CN102446585B - H-level enclosed-type motor lead wire - Google Patents
H-level enclosed-type motor lead wire Download PDFInfo
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- CN102446585B CN102446585B CN201110452291.4A CN201110452291A CN102446585B CN 102446585 B CN102446585 B CN 102446585B CN 201110452291 A CN201110452291 A CN 201110452291A CN 102446585 B CN102446585 B CN 102446585B
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- braiding layer
- lead wire
- braid
- type motor
- lapping layer
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Abstract
The invention relates to an H-level enclosed-type motor lead wire, wherein an inner braiding layer, an inner taped covering, an outer taped covering and an outer braiding layer are sequentially wrapped on the outer side of a metal conductor, wherein the inner braiding layer and the outer braiding layer are formed by the braiding of polyphenylene terephthalamide (aramid fiber) fibers; the inner taped covering is formed by twining the inner braiding layer by thin film strips which are prepared from polyfluortetraethylene; and the outer taped covering is formed by twining the inner taped covering by thin film strips which are prepared from polyimide. According to the invention, polyfluortetraethylene and polyimide are adopted to act as materials of the taped coverings, because polyfluortetraethylene and polyimide have favorable chemical stability, and the high-temperature-resistant properties are better than those of PET (polyethylene terephthalate), and the material of the inner braiding layer and the outer braiding layer, namely the polyphenylene terephthalamide (aramid fiber) fiber not only has favorable chemical stability and high-temperature-resistant property, but also has favorable mechanical property, the H-level enclosed-type motor lead wire is completely suitable for being applied to the occasions of high-temperature high-pressure refrigerants and lubrication oil of enclosed-type motors.
Description
Technical field
The present invention relates to field of cables, especially a kind of H-level enclosed-type motor lead wire.
Background technology
The structure of current enclosed-type motor lead wire and material are: insulating barrier is that polyster fibre weaves inside and outside layer, the middle wrapped laminated polyester film again 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 content very low, otherwise 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 H-level 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 H-level enclosed-type motor lead wire, in middle by metallic conductor, interior braid, outer braid and inside and outside braid, lapping layer, outer lapping layer form, braid, interior lapping layer, outer lapping layer, outer braid in wrapping up successively outside metallic conductor, described inside and outside braid is formed by PPTA (aramid fiber) fibrage, interior lapping layer is that in the film band formed by polytetrafluoroethylene is wound around, braid forms, and outer 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 polytetrafluoroethylene and polyimides as the material of lapping layer, because polytetrafluoroethylene and polyimides have good chemical stability, resistance to elevated temperatures is better than PET, and the material PPTA (aramid fiber) of inside and outside braid not only has good chemical stability, resistance to elevated temperatures, also there is good mechanical performance complete, thus, product 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 adopt polytetrafluoroethylene and PPTA be strong polar material, 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 the PPTA of the present invention's use, the lead wire be woven into aramid fiber skin 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 polytetrafluoroethylene and polyimides as the material of lapping layer, as the main insulating layer of lead wire, the application of bi-material 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.
5, the present invention uses polytetrafluoroethylene, polyimides and PPTA are all the insulating material of excellent insulation performance, wherein the Long-term service temperature of polytetrafluoroethylene 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.
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 H-level 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, interior lapping layer is that in the film band formed by polytetrafluoroethylene is wound around, braid forms, and outer lapping layer is that in the film band formed by polyimides is wound around, lapping layer forms.
The polytetrafluoroethylene that the present invention uses, PPTA and polyimides all have good chemical stability, excellent insulation performance, and thermal endurance reaches the requirement of H (180 DEG C) class F insulation; Aramid fiber has good chemical stability, resistance to elevated temperatures, also has good mechanical performance.
Claims (1)
1. a H-level enclosed-type motor lead wire, in middle by metallic conductor, interior braid, outer braid and inside and outside braid, lapping layer, outer lapping layer form, 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, interior lapping layer is that in the film band formed by polytetrafluoroethylene is wound around, braid forms, and outer 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 |
|---|---|---|---|
| CN201110452291.4A CN102446585B (en) | 2011-12-29 | 2011-12-29 | H-level enclosed-type motor lead wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110452291.4A CN102446585B (en) | 2011-12-29 | 2011-12-29 | H-level enclosed-type motor lead wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102446585A CN102446585A (en) | 2012-05-09 |
| CN102446585B true CN102446585B (en) | 2015-05-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110452291.4A Active CN102446585B (en) | 2011-12-29 | 2011-12-29 | H-level enclosed-type motor lead wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN102446585B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2697792Y (en) * | 2004-04-29 | 2005-05-04 | 天津六○九电缆有限公司 | High-temp. resisting composite insulation light soft wire |
| CN201345234Y (en) * | 2009-01-14 | 2009-11-11 | 安徽龙庵电缆集团有限公司 | Flexible and movable cable |
| 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 |
| CN202473357U (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 |
Family Cites Families (6)
| 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 |
| 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 CN201110452291.4A patent/CN102446585B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2697792Y (en) * | 2004-04-29 | 2005-05-04 | 天津六○九电缆有限公司 | High-temp. resisting composite insulation light soft wire |
| CN201345234Y (en) * | 2009-01-14 | 2009-11-11 | 安徽龙庵电缆集团有限公司 | Flexible and movable cable |
| 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 |
| CN202473357U (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102446585A (en) | 2012-05-09 |
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