WO2017131422A1 - Flexible heating product - Google Patents

Flexible heating product Download PDF

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Publication number
WO2017131422A1
WO2017131422A1 PCT/KR2017/000847 KR2017000847W WO2017131422A1 WO 2017131422 A1 WO2017131422 A1 WO 2017131422A1 KR 2017000847 W KR2017000847 W KR 2017000847W WO 2017131422 A1 WO2017131422 A1 WO 2017131422A1
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WO
WIPO (PCT)
Prior art keywords
based carbon
layer
heat generating
pan
flexible
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PCT/KR2017/000847
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French (fr)
Korean (ko)
Inventor
이준상
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(주)티엔케이
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Publication of WO2017131422A1 publication Critical patent/WO2017131422A1/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Definitions

  • the present invention relates to a flexible heating product.
  • planar heating element which has a higher thermal efficiency than the heater using a heating wire is used.
  • the planar heating element is made by coating carbon black on a PET (Polyethylene Terephthalate) film.
  • the PET film When the planar heating element is severely bent, the PET film is cut and cut, and cracks may be generated between the carbon blacks formed on the PET film, thereby causing electrical breakdown. This leads to the failure of the heating element.
  • planar heating element is difficult to be installed in a product that is badly wrinkled, such as gloves. Even if it is installed, it can only be installed in areas that are less wrinkled, such as the top of the gloves.
  • original application invention 10-2016-0011250, hereinafter referred to as "original application invention" of the present application.
  • the resistance per unit area of the heating layer can be reduced according to the size of the heating product.
  • An object of the present invention is to provide a flexible heating product made of a heat generating layer easily.
  • Another object of the present invention is to provide a flexible heating element having a constant heat generation under the same current, even if the size of the heating element is different.
  • a second flexible insulating layer A second flexible insulating layer
  • a flexible heating layer interposed between the first insulating layer and the second insulating layer;
  • the heat generating layer is characterized in that consisting of carbon fibers randomly arranged overlapping each other.
  • the present invention provides a heating layer made of PAN-based carbon fibers randomly arranged to overlap each other or PAN-based carbon fibers and Pitch-based carbon fibers randomly mixed to overlap each other. Therefore, the heat generating layer only needs to be interposed between the first insulating layer and the second insulating layer. Thus, as in the original application or the prior invention, carbon black is applied and cured on the insulating layer, thereby eliminating the difficult task of making the heat generating layer. do.
  • the heating layer is composed of only the PAN-based carbon fibers, or mixed PAN-based carbon fibers and Pitch-based carbon fibers so that the resistance per unit area is adjusted according to the size of the heating products (cushion, chair seat, bed sheet, etc.) It is composed.
  • the mixing ratio of the PAN-based carbon fibers or the pitch-based carbon fibers can be more precisely adjusted the resistance per unit area of the heating layer. Therefore, even if the size of the heat generating product is different, the resistance per unit area can be adjusted to produce the same heat generation as a whole under the same current. This leads to energy savings.
  • FIG. 1 is a photograph of a heating product (cushion) according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view II-II shown in FIG. 1.
  • FIG. 3 is a view showing a heat generating layer composed of carbon black shown in FIG.
  • FIG. 4 is a photograph of a state in which the heating layer illustrated in FIG. 1 is sewn.
  • FIG. 5 is a photograph of a state in which a hole is formed in the heating layer illustrated in FIG. 1.
  • FIG. 6 is a view showing a heat generating layer made of PAN-based carbon fibers as a modification of the heat generating layer shown in FIG. 1.
  • FIG. 7 is a photograph of a heat generation product (chair seat) according to a second embodiment of the present invention.
  • FIG. 8 is a view illustrating a heating layer in which a PAN-based carbon fiber and a Pitch-based carbon fiber shown in FIG. 7 are mixed at 9: 1.
  • FIG. 9 is a photograph of a heating product (bed sheet) according to a third embodiment of the present invention.
  • FIG. 10 is a view illustrating a heating layer in which a PAN-based carbon fiber and a Pitch-based carbon fiber shown in FIG. 9 are mixed at 6: 4.
  • the flexible heating product 10 As shown in FIG. 1, the flexible heating product 10 according to the first embodiment of the present invention is a cushion.
  • the cushion has a size of 350mm ⁇ 350mm.
  • the flexible heat generating article 10 is composed of a coating layer 11, an insulating layer 12, a heat generating layer 13, and an electrode 14.
  • the insulating layer 12, the heat generating layer 13, and the electrode 14 which are bonded to each other are referred to as a heat generating set.
  • the coating layer 11 is attached to the insulating layer 12.
  • the reason why the coating layer 11 is attached to the insulating layer 12 is to give the heat generating product 10 a feeling of general cushion.
  • the coating layer 11 is comprised from the 1st coating layer 11a and the 2nd coating layer 11b.
  • the coating layer 11 may be made of various kinds of fabric, leather, artificial hair, fur, and the like.
  • the coating layer 11 may be omitted as needed. For example, when only the heat generating set is made of the heat generating product, the coating layer 11 can be omitted.
  • the insulating layer 12 is composed of a first insulating layer 12a and a second insulating layer 12b.
  • the insulating layer 12 performs an insulating function. At the same time, the insulating layer 12 has a waterproof function to wash the flexible heating product 10. It is an important feature of the present invention that the insulating layer 12 has a waterproof function.
  • the insulating layer 12 is made of a polymer material or rubber.
  • the insulating layer 12 is flexible.
  • the insulating layer 12 is made of a thickness of 0.05 ⁇ 2mm.
  • the heat generating layer 13 is made of carbon black (CB).
  • the heat generating layer 13 is made of carbon black (CB) thinly coated on the first insulating layer 12a and then cured.
