KR101775787B1 - Heating cable and its fabricating method - Google Patents

Heating cable and its fabricating method Download PDF

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Publication number
KR101775787B1
KR101775787B1 KR1020150144419A KR20150144419A KR101775787B1 KR 101775787 B1 KR101775787 B1 KR 101775787B1 KR 1020150144419 A KR1020150144419 A KR 1020150144419A KR 20150144419 A KR20150144419 A KR 20150144419A KR 101775787 B1 KR101775787 B1 KR 101775787B1
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KR
South Korea
Prior art keywords
heating
wire
terminal portion
heating wire
cover
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KR1020150144419A
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Korean (ko)
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KR20170044831A (en
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주진숙
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주진숙
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/04—Cable-end sealings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/04—Waterproof or air-tight seals for heaters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/145—Carbon only, e.g. carbon black, graphite
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/18—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being embedded in an insulating material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/026—Heaters specially adapted for floor heating

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  • Resistance Heating (AREA)

Abstract

The present invention relates to a heating cable for heating and a method of manufacturing the same. The present invention relates to a heating cable for heating and a method of manufacturing the same, wherein a slit is formed in a 'T' shape at the center of one side of a wire terminal portion and a heating wire terminal portion, A cover type terminal that presses and electrically connects the wire and the heating wire is applied so that the electrical connection between the wire and the heating wire can be easily connected through an automated press operation while the electric connection between the wire and the heating wire is simplified. And it is an object of the present invention to improve the productivity of the heating cable for heating by facilitating fabrication of the heating cable.
The heating cable for heating according to the present invention comprises a conductor which is composed of a conductor and a cover which surrounds the conductor and is connected to a power source to supply electric power and an outer shell of an insulating material surrounding the carbon heating element, A cover type terminal which is provided as a conductive material and surrounds a connection portion of the electric wire and the heating wire and electrically connects the electric wire and the heating wire to each other and insert injection molding, The cover-type terminal includes a wire terminal portion that surrounds a connection portion of the electric wire with the heating wire in a "T" shape, and a wire terminal portion that surrounds a connection portion of the electric wire with the heating wire, A heating wire terminal portion surrounding the connection portion is connected to be orthogonal to the heating wire terminal portion, T "shape at the center of one side of the wire terminal portion and the heating wire terminal portion so that the both end portions of the terminal portion and the one end portion of the heating wire terminal portion can be contacted with the conductor of the electric wire and the carbon heating element of the heating wire through a press operation As shown in Fig.
A method of manufacturing a heating cable for heating according to the present invention is a method for manufacturing a heating cable for heating, the method comprising the steps of: forming a pair of heating wires And arranging a heating wire; A wire connecting step of mutually electrically connecting and fixing the connecting portion of the wire and the heating wire arranged through the wire arranging step while covering the connecting portion with the cover type terminal composed of the wire terminal portion and the heating wire terminal portion; And a sealing finishing step of sealing the outer periphery of the cover-type terminal, which is connected and fixed by connecting the wire and the heating wire through the wire connecting step, through the insert injection molding.

Description

TECHNICAL FIELD [0001] The present invention relates to a heating cable for heating,

More particularly, the present invention relates to a heat generating cable for heating and a method of manufacturing the same. More particularly, the present invention relates to a heating cable for heating and a method of manufacturing the same, Shaped terminal to electrically connect the electric wire and the heating wire so that the electric connection between the electric wire and the heating wire can be easily connected through an automated press operation and the electric connection between the electric wire and the heating wire can be easily performed And more particularly, to a heating cable for heating and a method of manufacturing the same, which can improve the productivity of a heating cable for heating due to easy fabrication of a heating cable for heating.

Generally, floor heating through low-temperature radiation using electricity is a newly-emerging architectural heating technology.

As a heating material for such floor heating, a carbon heating element is typically used. Such a carbon heating element has a function of radiating far-infrared rays.

Therefore, a heating cable for heating using the carbon heating element as described above has been developed and used.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an illustration showing a heating cable for heating using a carbon heating element according to the prior art; FIG.

Referring to FIG. 1, a conventional heating cable for heating is installed on the floor of a house, a school, a factory, an airport runway, etc., and a terminal 3 is connected to both ends of a cable 1 cut to a predetermined length And the adjacent two terminals 3 are connected by a screw 4 and the screw 4 is embedded in the heating wire 2. [

The electric wire 1 is composed of a conductor through which a current flows and an envelope surrounding the conductor. The heating wire 2 is composed of a carbon heating element 2a and a sheath 2b surrounding the carbon heating element 2a.

The electrical connection between the electric wire 1 and the heating wire 2 is such that the screw 4 connected to the terminal 3 is connected to the carbon heating element 2b of the heating wire 2 by being connected thereto.

