KR20180039335A - Woven flexible surface heating element controlled in the heat direction - Google Patents

Abstract

The present invention relates to a woven flexible surface heating element controlled in heat direction. The woven flexible surface heating element includes a heating layer laminated on one surface of the heating layer and formed by weaving metal heating fiber; and a reflective layer to radiate heat generated from one surface from the heating layer to the other surface. As a result, the heat radiated from the heating layer through the heating layer and the reflective layer is reflected through the reflective layer to control a heat direction. So, it is possible to achieve high heat efficiency and shorten heating time.

Description

[0001] The present invention relates to a woven flexible surface heating element controlled in a heat direction,

The present invention relates to a woven flexible heat generating element whose heat direction is controlled, more specifically, heat generated from a heat generating layer through the formation of a heat generating layer and a reflection layer is reflected through a reflecting layer to control the heat direction, The present invention relates to a woven flexible heat generating element having a thermal efficiency and capable of shortening a heating time.

Generally, a heating element that converts energy from electricity or gas into heat energy is divided into a linear heating element made of metal or ceramic wire, a bulk heating element such as graphite, and a plane heating element coated with a heating element on a flat electrode. In the planar heating element, a metallic, ceramic or carbon-based heating layer is coated on a planar metal electrode, and the upper and lower portions of the heating layer are sealed with an insulator.

In recent years, there has been a need to manufacture a flexible surface heating element having the shape of a curved surface rather than a flat surface, or capable of flexing flexibly during use. However, since there is a limitation in flexibility of the substrate having the surface heating element and flexibility of the heating material coated on the substrate, cracking or performance deterioration occurs when the surface heating element is manufactured so as to have flexibility. Or the heating material is fragile due to its brittleness, or there is a problem in the heat generating characteristic when the heating material is filled in the substrate using the mesh.

For example, a carbon-based electrode, which is expected to be a planar heating element, is oxidized at a high temperature and is brittle, easily cracking due to impact, and the planar heating element can not be used for a long time due to such a problem. In addition, when the far-infrared ceramic heat-generating body is coated on the metal substrate, there is a disadvantage that it can not be used when the bending of the surface heat-generating body is large due to the warp limit of the ceramic heat-generating body.

In order to overcome this problem, there is known a technique for manufacturing a surface heating element by weaving a conductive material into a line. There is known a method of weaving an area heating element by using a weaving yarn made by twisting a plain fiber and a metal fiber together, such as a 'surface heating element and its physical structure and manufacturing method' of Korean Patent Application Publication No. 10-2008-0090068. In addition, there is known a surface heating element technique in which conductivity is imparted by coating conductive carbon on the surface of a non-conductive polymer seal, such as "Korean Utility Model Registration Utility Model No. 20-2005-0011304".

However, in the case of such a conventional surface heating element, since heat is generated on both sides of the heating element, it is impossible to control the direction of the heat, so that the heat efficiency is low and the heating time is required. Accordingly, a planar heating element capable of controlling the heat flow of multiple layers is manufactured, and a planar heating element with high heat efficiency and applicable to various applications is obtained by manufacturing various patterns using high efficiency, various thermal direction control, and fiber weaving.

Korean Patent Application Publication No. 10-2009-0051511 Korea Patent Office Registration No. 10-1527362 Korea Patent Office Registration No. 10-1341959

Accordingly, it is an object of the present invention to provide a method of manufacturing a semiconductor light emitting device, in which heat emitted from a heat generating layer through a heat generating layer and a reflective layer is reflected through a reflective layer to control the heat direction, thereby achieving high thermal efficiency, To provide a woven flexible heat generating element.

The above-mentioned object is achieved by a heat-shrinkable laminate comprising: a heat generating layer formed by weaving metal heating fibers; And a reflective layer formed by weaving ceramic fibers that are laminated on one surface of the heating layer and reflect heat generated from one surface so that heat generated from the heating layer is emitted to the other surface. Is achieved by a heating element.

Here, the heating layer is formed by weaving the metal heating fibers in warp and weft, and the reflective layer is formed by weaving the ceramic fibers in warp and weft, and the heating layer and the reflective layer are bonded or stitched together .

Wherein the metal heating fibers are woven in warp and weft and the ceramic fibers are woven together by warping and weaving to integrally weave the heating layer and the reflecting layer, And the reflective layer has a larger arrangement area of the ceramic fibers than the heating layer.

The heat generating layer may include an inductive layer laminated on the other surface of the heat generating layer so that heat generated from the heat generating layer may be guided to the other surface, or heat generated from the heat generating layer toward the reflecting layer may be formed between the heat generating layer and the reflective layer. And an induction layer laminated to be guided to the other surface of the heat generating layer.

The material of the induction layer is selected from the group consisting of a metal having high thermal conductivity, carbon, a polymer, and a mixture thereof. The induction layer is formed of a single thin plate or a plurality of thin plates, Preferably, the heat generating layer has an arrangement area of the heat generating fibers within a range of 70 to 100%, and the reflective layer has an arrangement area of the ceramic fibers within a range of 70 to 100%.

The material of the heat generating fiber is selected from the group consisting of platinum (Pt), iron (Fe), nickel (Ni), aluminum (Al), copper (Cu), titanium (Ti), molybdenum (Mo) (Ag), Pd, Ru, Mg, Cr, Zn, T, Co, and alloys thereof. Preferably, the metal heating fibers are made of different metal materials or alloy materials and are woven. The material of the metal heating fibers made of alloy may be stainless steel or nichrome alone or together It is preferable that weaving is possible.

 The material of the ceramic fiber is preferably selected from the group consisting of glass fiber, heat-resistant polymer fiber, titanium oxide fiber, aluminum oxide fiber, zirconium oxide fiber, silicon carbide fiber, potassium titanate fiber and a mixture thereof.

According to the structure of the present invention described above, the heat emitted from the heat generating layer through the formation of the heat generating layer and the reflective layer can be reflected through the reflective layer to control the heat direction, thereby achieving high heat efficiency and shortening the heating time Can be obtained.

1 is an exploded perspective view of a woven flexible surface heating element according to a first embodiment of the present invention,
2 and 3 are front views of a heating element including an induction layer according to an embodiment of the present invention,
4 is a perspective view of a heating element according to the second embodiment.

When the object is heated by using the heating element, the direction of the heat flow is determined by the resistance of the heat, such that the direction of the heat flow is determined by the electrical resistance in the electricity. The thermal resistance is large in a substance having a large specific heat and small in a substance having a small specific heat. As a result, heat flows from a material with a high specific heat to a material with a low specific heat. When a substance is heated using a heating element, the object to be heated is usually low in temperature and large in specific heat. At this time, the heat flow flows from the heating element toward the heating object in terms of temperature, and tends to flow from the heating object to the heating element in terms of thermal resistance. In this case, the high specific heat of the object to be heated has the effect of suppressing the heat diffused from the heat generating element, and the heat generating efficiency is lowered. The present invention seeks to control the flow of heat to the heat generating body, which is generated due to the high specific heat of the object to be heated, by using the woven structure of the fibers. In other words, by introducing the heat flow from the heating object to the heating element in the upper part of the heating element into the fiber structure having the higher specific heat in the lower part of the heating element, the multi-layered fiber structure is returned from the lower part of the heating element to the upper part of the heating object to improve the heat transfer efficiency It is. This multi-layered structure can be fabricated in a multi-layered manner by using the multi-layer weaving technique at the time of weaving the fibers, and the metal heating fibers at the upper layer and the lower heat- It is also possible to manufacture and integrate. The technical solution of the present invention is based on this principle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the planar heating element 100 has a multilayer structure including a heating layer 110 and a reflective layer 130. The heating layer 110 is formed by weaving the metal heating fibers 111, which are made of a metal that generates heat, in a thin line. As the weaving method, a general weaving method such as a suture, a twill, Can be used without limitation. The material of the metal heating fibers 111 may be platinum, iron, nickel, aluminum, copper, titanium, molybdenum, gold, Is selected from the group consisting of silver (Ag), palladium (Pd), ruthenium (Ru), magnesium (Mg), chromium (Cr), zinc (Zn), tungsten (W), cobalt It is preferable to prepare and weave the plurality of metal heating fibers 111 made of different metals or alloy materials. In particular, stainless steel or nichrome can be applied most preferably to the metal heating fiber 111 made of an alloy. Stainless steel and nichrome can be prepared singly or together and weaving.