  • the heat generating layer 13 is flexible. To this end, the heating layer 13 is made of a thickness of 0.001 ⁇ 1mm.
  • the electrode 14 is composed of a first electrode 14a and a second electrode 14b.
  • the first electrode 14a is connected to the + pole of the power supply unit (not shown).
  • the second electrode 14b is connected to the minus pole of the power supply unit (not shown).
  • the first electrode 14a and the second electrode 14b are attached to the heat generating layer 13.
  • the first electrode 14a and the second electrode 14b are attached to the left end and the right end of the heat generating layer 13, respectively.
  • the first electrode 14a and the second electrode 14b are flexible.
  • the first electrode 14a and the second electrode 14b are made of copper.
  • the first electrode 14a and the second electrode 14b are flexible. To this end, each of the first electrode 14a and the second electrode 14b is made to have a thickness of 0.001 to 1 mm.
  • the heat generating set may be sewn (Fsw) to produce various heat generating products.
  • holes H may be drilled in the heat generating set to produce various heat generating products.
  • the heating layer may be modified as follows.
  • Applicant has improvements in the heat generating layer of the original application (the difficulty of applying and curing carbon black on the insulating layer to make the heat generating layer, and if the heat generating product becomes larger, the overall resistance is larger and requires more energy). After discovering, after a lot of worries have developed a completely new heating layer 100 that is not in the original application or prior invention.
  • the heat generating layer 100 shown in Figure 6 is composed of a PAN-based carbon fiber 101.
  • the heat generating layer 100 is composed of the PAN-based carbon fiber 101, it is necessary to apply and harden carbon black (CB, see FIG. 3) on the insulating layer 12 (see FIG. 2) to make the heat generating layer 100. There is no.
  • PAN-based carbon fibers 101 are randomly arranged to overlap each other so that current can flow.
  • the current supplied from the power supply unit flows through the first electrode 14a, the heating layer 100, and the second electrode 14b. At this time, heat is generated in the PAN-based carbon fiber 101, which is a resistor, and the heat generating product 10 is warmed.
  • the flexible heating product 20 according to the second embodiment of the present invention is a chair seat.
  • the chair seat has a size of 500 mm x 500 mm.
  • the heat generating product 20 according to the second embodiment of the present invention is the same except for the heat generating product 10 and the heat generating layer 200 according to the first embodiment. Therefore, only the heat generating layer 200 will be described.
  • the heat generating layer 200 includes a PAN-based carbon fiber 201 and a Pitch-based carbon fiber 202 which are randomly disposed and mixed to overlap each other so that current can flow.
  • the heat generating layer 200 is composed of the PAN-based carbon fiber 201 and the Pitch-based carbon fiber 202, the carbon black (CB, FIG. 2) is formed on the insulating layer 12 (see FIG. 2) to make the heat generating layer 200. 3) need not be applied and cured.
  • the PAN-based carbon fiber 201 has a higher resistance and a lower price than the Pitch-based carbon fiber 202.
  • the chair seat is larger than the cushion, so that the entire area of the heating layer 200 is larger than the heating layer 100 of the cushion. Therefore, if the resistance per unit area of the heat generating layer 200 is lowered, even though the same current as that sent to the heat generating layer 100 of the cushion flows to the heat generating layer 200 of the seat, the seat is generally the same amount of heat as the cushion. I can make it. That is, the chair seat can be heated without exceeding the energy for heating the cushion.
  • the PAN-based carbon fiber 202 is mixed with the Pitch-based carbon fiber 202 having low resistance to lower the resistance per unit area.
  • the preferable resistance per unit area is 10-50 GPa / square.
  • the PAN-based carbon fiber 201 and the Pitch-based carbon fiber 202 are mixed at 9: 1.
  • the PAN-based carbon fiber 201 is mixed with a low-pitch carbon-based fiber 202 to lower the resistance per unit area.
  • the amount of the PAN-based carbon fiber 201 can be reduced to lower the resistance per unit area.
  • the PAN-based carbon fiber 201 may not overlap each other and may be cut off. Therefore, when the size of the heating element exceeds the cushion, the resistance per unit area should be adjusted by mixing PAN-based carbon fibers 201 and Pitch-based carbon fibers 202 having different resistances.
  • the current supplied from the power supply unit flows through the first electrode 14a, the heating layer 200, and the second electrode 14b. At this time, heat is generated in the PAN-based carbon fiber 201 and the Pitch-based carbon fiber 202 which are resistors, and the heat generating product 20 is warmed.
  • the flexible heating product 30 according to the third embodiment of the present invention is a bed sheet.
  • the bed sheet has a size of 1000 mm x 1500 mm.
  • the heat generating product 30 according to the third embodiment of the present invention is the same except for the heat generating product 10 and the heat generating layer 300 according to the first embodiment. Therefore, only the heat generating layer 300 will be described.
  • the heating layer 300 includes a PAN-based carbon fiber 301 and a Pitch-based carbon fiber 302 which are randomly disposed and mixed to overlap each other so that current can flow.
  • the heat generating layer 300 is composed of the PAN-based carbon fiber 301 and the Pitch-based carbon fiber 302, the carbon black (CB, FIG. 2) is formed on the insulating layer 12 (see FIG. 2) to make the heat-generating layer 300. 3) need not be applied and cured.
  • the bed sheet is larger than the chair seat, and the entire area of the heating layer 300 is larger than the heating layer 200 of the chair seat. Therefore, when the resistance per unit area of the heating layer 300 is lower than the resistance per unit area of the heating layer 200 of the chair seat, the heating layer 300 of the bed sheet has the same current as that sent to the heating layer 100 of the cushion. Even when spilled on, the bed sheet can produce the same calories as a cushion as a whole. That is, the bed sheet can be heated without exceeding the energy for heating the cushion.
