U.S. patent application number 13/258709 was filed with the patent office on 2012-05-10 for mattress with cooling and heating function.
Invention is credited to Jung Ho An.
Application Number | 20120110734 13/258709 |
Document ID | / |
Family ID | 45067174 |
Filed Date | 2012-05-10 |
United States Patent
Application |
20120110734 |
Kind Code |
A1 |
An; Jung Ho |
May 10, 2012 |
MATTRESS WITH COOLING AND HEATING FUNCTION
Abstract
Disclosed is a mattress, which performs a cooling function under
a high temperature environment owing to air permeability thereof
and a thermal function under a low temperature environment via
natural convection, thereby providing a pleasant sleep environment
in all temperature conditions. The mattress includes a cushioning
member to perform a cushioning operation, a thermal laminate member
disposed on one surface of the cushioning member, a heating element
to perform a heating operation upon receiving power and to exhibit
elasticity, a cooling laminate member disposed on the other surface
of the cushioning member and having air permeability, and a cover
member to surround an outermost portion of the mattress. By simply
changing the orientation of the mattress and using the elastic
cooling and heating members, the mattress is compatibly used all
the year round to provide a pleasant sleep environment without
deterioration of an intrinsic cushioning function and load
dispersing/supporting function.
Inventors: |
An; Jung Ho; ( Gyeonggi-do,
KR) |
Family ID: |
45067174 |
Appl. No.: |
13/258709 |
Filed: |
May 30, 2011 |
PCT Filed: |
May 30, 2011 |
PCT NO: |
PCT/KR2011/003947 |
371 Date: |
January 18, 2012 |
Current U.S.
Class: |
5/423 ;
5/421 |
Current CPC
Class: |
A47C 21/046 20130101;
A47C 21/048 20130101 |
Class at
Publication: |
5/423 ;
5/421 |
International
Class: |
A47C 21/04 20060101
A47C021/04 |
Foreign Application Data
Date |
Code |
Application Number |
May 31, 2010 |
KR |
10-2010-0051811 |
Claims
1. A mattress with cooling and heating functions, the mattress
comprising: a cushioning member configured to perform a cushioning
operation; a thermal laminate member disposed on one surface of the
cushioning member; a heating element configured to perform a
heating operation upon receiving power and to exhibit elasticity to
resist external force; a cooling laminate member disposed on the
other surface of the cushioning member and which is configured to
have air permeability; and a cover member configured to surround an
outermost portion of the mattress.
2. The mattress according to claim 1, further comprising a heat
blocking planar element disposed on an outer surface of the thermal
laminate member and which serves to prevent heat from being
transferred inward, wherein the heating element is disposed on an
outer surface of the heat blocking planar element, and wherein the
cooling laminate member includes a permeable pad formed by weaving
elastic linear members into a plate shaped net.
3. The mattress according to claim 2, further comprising an air
circulating fan configured to suction outside air into the mattress
or to discharge the interior air of the mattress to the outside,
wherein the air circulating fan is located at a lateral portion of
the cover member.
4. The mattress according to claim 3, further comprising an
extendable device including a cylinder secured to the mattress at a
predetermined position and a rod configured to move in linkage with
contraction and expansion of the mattress, wherein the air
circulating fan is mounted to the cylinder so as to remain
stationary without a risk of oscillation.
5. The mattress according to claim 2, wherein the cooling laminate
member further includes: a net interposed between an inner surface
of the permeable pad and the cushioning member; and a dual fabric
disposed on an outer surface of the permeable pad and which
includes an upper fabric and a lower fabric vertically spaced apart
from each other, with connective yarns interposed therebetween, and
woven to exhibit air permeability.
6. The mattress according to claim 5, wherein the thermal laminate
member includes: a hard pad disposed in contact with the surface of
the cushioning member and which is formed into a plate shape to
have air permeability; a soft pad disposed in contact with an outer
surface of the hard pad and which is formed into a plate shape to
have air permeability; and a foam pad disposed in contact with an
outer surface of the soft pad and which is formed into a plate
shape to have air permeability.
7. The mattress according to claim 6, wherein the cover member
includes: a lining fabric disposed in contact with the heating
element and the cooling laminate member and which is woven to have
air permeability; a cover fabric additionally provided on an outer
surface of the lining fabric and which internally defines a hollow
region and has a plurality of vent holes communicating with the
hollow region; and a shock absorbing material interposed between
the lining fabric and the cover fabric and which serves to perform
a shock absorbing operation.
8. The mattress according to claim 2, wherein the heat blocking
planar element is formed of a fabric, which is densely woven to
increase heat retention effects by preventing heat from being
transferred inward and which is subjected to flame retardant
finishing to achieve heat resistance.
9. The mattress according to claim 1, wherein the thermal laminate
member or the cooling laminate member is foam provided with pores
having a diameter ranging from 1 mm to 30 mm, and a polymer resin
mixed with functional particles is coated and hardened on the
foam.
10. The mattress according to claim 1, wherein the thermal laminate
member or the cooling laminate member is formed of a dual fabric,
wherein the dual fabric includes an upper fabric, a lower fabric
downwardly spaced apart from the upper fabric with a space
interposed therebetween, and connective yarns interposed in the
space to connect the upper fabric and the lower fabric to each
other, and wherein the upper fabric, the lower fabric and the
connective yarns are formed of elastic textile yarns or metal
yarns.
11. The mattress according to claim 10, wherein the dual fabric
includes a foam layer provided in the space.
12. The mattress according to claim 10 or 11, wherein the heating
element includes a heating conductive wire disposed in the dual
fabric and which serves not only to perform a heating operation
upon receiving power, but also to exhibit elasticity to resist
external force.
13. The mattress according to claim 2, wherein the heating element
includes a heating conductive wire disposed in the air permeable
pad and which serves not only to perform a heating operation upon
receiving power, but also to exhibit elasticity to resist external
force.
