KR20100019158A - Heating wire preventing electromagnetic wave and static electricity, and fabricating method thereof - Google Patents

Abstract

PURPOSE: A heating wire and a manufacturing method thereof are provided to remove a harmful electromagnetic wave by preventing a magnetic field on an electric heating wire. CONSTITUTION: A heating wire(100) includes a heating line(110), a shielding wire(120), and a coating(130). The heating line is comprised of first and third heating lines. The first heating line is positioned on the center of the heating wire. The second and third heating lines are positioned on both sides of the first heating line. The shielding wire is arranged around the heating line. One side or both sides of the shielding wire are grounded. The coating surrounds the heating line and the shielding wire. The coating is made of the insulation material.

Description

HEATING WIRE PREVENTING ELECTROMAGNETIC WAVE AND STATIC ELECTRICITY, AND FABRICATING METHOD THEREOF}

The present invention relates to an electromagnetic wave and an electrostatic elimination heating line for removing electromagnetic waves and preventing the generation of static electricity, and a method of manufacturing the same, and more particularly, to overlap the electromagnetic waves at the closest distance by changing the current direction of the anode line and the cathode line constituting the heating line. Electromagnetic wave to remove electromagnetic waves by offsetting electromagnetic waves, shielding wires are placed at regular intervals around heating wires, shielding the remaining electromagnetic waves that are not offset from heating wires, and grounding shielding wires to prevent static electricity generated around heating wires; The present invention relates to a static electricity removing heating wire and a method of manufacturing the same.

In general, when current flows on heating wires of various heating appliances, electromagnetic waves generated by currents are generated in proportion to the intensity of currents on heating wires. , A new pollution that can lead to diabetes, infertility, miscarriage and sluggish growth of children, and is coming directly to the human body such as electric blankets, electric blankets, electric cushions and electric steamers, which are commonly used at home. When used in contact with the body is more harmful to the human body has a problem that causes fatal damage.

In order to solve the above problems, various types of heating wires that do not generate electromagnetic waves have been developed. Most heating wires that do not generate electromagnetic waves are manufactured by placing the heating wire at the center like a core, coating the outer circumferential surface with a nonflammable coating material, braiding the interlocking heating wire on the outer circumferential surface of the heating wire, and then coating the outer circumferential surface with a non-flammable coating material. . However, since the heating wires must be coated on the heating wires and the braided wires respectively, the outer diameter becomes thicker and the raw material needs to be increased, which is economically inefficient, and when the heating wires are used for electric mats, the weight of the human body exerts pressure on the heating wires. When the finished product was folded and unfolded, there were various problems such as the hot wire located at the center of the heating wire and the braided wire on the sheath, which led to damage and electrical short-circuit.

The present invention has been proposed to solve the above problems, an object of the present invention is to prevent the formation of a magnetic field caused by the flow of current in the heating wire to remove harmful electromagnetic waves to the human body, grounding the shielding wire The present invention provides an electromagnetic wave and a static electricity removing heating wire and a method of manufacturing the same, which can remove static electricity around the heating wire.

In order to achieve the above object, the present invention includes a heating wire portion that generates heat by applying current, a heating wire portion arranged around the heating wire portion, one or both ends of the shielding wire portion, and a covering wire surrounding the heating wire portion and the shielding wire, The part is characterized in that the current direction is reversed to cancel the magnetic field, and the shielding line is grounded to shield the magnetic field and static electricity. In addition, the heating wire unit may be variously deformed in a configuration in which the current direction is reversed to cancel the magnetic field.

The heating wire parts are a plurality of heating wires spaced apart at predetermined intervals side by side, the shielding wire is arranged in the vicinity of the heating wire, heating wire parts to generate heat by applying the current in order to achieve the same object as the object around the heating wires, both ends are The shielding wire part is grounded, and the heating wire part and the covering wire surrounding the shielding wire part, the heating wire part is characterized in that the current direction is reversed to cancel the magnetic field, and the shielding wire is grounded to shield the magnetic field and static electricity. In addition, the heating wire unit may be variously deformed in such a configuration that the current direction is reversed to cancel the magnetic field. Is connected to the other part, and the other part is connected to the cathode, and the heating wires are preferably connected to each other with portions drawn from the other end of the covering line.

In addition, the heating element portion is composed of the first heating wire located in the center and the second and third heating wires located on both sides of the first heating wire, the second and third heating wire is connected to one electrode together, the first heating wire is the other It is preferred to be connected to the electrode.