  • the PAN-based carbon fiber 301 is mixed with a low-pitch carbon-based fiber 302 to lower the resistance per unit area.
  • preferable resistance per unit area is 1-30 kPa / square.
  • the PAN-based carbon fibers 201 and the Pitch-based carbon fibers 202 are mixed at 6: 4.

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  • Surface Heating Bodies (AREA)
  • Resistance Heating (AREA)

Abstract

A flexible heating product, according to the present invention, comprises: a first flexible insulating layer; a second flexible insulating layer; a flexible heating layer interposed between the first insulating layer and second insulating layer; and a flexible electrode adhered to the heating layer, wherein the heating layer comprises carbon fibers that are randomly stacked on top of the other.

Description

플렉서블 발열품Flexible heating element
본 발명은 플렉서블 발열품에 관한 것이다.The present invention relates to a flexible heating product.
최근에, 열선을 사용한 전열기보다 열효율이 높은 면상발열체가 많이 사용되고 있다.In recent years, the planar heating element which has a higher thermal efficiency than the heater using a heating wire is used.
일반적으로 면상발열체는 PET(Polyethylene Terephthalate)필름에 카본블랙이 도포되어 만들어진다.Generally, the planar heating element is made by coating carbon black on a PET (Polyethylene Terephthalate) film.
이러한 면상발열체는 심하게 구부러질 경우, PET필름이 꺽여 절단됨으로써, PET필름에 형성된 카본블랙 사이사이에 균열이 생겨 단전될 수 있다. 이는 발열품의 불량으로 이어진다.When the planar heating element is severely bent, the PET film is cut and cut, and cracks may be generated between the carbon blacks formed on the PET film, thereby causing electrical breakdown. This leads to the failure of the heating element.
이로 인해, 면상발열체는 장갑과 같이 심하게 구겨지는 제품에는 설치되기 어렵다. 설치되더라도, 장갑의 윗부분과 같이 덜 구겨지는 부분에만 설치가 가능하다.Because of this, the planar heating element is difficult to be installed in a product that is badly wrinkled, such as gloves. Even if it is installed, it can only be installed in areas that are less wrinkled, such as the top of the gloves.
이러한 문제점을 해결하기 위한 플렉서블한 발열품이, 본 출원의 원 출원 발명(10-2016-0011250, 이하 ‘원 출원 발명’이라 칭함)에 개시되어 있다.A flexible heating product for solving such a problem is disclosed in the original application invention (10-2016-0011250, hereinafter referred to as "original application invention") of the present application.
또한, 한국공개특허(10-2012-0036702, 이하 ‘선행발명’이라 칭함)에도 개시되어 있다.In addition, it is disclosed in Korea Patent Publication (10-2012-0036702, hereinafter referred to as "prior invention").
그러나, 원 출원 발명이나 선행발명은, 카본블랙을 절연층 위에 도포하고 경화시켜 발열층을 만들기 때문에, 발열층을 만드는 작업이 까다롭다.However, since the original application invention and the prior invention make a heat generating layer by coating and curing carbon black on an insulating layer, it is difficult to make a heat generating layer.
한편, 발열품의 크기가 커지면 발열층의 면적(카본블랙이 도포된 면적)도 커지는데, 이 경우 발열층의 전체저항도 커진다. 이 경우, 더 많은 전류를 흘려보내야 상대적으로 크기가 작은 발열품과 전체적으로 동일한 열량을 낼 수 있다. 이는 에너지의 낭비로 이어진다. 특히, 에너지원으로 배터리를 사용할 경우, 배터리의 사용시간이 급격하게 줄어들어 발열품의 휴대가 불가능해진다.On the other hand, when the size of the heat generating product increases, the area of the heat generating layer (area coated with carbon black) also increases, in which case the overall resistance of the heat generating layer also increases. In this case, more current must be flown to produce the same amount of heat as a relatively small heating element. This leads to a waste of energy. In particular, when the battery is used as an energy source, the usage time of the battery is drastically shortened, so that carrying of the heating product is impossible.
이를 해결하기 위해서, 발열품의 크기에 따라 발열층의 단위면적당 저항을 줄일 수 있다. 그러나, 원 출원 발명이나 선행발명에서는 단위면적당 저항을 줄이는 작업이 매우 어렵다.In order to solve this problem, the resistance per unit area of the heating layer can be reduced according to the size of the heating product. However, it is very difficult to reduce the resistance per unit area in the original application invention or the prior invention.
왜냐하면, 발열층의 단위 면적당 저항을 낮추기 위해, 카본블랙을 무한정 얇게 도포할 수 없기 때문이다. 설사, 카본블랙을 얇게 도포하더라도, 카본블랙의 도포두께가 너무 얇으면, 발열품이 구부러질 때, 발열층 사이사이에 균열(틈, 갈라짐)이 생겨 단전될 수 있기 때문이다. 이는 곧바로 발열품의 불량으로 이어진다.This is because, in order to lower the resistance per unit area of the heat generating layer, carbon black cannot be applied indefinitely thinly. This is because even if the carbon black is thinly applied, if the coating thickness of the carbon black is too thin, cracks (cracks) and cracks may occur between the heat generating layers when the heat generating article is bent, thereby causing electrical breakdown. This immediately leads to a defective product.
본 발명의 목적은, 발열층이 쉽게 만들어진 플렉서블 발열품을 제공하는 데 있다.An object of the present invention is to provide a flexible heating product made of a heat generating layer easily.
본 발명의 다른 목적은, 발열품의 크기가 달라지더라도, 동일한 전류하에서 전체적으로 발열량이 일정한 플렉서블 발열품을 제공하는 데 있다.Another object of the present invention is to provide a flexible heating element having a constant heat generation under the same current, even if the size of the heating element is different.