14. The mattress according to claim 1, wherein the cushion member
includes an array of a plurality of compressive springs, and
wherein the heating element is a planar heating element, which is
formed by weaving weft yarns and warp yarns into a planar structure
and simultaneously, weaving at least one strand of conductive wire
in a warp yarn direction to have a linear shape or a wave shape,
and wherein the weft yarns and/or the warp yarns include elastic
polymer yarns to provide the planar heating element with
elasticity.
15. The mattress according to claim 14, wherein the conductive wire
includes a centrally located core yarn, a plurality of strands of
insulated conductive yarns twisted on an outer circumference of the
core yarn, and a plurality of strands of textile yarns wound on the
conductive yarns to form a coating layer, or includes a centrally
positioned elastic core yarn formed of an elastic polymer yarn, a
plurality of strands of insulated conductive yarns wound on the
core yarn, and a sheath layer elastically formed on an outer
circumference of the conductive yarns.
16. The mattress according to claim 15, wherein the planar heating
element is separably coupled to an adjacent member.
17. The mattress according to claim 15, wherein the cover member
includes a vent hole to enable flow of air into the mattress, and
wherein the vent hole is provided with an opening/closing door to
prevent air heated during the heating operation of the heating
element from leaking to the outside of the mattress.
18. The mattress according to claim 14, wherein an additional pad
is detachably attached to the planar heating element and contains
particles formed of at least one of a far-infrared radiation
material, an electromagnetic shielding material, an anion
generating material and a sterilizing and antibacterial
material.
19. A mattress with cooling and heating functions, the mattress
comprising: a cushioning member configured to perform a cushioning
operation; a laminate member disposed on one surface of the
cushioning member; a fluid transfer pipe disposed on an outer
surface of the laminate member, through which a heating or cooling
fluid moves; a fluid storage container in which the fluid to be
moved to the fluid transfer pipe is received; a fluid circulator
configured to circulate the fluid through the fluid transfer pipe;
a heat exchanger configured to heat or cool the fluid to be moved
to the fluid transfer pipe; an input unit configured to input the
temperature, flow rate and movement time of the fluid moving
through the fluid transfer pipe; a control unit configured to
control the fluid circulator and the heat exchanger in response to
an input signal from the input unit; and a cover member configured
to surround an outermost portion of the mattress.
20. The mattress according to claim 19, further comprising: a
temperature sensor configured to sense the temperature of the fluid
within the fluid transfer pipe and apply the sensed signal to the
control unit; and a humidity sensor configured to sense the
interior humidity of the mattress and apply the sensed signal to
the control unit, wherein the fluid circulator includes a
circulation pump, and wherein the heat exchanger is a
thermoelectric semiconductor module in which substrates are
provided at both sides of P-type and N-type thermoelectric
semiconductors and which is adapted to be increased or decreased in
temperature according to the supply direction of power so as to
heat or cool the fluid.
21. The mattress according to claim 20, further comprising at least
one selected from among a dual fabric and a foam, wherein the dual
fabric includes an upper fabric and a lower fabric vertically
spaced apart from each other with connective yarns interposed
therebetween and woven to have an interior space for installation
of the fluid transfer pipe, and wherein the foam has a hole for
installation of the fluid transfer pipe.
22. The mattress according to claim 20, further comprising
waterproof sheets provided respectively at upper and lower sides of
the fluid transfer pipe.
Description
TECHNICAL FIELD
[0001] The present invention relates to a mattress with cooling and
heating functions, and more particularly, to a mattress with
cooling and heating functions, which is capable of performing a
cooling function under a high temperature environment owing to air
permeability thereof and of performing a heating function under a
low temperature environment via natural convection, thereby
providing a pleasant sleep environment in all temperature
conditions.
BACKGROUND ART
[0002] Generally, owing to modernization, change of a residential
culture to apartments and the like, the percentage of the
population that uses beds is gradually increasing and currently,
most homes possess beds. A bed is constituted of a bed frame and a
mattress installed to the bed frame. The mattress may be classified
into a spring mattress, a latex mattress, a stone mattress and a
Hwangto (yellow soil) mattress, according to constituent materials
or cushioning types thereof.
[0003] Although a bed using a spring mattress or a latex mattress
has a greater cushioning function than a bed using a stone mattress
or a Hwangto mattress and thus, provides comfort and ease during
sleep, it is not provided with a heating device, which may cause a
user to feel cold in the winter.
[0004] For this reason, most users of this kind of mattress use a
cover, such as an electric blanket, on an upper surface of the
mattress, to achieve thermal effects if necessary.
[0005] Such an electric blanket has conventionally been fabricated
in such a manner that a serpentine copper wire, which serves as a
heating wire, is embedded in a planar body, or in such a manner
that carbon textile yarns are woven to construct a planar heating
element and cover sheets overlay respectively upper and lower
surfaces of the planar heating element. However, since the electric
blanket lacks elasticity, covering a mattress with the non-elastic
electric blanket may disadvantageously deteriorate or disable
intrinsic cushioning effects of an ergonomic mattress obtained by
heavy investment and research and development.
[0006] In addition, although many conventional mattresses have been
fabricated to employ a spring or latex foam as a shock absorbing
interior material, due to the fact that the latex foam has poor air
permeability although it exhibits cushioning effects, a mattress
employing a spring shock absorbing member is mainly used to achieve
air permeability. However, this spring mattress still has
difficulty in providing a comfortable sleep environment in the
summer because of insufficient air permeability thereof.
DISCLOSURE
Technical Problem
[0007] An object of the present invention devised to solve the
problem lies on a mattress with cooling and heating functions,
which is capable of performing a cooling function under a high
temperature environment owing to air permeability thereof and of
performing a thermal function under a low temperature environment
via natural convection, thereby providing a pleasant sleep
environment in all temperature conditions.
[0008] Another object of the present invention devised to solve the
problem lies on a mattress with cooling and heating functions,
which is capable of performing a thermal function via natural
convection without hindering not only a cushioning function of an
ergonomic mattress for a sound sleep, but also a load dispersion
function to uniformly disperse and support the weight of a human
body.
Technical Solution
[0009] The object of the present invention can be achieved by
providing a mattress with cooling and heating functions, the
mattress including a cushioning member configured to perform a
cushioning operation, a thermal laminate member disposed on one
surface of the cushioning member, a heating element configured to
perform a heating operation upon receiving power and to exhibit
elasticity to resist external force, a cooling laminate member
disposed on the other surface of the cushioning member and which is
configured to have air permeability, and a cover member configured
to surround an outermost portion of the mattress.
[0010] The mattress may further include a heat blocking planar
element disposed on an outer surface of the thermal laminate member
and which serves to prevent heat from being transferred inward, the
heating element may be disposed on an outer surface of the heat
blocking planar element, and the cooling laminate member may
include a permeable pad formed by weaving elastic linear members
into a plate shaped net.
[0011] The mattress may further include an air circulating fan
configured to suction outside air into the mattress or to discharge
the interior air of the mattress to the outside, wherein the air
circulating fan is located at a lateral portion of the cover
member.
[0012] The mattress may further include an extendable device
including a cylinder secured to the mattress at a predetermined
position and a rod configured to move in linkage with contraction
and expansion of the mattress, the air circulating fan may be
mounted to the cylinder so as to remain stationary without a risk
of oscillation.
[0013] The cooling laminate member may further include a net
interposed between an inner surface of the permeable pad and the
cushioning member, and a dual fabric disposed on an outer surface
of the permeable pad and which includes an upper fabric and a lower
fabric vertically spaced apart from each other, with connective
yarns interposed therebetween, and woven to exhibit air
permeability.
[0014] The thermal laminate member may include a hard pad disposed
in contact with the surface of the cushioning member and which is
formed into a plate shape to have air permeability, a soft pad
disposed in contact with an outer surface of the hard pad and which
is formed into a plate shape to have air permeability, and a foam
pad disposed in contact with an outer surface of the soft pad and
which is formed into a plate shape to have air permeability.
[0015] The cover member may include a lining fabric disposed in
contact with the heating element and the cooling laminate member
and which is woven to have air permeability, a cover fabric
additionally provided on an outer surface of the lining fabric and
which internally defines a hollow region and has a plurality of
vent holes communicating with the hollow region, and a shock
absorbing material interposed between the lining fabric and the
cover fabric and which serves to perform a shock absorbing
operation.
[0016] The heat blocking planar element may be formed of a fabric,
which is densely woven to increase heat retention effects by
preventing heat from being transferred inward and which is
subjected to flame retardant finishing to achieve heat
resistance.
[0017] The thermal laminate member or the cooling laminate member
may be foam provided with pores having a diameter ranging from 1 mm
to 30 mm, and a polymer resin mixed with functional particles is
coated and hardened on the foam.
[0018] The thermal laminate member or the cooling laminate member
may be formed of a dual fabric, the dual fabric may include an
upper fabric, a lower fabric downwardly spaced apart from the upper
fabric with a space interposed therebetween, and connective yarns
interposed in the space to connect the upper fabric and the lower
fabric to each other, and the upper fabric, the lower fabric and
the connective yarns may be formed of elastic textile yarns or
metal yarns.
[0019] The dual fabric may include a foam layer provided in the
space.
[0020] The heating element may include a heating conductive wire
disposed in the dual fabric and which serves not only to perform a
heating operation upon receiving power, but also to exhibit
elasticity to resist external force.
[0021] The heating element may include a heating conductive wire
disposed in the air permeable pad and which serves not only to
perform a heating operation upon receiving power, but also to
exhibit elasticity to resist external force.
[0022] The cushion member may include an array of a plurality of
compressive springs, and the heating element may be a planar
heating element, which is formed by weaving weft yarns and warp
yarns into a planar structure and simultaneously, weaving at least
one strand of conductive wire in a warp yarn direction to have a
linear shape or a wave shape, and the weft yarns and/or the warp
yarns may include elastic polymer yarns to provide the planar
heating element with elasticity.
[0023] The conductive wire may include a centrally located core
yarn, a plurality of strands of insulated conductive yarns twisted
on an outer circumference of the core yarn, and a plurality of
strands of textile yarns wound on the conductive yarns to form a
coating layer, or may include a centrally positioned elastic core
yarn formed of an elastic polymer yarn, a plurality of strands of
insulated conductive yarns wound on the core yarn, and a sheath
layer elastically formed on an outer circumference of the
conductive yarns.
[0024] The planar heating element may be separably coupled to an
adjacent member.
[0025] The cover member may include a vent hole to enable flow of
air into the mattress, and the vent hole may be provided with an
opening/closing door to prevent air heated during the heating
operation of the heating element from leaking to the outside of the
mattress.
[0026] An additional pad may be detachably attached to the planar
heating element and may contain particles formed of at least one of
a far-infrared radiation material, an electromagnetic shielding
material, an anion generating material and a sterilizing and
antibacterial material.
[0027] In another aspect of the present invention, provided herein
is a mattress with cooling and heating functions, the mattress
including a cushioning member configured to perform a cushioning
operation, a laminate member disposed on one surface of the
cushioning member, a fluid transfer pipe disposed on an outer
surface of the laminate member, through which a heating or cooling
fluid moves, a fluid storage container in which the fluid to be
moved to the fluid transfer pipe is received, a fluid circulator
configured to circulate the fluid through the fluid transfer pipe,
a heat exchanger configured to heat or cool the fluid to be moved
to the fluid transfer pipe, an input unit configured to input the
temperature, flow rate and movement time of the fluid moving
through the fluid transfer pipe, a control unit configured to
control the fluid circulator and the heat exchanger in response to
an input signal from the input unit, and a cover member configured
to surround an outermost portion of the mattress.
[0028] The mattress may further include a temperature sensor
configured to sense the temperature of the fluid within the fluid
transfer pipe and apply the sensed signal to the control unit, and
a humidity sensor configured to sense the interior humidity of the
mattress and apply the sensed signal to the control unit, the fluid
circulator may include a circulation pump, and the heat exchanger
may be a thermoelectric semiconductor module in which substrates
are provided at both sides of P-type and N-type thermoelectric
semiconductors and which is adapted to be increased or decreased in
temperature according to the supply direction of power so as to
heat or cool the fluid.
[0029] The mattress may further include at least one selected from
among a dual fabric and a foam, the dual fabric may include an
upper fabric and a lower fabric vertically spaced apart from each
other with connective yarns interposed therebetween and woven to
have an interior space for installation of the fluid transfer pipe,
and the foam may have a hole for installation of the fluid transfer
pipe.
[0030] The mattress may further include waterproof sheets provided
respectively at upper and lower sides of the fluid transfer
pipe.
Advantageous Effects
[0031] As described above, a mattress with cooling and heating
functions in accordance with the present invention can perform not
only a cooling function under a high temperature environment, such
as in summer, owing to air permeability thereof, but also a thermal
function under a low temperature environment, such as in winter,
via natural convection. Accordingly, the mattress can be compatibly
used all the year round regardless of temperature as a sleeper
simply changes the up and down orientation of the mattress.
Further, the mattress has the effect of providing a pleasant sleep
environment in all temperature conditions.
[0032] In particular, as a result of providing the mattress with an
elastic cooling member and an elastic heating member, the mattress
having an ergonomic design can successfully perform cooling and
heating functions without deterioration in an intrinsic cushioning
function as well as a load dispersing and supporting function
thereof. Additionally, the mattress has the effect of achieving
enhanced safety and market quality.
DESCRIPTION OF DRAWINGS
[0033] FIG. 1 is a partially cut-away perspective view illustrating
the configuration of a mattress with cooling and heating functions
in accordance with a first embodiment of the present invention.
[0034] FIG. 2 is a sectional view illustrating main parts of the
mattress with cooling and heating functions in accordance with the
first embodiment of the present invention.
[0035] FIGS. 3A and 3B are perspective views illustrating a heating
element included in the mattress with cooling and heating functions
in accordance with the first embodiment of the present
invention.
[0036] FIG. 4 is a view illustrating an installed state of the
heating element included in the mattress with cooling and heating
functions in accordance with the first embodiment of the present
invention.
[0037] FIG. 5 is a perspective view illustrating a cooling laminate
member included in the mattress with cooling and heating functions
in accordance with the first embodiment of the present
invention.
[0038] FIG. 6 is a perspective view illustrating a structure for
installation of an air circulating fan included in the mattress
with cooling and heating functions in accordance with the first
embodiment of the present invention.
[0039] FIG. 7 is a view illustrating a first alternative embodiment
of the cooling laminate member included in the mattress with
cooling and heating functions in accordance with the first
embodiment of the present invention.
[0040] FIG. 8 is a view illustrating a second alternative
embodiment of the cooling laminate member included in the mattress
with cooling and heating functions in accordance with the first
embodiment of the present invention.
[0041] FIG. 9 is a view illustrating a first alternative embodiment
of the thermal laminate member included in the mattress with
cooling and heating functions in accordance with the first
embodiment of the present invention.
[0042] FIG. 10 is a view illustrating a first alternative
embodiment of the mattress with cooling and heating functions in
accordance with the first embodiment of the present invention.
[0043] FIG. 11 is a view illustrating a second alternative
embodiment of the mattress with cooling and heating functions in
accordance with the first embodiment of the present invention.
[0044] FIG. 12 is a partially cut-away perspective view
illustrating the configuration of a mattress with cooling and
heating functions in accordance with a second embodiment of the
present invention.
[0045] FIG. 13 is a sectional view illustrating an installed state
of a heat exchanger included in the mattress with cooling and
heating functions in accordance with the second embodiment of the
present invention.
[0046] FIGS. 14A and 14B are views illustrating different
installation examples of a fluid transfer pipe included in the
mattress with cooling and heating functions in accordance with the
second embodiment of the present invention.
MODE FOR INVENTION
[0047] Reference will now be made in detail to the preferred
embodiments of the present invention, examples of which are
illustrated in FIGS. 1 to 14B. Wherever possible, throughout FIGS.
1 to 14B, the same reference numbers will be used throughout the
drawings to refer to the same or like parts. In the respective
drawings, an illustration and a detailed description of
configurations and functions and effects thereof which can be
easily understood from general technology by those skilled in the
art will be described briefly or be omitted, and illustration is
centered on only constituent elements related to the subject matter
of the present invention.
[0048] FIG. 1 is a partially cut-away perspective view illustrating
the configuration of a mattress with cooling and heating functions
in accordance with a first embodiment of the present invention, and
FIG. 2 is a sectional view illustrating main parts of the mattress
with cooling and heating functions in accordance with the first
embodiment of the present invention.
[0049] As illustrated in FIGS. 1 and 2, the mattress with cooling
and heating functions in accordance with the present invention,
which is generally designated by reference numeral 1, includes a
thermal laminate member 13, a heat blocking planar element 14 and a
heating element 15, which are arranged at one side of a cushioning
member 12 accommodated in a cover member 11. On the basis of the
cushioning member 12, one side thereof realizes a heating operation
under a low temperature environment, such as is encountered, e.g.,
in the winter, whereas the other side thereof is provided with a
cooling laminate member 16 having air permeability to realize a
cooling operation under a high temperature environment, such as is
encountered, e.g., in the summer, which results in a pleasant sleep
environment all the year round.
[0050] Although the cushioning member 12 may be freely selected
from among various cushioning materials, such as latex foam,
without a limitation so long as it can exhibit cushioning effects,
in the present embodiment, the cushioning member 12 may include
compressive springs, which are relatively inexpensive and can
exhibit sufficient air permeability. More particularly, a plurality
of compressive springs, which have a slightly smaller length than a
thickness of a conventional mattress, is arranged adjacent to one
another to form the rectangular cushioning member 12.
[0051] The thermal laminate member 13 is disposed on one surface of
the cushioning member 12. The thermal laminate member 13 includes a
hard pad 131, a soft pad 132 and a foam pad 133, which are
sequentially stacked one above another from the interior to the
exterior.
