type backing) may form the heat mat 512. In other embodiments, a
heat layer is integrated with the spacer fabric using one or more
attachment methods. For example, the heat layer and the spacer
fabric can be joined using adhesives, mechanical bonding, melt
bonding, clips, other fasteners, interlacing and/or any other
connection method or device. In other embodiments, a heat layer and
a spacer fabric can be joined by passing or otherwise arranging the
strands or other portions of a heater (e.g., wire heater, carbon
fiber heater, PTC, etc.) through the spacer fabric. In some
embodiments, one or more strands of a conductive heating wire can
be weaved or otherwise integrated or incorporated directly into a
spacer fabric material.
[0110] In FIG. 7B, as with other embodiments that include a scrim
layer, the heat mat 512 can be configured to be non-air permeable
or partially-air permeable to fluid flow. This can permit air or
other fluid to be transferred across the heat mat 512 only or
predominantly through the slots 514, slits or any other openings.
Consequently, the flow distribution of conditioned or unconditioned
fluid towards a seated occupant can be advantageously controlled.
However, the quantity, shape, size, spacing, location,
configuration and/or other details of the openings can be different
than illustrated and discussed herein.
[0111] The seat assembly illustrated in FIG. 8 is substantially
similar to the embodiment of FIGS. 1A and 1B. As shown, the
recessed area 600 of the seat portion 632 can include pockets 602A,
602B or other protruding areas that are configured to extend the
conditioning and/or ventilation zones to target specific regions of
the seat assembly. With reference to the embodiment depicted in
FIG. 8, the seat portion 632 includes two pockets 602A, 602B that
extend toward the front of the seat assembly, generally underneath
where an occupant's thighs or upper legs would be normally
positioned. Consequently, a fraction of the air or other fluid that
enters the recessed area 600 can move towards the pockets 602A,
602B. As in the main portion of the recessed area 600, air or fluid
can then move toward an occupant through one or more layers, such
as, for example, a spacer fabric 608, 610, a scrim layer 612, 618,
a covering material, a heating layer, a comfort layer and/or the
like. In the illustrated embodiment, the pockets 602A, 602B are
generally coextensive with the recessed area 600. Alternatively,
however, the pockets 602A, 602B can be non-coextensive with and
separate from the recessed area 600. It will be appreciated that
the features and components of a climate control system disclosed
herein with reference to FIG. 8 can be incorporated into the seat
back portion (not shown) of a seat assembly, either in lieu of or
in addition to the seat portion 632. Accordingly, a seat back
portion can include a recessed area having one or more pockets
602A, 602B or other protruding areas.
[0112] With continued reference to FIG. 8, each of the pockets
602A, 602B can be configured to receive a film layer 606 on its
bottom surface, a spacer fabric 610, and a scrim layer 618. In FIG.
8, these layers are illustrated in exploded view only for a single
pocket 602A. However, it will be appreciated that another set of
such layers, or any other combination of layers, can be positioned
in the other pocket 602B.
[0113] In other embodiments, the film layer 604, spacer fabric 608,
scrim layer 612, heat layer, comfort layer and/or other layers can
be sized, shaped or otherwise configured to fit within the entire
recessed area 600, including one or more pockets 602A, 602B that a
recessed area 600 may include. For example, in FIG. 8, the film
layer 604, the spacer fabric 608 and the scrim layer 612 may
include two extensions on one of their sides to snugly fit within
the recessed area 600 of the illustrated seat portion 632.
Likewise, as illustrated in the embodiment of FIG. 9, the spacer
fabric 710 can include two extensions 712A, 712B which are
configured to fit within the corresponding pockets 702A, 702B of
the recessed area 700.
[0114] In some embodiments, a seating assembly includes more or
fewer conditioning or ventilation pockets than illustrated and
discussed herein. In addition, such pockets can be positioned in
one or more other areas of a seat portion and/or a seat back
portion of a seating assembly. For example, a seat back portion can
include pockets that extend the conditioning (e.g., heating,
cooling, etc.) and/or ventilation zones toward an occupant's neck
or shoulders. As discussed and illustrated herein, the layers that
fit within the recessed area having such pockets can be a single
unitary member or may comprise two or more separate portions.
[0115] Such pockets 602A, 602B, 702A, 702B can help expand the
areas of a seating assembly to which conditioned and/or
unconditioned air is delivered. Consequently, a user's comfort
level can be enhanced without having to use larger recessed areas
throughout the seat portion and/or seat back portion of a seating
assembly. In some embodiments, the seat assembly can be configured
to permit an occupant to selectively control which and to what
extent (e.g., temperature, flowrate, etc.) pockets are activated at
any particular time.
[0116] In other embodiments, a seat portion and/or seat back
portion includes one or more conditioning or ventilation pockets
that are not in fluid communication with a main recessed area. For
example, such pockets can include their own inlets for receiving
air or other fluid from one or more fluid transfer devices. In one
embodiment, a pocket includes its own inlet and is in fluid
communication with a main recessed area. Thus, a user can
selectively regulate the level of conditioning and/or ventilation
to a particular region of the seating assembly by controlling the
flowrate, temperature and/or other characteristics of the fluid
entering the pocket via the pocket's own inlet.
[0117] In other embodiments, one or more conditioning and/or
ventilation pockets are not coextensive or non-continuous with a
main recessed area. Thus, such pockets can be placed in fluid
communication with a main recessed area, or with each other, using
one more fluid channels or conduits. For example, a pocket situated
near the thigh region of the seat portion or the neck region of the
seat back portion can be completely separate from the main recessed
area. In order to deliver conditioned and/or unconditioned (e.g.,
ambient air) to such pockets, a fluid channel or other conduit
(e.g., tubing, passageway, etc.) can be positioned within the
cushion or other portion of the seating assembly. In other
embodiments, one or more pockets are in fluid communication with a
recessed area using channels or other conduits positioned within
the cushion of and/or on the back side of the seat portion and/or
the seat back portion. Alternatively, the pockets can comprise
their own inlets which are in fluid communication with one or more
fluid modules or fluid transfer devices.
[0118] In still other embodiments, one or more regions of the
seating assembly are targeted for additional or supplemental
conditioning or ventilation by incorporating other types of the
fluid delivery and distribution systems into the seat portion
and/or seat back portion. For example, air or other fluids can be
delivered into one or more fluid channels or recessed areas
incorporated into the back side of the seat portion and/or the seat
back portion. Such channels or recessed areas can include a
plurality of orifices and/or one or more air permeable surfaces to
permit the air or other fluid to be transferred to the front side
of the seating assembly, generally in the direction of a seated
occupant. Such channels or recessed areas on the back surfaces of
the seat portion and/or seat back portions can be sized, shaped,
located, oriented and/or otherwise adapted to target specific
portions of an occupant's body (e.g., thigh, lower back, neck,
other contact surfaces, etc.).
[0119] FIGS. 10A and 10B illustrate another embodiment of a seat
bottom portion 832 of a seat assembly being configured to transfer
ambient and/or thermally conditioned air or other fluid toward
and/or away from a seated occupant. As shown, the seat bottom
portion 832 can include a plurality of holes 840 or other openings.
In the depicted arrangement, there are six holes 840 are positioned
at or near the center of the seat bottom portion 832. The holes 840
are oriented in a circular pattern and comprise a generally oval
shape. However, in other embodiments, the quantity, size, shape,
position, spacing and/or other details of the holes 840 or other
openings can vary, as desired or required.
[0120] With reference to the cross-sectional view of FIG. 10B, the
holes 840 can be configured to be in fluid communication with a
cavity 844 or other region generally located on the opposite side
of the seat cushion 833. As shown, a fluid module 850 can be
positioned within such a cavity 844. In some embodiments, the fluid
module 850 comprises a blower, fan or other fluid transfer device.
The fluid module 850 can additionally include a thermoelectric
device (e.g., Peltier device) or other component that is adapted to
selectively heat and/or cool air or other fluid being transferred
into or out of the holes 840. The fluid module 850 can be secured
to the cushion 833 and/or any other portion of the seat assembly
using clips, screws, other fasteners, adhesives and/or any other
connection device or method.
[0121] Accordingly, air or other fluid may be selectively
transferred through the holes 840 of the seat bottom portion 832,
without the need for a spacer (e.g., spacer fabric or other
material) or the like. As discussed, the fluid module 850 can be
configured to deliver fluid toward (e.g., in a direction generally
represented by arrow 854) and/or away from the top of the seat
assembly. The holes 840 or other openings can be created when the
corresponding portion of the seat assembly is being formed (e.g.,
using injection molding or other forming techniques).
Alternatively, the holes 840 can be formed after the seat bottom
portion or the seat back portion has been manufactured (e.g., by
removing material from the cushion).
[0122] In some arrangements, one or more spacer assemblies (e.g.,
spacer material or fabric), films, scrims, comfort layers and/or
any other members can be positioned within the holes 840. In
addition, it will be appreciated that a seating assembly can
include such a climate control system in the seat back portion,
either in addition to or in lieu of the seat bottom portion 832.
Further, a seat bottom portion 832 and/or a seat back portion can
include two, three or more such climate control assemblies.
[0123] FIGS. 11A and 11B illustrate one embodiment of a spacer
module 920 configured to be positioned within a recessed area of a
seat bottom and/or seat back portion of a climate controlled seat
assembly. As shown, the spacer module 920 can include a base
portion 922 which may comprise a recessed area 924. In some
embodiments, the recessed area 924 is generally defined by a lip or
other protruding features generally positioned along the perimeter
of the base portion 922. A plurality of holes 928 or other openings
can be positioned within the recessed area 924 of the base portion
922. For example, in the depicted embodiment, a total of twelve
holes 928 are positioned at or near the center of the recessed area
924 in a generally circular orientation. However, it will be
appreciated that the quantity, shape, size, position, spacing
and/or other details of the holes 928 can vary.
[0124] In the embodiment illustrated in FIGS. 11A and 11B, the
recessed area 924 of the spacer module 920 can be sized, shaped and
otherwise configured to receive one or more spacers 930 (e.g.,
spacer fabric or member) or other air-permeable materials. Thus, as
air or other fluid is delivered through the holes 928 or other
openings, it can be distributed into the spacer member 930. As
discussed herein with reference to other arrangements, one or more
scrim layers, comfort layers, covering layers and/or the like can
be positioned on top of the spacer member 930. Such layers can be
incorporated into the spacer module 930 or can be separate from it.
Regardless, air or other fluid exiting the spacer member 930 may be
configured to pass through such layers before being conveyed to a
seated occupant.
[0125] A fluid module (not shown) can be positioned within the
spacer module 920 (e.g., underneath the recessed area 924 of the
base portion 922). Thus, ambient and/or conditioned (e.g., heated,
cooled, etc.) air or other fluid can be delivered to or removed
from the spacer material 930 through the holes 928 or other
openings. Alternatively, the holes 928 or other openings can be in
fluid communication with a fluid module (e.g., blower, fan, other
fluid transfer device, etc.) that is not positioned within the
spacer module 920. For example, the spacer module 920 can be placed
in fluid communication with a fluid module located on the rear side
of a seat back portion or underneath the seat bottom portion. The
spacer module 920 illustrated in FIGS. 11A and 11B includes a
generally rectangular shape. However, the module 920 can include
any other shape depending on the characteristics of the recessed
area into which it will be placed. The spacer module 920 can be
secured within a recessed area of a seat back or seat bottom
portion of a seat assembly using adhesives, clips, other fasteners
and/or any other connection method or device.
[0126] A cross-sectional view of another embodiment of a climate
controlled seat assembly is illustrated in FIG. 12. As shown, the
seat cushion 1033 of a seat bottom portion 1032 and/or a seat back
portion 1034 can include an upper recessed area 1036 and a cavity
1038. A spacer module 1040 can be positioned within the upper
recessed area 1036 of the cushion 1033. The spacer module 1040 can
include a spacer fabric or other air permeable material configured
to generally retain its structural integrity during use. In some
embodiments, the spacer module may also include and/or may be
attached to one or more other layers or members, such as, for
example, films, scrims, comfort layers and/or the like.
[0127] With continued reference to FIG. 12, a fluid module 1050 can
be positioned within the cavity 1038 of the seat bottom portion
1032 and/or the seat back portion 1034 of the seat assembly. In
some arrangements, the fluid module 1050 includes a blower, fan,
another fluid transfer device, a thermoelectric device (e.g., for
selectively heating or cooling air or other fluid) and/or the like.
The fluid module 1050 can be attached (e.g., removably or
permanently) to the spacer module 1040 using one or more
intermediate members 1046, fasteners, adhesives and/or any other
connection device or method. Thus, the fluid module 1050 can be
directly integrated into the spacer module 1040. Accordingly, in
some arrangements, the spacer module 1040 and the fluid module 1050
can be positioned within the corresponding openings (e.g., the
recessed area 1036, cavity 1038, etc.) of the seat assembly as a
single structure. In one embodiment, the spacer module 1040 and the
fluid module 1050 can be conveniently installed into the seat
bottom portion 1032 and/or the seat back portion 1034 as single
unit through the top and/or front side of the seat assembly.
Alternatively, the spacer module 1040 and the fluid module 1050 can
be separate members that are configured to be individually secured
to the seat assembly.
[0128] FIGS. 13A and 13B illustrate an embodiment of a climate
controlled seat assembly comprising a temperature sensor 80. One or
more temperature sensors 80 can be positioned at any location
within or near a fluid stream. In the depicted embodiments, a
single temperature sensor 80 is generally positioned within the
recessed area 100 of the seat bottom portion 32. In other
embodiments, a temperature sensor 80 can be included within one or
more of the layers or members that are configured to be placed
within the recessed area 100. For example, one or more sensors 80
can be positioned in or adjacent to a spacer 108 (e.g., spacer
fabric or other member), a scrim layer, a comfort layer, a film
and/or the like. Further, one or more temperature sensors 80 can be
included within the fluid inlet 120 or at any other location of the
seat assembly that may come in contact with air or other fluid
being transferred by the fluid module 200 (e.g., an exterior
surface of the seat assembly). Information received from such
temperature sensors 80 can be transmitted (e.g., through hardwired
or wireless connections) to a controller and/or to any other
electrical component (e.g., fluid transfer device, thermoelectric
device, other components of the fluid module 200, etc.) to
advantageously maintain a desired cooling and/or heating setting.
It will be appreciated that one or more temperature sensors 80 can
be positioned within a fluid path of the seat back portion, either
in lieu of or in addition to the seat bottom portion 32.
[0129] FIG. 14A illustrates one embodiment of a seat bottom portion
32A having a plurality of tie-down trenches 90A, which are
configured to help attach a covering material (not shown) to the
seat assembly. The depicted arrangement includes a spacer member
40A positioned within a recessed area of the seat bottom portion
32A. The recessed area, and thus the spacer member 40A positioned
therein, are generally located between two tie-down trenches 90A.
Accordingly, since the spacer member 40A is continuous and does not
need to traverse across any tie-down trenches 90A and/or any other
features, a single fluid inlet 20A can be used to supply air or
other fluid to the recessed area and the spacer 40A positioned
therein.
[0130] However, as illustrated in FIG. 14B, a seat bottom portion
32B can include a tie-down trench 90B and/or another feature that
does not allow for a continuous recessed area and corresponding
spacer member. Thus, as discussed with reference to some
embodiments herein, a seat cushion 33B can include two or more
different recessed areas and spacer members 40B, 41B. As shown in
FIG. 14B, each recessed area can include its own fluid inlet 20B,
21B. The fluid inlets 20B, 21B can be in fluid communication with a
single fluid module (not shown) or separate fluid modules, as
desired or required. In other embodiments, one or more fluid ducts
or other passages can be used to place the various recessed areas
of a seat back and/or seat bottom portion in fluid communication
with each other. For example, such an interconnecting duct or
passage can be routed underneath one or more tie-down trenches
and/or other features. As with other arrangements disclosed herein,
it will be appreciated that the features illustrated in FIGS. 14A
and 14B can be applied to the seat back portion, either in lieu of
or in addition to the seat bottom portion.
[0131] FIGS. 15A-15C illustrate one embodiment of a climate
controlled seat assembly 1100 that includes one or more recessed
areas 1140, 1160 along the exterior surfaces of the seat bottom
portion 1132 and/or the seat back portion 1134. The depicted
embodiment will be discussed with reference to the seat bottom
portion 1132. However, it will be appreciated that the discussion
applies equally to the seat back portion 1134.
[0132] With continued reference to FIG. 15C, the cushion 1133 of
the seat bottom portion 1132 can include one or more recessed areas
1140 along an exterior surface. As discussed herein with respect to
other arrangements, the shape, size, orientation and/or other
details of such a recessed area 1140 can vary, as desired or
required. In FIG. 15C, the recessed area 1140 comprises a main
portion 1142 and an inlet portion 1144 generally located at or near
an edge of the main portion 1142. However, instead of being
positioned directly into the recessed area 1140, a spacer material
(e.g., spacer fabric) and/or one or more other layers or members
(e.g., a comfort layer, scrim, etc.) can be placed within an
enclosure 1150 or other encapsulating member. Thus, a single
enclosure 1150 can be sized, shaped and otherwise configured to be
conveniently placed within a recessed area of the seating assembly.
This can facilitate the assembly, transport, maintenance and/or
other tasks associated with the manufacture and operation of
climate controlled seat assemblies.
[0133] As illustrated in FIG. 15C, the enclosure 1150 can include
an interface portion 1154 that is adapted to fit within the inlet
portion 1144 of the recessed area 1140. Preferably, the interface
portion 1154 can be routed through the cushion 1133 in order to
place the enclosure 1150 and any components or members positioned
therein (e.g., spacer member, comfort layer, etc.) in fluid
communication with one or more fluid modules (not shown).
Accordingly, conditioned (e.g., heated, cooled, etc.) and/or
unconditioned (e.g., ambient) air or other fluids can be delivered
to the recessed area 1140 of the seat bottom portion. In some
embodiments, the enclosure 1150 comprises a plurality of openings
(not shown) along its top and/or side surfaces to permit the air or
other fluid that has been delivered into the enclosure 1150 from
the fluid module to exit toward a seated occupant. One or more
comfort layers, scrims, films and/or any other layer or member can
be positioned on top and/or below the enclosure 1150, as desired or
required. In other arrangements, an enclosure 1150 may not include
a spacer member or any other member therein. As discussed herein
and illustrated in FIG. 15B, a similar recessed area 1160 and
corresponding enclosure 1170 can be provided for the seat back
portion 1134, either in lieu of or in addition to the seat bottom
portion 1132.
[0134] The recessed areas 1140, 1160 are preferably positioned at
or near the middle of the seat bottom portion 1132 and/or the seat
back portion 1134. For example, in one embodiment, the recessed
area 1160 of the upper portion 1134 is generally located at least
15 mm away from each of the adjacent, vertically-oriented trenches
1137. However, in other embodiments, the recessed area 1160 and the
enclosure 1170 positioned therein are within 15 mm of one or more
trenches 1137 or other members. The shape, size, location,
orientation and/or other details of the recessed areas 1140, 1160
and/or the enclosures 1150, 1170 can vary.
[0135] FIG. 16A illustrates a top view of seat bottom portion 1232
of a climate controlled seating assembly according to another
embodiment. As shown, the seat bottom portion 1232 can include one
or more styling seams 1290 to which a covering material can attach.
In some arrangements, the styling seams 1290 are positioned within
trenches (e.g., tie-down trenches) formed within a cushion of the
seat assembly. In FIG. 16A, a styling seam 1290 is configured to
traverse across a recessed area of the cushion, and thus, a spacer
member 1240 positioned therein. Accordingly, as illustrated in the
detailed view of FIG. 16B, a scrim strip 1244, deflector member or
the like can be generally positioned between the spacer assembly
1240 and the styling seam 1290 that traverses across the recessed
area. Such a scrim strip 1244 can help secure the styling seam 1290
to the top surface of the seat bottom portion 1232. Consequently, a
covering material and/or any other layer can be properly applied to
the seating assembly.
[0136] In other embodiments, as illustrated in FIGS. 16C and 16D,
an attachment surface 1346 can be incorporated or otherwise secured
to the top of the spacer assembly 1340. For example, the attachment
surface 1346 can comprise a hook-and-loop fastener (e.g., Velcro),
adhesives, adhesive strips and/or any other connection method or
device. Accordingly, the styling seam 1390 can be effectively
continued across one or more recessed areas and spacer assemblies
1340 positioned therein to facilitate attachment of a covering
material or the like. In addition, for any of the embodiments
disclosed herein, the use of hook-and-loop fasteners, adhesive
strips, other adhesives and/or the like can be used to secure one
or more portion of a climate control system (e.g., spacer, scrim
comfort layer, film, heating mat or other heating device, etc.) to
each other and/or to another portion of the seat assembly (e.g., a
recessed area, another portion of the cushion, etc.).
[0137] It will be appreciated that in any of the embodiments of a
climate controlled assembly disclosed herein, such as, for example
those illustrated in FIGS. 1A through 16D, a fluid module or fluid
transfer device can be configured to either deliver air or other
fluid towards an occupant (e.g., the exterior side of a seat
portion or seat back portion) or to draw fluid from an occupant.
Thus, a fluid module or fluid transfer device can be configured to
create a positive or a negative force at a fluid inlet. In some
embodiments, an occupant can advantageously control whether such a
fluid module or fluid transfer device operates in a "push" or
"suction" mode. In addition, a climate controlled seating assembly
according to any of the various embodiments disclosed herein, or
variations thereof, can be configured to draw air or other fluid
from one portion of a spacer assembly while simultaneously pushing
air or other fluid through another portion of a spacer assembly
and/or a completely different spacer assembly.
[0138] With respect to the various embodiments discussed and
illustrated herein, one or more scrim layers can be integrated into
a different subsystem or component. For example, a scrim layer can
be attached to or otherwise joined with a heating member (e.g.,
heat mat or pad, etc.), an occupant sensing pad and/or the like.
Further, a sensing pad, heat mat and/or other member included in
the seating assembly can be configured to be activated either
automatically or manually. In yet another embodiment, a heat mat or
pad can be configured to act as a scrim layer. For example, as
illustrated in FIG. 7B, the heat mat, pad or other member can
include a plurality of orifices, slots and/or other openings to
allow air or other fluid to pass therethrough.
[0139] According to some embodiments, a heat mat, pad or other
heating device can be advantageously configured to allow for
generally even distribution of heat to one or more exterior
surfaces of a seating assembly. Further, such a heat mat can be
configured to permit conditioned and/or unconditioned fluid being
delivered into the recessed area to pass around the mat without the
need for openings or other channels though the mat.
[0140] Further, with respect to the various embodiments discussed
and illustrated herein, the scrim layer in combination with a
spacer fabric can help provide balance and consistent feel to an
occupant positioned on the seating assembly. This can help
alleviate any comfort concerns resulting from sitting on or against
uneven surfaces having transitions and other contour changes.
[0141] In some embodiments, regardless of the exact arrangement
utilized, two or more of the components placed within the recessed
area of a seat portion and/or a backrest portion can be joined to
each other. For example, a spacer fabric can be attached to a scrim
layer, a breathable fabric layer, a covering layer and/or the
like.
[0142] To assist in the description of the disclosed embodiments,
words such as upward, upper, downward, lower, vertical, horizontal,
upstream, and downstream have and used above to describe the
accompanying figures. It will be appreciated, however, that the
illustrated embodiments can be located and oriented in a variety of
desired positions.
[0143] Although these inventions have been disclosed in the context
of certain preferred embodiments and examples, it will be
understood by those skilled in the art that the present inventions
extend beyond the specifically disclosed embodiments to other
alternative embodiments and/or uses of the inventions and obvious
modifications and equivalents thereof. In addition, while a number
of variations of the inventions have been shown and described in
detail, other modifications, which are within the scope of these
inventions, will be readily apparent to those of skill in the art
based upon this disclosure. It is also contemplated that various
combinations or subcombinations of the specific features and
aspects of the embodiments may be made and still fall within the
scope of the inventions. Accordingly, it should be understood that
various features and aspects of the disclosed embodiments can be
combined with or substituted for one another in order to form
varying modes of the disclosed inventions. Thus, it is intended
that the scope of the present inventions herein disclosed should
not be limited by the particular disclosed embodiments described
above, but should be determined only by a fair reading of the
claims that follow.
* * * * *