KR101091096B1 - woven heating device which conductive threads are binded - Google Patents

Abstract

The present invention relates to a fabric heating element having a fixed structure of the conductive yarn, the fabric heating element of the present invention can be bent or folded freely because it forms a structure in which the common yarn, carbon yarn and copper wire woven. In other words, the fabric heating element has excellent flexibility. The reason why the fabric heating element of the present invention can have such excellent flexibility is that the fabric heating element is a woven structure and at the same time the copper wires are firmly fixed at both sides by the weaving fixing part, so the copper heating elements are not moved even when the fabric heating element is bent. Because it can be maintained.

Carbon, exothermic, weave, cotton

Description

Woven heating device which conductive threads are binded}

The present invention relates to a fabric heating element formed by a weaving method using carbon yarn.

Conventional heating system or heating system, which is used in general, can be ondol type, hot water circulation type, electric heater type, but due to various problems such as difficulty of installation method, increase of maintenance cost, electromagnetic wave generation and indoor oxygen combustion, etc. There has been an increasing demand for new ways of heating.

It is greatly improved the problems of the conventional heating system, promotes the efficiency of power consumption, and is evaluated to be beneficial to the human body through not only heating function but also sterilization, antibacterial and deodorizing effect through radiation of far infrared rays. Research and application of carbon-based heating elements have been actively conducted in recent years. Representative approaches of such a heating system using carbon include a film type planar heating element and a carbon fiber weaving heating element using carbon fiber yarn.

The common film type heating element prints carbon fiber on the insulating paper by printing screen method, forms electrodes on both ends of each carbon fiber, finishes the insulating paper on top of the carbon fiber and electrode, and compresses the lower insulating paper and the upper insulating paper. It is made by making.

In the case of the woven heating element, there is a method of manufacturing a heating element by impregnating liquid carbon after weaving in a plane with the warp yarns inclined with the weft yarn.

In the case of the conventional film method or impregnated weaving method, the deformation or breakage of the carbon material in the printed or impregnated form may be easily caused by bending or friction. Because of the deterioration, it is inevitable to take a very solid coating method with a hard material when insulating coating in order to prevent the external force is applied to the carbon film or impregnated carbon yarn. That is, the conventional methods use a method of hardly coating a very hard material such as film coating so that the internal components never change. Therefore, the flexibility of the heating element is inevitably deteriorated. Therefore, the conventional products are limited in their use so that they can be used only on flat or uncurved surfaces. In addition, there is a limit to using high temperature heat. When high temperature heat is produced, the temperature expansion coefficient between components is different due to severe temperature change inside, which causes peeling phenomenon, which causes problems in thermal properties, durability and safety.

An object of the present invention is to provide a fabric heating element excellent in flexibility can be bent or folded freely and the position of the copper wire is fixed, as a result of which the spacing between the carbon yarns is kept constant and improved durability as a heating element.

The object of the present invention is to weave the common yarns and carbon yarns as the weft, the common yarns are inclined, and the heat generation unit is arranged at regular intervals, and the carbon yarns to flow a current to the carbon yarns Conductive parts connected to the carbon yarns and formed by weaving conductive yarns and weaving common yarns as weft yarns, and are disposed on both sides of each of the conductive portions, and have a larger number of slopes than other portions by adding a common yarn as a slope. A weaving fixing part which is woven with the weft of the general yarn to form a dense weave portion on each side of each of the conductive parts, wherein the conductive yarns of the conductive part are disposed at an inclination and the general yarns are arranged as the weft yarn to weave the conductive part. And each of the conductive yarns is in close contact with each other without adjacent gaps. The conductive yarns are in close contact with adjacent conductive yarns without a gap to form a band structure having a predetermined width, and the conductive yarns of the conductive portion move laterally by the dense weave structure of the weaving fixing part. It is achieved by a fabric heating element having a fixing structure of the conductive yarns, characterized in that to fix the conductive yarns on both sides of the conductive portion to prevent.

In order to achieve the above object, it is preferable that the conductive yarns of the conductive portion be a thread made of metal.

In addition, the conductive yarns of the conductive portion is a metal yarn, and each conductive yarn is preferably formed by twisting a plurality of fine metal yarns.

In addition, it is preferable to form a carbon yarn spacing maintaining portion that forms a relatively dense weave structure compared to other portions by adding a slope of the common yarn to the portion of the carbon yarn and the common yarn located in the center of the conductive portion.

Fabric heating element according to the present invention can be bent or folded freely because the common yarn, carbon yarn and copper wire to form a woven structure. In other words, the fabric heating element has excellent flexibility.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the fabric heating element having a fixing structure of the conductive yarns according to a preferred embodiment of the present invention.

1 is a plan view showing a fabric heating element having a fixing structure of a conductive yarn according to a preferred embodiment of the present invention, Figure 2 is an enlarged view of a portion of FIG. 1 and 2, the fabric heating element (1) (hereinafter referred to as 'fabric heating element (1)') having a fixed structure of the conductive yarns according to a preferred embodiment of the present invention is disposed carbon And a heat generating part 10 for generating heat, a conductive part 20 for supplying current to the carbon yarn 4, a weaving fixing part 30 for fixing the conductive part 20, and a carbon yarn spacing maintaining part 40. It is configured by.

The heat generating portion 10 is formed by weaving the general yarns (2) and the carbon yarns (4) are weft yarns and the general yarns (3) are inclined to form a planar fabric structure, the carbon yarns (4) are constant in the longitudinal direction Each is spaced apart at intervals. When current flows through the carbon yarns 4, radiant heat is released from the carbon yarns 4. The carbon yarns 4 are arranged at regular intervals so that uniform heat is generated on the entire surface of the heat generating unit 10. Therefore, in order to give a difference in the amount of heat generated for each position of the heat generating unit 10, the interval between the carbon yarns 4 may be changed.

The conductive part 20 is connected to the carbon yarns 4 of the heat generating unit 10 to supply current to the carbon yarns 4. The conductive portion 20 is formed by weaving a plurality of conductive yarns arranged in warp yarns and made of weft yarns of the general yarn 2 extending from the heat generating portion 10. The conductive yarn of the conductive portion 20 may be a metal yarn which is a thread of a metallic material. In this embodiment, the copper wire 5 was used as the metal yarn. Each copper wire constituting the inclination of the conductive portion 20 of the woven structure is made by twisting the fine copper microfibers are free to bend. Each of the copper wires 5 constituting the inclination of the conductive portion 20 of the woven structure is in close contact with each other without being spaced apart from the adjacent copper wires 5. Accordingly, the copper wires 5 of the conductive portion 20 are not separated from the entire copper wire 5 but are in a state in which all the copper wires 5 are integrally connected. The copper wires 5 constituting the inclination of the conductive portion 20 are in close contact with each other without a gap to form a band structure having a predetermined width. The conductive parts 20 are connected to a power source and formed as a positive electrode (+) or a negative electrode (−).

The weaving fixing parts 30 are formed on both sides of the conductive portion 20, respectively, and weave the warp yarns of the general yarns 2 and the general yarns 3 to form a strip structure having a predetermined width. will be. The weaving fixing part 30 forms a dense weave structure by adding more warp yarns with more inclined yarns 3 than the heating part 10 based on the same width. Since the weaving fixing parts 30 are inclined closely together with the warp yarns of the general yarns 3 to weave the weft yarns of the general yarns 2 to form a dense weave structure, the frictional force between the warp yarns and the weft yarns increases and thus It doesn't move well Therefore, a pair of weaving fixing parts 30 are formed adjacent to both sides of the conductive part 20 in succession to serve to trap the copper wires 5 of the conductive part 20 from both sides. That is, the weaving fixing parts 30 formed on both sides of the conductive part 20 block the copper wires 5 from both sides so that the copper wires 5 of the conductive part 20 do not move laterally. The position of the copper wire 5 is fixed.

Carbon yarn spacing maintaining unit 40 is to maintain the spacing of the carbon yarns (4) of the heat generating section 10 as the slope of the general yarn (3) is added to the relative yarns more than the surroundings are densely packed. Woven together with the weft of 2) is formed into a band structure having a predetermined width to have a dense weave structure. The carbon yarn spacing holding portion 40 extends in a direction orthogonal to the extending direction of the carbon yarn 4. The heat generating portion 10 of the fabric heating element 1 is the same amount of heat is generated in the same area of the heat generating portion 10 when the carbon yarns (4) are formed and maintained at uniform intervals throughout the fabric heating element (1) Uniform heating is possible.

Hereinafter will be described the operation and effect of the fabric heating element having a fixed structure of the conductive yarn in accordance with a preferred embodiment of the present invention.

When voltage is applied to the conductive wires connected to the conductive portion 20 of the fabric heating element 1, some of the conductive portions 20 become positive electrodes, and the conductive portions 20 adjacent to the conductive portions 20 of the positive electrode are negative. It becomes a pole. Therefore, a current flows through the carbon yarns 4 connected between the conductive parts 20. When the carbon yarns 4 are current flowing, the carbon yarns 4 generate heat to emit radiant heat.

3 is a conceptual diagram showing that the heat generation amount for each position is changed when the conductive yarn of the fabric heating element is out of position. As shown in FIG. 3, the length of the carbon yarns 4a and 4b between the opposing copper wires 5a and 5b increases when the copper wire 5b moves out of position and laterally in the fabric heating element. ) Or decrease (L2). Increasing or decreasing the length of the carbon yarns 4a and 4b results in a change in the resistance value of each of the carbon yarns 4a and 4b, thereby changing the amount of heat generated by the respective carbon yarns 4a and 4b. As a result, the fabric heating element does not generate uniform heat generation over the entire area.