The heat-generating heating cable having the above-described configuration is easily installed on the floor of a tack, a school, a factory, an airport runway, etc., and is used for floor heating.

However, the heating cable for heating according to the related art has a problem in that when a screw is inserted into a carbon heating element, a space is formed between the screw and the carbon heating element to generate an electric spark because the heating cable for heating is connected to the carbon heating element of the heating wire In addition, there is a problem that fire occurs due to generation of electric spark.

Further, since the connection between the electric wire and the heating wire is electrically connected to the terminal by the screw, the electric connection structure between the electric wire and the heating wire is complicated, thereby making it difficult to manufacture the heating wire for heating.

In order to solve the above problem, a heating heating carbon heating device as shown in Patent Document 1 (Registered Utility Model No. 461880, Aug. 06, 2012, Registered by the Republic of Korea) has been developed. In such heating heating carbon heating device, To which the fastener is further coupled.

At this time, the fixture is made of a non-conductive synthetic resin material and is coupled so as to cover the outside of the connection portion between the electric wire and the heating wire.

Accordingly, the fixture is further provided to seal the outside of the connection portion between the electric wire and the heating wire, thereby preventing moisture from flowing into the connection portion between the electric wire and the heating wire, thereby preventing an accident such as a short circuit.

However, in the heating heating carbon heating device applied with the heating cable for heating as described above, since the electric connection between the electric wire and the heating wire is connected through the screw, there is a problem that the heating cable for heating is not easily manufactured.

In addition, since the heating cable for heating is not easily manufactured, the productivity of the heating cable for heating is deteriorated.

Therefore, the electrical connection between the electric wire and the heating wire can be easily connected through the automated press work, and the electric connection between the simplified electric wire and the heating wire can be easily manufactured for the heating cable for heating, thereby improving the productivity of the heating cable for heating. It is required to research and develop a heating cable for heating and a manufacturing method thereof.

Registered Utility Model No. 461880 of Korea Registered Aug. 6, Registered Utility Model No. 463004 Registered in Korea Oct. Registered Utility Model No. 417945 of Korea Registered on May 29, 2006.

In order to solve the above-mentioned problems, the present invention is characterized in that a slit is formed in a 'T' shape at the center of one side of a wire terminal portion and a heating wire terminal portion so that both side ends of the wire terminal portion and one end portion of the heating wire terminal portion are pressed, Shaped terminal to be electrically connected to each other, so that the electrical connection between the electric wire and the heating wire can be easily connected through a press work which is automated, and a method for manufacturing the same.

In addition, according to the present invention, slits are formed in a 'T' shape at the center of one side of a wire terminal portion and a heating wire terminal portion so that both ends of the wire terminal portion and one end portion of the heating wire terminal portion are pressed to electrically connect the wire and the heating wire It is easy to make the electrical connection between the electric wire and the heating wire by the press work which is automated by applying the cover type terminal which makes it easy to manufacture the heating cable for heating through the electrical connection between the simplified electric wire and the heating wire. The present invention has been made in order to solve the above problems.

The present invention for achieving the above-mentioned objects is as follows. That is, the heating cable for heating according to the present invention comprises a conductor which is composed of a conductor and a cover which surrounds the conductor, and which is connected to a power source to supply electricity, and an outer shell of an insulating material surrounding the carbon heating element, A cover type terminal which is provided as a conductive material and which surrounds a connection portion between the electric wire and the heating wire and which electrically connects the electric wire and the heating wire to each other and inserts the outside of the cover type terminal through insert injection molding, Wherein the cover-type terminal has a wire terminal portion that surrounds a connection portion of the electric wire with the heating wire in a "T" shape and a connection portion between the electric wire of the heating wire and the heating wire, The heating wire terminal portions surrounding the electric wire terminal portions are connected to each other at right angles, T "shape across the center of the wire and the heating wire terminal portion so that one end of the heating wire terminal portion and one end of the heating wire terminal portion can be in contact with the conductor of the wire and the carbon heating element of the heating wire through a press operation And a slit is formed.

Here, both ends of the wire terminal portion and one end of the heating wire terminal portion are connected to each other so that the both end portions of the wire terminal portion and the one end portion of the heating wire terminal portion can be in multi-point contact with the conductor of the wire and the carbon heating element of the heating wire, It is preferable that sawtooth pieces each having a sawtooth shape in which mountains and valleys are repeated in the circumferential direction are formed.

Further, both ends of the wire terminal portion and one end of the heating wire terminal portion are connected to each other so that the both end portions of the wire terminal portion and the one end portion of the heating wire terminal portion can be multi-point contacted with the conductor of the wire and the carbon heating element of the heating wire, And the punching protruding pieces may be formed inwardly protruding at regular intervals along the circumferential direction.

Further, both ends of the wire terminal portion and one end of the heating wire terminal portion are connected to each other so that the both end portions of the wire terminal portion and the one end portion of the heating wire terminal portion can be contacted with the carbon heating element of the electric wire and the heating wire, A bent piece may be formed which is slitted in a "U" shape at regular intervals along the circumferential direction and selectively bent inward by a pressing operation.

At this time, the bent piece may be punched inward from the wire terminal portion and the outside of the heating wire terminal portion on one side, and the bending and punching protruding piece may be formed to protrude inward.

A method of manufacturing a heating cable for heating according to the present invention is a method of manufacturing a heating cable for heating, the method comprising the steps of: forming a pair of heating wires And arranging a heating wire; A wire connecting step of mutually electrically connecting and fixing the connecting portion of the wire and the heating wire arranged through the wire arranging step while covering the connecting portion with the cover type terminal composed of the wire terminal portion and the heating wire terminal portion; And a sealing finishing step of sealing the outer periphery of the cover-type terminal, which is connected and fixed by connecting the wire and the heating wire through the wire connecting step, through the insert injection molding.

The wire connecting step may include pressing both ends of the wire terminal portion of the cover type terminal and one end portion of the heating wire terminal portion of the cover type terminal by pressing protrusions protruding from both sides of the opposing press surface of the press device and the center Through the slits cut out in a "T" shape across the center of one of the electric wire terminal portion and the heating wire terminal portion, both ends of the electric wire terminal portion are inwardly moved in a circumferential direction, At the same time, the one end of the heating wire terminal portion is inwardly moved in the circumferential direction, and the outer surface of the heating wire is pierced and brought into contact with the carbon heating element.

The wire connecting step may include pressing both side ends of the wire terminal portion of the cover type terminal and one end portion of the heating wire terminal portion of the cover type terminal by pressing protrusions protruding from both sides of the opposing press surface of the press device and the center A slit that is cut out in a "T" shape across the center of one surface of the wire terminal portion and the heating wire terminal portion, and a sawtooth shape in which mountains and bones are repeated in the circumferential direction at both side ends of the electric wire terminal portion and one end portion of the heating wire terminal portion So that one end of the heating wire terminal is in contact with the conductor in the circumferential direction while the other end of the wire terminal portion is inwardly moved in the circumferential direction by the saw tooth formed with the saw blade, So that the outer surface of the heating wire is pierced through the saw teeth, It may be made by the process of multi-point contact with the heating body.

Further, in the wire connecting step, both ends of the wire terminal portion of the cover-type terminal and one end portion of the heating wire terminal portion of the cover-type terminal are pressed by both the press faces of the press device facing each other and the press- A slit formed in a center of one surface of the wire terminal portion and the heating wire terminal portion through a slit formed in a "T" shape through the wire terminal portion and the heating wire terminal portion, The both ends of the wire terminal portion are pressed inwardly in the circumferential direction by the punching protruding pieces formed so that the cover of the electric wire is pierced through the punching protruding piece to make multi-point contact with the conductor, and at the same time, And pushes the outer surface of the heating wire through the punching protruding piece while pressing it inwardly And a process of multipoint contact with the carbon heating element.

In addition, in the wire connecting step, both ends of the wire terminal portion of the cover type terminal and one end portion of the heating wire terminal portion of the cover type terminal are pressurized by pressing protrusions protruding from both sides of the press surface facing each other and the center A plurality of slits cut out in a "T" shape across the center of one surface of the wire terminal portion and the heating wire terminal portion, and a pair of slits formed at both ends of the wire terminal portion and at one end portion of the heating wire terminal portion, And a bent punching protruding piece formed inwardly from the outside of the wire terminal portion and the heating wire terminal portion and formed inwardly and protruding inward from the outer surface of the wire terminal portion on one side of the bent piece, As the end portion is moved inwardly in a certain area in the circumferential direction, the bending piece and the bending punching projecting piece And a plurality of contact portions are formed on the outer surface of the heating wire through the bending piece and the bending and punching protruding pieces so as to be in multi-point contact with the carbon heating element while the one end portion of the heating wire terminal portion is inwardly moved in a certain area in the circumferential direction Process.

Effects of the heating cable for heating and the manufacturing method thereof according to the present invention are as follows.

First, a slit is formed in a 'T' shape across the center of one side of the wire terminal and the heating wire terminal, and both ends of the wire terminal and one end of the heating wire terminal are pressed to electrically connect the wire and the heating wire. As a result, the electric connection between the wire and the heating wire can be easily connected through an automated press operation.

