CN202473360U - Heat-resistant F-level enclosed motor lead wire - Google Patents
Heat-resistant F-level enclosed motor lead wire Download PDFInfo
- Publication number
- CN202473360U CN202473360U CN2011205657558U CN201120565755U CN202473360U CN 202473360 U CN202473360 U CN 202473360U CN 2011205657558 U CN2011205657558 U CN 2011205657558U CN 201120565755 U CN201120565755 U CN 201120565755U CN 202473360 U CN202473360 U CN 202473360U
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- China
- Prior art keywords
- layer
- lead wire
- enclosed motor
- lapping layer
- wrapping layer
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- 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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Abstract
The utility model relates to a heat-resistant F-level enclosed motor lead wire. The enclosed motor lead wire consists of a metal conductor, an inner woven layer, an outer woven layer, and an inner wrapping layer and an outer wrapping layer, wherein the outside of the metal conductor is wrapped by the inner woven layer, the inner wrapping layer, the outer wrapping layer and the outer woven layer from inside to outside successively; the inner woven layer and the outer woven layer are woven by fibers made of polyethylene glycol terephthalate; the inner wrapping layer is formed by winding a thin-film strip made of polytetrafluoroethylene on the inner woven layer; and the outer wrapping layer is formed by winding a thin-film strip made of polyimide on the inner wrapping layer. Polytetrafluoroethylene and polyimide are adopted to be materials of the inner wrapping layer and the outer wrapping layer respectively, and have high chemical stability and higher high-temperature resistance than that of the PET. The heat-resistant F-level enclosed motor lead wire is completely suitable for and applied to occasions of high-temperature high-pressure refrigerants and lubricating oil of an enclosed motor.
Description
Technical field
The utility model 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 purpose of the utility model is to overcome the deficiency of prior art, and the heat-resisting F level enclosed motor lead wire that a kind of thermal endurance is strong, compatibility is good is provided.
The utility model 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 utility model and beneficial effect are:
1, the utility model 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 the utility model lead wire 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 utility model employing polytetrafluoroethylene is strong polar material, 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 utility model 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 utility model 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 utility model use and polyimides combined insulation mode are particularly useful for the enclosed motor lead wire of big specification.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Through specific embodiment the utility model is done further to detail below, following examples are descriptive, are not determinate, can not limit the protection range of the utility model 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 utility model 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 the utility model lead wire is adapted at using under the occasion of cold-producing medium and lubricating oil of high temperature, high pressure of enclosed motor fully.The utility model 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 |
|---|---|---|---|
| CN2011205657558U CN202473360U (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 |
|---|---|---|---|
| CN2011205657558U CN202473360U (en) | 2011-12-29 | 2011-12-29 | Heat-resistant F-level enclosed motor lead wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473360U true CN202473360U (en) | 2012-10-03 |
Family
ID=46921504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205657558U Expired - Fee Related CN202473360U (en) | 2011-12-29 | 2011-12-29 | Heat-resistant F-level enclosed motor lead wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420029A (en) * | 2011-12-29 | 2012-04-18 | 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 CN2011205657558U patent/CN202473360U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420029A (en) * | 2011-12-29 | 2012-04-18 | 天津市华之阳特种线缆有限公司 | Heat-resistant F-level enclosed motor lead wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20171229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |