KR101767165B1 - Wearable thermoelectric device - Google Patents

Wearable thermoelectric device Download PDF

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Publication number
KR101767165B1
KR101767165B1 KR1020150148835A KR20150148835A KR101767165B1 KR 101767165 B1 KR101767165 B1 KR 101767165B1 KR 1020150148835 A KR1020150148835 A KR 1020150148835A KR 20150148835 A KR20150148835 A KR 20150148835A KR 101767165 B1 KR101767165 B1 KR 101767165B1
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South Korea
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facing surface
human body
air pocket
body facing
forming member
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KR1020150148835A
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Korean (ko)
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KR20170048657A (en
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송재용
박선화
박현민
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한국표준과학연구원
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    • H01L35/32—
    • H01L35/02—
    • H01L35/30—
    • H01L35/34—

Abstract

The present invention relates to a wearable thermoelectric device, and more particularly, to a thermoelectric module for generating thermoelectric power using a temperature difference between a human body facing surface and an external facing surface. And an air pocket forming member provided on at least a part of the human body facing surface and forming an air pocket near the human body facing surface so as to prevent loss of thermal energy transmitted from the human body to the thermoelectric module .

Description

[0001] Wearable thermoelectric device [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a wearable thermoelectric device, and more particularly, to a wearable thermoelectric device capable of generating thermoelectric power using heat energy of a human body.

The thermoelectric generation using the Seebeck effect is a power generation using the principle of a thermoelectric element (thermoelectric semiconductor) that generates a thermoelectric power when a temperature difference is given to both ends of the material. Thermoelectric generators that use this Jebeck effect have very high stability and environmental friendliness because they do not have dynamic parts and do not require any fuel and convert heat directly into electricity in the material.

Conventionally, there has been an attempt to convert the thermal energy of the human body into electric energy using such a thermoelectric device. Such conventional thermoelectric devices have been developed in forms that can be worn on the human body, such as clothes, shoes, hats, belts, socks, gloves, masks, and watches.

However, such a conventional thermoelectric device has a problem that the heat energy generated from the human body is easily released to the outside air during the process of being transferred to the thermoelectric device, thereby lowering the power generation efficiency. In addition, it is necessary to make close contact with the human body, so that the maximum thermal energy can be converted into electric energy from the body temperature.

An object of the present invention is to provide a thermoelectric module capable of preventing the loss of thermal energy transferred from a human body to the thermoelectric module by forming an air pocket near a human body facing surface of the thermoelectric module, And a thermoelectric device. However, these problems are illustrative, and thus the scope of the present invention is not limited thereto.

According to an aspect of the present invention, there is provided a wearable thermoelectric module including: a thermoelectric module for generating thermoelectric power using a temperature difference between a body facing surface and an external facing surface; And an air pocket forming member provided on at least a part of the human body facing surface and forming an air pocket near the human body facing surface so as to prevent loss of thermal energy transmitted from the human body to the thermoelectric module .

Further, according to the present invention, the air pocket forming member may be a plurality of linear objects capable of holding air around.

Further, according to the present invention, the linear object may be formed at a rim portion of the human body-facing surface so as to surround an intermediate portion of the human body-facing surface.

According to the present invention, the linear object further includes: a first hair part formed at least in a part of an intermediate part of the human body facing surface and formed in a shape protruding so as to have a first length from the human body facing surface; And a second hair portion formed at a rim portion of the human body facing surface and formed in a shape protruding from the human body facing surface to have a second length longer than the first length.

According to the present invention, the linear object further includes: a first hair portion formed on at least a portion of an intermediate portion of the human body facing surface and having a first density; And a second hair portion formed at a rim portion of the human body facing surface and having a second density higher than the first density.

Further, according to the present invention, the above-mentioned line-shaped object comprises: a first hair portion formed on at least a part of an intermediate portion of the human body facing surface and having a first thickness; And a second hair part formed at a rim of the human body facing surface and having a second thickness that is thicker than the first thickness.

According to another aspect of the present invention, there is provided a linear body comprising: a first hair portion formed at least at a portion of an intermediate portion of the human body facing surface and inclined at a first angle with respect to the human body facing surface; And a second hair portion formed at a rim portion of the human body facing surface and inclined at a second angle larger than the first angle with respect to the human body facing surface.