상기 목적을 달성하기 위한 플렉서블 발열품은,The flexible heating product for achieving the above object,
플렉서블한 제1절연층;A flexible first insulating layer;
플렉서블한 제2절연층;A second flexible insulating layer;
상기 제1절연층과 제2절연층 사이에 개재된 플렉서블한 발열층; 및A flexible heating layer interposed between the first insulating layer and the second insulating layer; And
상기 발열층에 부착된 플렉서블한 전극;을 포함하며,And a flexible electrode attached to the heating layer.
상기 발열층은 서로 겹치게 무작위로 배치된 탄소섬유로 구성된 것을 특징으로 한다.The heat generating layer is characterized in that consisting of carbon fibers randomly arranged overlapping each other.
본 발명은, 서로 겹치게 무작위로 배치된 PAN계 탄소섬유 또는 서로 겹치게 무작위로 혼합된 PAN계 탄소섬유와 Pitch계 탄소섬유로 발열층을 만든다. 따라서, 발열층을 제1절연층과 제2절연층 사이에 개재시키기만 하면 되므로, 원 출원 발명이나 선행발명과 같이, 절연층 위에 카본블랙을 도포하고 경화시켜 발열층을 만드는 까다로운 작업을 하지 않아도 된다.The present invention provides a heating layer made of PAN-based carbon fibers randomly arranged to overlap each other or PAN-based carbon fibers and Pitch-based carbon fibers randomly mixed to overlap each other. Therefore, the heat generating layer only needs to be interposed between the first insulating layer and the second insulating layer. Thus, as in the original application or the prior invention, carbon black is applied and cured on the insulating layer, thereby eliminating the difficult task of making the heat generating layer. do.
본 발명은, 발열품(방석, 의자시트, 침대시트등)의 크기에 따라 단위면적당 저항이 조절되도록, 발열층이 PAN계 탄소섬유만으로 구성되거나, 혼합된 PAN계 탄소섬유와 Pitch계 탄소섬유로 구성된다. 이때, PAN계 탄소섬유 또는 Pitch계 탄소섬유의 혼합비를 조절하여 발열층의 단위면적당 저항을 보다 정밀하게 조절할 수 있다. 따라서, 발열품의 크기가 달라지더라도, 단위면적당 저항을 조절하여 동일한 전류하에서 전체적으로 동일한 발열량을 만들어 낼 수 있다. 이는 에너지 절감으로 이어진다.The present invention, the heating layer is composed of only the PAN-based carbon fibers, or mixed PAN-based carbon fibers and Pitch-based carbon fibers so that the resistance per unit area is adjusted according to the size of the heating products (cushion, chair seat, bed sheet, etc.) It is composed. At this time, by adjusting the mixing ratio of the PAN-based carbon fibers or the pitch-based carbon fibers can be more precisely adjusted the resistance per unit area of the heating layer. Therefore, even if the size of the heat generating product is different, the resistance per unit area can be adjusted to produce the same heat generation as a whole under the same current. This leads to energy savings.
도 1은 본 발명의 제1실시예에 따른 발열품(방석)을 찍은 사진이다.1 is a photograph of a heating product (cushion) according to a first embodiment of the present invention.
도 2는 도 1에 도시된 단면 Ⅱ-Ⅱ을 나타낸 도면이다.FIG. 2 is a cross-sectional view II-II shown in FIG. 1.
도 3은 도 1에 도시된 카본블랙으로 구성으로 발열층을 나타낸 도면이다.3 is a view showing a heat generating layer composed of carbon black shown in FIG.
도 4는 도 1에 도시된 발열층에 바느질을 한 상태를 찍은 사진이다.FIG. 4 is a photograph of a state in which the heating layer illustrated in FIG. 1 is sewn.
도 5는 도 1에 도시된 발열층에 구멍을 뚫은 상태를 찍은 사진이다.FIG. 5 is a photograph of a state in which a hole is formed in the heating layer illustrated in FIG. 1.
도 6은 도 1에 도시된 발열층의 변형예로, PAN계 탄소섬유로 구성된 발열층을 나타낸 도면이다.FIG. 6 is a view showing a heat generating layer made of PAN-based carbon fibers as a modification of the heat generating layer shown in FIG. 1.
도 7은 본 발명의 제2실시예에 따른 발열품(의자시트)을 찍은 사진이다.7 is a photograph of a heat generation product (chair seat) according to a second embodiment of the present invention.
도 8은 도 7에 도시된 PAN계 탄소섬유와 Pitch계 탄소섬유가 9:1로 혼합된 발열층을 나타낸 도면이다.FIG. 8 is a view illustrating a heating layer in which a PAN-based carbon fiber and a Pitch-based carbon fiber shown in FIG. 7 are mixed at 9: 1.
도 9는 본 발명의 제3실시예에 따른 발열품(침대시트)을 찍은 사진이다.9 is a photograph of a heating product (bed sheet) according to a third embodiment of the present invention.
도 10은 도 9에 도시된 PAN계 탄소섬유와 Pitch계 탄소섬유가 6:4로 혼합된 발열층을 나타낸 도면이다.FIG. 10 is a view illustrating a heating layer in which a PAN-based carbon fiber and a Pitch-based carbon fiber shown in FIG. 9 are mixed at 6: 4.
이하, 본 발명의 제1실시예에 따른 플렉서블 발열품을 설명한다.Hereinafter, the flexible heating product according to the first embodiment of the present invention will be described.
도 1에 도시된 바와 같이, 본 발명의 제1실시예에 따른 플렉서블 발열품(10)은 방석이다.As shown in FIG. 1, the flexible heating product 10 according to the first embodiment of the present invention is a cushion.
