KR20160133071A - Heating cable having lead wire connected thereto for melting snow and method for manufacturing the same - Google Patents
Heating cable having lead wire connected thereto for melting snow and method for manufacturing the same Download PDFInfo
- Publication number
- KR20160133071A KR20160133071A KR1020150065600A KR20150065600A KR20160133071A KR 20160133071 A KR20160133071 A KR 20160133071A KR 1020150065600 A KR1020150065600 A KR 1020150065600A KR 20150065600 A KR20150065600 A KR 20150065600A KR 20160133071 A KR20160133071 A KR 20160133071A
- Authority
- KR
- South Korea
- Prior art keywords
- heating cable
- copper tube
- cylindrical portion
- lead wire
- wire
- Prior art date
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Images
Classifications
-
- 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
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/08—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
- H01B3/084—Glass or glass wool in binder
-
- 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
- H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Road Paving Structures (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
According to an aspect of the present invention, there is provided a method of manufacturing a semiconductor device, the method comprising: forming an insulated core wire by winding an outside of a heating wire with a glass fiber cloth to form an inorganic insulator; A copper tube coating step of inserting a copper tube into the outside of the insulation core wire and repeating contraction and drawing of the copper tube in a circular drawer to form a copper tube coating having a constant outside diameter; Forming an outer sheet sheath on the copper tube sheath to produce a heating cable; Performing cutting and stripping on the heating cable and the lead wire with reference to the calculated length with respect to the snowmelt area; Inserting and arranging the copper tube sleeve and the outer and inner heat-shrinkable tubes into the cutting and demolding heating cable sides; Mounting an MgO cylinder block on a heating wire of the melted heating cable; Connecting one end of a heating wire on which the MgO cylinder block is mounted and a lead core wire of the lead wire; Heating the outer heat-shrinkable tube, the heat-shrinkable tube including the lead core wire and the MgO cylinder block, covering the copper tube cover of the melted heating cable and the insulator of the detached lead wire, And the other cylindrical portion of the copper tube sleeve is arranged to cover a part of the insulator of the lead wire, and the other cylindrical portion of the copper tube sleeve is disposed so as to cover a part of the copper tube covering of the melted heating cable. Mounting the copper tube sleeve by pressing the one-side cylindrical portion of the disposed copper tube sleeve on the copper tube covering of the melted heating cable by using a circular presser to closely contact the copper tube sleeve; A ground connecting step of connecting and connecting a shield wire of a lead wire to a ground terminal formed at an end of the other cylindrical portion; An epoxy filling step of injecting and filling an epoxy resin composition into the inside of the copper tube sleeve; And mounting the outer heat-shrinkable tube by disposing the external heat-shrinkable tube including the outside of the copper tube sleeve and covering the outer sheet sheath of the heating cable and applying heat thereto; The method for manufacturing a heating cable for snow melting, to which a lead wire is connected, is provided.
Description
The present invention relates to a heating cable for snow melting, to which a lead wire is connected, and a method of manufacturing the same.
The heating cable for snowmelting is a hot-wire cable used to prevent ice from freezing in winter.
In general, the snow melting system using the heating cable for snow melting automatically senses the temperature and humidity of the icing generator caused by the snow in winter by using the sensor that can detect the temperature and humidity on the surface and the heating cable inside the road surface, And performs an ice-making function.
The snow melting system using the heating cable for snowmelting is used to install cables on sloping roads, bridges, roads with heavy freezing due to shade, ramps on the building parking lots, Can be prevented.
FIG. 1 shows a conventional heating cable system for snow melting installed on a road.
2 shows a structure of a conventional heating cable.
A
In addition, the
Referring to FIGS. 1 and 2, a
Such a
The connecting
Since the connecting
The reason for this is that there is a gap due to the unevenness of the internal insulation space due to the external pressure and the insulation layer hardening due to the repeated heating of the heating line at the connection portion or the insulation is broken due to the inflow of air and moisture, .
The background art of the present invention is disclosed in Korean Patent Registration No. 10-1241342.
The present invention provides a heating cable for snow melting, in which deformation of an internal connection portion is suppressed against an external mechanical external force, a failure due to insulation breakage is reduced, and a lifetime can be extended, and a manufacturing method thereof.
