CN102420028A - Polyimide and aramid fiber insulation H-stage enclosed electric machine lead wire - Google Patents
Polyimide and aramid fiber insulation H-stage enclosed electric machine lead wire Download PDFInfo
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- CN102420028A CN102420028A CN2011104509731A CN201110450973A CN102420028A CN 102420028 A CN102420028 A CN 102420028A CN 2011104509731 A CN2011104509731 A CN 2011104509731A CN 201110450973 A CN201110450973 A CN 201110450973A CN 102420028 A CN102420028 A CN 102420028A
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- aramid fiber
- polyimide
- lead wire
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- woven layer
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Abstract
The invention relates to a polyimide and aramid fiber insulation H-stage enclosed electric machine lead wire. The lead wire consists of a metal conductor, an inner woven layer, an outer woven layer and a lapping layer; the inner woven layer, the lapping layer and the outer woven layer are wrapped outside the metal conductor from inside to outside sequentially; the inner woven layer and the outer woven layer are both formed by weaving fibers made of poly (para-phenylene terephthanlamide) (aramid fiber); and the lapping layer is formed by winding film strips made of polyimide on the inner woven layer. The polyimide is used as the material of the lapping layer, and is high in chemical stability, and high-temperature-resistant performance of the polyimide is better than that of poly(ethylene terephthalate) (PET); and the poly (para-phenylene terephthanlamide) (aramid fiber) is high in high chemical stability and good in high-temperature-resistant performance and mechanical property. The woven cable product can be completely applied to high-temperature and high-pressure occasions of refrigerants and lubricating oil of an enclosed electric machine.
Description
Technical field
The present invention relates to field of cables, especially a kind of polyimides and aramid fiber insulation H 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 H level enclosed motor that a kind of thermal endurance is strong, compatibility is good lead wire is provided.
The present invention solves its technical problem and realizes through following technical scheme:
A kind of polyimides and aramid fiber insulation H level enclosed motor lead wire; It is characterized in that: form by metallic conductor, interior braid, outer braid and lapping layer; Braid, lapping layer, outer braid in wrap up from the inside to the outside successively the metallic conductor outside; The fibrage that braid, outer braid are processed by PPTA (aramid fiber) in said forms, and lapping layer is that braid 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 material of polyimides as lapping layer; Because polyimides has good chemical stability; Resistance to elevated temperatures is better than PET; Adopt PPTA (aramid fiber) as interior braid, outer braid material, PPTA (aramid fiber) not only has good chemical stability, resistance to elevated temperatures, also has the favorable mechanical performance; Thereby the cable product after the braiding is adapted at using under the occasion of cold-producing medium and lubricating oil of high temperature, high pressure of enclosed motor fully.
2, the present invention is strong polar material as PPTA (aramid fiber) material of inside and outside braid, and intermolecular adhesion is bigger; Molecular weight as the polyimide material of lapping layer is relatively large, and under actual serviceability temperature, the tendency of separating out oligomer is little.
3, the present invention is because the mechanical performance of PPTA (aramid fiber) is good, and the lead wire skin that is woven into PPTA (aramid fiber) has good abrasion resistance, helps narrow and small and the occasion use of wear-resisting requirement arranged in the space.
4, the polyimides and the PPTA (aramid fiber) of the present invention's use all are the insulating material of excellent insulation performance; Wherein the long-term work temperature of aramid fiber reaches 220 ℃ of levels; The long-term work temperature of polyimides reaches 180 ℃ more than the level; Therefore, the cable of its combination being processed is used for the requirement that the enclosed motor lead wire can reach 180 ℃ of levels fully.
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 polyimides and aramid fiber insulation H level enclosed motor lead wire; Form by metallic conductor 1, interior braid 2, outer braid 4 and lapping layer 3; Braid, lapping layer, outer braid in wrap up from the inside to the outside successively the metallic conductor outside; Said inside and outside braid all is to be formed by the fibrage that PPTA (aramid fiber) is processed, and lapping layer is that braid forms in being twined by the film band that polyimides forms.