[0052] The hard pad 131 takes the form of a plate having air
permeability and is disposed in contact with one surface of the
cushioning member 12. The hard pad 131 is formed by applying or
coating a polymer resin onto fine textile yarns and hardening the
same. Assuming that the textile yarns are elastic textile yarns
such as synthetic resin yarns, the resultant pad may be harder than
polymer foam which is called sponge.
[0053] The soft pad 132 is disposed in contact with an outer
surface of the hard pad 131 and is formed of a thin non-woven
fabric suitable to achieve sufficient air permeability.
[0054] The foam pad 133 takes the form of a plate and is disposed
in contact with an outer surface of the soft pad 132. The foam pad
133 has a plurality of pores in a pad body, to exhibit excellent
cushioning effects and sufficient air permeability.
[0055] The heat blocking planar element 14 is disposed on an outer
surface of the thermal laminate member 13. The heat blocking planar
element 14 does not allow heat emitted from the heating element 15
to be transferred inward toward the cushioning member 12, but
allows transfer of heat toward a sleeping surface of the mattress 1
on which a sleeper lies. To this end, the heat blocking planar
element 14 may be formed of a fabric which is fabricated by densely
weaving low thermal conductivity textile yarns to effectively
prevent heat from being transferred inward. The fabric used to form
the heat blocking planar element 14 is subjected to flame retardant
finishing to obtain heat resistance characteristics and thus, is
not easily disappeared by a fire.
[0056] FIGS. 3A and 3B are perspective views illustrating the
heating element included in the mattress with cooling and heating
functions in accordance with the first embodiment of the present
invention.
[0057] Referring to FIGS. 3A and 3B, the heating element 15 is
disposed on an outer surface of the heat blocking planar element 14
and serves not only to emit heat upon receiving electric power, but
also to exhibit elasticity to resist external force.
[0058] Although the heating element 15 may be freely selected from
among various configurations so long as it does not hinder a
cushioning function of the mattress, in the present embodiment, a
planar heating element 15a having elasticity may be employed. The
planar heating element 15a is fabricated in such a manner that weft
yarns and warp yarns are woven into a planar fabric and
simultaneously, at least one strand of conductive wire 151 is woven
as a weft yarn or a warp yarn to have a linear shape or a wave
shape. In particular, among the weft yarns and/or the warp yarns
provided to weave the planar heating element, elastic polymer
yarns, such as spandex yarns, are included. As the elastic polymer
yarns are woven to provide the planar heating element, the
resulting planar heating element may exhibit elasticity to resist
external force.
[0059] The conductive wire 151, as illustrated in FIG. 3A, may be
constituted of a heat resistant core yarn 1511, a plurality of
strands of insulated conductive yarns 1512 twisted on an outer
circumference of the core yarn 1511, and a plurality of strands of
textile yarns 1513 wound on the conductive yarns 1512 to form a
coating layer. The conductive wire 151 having the above described
configuration does not exhibit elasticity and therefore, it is
necessary to weave the conductive wire 151 to have a wave shape as
illustrated in FIG. 3A, in order to provide the woven planar
heating element 15a with elasticity.
[0060] Alternatively, as illustrated in FIG. 3B, the conductive
wire 151 is constituted of an elastic core yarn 1514, which is
centrally positioned in the conductive wire 151 and is formed of an
elastic polymer yarn such as a spandex yarn, a plurality of strands
of insulated conductive yarns 1515 wound on the core yarn 1514, and
a sheath layer 1516 elastically formed on an outer circumference of
the conductive yarns 1515. In this case, the sheath layer 1516 is
formed of a plurality of strands of textile yarns wound on the
outer circumference of the conductive yarns 1515. The conductive
wire 151 having the above described configuration exhibits
elasticity and hence, the resultant planar heating element achieves
elasticity although being linearly woven.
[0061] The conductive yarns 1512 or 1515 may be freely selected
from among a variety of linear conductive members (for example,
textile yarns containing a conductive material in the form of nano
particles, plated yarns obtained by plating textile yarns with a
conductive metal, or carbon fiber yarns). Here, the linear
conductive members may serve to conduct electric current according
to the magnitude of voltage or current applied thereto, or may
serve to emit resistance heat. In the present embodiment, the
conductive yarns 1512 or 1515 may be formed of metal yarns having a
diameter of several tens to several hundred micrometers. In an
exemplary embodiment, the conductive wires 1512 or 1515 may be
selected from among metal yarns (commonly, referred to as enamel
yarns) formed by coating stainless steel yarns, titanium yarns, or
copper yarns having a diameter of 10 .mu.m to 50 .mu.m with an
insulating material. In this case, although the strand number of
the conductive yarns may be changed in various manner according to
rated voltage, heating temperature and the like, five to thirty
strands of conductive yarns may be provided.
[0062] An additional pad may be detachably attached to an inner
surface or an outer surface of the planar heating element 15a. The
pad may contain particles formed of at least one selected from
among a far-infrared radiation material, such as ceramic, etc., an
electromagnetic shielding material, such as metal nano particles,
metal oxide particles, etc., an anion generating material, such as
tourmaline, etc., and a sterilizing and antibacterial material,
such as silver nano particles, charcoal, etc.
[0063] The planar heating element 15a is further provided with a
power supply device (not shown) to apply electric current to the
conductive wire 151. The power supply device may be an AC to DC
power supply device that converts AC line voltage to DC voltage, or
may be a rechargeable power supply device.
[0064] FIG. 4 is a view illustrating an installed state of the
heating element included in the mattress with cooling and heating
functions in accordance with the first embodiment of the present
invention. In FIG. 4, illustration of a part of the cover member is
omitted to expose the inner heating element.
[0065] Referring to FIG. 4, the planar heating element 15a is
separable for repair or replacement. To this end, in the present
embodiment, as illustrated in FIG. 4, the planar heating element
15a is separably coupled to the heat blocking planar element 14
located therebelow by means of a separator 152 in the form of a
zipper.
[0066] In addition to the configuration as illustrated in FIG. 4,
another configuration of separably coupling the planar heating
element may include a fixing cover (not shown), which is connected
to an edge portion of the planar heating element so as to be fixed
to the mattress, and a fixing member (not shown), which allows the
planar heating element to be selectively separated from the fixing
cover. In this case, the fixing member may be any one of a Velcro
fastener, a button, a zipper and the like, and the fixing cover may
be formed of a fabric in the form of a mesh net.