방석은 350mm×350mm의 크기를 가진다.The cushion has a size of 350mm × 350mm.
플렉서블 발열품(10)은, 피복층(11), 절연층(12), 발열층(13), 전극(14)으로 구성된다. 설명의 편의상, 서로 결합된 절연층(12), 발열층(13), 전극(14)을 발열세트라고 칭한다.The flexible heat generating article 10 is composed of a coating layer 11, an insulating layer 12, a heat generating layer 13, and an electrode 14. For convenience of description, the insulating layer 12, the heat generating layer 13, and the electrode 14 which are bonded to each other are referred to as a heat generating set.
도 2에 도시된 바와 같이,As shown in FIG. 2,
피복층(11)은 절연층(12)에 부착된다. 피복층(11)을 절연층(12)에 부착하는 이유는, 발열품(10)이 일반적인 방석의 느낌을 갖게 하기 위해서다.The coating layer 11 is attached to the insulating layer 12. The reason why the coating layer 11 is attached to the insulating layer 12 is to give the heat generating product 10 a feeling of general cushion.
피복층(11)은 제1피복층(11a), 제2피복층(11b)으로 구성된다.The coating layer 11 is comprised from the 1st coating layer 11a and the 2nd coating layer 11b.
피복층(11)은 직물, 가죽, 인조털, 모피 등으로 다양하게 만들어질 수 있다.The coating layer 11 may be made of various kinds of fabric, leather, artificial hair, fur, and the like.
피복층(11)은 필요에 따라 생략될 수 있다. 예를 들어, 발열품으로 발열세트만을 만드는 경우에는 피복층(11)을 생략할 수 있다.The coating layer 11 may be omitted as needed. For example, when only the heat generating set is made of the heat generating product, the coating layer 11 can be omitted.
절연층(12)은 제1절연층(12a), 제2절연층(12b)으로 구성된다.The insulating layer 12 is composed of a first insulating layer 12a and a second insulating layer 12b.
절연층(12)은 절연기능을 수행한다. 동시에, 절연층(12)은 플렉서블 발열품(10)을 물 빨래할 수 있게 방수기능을 가진다. 절연층(12)이 방수기능을 가지는 것은 본 발명만의 중요한 특징이 된다. 이를 위해, 절연층(12)은 폴리머재질이나 고무로 만들어진다.The insulating layer 12 performs an insulating function. At the same time, the insulating layer 12 has a waterproof function to wash the flexible heating product 10. It is an important feature of the present invention that the insulating layer 12 has a waterproof function. For this purpose, the insulating layer 12 is made of a polymer material or rubber.
절연층(12)은 플렉서블(flexible)하다. 이를 위해, 절연층(12)은 0.05~2mm의 두께로 만들어진다.The insulating layer 12 is flexible. For this purpose, the insulating layer 12 is made of a thickness of 0.05 ~ 2mm.
도 3에 도시된 바와 같이, 발열층(13)은 카본블랙(CB)으로 구성된다.As shown in FIG. 3, the heat generating layer 13 is made of carbon black (CB).
발열층(13)은 카본블랙(CB)이 제1절연층(12a)에 얇게 도포된 후 경화되어 만들어진다.The heat generating layer 13 is made of carbon black (CB) thinly coated on the first insulating layer 12a and then cured.
발열층(13)은 플렉서블(flexible)하다. 이를 위해, 발열층(13)은 0.001~1mm의 두께로 만들어진다.The heat generating layer 13 is flexible. To this end, the heating layer 13 is made of a thickness of 0.001 ~ 1mm.
전극(14)은 제1전극(14a), 제2전극(14b)으로 구성된다.The electrode 14 is composed of a first electrode 14a and a second electrode 14b.
제1전극(14a)은 전원부(미도시)의 + 극과 연결된다.The first electrode 14a is connected to the + pole of the power supply unit (not shown).
제2전극(14b)은 전원부(미도시)의 - 극과 연결된다.The second electrode 14b is connected to the minus pole of the power supply unit (not shown).
제1전극(14a), 제2전극(14b)은 발열층(13)에 부착된다.The first electrode 14a and the second electrode 14b are attached to the heat generating layer 13.
제1전극(14a), 제2전극(14b)은 발열층(13)의 좌측끝과 우측끝에 각각 부착된다.The first electrode 14a and the second electrode 14b are attached to the left end and the right end of the heat generating layer 13, respectively.
제1전극(14a), 제2전극(14b)은 플렉서블하다. 제1전극(14a), 제2전극(14b)은 구리로 만들어진다.The first electrode 14a and the second electrode 14b are flexible. The first electrode 14a and the second electrode 14b are made of copper.
제1전극(14a), 제2전극(14b)은 플렉서블(flexible)하다. 이를 위해, 제1전극(14a), 제2전극(14b) 각각은 0.001~1mm의 두께로 만들어진다.The first electrode 14a and the second electrode 14b are flexible. To this end, each of the first electrode 14a and the second electrode 14b is made to have a thickness of 0.001 to 1 mm.
전원부(미도시)에서 공급된 전류는 제1전극(14a), 발열층(13), 제2전극(14b)을 흐른다. 이때, 저항체인 카본블랙(CB)에서 열이 발생하여 발열품(10)이 따뜻해진다.Current supplied from the power supply unit (not shown) flows through the first electrode 14a, the heat generating layer 13, and the second electrode 14b. At this time, heat is generated in the carbon black (CB) that is the resistor to warm the heat generating product 10.
도 4에 도시된 바와 같이, 발열세트를 바느질(Fsw)하여, 다양한 발열품을 만들어 낼 수 있다.As shown in FIG. 4, the heat generating set may be sewn (Fsw) to produce various heat generating products.
