CN201536431U - Electric heating twisted line externally coated with insulating layer - Google Patents
Electric heating twisted line externally coated with insulating layer Download PDFInfo
- Publication number
- CN201536431U CN201536431U CN200920311864XU CN200920311864U CN201536431U CN 201536431 U CN201536431 U CN 201536431U CN 200920311864X U CN200920311864X U CN 200920311864XU CN 200920311864 U CN200920311864 U CN 200920311864U CN 201536431 U CN201536431 U CN 201536431U
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- twisted wire
- electric heating
- twisted
- twisted line
- wire
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Abstract
The utility model relates to an electric heating twisted line externally coated with an insulating layer. The twisted line comprises 3-150 ultrathin alloy wires whose diameters are 0.028-0.18mm for conducting primary twisting or secondary twisting. The area of the periphery of the cross section of the twisted line is 0.01-1.3 square millimeters, and meter resistance is 0.1-1500 Euro/meters. The electric heating twisted line is safe and reliable, and has long service span and wider application scope.
Description
Technical field
The utility model relates to a kind of electric heating wire of exterior insulation.
Background technology
At present, adopt the mode of heating of gentle electric heating system to be widely used in fields such as automotive seat, house life and oil transportation, the reliability of heater wherein, fail safe then are the long-term basic assurances of using of electric heating system.The electrical heating wire that first generation electric heating system adopts is after the bar drawing with metallic conductor becomes the wire in alignment footpath, coats outside to process as polyethylene (PE), polypropylene (PP), polyvinyl chloride macromolecule insulating material such as (PVC).Though this electrical heating wire also can satisfy the instructions for use in the certain limit, if electrical heating wire in use damages then whole electric heating system complete failure owing to overheated or mechanical damage cause any place.So the heating wire of high reliability is long-term, the efficient assurance of using of electric heating system.Second generation electric heating system has adopted the carbon fiber heating technique, compares with first generation heating system, and it has good reliability, advantages such as homogeneous heating.But the processability of its special-shaped pattern is poor and be connected with electrode and unreliablely cause sparking easily, cost an arm and a leg.In addition, China does not still have the ability of producing carbon fiber in batches at present, and its source relies on substantially from the U.S. and Japanese import, has so just restricted the development of this technology in China indirectly yet.
Chinese patent literature CN2751505Y has announced a kind of PTC alloy tandem ribbon heater that is used for long conveyance conduit, it is made of anticorrosive coat, wire sheathing, casing play, insulating barrier and heat generating core, heat generating core has wherein adopted stranded technology, and sectional area is 1.5 to 35 square millimeters.The main purpose of this technical scheme is the heat generating core that obtains certain sectional area and certain resistivity, thereby can be according to useful life and heat load design tandem ribbon heater.But its range of application is narrower.
The utility model content
The purpose of this utility model provides the electric heating twisted wire of the outsourcing insulation of a kind of safe and reliable, long service life and range of application broad.
The technical scheme that realizes the utility model purpose is that the electric heating twisted wire of outsourcing insulation of the present utility model comprises twisted wire and insulating barrier, it is characterized in that: twisted wire directly is that 0.028 to 0.18 millimeter superfine alloy silk carries out once stranded or twice stranding constitutes by 3 to 150 lines; The peripheral included area in the cross section of twisted wire is 0.01 to 1.3 square millimeter, and rice resistance is 0.1 to 1500 Europe/rice.
Above-mentioned twisted wire is undertaken once stranded by 3 to 60 superfine alloy silks and constitutes; The peripheral included area in the cross section of twisted wire is 0.01 to 0.75 square millimeter.
Above-mentioned twisted wire carries out twice stranding by 30 to 150 superfine alloy silks and constitutes, and also i.e. grouping is twisted into and carries out stranded again behind 2 to 50 strands of twisted wires and constitute, and per share twisted wire comprises 3 to 20 superfine alloy silks; The peripheral included area in the cross section of twisted wire is 0.30 to 1.3 square millimeter.
Above-mentioned insulating barrier is coated on the twisted wire outer surface, and insulating barrier adopts insulating polymeric material.