According to an aspect of the present invention, there is provided a method of manufacturing a semiconductor device, the method comprising: forming an insulated core wire by winding an outside of a heating wire with a glass fiber cloth to form an inorganic insulator; A copper tube coating step of inserting a copper tube into the outside of the insulation core wire and repeating contraction and drawing of the copper tube in a circular drawer to form a copper tube coating having a constant outside diameter; Forming an outer sheet sheath on the copper tube sheath to produce a heating cable; Performing cutting and stripping on the heating cable and the lead wire with reference to the calculated length with respect to the snowmelt area; Inserting and arranging the copper tube sleeve and the outer and inner heat-shrinkable tubes into the cutting and demolding heating cable sides; Mounting an MgO cylinder block on a heating wire of the melted heating cable; Connecting one end of a heating wire on which the MgO cylinder block is mounted and a lead core wire of the lead wire; Heating the outer heat-shrinkable tube, the heat-shrinkable tube including the lead core wire and the MgO cylinder block, covering the copper tube cover of the melted heating cable and the insulator of the detached lead wire, And the other cylindrical portion of the copper tube sleeve is arranged to cover a part of the insulator of the lead wire, and the other cylindrical portion of the copper tube sleeve is disposed so as to cover a part of the copper tube covering of the melted heating cable. Mounting the copper tube sleeve by pressing the one-side cylindrical portion of the disposed copper tube sleeve on the copper tube covering of the melted heating cable by using a circular presser to closely contact the copper tube sleeve; A ground connecting step of connecting and connecting a shield wire of a lead wire to a ground terminal formed at an end of the other cylindrical portion; An epoxy filling step of injecting and filling an epoxy resin composition into the inside of the copper tube sleeve; And mounting the outer heat-shrinkable tube by disposing the external heat-shrinkable tube including the outside of the copper tube sleeve and covering the outer sheet sheath of the heating cable and applying heat thereto; The method for manufacturing a heating cable for snow melting, to which a lead wire is connected, is provided.
The copper tube sleeve includes a first straight cylindrical portion having a first outer diameter, an inclined portion extending from the first straight cylindrical portion and having a tapered inclined angle, and a second inclined portion extending from the inclined portion, The second straight cylindrical portion having a second outer diameter larger than the first straight cylindrical portion, and the ground terminal is formed at the end of the second straight cylindrical portion.
The length of the second straight cylindrical portion is 75 to 80 mm, the diameter of the second straight cylindrical portion is 12 to 14 mm, and the length of the first straight cylindrical portion is 20 To 25 mm, and the diameter of the first straight cylindrical portion is 9 to 11 mm.
The insulated core wire may be formed by forming a transversely wound inorganic insulator having the glass fiber yarn wound in a spiral shape on the outside of the heating element and then forming a flat inorganic insulator in which the glass fiber yarn is wound in a zigzag form on the outside of the transversely wound inorganic insulator As shown in FIG.
The MgO cylinder block may contain 20 to 80% by weight of MgO powder, acetate, alcohol, ketone, xylene, terpineol, and Texanol. Mixing 20 to 80% by weight of one solvent, extruding it into a cylindrical shape, and drying it.
In the epoxy filling step, the epoxy resin composition is injected through the space between the second straight cylindrical portion and the insulator of the lead wire in a state in which the copper tube sleeve is vertically arranged so that the first straight cylindrical portion is positioned below the epoxy resin composition. And is filled by injection.
The step of mounting the outer heat-shrinkable tube may include disposing a first outer heat-shrinkable tube so as to cover one side of the outer sheet covering of the heating cable and the first straight cylindrical portion, A first outer heat shrink tube attaching step of applying heat to the outside of the first heat shrink tube to shrink the heat; And a second outer heat shrink tube is disposed so as to cover one side of the outer sheet sheath of the heating cable and one side of the outer sheath of the lead wire beyond the portion where the mounted first outer heat shrink tube is mounted, And a second external heat shrink tube attaching step of applying heat to the outside of the second external heat shrink tube to shrink and adhere the second external heat shrink tube.
The transversely wound inorganic insulator is 80 to 90% of the thickness of the total inorganic insulator, and the flat inorganic insulator is 10 to 20% of the total thickness of the inorganic insulator.
