KR20060056833A - Heating fabric and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a planar heating element, and in particular, in a planar heating element having a fabric-like heating part woven by a fibrous yarn and a string, a pair of conductive parts for supplying power to one side of the fabric-type heating part has a predetermined value as a plain weave. Weaved to be spaced apart, the pair of conductive parts are provided in a plurality of rows of electrode yarns are woven in a plurality of rows, heat generating yarns that are woven in a row at a predetermined interval interweave as a string, interweave and woven so as to conduct electricity with the pair of conductive parts The heat generating yarn is woven by being interwoven into the fiber yarn in a zigzag shape at regular intervals on the flat fabric on the other side of the pair of conductive parts, and one end of the heating yarn is woven by being mixed with one of the conductive parts of the pair of conductive parts. And the other end of the heat generating yarn is configured to achieve an electrical non-connection relationship with the one conductive portion. A non-woven jumping portion having a width greater than or equal to the width of the conductive portion is provided, and the electromagnetic wave is canceled by additionally enjoying the damping effect of the magnetic field in accordance with the coupling configuration of the one-sided array portion and the zigzag shaping of the carbon yarn. In this way, the health of the user can be maximized.

Description

Planar heating element and manufacturing method thereof

1 is a plan view showing a conventional planar heating element.

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

Figure 3 is an enlarged perspective view showing the exothermic yarn of the planar heating element according to the present invention.

Figure 4 is a plan view showing an embodiment of a planar heating element according to the present invention.

5 to 7 are enlarged structural views of C, D, and E portions of FIG. 4 to show the connection and non-connection state of the conductive portion and the heat generating division of the planar heating element according to the present invention; and

FIG. 8 is an enlarged structural diagram of part G of FIG. 7 for illustrating in more detail a connection and a non-connection state of a conductive part and a heat generating division part of a planar heating element according to the present invention; and

9 is a cross-sectional view of the heat generating yarn and fiber yarn according to the line F-F of FIG. 7.

<Explanation of symbols for main parts of the drawings>

  10,20,40: planar heating element 21: seed line

  22: raw line 23: fever

  25: power line 27: electrode thread

  28: crimp terminal

  30: heating section 32: conductive part

  33: heat generating portion 34: connection portion

  35: fiber yarn 41: reinforced crimp terminal

 101: jumper 103: insulating material

 110: second jumping connection

The present invention relates to a planar heating element and a method of manufacturing the same, in order to supply power of the planar heating element woven with carbon and fiber yarns woven with a string and a blade, tin-plated wires on both ends of the planar heating element and fiber yarns The present invention relates to a planar heating element having a conductive part for supplying power to the planar heating element, and a manufacturing method thereof.

In general, the planar heating element is formed by applying a conductive material having a certain resistance, such as carbon, to the insulator in a predetermined pattern, and applying a current thereto to generate heat, and the resistance wire such as carbon wire or nichrome wire, There is a fabric heating plate system that generates heat by arranging seeds or blades and applying current thereto.

As shown in FIG. 1, a predetermined fiber yarn (natural fiber yarn or synthetic fiber yarn) is densely woven into a seed line 21 and a blade line 22 at regular intervals, and a heat generating yarn 30 such as carbon fiber yarn is formed. It is arranged at a predetermined interval on the blade line 22 and the metal yarn 27 is woven with a blade line 22 on both sides of the fabric heating plate with a blade line and then connected to the power line 25 in series at its ends to supply power. Carbon fiber yarns and nichrome wires, which are mainly used for planar heating elements, are not fused with lead, and thus, at the ends of the conductive portion 32 made of metal yarns 27 using a crimping terminal 18 of a crimp type that is crimped on both sides. It is connected to the power supply line 25 via the double-sided crimp type terminal 28.

The connection by the double-sided terminal crimping as described above is made easy to conduct electricity connection with the conductive portion formed by the weaving of the metal yarn, and the disconnection occurs due to the crimping, so that even if the terminal crimping does not make a complete crimping contact with the contact portion The resistance increases, the heat generation is separated from the crimp terminal, and the terminal is crimped by crimping the edge of the terminal. Problems are caused.

In addition, in order to connect the power supply line 15 and the heat-generating yarn 13 in parallel, the connection points connected in parallel are connected to the connecting main wire 14 by a heat-resistant wire, etc. In addition to reducing productivity in the production of household electrical appliances, the direction of current flow between neighboring heating wire groups and groups is the same as a cause of amplifying electromagnetic waves.