도 5에 도시된 바와 같이, 발열세트에 구멍(H)을 뚫어, 다양한 발열품을 만들어 낼 수 있다.As shown in FIG. 5, holes H may be drilled in the heat generating set to produce various heat generating products.
도 6에 도시된 바와 같이, 발열층은 다음과 같이 변형될 수 있다.As shown in FIG. 6, the heating layer may be modified as follows.
본 출원인은 원 출원 발명의 발열층에 개선할 점(발열층을 만들기 위해 절연층 위에 카본블랙을 도포하고 경화시켜야 하는 까다로움, 발열품이 커질 경우 전체저항이 커져 더 많은 에너지가 필요함)이 있음을 발견하고, 많은 고민을 거듭한 끝에 원 출원발명이나 선행발명에 없는 전혀 새로운 발열층(100)을 개발하게 되었다.Applicant has improvements in the heat generating layer of the original application (the difficulty of applying and curing carbon black on the insulating layer to make the heat generating layer, and if the heat generating product becomes larger, the overall resistance is larger and requires more energy). After discovering, after a lot of worries have developed a completely new heating layer 100 that is not in the original application or prior invention.
도 6에 도시된 발열층(100)은 PAN계 탄소섬유(101)로 구성된다.The heat generating layer 100 shown in Figure 6 is composed of a PAN-based carbon fiber 101.
발열층(100)이 PAN계 탄소섬유(101)로 구성되므로, 발열층(100)을 만들기 위해 절연층(12, 도 2참조) 위에 카본블랙(CB, 도 3참조)을 도포하고 경화시킬 필요가 없다.Since the heat generating layer 100 is composed of the PAN-based carbon fiber 101, it is necessary to apply and harden carbon black (CB, see FIG. 3) on the insulating layer 12 (see FIG. 2) to make the heat generating layer 100. There is no.
PAN계 탄소섬유(101)은 전류가 흐를 수 있도록 서로 겹치게 무작위로 배치된다. PAN-based carbon fibers 101 are randomly arranged to overlap each other so that current can flow.
PAN계 탄소섬유(101)의 양을 조절하면 발열품의 단위 면적당 저항을 조절할 수 있다. 여기서, 바람직한 단위면적당 저항은 20~100Ω/□이다.By adjusting the amount of PAN-based carbon fiber 101 it is possible to adjust the resistance per unit area of the heating product. Here, preferable resistance per unit area is 20-100 kPa / square.
전원부(미도시)에서 공급된 전류는 제1전극(14a), 발열층(100), 제2전극(14b)을 흐른다. 이때, 저항체인 PAN계 탄소섬유(101)에서 열이 발생하여 발열품(10)이 따뜻해진다.The current supplied from the power supply unit (not shown) flows through the first electrode 14a, the heating layer 100, and the second electrode 14b. At this time, heat is generated in the PAN-based carbon fiber 101, which is a resistor, and the heat generating product 10 is warmed.
이하, 본 발명의 제2실시예에 따른 발열품을 설명한다.Hereinafter, a heat generating product according to a second embodiment of the present invention will be described.
도 7에 도시된 바와 같이, 본 발명의 제2실시예에 따른 플렉서블 발열품(20)은 의자시트이다.As shown in FIG. 7, the flexible heating product 20 according to the second embodiment of the present invention is a chair seat.
의자시트는 500mm×500mm의 크기를 가진다.The chair seat has a size of 500 mm x 500 mm.
본 발명의 제2실시예에 따른 발열품(20)은 제1실시예에 따른 발열품(10)과 발열층(200)을 제외하고는 모두 동일하다. 따라서, 발열층(200)에 대해서만 설명한다.The heat generating product 20 according to the second embodiment of the present invention is the same except for the heat generating product 10 and the heat generating layer 200 according to the first embodiment. Therefore, only the heat generating layer 200 will be described.
도 8에 도시된 바와 같이, 발열층(200)은 전류가 흐를 수 있게 서로 겹치게 무작위로 배치되어 혼합된, PAN계 탄소섬유(201)와 Pitch계 탄소섬유(202)로 구성된다.As shown in FIG. 8, the heat generating layer 200 includes a PAN-based carbon fiber 201 and a Pitch-based carbon fiber 202 which are randomly disposed and mixed to overlap each other so that current can flow.
발열층(200)이 PAN계 탄소섬유(201)와 Pitch계 탄소섬유(202)로 구성되므로, 발열층(200)을 만들기 위해, 절연층(12, 도 2참조) 위에 카본블랙(CB, 도 3참조)을 도포하고 경화시킬 필요가 없다.Since the heat generating layer 200 is composed of the PAN-based carbon fiber 201 and the Pitch-based carbon fiber 202, the carbon black (CB, FIG. 2) is formed on the insulating layer 12 (see FIG. 2) to make the heat generating layer 200. 3) need not be applied and cured.
PAN계 탄소섬유(201)는 Pitch계 탄소섬유(202)에 비해 저항이 높고, 가격은 저렴하다.The PAN-based carbon fiber 201 has a higher resistance and a lower price than the Pitch-based carbon fiber 202.
의자시트는 방석보다 커서, 발열층(200)의 전체면적이 방석의 발열층(100) 보다 크다. 따라서, 발열층(200)의 단위면적당 저항을 낮추면, 방석의 발열층(100)에 보내는 전류와 동일한 전류를 의자시트의 발열층(200)에 흘려보내도, 의자시트는 전체적으로 방석과 동일한 열량을 낼 수 있다. 즉, 방석을 발열시키는 에너지를 초과하지 않고도 의자시트를 발열시킬 수 있는 것이다.The chair seat is larger than the cushion, so that the entire area of the heating layer 200 is larger than the heating layer 100 of the cushion. Therefore, if the resistance per unit area of the heat generating layer 200 is lowered, even though the same current as that sent to the heat generating layer 100 of the cushion flows to the heat generating layer 200 of the seat, the seat is generally the same amount of heat as the cushion. I can make it. That is, the chair seat can be heated without exceeding the energy for heating the cushion.