According to another aspect of the present invention, a copper tube coating is formed on the outside of an insulated core wire which forms an inorganic insulator by winding the outside of a heating wire with a glass fiber cloth in a transverse direction and a braid, and a high density polyethylene (HDPE) A heating cable coated with an outer sheet; A Mg cylinder block is inserted into a heating line deviated to a second length with respect to a copper pipe sheathed to a first length of the outer sheet covering of the heating cable, and the MgO cylinder block is connected to one end of the heating wire, A connection portion to which a core wire is connected by a compression sleeve; An inner heat-shrinkable tube which is covered by the copper pipe covering and the connecting portion and the outer covering of the lead wire so as to cover one side of the insulator and is mounted by heat shrinkage; Wherein the one side cylindrical portion covers a part of the copper pipe covering of the demolded heating cable and the other cylindrical portion covers the part of the insulator of the lead wire, A copper pipe sleeve mounted on the copper pipe of the molten heating cable by being pressed and adhered thereto; An epoxy resin composition filling the inside of the copper tube sleeve; A grounding portion connecting the shield wire of the lead wire to one side of the copper tube sleeve; A first outer heat-shrinkable tube which covers one side of the cover sheet of the heating cable and the one-side cylindrical portion and is contracted; And a second outer heat-shrinkable tube which covers one side of the outer sheet of the heating cable beyond the portion where the first outer heat-shrinkable tube is mounted and the outer covering of the lead wire to cover and shrink; The present invention provides a heating cable for snowmelt to which a lead wire is connected.
The heating cable for snow melting according to an embodiment of the present invention has better resistance to moisture and mechanical strength than conventional mineral insulators and provides higher insulation and reliability, can quickly manufacture an inorganic insulator, An insulator can be formed.
Further, the heating cable for snow melting, to which the lead wire is connected, according to an embodiment of the present invention, It is possible to provide a connection portion having resistance to cracking that can withstand stress and to prevent the heating line from being deformed by external mechanical external force inside the connection portion to prevent insulation failure.
FIG. 1 shows a heating cable system for snow melting installed on a conventional road.
2 shows a structure of a conventional heating cable.
3 shows an example of a heating cable for snow melting according to an embodiment of the present invention.
4 illustrates a structure of a heating cable for snow melting connected with lead wires according to an embodiment of the present invention.
5 illustrates a process for manufacturing a heating cable for snow melting, to which a lead wire is connected, according to an embodiment of the present invention.
While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities.
It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of known related arts will be omitted when it is determined that the gist of the present invention may be unnecessarily obscured.
In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.
3 shows an example of a heating cable for snow melting according to an embodiment of the present invention.
The
The
Further, the glass fibers used as the
The metal sheath can be compression bonded by passing a copper or aluminum tube through a compression drawer.
In one embodiment of the present invention, the metal sheath is made of a
The
A
The
4 illustrates a structure of a heating cable for snow melting connected with lead wires according to an embodiment of the present invention.
Referring to FIG. 4, the
5 illustrates a process for manufacturing a heating cable for snow melting, to which a lead wire is connected, according to an embodiment of the present invention.
Referring to FIG. 5, an insulated
The insulated core wire according to an embodiment of the present invention is formed of
The insulation core wire 30 according to an embodiment of the present invention may be manufactured by winding a glass fiber yarn from the outside of a
According to one embodiment of the present invention, by making the transverse-wound
Next, the outer side of the primary transverse winding type
The braid is made by arranging the glass fiber yarns in two directions of zigzag and zigzag, so that the mechanical strength of wrapping the outside is kept more dense and strong than the horizontal one, and the bendability is improved.
The inorganic insulating layer which is double-woven in the transverse direction and the braided according to an embodiment of the present invention has an advantage that it can be manufactured faster than the braided furnace, while having both the compactness and the mechanical strength.