Aramid fiber and polyimides that the present invention uses all have good chemical stability, and excellent insulation performance, thermal endurance reach the requirement of H (180 ℃) class F insulation; PPTA (aramid fiber) has good chemical stability, resistance to elevated temperatures, also has the favorable mechanical performance.
Claims (1)
1. polyimides and aramid fiber insulation H level enclosed motor lead wire; It is characterized in that: form by metallic conductor, interior braid, outer braid and lapping layer; Braid, lapping layer, outer braid in wrap up from the inside to the outside successively the metallic conductor outside; The fibrage that braid, outer braid are processed by PPTA (aramid fiber) in said forms, and lapping layer is that braid forms in being twined by the film band that polyimides is processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104509731A CN102420028A (en) | 2011-12-29 | 2011-12-29 | Polyimide and aramid fiber insulation H-stage enclosed electric machine lead wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104509731A CN102420028A (en) | 2011-12-29 | 2011-12-29 | Polyimide and aramid fiber insulation H-stage enclosed electric machine lead wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102420028A true CN102420028A (en) | 2012-04-18 |
Family
ID=45944390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104509731A Pending CN102420028A (en) | 2011-12-29 | 2011-12-29 | Polyimide and aramid fiber insulation H-stage enclosed electric machine lead wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102420028A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682895A (en) * | 2012-05-08 | 2012-09-19 | 江苏珠影特种电缆有限公司 | Waterproof environment-friendly torsion-resistant anti-breakage control cable |
| CN103106971A (en) * | 2012-12-10 | 2013-05-15 | 金捷 | Ultrathin insulation closed motor lead wire |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071657A (en) * | 2007-05-28 | 2007-11-14 | 江苏上上电缆集团有限公司 | Anti-torsional cable protective layer |
| CN201327727Y (en) * | 2008-12-10 | 2009-10-14 | 天津市华之阳特种线缆有限公司 | Lead wire for H-grade fluoride-resistant motor |
| CN201820469U (en) * | 2009-10-23 | 2011-05-04 | 芜湖航天特种电缆厂 | Polyimide composite membrane wrapped high and low temperature-resistant wire cable for aviation and aerospace |
| 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 |
| CN201910268U (en) * | 2010-12-29 | 2011-07-27 | 江苏远洋东泽电缆股份有限公司 | Rubber sheathed flexible cable of reel for harbor machinery |
| CN202473356U (en) * | 2011-12-29 | 2012-10-03 | 天津市华之阳特种线缆有限公司 | H-level enclosed motor lead wire with polyimide and aramid fiber insulation |
-
2011
- 2011-12-29 CN CN2011104509731A patent/CN102420028A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071657A (en) * | 2007-05-28 | 2007-11-14 | 江苏上上电缆集团有限公司 | Anti-torsional cable protective layer |
| CN201327727Y (en) * | 2008-12-10 | 2009-10-14 | 天津市华之阳特种线缆有限公司 | Lead wire for H-grade fluoride-resistant motor |
| CN201820469U (en) * | 2009-10-23 | 2011-05-04 | 芜湖航天特种电缆厂 | Polyimide composite membrane wrapped high and low temperature-resistant wire cable for aviation and aerospace |
| 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 |
| CN201910268U (en) * | 2010-12-29 | 2011-07-27 | 江苏远洋东泽电缆股份有限公司 | Rubber sheathed flexible cable of reel for harbor machinery |
| CN202473356U (en) * | 2011-12-29 | 2012-10-03 | 天津市华之阳特种线缆有限公司 | H-level enclosed motor lead wire with polyimide and aramid fiber insulation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682895A (en) * | 2012-05-08 | 2012-09-19 | 江苏珠影特种电缆有限公司 | Waterproof environment-friendly torsion-resistant anti-breakage control cable |
| CN103106971A (en) * | 2012-12-10 | 2013-05-15 | 金捷 | Ultrathin insulation closed motor lead wire |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120418 |