CN203456129U - Copper strap wire for electrical excitation coil - Google Patents
Copper strap wire for electrical excitation coil Download PDFInfo
- Publication number
- CN203456129U CN203456129U CN201320532274.6U CN201320532274U CN203456129U CN 203456129 U CN203456129 U CN 203456129U CN 201320532274 U CN201320532274 U CN 201320532274U CN 203456129 U CN203456129 U CN 203456129U
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- Prior art keywords
- strap wire
- polyester film
- copper
- copper strap
- wire
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- Expired - Fee Related
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Abstract
The utility model discloses a copper strap wire for an electrical excitation coil, and the copper strap wire comprises a copper-strap wire. The exterior of the copper-strap wire is sequentially wrapped by a polyester film and a cable insulation paper. The outer layer of the copper-strap wire employs a dual-insulation layer of polyester film and cable insulation paper. Because the flexibility of the polyester film is good and the capability of water absorption of the polyester film is poor, thereby enabling the copper-strap wire to maintain good performance of insulation and the performances of temperature resistance and pressure resistance when the copper-strap wire is immersed into water.
Description
Technical field
The utility model relates to insulated copper flat wire, is specifically related to a kind of electric magnet exciting coil copper strap wire.
Background technology
Tradition is for the paper bag winding wire of the following oil-filled transformer of 10KV, is that coiling cable paper (telephone paper) is as insulating barrier on copper strap wire bare conductor, and because the moisture absorption of paper is strong, when the little magnet exciting coil of making diameter, external insulation layer easily ftractures; Its insulation average thickness is greater than 0.45mm, and power frequency dielectric strength is not less than 3.6KV, and heatproof is 105 ℃.Traditional copper strap wire has shortcomings: insulating barrier average thickness is large, and the manufactured size of transformer is increased, and has increased cost; The insulating barrier of copper strap wire is only cable paper, and insulation effect is poor, and aging fast after long-term use, damage easy to crack; Due to the characteristic of insulating paper, make its pressure high-temp resistant poor-performing simultaneously.
In order to solve above-mentioned deficiency of the prior art, the utility model proposes a kind of new solution.
Utility model content
The purpose of this utility model is to provide that a kind of pliability is strong, the electric magnet exciting coil copper strap wire of heat resisting and pressure resisting better performances.
For reaching above-mentioned purpose, the technical scheme that the utility model adopts is: a kind of electric magnet exciting coil copper strap wire is provided, comprises copper strap wire, in the outside of copper strap wire, be enclosed with successively polyester film and cable insulating paper.The rate of putting up of polyester film is greater than 40%; The width of putting up of cable insulating paper is greater than 3mm, and pitch is less than 20mm, and the thickness sum of polyester film and cable insulating paper is 0.25mm.
In sum, the utlity model has following advantage:
The double hyer insulation layer that has adopted polyester film and insulating paper, polyester film pliability is good, and water absorption is poor, while making copper strap wire be immersed in oil, not only can keep good insulation property, has also strengthened its heat resisting and pressure resisting performance.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is the schematic diagram that insulating barrier is wound on copper strap wire.
Wherein, 1, copper strap wire; 2, polyester film; 3, cable insulating paper.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
As shown in Figure 1, copper strap wire 1, in manufacturing process, is first wrapped in polyester film 2 on copper strap wire 1 with angle according to a certain direction, then cable insulating paper 3 is wound on to the skin of polyester film 2 with the direction with polyester film 2 coiling opposite directions.As shown in Figure 2, term of the present utility model is carried out to relevant explanation, a in Fig. 2 represents to put up width, and b represents pitch, and c represents the width of polyester film 2, and the rate of putting up is to put up the ratio of width a and polyester film 2 width c.Put up width relevant to angle and density degree that polyester film 2 is wrapped in copper strap wire 1, refer to overlapping part in polyester film 2 winding process.At the width of polyester film 2, fixedly time, put up width larger, the coiling of polyester film 2 is more intensive.If the rate of putting up is too low, due to the heat-shrinkable feature of polyester film 2, finished product, when doing crooked experiment, easily occurs that alice reveals seam phenomenon; In wrapped coil, the insulation property of product will be affected simultaneously.
In order to make product there is good performance, when coiling polyester film 2, make its rate of putting up be greater than 40%, the width of putting up of cable insulating paper 3 is greater than 3mm, and pitch is less than 20mm; In order to control the thickness of insulating barrier, the thickness sum that makes polyester film 2 and cable insulating paper 3 is 0.25mm, not only can keep good insulation property, can will reduce the volume of copper strap wire simultaneously.
Although by reference to the accompanying drawings embodiment of the present utility model is described in detail, should not be construed as the restriction to the protection range of this patent.In the described scope of claims, the various modifications that those skilled in the art can make without creative work and distortion still belong to the protection range of this patent.
Claims (1)
1. an electric magnet exciting coil copper strap wire, it is characterized in that: comprise copper strap wire, the outside of copper strap wire is enclosed with polyester film and cable insulating paper successively, and the thickness sum of polyester film and cable insulating paper is 0.25mm; The rate of putting up of described polyester film is greater than 40%, and the width of putting up of described cable insulating paper is greater than 3mm, and pitch is less than 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532274.6U CN203456129U (en) | 2013-08-29 | 2013-08-29 | Copper strap wire for electrical excitation coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532274.6U CN203456129U (en) | 2013-08-29 | 2013-08-29 | Copper strap wire for electrical excitation coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203456129U true CN203456129U (en) | 2014-02-26 |
Family
ID=50135989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320532274.6U Expired - Fee Related CN203456129U (en) | 2013-08-29 | 2013-08-29 | Copper strap wire for electrical excitation coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203456129U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851485A (en) * | 2015-05-21 | 2015-08-19 | 苏州贯龙电磁线股份有限公司 | Sealed type water-resistant electromagnetic wire |
| CN117816771A (en) * | 2024-03-04 | 2024-04-05 | 四川明珠电工材料有限责任公司 | Online flaw detection device of continuous extrusion machine |
-
2013
- 2013-08-29 CN CN201320532274.6U patent/CN203456129U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851485A (en) * | 2015-05-21 | 2015-08-19 | 苏州贯龙电磁线股份有限公司 | Sealed type water-resistant electromagnetic wire |
| CN117816771A (en) * | 2024-03-04 | 2024-04-05 | 四川明珠电工材料有限责任公司 | Online flaw detection device of continuous extrusion machine |
| CN117816771B (en) * | 2024-03-04 | 2024-05-14 | 四川明珠电工材料有限责任公司 | Online flaw detection device of continuous extrusion machine |
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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: 20140226 Termination date: 20190829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |