U.S. patent application number 13/648763 was filed with the patent office on 2013-04-25 for portable cooling pad for seat.
The applicant listed for this patent is Zheng Yan Guo, Wei Zheng. Invention is credited to Zheng Yan Guo, Wei Zheng.
Application Number | 20130099529 13/648763 |
Document ID | / |
Family ID | 48135347 |
Filed Date | 2013-04-25 |
United States Patent
Application |
20130099529 |
Kind Code |
A1 |
Zheng; Wei ; et al. |
April 25, 2013 |
Portable Cooling Pad for Seat
Abstract
A cooling pad includes a bottom section, a top section, and a
middle section which together form a contoured surface to support a
person's back. The contoured surface includes concave and convex
sections, providing ventilated pockets which allow air to flow to a
person's back. Inside the middle section there are intake holes,
located on either side of the cooling pad, and exhaust holes,
positioned atop and below the middle section. The intake holes
allow air to be brought in from outside, while the exhaust holes
direct air to cool a person's back. Fan and power systems are
stored inside the middle section. The fan blows air through the
exhaust holes. The system as a whole is designed to utilize
negative pressure to bring fresh air in from the intakes, replacing
the air the fan pushes through the exhaust holes. The resulting
airflow prevents back sweat from occurring.
Inventors: |
Zheng; Wei; (Pompton Lakes,
NJ) ; Guo; Zheng Yan; (New York, NY) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Zheng; Wei
Guo; Zheng Yan |
Pompton Lakes
New York |
NJ
NY |
US
US |
|
|
Family ID: |
48135347 |
Appl. No.: |
13/648763 |
Filed: |
October 10, 2012 |
Related U.S. Patent Documents
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
|
|
61548935 |
Oct 19, 2011 |
|
|
|
Current U.S.
Class: |
297/180.14 |
Current CPC
Class: |
B60N 2/5657 20130101;
B60N 2/5692 20130101; A47C 7/744 20130101; B60N 2/5635
20130101 |
Class at
Publication: |
297/180.14 |
International
Class: |
A47C 7/74 20060101
A47C007/74 |
Claims
1. A cooling seat pad comprises, a cushioned lower back section; a
cushioned upper back section; a middle cooling section; a permeable
seat pad cover; the cushioned lower back section comprises a base
convex support and a lower concave recess; the cushioned upper back
section comprises a top convex support and an upper concave recess;
the middle cooling section comprises a lower end, an upper end, a
cooling housing, at least one fan, and a power source; the
cushioned lower back section being connected to the lower end of
the middle cooling section; and the cushioned upper back section
being connected to the upper end of the middle cooling section.
2. The cooling seat pad as claimed in claim 1 comprises, the
cushioned lower back section, the cushioned upper back section, and
the middle cooling section being enclosed by the permeable seat pad
cover.
3. The cooling seat pad as claimed in claim 1 comprises, the
cushioned lower back section being connected to the lower end of
the middle cooling section opposite the base convex support.
4. The cooling seat pad as claimed in claim 1 comprises, the
cushioned upper back section being connected to the lower end of
the middle cooling section opposite the top convex support.
5. The cooling seat pad as claimed in claim 1 comprises, the
cushioned lower back support further comprises a lower flat seat
surface and a lower contoured support surface; the cushioned upper
back support further comprises an upper flat seat surface and an
upper contoured support surface; the middle cooling section further
comprises a middle flat seat surface and a middle contoured support
surface; the lower concave recess being positioned on the lower
contoured support surface; the upper concave recess being
positioned on the upper contoured support surface; and the cooling
housing being convex shaped along the middle contoured support
surface, wherein the convex base support, convex cooling housing,
and convex top support provide support for a person's back and the
lower concave recess and upper concave recess provide ventilation
for the person's back.
6. The cooling seat pad as claimed in claim 1 comprises, the
cooling housing being positioned between the lower end and the
upper end; the cooling housing comprises a first side intake, a
second side intake, an upper exhaust, and a lower exhaust; the
first side intake being positioned opposite the second side intake;
the first side intake and the second side intake being positioned
laterally along the cooling housing; the upper exhaust traversing
into the cooling housing adjacent to the upper concave recess; the
lower exhaust traversing into the cooling housing adjacent to the
lower concave recess; the upper exhaust and lower exhaust each
being perpendicular to the first side intake and the second side
intake; and the upper exhaust and the lower exhaust being parallel
to each other.
7. The cooling seat pad as claimed in claim 6 comprises, the at
least one fan comprises a fan axis of rotation; the at least one
fan being positioned in the cooling housing; the at least one fan
being aligned with the upper exhaust and the lower exhaust; and the
fan axis of rotation being perpendicular with the first side
intake, the second side intake, the upper exhaust, and the lower
exhaust.
8. The cooling seat pad as claimed in claim 6 comprises, the power
source comprises a first battery and a second battery; the first
battery being positioned in the cooling housing between the first
side intake and the at least one fan; the second battery being
positioned in the cooling housing between the second side intake
and the at least one fan; and the first battery and the second
battery each being electrically connected to the at least one
fan.
9. The cooling seat pad as claimed in claim 6 comprises, the middle
cooling section further comprises an auxiliary power connection;
the auxiliary power connection being positioned on the cooling
housing adjacent to the first side intake; and the auxiliary power
connection being electrically connected to the power source.
10. A cooling seat pad comprises, a cushioned lower back section; a
cushioned upper back section; a middle cooling section; a permeable
seat pad cover; the cushioned lower back section comprises a base
convex support, a lower concave recess, a lower flat seat surface
and a lower contoured support surface; the cushioned upper back
section comprises a top convex support, an upper concave recess, an
upper flat seat surface and an upper contoured support surface; the
middle cooling section comprises a lower end, an upper end, a
cooling housing, at least one fan, a power source, a middle flat
seat surface and a middle contoured support surface; the cushioned
lower back section being connected to the lower end of the middle
cooling section; the cushioned upper back section being connected
to the upper end of the middle cooling section; the cooling housing
being positioned between the lower end and the upper end; the
cooling housing comprises a first side intake, a second side
intake, an upper exhaust, and a lower exhaust; the at least one fan
being positioned in the cooling housing; and the at least one fan
being aligned with the upper exhaust and the lower exhaust.
11. The cooling seat pad as claimed in claim 10 comprises, the
cushioned lower back section, the cushioned upper back section, and
the middle cooling section being enclosed by the permeable seat pad
cover; the cushioned lower back section being connected to the
lower end of the middle cooling section opposite the base convex
support; and the cushioned upper back section being connected to
the lower end of the middle cooling section opposite the top convex
support.
12. The cooling seat pad as claimed in claim 10 comprises, the
lower concave recess being positioned on the lower contoured
support surface; the upper concave recess being positioned on the
upper contoured support surface; and the cooling housing being
convex shaped along the middle contoured support surface, wherein
the convex base support, convex cooling housing, and convex top
support provide support for a person's back and the lower concave
recess and upper concave recess provide ventilation for the
person's back.
13. The cooling seat pad as claimed in claim 10 comprises, the
first side intake being positioned opposite the second side intake;
the first side intake and the second side intake being positioned
laterally along the cooling housing; the upper exhaust traversing
into the cooling housing adjacent to the upper concave recess; the
lower exhaust traversing into the cooling housing adjacent to the
lower concave recess; the upper exhaust and lower exhaust each
being perpendicular to the first side intake and the second side
intake; and the upper exhaust and the lower exhaust being parallel
to each other.
14. The cooling seat pad as claimed in claim 10 comprises, the at
least one fan comprises a fan axis of rotation; and the fan axis of
rotation being perpendicular with the first side intake, the second
side intake, the upper exhaust, and the lower exhaust.
15. The cooling seat pad as claimed in claim 10 comprises, the
power source comprises a first battery and a second battery; the
first battery being positioned in the cooling housing between the
first side intake and the at least one fan; the second battery
being positioned in the cooling housing between the second side
intake and the at least one fan; and the first battery and the
second battery each being electrically connected to the at least
one fan.
16. The cooling seat pad as claimed in claim 10 comprises, the
middle cooling section further comprises an auxiliary power
connection; the auxiliary power connection being positioned on the
cooling housing adjacent to the first side intake; and the
auxiliary power connection being electrically connected to the
power source.