An object of the present invention is to solve the above problems, but weaved by a string and a blade, but a part of the string or the blade is woven with a heating yarn, the heating yarn weaving only to the inside of a predetermined space at both ends of the weaving heat supply amount for supplying power The ends are of the same length as that of the woven line or the string of the woven fabric, and when weaving, a certain width (spaced apart from the heat generating apple) of both ends of the woven fabric is one of a plurality of woven or woven wires having a high electrical conductivity. It is possible to form a planar heating element formed by weaving with a good electrode yarn metal wire such as a plated copper wire, a silver wire, an aluminum wire, and to connect the power wires drawn out to one end of the woven fabric integrally.

A metal wire made of an electrode yarn is woven to a certain width on one side of the woven fabric, and one end of the heating yarn is woven together in one direction together with the heating yarn connected in parallel to each other so that the heating yarn is connected in parallel. Contact defects and amplification of electromagnetic waves are suppressed, and the work process is simplified when manufacturing products, which improves productivity and secures product reliability.

Next, a preferred embodiment in which the woven fabric, the heat generating yarn, and the power supply line are woven together according to the present invention will be described in detail with reference to the drawings.

First, as shown in Figs. 4 to 9, the first embodiment of the planar heating element according to the present invention is woven with a string 22 and a blade 21 made of a predetermined fiber yarn 35 is a fabric-type heating part The fiber yarn formed of (33) and used at this time is a natural fiber yarn or polyester filament, glass yarn, or the like of approximately twenty-four sum.

In addition, the planar heating element 20 according to the present application, but the heat yarn 23 and the fiber yarn 35 are woven, when the heat yarn 23 is employed as a blade 21, the fiber yarn 35 is a blade (21) 10 to 15 mm after being woven into the heating yarn 23 is woven in a zigzag form woven with a blade 21.

In addition, a pair of conductive parts 32 for applying power is woven at one side of the fabric-type heat generating part 33 at regular intervals in a plain weave.

In addition, the pair of conductive parts 32 are provided in a plurality of rows of electrode yarns 27 are woven in a row direction, the heat generating yarns 23, which are woven in multiple rows at a predetermined interval intersect as a string, interweave the pair The conductive portion 32 is woven so that it can conduct electricity.

In addition, the heat generating yarn 23 is interweaved and woven into the fiber yarn 35 in a zigzag shape at regular intervals on the flat fabric on the other side of the pair of conductive portions 32.

In addition, one end 23a of the heat generating yarn 23 is interwoven and woven into one of the conductive parts 32 of the pair of conductive parts 32.

In addition, the other end 23b of the heat-generating yarn 23 is jumped to be woven non-woven beyond the width of the one conductive portion 32 so as to achieve an electrical non-connection relationship with the one conductive portion 32. The part 101 is provided.

The exothermic yarn 23 preferably employs a carbon yarn impregnated with an acrylic resin in an emulsion form. However, when a current flows through a resistance such as nichrome wire or tungsten coated with an acrylic resin, or a heat-resistant silicon-coated carbon yarn, Even if the generated heating wire is employed, the current field of neighboring wires can be mutually alternated to offset the electromagnetic field. Therefore, any wire can be employed, and the opposite sides of the heat dissipating yarns 23a and 23b can be employed. U-turn portion 105 to make a U-turn at a certain distance to form a zigzag shape of the, is configured as a jumped non-woven second jumping connecting portion (110).

In addition, the heat generating yarn 23 is provided by cross winding the outer surface of the heat generating yarn 23 with a plurality of woven fiber yarns 71 having high electric resistance.

In addition, both surfaces of the fabric-type heat generating portion 33 is thermally compressed by an electrically insulating resin film.

In addition, the electrode yarn is a blade, 2-3 pairs of electrode yarn pairs (32a) is made of two to three alternately repeatedly arranged weaving electrode yarn group of 3-5 times repeatedly with the fiber yarn pair (33a) between one It consists of an electroconductive part of.

In other words, a pair of conductive parts 32 for supplying power to one side of the fabric-type heat generating part 33 is provided by weaving a multi-row with a string 22, and the one conductive part 32 has an electrode yarn ( The heat generating division part 30 is woven so that the connection part 34 in which the 27 and the heat generating division part 30 are woven electrically connects the conductive part 32 and the fabric type heating part 33. The part 32 has a jumping portion 101 in which the electrode yarn 27 and the heat generating end portion 30 are non-woven to generate heat so that the one conductive portion 32 and the fabric-type heat generating portion 33 are electrically disconnected. The end portion 30 is woven after being woven.

In addition, the non-woven jumping portion 101 is brought into contact with a band-shaped insulating material 103 made of an insulating material such as fragmented planar vinyl or Teflon tape.

