CN102420029A - Heat-resistant F-level enclosed motor lead wire - Google Patents
Heat-resistant F-level enclosed motor lead wire Download PDFInfo
- Publication number
- CN102420029A CN102420029A CN2011104502198A CN201110450219A CN102420029A CN 102420029 A CN102420029 A CN 102420029A CN 2011104502198 A CN2011104502198 A CN 2011104502198A CN 201110450219 A CN201110450219 A CN 201110450219A CN 102420029 A CN102420029 A CN 102420029A
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- lapping layer
- layer
- lead wire
- braided
- braid
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Abstract
The invention relates to a heat-resistant F-level enclosed motor lead wire, which consists of a metal conductor, an inner braided layer, an outer braided layer, an inner lapping layer and an outer lapping layer, wherein the inner braided layer, the inner lapping layer, the outer lapping layer and the outer braided layer are coated outside the metal conductor from inner side to outer side; the inner and outer braided layers are braided by fibers made of polyethylene glycol terephthalate (PET); the inner lapping layer is wound by the inner braided layer through a thin-film strip made of polytetrafluoroethylene; and the outer lapping layer is wound by the inner lapping layer through a thin-film strip made of polyimide. The polytetrafluoroethylene and polyimide serve as materials of the inner and outer lapping layers respectively, have high chemical stability, and high temperature resistance higher than that of the PET, and are completely suitable for occasions of high-temperature high-pressure refrigerants and lubricating oil of an enclosed motor.
Description
Technical field
The present invention relates to field of cables, especially a kind of heat-resisting F level enclosed motor lead wire.
Background technology
The insulating barrier of present enclosed motor lead wire adopts the inside and outside layer of polyster fibre braiding, and the structure of the middle wrapped polyester film of inside and outside layer.The material of polyster fibre and polyester film is PET (PET) (or PETG), and the temperature resistant grade of this kind material is up to 125 ℃, can not be used for the enclosed motor lead wire of higher temperature grade.
When polyester raw material is used to freeze the insulation of impervious machine, need oligomer content very low, otherwise easily oligomer is extracted by the infiltration of lubricating oil and refrigerant, thus the electrical fault of causing.The fusing point of PET is lower, and hot property is relatively poor, in 180 ℃ of dry airs, places after 10 hours; It is very crisp that PET under equal conditions will become, and oligomer content is than higher, and PET is to organic solution and chemicals poor stability in addition; Under actual serviceability temperature; It is more to separate out oligomer, and resistance to water is also relatively poor, does not meet the requirement of the external integument of high-temperature grade refrigeration impervious machine enclosed motor lead wire.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, the heat-resisting F level enclosed motor lead wire that a kind of thermal endurance is strong, compatibility is good is provided.
The present invention solves its technical problem and realizes through following technical scheme:
A kind of heat-resisting F level enclosed motor lead wire; Form by metallic conductor, interior braid, outer braid and interior lapping layer, outer lapping layer; Braid, interior lapping layer, outer lapping layer, outer braid in wrap up from the inside to the outside successively the metallic conductor outside; Said inside and outside braid is to be formed by the fibrage that PETG is processed; Interior lapping layer is that braid forms in being twined by the film band that polytetrafluoroethylene is processed, and outer lapping layer is that lapping layer forms in being twined by the film band that polyimides is processed.
Advantage of the present invention and beneficial effect are:
1, the present invention adopts the interior lapping layer of polytetrafluoroethylene conduct; Adopt the material of polyimides as outer lapping layer; Polytetrafluoroethylene and polyimides all have good chemical stability; Resistance to elevated temperatures is better than PET, because the principal element of temperature resistant grade of decision lead wire is the temperature resistant grade of lapping layer, so lead wire of the present invention is adapted at using under the occasion of cold-producing medium and lubricating oil of high temperature, high pressure of enclosed motor fully.
2, to adopt polytetrafluoroethylene be strong polar material in the present invention, and intermolecular adhesion is bigger; The molecular weight of polyimides is relatively large, and under actual serviceability temperature, the tendency of separating out oligomer is little.
3, the polytetrafluoroethylene of the present invention's use is because its mechanical performance is poor slightly; In producing and using, occur easily by mechanical damages such as scratches; And the mechanical performance of polyimides is good, can protect polytetrafluoroethylene injury-free its wrapped outside at polytetrafluoroethylene.
4, the polytetrafluoroethylene and the polyimides of the present invention's use all are the insulating material of excellent insulation performance; Wherein the long-term work temperature of polytetrafluoroethylene reaches 250 ℃ of levels; The long-term work temperature of polyimides reaches 180 ℃ more than the level, and the inside and outside lapping layer that is used for the enclosed motor lead wire can reach the requirement of F level (155 ℃) fully.
5, the polytetrafluoroethylene of the present invention's use and polyimides combined insulation mode are particularly useful for the enclosed motor lead wire of big specification.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Through specific embodiment the present invention is made further detailed description below, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of heat-resisting F level (155 ℃) enclosed motor lead wire; Form by metallic conductor 1, interior braid 2, outer braid 5 and interior lapping layer 3 and outer lapping layer 4; Braid, interior lapping layer, outer lapping layer, outer braid in wrapping up successively extremely outward in the metallic conductor outside has; Said inside and outside braid is to be formed by the fibrage that PET is processed; Interior lapping layer is that braid forms in being twined by the film band that polytetrafluoroethylene forms, and outer lapping layer is that lapping layer forms in being twined by the film band that polyimides forms.
Polytetrafluoroethylene and polyimides that the inside and outside lapping layer of the present invention uses all have good chemical stability, and excellent insulation performance, thermal endurance reach the requirement of F level (155 ℃) dielectric film.Because the principal element of temperature resistant grade of decision lead wire is the temperature resistant grade of lapping layer, so lead wire of the present invention is adapted at using under the occasion of cold-producing medium and lubricating oil of high temperature, high pressure of enclosed motor fully.The present invention is particularly useful for the enclosed motor lead wire of big specification.
Claims (1)
1. heat-resisting F level enclosed motor lead wire; It is characterized in that: form by metallic conductor, interior braid, outer braid and interior lapping layer, outer lapping layer; Braid, interior lapping layer, outer lapping layer, outer braid in wrap up from the inside to the outside successively the metallic conductor outside; Said inside and outside braid is to be formed by the fibrage that PETG is processed; Interior lapping layer is that braid forms in being twined by the film band that polytetrafluoroethylene is processed, and outer lapping layer is that lapping layer forms in being twined by the film band that polyimides is processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104502198A CN102420029A (en) | 2011-12-29 | 2011-12-29 | Heat-resistant F-level enclosed motor lead wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104502198A CN102420029A (en) | 2011-12-29 | 2011-12-29 | Heat-resistant F-level enclosed motor lead wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102420029A true CN102420029A (en) | 2012-04-18 |
Family
ID=45944391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104502198A Pending CN102420029A (en) | 2011-12-29 | 2011-12-29 | Heat-resistant F-level enclosed motor lead wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102420029A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106971A (en) * | 2012-12-10 | 2013-05-15 | 金捷 | Ultrathin insulation closed motor lead wire |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2697791Y (en) * | 2004-04-29 | 2005-05-04 | 天津六○九电缆有限公司 | High-temp. resisting composite insulation light shielding soft wire |
| CN2845110Y (en) * | 2005-03-28 | 2006-12-06 | 湘潭市特种线缆厂 | Radiation-resistant film winded insulating installation wire |
| CN201549251U (en) * | 2009-09-27 | 2010-08-11 | 天津安讯达科技有限公司 | Heat-resistant, wear-resistant, compound, insulated, and light-duty flexible wire used for space flight and aviation |
| CN102074293A (en) * | 2010-12-15 | 2011-05-25 | 天津市华之阳特种线缆有限公司 | Heat-resistant 155-DEG C enclosed motor lead wire |
| CN202473360U (en) * | 2011-12-29 | 2012-10-03 | 天津市华之阳特种线缆有限公司 | Heat-resistant F-level enclosed motor lead wire |
-
2011
- 2011-12-29 CN CN2011104502198A patent/CN102420029A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2697791Y (en) * | 2004-04-29 | 2005-05-04 | 天津六○九电缆有限公司 | High-temp. resisting composite insulation light shielding soft wire |
| CN2845110Y (en) * | 2005-03-28 | 2006-12-06 | 湘潭市特种线缆厂 | Radiation-resistant film winded insulating installation wire |
| CN201549251U (en) * | 2009-09-27 | 2010-08-11 | 天津安讯达科技有限公司 | Heat-resistant, wear-resistant, compound, insulated, and light-duty flexible wire used for space flight and aviation |
| CN102074293A (en) * | 2010-12-15 | 2011-05-25 | 天津市华之阳特种线缆有限公司 | Heat-resistant 155-DEG C enclosed motor lead wire |
| CN202473360U (en) * | 2011-12-29 | 2012-10-03 | 天津市华之阳特种线缆有限公司 | Heat-resistant F-level enclosed motor lead wire |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106971A (en) * | 2012-12-10 | 2013-05-15 | 金捷 | Ultrathin insulation closed motor lead wire |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120418 |