CN101951093A - Turn-to-turn insulation structure for rotor pole coil of salient-pole synchronous motor - Google Patents
Turn-to-turn insulation structure for rotor pole coil of salient-pole synchronous motor Download PDFInfo
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- CN101951093A CN101951093A CN 201010510009 CN201010510009A CN101951093A CN 101951093 A CN101951093 A CN 101951093A CN 201010510009 CN201010510009 CN 201010510009 CN 201010510009 A CN201010510009 A CN 201010510009A CN 101951093 A CN101951093 A CN 101951093A
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Abstract
The invention discloses a turn-to-turn insulation structure for a rotor pole coil of a salient-pole synchronous motor. The turn-to-turn insulation structure comprises coil straight line part turn-to-turn insulation and end part insulation, wherein the coil straight line part turn-to-turn insulation and the end part insulation adopt laminated glass fabric swatches; single-face polyimide film temperature-proof low-resin mica tapes are wrapped on the end part insulation every other turn in a semi folding mode, one more layer is additionally wrapped on the head turn and tail turn of a coil; the coils of each turn and laminated glass fabric swatch stepping bars are tightly embedded on the coil straight line part turn-to-turn insulation at intervals, and the stepping bars cover the end part insulation; and the single-face polyimide film temperature-proof low-resin mica tapes at the end part are subjected to vacuum pressure impregnation and then firmly bond with the coil turns together. The invention changes the turn-to-turn insulation structure to compound insulation from single insulation, thereby improving the insulation reliability of the pole coil and ensuring the safe operation of the motor.
Description
Technical field
The present invention relates to a kind of implicit pole synchronous motor, especially relate to the turn-to-turn insulation structure of implicit pole synchronous motor rotor magnetic pole coil.
Background technology
Implicit pole synchronous motor is widely used in rolling mill, air blast, various pump and exchanges the power autonomous or portable power source in unit and factory, mine, boats and ships and rural area.The rotor magnetic pole coil of this type of motor adopts concentric type bare wire edge-wind structure more, compares with salient pole synchronous electric machine rotor magnetic pole coil, and its notable feature is that coil shape and size and turn-to-turn insulation structure are to determine after rule is finished.Similarly non-salient pole field-turn insulation structure adopts single insulating, that is: glass cloth laminated sheet is all adopted in coil straight line portion and end.There is following defective in this kind structure: 1, the overhang insulation density is poor, influences insulation property; 2, when operation overhang insulation displacement even fly and to cause insulation fault.3, the bad adhesion of overhang insulation and wire turn influences the end winding mechanical strength.The existence of these defectives reduces the insulating reliability of pole coil, thereby influences the safe operation of motor.
Summary of the invention
The objective of the invention is to overcome the defective in the said structure, change the turn-to-turn insulation structure into compound inslation by single insulating, thereby improve the insulating reliability of pole coil, guarantee the safe operation of motor.
For achieving the above object, the present invention takes following technical scheme:
Insulation system between implicit pole synchronous motor rotor magnetic pole coil turn comprises coil straight line portion turn-to-turn insulation and overhang insulation, and coil straight line portion turn-to-turn insulation and overhang insulation all adopt glass cloth laminated sheet.Every the circle half-stack package, the stem circle of coil and last portion circle add bag one deck to overhang insulation with the high temperature resistant low resin mica tape of single-sided polyimide film.Coil straight line portion turn-to-turn insulation is to adopt every circle coil and glass cloth laminated sheet filler strip closely to set at interval, and filler strip covers overhang insulation.
According to the further setting to technique scheme, the glue content of the high temperature resistant low resin mica tape of single-sided polyimide film is less than 10%.
The high temperature resistant low resin mica tape of single-sided polyimide film of end bonds together wire turn after by vacuum pressure impregnation securely.
The present invention changes the turn-to-turn insulation structure into compound inslation by single insulating, thereby improves the insulating reliability of pole coil, guarantees the safe operation of motor.Take above insulating process to make pole coil become a closely knit integral body, especially the high temperature resistant low resin mica tape of single-sided polyimide film of end bonds together wire turn after by vacuum pressure impregnation securely, has greatly improved the insulating reliability of pole coil.
Description of drawings
Fig. 1 is an insulation system schematic diagram between implicit pole synchronous motor rotor magnetic pole coil turn.
Fig. 2 is an A-A generalized section among Fig. 1.
Among the figure: 1, the glass cloth laminated sheet filler strip; 2, the high temperature resistant low resin mica tape of single-sided polyimide film; 3, lead; The L loop length; The L1 coil embeds rotor core length; L2, L3, L2 ', L3 ' overhang insulation wrapping length.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
With reference to accompanying drawing 1, Fig. 2, pole coil completes, after the passed examination, with the high temperature resistant low resin mica tape 2(of single-sided polyimide film glue content less than 10%, dielectric strength is greater than 45MV/m) in the end every the circle half-stack package, the first and last circle adds bag one deck, the wrapping length as shown be L2, L3 and L2 ', L3 ', wrapping from a to b and from c to d, insulation wrapping terminal a, b, c, d and core slots length L 1 two ends apart from e (5＜e＜8).Rule, with smooth with the bakelite alignment that re-packs behind lead 3 embedded grooves, the intact circle of every embedding promptly fills up and straightens line part turn-to-turn insulation---glass cloth laminated sheet filler strip 1, and it is consistent that glass cloth laminated sheet filler strip 1 its overall dimension L and coil are grown limit overall dimension.Accomplish fluently slot wedge behind lead 3 whole embedded grooves.The straight line portion turn-to-turn insulation of pole coil end---glass cloth laminated sheet filler strip 1 is stretched out in pruning, line, and end shaping colligation is fixed.