Second, a slit is formed in a 'T' shape at the center of one side of the wire terminal and the heating wire terminal, and both ends of the wire terminal and one end of the heating wire terminal are pressed to electrically connect the wire and the heating wire. The electrical connection between the electric wire and the heating wire can be easily connected through a press work which is automated. Thus, the electric wire connection between the simplified electric wire and the heating wire facilitates the production of the heating cable for heating, thereby improving the productivity of the heating cable.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a heating cable for heating using a carbon heating element according to the prior art; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cable for heating,
3 is a perspective view showing a main portion of a cover-type terminal which is a main portion of a heating cable for heating according to a first embodiment of the present invention;
Fig. 4 is a cross-sectional view showing a main portion of a cover-type terminal which is a substantial part of a heating cable for heating according to the first embodiment of the present invention; Fig.
FIG. 5 is a view illustrating a use state in which a wire and a heating wire are electrically connected and fixed by a cover-type terminal, which is a substantial part of a heating cable for heating according to a first embodiment of the present invention;
FIG. 6 is a perspective view showing a main portion of a cover-type terminal which is a main portion of a heating cable for heating according to a second embodiment of the present invention; FIG.
Fig. 7 is a cross-sectional view showing a main portion of a cover-type terminal which is a substantial part of a heating cable for heating according to a second embodiment of the present invention; Fig.
FIG. 8 is an explanatory view showing a use state in which a wire and a heating wire are electrically connected and fixed by a cover-type terminal which is a substantial part of a heating cable for heating according to a second embodiment of the present invention;
FIG. 9 is a perspective view showing a main portion of a cover-type terminal which is a main portion of a heating cable for heating according to a third embodiment of the present invention; FIG.
Fig. 10 is a cross-sectional view showing a main part of a cover-type terminal, which is a substantial part of a heating cable for heating according to a third embodiment of the present invention; Fig.
FIG. 11 is an explanatory view showing a state of use in which a wire and a heating wire are electrically connected and fixed by a cover-type terminal, which is a substantial part of a heating cable for heating according to a third embodiment of the present invention.
FIG. 12 is a perspective view showing a main portion of a cover-type terminal which is a main portion of a heating cable for heating according to a fourth embodiment of the present invention; FIG.
Fig. 13 is a cross-sectional view showing a main portion of a cover-type terminal which is a substantial part of a heating cable for heating according to a fourth embodiment of the present invention; Fig.
FIG. 14 is an explanatory view showing a use state in which a wire and a heating wire are electrically connected and fixed by a cover-type terminal which is a substantial part of a heating cable for heating according to a fourth embodiment of the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a heating cable for heating and a method of manufacturing the same according to the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a heating cable for heating, and more particularly, to a heating cable for heating according to the first aspect of the present invention, Fig. 5 is a perspective view of a cover-type terminal of a heating cable for heating according to a first embodiment of the present invention. Fig. 5 is a side view of a heating-type cable for heating according to the first embodiment of the present invention. And the heating line is electrically connected and fixed.

Fig. 6 is a perspective view of a cover-type terminal, which is a substantial part of a heating cable for heating according to a second embodiment of the present invention. Fig. 7 is a perspective view of a cover- And FIG. 8 is an explanatory view illustrating a state of use in which a wire and a heating wire are electrically connected and fixed by a cover-type terminal that is a substantial part of a heating cable for heating according to a second embodiment of the present invention.

FIG. 9 is a perspective view of a cover-type terminal, which is a substantial part of a heating cable for heating according to a third embodiment of the present invention. FIG. 10 is a perspective view of a cover- And FIG. 11 is an explanatory view illustrating a state of use in which a wire and a heating wire are electrically connected and fixed by a cover-type terminal, which is a substantial part of a heating cable for heating according to a third embodiment of the present invention.

FIG. 12 is a perspective view of a cover-type terminal, which is a substantial part of a heating cable for heating according to a fourth embodiment of the present invention. FIG. 13 is a perspective view of a cover- FIG. 14 is an explanatory view illustrating a use state in which a wire and a heating wire are electrically connected and fixed by a cover-type terminal, which is a substantial part of a heating cable for heating according to a fourth embodiment of the present invention.

2 to 5, a heating cable 1 for heating according to a preferred embodiment of the present invention includes a conductor 110 and a cover 120 surrounding the conductor 110, A heating wire 200 composed of an electric wire 100 to be supplied and an outer cover 220 of an insulating material surrounding the carbon heating element 210 and having both ends connected in parallel at regular intervals in the longitudinal direction of the electric wire 100, A cover type terminal 300 which is provided as a material to electrically connect the electric wire 100 and the heating wire 200 while covering the connection between the electric wire 100 and the heating wire 200, And a sealing cover 400 closely attached to surround the outside of the terminal 300.

In the heating cable 1 for heating according to the present invention having the above-described configuration, the cover-type terminal 300 has a wire terminal portion (not shown) which surrounds a connection portion between the wire 100 and the heating wire 200 in a & And a heating wire terminal portion 350 surrounding the connecting portion of the heating wire 200 and the electric wire 100 are connected to each other in an orthogonal manner.

The cover-type terminal 300 is connected to both ends of the wire terminal portion 310 and one end of the heating wire terminal portion 350 through a pressing operation so that the conductor 110 of the wire 100 and the heating wire It is preferable that a slit 301 is formed in the electric wire terminal portion 310 and the heating wire terminal portion 350 so as to be in contact with the carbon heating element 210 of the electric heating element 200 .

In this case, the center of one side of the wire terminal portion 310 and the heating wire terminal portion 350 means the central portion of the side surface of the heating wire terminal portion 350 in the direction of the "T"

Further, it is preferable that the slit 301 is formed to have a width corresponding to the thickness of the heating line 200.

Accordingly, after the heating wire 200 is inserted through the slit 301 on the heating wire terminal unit 350, the heating wire terminal unit 350 is pressed through the heating wire 200 in a state where the heating wire 200 is inserted In a shape corresponding to the shape of the heating wire 300 in the first embodiment.

In other words, in the cover type terminal 300, the slit 301 is formed in the wire terminal portion 310 and the heating wire terminal portion 350 at the center of one surface in a "T & Both end portions of the electric wire terminal portion 310 and one end portion of the heating wire terminal portion 350 are electrically connected to the conductor 110 of the electric wire 100 and the heating wire 200 ) Of the carbon heating body 210. [

Meanwhile, a method of manufacturing the heating cable 1 having the cover-type terminal 300 as described above includes a wire arrangement step, a wire connecting step, and a sealing finishing step.

Here, the wires are arranged in such a manner that the wires 100 and the heating wires 200 are arranged so that both ends of the heating wire 200 are closely contacted with the wires 100 arranged in a pair with a predetermined gap therebetween.

The wire connecting step may include connecting the wire 100 and the heating wire 200 through the wire rod arranging step to the cover terminal 300 having the wire terminal 310 and the heating wire terminal 350 And electrically connecting and fixing them.

The wire connecting step may include a step of connecting both ends of the wire terminal part 310 of the cover type terminal 300 and one end of the heating wire terminal part 350 of the cover type terminal 300 to the opposite ends of the press device 500 A slit (not shown) cut in a "T " shape across the center of one surface of the wire terminal portion 310 and the heating wire terminal portion 350 is formed through a pressing operation by the pressing protrusions 510 protruding from both sides of the press- The heating wire terminal portion 350 contacts the conductor 110 by digging the cover 120 of the wire 100 while both ends of the wire terminal portion 310 are inwardly moved in the circumferential direction by the wire 301, And a process of digging the outer surface 220 of the heating line 200 and contacting the carbon heating element 210 while the one end thereof is inwardly moved in the circumferential direction.

The sealing finishing step is a step of covering the connection portion between the electric wire 100 and the heating wire 200 through the wire connecting step and sealing the outside of the cover-type terminal 300 connected and fixed through the insert injection molding. (400).

In the method of manufacturing the heating cable 1 for heating as described above, particularly, the cover type terminal 300 having the slit 301 described above is applied, so that the electric wire 100 and the heating wire 200 are connected to the cover type terminal 300 The manufacturing process of the wire connecting step in which both ends of the wire terminal part 310 and one end of the heating wire terminal part 350 are fixed while being electrically connected to each other can be simplified through automated processing.

6 to 8, the cover-type terminal 300 according to the second embodiment, which is a substantial part of the heating cable for heating according to the present invention, is a cover terminal 300, which is a main part of the heating cable for heating described with reference to FIGS. And only the tooth pieces 311 and 351 are formed in this embodiment.

In detail, the cover-type terminal 300 according to the second embodiment, which is a substantial part of the heating cable for heating according to the present invention, is formed by pressing the both side ends of the wire terminal part 310 and one side of the heating wire terminal part 350 The ends of the wire terminal portion 310 and the heating wire terminal portion 350 are connected to each other so that the end portions of the wire terminal portion 310 and the carbon heating element 210 of the heating wire 200 can be contacted with the conductor 110 of the wire 100 and the carbon heating element 210 of the heating wire 200, The end portions are sawtooth pieces 311 and 351 having sawtooth shapes in which mountains and valleys are repeated in the circumferential direction.

The manufacturing method of the heating cable (1) for heating, to which the cover-type terminal (300) according to the second embodiment is applied, includes a wire arranging step, a wire connecting step and a sealing finishing step.

Here, the wires are arranged in such a manner that the wires 100 and the heating wires 200 are arranged so that both ends of the heating wire 200 are closely contacted with the wires 100 arranged in a pair with a predetermined gap therebetween.

The wire connecting step may include connecting the wire 100 and the heating wire 200 through the wire rod arranging step to the cover terminal 300 having the wire terminal 310 and the heating wire terminal 350 And electrically connecting and fixing them.

The wire connecting step may include a step of connecting both ends of the wire terminal part 310 of the cover type terminal 300 and one end of the heating wire terminal part 350 of the cover type terminal 300 to the opposite ends of the press device 500 A slit (not shown) cut in a "T " shape across the center of one surface of the wire terminal portion 310 and the heating wire terminal portion 350 is formed through a pressing operation by the pressing protrusions 510 protruding from both sides of the press- (311, 351) formed at both side ends of the wire terminal part (310) and one end of the heating wire terminal part (350) and having sawtooth shapes repeated in the circumferential direction And the ends of the wire terminals 310 are inwardly moved inward in the circumferential direction so that the sheathing pieces 311 penetrate the sheath 120 of the wire 100 and make multi-point contact with the conductor 110, One end of the portion 350 is in the circumferential direction It is preferable that the step of contacting the outer surface 220 of the heating wire 200 with the carbon heating element 210 is performed while the inner surface of the heating wire 200 is inwardly inclined.

The sealing finishing step is a step of covering the connection portion between the electric wire 100 and the heating wire 200 through the wire connecting step and sealing the outside of the cover-type terminal 300 connected and fixed through the insert injection molding. (400).

In the method for manufacturing the heating cable 1 for heating applied with the cover type terminal 300 according to the second embodiment as described above, the cover type terminal 300 having the above-described slit 301 and the toothed pieces 311 and 351 The electric wire 100 and the heating wire 200 are electrically connected to the teeth 311 and 351 while the opposite ends of the electric wire terminal 310 and the heating wire terminal 350 of the cover- So that the manufacturing process of the wire bonding step, which is fixed to the multi-point contact type and electrically connected to each other, can be simplified through automated processing.

9 to 11, the cover-type terminal 300 according to the third embodiment, which is a substantial part of the heating cable for heating according to the present invention, is a cover type terminal, which is a main portion of the heating cable for heating described with reference to FIGS. And the punching protruding pieces 313 and 353 are formed in this embodiment.

In detail, the cover-type terminal 300 according to the second embodiment, which is a substantial part of the heating cable for heating according to the present invention, is formed by pressing the both side ends of the wire terminal part 310 and one side of the heating wire terminal part 350 The ends of the wire terminal portion 310 and the heating wire terminal portion 350 are connected to each other so that the end portions of the wire terminal portion 310 and the carbon heating element 210 of the heating wire 200 can be contacted with the conductor 110 of the wire 100 and the carbon heating element 210 of the heating wire 200, The end portions have punching protrusions 313 and 353 protruding inwardly at regular intervals along the circumferential direction.

The manufacturing method of the heating cable 1 for heating, to which the cover-type terminal 300 according to the third embodiment is applied, includes a wire arranging step, a wire connecting step, and a sealing finishing step.

Here, the wires are arranged in such a manner that the wires 100 and the heating wires 200 are arranged so that both ends of the heating wire 200 are closely contacted with the wires 100 arranged in a pair with a predetermined gap therebetween.

The wire connecting step may include connecting the wire 100 and the heating wire 200 through the wire rod arranging step to the cover terminal 300 having the wire terminal 310 and the heating wire terminal 350 And electrically connecting and fixing them.

The wire connecting step may include a step of connecting both ends of the wire terminal part 310 of the cover type terminal 300 and one end of the heating wire terminal part 350 of the cover type terminal 300 to the opposite ends of the press device 500 And pressurized by the pressing protrusions 510 protruding from both sides and the center of the press surface,

A slit 301 cut in a T shape across the center of one side of the wire terminal portion 310 and the heating wire terminal portion 350 and a slit 301 formed at both sides of the wire terminal portion 310 and the heating wire terminal portion 350 And the punching protruding pieces 313 and 353 protruding inwardly at predetermined intervals along the circumferential direction at one end of the wire terminal portion 310. The punching protruding pieces 313 and 353 press the punching protruding pieces The heating wire terminal portion 350 is pressed inwardly in the circumferential direction while the cover 120 of the wire 100 is contacted with the conductor 110 through the through hole 313 to multipoint the conductor 110 and the punching protrusion 353, (220) of the heating line (200) through the heating plate (200) and contact with the carbon heating element (210).