이를 위해, PAN계 탄소섬유(201)에 저항이 낮은 Pitch계 탄소섬유(202)를 혼합하여 단위면적당 저항을 낮춘다. 여기서, 바람직한 단위면적당 저항은 10~50Ω/□이다. 이를 위해, PAN계 탄소섬유(201)와 Pitch계 탄소섬유(202)를 9:1로 혼합한다. 이렇게 PAN계 탄소섬유(201)에 저항이 낮은 Pitch계 탄소섬유(202)를 혼합하여 단위면적당 저항을 낮추는 것은 본 발명만의 핵심적인 특징이 있다.To this end, the PAN-based carbon fiber 202 is mixed with the Pitch-based carbon fiber 202 having low resistance to lower the resistance per unit area. Here, the preferable resistance per unit area is 10-50 GPa / square. To this end, the PAN-based carbon fiber 201 and the Pitch-based carbon fiber 202 are mixed at 9: 1. As such, the PAN-based carbon fiber 201 is mixed with a low-pitch carbon-based fiber 202 to lower the resistance per unit area.
물론, Pitch계 탄소섬유(202)를 사용하지 않고, PAN계 탄소섬유(201)의 양을 줄여서 단위면적당 저항을 낮출 수도 있다. 그러나 PAN계 탄소섬유(201)의 양을 너무 줄이면 PAN계 탄소섬유(201)가 서로 겹치지 않게 되어 자칫 단전될 수도 있다. 따라서, 발열품의 크기가 방석을 초과하면, 저항이 서로 다른 PAN계 탄소섬유(201)와 Pitch계 탄소섬유(202)를 혼합하여 단위면적당 저항을 조절해야 한다.Of course, without using the pitch-based carbon fiber 202, the amount of the PAN-based carbon fiber 201 can be reduced to lower the resistance per unit area. However, if the amount of the PAN-based carbon fiber 201 is reduced too much, the PAN-based carbon fiber 201 may not overlap each other and may be cut off. Therefore, when the size of the heating element exceeds the cushion, the resistance per unit area should be adjusted by mixing PAN-based carbon fibers 201 and Pitch-based carbon fibers 202 having different resistances.
전원부(미도시)에서 공급된 전류는 제1전극(14a), 발열층(200), 제2전극(14b)을 흐른다. 이때, 저항체인 PAN계 탄소섬유(201)와 Pitch계 탄소섬유(202)에서 열이 발생하여 발열품(20)이 따뜻해진다.The current supplied from the power supply unit (not shown) flows through the first electrode 14a, the heating layer 200, and the second electrode 14b. At this time, heat is generated in the PAN-based carbon fiber 201 and the Pitch-based carbon fiber 202 which are resistors, and the heat generating product 20 is warmed.
이하, 본 발명의 제3실시예에 따른 발열품을 설명한다.Hereinafter, a heat generating product according to a third embodiment of the present invention will be described.
도 9에 도시된 바와 같이, 본 발명의 제3실시예에 따른 플렉서블 발열품(30)은 침대시트이다.As shown in FIG. 9, the flexible heating product 30 according to the third embodiment of the present invention is a bed sheet.
침대시트는 1000mm×1500mm의 크기를 가진다.The bed sheet has a size of 1000 mm x 1500 mm.
본 발명의 제3실시예에 따른 발열품(30)은 제1실시예에 따른 발열품(10)과 발열층(300)을 제외하고는 모두 동일하다. 따라서, 발열층(300)에 대해서만 설명한다.The heat generating product 30 according to the third embodiment of the present invention is the same except for the heat generating product 10 and the heat generating layer 300 according to the first embodiment. Therefore, only the heat generating layer 300 will be described.
도 10에 도시된 바와 같이, 발열층(300)은 전류가 흐를 수 있게 서로 겹치게 무작위로 배치되어 혼합된, PAN계 탄소섬유(301)와 Pitch계 탄소섬유(302)로 구성된다.As shown in FIG. 10, the heating layer 300 includes a PAN-based carbon fiber 301 and a Pitch-based carbon fiber 302 which are randomly disposed and mixed to overlap each other so that current can flow.
발열층(300)이 PAN계 탄소섬유(301)와 Pitch계 탄소섬유(302)로 구성되므로, 발열층(300)을 만들기 위해, 절연층(12, 도 2참조) 위에 카본블랙(CB, 도 3참조)을 도포하고 경화시킬 필요가 없다.Since the heat generating layer 300 is composed of the PAN-based carbon fiber 301 and the Pitch-based carbon fiber 302, the carbon black (CB, FIG. 2) is formed on the insulating layer 12 (see FIG. 2) to make the heat-generating layer 300. 3) need not be applied and cured.
침대시트는 의자시트보다 커서, 발열층(300)의 전체면적이 의자시트의 발열층(200) 보다 크다. 따라서, 발열층(300)의 단위면적당 저항을 의자시트의 발열층(200)의 단위면적당 저항 보다 더 낮추면, 방석의 발열층(100)에 보내는 전류와 동일한 전류를 침대시트의 발열층(300)에 흘려보내도, 침대시트는 전체적으로 방석과 동일한 열량을 낼 수 있다. 즉, 방석을 발열시키는 에너지를 초과하지 않고도 침대시트를 발열시킬 수 있는 것이다.The bed sheet is larger than the chair seat, and the entire area of the heating layer 300 is larger than the heating layer 200 of the chair seat. Therefore, when the resistance per unit area of the heating layer 300 is lower than the resistance per unit area of the heating layer 200 of the chair seat, the heating layer 300 of the bed sheet has the same current as that sent to the heating layer 100 of the cushion. Even when spilled on, the bed sheet can produce the same calories as a cushion as a whole. That is, the bed sheet can be heated without exceeding the energy for heating the cushion.