17. A cooling seat pad comprises, a cushioned lower back section; a
cushioned upper back section; a middle cooling section; a permeable
seat pad cover; the cushioned lower back section comprises a base
convex support, a lower concave recess, a lower flat seat surface
and a lower contoured support surface; the cushioned upper back
section comprises a top convex support, an upper concave recess, an
upper flat seat surface and an upper contoured support surface; the
middle cooling section comprises a lower end, an upper end, a
cooling housing, at least one fan, a power source, a middle flat
seat surface and a middle contoured support surface; the cushioned
lower back section being connected to the lower end of the middle
cooling section; the cushioned upper back section being connected
to the upper end of the middle cooling section; the cooling housing
being positioned between the lower end and the upper end; the
cooling housing comprises a first side intake, a second side
intake, an upper exhaust, and a lower exhaust; the at least one fan
being positioned in the cooling housing; the at least one fan being
aligned with the upper exhaust and the lower exhaust; the cushioned
lower back section being connected to the lower end of the middle
cooling section opposite the base convex support; the cushioned
upper back section being connected to the lower end of the middle
cooling section opposite the top convex support; the at least one
fan comprises a fan axis of rotation; and the fan axis of rotation
being perpendicular with the first side intake, the second side
intake, the upper exhaust, and the lower exhaust.
18. The cooling seat pad as claimed in claim 17 comprises, the
cushioned lower back section, the cushioned upper back section, and
the middle cooling section being enclosed by the permeable seat pad
cover; the lower concave recess being positioned on the lower
contoured support surface; the upper concave recess being
positioned on the upper contoured support surface; and the cooling
housing being convex shaped along the middle contoured support
surface, wherein the convex base support, convex cooling housing,
and convex top support provide support for a person's back and the
lower concave recess and upper concave recess provide ventilation
for the person's back.
19. The cooling seat pad as claimed in claim 17 comprises, the
first side intake being positioned opposite the second side intake;
the first side intake and the second side intake being positioned
laterally along the cooling housing; the upper exhaust traversing
into the cooling housing adjacent to the upper concave recess; the
lower exhaust traversing into the cooling housing adjacent to the
lower concave recess; the upper exhaust and lower exhaust each
being perpendicular to the first side intake and the second side
intake; and the upper exhaust and the lower exhaust being parallel
to each other.
20. The cooling seat pad as claimed in claim 17 comprises, the
power source comprises a first battery and a second battery; the
first battery being positioned in the cooling housing between the
first side intake and the at least one fan; the second battery
being positioned in the cooling housing between the second side
intake and the at least one fan; the first battery and the second
battery each being electrically connected to the at least one fan;
the middle cooling section further comprises an auxiliary power
connection; the auxiliary power connection being positioned on the
cooling housing adjacent to the first side intake; and the
auxiliary power connection being electrically connected to the
power source.
Description
[0001] The current application claims a priority to the U.S.
Provisional Patent application Ser. No. 61/548,935 filed on Oct.
19, 2011.
FIELD OF THE INVENTION
[0002] The present invention relates generally to an apparatus for
cushions to be used in, for example: vehicle seats or office
chairs. More specifically, the apparatus is a breathable cooling
cushion that circulates air onto the user's back, while providing
support for the lower back.
BACKGROUND OF THE INVENTION
[0003] The present invention mainly targets vehicle operators, for
example taxi and bus drivers who must sit in the same seat for
extended periods of time, or office workers whose professions
require a long period of sitting, although the present invention
may be used by anyone. When sitting for a long duration of time,
sweat precipitation usually builds up due to the insulating nature
of the seat, causing discomfort for the person sitting. Also, due
to design limitations of chairs, the chair usually does not offer
enough lower back support for the sitter causing back strains.
Increased comfort for the sitter often means increased
productivity.
[0004] Current air conditioning technologies often use energy
inefficiently. The present invention provides a means of cooling
for a user under situations where air conditioning is not
necessary. For example, the vehicle operators can use the present
invention instead of car air conditioning in warm weathers; this
helps reduce fuel consumption and helps prevent back skin problems
due to sweat perspiration.