Conventionally, instead of the glass fiber, a method of covering a conductor with a mineral type material such as magnesium oxide has been used. However, this method is weak in moisture and has a complicated manufacturing process. In the present invention, a fiber glass material do. These glass fibers are made of fibers by melting non-alkali vitreous materials from platinum furnace and drawing them out of small holes. Since they have no property of accumulating or absorbing moisture, there is no risk of dielectric breakdown due to moisture, have. In addition, the glass fiber has higher mechanical strength than the conventional mineral insulator, thereby providing higher insulation and reliability, and can maintain a high temperature due to the characteristics of the glass fiber. Further, when the
After the insulation
In the metal coating
After the metal
In the outer
The completed
Next, a step of connecting the heating cable to the lead wire is performed.
Referring to FIG. 5, the
First, in the heating cable length cutting step, the heating cable length is calculated in consideration of the area required for snowmelting and the working voltage, and cut out is performed with a margin of 100 to 120 mm at both ends for the connecting length to the calculated length .
Next, the length for connection from the boundary point where the snowmelt is installed to the control panel or the junction box (J / B) is calculated, and the lead wire with a margin of 50 ~ Cut it.
After the cutting process, the removing process is performed.
In the heating cable stripping process, the HDPE jacket, which is the outer sheet covering 23, is firstly melted by 90 to 100 mm to expose the copper pipe covering 22.
Next, the glass tube inorganic insulator is peeled off using a pipe cutter with the
Next, the
Next, the
Referring again to FIG. 5, a metal protective tube and heat shrink
According to one embodiment of the present invention, the metal protection tube is made of a
In the metal protecting tube and heat shrink
4, the outer heat-shrinkable tube according to an embodiment of the present invention includes a first outer heat-
In another embodiment of the present invention, when the first outer heat-
According to one embodiment of the present invention, the first outer heat
According to an embodiment of the present invention, the
A ground terminal is formed at the end of the second straight
According to an embodiment of the present invention, the total length of the
The outer heat-shrinkable tube and the copper tube sleeve function to prevent water tightness and to protect the internal connection part from the harsh characteristics such as repetitive shocks and vibration caused by the connection part being located at the lower end of the packaging surface such as a road or a lead.
Next, in order to prepare the heat shrink tube attaching step, the inner heat shrink tube is inserted into the lead wire side beforehand and arranged at a predetermined position.
Referring to FIG. 4, the inner heat-shrinkable tube according to an embodiment of the present invention includes a first inner heat-
According to one embodiment of the present invention, the first inner heat-
After the metal protection tube, outer and heat shrink tube insertion steps 450, the MgO cylinder
The
According to one embodiment of the present invention, the
The
According to an embodiment of the present invention, by mounting the
Further, it is possible to prevent the heating line from being protected by the
According to an embodiment of the present invention, the
First, a step of mixing the MgO powder with the solvent to make the dough is carried out.
The step of making the dough is to make the MgO powder of insulative minerals mixed with the solvent into a dough-like mineral insulator.
In the step of mixing the MgO powder with the solvent to form a dough, a solvent such as acetate, alcohol, ketone, xylene, terpineol, Can be used. In the selection of a solvent, MgO powder may be dissolved in any solvent to prepare a kneaded state.
The amount of the magnesium oxide powder to be added is preferably about 20 to 80% by weight of the total kneading amount (powdery MgO + solvent) depending on the solvent. When the MgO powder is added in an amount of less than 20% by weight, the MgO flows down before reaching a subsequent step in which the dough is thinned to be dried and coated on the conductor, or it takes too long time for drying and solidification, , The physical strength of the MgO coating is lowered, making it impossible to make a sufficiently long conductor. On the other hand, if the MgO powder is added in an amount exceeding 80% by weight, the viscosity of the dough becomes too high, which requires an excessively large pressure during extrusion, and the processability may not be smooth due to poor formability.
According to one embodiment of the present invention, the dough is introduced into a cylindrical mold, which is a molding die of a shape to be manufactured, and is extruded into a cylindrical shape by casting in a pipe shape or by kneading.
In the drying step, the kneaded form of the extruded cylinder is dried in a drying furnace for a certain period of time, and the mixed solvent is dried to solidify the kneaded product into a cylindrical shape in order to make a dough.
When solidified as above, a cylindrical MgO cylinder can be formed. The MgO cylinder is cut to an appropriate length to produce an
According to another embodiment of the present invention, the step of inserting the metal protective tube, the outer and inner
After the next MgO cylinder
In the heating wire and lead
Then, the inner heat shrink
In the inner heat shrink
Next, the second inner heat-
Referring again to FIG. 4, a metal guard
In the metal protective
Next, the first straight cylindrical portion of the disposed
Next, a
In the
According to the embodiment of the present invention, the shielding line of the copper tube cover and the lead wire are electrically connected as described above, and the response reliability according to the measurement of the leakage current through the ground at the time of leakage is increased.
After the
In the
According to one embodiment of the present invention, the
The connecting part of the heating cable for snow melting is located at the bottom of the pavement such as the road or the stairs, and receives vibration and shock continuously.
Therefore, the epoxy filler according to one embodiment of the present invention adopts an epoxy resin composition having the characteristics of insulation and flame retardancy and having flexibility to absorb vibration and impact even after curing.
An epoxy resin composition suitable for connection of a heating cable for snowmelting according to an embodiment of the present invention includes an epoxy base and additives for curing and flexibility.
According to one embodiment of the present invention, the epoxy base is composed of 20 to 40% by weight of biphenyl type epoxy resin or bisphenol type epoxy resin, 40 to 60% by weight of high acid epoxy acrylate resin and 20 to 40% by weight of acid denatured polycarbonate do.
The additive is such that the epoxy comprises 0.5-1.5 parts by weight of a curing agent, 0.01-1 parts by weight of a curing accelerator, and 0.5-1.5 parts by weight of a reinforcing filler, based on the subject.
The epoxy curing agent according to one embodiment of the present invention is composed of at least one selected from amine curing agents, acid anhydride curing agents, imidazole, adipic acid and active ester curing agents.
Examples of the curing accelerator according to one embodiment of the present invention include imidazoles such as 2-methylimidazole and 2-phenylimidazole, phosphines such as triphenylphosphine, phenols such as 2,4,6-trisaminomethylphenol, Amines such as hexamethylenetetramine and the like are used.
The reinforcing filler for flame retardancy and crack resistance according to one embodiment of the present invention is barium sulfate barium sulfate, calcium silicate, horseradish fiber, carbon fiber, etc., and the average particle diameter of the filler is 0.5 to 75 탆.
Referring again to FIG. 5, after the epoxy resin composition injected in the
The outer heat shrink
Next, the second outer heat
The heating cable for snow melting according to an embodiment of the present invention has better moisture resistance and mechanical strength than conventional mineral insulators, provides higher insulation and reliability, can quickly produce an inorganic insulator process, An inorganic insulator can be formed.
Further, the heating cable for snow melting, to which the lead wire is connected, according to an embodiment of the present invention, It is possible to provide a connection portion having resistance to cracking that can withstand stress and to prevent the heating line from being deformed by external mechanical external force inside the connection portion to prevent insulation failure.
10, 300: Heating cable
11: Lead core
12: Insulator
21, 301: Heating wire
22, 304: copper tube cloth
23, 304: covering sheet of heating cable
31: MgO cylinder block
41: sheathing of lead wires
42: Ground terminal
43:
51, 52, 55, 56: Heat shrinkable tube
60: Dongguan sleeve
67: Epoxy filler
302, 303: Inorganic insulator
Claims (10)
A copper tube coating step of inserting a copper tube into the outside of the insulation core wire and repeating contraction and drawing of the copper tube in a circular drawer to form a copper tube coating having a constant outside diameter;
Forming an outer sheet sheath on the copper tube sheath to produce a heating cable;
Performing cutting and stripping on the heating cable and the lead wire with reference to the calculated length with respect to the snowmelt area;