Further, according to the present invention, the air pocket forming member may be a plurality of fibrous members which can surround the air.

Further, according to the present invention, the fibrous body includes: a first fibrous layer formed on at least a part of an intermediate portion of the human body facing surface and having a first thickness; And a second fiber layer formed on a rim of the human body facing surface and having a second thickness that is thicker than the first thickness.

Further, according to the present invention, the air pocket forming member may be a plurality of porous articles capable of holding air around.

Further, according to the present invention, the porous article may include: a first porous layer formed on at least a part of an intermediate portion of the human body-facing surface and having a first thickness; And a second porous layer formed at a rim portion of the human body facing surface and having a second thickness that is thicker than the first thickness.

According to the present invention, in the thermoelectric module, an exposed surface is formed so that at least a part of an intermediate portion of the human body-facing surface can be in direct contact with the human body, and the air- As shown in FIG.

According to some embodiments of the present invention as described above, not only the heat energy generated from the human body can be smoothly guided to the thermoelectric module, but also the air containing heat energy is prevented from flowing out to the outside air, The thermoelectric efficiency is greatly improved by preventing the loss of heat energy transmitted from the human body to the thermoelectric module, and the air pocket forming member is partially or wholly provided at the rim of the human body facing surface of the thermoelectric module to increase the heat transfer rate, It is possible to enhance the familiarity of the human body by using the hair part and to make the use of the hair part convenient. Of course, the scope of the present invention is not limited by these effects.

1 is a cross-sectional view illustrating a wearable thermoelectric device according to some embodiments of the present invention.
2 is a bottom perspective view showing the bottom surface of the wearable thermoelectric device shown in Fig.
3 is a cross-sectional view illustrating a wearable thermoelectric device according to some alternative embodiments of the present invention.
4 is a bottom perspective view showing a bottom surface of the wearable thermoelectric device shown in Fig.
5 to 10 are sectional views showing a wearable thermoelectric device according to still another embodiment of the present invention.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified into various other forms, It is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art. In the drawings, the thickness and size of each layer are exaggerated for convenience and clarity of explanation.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing ideal embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention should not be construed as limited to the particular shapes of the regions shown herein, but should include, for example, changes in shape resulting from manufacturing.

Hereinafter, a wearable thermoelectric device according to various embodiments of the present invention will be described in detail with reference to the drawings.

1 is a cross-sectional view showing a wearable thermoelectric device 100 according to some embodiments of the present invention. 2 is a bottom perspective view showing the bottom of the wearable thermoelectric device 100 of FIG.

First, as shown in FIGS. 1 and 2, a wearable thermoelectric device 100 according to some embodiments of the present invention may include a thermoelectric module 10 and an air pocket forming member 20.

For example, the thermoelectric module 10 shown in Fig. 1 may be a device for generating thermoelectric power using the temperature difference between the human body facing surface 10a and the external facing surface 10b.

1 and 2, the thermoelectric module 10 includes a heat absorbing portion 11, a heat releasing portion 12, an N-type thermoelectric element 13, A P-type thermoelectric element 14, and a wiring layer 15. [

The heat absorbing part 11 may absorb the heat energy of the human body and transmit the absorbed heat to the N-type thermoelectric element 13 or the P-type thermoelectric element 14, Type thermoelectric element 13 or the P-type thermoelectric element 14 to the outside.

Due to the temperature difference between the heat absorbing portion 11 and the heat releasing portion 12, electrons are emitted from the heat absorbing portion 11 to the heat releasing portion 11, Type thermoelectric element 14 moves in the direction of the heat releasing part 12 from the heat absorbing part 11 to the hole. A current flows in a counterclockwise direction in accordance with the movement of electrons and holes, and this current flows through the wiring layer 15 connected in series with the N-type thermoelectric element 13 and the P- Or external components.

In order for the thermoelectric module 10 to have a high thermoelectric efficiency, the heat absorbed by the heat absorbing part 11 absorbs the external heat source as much as possible and absorbs all the heat absorbed by the N-type thermoelectric element 13 and the P- 14 and the N-type thermoelectric element 13 and the P-type thermoelectric element 14 should transfer the heat received from the heat absorbing part 11 to the heat emitting part 150 as slowly as possible . The heat releasing part 12 must emit as much heat as possible from the N-type thermoelectric element 13 and the P-type thermoelectric element 14 without absorbing the thermal energy of the human body 1 at all . That is, a high temperature difference between the heat absorbing portion 11 and the heat releasing portion 12 is required to obtain a high thermoelectric efficiency.