The sealing finishing step is a step of covering the connection portion between the electric wire 100 and the heating wire 200 through the wire connecting step and sealing the outside of the cover-type terminal 300 connected and fixed through the insert injection molding. (400).

In the method for manufacturing the heating cable 1 for heating applied with the cover-type terminal 300 according to the third embodiment as described above, particularly in the case of the cover-type terminal having the slit 301 and the punching protruding pieces 313 and 353 described above The electric wire 100 and the heating wire 200 are pressed against both ends of the wire terminal portion 310 of the cover type terminal 300 and one end portion of the heating wire terminal portion 350 by the application of the punching protrusions 313, 353 are fixed in a multi-point contact type and are electrically connected to each other, the operation of manufacturing the wire connecting step can be simplified through automated processing.

In the cover type terminal 300 according to the third embodiment as described above, the punching protruding pieces 313 and 353 are not in a machined state but are pressed against the pressing protrusions 510 The shape of the end may be provided with a sharp-pointed pin type so that it can be post-processed by such sharp-tip type pressing protrusions.

At this time, the punching protruding pieces 313 and 353 to be post-processed are pushed by the punching action of the pressing protrusion when pressurized through the pressing protrusion applied with a sharp tip, so that both ends of the electric wire terminal portion 310 and the heating wire terminal portion 350 so as to penetrate the cover 120 of the wire 100 and contact the conductor 110 or the cover 220 of the heating wire 200 to contact the carbon heating element 210.

12 to 14, the cover-type terminal 300 according to the fourth embodiment, which is a substantial part of the heating cable for heating according to the present invention, is a cover-type terminal, which is a main part of the heating cable for heating described with reference to FIGS. And the bending pieces 315 and 355 are formed separately from the embodiment of Fig.

In detail, the cover-type terminal 300 according to the fourth embodiment, which is a substantial part of the heating cable for heating according to the present invention, presses both ends of the wire terminal part 310 and one side of the heating wire terminal part 350 The ends of the wire terminal portion 310 and the heating wire terminal portion 350 are connected to each other so that the end portions of the wire terminal portion 310 and the carbon heating element 210 of the heating wire 200 can be contacted with the conductor 110 of the wire 100 and the carbon heating element 210 of the heating wire 200, The end portions are formed by bending pieces 315 and 355 that are slit in a "U " shape at predetermined intervals along the circumferential direction and selectively bent inward by a pressing operation.

The bending pieces 315 and 355 are punched inward from the wire terminal part 310 and the outside of the heating wire terminal part 350 on one side so that the bending punching protruding pieces 316 and 356 are protruded inwardly .

The manufacturing method of the heating cable 1 for heating, to which the cover-type terminal 300 according to the fourth embodiment is applied, includes a wire arranging step, a wire connecting step, and a sealing finishing step.

Here, the wires are arranged in such a manner that the wires 100 and the heating wires 200 are arranged so that both ends of the heating wire 200 are closely contacted with the wires 100 arranged in a pair with a predetermined gap therebetween.

The wire connecting step may include connecting the wire 100 and the heating wire 200 through the wire rod arranging step to the cover terminal 300 having the wire terminal 310 and the heating wire terminal 350 And electrically connecting and fixing them.

The wire connecting step may include a step of connecting both ends of the wire terminal part 310 of the cover type terminal 300 and one end of the heating wire terminal part 350 of the cover type terminal 300 to the opposite ends of the press device 500 A slit (not shown) cut in a "T " shape across the center of one surface of the wire terminal portion 310 and the heating wire terminal portion 350 is formed through a pressing operation by the pressing protrusions 510 protruding from both sides of the press- U-shaped bent at a predetermined distance along the circumferential direction at both side ends of the wire terminal part 310 and one end of the heating wire terminal part 350, And a bending punching protruding piece 316 which is inwardly protruded and formed inward from the wire terminal portion 310 and the outside of the heating wire terminal portion 350 on one side of the bending pieces 315 and 355, , 156, the both ends of the electric wire terminal portion (310) The cover 120 of the electric wire 100 is pierced through the bending piece 315 and the bending punching protruding piece 316 while coming in contact with the conductor 110 to make a multiple point contact with the heating wire terminal portion 350 and the bending piece 355 and the bending punching protruding piece 356 while digging the outer surface 220 of the heating wire 200 while the one end of the heating wire 200 is inwardly moved in the circumferential direction by a certain amount, It is preferable that the process is a process of contacting.

The sealing finishing step is a step of covering the connection portion between the electric wire 100 and the heating wire 200 through the wire connecting step and sealing the outside of the cover-type terminal 300 connected and fixed through the insert injection molding. (400).

