KR101636783B1 - Heating element for offsetting electromagnetic waves - Google Patents

Abstract

The present invention relates to a heating flat element for offsetting an electromagnetic wave which includes a coating layer formed on a surface of a fabric mesh to generate a far infrared ray and an electromagnetic wave offset part for preventing electromagnetic waves from being generated. A heating flat element for offsetting an electromagnetic wave according to the present invention includes a mesh fabric including a fabric mesh formed by weaving a plurality of traversal and longitudinal fabric threads, a first electrode line formed right of the fabric mesh in parallel to the longitudinal thread and a second electrode line formed left of the fabric mesh in parallel to the traversal thread; an insulating layer formed on upper and lower surfaces of the mesh fabric; and an electromagnetic wave offset part formed on the insulating layer, wherein the electromagnetic wave offset part includes at least conductive wire formed in parallel to the traversal thread, a fourth electrode line formed right of the conductive wire in parallel to the first electrode line, and an insulating film formed on upper and lower surfaces of the offset layer. A resistance value of the fabric mesh is greater than that of the conductive wire, and the second and third electrode lines are electrically connected to each other, so that current flows in the order of the fourth, third, second and first electrode lines or the first, second, third and fourth electrode lines.

Description

{Heating element for offsetting electromagnetic waves}

The present invention relates to an electromagnetic wave-shielding planar heating element in which a carbon coating layer is formed on the surface of a fiber net so that far-infrared rays are emitted and electromagnetic waves are hardly generated by the electromagnetic wave canceling portion.

The ordinary surface heating element which is heated by electricity is not hygienic because it does not pollute the air, and it is easy to control the temperature and there is no noise, so it is necessary to heat the mat or pad, bed mattress, warm blanket or blankets, And residential heating devices such as air conditioners.

In addition, it can be used for heating of commercial buildings such as offices and shops, industrial heating devices such as workshops, warehouses, barracks, various industrial heating devices, agricultural facilities such as vinyl houses and agricultural product drying systems, Freezing prevention devices that can be used in various fields, such as leisure, cold weather, household appliances, anti-fogging devices for mirrors and glass, health assistants, and livestock.

Conventionally, a heating wire such as nichrome has been used as a heat source of such an area heating element. However, since electric current flows continuously through the heating wire in a plane heating element made of a heating wire such as nichrome, there is a disadvantage that when one of the heating wire is short-circuited, electricity can not be supplied and the plane heating element can not be used. In addition, in a conventional planar heating element using a heating wire such as nichrome, there is a risk of fire due to a sudden increase in electric resistance and overheating when the heating wire is short-circuited. Therefore, in order to prevent a short-circuit of the heating wire, the surface of the heating wire or the heating wire is completely insulated by an electric insulator having a sufficient thickness. However, when such a perfect insulation is performed, the heat conduction characteristic is lowered, .

In addition, since the planar heating element using a heating wire such as nichrome is a structure in which only the corresponding portion of the heating wire is heated, the temperature distribution of the plane heating element is uneven.

In order to solve the above problems, the present applicant has disclosed a network heating element and a manufacturing method thereof by Korean Patent Registration No. 10-1316762. The mesh heating element is a mesh heating element for impregnating a mixture of an electrode wire formed by twisting a plurality of wire wires and a mesh fabric woven by twisting a plurality of fiber yarns, And both side surfaces in the transverse direction.

However, in the above-mentioned mesh heating element, there is a problem that the connection between the electric wire supplying the electric power to the polar line and the polar line is not stable, so that a short circuit is frequently generated between the polar wire and the electric wire, and the electric safety state such as the short-

In addition, a small amount of electromagnetic wave is generated in the mesh heating element, and a consumer tends to hesitate to use a product made of the mesh heating element.

Thus, there has been introduced a technique of canceling electromagnetic waves by arranging two planar heat generating elements vertically and reversing the current flow directions of the planar heat generating elements disposed up and down.

However, since the technique of canceling the electromagnetic waves uses two surface heat emission elements, heat is generated in both the upper and lower sides and overheated frequently, and the manufacturing cost is excessively increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide an offset layer having an electrical resistance value much smaller than the electrical resistance value of a mesh fabric, An object of the present invention is to provide an electromagnetic wave shielding plane heating element in which most of heat is generated, electromagnetic waves generated from a mesh cloth are canceled, and an electrode wire and an electric wire are electrically stably coupled.