The heating wire part is two heating wires spirally wound around the heat resistant core and the heat resistant core, and the shielding wire part is a plurality of shielding wires arranged in a circle around the heating wire part, and the heating wires are drawn from one end of the coating wire and connected to the anode and the cathode, respectively. The heating wires are preferably drawn out from the other end of the covering wire and connected to each other.

The insulated wires are interconnected through the temperature control unit, and the temperature control unit cuts off an electrical connection between the insulated wires when the temperature of the insulated wire rises above the set temperature.

Preferably, the heating wires and the shielding lines arranged around the heating wires to produce a heating wire coated with a coating wire made of silicone rubber, wherein the silicone rubber is injected into the die and extruded through the outlet of the die in the shape of the coating wire. Discharging the heating wires and the shielding wires together with the silicone rubber to the outlet through a nipple formed at the outlet, the openings passing through the heating wires and the shielding wires on one side, and the sheathing line covering the heating wires and the shielding wires; It characterized in that it comprises the step of heating the heating wire discharged in one state at 200 ° C to 300 ° C for 40 seconds to 120 seconds.

Also, the heating wires are two heating wires spirally wound around the heat resistant core, and it is preferable to pass through the opening together with the shielding wires while being wound around the heat resistant core.

As described above, the heating wire of the present invention has the effect of canceling the electromagnetic waves by varying the flow of current in the heating wire, and placing the shielding wire around the heating wire to remove the remaining electromagnetic waves. In addition, the shielding wire is grounded to remove the static electricity generated around the heating wire.

In addition, the production method of the heating wire according to the present invention can unify the manufacturing apparatus of the heating wire to reduce the manufacturing process of the heating wire as much as possible to improve the productivity to significantly reduce the production cost of the heating wire.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First Example

1 is a perspective view of a heating wire according to a first embodiment of the present invention, wherein the heating wire is peeled off to expose the heating wire and the shielding wire. FIG. 2 is a cross-sectional view of the leader line "A-A" in FIG. 1, FIG. 3 is a cross-sectional view of the leader line "B-B" in FIG. 1, and FIG. 4 is a cross-sectional view of the leader line "C-C" in FIG.

As shown in FIG. 1, the heating wire 100 includes a heating wire part 110, a shielding wire part 120, and a covering wire 130.

The covering line 130 coats the heating wire 110 to be insulated from the outside and serves to transfer the heat generated from the heating wire 110 to the outside. As shown in FIG. 2, the covering line 130 surrounds the heating wire part 110 and the shielding wire part 120. In the present embodiment, the covering line 130 is preferably made of silicone rubber which is an insulating material.

The heating wire unit 110 generates heat by itself when current is applied from the power supply unit. As illustrated in FIGS. 2 and 3, the heating wire part 110 includes a first heating wire 111 and second and third heating wires 112 and 113. The first heating wire 111 is positioned at the center of the heating wire part 110, and the second and third heating wires 112 and 113 are preferably arranged side by side on both sides of the first heating wire 111. The heating wires 111, 112, and 113 may be arranged to be spaced apart from each other at predetermined intervals.

The heating wires 111, 112, and 113 are drawn out from one end 131 of the covering line 130, so that the first heating wire 111 is connected to the positive electrode, and the second and third heating wires 112 and 113 are negative. Is connected to, and vice versa. On the other hand, the heating wires (111, 112, 113) drawn from the other end 132 of the covering line 130 is preferably connected to each other through a temperature control unit (not shown).

When the current is applied from the power supply unit, the first heating wire 111 connected to the positive electrode and the second and third heating wires 112 and 113 connected to the negative electrode are reversed in the direction of current flow. The directions of the magnetic fields are also opposite to each other like the arrow directions shown in the drawing. Therefore, the magnetic field generated in the first heating wire 111 positioned in the center of the covering line 130 and the magnetic fields generated in the second and third heating wires 112 and 113 overlap each other and cancel each other.

Meanwhile, the shielding line unit 120 shields the magnetic field generated from the heating wire unit 110, and both ends of the shielding line unit 120 are grounded to remove static electricity generated around the heating line 100. As shown in FIG. 1 and FIG. 2, the shielding line part 120 includes a plurality of shielding lines 120a, 120b, 120c, 120d, 120e, and 120f, and the predetermined shielding line part 120 includes a plurality of shielding lines 120a. They are arranged side by side, spaced apart. That is, as shown in FIG. 4, the shield lines 120c and 120f are arranged to be symmetric about the heating wire 112.