In the method for manufacturing the heating cable 1 for heating applied with the cover type terminal 300 according to the fourth embodiment as described above, the cover type terminal 300 having the above-described slit 301 and the toothed pieces 311 and 351 The electric wire 100 and the heating wire 200 are connected to both ends of the wire terminal portion 310 of the cover type terminal 300 and the end portion of the heating wire terminal portion 350 by a predetermined amount, And 355 and the bending and punching protruding pieces 316 and 356 and are electrically connected to each other by a multi-point contact type, can be simplified through automated processing.

The heating cable for heating according to the present invention has a slit 301 formed in a 'T' shape across a wire terminal portion 310 and a heating wire terminal portion 350 to connect the wire terminal portion 310 and the heating wire The electrical connection between the electric wire 100 and the heating wire 200 can be easily connected through the press operation in which the electric connection between the electric wire 100 and the heating wire 200 is automated by applying the cover type terminal 300 in which the terminal part 350 is pressed.

A slit 301 is formed in a 'T' shape across the wire terminal portion 310 and the heating wire terminal portion 350 so that the cover terminal 310 in which the wire terminal portion 310 and the heating wire terminal portion 350 are pressed The electric connection between the electric wire 100 and the heating wire 200 is easily performed through a press operation in which the electric wire 100 is electrically connected to the heating wire 200. Thus, So that the productivity of the heating cable for heating can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, the invention is not limited thereto. Various modifications may be made by those skilled in the art. Are included in the scope of the present invention.

1: Heating cable for heating
100: Wires
110: conductor 120: cloth
200: Heating line
210: carbon heating body 220: sheath
300: Covered terminal
301: slit 310: wire terminal portion
311: Teeth piece 313: Punching protrusion piece
315: Bending piece 316: Bending punching protrusion piece
350: Heating wire terminal part 351:
353: punching protrusion 355:
356: Bending punching protrusion piece
400: sealing cover
500: Press apparatus
510: pressing projection

Claims (10)

And a jacket 120 surrounding the conductor 110. The power cable 100 is connected to a power source to supply electricity and the jacket 220 is made of an insulating material to surround the carbon heating element 210. The jacket 220 A heating wire 200 connected in parallel in the longitudinal direction of the electric wire 100 and a conductive material provided in a conductive material so as to surround the connection portion of the electric wire 100 and the heating wire 200, And a sealing cover (400) closely attached to cover the outside of the cover-type terminal (300) through an insert injection molding. The heating cable (1)
The cover-type terminal 300 includes a wire terminal portion 310 that surrounds a connection portion between the electric wire 100 and the heating wire 200 in a "T" shape and a wire terminal portion 310 that surrounds the connection portion between the heating wire 200 and the electric wire 100 The heating wire terminal unit 350 is connected in a perpendicular manner,
Both end portions of the wire terminal portion 310 and one end portion of the heating wire terminal portion 350 are contacted with the conductor 110 of the wire 100 and the carbon heating element 210 of the heating wire 200 through a press operation, A slit 301 is formed in the wire terminal portion 310 and the heating wire terminal portion 350 at the center of one surface in a "T" shape,
Both end portions of the wire terminal portion 310 and one end portion of the heating wire terminal portion 350 are connected to the conductor 110 of the wire 100 and the carbon heating element 210 of the heating wire 200 by multi- To be able,
The both end portions of the wire terminal portion 310 and one end portion of the heating wire terminal portion 350 are bent in a U-shape along the circumferential direction to be bent inward by the press work, 355 are formed,
The bending pieces 315 and 355 are inwardly punched from one side of the wire terminal part 310 and the outside of the heating wire terminal part 350 so that the bending punching protrusions 316 and 356 are protruded inward Heating cable for heating. delete delete delete delete delete delete delete delete delete
KR1020150144419A 2015-10-16 2015-10-16 Heating cable and its fabricating method KR101775787B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150144419A KR101775787B1 (en) 2015-10-16 2015-10-16 Heating cable and its fabricating method

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KR101775787B1 true KR101775787B1 (en) 2017-09-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11502484B2 (en) 2020-02-14 2022-11-15 Nvent Services Gmbh Devices and methods for installation tools for use with splice kits

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001185251A (en) * 1999-12-28 2001-07-06 Daiei:Kk Solderless terminal for cable
KR200335418Y1 (en) * 2003-07-18 2003-12-11 김태규 Heater for heating

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001185251A (en) * 1999-12-28 2001-07-06 Daiei:Kk Solderless terminal for cable
KR200335418Y1 (en) * 2003-07-18 2003-12-11 김태규 Heater for heating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11502484B2 (en) 2020-02-14 2022-11-15 Nvent Services Gmbh Devices and methods for installation tools for use with splice kits

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