According to an aspect of the present invention, there is provided an electromagnetic shielding plane heating element comprising: a plurality of weft yarns and a plurality of warp yarns woven in a mesh structure to form a fiber mesh; a first polar line is formed on the right side of the fiber mesh, And a second polar line is formed on the left side of the fiber mesh side by side with the inclination, and a carbon coating layer is formed on the surface of the fiber mesh; An insulating layer formed on an upper surface and a lower surface of the mesh cloth; And an electromagnetic wave canceling part formed on the insulating layer, wherein the electromagnetic wave canceling part has at least one conductive line formed in parallel with the weft, and a fourth polarity line is formed on the right side of the conductive line, A canceling layer formed on the left side of the conductive line to form a third polar line along the second polar line; And an insulation film formed on the upper and lower surfaces of the canceling layer, wherein a resistance value of the fiber mesh is larger than a resistance value of the conductive line, and the third polarity line and the second polarity line are electrically connected to each other, The fourth polarity line, the third polarity line, the second polarity line and the first polarity line, or flows in the order of the first polarity line, the second polarity line, the third polarity line and the fourth polarity line.

And a plurality of fiber yarns are provided on the canceling layer in a direction perpendicular to the conductive lines to form a mesh structure.

Wherein a part of the insulating layer located on the upper surface and the lower surface of the second polar line is removed and one end of the second wire is connected to the second polar line, A part of the insulating film located on the upper surface and the lower surface of the third polar line is removed and the other end of the second electric wire is connected to the third polar wire and the other end of the third polar wire is connected to the other end A third insulating portion may be formed.

One end of the second electric wire is connected to the second electric wire in a second annular shape, the second electric wire and the second electric wire are soldered, and the other end of the second electric wire is connected to the third electric wire in a second annular shape And the second ring and the third polar line can be soldered.

An insulating tape may be formed on upper and lower ends of the insulating layer or the insulating film.

The present invention is characterized in that heat is not generated in the offset layer but most of the heat is generated in the mesh cloth, so that there is no fear of overheating, the temperature can be easily controlled, the configuration can be simplified, There is an effect of being electrically coupled in a stable manner.

In addition, a carbon coating layer is formed on the surface of the fiber net so that far-infrared rays are radiated, and an electromagnetic wave canceling portion is provided, so that electromagnetic waves hardly occur.

1 is a perspective view showing an electromagnetic wave canceling plane heating element according to the present invention.
2 is an exploded perspective view of an electromagnetic wave-canceling surface heating element according to the present invention.
3 is a schematic view showing a process of manufacturing a mesh fabric having an insulating layer according to the present invention.
4 is a schematic view showing a manufacturing process of an electromagnetic wave canceller according to the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a perspective view showing an electromagnetic wave shielding plane heating element according to the present invention, and FIG. 2 is an exploded perspective view showing an electromagnetic wave shielding plane heating element according to the present invention.

The electromagnetic shielding plane heating element according to the present invention is characterized in that a plurality of weft yarns 11 and warp yarns 12 are woven in a mesh structure to form a fiber mesh 13 and a first polar line 15 is formed on the right side of the fiber mesh 13 And the second pole line 16 is formed on the left side of the fiber mesh 13 side by side with the slope 12 and the carbon fiber coating 13 is formed on the surface of the fiber mesh 13. [ 10); An insulating layer 20 formed on the top and bottom surfaces of the mesh fabric 10; And an electromagnetic wave canceller 50 formed on the insulating layer 20. The electromagnetic wave canceller 50 includes at least one conductive wire 61 formed alongside the weft 11, A fourth polar line 68 is formed on the right side of the conductive line 61 on the right side and a third polar line 67 is formed on the left side of the conductive line 61 in parallel with the second polar line 16, Layer 60; And an insulation film 70 formed on the upper and lower surfaces of the canceling layer 60. The resistance value of the fiber mesh 13 is larger than the resistance value of the conductive line 61, The second polar line 16 is electrically connected so that the current flows in the order of the fourth polar line 68, the third polar line 67, the second polar line 16 and the first polar line 15, The second polarity line 15, the second polarity line 16, the third polarity line 67 and the fourth polarity line 68 in this order.