A reflective layer 130 is laminated on one surface of the heat-generating layer 110 on the surface and bonded to the heat-generating layer 110. The reflective layer 130 is laminated on one surface of the heat generating layer 110 to allow heat generated from the heat generating layer 110 to be emitted to the other surface of the heat generating layer 110 and to reflect heat generated from one surface of the heat generating layer 110 The ceramic fibers 131 are formed by weaving. Here, the ceramic fibers 131 are made of a thin line-shaped ceramic material that reflects heat without absorbing heat. The ceramic fibers 131 are formed by using a weaving method such as a sagittal, twill, And weaving. The material of the ceramic fiber 131 for reflecting heat is preferably selected from the group consisting of glass fiber, heat-resistant polymer fiber, titanium oxide fiber, aluminum oxide fiber, zirconium oxide fiber, silicon carbide fiber, potassium titanate fiber and a mixture thereof But is not limited thereto.

The planar heating element 100 may be formed by laminating the induction layer 150 together with the heating layer 110 and the reflective layer 130 as shown in FIGS. The induction layer 150 is formed on the heat generating layer 110 so as to induce heat on the other surface of the heat generating layer 110 so that heat generated in the heat generating layer 110 can be more easily discharged to the other surface of the heat generating layer 110. [ do. At this time, the induction layer 150 may be stacked on the other surface of the heat generating layer 110 opposite to the surface coupled with the reflective layer 130 to guide heat to the other surface of the heat generating layer 110. Alternatively, an induction layer may be laminated between the heating layer 110 and the reflective layer 130. This is because heat generated from the heating layer 110 toward the reflective layer 130 is guided to the other surface of the heating layer 110 . That is, the induction layer 150 is stacked on the other surface of the heat generating layer 110 or stacked between the heat generating layer 110 and the reflective layer 130 to induce heat so as to discharge heat to the other surface of the heat generating layer 110 . The inductive layer 150 may also provide the effect of making the heat distribution uniform, and may couple the inductive layer 150 to only a specific location to control the flow of heat.

The material of the induction layer 150 is preferably selected from the group consisting of metal, carbon, polymer and mixtures thereof having high thermal conductivity. 2, the induction layer 150 may be a single thin plate having a size similar to that of the heat generating layer 110 and may be coupled to the central region of the heat generating layer 110, May be spaced apart from each other at a predetermined interval to be coupled to the heating layer 110.

One side of the reflective layer 130 is coupled to the heat generating layer 110 and an insulating layer can be coupled to the other side of the reflective layer 130, which is opposite to the heat generating layer 110. The insulating layer serves to insulate heat generated from the heat generating layer 110 and is formed through a weaving process using insulating fibers made of an insulating material as warp and weft yarns. The insulating layer functions to block heat so that the user does not feel heat generated from the heating layer 110.

The heat generating layer 110 and the reflective layer 130 of the present invention may be formed in the following two structures. 1, the heat generating layer 110 is formed by weaving the metal heating fibers 111 in an oblique or woven form, and the reflecting layer 130 is also formed by cutting the ceramic fibers 130 ) Are woven in warp and weft. The heating layer 110 and the reflective layer 130 may be bonded together using an adhesive, or may be bonded by sewing to form the heating body 100. When the heating element 100 is formed by the structure of the first embodiment, the layers of the metal heating fibers 111 and the ceramic fibers 131 are clearly divided so that the heat generated from the metal heating fibers 111 is separated from the heating layer 100, As shown in FIG.

Unlike the first embodiment, the woven flexible heat-generating element 200 according to the second embodiment is obtained by weaving the metal heat-generating fibers 211 in an oblique and a weft manner as shown in Fig. 4, and arranging the ceramic fibers 231 in warp and weft The heat generating layer 210 and the reflective layer 230 are integrally woven together by woven together with the metal heating fibers 211. [ The area of the woven heat generating layer 210 is larger than that of the reflecting layer 230 and the area of the reflecting layer 230 is larger than that of the ceramic fiber 231 Weave so that the arrangement area is wide. Although the heat generating layer 211 includes a part of the ceramic fibers 231, the heat generating layer 211 has a large arrangement area to discharge heat. On the contrary, the reflecting layer 230 is formed of the metal heating fibers 211 The ceramic fiber 231 has a large area to reflect heat emitted from the heat generating layer 210 to the other surface of the heat generating layer 210. Here, the heat generating layer 210 is formed such that the area of the metal heating fibers 211 is 70 to 100%, and the area of the ceramic fibers 231 is 70 to 100% (200). This is because it is difficult to control the direction of heat emitted from the metal heating fibers 211 through the ceramic fibers 231 when the respective layout areas are less than 70%.

In the case of a conventional planar heating element, since heat is generated on both sides of the heating element, it is impossible to control the direction of the heat, so that the heat efficiency is low and a long heating time is required. However, in the case of the woven flexible heat generating elements 100 and 200 according to the present invention, heat generated from the heat generating layers 110 and 210 through the heat generating layers 110 and 210 and the reflective layers 130 and 230 is absorbed by the reflective layers 130 and 130, 230 so that the heat direction can be controlled, thereby achieving a high thermal efficiency and shortening the heating time. In addition, since the woven soft surface heaters 100 and 200 according to the present invention are formed by weaving the metal heating fibers 111 and 211 and the ceramic fibers 131 and 231, the heating elements 100 and 200 are formed, Can be improved, mechanical durability and electrical characteristics can be improved.

100, 200: heating element
110, 210: heating layer
111, 211: metal heating fiber
130, 230: reflective layer
131, 231: Ceramic fiber
150: induction layer

Claims (12)

In a woven flexible heat generating element having a controlled column direction,
A heating layer formed by woven metal heating fibers;
And a reflective layer formed by weaving ceramic fibers that are laminated on one surface of the heating layer and reflect heat generated from one surface so that heat generated from the heating layer is emitted to the other surface. Heating element. The method according to claim 1,
Wherein the heat generating layer is formed by weaving the metal heating fibers in warp and weft,
Wherein the reflective layer is formed by weaving the ceramic fibers in warp and weft,
Wherein the heating layer and the reflective layer are bonded by bonding or sewing. The method according to claim 1,
The metal heating fibers are woven in warp and weft, and the ceramic fibers are woven together with warp and weft to integrally weave the heating layer and the reflective layer,
Wherein the heating layer has a larger arrangement area of the metal heating fibers than the reflective layer, and the reflective layer has a larger arrangement area of the ceramic fibers than the heating layer. The method according to claim 1,
And an induction layer laminated on the other surface of the heating layer so that heat generated from the heating layer is guided to the other surface of the heating layer. The method according to claim 1,
And an induction layer laminated between the heat generating layer and the reflective layer so that heat generated from the heat generating layer toward the reflective layer is led to the other surface of the heat generating layer. The method according to any one of claims 4 to 5,
Wherein the material of the induction layer is selected from the group consisting of a metal having high thermal conductivity, carbon, a polymer, and a mixture thereof. The method according to any one of claims 4 to 5,
Wherein the induction layer is bonded to the heating layer by a single thin plate or a plurality of thin plates spaced apart at regular intervals. The method according to claim 1,
Wherein the heat generating layer has an arrangement area of the metal heating fibers within a range of 70 to 100% and an arrangement area of the ceramic fibers is within a range of 70 to 100%. Woven flexible flat heating element. The method according to claim 1,
The material of the heat generating fiber is selected from the group consisting of platinum (Pt), iron (Fe), nickel (Ni), aluminum (Al), copper (Cu), titanium (Ti), molybdenum (Mo) (Ag), palladium (Pd), ruthenium (Ru), magnesium (Mg), chromium (Cr), zinc (Zn), tungsten (W), cobalt A thermally controlled woven flexible surface heating element. 10. The method of claim 9,
Wherein the plurality of the metal heating fibers are made of different metal materials or alloy materials and are woven. 10. The method of claim 9,
Characterized in that the material of the metal heating fiber made of an alloy is prepared by weaving stainless steel or nichrome alone or in combination. The method according to claim 1,
Wherein the ceramic fiber material is selected from the group consisting of glass fibers, heat-resistant polymer fibers, titanium oxide fibers, aluminum oxide fibers, zirconium oxide fibers, silicon carbide fibers, potassium titanate fibers and mixtures thereof. Controlled woven flexible surface heating element.

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