CN102522147B - Double-layer polyimide insulating leading and connecting wire of enclosed electric machine - Google Patents
Double-layer polyimide insulating leading and connecting wire of enclosed electric machine Download PDFInfo
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- CN102522147B CN102522147B CN201110450930.3A CN201110450930A CN102522147B CN 102522147 B CN102522147 B CN 102522147B CN 201110450930 A CN201110450930 A CN 201110450930A CN 102522147 B CN102522147 B CN 102522147B
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Abstract
The invention relates to a double-layer polyimide insulating leading and connecting wire of an enclosed electric machine, and the double-layer polyimide insulating leading and connecting wire consists of a metal conductor, an inner braided layer, an outer braided layer, an inner wrapping layer and an outer wrapping layer. The inner braided layer, the inner wrapping layer, the outer wrapping layer and the outer braided layer package the outer side of the metal conductor in sequence; the inner braided layer and the outer braided layer are formed by braiding poly(p-phenylene terephthalamide) (aramid) fibers; and the inner wrapping layer and the outer wrapping layer are formed by winding the inner wrapping layer by a thin film strip made of polyimide. According to the double-layer polyimide insulating leading and connecting wire, the polyimide is adopted as the materials of the wrapping layers, and as the polyimide has favorable chemical stability, the high-temperature resistance performance is better than that of PET (polyethylene terephthalate), and the poly(p-phenylene terephthalamide) (aramid) used by the braided layers not only has favorable chemical stability and high-temperature resistance performance, but also has favorable mechanical performance, the leading and connecting wire of the electric machine is completely suitable to be applied on the occasions of a high-temperature and high-pressure refrigerating fluid and lubricating oil of the enclosed electric machine.
Description
Technical field
The present invention relates to field of cables, especially a kind of double-deck polyimide insulative enclosed-type motor lead wire.
Background technology
The insulating barrier of current enclosed-type motor lead wire adopts polyster fibre to weave inside and outside layer, and the structure of the middle wrapped polyester film of inside and outside layer.The material of polyster fibre and polyester film is polyethylene terephthalate (PET) (or PETG), the temperature resistant grade of this kind of material is up to 125 DEG C, can not be used for the enclosed-type motor lead wire of higher temperature grade.
When polyester raw material is used for the insulation of cryogen containment type motor, need oligomer very low, because be subject to the infiltration of lubricating oil and refrigerant, oligomer is easy to be extracted, and causes electrical fault.The fusing point of PET is lower, hot property is poor, place in 180 DEG C of dry airs after 10 hours, PET under equal conditions will become very crisp, and oligomer is higher, and PET is to organic solution and chemicals poor stability in addition, under actual serviceability temperature, precipitation oligomer is more, and resistance to water is also poor, does not meet high-temperature grade refrigeration impervious machine enclosed-type motor lead wire to the requirement of outer casing.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the double-deck polyimide insulative enclosed-type motor lead wire that a kind of thermal endurance is strong, compatibility is good is provided.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of double-deck polyimide insulative enclosed-type motor lead wire, be made up of metallic conductor, interior braid, outer braid, interior lapping layer and outer lapping layer, braid, interior lapping layer, outer lapping layer, outer braid in wrapping up successively outside metallic conductor, described inside and outside braid is woven by Fanglun 1414 to form, and inside and outside lapping layer is that in the film band formed by polyimides is wound around, lapping layer forms.
Advantage of the present invention and beneficial effect are:
1, the present invention adopts polyimides as the material of lapping layer, because polyimides has good chemical stability, resistance to elevated temperatures is better than PET, the PPTA (aramid fiber) that braid uses not only has good chemical stability, resistance to elevated temperatures, also there is good mechanical performance complete, thus, this motor lead is applied under being adapted at the occasion of the high temperature of enclosed motor, the cold-producing medium of high pressure and lubricating oil completely.
2, the present invention adopts polyimides, PPTA are strong polar material, and inter-molecular binding force is larger; The molecular weight of polyimides is relatively large, and under actual serviceability temperature, the tendency separating out oligomer is little.
3, the good mechanical performance of braid PPTA of the present invention, has good anti-wear performance, is conducive at narrow space and has the occasion of wear-resisting requirement to use.
4, the present invention adopts polyimides as the material of lapping layer, as the main insulating layer of lead wire, double-deck polyimides lapped insulation application makes insulation property and withstand voltage properties all improve than single layer dielectrics, compared with individual layer lapped insulation, the present invention is particularly useful for the larger lead wire of sectional area ratio, simultaneously the present invention can bear the voltage up to 1000V, the infringement to lead wire insulation when effectively reducing electric motor starting.
5, the polyimides that uses of the present invention and PPTA are all the insulating material of excellent insulation performance, wherein the Long-term service temperature of polyimides reaches 250 DEG C of levels, the Long-term service temperature of PPTA reaches 220 DEG C of levels, the Long-term service temperature of polyimides reaches more than 180 DEG C of levels, can reach the requirement of 180 DEG C of levels for enclosed-type motor lead wire completely.
6, the present invention uses double-deck polyimides lapped insulation, can under the prerequisite substantially not reducing lead-in wire flexibility, insulating barrier be thickeied, improve the insulation property of lead-in wire.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of double-deck polyimide insulative enclosed-type motor lead wire, in middle by metallic conductor 1, interior braid 2, outer braid 5 and inside and outside braid, lapping layer 3, outer lapping layer 4 form, braid, interior lapping layer, outer lapping layer, outer braid in wrapping up successively outside metallic conductor, described inside and outside braid is that the fibrage of being made up of PPTA (aramid fiber) forms, and inside and outside lapping layer is that in the film band formed by polyimides is wound around, lapping layer forms.