The electromagnetic wave cancellation surface heating element according to another embodiment of the present invention can have a carbon heating line in the transverse direction instead of the weft yarns 11 and the warp yarns 12 having the carbon coating layer formed on the surface thereof, May be greater than the resistance value of the line (61). That is, a plurality of carbon heating wires are formed in the transverse direction, a first polar line 15 is formed on the right side of the carbon heating wire in a direction perpendicular to the carbon heating wire, and a second polar wire 16 is formed on the left side of the carbon heating wire A heating portion formed in a vertical direction of the carbon heating line; An insulating layer 20 formed on the upper surface and the lower surface of the heat generating portion; And an electromagnetic wave canceller 50 formed on the insulating layer 20. The electromagnetic wave canceller 50 includes at least one conductive wire 61 formed in parallel with the carbon heating wire, 61 are formed on the left side of the conductive line 61 and the third polar line 67 is formed on the left side of the conductive line 61 in parallel with the second polar line 16, (60); And an insulation film (70) formed on the upper and lower surfaces of the canceling layer (60), wherein a resistance value of the carbon heating wire is larger than a resistance value of the conductive wire (61) The polarized line 16 is connected electrically so that the current flows in the order of the fourth polar line 68, the third polar line 67, the second polar line 16 and the first polar line 15, or the first polar line 15 , The second polar line 16, the third polar line 67, and the fourth polar line 68 in this order.

FIG. 3 is a schematic view showing a manufacturing process of a mesh cloth formed on upper and lower surfaces of an insulating layer according to the present invention.

The mesh fabric 10 includes a fiber mesh 13, a first polar line 15 and a second polar line 16 on which a carbon coating layer is formed.

A plurality of weft yarns 11 and warp yarns 12 are woven in a netted structure to form a fiber mesh 13. The weft yarns 11 and the warp yarns 12 are used as weft yarns and warp yarns, Structure. As the fiber yarn, various materials such as cotton yarn, simulated yarn, silk yarn, marathon, blend yarn, or synthetic yarn can be used.

At least one first pole line 15 is formed on the right side of the fiber mesh 13 and at least one second pole line 16 is formed on the left side of the fiber mesh 13 side by side with the slope 12. [ The first polar line 15 and the second polar line 16 are formed by twisting thin wires and the first polar line 15 and the second polar line 16 serving to supply electric power are formed in addition to the wire The number of the first polarized line 15 and the second polarized line 16 disposed may be determined according to the allowable capacity such as the voltage and the calorific value, do.

At this time, since a plurality of first pole lines 15 and second pole lines 16 located on the right and left sides of the fiber mesh 13 also correspond to warps, they are woven like the weft yarns 11 to form a net structure as a whole. The right side and the left side of the fiber mesh 13 become tighter due to the plurality of first polar line 15 and the second polar line 16.

The fiber net 13 formed with the first polar line 15 on the right side and the second polar line 16 on the left side is impregnated with the carbon and / or nano carbon mixture and then dried, so that the fiber net 13, 15 and the second polar line 16 are formed. The above mixture is described in detail in Registration No. 10-1316762 (filament heating element and its manufacturing method), in which the present applicant has been patented in the Korean Intellectual Property Office. As the mixture, various mixtures including carbon and / or nano-carbon may be used in addition to the patented invention of the present applicant. At this time, if carbon fiber is used as the weft yarn 11 and the warp yarn 12, the weft yarn 11, the warp yarn 12, the first polar line 15 and the second polar yarn 16 are woven to form a fiber mesh 13 Does not need to be impregnated with the carbon and / or nano-carbon mixture, so that the carbon coating layer is not formed on the surfaces of the first polar line 15 and the second polar line 16, 13 is replaced by a fiber mesh 13 woven with carbon fibers.

A carbon heating line may be formed in the transverse direction instead of the weft yarn 11 in which the carbon coating layer is formed on the surface, and a carbon heating line may be formed in the longitudinal direction in place of the warp 11. The heating portion may include a carbon heating wire, a first polar line (15), and a second polar line (16). A first pole line 15 is formed in a direction perpendicular to the right side of the carbon heating line and a second pole line 16 is formed in a direction perpendicular to the left side of the carbon heating line. At this time, the insulating layer 20 is formed on the upper surface and the lower surface of the heat-generating portion. The carbon and / or nano-carbon mixture is pattern-printed on the upper surface of the insulating layer 20 located below, And may be combined with the insulating layer 20 positioned on the upper side after locating the first polar line 15 and the second polar line on the right and left sides of the carbon heating line. The resistance value of the carbon heating wire is much larger than the resistance value of the conductive wire 61 (30 times or more).

In addition, the mesh cloth 10 and the insulating layer 20 according to the present invention may be implemented by replacing the conventional surface heating elements of various types. At this time, the resistance value of the area heating element is much larger than the resistance value of the conductive line 61 (30 times or more).

An insulating layer 20 is formed on the top and bottom surfaces of the mesh cloth 10 and the insulating layer 20 is formed by placing a polyurethane film on the top and bottom surfaces of the mesh cloth 10 and pressing them while applying heat , An adhesive may be applied between the mesh cloth 10 and the polyurethane film. Alternatively, the insulating layer 20 may be formed by melting and kneading the polyurethane resin between the polyurethane film and molding the polyurethane film positioned above and below the mesh cloth 10. For the formation of the insulating layer 20, various films capable of withstanding heat such as a polyethylene film may be used in addition to the polyurethane film, depending on the use.

A part of the insulating layer 20 located on the upper surface and the lower surface of the first polarized line 15 is removed to connect the first polarized line 15 to the first polarized line 15, A part of the carbon coating layer to be formed is removed. At this time, the insulating layer 20 may be melted using a soldering iron or sprayed hot air to a part of the insulating layer 20, and the carbon coating layer may be removed by scraping the surface of the first polar line 15 with a knife.

The ends of the first wires 30 are connected to the first plurality of poles 15 so as to form a first loop 31. The first loop 31 and the first pole 15 may be soldered to improve the electrical connection and the coupling strength between the first loop 31 and the first pole 15. The polyurethane resin is melted and bonded to form the first insulation portion 35 for insulation between the first lead wire 30 and the first lead wire 15 connected thereto. The first insulating portion 35 is preferably made of the same resin as the insulating layer 20.

When the temperature of the mesh cloth 10 reaches the set value, the bimetal B formed on one side of the first wire 30 cuts off the power. The bimetal (B) can be fixed to the upper surface of the insulating layer (20) with a resin having the same material as that of the insulating layer (20).

In order to connect one end of the second wire 40 to the second polar wire 16, a part of the insulating layer 20 located on the upper and lower surfaces of the second polar wire 16 is removed and a second polar wire 16 A part of the carbon coating layer formed on the surface of the carbon coating layer is removed. At this time, the insulating layer 20 may be melted by hot air spray or a soldering iron on a part of the insulating layer 20, and the carbon coating layer may be removed by scraping the surface of the second polar line 15 with a knife.

And one end of the second wire 40 is connected to the second plurality of poles 16 so as to be formed in the shape of a second ring 41. [ The second loop 41 and the second pole 16 can be soldered to improve the electrical connection and coupling strength of the second loop 41 and the second pole 16. The second insulation portion 45 is formed by melting and bonding the polyurethane resin for insulation between the one end of the connected second wire 40 and the second insulation film 16. The second insulating portion 45 is preferably made of the same resin as the insulating layer 20.

An insulating tape 49 is formed on the upper and lower ends of the insulating layer 20. When the pressing roller is passed while spraying hot air between the insulating layer 20 and the insulating tape 49, Or the insulating layer 20 can be melted and firmly adhered to each other.

4 is a schematic view showing a manufacturing process of the electromagnetic wave canceller according to the present invention.

The electromagnetic wave canceller 50 formed on the insulating layer 20 includes the canceling layer 60 and the insulating film 70 and the canceling layer 60 includes the conductive line 61 and the fourth polar line 68, And a third pole line 67.

At least one conductive line 61 is formed in parallel with the weft yarn 11 and a fourth polar line 68 is formed on the right side of the conductive line 61 in parallel with the first polar line 15, A third polar line 67 is formed in parallel with the second polar line 16 on the left side and a fourth polar line 68 and a third polar line 67 are formed by twisting thin wire, Nickel, chrome, and nichrome, which are good in electrical conductivity, may be used for the quadrupole line 68 and the third polar line 67. The conductive line 61 may have a low electrical resistance value A line of the same material as that of the fourth polarity line 68 and the third polar line 67 can be used and the number of the conductive lines 61 is determined according to the allowable capacity such as the voltage of the mesh cloth 10 and the calorific value. The resistance value of the fiber net 13 is larger than the resistance value of the conductive line 61 so that the number of the conductive lines 61 can be made smaller than the number of the weft yarns 11 of the fiber net 13.

At this time, a plurality of vertical fiber yarns and / or vertical conductive lines may be added to the canceling layer 60 in a direction perpendicular to the conductive lines 61 to form a net structure, and a plurality of horizontal fibers Yarn may be added.