[0005] There are many people, especially elderly people, that have
back problems. There are many orthopedic cushions available on the
market to support the patient's back; however, because of the
insulating nature of the cushion, under elevated temperatures, the
user often experiences the same problem of back precipitation. When
using current cushions for a long period of time, the users get hot
and sweat on their back.
[0006] It is therefore an object of the present invention to
provide an add-on seat rest with cooling capability, usable with
any seat. It is a further object of the present invention to
prevent back sweat when a person remains seated for a long period
of time. It is a further object of the present invention to provide
a comfortable back rest for a sitting person, enhancing the sitting
experience.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] FIG. 1 is a front perspective view of the present
invention.
[0008] FIG. 2 is an internal front perspective view showing the
cooling housing of the present invention.
[0009] FIG. 3 is a front perspective view showing the cover of the
present invention.
[0010] FIG. 4 is a front view of the present invention.
[0011] FIG. 5 is an internal front view showing the cooling housing
of the present invention.
[0012] FIG. 6 is a rear perspective view of the present
invention.
[0013] FIG. 7 is side view of the present invention.
[0014] FIG. 8 is an internal top view of the present invention.
[0015] FIG. 9 is a front view showing the direction of air flow of
the present invention.
[0016] FIG. 10 is an internal top view showing the direction of air
flow of the present invention.
DETAIL DESCRIPTIONS OF THE INVENTION
[0017] All illustrations of the drawings are for the purpose of
describing selected versions of the present invention and are not
intended to limit the scope of the present invention.
[0018] The present invention is a cooling seat pad designed to cool
a person's back while sitting. The present invention is not
integral to an existing seat, nor does it modify the designs of
seats it is used in conjunction with. The present invention
comprises a cushioned lower back section 1, a cushioned upper back
section 6, a middle cooling section 11, and a permeable seat pad
cover 24, as seen in FIG. 1, FIG. 2, FIG. 3, FIG. 4, and FIG. 5.
The middle cooling section 11 is positioned between the cushioned
lower back section 1 and cushioned upper back section 6. The
cushioned lower back section 1 comprises a lower flat seat surface
2 and a lower contoured support surface 3. The cushioned upper back
section 6 comprises an upper flat seat surface 7 and an upper
contoured support surface 8. The middle cooling section 11
comprises a middle flat seat surface 12 and a middle contoured
support surface 13. The combined flat seat surface is planar and is
meant to rest against a seat, and is visible in FIG. 6 and FIG. 7.
The combined contoured support surface is opposite the combined
flat seat surface and is designed to support a person's back while
still allowing for ventilation. The permeable seat pad cover 24 is
a flexible breathable material that encases the rest of the cooling
seat pad, including the lower back section 1, upper back section 6,
and cooling section 11.
[0019] Illustrated in FIG. 1, the cushioned lower back section 1
additionally comprises a base convex support 4 and a lower concave
recess 5. The base convex support 4 forms a foundation for the
lower back section 1 and present invention as a whole. The lower
concave recess 5 is positioned atop the base convex support 4. The
cushioned upper back section 6 additionally comprises a top convex
support 9 and an upper concave recess 10, depicted in FIG. 1.
Similar to the cushioned lower back section 1, the top convex
support 9 and the upper concave recess 10 are positioned adjacent
to each other, with the top convex support 9 being connected atop
the upper concave recess 10. The cushioned lower back section 1
connects to the bottom part of the middle cooling section 11, with
the lower concave recess 5 being joined to a lower end 14 of the
middle cooling section 11. The cushioned upper back section 6 is
likewise connected to the middle cooling section 11, with the upper
concave recess 10 being joined to an upper end 15 of the middle
cooling section 11, positioned opposite the lower concave recess 5.
Overall, the combined contoured support surface provides an
ergonomic design to accommodate a person's natural back curvature.
The base convex support 4, the top convex support 9, and the middle
cooling section 11, profiled in FIG. 7, form bumps that support a
person's lower back or upper buttock, upper back, and waist,
respectively. The lower concave recess 5 and the upper concave
recess 10 create gaps between a person's back and the lower
contoured support surface 3 and upper contoured support surface 8,
respectively, allowing for effective air circulation.
[0020] In the preferred embodiment, the cushioned lower back
section 1, the cushioned upper back section 6, and the middle
cooling section 11 are made from environmentally friendly memory
foam. In alternative embodiments, the three sections could be made
from plastics, metals, or other materials as desired. In addition,
a solid frame could potentially be included if a person finds the
memory foam to be too soft for their personal taste. In addition,
the specific contours of the combined contoured support surface can
be adjusted to meet individual persons' needs, essentially
providing a custom fit. In addition, straps could be attached to
the three sections. These straps would wrap around the back of a
seat, allowing a person to secure the present invention to a seat,
rather than using it freestanding. If the straps are not included,
a person can rest the present invention against a seat and use it
as normal.
[0021] The middle cooling section 11 further comprises a cooling
housing 16, a fan 21, a power source 22, and an auxiliary power
connection 23, as pictured in FIG. 2 and FIG. 5. The cooling
housing 16 forms a cavity in the middle cooling section 11,
allowing the cooling housing 16 to accommodate the fan 21 and the
power source 22. The cooling housing 16 itself comprises a first
side intake 17, a second side intake 18, an upper exhaust 19, and a
lower exhaust 20. The first side intake 17 and second side intake
18 are located on opposite sides of the cooling housing 16,
traversing through the middle cooling section 11 between the middle
flat seat surface 12 and middle contoured support surface 13. This
can be seen in FIG. 4 and FIG. 5. The upper exhaust 19 cuts into
the cooling housing 16 from above, and is adjacent to the upper
concave recess 10. The lower exhaust 20, positioned opposite the
upper exhaust 19, cuts into the bottom of the cooling housing 16,
adjacent to the lower concave recess 5. As seen in FIG. 7, the
auxiliary power connection 23 is positioned on the side of the
middle cooling section 11, adjacent to the first side intake 17 and
between the middle flat seat surface 12 and middle contoured
support surface 13. The power source 22 is positioned in the
cooling housing 16 to the side of the fan 21, and is electrically
connected to the fan 21. As a result, the fan 21 is powered by the
power source 22. The positioning of the power source 22 is intended
to minimize obstruction of air flow.
[0022] In the preferred embodiment, the cooling housing 16 is built
as a plastic housing, though in other embodiments other materials
can be employed. Inside the housing 16 there is preferably a single
fan 21, as well as a single auxiliary power connection 23. The
auxiliary connection 23 is preferably positioned on the side of the
present invention closest to the center console, and thus cigarette
lighter, of a car. Therefore, a driver's version would have the
auxiliary power connection 23 next to the first side intake 17,
while a passenger's version would have the auxiliary power
connection 23 next to the second side intake 18. In the preferred
embodiment, like illustrated in FIG. 2 and FIG. 5, the power source
22 includes a first battery 221 and a second battery 222,
positioned on either side of the fan 21. The first battery 221 and
second battery 222 are each a high capacity lithium polymer
battery, and together act as the main power supply for the fan 21.
The batteries are electrically connected to the auxiliary power
input. When the auxiliary power connection 23 is connected to an
external power source, such as a car's cigarette lighter, the
batteries will be recharged by the auxiliary power connection
23.
[0023] Though the first battery 221 and second battery 222 are
preferably placed in the cavity of the cooling housing 16 for ease
of access, in alternative embodiments they could also be recessed
into the middle cooling section 11. The cooling housing 16 itself
is preferably integrated into the middle cooling section 11, but in
an alternative embodiment the cooling housing 16 could be removable
from the middle cooling section 11. Other deviations from the
preferred embodiment include using multiple fans 21, additional
batteries, or different type of batteries. The batteries selected
should be high efficiency, rechargeable, and capable of operating
the fan 21 for a minimum of 8 hours. While the auxiliary power
connection 23 preferably connects to a cigarette lighter,
potentially it could be designed to interface with a Universal
Serial Bus (USB) or standard home outlet. An adapter could be
provided to allow the preferred embodiment to be charged from a
variety of sources, such as 12 volt supplies in the car or home.
Instead of the preferred standard fan 21, bladeless fans can be
used to replace the preferred standard fan 21, enhancing air flow
as well as safety. In fact, any component capable of moving air can
be used in place of the standard fan 21, although cost and
complexity may become issues when pursuing alternative methods of
air flow.
[0024] The permeable seat pad cover 24, as mentioned earlier, is
made from a breathable material. The permeable seat pad cover 24 is
designed to form a sleeve around the combined cushioned lower back
section 1, cushioned upper back section 6, and middle cooling
section 11, as in FIG. 3. The permeable seat pad cover 24 allows
air to flow into the first side intake 17 and the second side
intake 18, as well as out of the upper exhaust 19 and the lower
exhaust 20. In addition to permitting air flow, the permeable seat
pad cover 24 acts as a limited filter, inhibiting dust accumulation
inside the cooling housing 16. The permeable seat pad cover 24
needs to include an input opening for the auxiliary power
connection 23; this input opening allows a person to charge the
present invention by means of the auxiliary power connection 23,
without having to remove the permeable seat pad cover 24 to gain
access to the auxiliary power connection 23.
[0025] The material used to manufacture the permeable seat pad
cover 24 can be varied, as long as the material is breathable.
Linen and viscose rayon are just two examples of materials which
can be used to make the permeable seat pad cover 24. In other
embodiments, additional components could be added to enhance the
effectiveness of the permeable seat pad cover 24. One such possible
addition is the use of air filters at the first side intake 17 and
second side intake 18.
[0026] The present invention provides cooling by means of the fan
21, the first side intake 17, the second side intake 18, the upper
exhaust 19, and the lower exhaust 20. The present invention is
designed to utilize free flowing air, rather than air channels, to
achieve the cooling. When the fan 21 is activated, it blows air,
pushing the air through and out of the upper exhaust 19 and the
lower exhaust 20. The air exits from the upper exhaust 19 and the
lower exhaust 20, into the upper concave recess 10 and lower
concave recess 5, respectively. As a result, the exhausted air
blows onto a person's lower and upper back, providing air flow and
helping to inhibit perspiration. As the air is pushed by the fan 21
out of the cooling housing 16 and through the upper exhaust 19 and
lower exhaust 20, an area of low pressure is created in the cooling
housing 16. In order to equalize the pressure, air is pulled in
from the first side intake 17 and the second side intake 18 into
the cooling housing 16. The direction of airflow is illustrated in
FIG. 9 and FIG. 10.
[0027] In alternative embodiments, an upper fan and lower fan could
simply be placed at the upper exhaust 19 and lower exhaust 20. In
this example, the upper fan and the lower fan would blow directly
towards a person's back, rather than splitting the air flow of a
single fan 21 between the upper exhaust 19 and lower exhaust 20.
The invention would still function similarly, with air being pushed
through the upper exhaust 19 and lower exhaust 20, and fresh air
being pulled in through the first side intake 17 and the second
side intake 18.
[0028] Another possible configuration includes placing exhaust fans
at the first side intake 17 and the second side intake 18. In this
instance the exhaust fans push air out of the first side intake 17
and the second side intake 18, effectively turning them into
exhaust points. Again, this will create a lower pressure area in
the cooling housing 16, which will cause fresh air to be pulled in
from the upper exhaust 19 and lower exhaust 20, which are
essentially acting as intake points. As the air is pulled in
through the upper exhaust 19 and the lower exhaust 20, a person
will feel a breeze due to air moving from the upper concave recess
10 and the lower concave recess 5, into each exhaust.
[0029] With the use of additional fans 21, more configurations are
possible; as long as the fan setup creates air flow across a user's
back, the function of the invention is served. If more fans 21 are
used it may be necessary to incorporate additional intake and
exhaust points. Alternatively, the fans 21 can be stacked to
provide double, or even triple fans 21.
[0030] In addition to being provided as a separate accessory, the
present invention could be integrated into seats and chair designs,
to provide better cooling for a user. This would result in a more
secure seat cushion, although it would also make repairs more
difficult when compared to a removable design. Although the present
invention is intended for use in cars, where drivers often remain
seated for long periods of time, the present invention can be used
in conjunction with any seat or chair. The present invention does
not limit support for additional seat support features.
[0031] Although the invention has been explained in relation to its
preferred embodiment, it is to be understood that many other
possible modifications and variations can be made without departing
from the spirit and scope of the invention as hereinafter
claimed.
* * * * *