[0067] The planar heating element may be woven with antistatic
yarns (not shown) to prevent generation of static electricity. The
antistatic yarns may be selected from among fine metal yarns, metal
plated fibers, fibers containing copper sulfide in the form of nano
particles and the like.
[0068] FIG. 5 is a perspective view illustrating the cooling
laminate member included in the mattress with cooling and heating
functions in accordance with the first embodiment of the present
invention.
[0069] The cooling laminate member 16 is disposed on the other
surface of the cushioning member 12 and is configured to achieve
air permeability. In particular, in the present embodiment, as
illustrated in FIG. 5, the cooling laminate member 16 may include a
permeable pad 161, which is formed by weaving elastic linear
members into a plate shaped net, in order to achieve enhanced
cooling effects. The linear members constituting the permeable pad
161 may be monofilaments 1611, which have elasticity and thus,
exhibit excellent restoration.
[0070] In addition to the permeable pad 161, the cooling laminate
member 16, as illustrated in FIG. 2, further includes a net 162
interposed between an inner surface of the permeable pad 16 and the
cushioning member 12 and a dual fabric 163 provided at an outer
surface of the permeable pad 16. The dual fabric 163 consists of an
upper fabric 1631 and a lower fabric 1632, which are vertically
spaced from each other with connective yarns 1633 interposed
therebetween and are woven to exhibit air permeability.
[0071] The cover member 11 is configured to surround the entire
outer surface of the mattress 1. Although the cover member 11 may
have various shapes so long as it can exhibit sufficient air
permeability, in the present embodiment, the cover member 11 is
formed by sewing a lining fabric 111, a shock absorbing material
112 and a cover fabric 113, which are sequentially arranged from
the interior to the exterior, to define a single planar body, in
order to provide the sleeper with comfort and achieve air
permeability.
[0072] The lining fabric 111 may be a mesh net shaped fabric
installed in contact with both the heating element 15 and the
cooling laminate member 16 so as to surround the entire
mattress.
[0073] The cover fabric 113, as illustrated in FIG. 2, is
additionally disposed on an outer surface of the lining fabric 111
and internally defines a hollow region 1131. The cover fabric 113
further has a plurality of vent holes 1132 to communicate with the
hollow region 1131. The cover fabric 113 takes the form of a dual
fabric consisting of an upper fabric 1136 and a lower fabric 1137,
which are vertically spaced apart from each other with connective
yarns 1135 interposed therebetween and are woven to exhibit air
permeability.
[0074] The shock absorbing material 112 is interposed between the
lining fabric 111 and the cover fabric 113 to perform a shock
absorb function. The shock absorbing material 112 is made of
synthetic cotton or natural cotton.
[0075] The cover member 11 is dividable into two parts for ease in
washing and installation. To separate the cover member 11 into two
parts, the cover member 11 is provided with any separator 114, such
as a zipper, which is located at a lateral position of the
mattress.
[0076] Referring again to FIG. 1, the mattress 1 is further
provided at a lateral portion of the cover member 11 with an air
circulating fan 115. The air circulating fan 115 serves to suction
outside air into the mattress 1, or to discharge the interior air
of the mattress 1 to the outside. This air circulation enhances air
permeability of the mattress 1, allowing the sleeper to be
comfortable during sleep even under a high temperature environment,
such as in summer.
[0077] FIG. 6 is a perspective view illustrating a structure for
installation of the air circulating fan included in the mattress
with cooling and heating functions in accordance with the first
embodiment of the present invention.
[0078] The air circulating fan 115 is installed to an extendable
device 118, which is moved in linkage with contraction and
expansion of the mattress, which ensures implementation of a smooth
blowing operation even if the height of the air circulating fan 115
is changed in a thickness direction according to a cushioning
operation of the mattress. For example, the extendable device 118
includes a cylinder 1181 and a rod 1182 which is vertically moved
by a spring (not shown) elastically installed within the cylinder
1181. When the air circulating fan 115 is installed to the cylinder
1181 of the extendable device 118 having the above described
configuration, only the rod 1182 performs translational movement
along with the cushioning member 112 even if the cushioning member
112 in the form of an array of compressive springs is contracted or
expanded by the weight of the sleeper. Thereby, the cylinder 1181
exhibits no movement relative to the mattress 1 and the air
circulating fan 115 installed to the cylinder 118 remains
stationary and is capable of stably performing a blowing
operation.
[0079] The cover member 11 is provided with a vent hole 116 through
which outside air is introduced into the mattress or the interior
air of the mattress is discharged to the outside. The vent hole 116
is preferably provided with an opening/closing door 1161. The door
1161 is closed in an airtight manner to the vent hole 116 to
prevent leakage of air heated during thermal treatment by the
heating element 15, which enhances thermal treatment via natural
convection.
[0080] Hereinafter, operations of the mattress with cooling and
heating functions in accordance with the first embodiment of the
present invention will be described in brief.
[0081] First, when it is desired to use the mattress 1 with cooling
and heating functions in accordance with the present invention
under a high temperature environment, such as in summer, the
mattress 1 is oriented such that the cooling laminate member 16 is
located upward.
[0082] In a state in which the cooling laminate member 16 is
located upward, the cushioning member 12 in the form of an array of
compressive springs can act to communicate the interior of the
mattress with the outside, thus achieving enhanced air
permeability. Moreover, as the cooling laminate member 16, which is
disposed in contact with the cushioning member 12, is constituted
of the net 162, the permeable pad 161 and the dual fabric 163, all
of which have excellent air permeability, and the cover member 11
is also constituted of the lining fabric 111, the shock absorbing
material 112 and the cover fabric 113, all of which have excellent
air permeability, smooth flow of air is possible.
[0083] In particular, the permeable pad 161 is formed into a plate
by winding monofilaments that may be used as a fishing line due to
high restoration. Thus, the permeable pad 161 may exhibit
remarkably enhanced air permeability as compared to foam that is
widely used in conventional beds as an auxiliary cushioning member,
which provides a comfortable sleep environment under a high
temperature environment, such as in summer.
[0084] On the contrary, when it is desired to use the mattress 1
with cooling and heating functions in accordance with the present
invention under a low temperature environment, such as in winter,
the mattress 1 is oriented such that the heating element 15 is
located upward.
[0085] In a state in which the heating element 15 is located
upward, if the user operates the power supply device to supply
electric power to the conductive wire 151 as a heating wire of the
planar heating element 15a, a heating operation is initiated. In
this case, since the heat blocking planar element 14 is provided at
a lower surface of the planar heating element 15a, it is possible
to prevent heat generated by the planar heating element 15a from
being transferred to the cushioning member 12 and to guide the heat
to be transferred to the cover member 11, on which the sleeper
lies, via natural convection, which has the effect of achieving
thermal effects.
[0086] The surface of the heat blocking planar element 14 is
subjected to flame retardant finishing and therefore, it is
possible to prevent deterioration of the mattress or generation of
a fire even if the planar heating element overheats.
[0087] FIG. 7 is a view illustrating a first alternative embodiment
of the cooling laminate member included in the mattress with
cooling and heating functions in accordance with the first
embodiment of the present invention.
[0088] Referring to FIG. 7, the cooling laminate member 16 may be
formed of foam in such a manner that pores 162 having a diameter of
1 mm to 30 mm is formed in a foam body 161. In this case,
functional particles 163 performing beneficial effects may be
contained in the pores 162, or a polymer resin mixed with the
functional particles 163 may be coated and hardened on the foam
body.
[0089] Here, the functional particles mean a far-infrared radiation
material, such as ceramic, etc., an electromagnetic shielding
material, such as metal nano particles, metal oxide particles,
etc., an anion generating material, such as tourmaline, etc., and a
sterilizing and antibacterial material, such as silver nano
particles, charcoal, etc.
[0090] Although the foam illustrated in FIG. 7 may also serve as
the thermal laminate member owing to cushioning effects thereof,
the foam may be more effectively used as the cooling laminate
member because the pores thereof have a diameter in the range of 1
mm to 30 mm suitable to achieve excellent air permeability.
[0091] FIG. 8 is a view illustrating a second alternative
embodiment of the cooling laminate member included in the mattress
with cooling and heating functions in accordance with the first
embodiment of the present invention. More particularly, FIG. 8 is a
sectional view illustrating main parts in a simplified manner.
[0092] Referring to FIG. 8, the cooling laminate member 16 may take
the form of a dual fabric consisting of an upper fabric 164, a
lower fabric 165 downwardly spaced apart from the upper fabric 164
with a space interposed therebetween, and connective yarns 166
interposed in the space to connect the upper fabric 164 and the
lower fabric 165 to each other. Also, weft yarns 167, warp yarns
168 and the connective yarns 166, which constitute the dual fabric,
may be elastic textile yarns or metal yarns.
[0093] Although the elastic dual fabric may be used as the thermal
laminate member owing to cushioning effects thereof, it may be more
effectively used as the cooling laminate member because the upper
fabric 164 and the lower fabric 165 are formed of permeable fabrics
and are arranged with the space therebetween so as to exhibit
excellent air permeability.
[0094] FIG. 9 is a view illustrating a first alternative embodiment
of the thermal laminate member included in the mattress with
cooling and heating functions in accordance with the first
embodiment of the present invention. More particularly, FIG. 9 is a
sectional view illustrating main parts in a simplified manner.
[0095] Referring to FIG. 9, although the thermal laminate member 13
takes the form of a dual fabric similar to the cooling laminate
member 16 in accordance with the above described second alternative
embodiment, additionally, the thermal laminate member 13 includes a
foam layer 137 in a space between an upper fabric 135 and a lower
fabric 136. In this case, the foam layer 137 is formed of
polyurethane based foam resin having relatively excellent cushion
characteristics.
[0096] Although the thermal laminate member 13 having the above
described configuration may be used as the cooling laminate member
in terms of the fact that all of the upper fabric 135, the lower
fabric 136 and the foam layer 137 perform cushioning effects, due
to the presence of the foam layer 137 provided in the space of the
dual fabric, the thermal laminate member 13 may be more effectively
used as the thermal laminate member because it exhibits less air
permeability and greater heat retention efficiency than the dual
fabric illustrated in FIG. 8.
[0097] FIG. 10 is a view illustrating a first alternative
embodiment of the mattress with cooling and heating functions in
accordance with the first embodiment of the present invention. In
FIG. 10, only the thermal laminate member and the heating element,
which represent major differences, are illustrated.
[0098] Referring to FIG. 10, the mattress 1 with cooling and
heating functions in accordance with the first alternative
embodiment includes the cushioning member (not shown) performing a
cushioning operation, the thermal laminate member (not shown), the
heating element 15, the cooling laminate member (not shown) and the
cover member (not shown). The thermal laminate member 13 includes a
permeable pad 138 formed by weaving elastic linear members into a
plate shaped net, and the heating element 15 includes a heating
conductive wire 155, which functions to generate heat upon
receiving electric power and is disposed in the permeable pad 138
so as to exhibit elasticity to resist external force.
[0099] The heating conductive wire 155 may have the same
configuration as described with relation to FIG. 3A or FIG. 3B.
[0100] In the mattress with cooling and heating functions in
accordance with the first alternative embodiment, instead of
providing the planar heating element, the permeable pad 138, which
constitutes the thermal laminate member 13, functions as a heating
element by means of the heating conductive wire 155 embedded
therein, which can realize the mattress 1 with cooling and heating
functions in a more simplified manner.
[0101] FIG. 11 is a view illustrating a second alternative
embodiment of the mattress with cooling and heating functions in
accordance with the first embodiment of the present invention. In
FIG. 11, only the thermal laminate member and the heating element,
which represent major differences, are illustrated.