An insulating film 70 is formed on the upper surface and the lower surface of the canceling layer 60. The insulating film 70 is formed by pressing the polyurethane film on the upper and lower surfaces of the canceling layer 60 while applying heat thereto , An adhesive may be applied between the canceling layer 60 and the polyurethane film. Alternatively, the insulating film 70 may be formed by melting and melting the polyurethane-based resin between the polyurethane-based film and molding the polyurethane-based film positioned above and below the offsetting layer 60. In addition to the polyurethane film for forming the insulating film 70, various films capable of withstanding heat such as a polyethylene film may be used depending on the use.

A part of the insulating film 70 located on the upper surface and the lower surface of the third polar line 67 is removed to connect the second electric wire 40 to the third polar line 67. [ At this time, the insulating film 70 may be melted by blowing hot air to a part of the insulating film 70 or using the soldering iron.

And the other end of the second wire 40 is connected to a plurality of third pole lines 67 so as to be formed in the shape of a second ring 41. The second loop 41 and the third pole line 67 may be soldered to improve the electrical connection and the coupling strength between the second loop 41 and the third pole line 67. [ A polyurethane resin is melted and bonded to form the third insulation part 55 for insulation between the other end of the connected second wire 40 and the third insulation film 67. [ The third insulating portion 35 is preferably made of the same material as the insulating film 70.

In order to connect the fourth wire 44 to the fourth polar wire 68, a part of the insulating film 70 located on the upper and lower surfaces of the fourth polar wire 68 is removed. At this time, the insulating film 70 may be melted by blowing hot air to a part of the insulating film 70 or using the soldering iron.

And the end of the fourth wire 44 is connected to a plurality of fourth pole lines 68 to form a fourth loop 51. The fourth loop 51 and the fourth pole line 68 may be soldered to improve the electrical connection and the coupling strength between the fourth loop 51 and the fourth pole line 68. A polyurethane resin is melted and bonded to form a fourth insulating portion 65 for insulation between the connected fourth wire 44 and the fourth polar wire 68. It is preferable that the fourth insulating portion 65 be made of the same material as the insulating film 70.

 An insulating tape 49 is formed on the upper and lower ends of the insulating film 70. When the pressing roller is passed while blowing hot air between the insulating film 70 and the insulating tape 49, Or the insulating film 70 can be melted and firmly adhered to each other.

The operation of the planar heating element according to the present invention will now be described.

When power is supplied through the first wire 30 and the fourth wire 44, the third pole line 67 and the second pole line 16 are electrically connected to each other so that current flows through the fourth pole line 68, The first polarized line 15, the second polarized line 16, the third polarized line 67, and the fourth polarized line 68 (in the order of the triple pole line 67, the second polar line 16, and the first polarized line 15) ). At this time, the first electric wire 30 is electrically connected to a plurality of first polar lines 15 from which the carbon coating layer is removed, and is insulated by the first insulation part 35, and the fourth electric wire 44 is electrically connected to a plurality of Is electrically connected to the fourth polarity line 68 and is insulated by the fourth insulation portion 65 so that the supplied power is stably transmitted to the first polarity line 15 and the fourth polarity line 16. [

If current is supplied to the fourth wire 44, the current flows from the front to the back at the fourth polar line 68 and flows to the third polar line 67 along the conductive line 61. At this time, since the electric resistance value of the conductive line 61 is much smaller than the resistance value of the fiber mesh 13, the conductive line 61 hardly generates heat.

At the third polarity line 67, current flows from the back to the front and then through the second wire 40 to the second pole 16. At the second pole line 16 the current flows from the front to the back along the fiber mesh 13 to the first pole 15. At this time, since the electrical resistance value of the fiber mesh 13 is much larger (30 times or more) than the resistance value of the conductive wire 61, almost all the heat is generated in the fiber mesh 13. At the first polar line 15, the current flows from the back to the front and then exits through the first wire 30.

That is, the flow direction of the electric current is almost opposite to that of the conductive line 61 and the fiber mesh 13, the fourth polar line 68 and the first polar line 15, the third polar line 67 and the second polar line 16 All the electromagnetic waves generated in the mesh fabric 10 are canceled by the electromagnetic wave canceling part 50 and the heat is generated in the mesh fabric 10 rather than the electromagnetic wave canceling part 50. Therefore, Can be solved. Even if current is supplied to the first electric wire 30, the same effect can be expected.

The mesh cloth 10 having the carbon coating layer formed on its surface by the current supplied to the first polar line 15 or the fourth polar line 68 uniformly generates heat and emits a large amount of far infrared rays, (50) cancel the electromagnetic waves generated from the mesh cloth (10) without heating.

The above description is merely illustrative of the technical idea of the present invention, and various modifications and changes may be made without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention belongs. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of the claims should be construed as being included in the scope of the present invention.

10: mesh fabric 11: weft
12: Slope 13: Fiber mesh
15: first pole line 16: second pole line
20: Insulation layer 30: 1st wire
31: first ring 35: first insulation part
40: second wire 41: second ring
45: second insulation part 44: fourth wire
49: Insulation tape 51: 4th ring
50 Electromagnetic wave canceling part 55: Third insulating part
60: canceling layer 61: conductive line
65: fourth insulation part 67: third polar line
68: fourth pole line 70: insulating film
B: Bimetal

Claims (5)

A plurality of weft yarns 11 and warp yarns 12 are woven in a mesh structure to form a fiber mesh 13 and a first polar line 15 is formed on the right side of the fiber mesh 13 side by side with the warp yarns 12 And a second pole line 16 is formed on the left side of the fiber mesh 13 in parallel with the slope 12 and a carbon coating layer is formed on the surface of the fiber mesh 13;
An insulating layer 20 formed on the top and bottom surfaces of the mesh cloth 10; And
And an electromagnetic wave canceller (50) formed on the insulating layer (20)
The electromagnetic wave canceller (50)
At least one conductive line 61 is formed in parallel with the weft yarn 11 and a fourth pole line 68 is formed on the right side of the conductive line 61 in parallel with the first polar line 15, (60) having a third polar line (67) formed on the left side of the second polarized line (61) side by side with the second polarized line (16); And
And an insulating film (70) formed on upper and lower surfaces of the canceling layer (60)
The resistance value of the fiber mesh 13 is larger than the resistance value of the conductive line 61 and the third polar line 67 and the second polar line 16 are electrically connected to each other so that the current flows through the fourth polar line 68 ), The third polar line (67), the second polar line (16) and the first polar line (15), or in the order of the first polar line (15), the second polar line (16) And an anode line (68) in this order.
The method according to claim 1,
Wherein the canceling layer (60) is provided with a plurality of fiber yarns in a direction perpendicular to the conductive line (61) to form a mesh structure.
3. The method according to claim 1 or 2,
A part of the insulating layer 20 located on the upper surface and the lower surface of the second polar line 16 is removed and one end of the second electric wire 40 is connected to the second polar line 16, A second insulating portion 45 is formed at one end of the first wire 16 and the second wire 40 and a part of the insulating film 70 located at the top and bottom surfaces of the third polar wire 67 is removed The other end of the second wire 40 is connected to the third polar line 67 and the third insulation part 55 is formed at the other end of the third polar wire 67 and the second wire 40 And an electromagnetic wave canceling plane heating element.
The method of claim 3,
One end of the second wire 40 is connected to the second pole 16 in the form of a second ring 41 and the second ring 41 and the second pole 16 are soldered, And the other end of the electric wire 40 is connected to the third polar line 67 in the form of a second loop 41 and the second loop 41 and the third polar line 67 are soldered. Plane heating element.
A plurality of carbon heating wires are formed in a transverse direction, a first polar line 15 is formed on the right side of the carbon heating wire in a direction perpendicular to the carbon heating wire, and a second polar wire 16 is formed on the left side of the carbon heating wire, A heat generating unit formed in a vertical direction of the heat generating unit;
An insulating layer 20 formed on the upper surface and the lower surface of the heat generating portion; And
And an electromagnetic wave canceller (50) formed on the insulating layer (20)
The electromagnetic wave canceller (50)
At least one conductive line 61 is formed in parallel to the carbon heating line and a fourth polar line 68 is formed on the right side of the conductive line 61 along with the first polar line 15 and the conductive line 61 A canceling layer 60 on the left side of which the third pole line 67 is formed alongside the second pole line 16; And
And an insulating film (70) formed on upper and lower surfaces of the canceling layer (60)
The resistance value of the carbon heating wire is larger than the resistance value of the conductive wire 61 and the third polar line 67 and the second polar line 16 are electrically connected to each other so that the current flows through the fourth polar line 68, The first polarized line 15, the second polarized line 16, the third polarized line 67, and the fourth polarized line 68 (in the order of the triple pole line 67, the second polar line 16, and the first polarized line 15) ) Flows in this order.

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