The ZT value is generally used as an index to measure a thermoelectric efficiency of the thermoelectric module 10 as described above.

The ZT value is proportional to the square of the Seebeck coefficient and the electric conductivity, and is inversely proportional to the thermal conductivity value. However, in the case of a thermoelectric device using a metal, the Seebeck coefficient is very low at a value of several K / K, and since the electrical conductivity and the thermal conductivity are proportional to each other by the Wiedemann-Franz law, Can not have a high ZT value.

As a method for solving such a problem, a thermoelectric device using a semiconductor material has been recently developed. As a typical thermoelectric device material, Bi 2 having a ZT value of 0.7 at room temperature and a ZT value of 0.9 at 120 ° C Te 3 and SiGe having a ZT value of at least 0.1 at room temperature and a ZT value of up to 0.9 at 900 ° C. At the same time, studies on materials (for example, silicon, etc.) capable of replacing conventional Bi 2 Te 3 are being actively conducted. For example, new materials such as a thermoelectric material using an organic material or black phosphorus as a layered structure may be used, or a hybrid structure in which an inorganic layer is inserted into a layered structure may be possible. The thermoelectric material used in the present invention is not limited to the above-mentioned examples.

Therefore, the thermoelectric module 10 can be used to make the temperature difference between the heat absorbing portion 11 and the heat releasing portion 12 high, such as clothes, shoes, hats, belts, socks, A wearable member 2 of a wearable type such as a glove, a mask, or a watch.

Therefore, the inside of the wearable member 2 can maintain a relatively high temperature due to the body temperature generated in the human body 1, while the outside of the wearable member 2 can be kept at a relatively low temperature Lt; / RTI >

However, if the inner temperature of the wearable member 2 is increased by increasing the heat insulating property of the wearable member 2 for high thermoelectric efficiency, the comfort of the human body can not be avoided. The present invention can increase the heat transfer efficiency without increasing the inner temperature of the wearable member 2 while maintaining the comfort using the air pocket forming member 20 described later.

1 and 2, the air pocket forming member 20 is provided on at least a part of the human body-facing surface 10a and is provided with a heat- And may be a member for forming an air pocket (AP) near the human body facing surface 10a so as to prevent energy loss.

For example, as shown in Figs. 1 and 2, the air pocket forming member 20 may be a plurality of linear objects 21 that can hold air around.

Here, the linear object 21 is a linear object formed long in the longitudinal direction such as hair, hair, villus, rod-shaped protrusion, thread, etc., and is made of a relatively flexible material, Refers to any object capable of forming an air pocket (AP) with a clearance therebetween to achieve a warming effect. Further, the air pockets AP may be a space that the air can easily stay in.

The linear object 21 may be formed in various shapes such as a straight line, a curved line, a single strand, or a plurality of strands.

2, the line-shaped object 21 is divided into an intermediate portion A1 of the human body facing surface 10a and a rim portion A2 of the human body facing surface 10a, Can be evenly formed over the entire surface of the base 10a.

For example, the linear object 21 is a relatively soft polymer material produced by chemically synthesizing long molecules such as nylon, vinyone, vinylon, saran, acrylic, vinyl chloride, urethane, .

In addition, the linear object 21 may be a rod-shaped elastic member made of natural rubber, synthetic rubber, or various plastics.

The linear body 21 can be adhered to the human body facing surface 10a using an adhesive having a good thermal conductivity and can be adhered to the surface of the human body facing surface 10a by various methods such as wet spinning or dry spinning .

Therefore, when the user wears the wearable member 2 formed in a form such as a garment, a shoe, a hat, a belt, a sock, a glove, a mask, The thermoelectric module 10 provided on the wearable member 2 can convert thermal air generated in the human body 1 into electrical energy.

As shown in FIG. 1, a plurality of the linear objects 21 are provided on the surface of the human body facing surface 10a so as to form a fine air pocket AP therebetween, Thereby preventing the loss of heat energy transferred from the human body 1 to the thermoelectric module 10, thereby greatly improving the thermoelectric efficiency, increasing the heat transfer rate and improving the heat retention rate.

In addition, the linear object 21 improves the comfort of the thermoelectric module 10 to enhance the comfort, and protects the thermoelectric module 10 by acting as a kind of cushion.

FIG. 3 is a cross-sectional view showing a wearable thermoelectric device 200 according to some other embodiments of the present invention, and FIG. 4 is a bottom perspective view showing a bottom surface of the wearable thermoelectric device 200 of FIG.

3 and 4, the linearly-shaped object 21 of the wearable thermoelectric device 200 according to some other embodiments of the present invention is formed so as to surround the middle portion A1 of the human body facing surface 10a And may be formed at the rim portion A2 of the human body facing surface.

In the thermoelectric module 10, an exposed surface F is formed so that at least a part of the intermediate portion A1 of the human body facing surface 10a can be in direct contact with the human body 1, The forming member 20 may be formed to surround the exposed surface F.

3, the intermediate portion A1 of the human body opposing face 10a is in direct contact with the human body 1 so that heat transfer can be smoothly performed, and the linear body 21 is in contact with the air (A2) of the human body facing surface (10a), which is easy to escape, by forming multiple fine air pockets (AP) therebetween to prevent air containing thermal energy from flowing out to the outside air , It is possible to prevent the loss of thermal energy transferred from the human body 1 to the thermoelectric module 10, thereby greatly improving the thermoelectric efficiency, increasing the heat transfer rate and improving the heat retention rate.

5 is a sectional view showing a wearable thermoelectric device 300 according to still another embodiment of the present invention.

5, the linearly-shaped object 21 of the wearable thermoelectric device 300 according to some other embodiments of the present invention is provided on at least a part of the middle portion A1 of the human body facing surface 10a A first hair portion H1 formed to protrude so as to have a first length L1 from the human body facing surface 10a and a second hair portion H1 formed at the rim portion A2 of the human body facing surface 10a And a second hair portion H2 protruding from the human body facing surface 10a to have a second length L2 longer than the first length L1.

Therefore, the first hair portion H1 close to the middle portion A1 of the human body facing surface 10a, which has a high probability of being in direct contact with the human body 1 having a rounded surface, is short in length and can increase the thermal conductivity The second hair portion H2 that is close to the rim portion A1 of the human body facing surface 10a where there is a high probability of being separated from the human body 1 is long, It is possible to increase the area and improve the heat holding ratio.

6 is a cross-sectional view showing a wearable thermoelectric device 400 according to still another embodiment of the present invention.

6, the linearly-shaped object 21 of the wearable thermoelectric device 400 according to still another embodiment of the present invention is provided with at least a part of the middle portion A1 of the human body facing surface 10a A first hair portion H1 having a first density and a second hair portion H2 formed at a rim A2 of the human body facing surface 10a and having a second density higher than the first density, ).

Therefore, the first hair portion H1 close to the middle portion A1 of the human body facing surface 10a, which is likely to be in direct contact with the human body 1 having a rounded surface, has a low density and can increase the thermal conductivity The second hair portion H2 which is close to the rim portion A1 of the human body facing surface 10a where there is a high probability of being separated from the human body 1 is highly dense and the air pocket AP It is possible to increase the area and improve the heat holding ratio.

7 is a cross-sectional view showing a wearable thermoelectric device 500 according to still another embodiment of the present invention.

7, the linearly-shaped object 21 of the wearable thermoelectric device 500 according to still another embodiment of the present invention is provided on at least a part of the middle portion A1 of the human body facing surface 10a And has a first hair portion H1 having a first thickness D1 and a second thickness D2 formed at a rim portion A2 of the human body facing surface and thicker than the first thickness D1 And a second hair portion H2.

Therefore, the first hair portion H1 close to the middle portion A1 of the human body facing surface 10a, which has a high probability of being in direct contact with the human body 1 having a rounded surface, is thin and curved very well, The second hair portion H2 that is close to the rim portion A1 of the human body facing surface 10a where heat conduction can be increased and the probability of being separated from the human body 1 is high and heat loss is likely to occur, It is possible to increase the area of the air pockets (AP) to improve the heat retention ratio.

8 is a cross-sectional view showing a wearable thermoelectric device 600 according to still another embodiment of the present invention.