The present invention adopts polyimides as the material of lapping layer, as the main insulating layer of lead wire, double-deck polyimides lapped insulation application makes insulation property and withstand voltage properties all improve than single layer dielectrics, compared with individual layer lapped insulation, the present invention is particularly useful for the larger lead wire of sectional area ratio, simultaneously the present invention can bear the voltage up to 1000V, the infringement to lead wire insulation when effectively reducing electric motor starting.
The PPTA that the present invention uses and polyimides all have good chemical stability, excellent insulation performance, and thermal endurance reaches the requirement of H (180 DEG C) class F insulation; In addition, PPTA also has good resistance to elevated temperatures, also has good mechanical performance.
Claims (1)
1. a double-deck polyimide insulative enclosed-type motor lead wire, be made up of metallic conductor, interior braid, outer braid, interior lapping layer and outer lapping layer, braid, interior lapping layer, outer lapping layer, outer braid in wrapping up successively outside metallic conductor, it is characterized in that: described inside and outside braid is woven by Fanglun 1414 to form, inside and outside lapping layer is that in the film band formed by polyimides is wound around, lapping layer forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110450930.3A CN102522147B (en) | 2011-12-29 | 2011-12-29 | Double-layer polyimide insulating leading and connecting wire of enclosed electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110450930.3A CN102522147B (en) | 2011-12-29 | 2011-12-29 | Double-layer polyimide insulating leading and connecting wire of enclosed electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102522147A CN102522147A (en) | 2012-06-27 |
| CN102522147B true CN102522147B (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110450930.3A Active CN102522147B (en) | 2011-12-29 | 2011-12-29 | Double-layer polyimide insulating leading and connecting wire of enclosed electric machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102522147B (en) |
Families Citing this family (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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201489874U (en) * | 2009-07-30 | 2010-05-26 | 安徽明星电缆有限公司 | High-strength, high temperature resistant and corrosion resistant silicone rubber movable flexible cable |
| CN101719396A (en) * | 2009-12-29 | 2010-06-02 | 上海电缆研究所 | Radiation-resistant polyimide film insulating cable with high bonding strength and method for producing same |
| CN201570298U (en) * | 2009-11-25 | 2010-09-01 | 致恒(天津)实业有限公司 | Ultra-soft helical cable |
| CN202473293U (en) * | 2011-12-29 | 2012-10-03 | 天津市华之阳特种线缆有限公司 | Enclosed motor lead wire with double-layer polyimide insulation |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5262592A (en) * | 1991-02-19 | 1993-11-16 | Champlain Cable Corporation | Filter line cable featuring conductive fiber shielding |
| JPH09270207A (en) * | 1996-04-01 | 1997-10-14 | Hitachi Cable Ltd | Elastic cable excellent in terminal workability |
| DE10057657A1 (en) * | 2000-11-21 | 2002-05-29 | Eilentropp Kg | Electric cable comprises one or more layers of a wound polyimide strip which is located between the conductor and the insulating layer, with its top and bottom layers bonded to one another |
| CN2932809Y (en) * | 2006-06-29 | 2007-08-08 | 天津市华之阳特种线缆有限公司 | Double-insulation double-braided motor winding lead wire |
| WO2009109216A1 (en) * | 2008-03-03 | 2009-09-11 | Abb Research Ltd | Electrical hollow core insulator |
| CN201237930Y (en) * | 2008-07-29 | 2009-05-13 | 安徽华能电缆集团有限公司 | Special cable for wind power generation |
| 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 |
| CN201698801U (en) * | 2010-06-23 | 2011-01-05 | 江阴福特电缆有限公司 | Silicon rubber insulation flexible cable for wind turbine connection |
-
2011
- 2011-12-29 CN CN201110450930.3A patent/CN102522147B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201489874U (en) * | 2009-07-30 | 2010-05-26 | 安徽明星电缆有限公司 | High-strength, high temperature resistant and corrosion resistant silicone rubber movable flexible cable |
| CN201570298U (en) * | 2009-11-25 | 2010-09-01 | 致恒(天津)实业有限公司 | Ultra-soft helical cable |
| CN101719396A (en) * | 2009-12-29 | 2010-06-02 | 上海电缆研究所 | Radiation-resistant polyimide film insulating cable with high bonding strength and method for producing same |
| CN202473293U (en) * | 2011-12-29 | 2012-10-03 | 天津市华之阳特种线缆有限公司 | Enclosed motor lead wire with double-layer polyimide insulation |
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| CN102522147A (en) | 2012-06-27 |
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Effective date of registration: 20160725 Address after: 300385 Tianjin City Economic Development Zone Xiqing three Saida Avenue No. 8 Patentee after: Tianjin Lifu Optical Cable Development Co., Ltd. Patentee after: Tianjin Huazhiyang Specal Cable Co., Ltd. Address before: 300402 Beichen District, Wen Jiabao Village East Industrial Park, East temperature, No. three branch road, No., No. 7 Patentee before: Tianjin Huazhiyang Specal Cable Co., Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160823 Address after: 300402 Beichen District, Wen Jiabao Village East Industrial Park, East temperature, No. three branch road, No., No. 7 Patentee after: Tianjin Huazhiyang Specal Cable Co., Ltd. Address before: 300385 Tianjin City Economic Development Zone Xiqing three Saida Avenue No. 8 Patentee before: Tianjin Lifu Optical Cable Development Co., Ltd. Patentee before: Tianjin Huazhiyang Specal Cable Co., Ltd. |