① In the fabric heating element 1 according to the present invention, since the position of the copper wires 5 of the conductive portion 20 is fixed by the weaving fixing portion 30, the copper wires 5 of the conductive portion 20 are not out of position. The fabric heating element 1 is able to generate a uniform heat generation over the entire area.

② The fabric heating element 1 according to the present invention is the copper wire (5) constituting the warp yarns of the general yarn (2) by the weaving densely by closely contacting the copper wires (5) of the conductive portion 20 to each other. Tighten firmly to hold the weft. Therefore, since the frictional force between the copper wire 5 and the weft thread is large, it is difficult for the copper wire 5 to slide from the weft yarn, and as a result, the copper wire 5 is difficult to move out of position.

③ fabric heating element 1 according to the present invention because the copper wires (5) of the conductive portion 20 is in close contact with each other to form a structure in which all the copper wires (5) are all connected integrally. And since the weaving fixing parts 30 on both sides of the conductive portion 20 to fix the copper wires (5) on both sides, the copper wires (5) in close contact with each other is maintained. When the weaving fixing parts 30 do not fix both sides of the copper wires 5, when an external force is applied to the fabric heating element 1, the close contact state of the copper wires 5 of the conductive part 20 is likely to be broken.

Since the copper wires 5 form an integral part, the sum of the cross-sectional areas of the copper wires 5 becomes the area of the conductive part 20, and when the area of the conductive part 20 is large, the resistance value of the conductive part 20 is low. 20) Almost no voltage drop occurs. Therefore, the total number of the copper wires 5 of the conductive portion 20 of the fabric heating element 1 according to the present invention is a predetermined number or more to reduce the resistance value of the conductive portion 20 to reduce the voltage at the conductive portion 20. Rarely occurs. When a voltage drop occurs in the conductive portion 20, a different voltage is given to each of the carbon yarns 4 continuously arranged in the extending direction of the conductive portion 20, and eventually, in the total area of the fabric heating element 1 There is no uniform heating.

④ Since the weaving fixing part 30 is also woven with the carbon yarns 4 to form a dense weave structure, it functions to fix the positions of the carbon yarns 4 and the copper wires with the carbon yarns 4. ) Has the effect of strengthening the connection.

In conclusion, the fabric heating element 1 of the present invention can be bent or folded freely because the general yarns (2, 3) and carbon yarns (4) and copper wires (5) form a woven structure. That is, the flexibility of the fabric heating element (1) is excellent. The reason why the fabric heating element 1 of the present invention can have such excellent flexibility is that the fabric heating element 1 is a woven structure and at the same time the copper wires 5 are firmly fixed at both sides by the weaving fixing parts 30. This is because the copper wires 5 can be kept in place even when the fabric heating element 1 is bent.

Fabric heating element (1) of the present invention can be used as a component that generates heat as it is without adding a configuration, or may be used by forming an insulating coating layer between the fabric layer on either side or one side of the fabric heating element (1). have. In addition to the configuration can be added and modified in various ways.

1 is a plan view showing a fabric heating element having a fixed structure of a conductive yarn according to a preferred embodiment of the present invention,

2 is an enlarged view of a portion of FIG. 1.

3 is a conceptual view showing that the heat generation amount for each position is changed when the conductive yarn is out of position.

Claims (3)

A heat generating unit which is woven with general yarns and carbon yarns and is inclined with general yarns, wherein the carbon yarns are separated from each other; Conductive parts connected to the carbon yarns in order to allow a current to flow through the carbon yarns of the heat generating unit, and formed by weaving the conductive yarns made of metal as an inclination and the weft yarns as general yarns; The weaving fixing part which is located on both sides of each of the conductive parts and adds a general yarn as a slope, and a relatively large number of warp yarns are woven with the weft yarn of the general yarn to form dense weave parts on both sides of each of the conductive parts. Including, The conductive yarns of the conductive portion are disposed at an inclination, and the common yarns are arranged by weaving to form the conductive portion, and each of the conductive yarns has a predetermined width in close contact with each other without adjacent gaps. Forms the structure of the band, The weaving fixing part fixes the conductive yarns of the conductive part on both sides, thereby preventing the conductive yarns of the conductive part from moving laterally by the dense weave structure of the weaving fixing part, Fabric heating element having a fixed structure of the conductive yarns, characterized in that the insulating coating layer is formed on both sides of the entire planar weave structure including the heat generating portion and the conductive portions and the weave fixing portion. The fabric heating element according to claim 1, wherein the conductive yarns of the conductive part are made of metal, and each conductive yarn is formed by twisting a plurality of fine metal yarns. The method of claim 1, wherein the carbon yarn and the common yarn between the conductive parts is added to the inclined portion of the common yarn to form a carbon yarn spacing maintaining portion to form a relatively woven structure compared to the other portion is formed. Fabric heating element having a fixed structure of the conductive yarn.

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