8, the line-shaped object 21 of the wearable thermoelectric device 600 according to still another embodiment of the present invention is provided with at least a part of the middle portion A1 of the human body facing surface 10a A first hair portion H1 formed to be inclined at a first angle K1 with respect to the human body facing surface 10a and a rim portion A2 formed at a rim portion A2 of the human body facing surface 10a, And a second hair portion H2 that is inclined at a second angle K2 that is greater than the first angle K1 with respect to the human body facing surface 10a.

Therefore, the first hair portion H1 close to the middle portion A1 of the human body facing surface 10a, which has a high probability of being in direct contact with the human body 1 having a rounded surface, is much inclined and bent well, The second hair portion H2 close to the rim portion A1 of the human body facing surface 10a where the heat conduction rate can be increased and the probability of being separated from the human body 1 is high and heat loss is likely to occur, So that the area of the air pocket (AP) can be widened and the heat holding ratio can be improved.

9 is a sectional view showing a wearable thermoelectric device 700 according to still another embodiment of the present invention.

9, the air pocket forming member 20 of the wearable thermoelectric device 700 according to still another embodiment of the present invention may be a plurality of fibrous members 22 have. Such a fiber body may include all natural fibers or synthetic fibers including common yarns.

The fibrous body 22 is formed on at least a portion of the middle portion A1 of the human body facing surface 10a and includes a first fibrous layer 22-1 having a first thickness T1, And a second fiber layer 22-2 formed at the rim portion A2 of the surface 10a and having a second thickness T2 that is thicker than the first thickness T1.

Therefore, the first fibrous layer 22-1 close to the intermediate portion A1 of the human body facing surface 10a, which is likely to be in direct contact with the human body 1 having a rounded surface, is thin, the thermal conductivity can be increased, The second fibrous layer 22-2 close to the rim A1 of the human body facing surface 10a which is likely to be separated from the human body 1 due to high heat loss is thick and the area of the air pocket AP And the thermal conductivity can be improved.

10 is a sectional view showing a wearable thermoelectric device 800 according to still another embodiment of the present invention.

10, the air pocket forming member 20 of the wearable thermoelectric device 800 according to some other embodiments of the present invention may be a plurality of porous bodies 23 that can be air-tightly held in the periphery . The porous article 23 may be any type of porous article having a plurality of pores formed therein such as a sponge, a styrofoam, or a sponge.

The porous article 23 is formed on at least a portion of the intermediate portion A1 of the human body facing surface 10a and includes a first porous layer 23-1 having a first thickness T1, And a second porous layer 23-2 formed at the rim portion A2 of the surface 10a and having a second thickness T2 that is thicker than the first thickness T1.

Therefore, the first porous layer 23-1 close to the middle portion A1 of the human body facing surface 10a, which is likely to be in direct contact with the human body 1 having a rounded surface, is thin, so that the thermal conductivity can be increased , The second porous layer 23-2 close to the rim portion A1 of the human body facing surface 10a where there is a high probability of being separated from the human body 1 is thick and the air pocket AP It is possible to increase the area and improve the heat holding ratio.

While the present invention has been described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Claims (12)

