CN201414229Y - Heating cable - Google Patents
Heating cable Download PDFInfo
- Publication number
- CN201414229Y CN201414229Y CN2009201375517U CN200920137551U CN201414229Y CN 201414229 Y CN201414229 Y CN 201414229Y CN 2009201375517 U CN2009201375517 U CN 2009201375517U CN 200920137551 U CN200920137551 U CN 200920137551U CN 201414229 Y CN201414229 Y CN 201414229Y
- Authority
- CN
- China
- Prior art keywords
- heating cable
- cable
- insulating layer
- layer
- inner cushion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Resistance Heating (AREA)
Abstract
The utility model relates to a heating cable, which comprises a wire core, an insulating layer and an outer sheath, and is characterized in that a PTC alloy heating body used as a wire core 1 is located on the circle center of the cable cross section, and the cross-section concentric circle is orderly provided with an insulating layer 2, an inner cushion layer 3, a shielding layer 4 and an outer shield 5. A polytetrafluoroethylene plastic tape packs around the surface of alloy and forms an excellent electric insulating layer resisting high temperature of 250 DEG C. The inner cushion layer plays the function of increasing the insulation, the shielding layer is a net formed through weaving tin plated copper wire, and increases the integral strength, enlarges the heat radiation area and the earthing protection, and the outer shield is used for resisting damp and corrosion. The heating cable has a certain power adjusting ability, plays the function of self protection, is safer and more reliable in use, and is an ideal PTC alloy heating cable.
Description
Technical field
The utility model relates to electric heating equipment field, relates in particular to a kind of heating cable.
Background technology
Traditional metal electric heating material, temperature coefficient of resistance is very little.When the thermo electric material temperature raise, heating power did not have obvious change, so the electric heating made of traditional electrical hot material must have extremely reliably that temperature control system guarantees its normal use, otherwise can produce excess temperature and damage.Novel PTC alloy material has great temperature coefficient of resistance.Along with heating temp raises, resistance also can increase severely greatly by the utmost point, and heating power has obviously and reduces, even reduces to 20%.Therefore do the heating cable that the heating core is made with the PTC alloy, have the certain power adjustment capability, play the self-protection effect,, use safer reliable as the electric heating element that needs A.T.C.
The utility model content
The purpose of this utility model is to overcome above-mentioned weak point of the prior art and a kind of heating cable that can A.T.C of providing.The utility model utilizes the positive temperature characterisitic of PTC alloy, does the heating cable that the electric heating core is made needs A.T.C, and core 1 is the PTC alloy, and section concentric circles from inside to outside is insulating barrier 2, inner cushion layer 3, screen 4 and oversheath 5 successively.Described insulating barrier constitutes, high temperature resistantly reaches 250 ℃ and have fabulous electrical insulating property in alloy surface by the poly fourfluoroplastics band is wrapped; Inner cushion layer is extruded by poly fourfluoroplastics, plays the reinforced insulation effect; Screen is woven into net with tinned copper wire, and its effect is to increase bulk strength, increasing thermal radiation area and ground protection; Oversheath also is to extrude with poly fourfluoroplastics, is used for moisture-proof anticorrosive.The utility model is done the heating cable that the heating core is made with the PTC alloy, has the certain power adjustment capability, plays the self-protection effect, as the electric heating element that needs A.T.C, uses safer reliable.
Description of drawings
Fig. 1 the utility model structural representation;
Embodiment
The utility model embodiment now is described in detail in detail in conjunction with the accompanying drawings, the utility model includes core, insulating barrier and oversheath, it is characterized in that: PTC alloy heat generating body is positioned at the center of circle of the cross-section of cable as core (1), and section concentric circles from inside to outside is insulating barrier (2), inner cushion layer (3), screen (4) and oversheath (5) successively.Described insulating barrier constitutes, high temperature resistantly reaches 250 ℃ and have fabulous electrical insulating property in alloy surface by the poly fourfluoroplastics band is wrapped; Inner cushion layer is extruded by poly fourfluoroplastics, plays the reinforced insulation effect; Screen is woven into net with tinned copper wire, and its effect is to increase bulk strength, increasing thermal radiation area and ground protection; Oversheath also is to extrude with poly fourfluoroplastics, is used for moisture-proof anticorrosive.
Claims (1)
1, a kind of heating cable, comprise core, insulating barrier and oversheath, it is characterized in that: PTC alloy heat generating body is positioned at the center of circle of the cross-section of cable as core (1), and section concentric circles from inside to outside is insulating barrier (2), inner cushion layer (3), screen (4) and oversheath (5) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201375517U CN201414229Y (en) | 2009-04-10 | 2009-04-10 | Heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201375517U CN201414229Y (en) | 2009-04-10 | 2009-04-10 | Heating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201414229Y true CN201414229Y (en) | 2010-02-24 |
Family
ID=41716107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201375517U Expired - Fee Related CN201414229Y (en) | 2009-04-10 | 2009-04-10 | Heating cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201414229Y (en) |
-
2009
- 2009-04-10 CN CN2009201375517U patent/CN201414229Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20120410 |