Turn-to-turn insulation structure of the present invention is compared with existing turn-to-turn insulation structure and is had the following advantages:
Pole coil becomes a closely knit integral body after the vacuum pressure impregnation, and especially the end wire turn bonds together securely, and excellent insulation performance has greatly improved the security reliability of motor operation.
Embodiment:
With the TFW7500-4 three-phase synchronous generator is example, every utmost point is made up of 5 pole coils of size, the long 1100mm of iron core, and 5 pole coil length are respectively: 1410mm, 1462mm, 1523mm, 1564mm and 1604mm, 3 wire types are 4.5*15.6 copper strap wire TBR, 20 circles.
Above field-turn insulation adopts composite insulation structure of the present invention, the pole coil end with the high temperature resistant low resin mica tape of 2 S5463-1 0.09*25 single-sided polyimide films every the circle half-stack package once, first and last circle half-stack package twice, 350 1 of straight line portion pad 1 0.3 diphenyl oxide glass cloth plates.
Claims (3)
1. insulation system between implicit pole synchronous motor rotor magnetic pole coil turn, comprise coil straight line portion turn-to-turn insulation and overhang insulation, described coil straight line portion turn-to-turn insulation and overhang insulation all adopt glass cloth laminated sheet, it is characterized in that overhang insulation adopts the high temperature resistant low resin mica tape of single-sided polyimide film every the circle half-stack package, the stem circle of coil and last portion circle add bag one deck; Coil straight line portion turn-to-turn insulation is to adopt every circle coil and glass cloth laminated sheet filler strip closely to set at interval, and filler strip covers overhang insulation.
2. insulation system between implicit pole synchronous motor rotor magnetic pole coil turn according to claim 1, the glue content that it is characterized in that the high temperature resistant low resin mica tape of described single-sided polyimide film is less than 10%.
3. insulation system between implicit pole synchronous motor rotor magnetic pole coil turn according to claim 1 and 2, the high temperature resistant low resin mica tape of single-sided polyimide film that it is characterized in that described end bond together wire turn after by vacuum pressure impregnation securely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010510009A CN101951093B (en) | 2010-10-18 | 2010-10-18 | Turn-to-turn insulation structure for rotor pole coil of salient-pole synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010510009A CN101951093B (en) | 2010-10-18 | 2010-10-18 | Turn-to-turn insulation structure for rotor pole coil of salient-pole synchronous motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101951093A true CN101951093A (en) | 2011-01-19 |
| CN101951093B CN101951093B (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010510009A Active CN101951093B (en) | 2010-10-18 | 2010-10-18 | Turn-to-turn insulation structure for rotor pole coil of salient-pole synchronous motor |
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| CN (1) | CN101951093B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588868A (en) * | 2017-09-11 | 2018-01-16 | 哈尔滨电机厂有限责任公司 | Turn-to-turn pressure detection method during the centripetal pole coil of hydrogenerator is hot-forming |
| CN112510943A (en) * | 2020-11-27 | 2021-03-16 | 上海电气电站设备有限公司 | Rotor turn-to-turn insulation pre-glued filler strip and bonding method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2764038Y (en) * | 2005-01-25 | 2006-03-08 | 锦州韩华电装有限公司 | Armature with insulation fixing ring |
| CN101064455A (en) * | 2006-04-28 | 2007-10-31 | 乐金电子(天津)电器有限公司 | Insulator plate of machine winding coil |
| CN101098094A (en) * | 2007-07-13 | 2008-01-02 | 张嘉宏 | Integrated insulation cushion slot paper |
| CN101789655A (en) * | 2010-03-05 | 2010-07-28 | 大连天元电机股份有限公司 | Rotor anti-aging insulation design of generator converter under feed state |
-
2010
- 2010-10-18 CN CN201010510009A patent/CN101951093B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2764038Y (en) * | 2005-01-25 | 2006-03-08 | 锦州韩华电装有限公司 | Armature with insulation fixing ring |
| CN101064455A (en) * | 2006-04-28 | 2007-10-31 | 乐金电子(天津)电器有限公司 | Insulator plate of machine winding coil |
| CN101098094A (en) * | 2007-07-13 | 2008-01-02 | 张嘉宏 | Integrated insulation cushion slot paper |
| CN101789655A (en) * | 2010-03-05 | 2010-07-28 | 大连天元电机股份有限公司 | Rotor anti-aging insulation design of generator converter under feed state |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588868A (en) * | 2017-09-11 | 2018-01-16 | 哈尔滨电机厂有限责任公司 | Turn-to-turn pressure detection method during the centripetal pole coil of hydrogenerator is hot-forming |
| CN112510943A (en) * | 2020-11-27 | 2021-03-16 | 上海电气电站设备有限公司 | Rotor turn-to-turn insulation pre-glued filler strip and bonding method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101951093B (en) | 2012-09-26 |
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