In addition, on the opposite side of the heat generating end portion 30, a second jump connecting portion 110 which is nonwoven and jumped with the fiber yarn 35 is provided between the heat generating yarn 23 and the adjacent heat generating yarn.

Here, the heat generating portion 33 is formed by weaving the heat generating yarn 23 and the fiber yarn 35 into the blade 21 to form a heat generating portion 33, the jumping portion 101 successive to the heat generating portion 33 ) Is a woven fiber fiber only, copper wire, tin-plated copper wire to form the pair of conductive portions (32). Electrode yarns 27, such as a silver wire and an aluminum wire, are woven with the seed wires 22 to form the conductive portion 32.

In addition, the end portion 36 of the fabric successive to the conductive portion 32 is the same as in the case of the fabric-type heating portion 33, except for the heat-generating yarn 23, weaved only with a fiber yarn and is conventional to prevent loosening of the woven material. Weaving is done according to the processing method of phosphorus weaving.

At this time, the end 30 of the heat-generating yarn 22 is woven with a blade when weaving the space 29 and the conductive portion 32 to electrically connect the conductive portion 32 and the heat generating portion 33. The diameter of the electrode yarn which is a heating yarn used for weaving can be selected according to the characteristics and design requirements of the product. However, considering the convenience of weaving, the diameter of the electrode yarn is preferably about 0.08 mm.

In addition, in order to improve the convenience of work and mechanical performance such as tensile strength, the heating yarn 23 is wound around the heating yarn 23 using a yarn 71 made of polyester yarn, cotton yarn or the like. . At this time, the thickness of the winding yarn used may be different depending on the diameter of the electrode yarn, but is thinner than the electrode yarn is suitable, and the heat generating yarn end 30 connected to the conductive portion 32 does not wind the yarn.

In order to supply power to the planar heating element woven as described above, the connection with the conductive portion 32 uses a crimp terminal 28 having a cylindrical shape in which a longitudinal cutout is formed as shown in FIG. ) Cuts through the woven portion of both sides of the conductive portion 32 of the fabric heating plate, and then inserts and secures the power line 25 between the crimp terminals 28 into which one end of the conductive portion 32 is inserted. Then, the power line 25 and the crimping terminal 28 are crimped using a tool such as a terminal crimping machine to be connected to a power supply for supplying power to the planar heating element. In addition, the heat generating yarn of the planar heating element and the conductive portion 32 are connected by weaving, so that electricity supplied from the power line is supplied to the heat generating yarn through the conductive portion to generate heat. In order to secure the electrical connection of the heat generating yarn 23 and the conductive portion, the connection portion between the heat generating yarn 23 and the conductive portion 30 has a tubular reinforcement crimp terminal having a cutout in a known longitudinal direction as shown in FIG. 41 is employed in each of the upper and lower conductive portions 23 in opposite directions to compress the electrical insulation connection. Of course, you may employ | adopt and crimp in the same direction.

On the other hand, in the manufacturing method related to the exothermic yarn, as the first step, the exothermic yarn is provided by passing the carbon roving yarn wound around the carbon yarn through an acrylic resin emulsion impregnation tank capable of ultrasonic generation, and then dried. At this time, the carbon roving yarn is provided as a reinforcement heating yarn 23 whose outer surface is surrounded by a plurality of soluble fiber yarns 71 having high electric resistance values that are wound in both directions.

Here, the heat generating yarn is suitable for coating the acrylic resin as a liquid finishing agent to the bundle of carbon yarn bundle of at least 100 carbon yarns, the acrylic in the upper open impregnation tank for storing the acrylic liquid resin is effectively cavitation 5- It is preferable to set it as the frequency of 50KHz. In particular, it was found that a bundle of carbon yarns without gaps or bubbles was produced at 40 KHz.

Of course, as shown in FIG. 3, the heating yarn 23 is provided by cross winding both sides of the heating yarn 23 with a plurality of woven fiber yarns 71 having high electrical resistance, such a manufacturing method By the general carbon yarn, the tensile strength such as elongation, compression deformation, and bending deformation compared to the synthetic fiber yarn is increased by more than 50kgf in the state in which the synthetic fiber yarn 71 is twisted twice in the bundle of 2K cords. It turned out.

Next, as a second process, the knitting machine is operated so that the above-described heat generating yarn 23 provides the intermittently woven fabric-like heat generating portion 33 so that the jumping portion 101 and the second jumping connecting portion 110 are operated. Perform the process to prepare.

Next, as a third step, the ocher layer is applied to both surfaces of the fabric-type heat generating portion 33 thus provided through an impregnating tank impregnated with ocher and acrylic resin, and then dried with a drier.

Next, as a fourth step, by providing a planar heating element reinforced with flexural strength by thermally compressing an electrically insulating resin film on both surfaces of the fabric-type heating unit 33, such a planar heating element is formed into an electric sheet, an electric mat, or the like. For thermocompression coating using synthetic resins conventionally used in the field for use as heating elements of chanan electric appliances, it can be added to those skilled in the art according to the characteristics of electric appliances for chanan. According to the configuration of one side of the zigzag shape of the conductive portion and the carbon company, the electromagnetic wave is additionally canceled by additionally enjoying the attenuation effect of the magnetic field, so that the user's health can be maintained as much as possible.

Planar heating element according to the present invention made as described above by connecting the plurality of heat generating yarns to form a woven conductive portion for supplying power can be easily connected to the heat generating yarns and can eliminate the failure such as disconnection due to the connection of the product It secures reliability, reduces the cost of heating equipment using planar heating elements, and improves the quality of products by simplifying the process for connecting the heating element and the power line and reducing the after-care cost.

Claims (10)

In the planar heating element provided with a fabric-like heating portion woven with a string and a string, A pair of conductive parts that are woven in a plurality of rows with a plurality of electrode yarns in a plain weave in a predetermined direction in a spiral direction for power supply to one side of the fabric-type heating part, The conductive parts are intersected and interwoven as a string at predetermined intervals, and are woven in multiple rows so as to conduct electricity with the pair of conductive parts, and are woven in a zigzag shape at regular intervals on the other side of the pair of conductive parts. With pyrogenic heat, One of the pair of conductive parts is interwoven with one end of the heat generating yarn and woven and connected to a power line connected to the conductive part, and the other end of the pair of conductive parts has the other end of the heat generating yarn. Is electrically connected to each other, and has a jumper to which the heat generating yarn is jumped so as to be woven beyond a width of the one conductive part of the other to achieve an electrical non-connected relationship with the one conductive part. Planar heating element. The method of claim 1, The exothermic yarn is a planar heating element, characterized in that the carbon yarn impregnated with an acrylic resin of the emulsion form. The method of claim 1, The U-turning portion that makes a U-turn at a predetermined distance to form a zig-zag-shaped portion on opposite sides of the heat generating yarn is constituted as a jumped and nonwoven second jumping connection portion.  The method according to claim 1 and 2, The heat generating yarn is a planar heating element, characterized in that it is provided by a plurality of cross-winding the outer surface of the heat generating yarn in a plurality of synthetic fiber yarns with high electrical resistance. The method of claim 1, Both sides of the fabric-type heating portion is a planar heating element, characterized in that the thermal insulation resin film is thermally compressed. The method of claim 1, The electrode yarn is a blade, characterized in that a pair of two or three electrode yarns are composed of one conductive portion by repeatedly forming the electrode yarn group of 3-5 alternating array weaving between two to three fiber yarn pairs. Planar heating element. In the method for producing a planar heating element by weaving a fabric-like heating portion with a fibrous seed and a string, When weaving the fabric-type heating part, weave a pair of conductive parts for power supply to one side of the fabric-type heating part at regular intervals in plain weave, and the pair of conductive parts are woven in a plurality of rows so that a plurality of electrode yarns are woven in a plurality of rows. Weaving and weaving so as to conduct electricity with the pair of conductive portions so as to interweave the heat generating yarns that are woven in multiple rows at predetermined intervals as a string. Weaving the heat-weaving yarn mixed with the fiber yarn in a zigzag shape at regular intervals to the flat fabric on the other side of the pair of conductive parts, One end of the heat generating yarn is woven to be mixed with one of the conductive parts of the pair of conductive parts, And weaving again the non-woven jumped portion of a width greater than the width of the one conductive portion so as to achieve an electrical non-connection relationship with the other conductive portion of the heat generating yarn. The method of claim 7, wherein The heating yarn is prepared by passing the carbon roving yarn in which the carbon yarn is wound through the acrylic resin emulsion impregnation tank capable of generating ultrasonic waves, and the outer surface is formed by a plurality of constituent fibers having a high electric resistance value in which the carbon roving yarn is wound in both directions. Method for producing a planar heating element, characterized in that provided as a wrapped reinforcement heating yarn. The method according to claim 7 or 8, And a step of providing a jumper and a second jumping connection part by operating the loom to provide the fabric-like heating part intermittently woven by the heat generating yarn according to the first step. The method of claim 9, After applying the ocher layer on both sides of the fabric-type heating portion, the coating machine having an impregnation tank impregnated with ocher and acrylic resin, and drying with a dryer, heat the electrically insulating resin film on both sides of the fabric-type heating portion Method for producing a planar heating element that is reinforced by bending strength by compression.

Images