Inserting and arranging the copper tube sleeve and the outer and inner heat-shrinkable tubes into the cutting and demolding heating cable sides;
Mounting an MgO cylinder block on a heating wire of the melted heating cable;
Connecting one end of a heating wire on which the MgO cylinder block is mounted and a lead core wire of the lead wire;
Heating the outer heat-shrinkable tube, the heat-shrinkable tube including the lead core wire and the MgO cylinder block, covering the copper tube cover of the melted heating cable and the insulator of the detached lead wire,
And the other cylindrical portion of the copper tube sleeve is arranged to cover a part of the insulator of the lead wire, and the other cylindrical portion of the copper tube sleeve is disposed so as to cover a part of the copper tube covering of the melted heating cable. Mounting the copper tube sleeve by pressing the one-side cylindrical portion of the disposed copper tube sleeve on the copper tube covering of the melted heating cable by using a circular presser to closely contact the copper tube sleeve;
A ground connecting step of connecting and connecting a shield wire of a lead wire to a ground terminal formed at an end of the other cylindrical portion;
An epoxy filling step of injecting and filling an epoxy resin composition into the inside of the copper tube sleeve; And
Disposing the outer heat-shrinkable tube including the outside of the copper tube sleeve so as to cover the outer sheet sheath of the heating cable and applying heat thereto; A method for manufacturing a heating cable for snowmelt having a lead wire connected thereto
Wherein the copper tube sleeve has a first straight cylindrical portion formed with a first outer diameter, an inclined portion extending from the first straight cylindrical portion and having a tapered inclined angle, and a second inclined portion extending from the inclined portion, A second straight cylindrical portion having a second outer diameter,
And the grounding terminal is formed at a distal end of the second straight cylindrical part. The method for manufacturing a heating cable for snowmelt having a lead wire connected thereto
The copper tube sleeve has a horizontal length of 95 to 105 mm,
The length of the second straight cylindrical portion is 75 to 80 mm, the diameter of the second straight cylindrical portion is 12 to 14 mm,
Wherein the length of the first straight cylindrical portion is 20 to 25 mm and the diameter of the first straight cylindrical portion is 9 to 11 mm. The method for manufacturing a heating cable for snowmelt having a lead wire connected thereto
The insulated core wire is formed by forming a transversely wound inorganic insulator having the glass fiber yarn wound in the form of a spiral on the outside of the heating element and then forming a warp-shaped inorganic insulator in which the glass fiber yarn is wound in a zigzag form on the outside of the transversely- A method for manufacturing a heating cable for snow melting, to which a lead wire is connected
In the MgO cylinder block,
20 to 80 wt% of MgO powder, 20 to 80 wt% of a solvent selected from the group consisting of acetate, alcohol, ketone, xylene, terpineol, and texanol, %, And then extruding the mixture into a cylinder shape, and drying the mixture. The method for manufacturing a heating cable for snow melting, to which a lead wire is connected
In the epoxy filling step,
And the epoxy resin composition is injected through a space between the second straight cylindrical portion and the insulator of the lead wire in a state where the copper tube sleeve is vertically arranged so that the first straight cylindrical portion is located below the first straight cylindrical portion. How to manufacture heating cable for snowmelt with lead wire
The step of mounting the outer heat-
A first outer heat shrinkable tube is disposed so as to cover one side of the outer sheet sheath of the heating cable and the first straight cylindrical portion and then the first outer heat shrinkable tube is disposed in a first An outer heat shrink tube mounting step; And
After arranging the second outer heat shrinkable tube so as to cover one side of the outer sheet covering of the heating cable and one side of the outer covering of the lead wire over the portion where the mounted first outer heat shrinkable tube is mounted, And a second outer heat-shrinkable tube mounting step of applying heat to the outside of the second external heat-shrinkable tube to shrink and adhere the second external heat-shrinkable tube to the second external heat-shrinkable tube.
Wherein the widthwise inorganic insulator is 80 to 90% of the thickness of the total inorganic insulator, and the flat inorganic insulator is 10 to 20% of the total thickness of the inorganic insulator. The heating cable for snow melting, to which the lead wire is connected
A Mg cylinder block is inserted into a heating line deviated to a second length with respect to a copper pipe sheathed to a first length of the outer sheet covering of the heating cable, and the MgO cylinder block is connected to one end of the heating wire, A connection portion to which a core wire is connected by a compression sleeve;
An inner heat-shrinkable tube which is covered by the copper pipe covering and the connecting portion and the outer covering of the lead wire so as to cover one side of the insulator and is mounted by heat shrinkage;
Wherein the one side cylindrical portion covers a part of the copper pipe covering of the demolded heating cable and the other cylindrical portion covers the part of the insulator of the lead wire, A copper pipe sleeve mounted on the copper pipe of the molten heating cable by being pressed and adhered thereto;
An epoxy resin composition filling the inside of the copper tube sleeve;
A grounding portion connecting the shield wire of the lead wire to one side of the copper tube sleeve;
A first outer heat-shrinkable tube which covers one side of the cover sheet of the heating cable and the one-side cylindrical portion and is contracted; And
A second outer heat-shrinkable tube that covers one side of the outer sheet of the heating cable beyond the portion where the first outer heat-shrinkable tube is mounted and the outer sheath of the lead wire to cover and shrink; A heating cable for snow melting, to which a lead wire is connected,
Wherein the copper tube sleeve has a first straight cylindrical portion formed with a first outer diameter, a tapered inclined portion extending from the first straight cylindrical portion and having a predetermined inclination angle, and a second inclined portion extending from the inclined portion, A second straight cylindrical portion having a second outer diameter,
And a grounding terminal is formed at a distal end of the second straight cylindrical portion. A heating cable for snowmelt having a lead wire connected thereto
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| KR1020150065600A KR101682160B1 (en) | 2015-05-11 | 2015-05-11 | Heating cable having lead wire connected thereto for melting snow and method for manufacturing the same |
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| KR1020150065600A KR101682160B1 (en) | 2015-05-11 | 2015-05-11 | Heating cable having lead wire connected thereto for melting snow and method for manufacturing the same |
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| KR101682160B1 KR101682160B1 (en) | 2016-12-05 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107071936A (en) * | 2017-05-19 | 2017-08-18 | 佛山市高明毅力温控器有限公司 | Insulation heating wire and power line connection structure and its manufacture method with mesh grid |
| KR20180088090A (en) * | 2017-01-26 | 2018-08-03 | 영창실리콘 주식회사 | Protection method and structure of heating cable power connection part |
| CN109788587A (en) * | 2019-04-03 | 2019-05-21 | 常州西玛特电器有限公司 | A kind of heating device |
| CN110925597A (en) * | 2019-11-04 | 2020-03-27 | 张家港富瑞阀门有限公司 | Novel high-pressure hydrogen integrated cylinder valve wire harness |
| KR102195531B1 (en) * | 2020-03-25 | 2020-12-28 | (주)우신이앤씨 | Heatiing cable for heating, heat pipe for heating using the same and heating system including them |
| KR102304126B1 (en) * | 2021-03-25 | 2021-09-23 | 주식회사 태담 | Heating Cable for Melting of Icing, Black Ice and Snow and Icing, Black Ice and Snow Melting System Using the Same |
| KR20210148687A (en) * | 2020-06-01 | 2021-12-08 | 주식회사 한국엠아이씨 | maintaining structure and maintaining method of heating cable for snow-melting |
| KR20210157998A (en) * | 2020-06-23 | 2021-12-30 | 주식회사 한국엠아이씨 | Heating cable for snow-melting, snowmelting system using the same |
| KR102400769B1 (en) * | 2021-08-24 | 2022-05-24 | (주)동양후로아 | Porous Concrete Block with Embedded Heating Cable for Snow Melting |
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| KR102186877B1 (en) | 2019-08-21 | 2020-12-07 | 한국생산기술연구원 | Method for manufacturing heat resistant carbon fiber heating cable having uniform outer diameter and heat resistant carbon fiber heating cable |
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| WO2021194002A1 (en) * | 2020-03-25 | 2021-09-30 | (주)우신이앤씨 | Heating cable for heating and heat-transfer pipe for heating using same |
| KR20210148687A (en) * | 2020-06-01 | 2021-12-08 | 주식회사 한국엠아이씨 | maintaining structure and maintaining method of heating cable for snow-melting |
| KR20210157998A (en) * | 2020-06-23 | 2021-12-30 | 주식회사 한국엠아이씨 | Heating cable for snow-melting, snowmelting system using the same |
| KR102304126B1 (en) * | 2021-03-25 | 2021-09-23 | 주식회사 태담 | Heating Cable for Melting of Icing, Black Ice and Snow and Icing, Black Ice and Snow Melting System Using the Same |
| KR102400769B1 (en) * | 2021-08-24 | 2022-05-24 | (주)동양후로아 | Porous Concrete Block with Embedded Heating Cable for Snow Melting |
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