The shield lines 120a, 120b, 120c, 120d, 120e, and 120f are drawn out from one end 131 of the covering line 130 and connected to each other and grounded, and are drawn out of the other end 132 and connected to each other and grounded. To shield static electricity generated around heating wires.

In this embodiment, the arrangement state of the heating wire and the shielding wire can be implemented in various ways without being limited as described above.

Hereinafter, the heating line according to the second embodiment of the present invention will be described with reference to FIGS. 5 to 7.

2nd Example

5 is a perspective view of a heating line according to a second exemplary embodiment of the present invention, in which a heating line and a shielding line are exposed by removing a covering line, and FIG. 6 is a cross-sectional view taken along the line “DD” of FIG. 5. 7 is an installation perspective view of a heating wire according to a second embodiment.

As shown in FIG. 5, the heating wire 200 includes a heating wire part 210, a shielding wire part 220, and a covering line 230.

The covering line 230 surrounds the heating wire part 210 and the shielding wire part 220. It is preferable that the coating line in a present Example consists of silicone rubber.

The heating wire part 210 is positioned at the center of the covering line 230 and includes a heat resistant core 213 and two heating wires 211 and 212 spirally wound around the heat resistant core. The heating wire part 210 of the present embodiment, after winding the heating wire 211 to the core 213 from one side 213a direction of the core 213 to the other side 213b direction from the other side (213b) direction The heating wire 212 is wound around the core 213 in one direction 213a. The heating wire wound as described above is preferably arranged so that the heating wire 211 connected to the positive electrode (or the negative electrode) and the heating wire 212 connected to the negative electrode (or the positive electrode) are spaced apart from each other at predetermined intervals and adjacent to each other when an electric current is applied. Do. This is because the direction of rotation of the magnetic field is also different if the direction of the current is different as described above, so that the magnetic fields are overlapped and canceled out.

As shown in FIG. 7, the heating wires 211 and 212 drawn from one end 231 of the covering line 230 are connected to the anode and the cathode of the power supply unit 240, respectively. The heating wires 211 and 212 drawn out from the other end 232 are connected to each other through the temperature controller 250. The temperature controller 250 controls the temperature of the insulation line to rise above the set temperature to prevent the temperature from rising above the set temperature.

Meanwhile, as shown in FIGS. 5 and 6, the shielding wire part 220 includes a plurality of shielding wires 220a, 220b, 220c, 220d, 220e, and 220f, and has a circular shape around the heating wire part 210. Are arranged. The shield lines 220a, 220b, 220c, 220d, 220e, and 220f are spaced apart from each other at predetermined intervals and are located side by side. The shielding wires 220a, 220b, 220c, 220d, 220e, and 220f are drawn from one end 231 and the other end 232 of the covering line 230, and are connected to each other at both ends and grounded.

In the present embodiment, the arrangement of the heating wires and the shielding wires may be implemented in various ways without being limited as described above.

So far, the heating line according to the second embodiment of the present invention has been described.

Hereinafter, a method of producing the heating wire of the present invention will be described with reference to FIGS. 8 and 9.

The heating prefabricator includes a silicone rubber injector 10, a head 20 on which the nipple 30 and the die 40 are mounted, and a heater box 50.

The heating wire and the shielding wires arranged around the heating wires produce a heating wire coated with a sheath made of silicone rubber, which comprises extrusion, exhausting, and heating.

The extrusion step, after the silicone rubber injected through the inlet 11 of the silicone rubber injector is injected into the die 40 by rotating the screw-shaped rod of the silicone rubber injector 10, the die 40 The extrusion process step of passing through the outlet 42 of the coating line in the shape of.

The discharging step is a step of discharging the heating wires and the shielding wires together with the silicone rubber to the discharge port 42 through the nipple 30, which is located at the discharge port 42 and has openings passing through the heating wires and the shielding wires on one side thereof. .

In the discharging step, the arrangement of the heating wires and the shielding wires is determined according to the shape of the nipple, and the shape of the nipple is as shown in FIG. 9. The nipple 30 shown in FIG. 9A is used in the first embodiment, and the nipple 30 shown in FIG. 9B is used in the second embodiment.