[0102] Referring to FIG. 11, the mattress 1 with cooling and
heating functions in accordance with the second alternative
embodiment includes the cushioning member (not shown) performing a
cushion operation, the thermal laminate member (not shown), the
heating element 15, the cooling laminate member (not shown), and
the cover member (not shown). The thermal laminate member 13
includes a dual fabric 139, and the heating element 15 includes a
heating conductive wire 156 which functions to emit heat upon
receiving electric power and is disposed in the dual fabric 139 so
as to exhibit elasticity to resist elastic force.
[0103] The dual fabric 139 includes a foam layer 139a provided in a
space thereof for heat retention. The heating conductive wire 156
may be disposed on an upper fabric 1391 or a lower fabric 1392 of
the dual fabric 139, or may be woven in the space along with
connective yarns 1393. FIG. 11 illustrates an example in which the
heating conductive wire 139 is disposed on the upper fabric 1391
close to the sleeping surface of the mattress.
[0104] FIG. 12 is a partially cut-away perspective view
illustrating the configuration of a mattress with cooling and
heating functions in accordance with a second embodiment of the
present invention. Illustration with respect to constituent
elements (e.g., the cushioning member) similar to the above
described first embodiment is omitted.
[0105] As illustrated in FIG. 12, the mattress with cooling and
heating functions in accordance with the second embodiment of the
present invention, which is generally designated by reference
numeral 2, includes the cushioning member (not shown), the laminate
member (not shown), a fluid storage container 22, a fluid transfer
pipe 23, a fluid circulator 24, a heat exchanger 25 and a cover
member 21. The mattress 2 is configured to perform a heating
operation under a low temperature environment, such as in winter,
and a cooling operation under a high temperature environment, such
as in summer, which can provide the sleeper with comfortable
sleep.
[0106] Similar to the above described first embodiment, the
cushioning member (not shown), which exhibits cushioning effects,
is made of a compressive spring suitable to reduce cost and achieve
sufficient air permeability.
[0107] The laminate member (not shown) is disposed on one surface
of the cushioning member and includes a permeable pad formed by
weaving elastic linear members into a plate shaped net to enhance
cooling properties (in the same manner as the first
embodiment).
[0108] The fluid storage container 22 is a storage container in
which fluid such as water is received. An outlet port and an inlet
port of the fluid transfer pipe 23 which will be described
hereinafter are connected to the fluid storage container 22.
[0109] The fluid transfer pipe 23 provides a flow path of heating
or cooling fluid and is configured in such a manner that a hose
formed of a material having excellent heat exchange characteristics
is arranged in a zigzag pattern on an outer surface of the laminate
member.
[0110] The fluid circulator 24 serves to circulate the fluid
through the fluid transfer pipe 23 and may be a circulation
pump.
[0111] FIG. 13 is a sectional view illustrating an installed state
of the heat exchanger included in the mattress with cooling and
heating functions in accordance with the second embodiment of the
present invention.
[0112] The heat exchanger 25 serves to heat or cool the fluid
moving through the fluid transfer pipe 23. The heat exchanger 25
takes the form of a conventional thermoelectric semiconductor
module in which substrates 252 and 253 are provided at both sides
of P-type and N-type thermoelectric semiconductors 251 and adapted
to be increased or decreased in temperature according to the supply
direction of power so as to heat or cool the fluid.
[0113] The thermoelectric semiconductor module serving as the heat
exchanger 25, as illustrated in FIG. 13, is installed in such a
manner that the substrate 252 is attached to a wall surface of the
fluid storage container 22 to heat or cool the fluid via heat
exchange according to the supply direction of power. In FIG. 13,
reference numeral 254 represents a packing for air tightness, and
cooling and radiating fan (not shown) may further be provided to
enhance efficiency of the thermoelectric semiconductor module.
[0114] The cover member 21 is configured to surround the entire
mattress 2. Similar to the above described first embodiment, the
cover member 21 may be formed by integrally sewing a lining fabric
(not shown), a shock absorbing material (not shown) and a cover
fabric (not shown), which are sequentially arranged from the
interior to the exterior.
[0115] The mattress 2 with cooling and heating functions in
accordance with the second embodiment of the present invention
further includes an input unit (not shown) to input the
temperature, flow rate and movement time of the fluid moving
through the fluid transfer pipe 23, a control unit (not shown) to
control the fluid circulator 24 and the heat exchanger 25 in
response to an input signal from the input unit (not shown), a
temperature sensor (not shown) to sense the temperature of fluid
within the fluid transfer pipe 23 so as to apply the sensed signal
to the control unit, and a humidity sensor (not shown) to sense the
interior humidity of the mattress 2 so as to apply the sensed
signal to the control unit.
[0116] A waterproof sheet 26 is provided at an upper surface and/or
a lower surface of the fluid transfer pipe 23, to prevent the fluid
transfer pipe 23 from being damaged by condensed water.
[0117] FIGS. 14A and 14B are views illustrating different
installation examples of the fluid transfer pipe included in the
mattress with cooling and heating functions in accordance with the
second embodiment of the present invention.
[0118] As illustrated in FIG. 14A, in one example to assist in
installing and fixing the fluid transfer pipe 23, there may further
be provided a dual fabric 28 consisting of an upper fabric 281 and
a lower fabric 282, which are vertically spaced apart from each
other with connective yarns 283 interposed therebetween and are
woven to define a space therebetween.
[0119] As illustrated in FIG. 14B, in another example to assist in
installing and fixing the fluid transfer pipe 23, there may further
be provided a foam body 29 having an installation hole 29a.
[0120] When the fluid transfer pipe 23 is secured in the same
manner as illustrated in FIGS. 14A and 14B, the fluid transfer pipe
23 may be not only more stably secured, but also may enhance
cooling and heating efficiencies because the dual fabric 28 or the
foam body 29 serve to retain heat or coldness.
[0121] It will be apparent to those skilled in the art that various
modifications and variations can be made in the present invention
without departing from the spirit or scope of the invention. Thus,
it is intended that the present invention cover the modifications
and variations of this invention provided they come within the
scope of the appended claims and their equivalents.
* * * * *