delete delete A thermoelectric module for generating thermoelectric power using a temperature difference between a body facing surface and an external facing surface; And
And an air pocket forming member provided on at least a part of the human body facing surface and forming an air pocket near the human body facing surface so as to prevent loss of thermal energy transmitted from the human body to the thermoelectric module,
The air pocket forming member is a line-shaped object which can be air-tightly held around the air pocket forming member in such a manner that a plurality of air pocket forming members are arranged in parallel to each other to form the air pocket with a gap therebetween,
Wherein the linear object is formed at a rim portion of the human body facing surface so as to surround an intermediate portion of the human body facing surface. A thermoelectric module for generating thermoelectric power using a temperature difference between a body facing surface and an external facing surface; And
And an air pocket forming member provided on at least a part of the human body facing surface and forming an air pocket near the human body facing surface so as to prevent loss of thermal energy transmitted from the human body to the thermoelectric module,
The air pocket forming member is a line-shaped object which can be air-tightly held around the air pocket forming member in such a manner that a plurality of air pocket forming members are arranged in parallel to each other to form the air pocket with a gap therebetween,
The line-
A first hair portion formed on at least a portion of an intermediate portion of the human body facing surface and formed in a shape protruding to have a first length from the human body facing surface; And
A second hair portion formed at a rim portion of the human body facing surface and formed in a shape protruding from the human body facing surface to have a second length longer than the first length;
Wherein the thermoelectric device comprises: A thermoelectric module for generating thermoelectric power using a temperature difference between a body facing surface and an external facing surface; And
And an air pocket forming member provided on at least a part of the human body facing surface and forming an air pocket near the human body facing surface so as to prevent loss of thermal energy transmitted from the human body to the thermoelectric module,
The air pocket forming member is a line-shaped object which can be air-tightly held around the air pocket forming member in such a manner that a plurality of air pocket forming members are arranged in parallel to each other to form the air pocket with a gap therebetween,
The line-
A first hair portion formed on at least a portion of an intermediate portion of the human body facing surface and having a first density; And
A second hair portion formed at a rim portion of the human body facing surface and having a second density higher than the first density;
Wherein the thermoelectric device comprises: A thermoelectric module for generating thermoelectric power using a temperature difference between a body facing surface and an external facing surface; And
And an air pocket forming member provided on at least a part of the human body facing surface and forming an air pocket near the human body facing surface so as to prevent loss of thermal energy transmitted from the human body to the thermoelectric module,
The air pocket forming member is a line-shaped object which can be air-tightly held around the air pocket forming member in such a manner that a plurality of air pocket forming members are arranged in parallel to each other to form the air pocket with a gap therebetween,
The line-
A first hair portion formed on at least a part of an intermediate portion of the human body facing surface and having a first thickness; And
A second hair portion formed on a rim of the human body facing surface and having a second thickness that is thicker than the first thickness;
Wherein the thermoelectric device comprises: A thermoelectric module for generating thermoelectric power using a temperature difference between a body facing surface and an external facing surface; And
And an air pocket forming member provided on at least a part of the human body facing surface and forming an air pocket near the human body facing surface so as to prevent loss of thermal energy transmitted from the human body to the thermoelectric module,
The air pocket forming member is a line-shaped object which can be air-tightly held around the air pocket forming member in such a manner that a plurality of air pocket forming members are arranged in parallel to each other to form the air pocket with a gap therebetween,
The line-
A first hair portion formed on at least a part of an intermediate portion of the human body facing surface and inclined at a first angle with respect to the human body facing surface; And
A second hair portion formed at a rim portion of the human body facing surface and inclined at a second angle larger than the first angle with respect to the human body facing surface;
Wherein the thermoelectric device comprises: delete A thermoelectric module for generating thermoelectric power using a temperature difference between a body facing surface and an external facing surface; And
And an air pocket forming member provided on at least a part of the human body facing surface and forming an air pocket near the human body facing surface so as to prevent loss of thermal energy transmitted from the human body to the thermoelectric module,
Wherein the air pocket forming member is a fiber body which is capable of holding air around the air pocket forming member so that a plurality of the air pocket forming members are arranged in parallel to each other to form the air pocket with a clearance therebetween to provide a warming effect,
In the fibrous body,
A first fibrous layer formed on at least a portion of an intermediate portion of the human body facing surface and having a first thickness; And
A second fibrous layer formed at a rim portion of the human body facing surface and having a second thickness that is thicker than the first thickness;
Wherein the thermoelectric device comprises: delete A thermoelectric module for generating thermoelectric power using a temperature difference between a body facing surface and an external facing surface; And
And an air pocket forming member provided on at least a part of the human body facing surface and forming an air pocket near the human body facing surface so as to prevent loss of thermal energy transmitted from the human body to the thermoelectric module,
The air pocket forming member is a porous article which can be air-tightly held around the air pocket forming member so that a plurality of the air pocket forming members are arranged side by side to form the air pocket with a gap therebetween to provide a warming effect,
The porous article may be,
A first porous layer formed on at least a portion of an intermediate portion of the human body facing surface and having a first thickness; And
A second porous layer formed at a rim portion of the human body facing surface and having a second thickness greater than the first thickness;
Wherein the thermoelectric device comprises: 12. The method according to any one of claims 3, 4, 5, 6, 7, 9, and 11,
Wherein the thermoelectric module has an exposed surface formed so that at least a portion of an intermediate portion of the human body facing surface can be in direct contact with the human body,
Wherein the air pocket forming member is formed to surround the exposed surface.
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KR101813795B1 (en) 2016-06-09 2017-12-29 연세대학교 산학협력단 Flexible thermoelectric system
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