The heating wires and the shielding wires are spaced at predetermined intervals so as not to contact each other, and simultaneously pass through the nipples 30. The arrangement state of the heating wire and the shielding wire is determined according to the shape of the nipple, and the shape of the heating wire is determined. The heating wires 111, 112, and 113 in the first embodiment pass through the openings 31b, 31a, and 31c of the nipple 30, respectively, and the shielding lines 120a, 120b, 120c, 120d, 120e, and 120f. Passes through the openings 32a, 32b, 32c, 32d, 32e, and 32f of the nipple, respectively. The heating wire 210 according to the second embodiment passes through the opening 33 of the nipple 30 as two heating wires 211 and 212 spirally wound on the heat resistant core 213, and shielding wires 220a, 220b and 220c. , 220d, 220e, 220f pass through the openings 34a, 34b, 34c, 34d, 34e, 34f of the nipple 30. As such, the heating wires and the shielding wires passing through the openings of the nipple 30 are covered by the silicone rubber in the die 40 and then discharged through the outlet 42.

The final heating step, the heating wire discharged in the state in which the coating line covers the heating wires and shielding lines through the above-described extrusion step and discharge step for 40 seconds to 120 seconds at 200 ° C to 300 ° C in the heater box 50 It is a step to increase the elasticity, heat resistance and extensibility of the silicone rubber by heating.

Although specific embodiments of the present invention have been described and illustrated herein, modifications and variations can be made by those skilled in the art. Hereinafter, the claims may be understood to include all modifications and variations as long as they fall within the spirit and scope of the present invention.

1 is a perspective view of a heating line according to a first exemplary embodiment of the present invention, in which a heating line and a shielding line are exposed by peeling a covering line.

FIG. 2 is a cross-sectional view of the leader line “A-A” of FIG. 1 and illustrating an arrangement state of heating wires and shielding lines.

FIG. 3 is a cross sectional view taken along the line “B-B” of FIG. 1 and showing an arrangement state between heating lines. FIG.

FIG. 4 is a cross sectional view taken along the line “C-C” of FIG. 1, showing a ground state of the shield line.

5 is a perspective view illustrating a heating line according to a second exemplary embodiment of the present invention, in which a heating line and a shielding line are exposed by peeling a covering line.

FIG. 6 is a cross sectional view taken along the line “D-D” of FIG. 5, showing an arrangement state of the heating line and the shielding line and a ground state of the shielding line.

7 is an installation perspective view of a heating wire according to a second embodiment.

8 is a cross-sectional view of an apparatus for manufacturing a heating wire.

9A is a perspective view of a nipple used in manufacturing a heating wire according to a first embodiment of the present invention, and FIG. 9B is a perspective view of a nipple used in manufacturing a heating wire according to a second embodiment of the present invention.

Claims (7)

A heating wire part that generates heat by applying current; A shielding wire part arranged around the heating wire part and having one or both ends grounded; And a shielding wire surrounding the heating wire part and the shielding wire part. The method of claim 1, The heating wire unit is a plurality of heating wires spaced apart by a predetermined interval side by side, The shielding portion is a plurality of shielding lines arranged to be symmetrical around the heating wires, The heating wires are drawn out from one end of the sheathing line, partly connected to the anode, and the other part to the cathode, The heating wires are electromagnetic waves and static electricity elimination heating line, characterized in that the parts drawn from the other end of the coating line are connected to each other. The method of claim 2, The heating wire portion is composed of a first heating wire located in the center and the second and third heating wires located on both sides of the first heating wire, And the second and third heating wires are connected to one electrode together, and the first heating wire is connected to the other electrode. The method of claim 1, The heating wire portion is a heat-resistant core and two heating wires spirally wound around the heat-resistant core, The shielding wire portion is a plurality of shielding wires arranged in a circle around the heating wire portion, The heating wires are drawn out from one end of the sheathing line and are respectively connected to the anode and the cathode, And the heating wires are drawn from the other end of the covering line and connected to each other. The method according to claim 2 or 4, The insulation wires are interconnected through the temperature control unit, And the temperature control unit cuts off an electrical connection between the insulated wires when the temperature of the insulated wire rises above a predetermined temperature. In the heating wires and the shielding lines arranged around the heating wires to produce a heating wire coated with a coating wire made of silicone rubber, Injecting the silicone rubber into a die and extruding it through the outlet of the die in the shape of the covering line; Discharging the heating wires and the shielding wires together with the silicone rubber to the outlet through a nipple disposed at the outlet and having openings through the heating wires and the shielding wires at one side thereof; And And heating the discharged heating wire discharged while the covering wire covers the heating wires and the shielding wires at 200 ° C. to 300 ° C. for 40 seconds to 120 seconds. The method of claim 6, The heating wires are two heating wires spirally wound around a heat resistant core, and pass through the opening together with the shielding wires while wound around the heat resistant core.

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