The utlity model has positive effect: (1) electric heating twisted wire of the present utility model is closed by the various alloy skein silks in many superfine wires footpath and carries out stranded forming again after forming or be twisted into respectively the multiply alloy wire, single alloy silk damages, and does not influence the work of whole electric heating system.(2) alloy silk of the present utility model can be copper alloy, nickel chromium triangle series alloy, stainless steel series or siderochrome aluminium series alloy.Electric heating twisted wire of the present utility model can be that single alloy skein silk closes and forms, and also can be that several different alloy skein silks close and form, and finished product electric heating twisted wire can satisfy automotive seat, multi-field instructions for use such as life and oil transportation at home.(2) the outside heat-proof macromolecule insulating material that coats of twisted wire of the present utility model can be poly-fluorine serial plastic, poly(4-methyl-1-pentene) (TPX), thermoplasticity second third elastomer (EPDM-PP) or thermoplastic polyester elastomer (TPEE) etc., wherein poly-fluorine serial plastic comprises: polytetrafluoroethylene (PTFE), perfluoroethylene-propylene (FEP), Kynoar (PVDF), polyvinyl fluoride (ETFE), tetrafluoroethene-perfluorinated alkoxy vinyl ether copolymer (PFA), vinylidene-chlorotrifluoroethylene (VDF-CTFE), Kynoar-hexafluoropropylene copolymer (PVDF-HFP), ethene-trifluoro-ethylene copolymer (ECTFE), ethylene-tetrafluoroethylene copolymer (ETFE) etc.These plastics all have the excellent electric insulating energy, higher serviceability temperature (〉=130 ℃) and good bending resistance folding endurance, thus guaranteed reliability and fail safe in its use, effectively prolonged the useful life of twisted wire.
Description of drawings
Fig. 1 is the perspective view of present embodiment 1.
Fig. 2 is the perspective view of present embodiment 2.
Fig. 3 is the perspective view of present embodiment 4.
Above-mentioned Reference numeral is as follows:
Embodiment
(embodiment 1)
See Fig. 1, the electric heating twisted wire of the outsourcing insulation of present embodiment comprises twisted wire 1 and insulating barrier 2.
Insulating barrier 2 is that main component is the insulating polymeric material of poly(4-methyl-1-pentene) (TPX), is coated on the outside of twisted wire 1.
Add man-hour, earlier 7 alloy silks 11 evenly are arranged in respectively carry out on the stranding machine frame stranded, then with poly(4-methyl-1-pentene) (TPX) heating and melting in extruder, gained twisted wire 1 is through traction, after passing the insulating polymeric material of fusion, by specific extrusion neck ring mold centre bore, behind the water-cooled shaping, promptly obtain the electric heating twisted wire that poly(4-methyl-1-pentene) (TPX) coats, the long-term serviceability temperature of this lead can reach 130 ℃.
(embodiment 2)
See Fig. 2, the electric heating twisted wire of the outsourcing insulation of present embodiment comprises twisted wire 1 and insulating barrier 2.
Insulating barrier 2 is that main component is the insulating polymeric material of tetrafluoroethene perfluorinated alkoxy vinyl ether copolymer (PFA).
Add man-hour, earlier 19 alloy silks 11 evenly are arranged in respectively carry out on the stranding machine frame stranded, then with tetrafluoroethene perfluorinated alkoxy vinyl ether copolymer (PFA) heating and melting in extruder, gained twisted wire 1 is through traction, after passing the insulating polymeric material of fusion, by specific extrusion neck ring mold centre bore, behind the water-cooled shaping, promptly obtain the electric heating twisted wire that tetrafluoroethene-perfluorinated alkoxy vinyl ether copolymer (PFA) coats.The long-term serviceability temperature of this lead can reach 200 ℃.
(embodiment 3)
The remainder of the electric heating twisted wire of the outsourcing insulation of present embodiment is identical with embodiment 1, and difference is: single alloy silk 11 is Contra wire (nickel content is 2%, and all the other are copper), and line directly is 0.10 millimeter, and rice resistance is 6.4 Europe/rice.The rice resistance of twisted wire 1 is 0.95 Europe/rice.
Insulating barrier 2 is that main component is the insulating polymeric material of thermoplasticity second third elastomer (EPDM-PP).
Add man-hour, earlier 7 alloy silks 11 evenly are arranged in respectively carry out on the stranding machine frame stranded, then with thermoplasticity second third elastomer (EPDM-PP) heating and melting in extruder, gained twisted wire 1 is through traction, after passing the insulating polymeric material of fusion, by specific extrusion neck ring mold centre bore, rolling behind the water-cooled shaping, be to carry out vulcanization crosslinking on 80 to 180 ℃ the solid-state sulfuration bed in temperature, promptly obtain the electric heating twisted wire that thermoplasticity second third elastomer (EPDM-PP) coats.The long-term serviceability temperature of this lead can reach 150 ℃.
(embodiment 4)
See Fig. 3, the remainder of the electric heating twisted wire of the outsourcing insulation of present embodiment is identical with embodiment 1, difference is: twisted wire 1 is to be divided into 7 groups by 49 superfine alloy silks 11, after every group of 7 superfine alloy silks 11 are twisted into 1 strand of twisted wire separately, carry out 7 strands of twisted wires stranded again and constitutes.
Claims (4)
1. the electric heating twisted wire of an outsourcing insulation comprises twisted wire (1) and insulating barrier (2), it is characterized in that: twisted wire (1) directly is that 0.028 to 0.18 millimeter superfine alloy silk (11) carries out once stranded or twice stranding constitutes by 3 to 150 lines; The peripheral included area in the cross section of twisted wire (1) is 0.01 to 1.3 square millimeter, and rice resistance is 0.1 to 1500 Europe/rice.
2. according to the electric heating twisted wire of the described outsourcing insulation of claim 1, it is characterized in that: described twisted wire (1) is undertaken once stranded by 3 to 60 superfine alloy silks (11) and constitutes; The peripheral included area in the cross section of twisted wire (1) is 0.01 to 0.75 square millimeter.
3. according to the electric heating twisted wire of the described outsourcing insulation of claim 1, it is characterized in that: described twisted wire (1) carries out twice stranding by 30 to 150 superfine alloy silks (11) and constitutes, also i.e. grouping is twisted into and carries out stranded again behind 2 to 20 strands of twisted wires and constitute, and per share twisted wire comprises 3 to 60 superfine alloy silks (11); The peripheral included area in the cross section of twisted wire (1) is 0.30 to 1.3 square millimeter.
4. according to the electric heating twisted wire of the described a kind of outsourcing insulation of claim 1, it is characterized in that: described insulating barrier (2) is coated on twisted wire (1) outer surface, and insulating barrier (2) adopts insulating polymeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920311864XU CN201536431U (en) | 2009-09-29 | 2009-09-29 | Electric heating twisted line externally coated with insulating layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920311864XU CN201536431U (en) | 2009-09-29 | 2009-09-29 | Electric heating twisted line externally coated with insulating layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201536431U true CN201536431U (en) | 2010-07-28 |
Family
ID=42536204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920311864XU Expired - Fee Related CN201536431U (en) | 2009-09-29 | 2009-09-29 | Electric heating twisted line externally coated with insulating layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201536431U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107079536A (en) * | 2015-08-13 | 2017-08-18 | 金势玲 | The manufacture method and its heater and application method of heater |
| CN111521930A (en) * | 2020-05-13 | 2020-08-11 | 山东省产品质量检验研究院 | Fault current limiting resistor and fault current detection device |
-
2009
- 2009-09-29 CN CN200920311864XU patent/CN201536431U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107079536A (en) * | 2015-08-13 | 2017-08-18 | 金势玲 | The manufacture method and its heater and application method of heater |
| CN111521930A (en) * | 2020-05-13 | 2020-08-11 | 山东省产品质量检验研究院 | Fault current limiting resistor and fault current detection device |
| CN111521930B (en) * | 2020-05-13 | 2021-05-11 | 山东省产品质量检验研究院 | Fault current limiting resistor and fault current detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20170929 |