이를 위해, PAN계 탄소섬유(301)에 저항이 낮은 Pitch계 탄소섬유(302)를 혼합하여 단위면적당 저항을 낮춘다. 여기서, 바람직한 단위면적당 저항은 1~30Ω/□이다. 이를 위해, PAN계 탄소섬유(201)와 Pitch계 탄소섬유(202)를 6:4로 혼합한다.To this end, the PAN-based carbon fiber 301 is mixed with a low-pitch carbon-based fiber 302 to lower the resistance per unit area. Here, preferable resistance per unit area is 1-30 kPa / square. To this end, the PAN-based carbon fibers 201 and the Pitch-based carbon fibers 202 are mixed at 6: 4.
전원부(미도시)에서 공급된 전류는 제1전극(14a), 발열층(300), 제2전극(14b)을 흐른다. 이때, 저항체인 PAN계 탄소섬유(301)와 Pitch계 탄소섬유(302)에서 열이 발생하여 발열품(30)이 따뜻해진다.Current supplied from the power supply unit (not shown) flows through the first electrode 14a, the heating layer 300, and the second electrode 14b. At this time, heat is generated in the PAN-based carbon fibers 301 and the Pitch-based carbon fibers 302 as the resistors, and thus the heat generating product 30 is warmed.

Claims (7)

  1. 플렉서블한 제1절연층;A flexible first insulating layer;
    플렉서블한 제2절연층;A second flexible insulating layer;
    상기 제1절연층과 제2절연층 사이에 개재된 플렉서블한 발열층; 및A flexible heating layer interposed between the first insulating layer and the second insulating layer; And
    상기 발열층에 부착된 플렉서블한 전극;을 포함하며,And a flexible electrode attached to the heating layer.
    상기 발열층은 서로 겹치게 무작위로 배치된 탄소섬유로 구성된 것을 특징으로 하는 플렉서블 발열품.The heating layer is a flexible heating element, characterized in that consisting of carbon fibers randomly arranged overlapping each other.
  2. 제1항에 있어서,The method of claim 1,
    상기 제1절연층 및 제2절연층은,The first insulating layer and the second insulating layer,
    절연기능 및 방수기능을 동시에 수행하는 것을 특징으로 하는 플렉서블 발열품.Flexible heating element, characterized in that to perform the insulation function and waterproof function at the same time.
  3. 제1항에 있어서,The method of claim 1,
    상기 발열층의 단위면적당 저항을 조절하여, 발열품의 크기가 달라져도 동일한 전류하에서 전체적으로 동일한 열량을 낼 수 있도록,By adjusting the resistance per unit area of the heating layer, even if the size of the heating product is different so that the same amount of heat as a whole under the same current
    상기 발열층은 상기 PAN계 탄소섬유만으로 구성되거나,The heat generating layer is composed of only the PAN-based carbon fiber,
    상기 발열층은 상기 PAN계 탄소섬유와 상기 Pitch계 탄소섬유이 혼합되어 구성된 것을 특징으로 하는 플렉서블 발열품.The heat generating layer is a flexible heating element, characterized in that the PAN-based carbon fibers and the pitch-based carbon fibers are mixed.
  4. 제3항에 있어서, 상기 플렉서블 발열품은 방석이며,The method of claim 3, wherein the flexible heating product is a cushion,
    상기 발열층은 서로 겹치게 무작위로 배치된 PAN계 탄소섬유로만 구성된 것을 특징으로 하는 플렉서블 발열품.The heat generating layer is a flexible heating product, characterized in that consisting of only PAN-based carbon fibers randomly arranged overlapping each other.
  5. 제3항에 있어서, 상기 단위 면적당 저항은,The method of claim 3, wherein the resistance per unit area,
    상기 PAN계 탄소섬유와 상기 Pitch계 탄소섬유의 비로 조절되는 것을 특징으로 하는 플렉서블 발열품.Flexible heating element, characterized in that controlled by the ratio of the PAN-based carbon fiber and the Pitch-based carbon fiber.
  6. 제5항에 있어서,The method of claim 5,
    상기 플렉서블 발열품은 의자시트이며,The flexible heating element is a chair seat,
    상기 발열층은 서로 겹치게 무작위로 배치된 PAN계 탄소섬유와 Pitch계 탄소섬유로 구성되며,The heat generating layer is composed of PAN-based carbon fibers and Pitch-based carbon fibers randomly arranged to overlap each other,
    상기 PAN계 탄소섬유 대 상기 Pitch계 탄소섬유의 비는 9:1인 것을 특징으로 하는 플렉서블 발열품.And a ratio of the PAN-based carbon fiber to the Pitch-based carbon fiber is 9: 1.
  7. 제5항에 있어서,The method of claim 5,
    상기 플렉서블 발열품은 침대시트이며,The flexible heating element is a bed sheet,
    상기 발열층은 서로 겹치게 무작위로 배치된 PAN계 탄소섬유와 Pitch계 탄소섬유로 구성되며,The heat generating layer is composed of PAN-based carbon fibers and Pitch-based carbon fibers randomly arranged to overlap each other,
    상기 PAN계 탄소섬유 대 상기 Pitch계 탄소섬유의 비는 6:4인 것을 특징으로 하는 플렉서블 발열품.The ratio of the PAN-based carbon fiber to the Pitch-based carbon fiber is 6: 4.
PCT/KR2017/000847 2016-01-29 2017-01-25 Flexible heating product WO2017131422A1 (en)

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