U.S. patent application number 12/523206 was filed with the patent office on 2010-02-11 for heat conduction unit with improved laminar.
Invention is credited to Chan Bong Lee.
Application Number | 20100032145 12/523206 |
Document ID | / |
Family ID | 38503844 |
Filed Date | 2010-02-11 |
United States Patent
Application |
20100032145 |
Kind Code |
A1 |
Lee; Chan Bong |
February 11, 2010 |
HEAT CONDUCTION UNIT WITH IMPROVED LAMINAR
Abstract
A heat conduction unit having an improved laminar is provided.
The heat conduction unit of the present invention includes a pair
of exhaust and intake layers crossing each other for exchanging
heat between exhaust and intake airflows; and a laminar interposed
between the exhaust and intake layers and having a having a fiber
synthetic fabric layer with a high water absorbancy and heat
conductivity. The fiber synthetic fabric layer is made by densely
weaving a microfiber in the form of a fabric, the fabric being
weaved by adding micro metal fiber, by adding microfiber plated
with metal, or by adding at least ones of micro copper molecules,
aluminum molecules, carbon black molecules, carbon nano tube
molecules, titanium dioxide (TiO2) molecules, and nano-silver
molecules, to a raw material resin of the microfiber.
Inventors: |
Lee; Chan Bong;
(Gyeonggi-do, KR) |
Correspondence
Address: |
IPLA P.A.
3550 WILSHIRE BLVD., 17TH FLOOR
LOS ANGELES
CA
90010
US
|
Family ID: |
38503844 |
Appl. No.: |
12/523206 |
Filed: |
January 15, 2008 |
PCT Filed: |
January 15, 2008 |
PCT NO: |
PCT/KR08/00247 |
371 Date: |
July 15, 2009 |
Current U.S.
Class: |
165/133 |
Current CPC
Class: |
F24F 3/147 20130101;
F24F 12/006 20130101; Y02B 30/56 20130101; F28F 21/065 20130101;
Y02B 30/563 20130101; F28D 9/0062 20130101; F28D 21/0015
20130101 |
Class at
Publication: |
165/133 |
International
Class: |
F28F 13/18 20060101
F28F013/18 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 16, 2007 |
KR |
10-2007-0004827 |
Claims
1. A heat conduction unit comprising: a pair of exhaust and intake
layers crossing each other for exchanging heat between exhaust and
intake airflows; and a laminar interposed between the exhaust and
intake layers and having a having a fiber synthetic fabric layer
with a high water absorbancy and heat conductivity.
2. The heat conduction unit of claim 1, wherein the fiber synthetic
fabric layer is made by densely weaving a microfiber in the form of
a fabric, the fabric being weaved by adding micro metal fiber, by
adding microfiber plated with metal, or by adding at least ones of
micro copper molecules, aluminum molecules, carbon black molecules,
carbon nano tube molecules, titanium dioxide (TiO2) molecules, and
nano-silver molecules, to a raw material resin of the
microfiber.
3. A heat conduction unit having a pair of exhaust and intake
layers crossing each other for exchanging heat between exhaust and
intake airflows and laminar interposed between the exhaust and
intake layers, wherein the laminar comprising: a fiber synthetic
fabric layer having a high water absorbancy and high heat
conductivity; and at least one higher polymer resin layer laminated
or coated on at least one surface of the fiber synthetic fabric
layer.
4. The heat conduction unit of claim 3, wherein the laminar is
composed by forming the fiber synthetic fabric layer on one or both
surfaces of the high polymer resin layer or by forming the high
polymer resin layer on one or both surface of the fiber synthetic
fabric layer.
5. The heat conduction unit of claim 4, wherein the high polymer
resin layer is composed of at least one of temperature sensitive
high polymer resin layer of which micro pores and channels increase
in proportion to the temperature, high moisture permeable high
polymer resin layer, high moisture permeable and air shield ability
polymer resin layer, and high thermal conductive high polymer resin
layer.
6. The heat conduction unit of claim 5, wherein the high polymer
resin layer is made of at least one of polypropylene (PP),
polyethylene (PE), polyester, polyvinyl chloride (PVC),
polyurethane (PU), polyimide, polyamide, polysulfone, polysiloxane,
polyethyleneterephthalate (PET), nylon, and Teflon.
7. The heat conduction unit of claim 5, wherein the high polymer
resin layer is formed by doping at least ones of micro copper
molecules, aluminum molecules, carbon black molecules, carbon nano
tube molecules, titanium dioxide (TiO2) molecules, and nano-silver
molecules, to a raw material resin in the laminating or coating
process.
8. A heat conduction unit comprising: a pair of exhaust and intake
layers crossing each other for exchanging heat between exhaust and
intake airflows; and a laminar interposed between the exhaust and
intake layers and having a having a high polymer resin layer with a
high moisture permeability, wherein the laminar has flat surfaces
or at least one furrowed surface.
9. The heat conduction unit of claim 8, wherein the high polymer
resin layer comprises at least one of temperature sensitive high
polymer resin layer of which micro pores and channels increase in
proportion to the temperature, high moisture permeable high polymer
resin layer, high moisture permeable and air shield ability polymer
resin layer, and high thermal conductive high polymer resin
layer.
10. The heat conduction unit of claim 9, wherein the high polymer
resin layer is made of at least one of polypropylene (PP),
polyethylene (PE), polyester, polyvinyl chloride (PVC),
polyurethane (PU), polyimide, polyamide, polysulfone, polysiloxane,
polyethyleneterephthalate (PET), nylon, and Teflon.
11. The heat conduction unit of claim 9, wherein the high polymer
resin layer is formed by doping at least ones of micro copper
molecules, aluminum molecules, carbon black molecules, carbon nano
tube molecules, titanium dioxide (TiO2) molecules, and nano-silver
molecules, to a raw material resin in the laminating or coating
process.
Description
TECHNICAL FIELD
[0001] The present invention relates to a heat conduction unit that
is capable of improving thermal conductivity and performance
reliability.
BACKGROUND ART
[0002] A heat exchanger is a device for preventing the indoor
temperature from changing abruptly and maintaining the indoor
humidity using sensible and latent heat exchanges during air
ventilation. Such heat exchanger is provided with exhaust and
intake passages crossing each other, exhaust and intake fans for
generating the exhaust and intake airflows through the respective
exhaust and intake passages, and a heat conduction unit arranged at
the crossing part of the exhaust and intake passage for heat and
moisture exchanges between the exhaust and intake airflows.
[0003] Korean Patent Laid-Open Publication No. 2003-004007
discloses a heat conduction element. The conventional heat
conduction element is provided with basic components each of which
is formed by laminating a laminar having a flat shape and a spacer
having a corrugated section of sinusoidal shape.
[0004] The spacers are joined with the laminars interposed
therebetween with their direction of corrugation orthogonal to each
other alternately so as to form exhaust and intake airflow layers.
With this structure, if the exhaust and intake fans are activated,
the exhaust airflow is guided out of the room through the exhaust
passage layer and the intake airflow is guided into the room
through the intake passage layer, such that the exhaust and intake
airflows exchanges heats and moisture via the laminars.
[0005] Accordingly, the laminar should be fabricated so as to have
high conductivity for efficiently exchanging the heat between the
exhaust and intake airflows while protecting mixture of the exhaust
and intake airflows, and high moisture permeability for efficient
moisture exchange between the exhaust and intake airflows.
[0006] In a case of cellulose laminar fabrication, a cellulose
fiber is processed in the form of a paper through beating and
pressing processes. In order to improve the adhesive force between
the fibers thermosetting resin such as melamine resin, urea resin,
and epoxidised polyamide are applied as a reinforcement additive.
In this case, however, porosity of the laminar is dramatically
reduced through the beating/pressing process and reinforcement
process. In order to improve the moisture permeability of the
laminar, an alkali metal such as lithium chloride is added through
an impregnation process after the reinforcement process.
[0007] Accordingly, the conventional laminar fabrication is carried
out through complicated additional processes including
reinforcement process and absorbent agent application process in
addition to the basic shaping process, and these additional
processes cause a environment contamination problems due to the
toxicity of the additive materials.
[0008] Also, the conventional laminar is likely to have a low
porosity due to the use of large amount of reinforcement agent,
even though it may be compensated by the absorbance agent, which
restricts the efficient moisture exchange performance of the
laminar. Particularly, the polypropylene (PP) laminar made of high
polymer film material is inferior to the cellulose laminar in
moisture exchange efficiency.
[0009] In a case of cellulose laminar, the impregnated absorbent
likely to be partially removed from the laminar while using the
heat conductive unit equipped with the laminar so as to contaminate
the indoor atmosphere. Also, the difference of thermal expansion
rate between the cellulose and reinforcement material deteriorate
the vulnerable water resistance of the laminar, thereby being
fragile in a high temperature and high moisturized environment,
resulting in degrading the product reliability.
[0010] In order to solve these problems, a high density fabric type
laminar has been proposed. However, this conventional laminar has a
problem in that the exhaust and intake airflows are likely to be
mixed due to its high air permeability.
DISCLOSURE OF INVENTION
Technical Problem
[0011] The present invention has been made in an effort to solve
the above problems, and the present invention provides a heat
conduction unit having an improved laminar that is capable of
improving the moisture permeability as well as heat conductivity
and additionally securing durability and antibacterial effect that
are not expected in the conventional humidity-exchangeable laminar
products made of paper material.
[0012] Also, the present invention provides a heat conduction unit
that is capable of being adaptive to various usage environments by
implementing a laminar composed at least one of fiber synthetic
fabric layer and a high polymer resin layer in a single- or
multi-layered form and selectively applying the laminar with an
inventive spacer or a conventional spacer.
Technical Solution
[0013] In one aspect of the present invention, a heat conduction
unit of the present invention includes a pair of exhaust and intake
layers crossing each other for exchanging heat between exhaust and
intake airflows; and a laminar interposed between the exhaust and
intake layers and having a having a fiber synthetic fabric layer
with a high water absorbancy and heat conductivity.
[0014] Preferably, the fiber synthetic fabric layer is made by
densely weaving a microfiber in the form of a fabric, the fabric
being weaved by adding micro metal fiber, by adding microfiber
plated with metal, or by adding at least ones of micro copper
molecules, aluminum molecules, carbon black molecules, carbon nano
tube molecules, titanium dioxide (TiO2) molecules, and nano-silver
molecules, to a raw material resin of the microfiber.
[0015] In accordance with another aspect of the present invention,
a heat conduction unit includes a pair of exhaust and intake layers
crossing each other for exchanging heat between exhaust and intake
airflows and laminar interposed between the exhaust and intake
layers, where the laminar includes a fiber synthetic fabric layer
having a high water absorbancy and high heat conductivity; and at
least one higher polymer resin layer laminated or coated on at
least one surface of the fiber synthetic fabric layer.
[0016] Preferably, the laminar is composed by forming the fiber
synthetic fabric layer on one or both surfaces of the high polymer
resin layer or by forming the high polymer resin layer on one or
both surface of the fiber synthetic fabric layer.
[0017] Preferably, the high polymer resin layer is composed of at
least one of temperature sensitive high polymer resin layer of
which micro pores and channels increase in proportion to the
temperature, high moisture permeable high polymer resin layer, high
moisture permeable and air shield ability polymer resin layer, and
high thermal conductive high polymer resin layer.
[0018] Preferably, the high polymer resin layer is made of at least
one of polypropylene (PP), polyethylene (PE), polyester, polyvinyl
chloride (PVC), polyurethane (PU), polyimide, polyamide,
polysulfone, polysiloxane, polyethyleneterephthalate (PET), nylon,
and Teflon.
[0019] Preferably, the high polymer resin layer is formed by doping
at least ones of micro copper molecules, aluminum molecules, carbon
black molecules, carbon nano tube molecules, titanium dioxide
(TiO2) molecules, and nano-silver molecules, to a raw material
resin in the laminating or coating process.
[0020] In accordance with another aspect of the present invention,
a heat conduction unit includes a pair of exhaust and intake layers
crossing each other for exchanging heat between exhaust and intake
airflows; and a laminar interposed between the exhaust and intake
layers and having a having a high polymer resin layer with a high
moisture permeability, wherein the laminar has flat surfaces or at
least one furrowed surface.
[0021] Preferably, the high polymer resin layer includes at least
one of temperature sensitive high polymer resin layer of which
micro pores and channels increase in proportion to the temperature,
high moisture permeable high polymer resin layer, high moisture
permeable and air shield ability polymer resin layer, and high
thermal conductive high polymer resin layer.
[0022] Preferably, the high polymer resin layer is made of at least
one of polypropylene (PP), polyethylene (PE), polyester, polyvinyl
chloride (PVC), polyurethane (PU), polyimide, polyamide,
polysulfone, polysiloxane, polyethyleneterephthalate (PET), nylon,
and Teflon.
[0023] Preferably, the high polymer resin layer is formed by doping
at least ones of micro copper molecules, aluminum molecules, carbon
black molecules, carbon nano tube molecules, titanium dioxide
(TiO2) molecules, and nano-silver molecules, to a raw material
resin in the laminating or coating process.
Advantageous Effects
[0024] The heat conduction unit of the present invention is
manufactured using a laminar implemented with a composite material
of a high water absorbent fabric and a coated resin having a high
moisture permeability and air shield ability, thereby improving the
heat and moisture exchange performance with enhanced moisture
permeability and water repellent effect while avoiding the
contamination controversy caused by the reinforcement and absorbent
materials used in the fabrication of conventional heat conductive
unit.
[0025] Also, the heat conduction unit of the present invention is
advantageous in product reliability and durability since the
laminar of the heat conduction unit has improved water resistance
even in the high temperature and high moisturized environment and
improved air shield ability in comparison with the cellulose or
fabric material to protect the mixture of the exhaust and intake
airflows.
[0026] Also, the heat conduction unit of the present invention is
advantageous in heat conductivity improved by applying micro fiber
coated with metal fiber or metal itself such as silver fiber to the
fiber fabric layer of the laminar. The addition of micro molecules
such as nano-silver, carbon black, and carbon nano-tube to the high
polymer molecules of the micro fiber fabric further improves the
heat conductivity and provides antibacterial and bactericidal
effects.
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The above and other objects, features and advantages of the
present invention will be more apparent from the following detailed
description in conjunction with the accompanying drawings, in
which:
[0028] FIG. 1 is a top plan view illustrating a heat exchanger
according to an exemplary embodiment of the present invention;
[0029] FIG. 2 is a perspective view illustrating the heat
conduction unit of FIG. 1;
[0030] FIG. 3 is a perspective view illustrating a laminar of a
heat conduction unit according to an exemplary embodiment of the
present invention; and
[0031] FIG. 4 is a perspective view illustrating a laminar of a
heat conduction unit according to another exemplary embodiment of
the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION
[0032] Exemplary embodiments of the present invention are described
with reference to the accompanying drawings in detail. The same
reference numbers are used throughout the drawings to refer to the
same or like parts. Detailed descriptions of well-known functions
and structures incorporated herein may be omitted to avoid
obscuring the subject matter of the present invention.
[0033] FIG. 1 is a top plan view illustrating a heat exchanger
according to an exemplary embodiment of the present invention.
Referring to FIG. 1, the heat exchanger 5 includes a housing 10
having a box shape and a pair of exhaust and intake passages 16 and
17 for guiding exhaust and intake airflows 14 and 15,
respectively.
[0034] The heat exchanger 5 further includes a heat conduction unit
13 arranged at a portion at which the exhaust and intake passages
16 and 17 are crossing each other for exchanging heats between the
exhaust and intake airflows 14 and 15, and a pair of exhaust and
intake fans 12 and 11.
[0035] If the exhaust and intake fans 12 and 11 are activated, the
indoor air is forced so as to be guided out through the exhaust
passage 16, and the outdoor air is forced so as to be guided into
the room through the intake passage 17. The exhaust and intake
airflows 14 and 15 exchanges heats while crossing at the heat
conduction unit 13, thereby reducing heat loss and, in turn,
protecting abrupt change of the indoor temperature.
[0036] FIG. 2 is a perspective view illustrating the heat
conduction unit of FIG. 1. As shown in FIG. 2, the heat conduction
unit 13 includes basic components each of which is formed by
laminating a laminar 24 having a flat shape and a spacer 23 having
a corrugated section of sinusoidal shape. The spacers are joined
with the laminars interposed therebetween with their direction of
corrugation orthogonal to each other alternately so as to form at
least one exhaust layer 21 communicating with the exhaust passage
16 and at least one intake layer 22 communicating with the intake
passage 17.
[0037] Accordingly, the exhaust and intake airflows 14 and 15
exchanging the heats via the laminar 24 while passing the
respective exhaust and intake layers 21 and 22.
[0038] FIG. 3 is a perspective view illustrating a laminar of a
heat conduction unit according to an exemplary embodiment of the
present invention. As shown in FIG. 3, the laminar 24 of the heat
conduction unit 13 includes a high polymer resin layer 31 having
high moisture permeability and air shield ability and a pair of
fiber synthetic fabric layer 33a and 33b laminated on opposite
surfaces of the high polymer resin layer 31.
[0039] The outdoor air contained moisture is forced to flow into
the inside through the intake passage 17 by the intake fan 11. The
moistures contained in the intake airflow 15 is quickly absorbed by
the fiber synthetic fabric layer 33a while passing the exhaust
layer 21 of the heat conduction unit 13 and then transferred to the
fiber synthetic fabric layer 33b via the high polymer resin layer
31. The moisture transferred to the fiber synthetic fabric layer
33b is taken by the exhaust airflow 14.
[0040] The high polymer resin layer 31 is characterized that one
surface of which temperature is higher than that of the other
surface has larger micro pores and micro channels than the other
surface.
[0041] That is, the micro pores and channels on the surface of the
high polymer resin layer 31 increase in proportion to the
temperature in size such that the moisture can be transferred well
from the high temperature airflow to the low temperature
airflow.
[0042] The high polymer resin layer 31 is made of a temperature
sensitive high polymer resin such that its micro pores and channels
increase in proportion to the temperature in size, and the fiber
synthetic fabric layers 33a and 33b are made by densely weaving a
microfiber so as to have high water absorbancy and high moisture
permeability.
[0043] FIG. 4 is a perspective view illustrating a laminar of a
heat conduction unit according to another exemplary embodiment of
the present invention. Unlike the laminar of FIG. 3, the laminar
according to this embodiment is composed of a pair of high polymer
resin layer 31a and 31b and a fiber synthetic fabric layer 33
interposed between the high polymer resin layer 31a and 31b.
[0044] The laminar 24 according to this embodiment is more
effective than the laminar depicted in FIG. 3 in an environment
less humid and requiring high air shield ability. This is because
the high polymer resin layer 31a and 31b is superior to the fiber
synthetic fabric layer 33 in moisture permeability and air shield
ability.
[0045] Although the laminar 24 is composed of three layers in the
embodiments depicted in FIGS. 3 and 4, it can be implemented with a
signal high polymer resin layer and a single fiber synthetic fabric
layer as a dual-layered laminar or implemented with one of the high
polymer layer and the fiber synthetic fabric layer as a
single-layered laminar.
[0046] In the case that the laminar 24 is implemented with a single
high polymer resin layer having high moisture permeability, the
laminar 24 is made to have furrows formed in a comb-pattern,
pyramid-pattern, sinusoidal pattern, etc. for enlarging the surface
area.
[0047] The high polymer resin layer 31 is made of material such as
Teflon resin, urethane resin, and nylon resin, and may include a
membrane made of polyamide or polysulfone. That is, the high
polymer resin is made of at least one of polypropylene (PP),
polyethylene (PE), polyester, polyvinyl chloride (PVC),
polyurethane (PU), polyimide, polyamide, polysulfone, polysiloxane,
polyethyleneterephthalate (PET), nylon, and Teflon.
[0048] The high polymer resin layer 31 is made of at least one of
temperature sensitive high polymer resin layer of which micro pores
and channels increase in proportion to the temperature, high
moisture permeable high polymer resin layer, high moisture
permeable and air shield ability polymer resin layer, and high
thermal conductive high polymer resin layer.
[0049] The high polymer resin layer 31 can be implemented by
coating a material or laminating a thin film made of the material.
The film or coated layer is made by diffusing at least one of micro
copper molecules, aluminum molecules, carbon black molecules,
carbon nano tube molecules, titanium dioxide (TiO2) molecules, and
nano-silver molecules, to the raw material resin in the laminating
or coating process.
[0050] In FIG. 4, the fiber synthetic fabric layer 33 of the
laminar can be made by adding metal fiber 41 or metal-coated
microfiber in a weaving process for improving the heat conductivity
of the fiber synthetic fabric layer 33.
[0051] The advantageous effects of the metal fiber 41 can be
replaced by diffusing at least one kind of micro copper molecules,
aluminum molecules, carbon black molecules, carbon nano tube
molecules, titanium dioxide (TiO2) molecules, and nano-silver
molecules, to the micro fiber polymer. For example, the application
of the nano silver molecules is proved that it improves the heat
conductivity of the fabric layer and provides antibacterial and
bactericidal effects.
[0052] Although exemplary embodiments of the present invention have
been described in detail hereinabove, it should be clearly
understood that many variations and/or modifications of the basic
inventive concepts herein taught which may appear to those skilled
in the present art will still fall within the spirit and scope of
the present invention, as defined in the appended claims.
INDUSTRIAL APPLICABILITY
[0053] The heat conduction unit of the present invention can be
applied to various heat exchangers.
* * * * *