CN2393294Y - PTC self-constant-temp. electrothermal wire - Google Patents
PTC self-constant-temp. electrothermal wire Download PDFInfo
- Publication number
- CN2393294Y CN2393294Y CN 99241113 CN99241113U CN2393294Y CN 2393294 Y CN2393294 Y CN 2393294Y CN 99241113 CN99241113 CN 99241113 CN 99241113 U CN99241113 U CN 99241113U CN 2393294 Y CN2393294 Y CN 2393294Y
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- China
- Prior art keywords
- wire
- ptc
- self
- constant temperature
- heating wire
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- Expired - Fee Related
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Abstract
The utility model relates to a PTC self-constant-temperature electrothermal wire, which is composed of a chemical fibre, two or more than two metal wires and PTC material. The metal wires are wound on a core wire with a definite interval in parallel, and form a current loop with the PTC material. The self-constant-temperature electrothermal wire has the advantages of novel structural features, good flexibility and good toughness. A circular cross sectional shape is even suitable for domestic electrothermal blankets.
Description
The utility model relates to a kind of heating wire, particularly makes the self-constant temperature heating wire of heater with the ptc conductive polymer material.
Existing P TC self-constant temperature heating wire is as conductive core line by two parallel side by side metal wires.The PTC ribbon heater of this structure is a bandlet.In some occasion, use flat-shaped ribbon heater defectiveness.Such as being used on the electric blanket, in PTC ribbon heater revolution place, flat-shaped structure makes the electric blanket surface irregularity, and the user overlies and pushes up the sensation of the back of the body.
In view of the deficiency that above-mentioned PTC ribbon heater exists, the purpose of this utility model is to develop a kind of cross sectional shape and be circular PTC self-constant temperature heating wire.
The utility model PTC self-constant temperature hot line has following design feature: it is made of internal core wire, two or two above metal wires and ptc conductive polymer material, metal wire keeps spacing each other, parallel winded is on heart yearn, the ptc conductive polymer material is wrapped on the heart yearn that is wound with metal wire, and metal wire and ptc conductive polymer material form current circuit.After the metal wire energized that is wound on the chemical fibre heart yearn, electric current flows out from a wires, flows to another wires through the ptc conductive polymer material.Electric energy heats up the PTC exothermic material.Along with the rising of temperature, the resistance of ptc material also increases gradually.When temperature rises to certain when a bit, ptc material resistance increases to the blocking-up electric current.Heat up this moment and stop.The heating wire heat conducts heat to the lower heated object of temperature, and to the temperature of heated object during near the heating wire temperature, heat transfer stops, and the power of heating wire levels off to zero, thereby realizes that the limit temperature is conducted heat automatically.
Because the utility model adopts chemical fibre to make heart yearn, make electrode with the metal wire that is wound on the heart yearn, do from the temperature control exothermic material with the ptc conductive polymer material of extrusion molding on heart yearn and metal wire, except that this heating wire with novel structure is had the advantage of self-constant temperature, the flexibility and the toughness that also have advantage, its bending resistance folding endurance and tensile strength all strengthen greatly, are widely used in industry and civilian electric heating field.
Describe the utility model in detail below in conjunction with accompanying drawing.
Fig. 1 heating wire cross-sectional view
Fig. 2 vertical structure schematic diagram
This heating wire is made of chemical fibre 1, metal wire 2 and ptc conductive polymer material 3.In the present embodiment, parallel winded has two wires on heart yearn, and certain spacing is arranged between the metal wire, does not contact mutually.Be wound with extrusion molding ptc conductive polymer material on the heart yearn of metal wire.The metal wire of coiling constitutes current circuit as pair of electrodes with ptc material on the heart yearn.Owing to adopt a heart yearn, make its cross section rounded.This structure makes heating wire have good flexibility and toughness.If behind extrusion molding one layer insulating on this heating wire, then prepared PTC self-constant temperature heating wire will more be applicable to the domestic electric heating blanket.
Claims (4)
1, PTC self-constant temperature heating wire, it is characterized in that by one thoroughly do away with the edge internal core wire, metal wire and ptc conductive polymer material more than two or two constitutes, metal wire keeps spacing each other, parallel winded is on internal core wire, the PTC conduction is to the molecular material extrusion moulding, be wrapped on the internal core wire that is wound with metal wire, metal wire and ptc conductive polymer material form current circuit.
2, PTC self-constant temperature heating wire as claimed in claim 1 is characterized in that the heating wire cross section is for circular.
3, PTC self-constant temperature heating wire as claimed in claim 2 is characterized in that heart yearn adopts polyster fibre or nylon yarn, and metal wire adopts zinc-plated copper free wire or copper wire, or brass wire or stainless steel wire, or molybdenum filament.
4, as claim 2 or 3 described PTC self-constant temperature heating wires, it is characterized in that the heating wire appearance is enclosed with insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241113 CN2393294Y (en) | 1999-09-14 | 1999-09-14 | PTC self-constant-temp. electrothermal wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241113 CN2393294Y (en) | 1999-09-14 | 1999-09-14 | PTC self-constant-temp. electrothermal wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2393294Y true CN2393294Y (en) | 2000-08-23 |
Family
ID=34028030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99241113 Expired - Fee Related CN2393294Y (en) | 1999-09-14 | 1999-09-14 | PTC self-constant-temp. electrothermal wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2393294Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109526080A (en) * | 2018-12-17 | 2019-03-26 | 裕鸽电器(深圳)有限公司 | A kind of PTC line with heating function and the heat generating device with PTC line with heating function |
-
1999
- 1999-09-14 CN CN 99241113 patent/CN2393294Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109526080A (en) * | 2018-12-17 | 2019-03-26 | 裕鸽电器(深圳)有限公司 | A kind of PTC line with heating function and the heat generating device with PTC line with heating function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |