CN102545497A - Dipping paint drying method for stator random winding - Google Patents
Dipping paint drying method for stator random winding Download PDFInfo
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- CN102545497A CN102545497A CN2012100316838A CN201210031683A CN102545497A CN 102545497 A CN102545497 A CN 102545497A CN 2012100316838 A CN2012100316838 A CN 2012100316838A CN 201210031683 A CN201210031683 A CN 201210031683A CN 102545497 A CN102545497 A CN 102545497A
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- stator winding
- stator
- winding
- paint
- drying method
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Abstract
The invention discloses a dipping paint drying method for a stator random winding. The method comprises the following steps of: putting the stator winding into a rotating device, and rotating at a uniform speed; introducing direct current of which the current density is 7-9 A/mm<2> into the stator winding by using a direct-current power supply; raising the temperature of the stator winding to the gelling temperature of 120-140 DEG C; performing touch-up paint on the two end parts of the stator winding in the temperature raising process of the stator winding; when the stator winding reaches the gelling temperature, reducing current and preserving heat; and after insulating paint on the surface of the stator winding is fully solidified, detaching the stator winding from the rotating device. The dipping paint drying method has the advantages that: the temperature raising and lowering speeds of the winding are high, and the process time is only about one eighth of the heating time of a baking oven; and a rotary electric heating system is an open device, so that touch-up paint can be performed on the end parts of a stator in the rotating and drying process, the adhered paint amount is increased, and the stability of electric performance is ensured.
Description
Technical field
The present invention relates to the diffusing embedding winding paint-dipping drying method of a kind of stator.
Background technology
Existing major diameter motor stator loose the embedding winding the normal pressure dipping lacquer with drip lacquer after be placed in the baking oven together with iron core and heat; So the intensification of winding and cooling rate are all very slow; So just reduced production efficiency and increased production cost, and baking oven takes up space greatlyyer, the equipment input cost is high.Because whole baking oven is a confined space, can't drip that the insulating varnish that runs off in the lacquer process is counter to be mended to stator winding end in preceding road in addition, just can not guarantee the extension lacquer amount of stator end, the insulation that influences motor is stable.
Summary of the invention
The object of the present invention is to provide a kind of stator embedding winding paint-dipping drying method of loosing, inefficiency and can't carry out touch-up paint to the end of stator winding in the time of can effectively solving existing stator winding lacquer dipping oven dry causes the problem of unstable product quality.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme: a kind of stator embedding winding paint-dipping drying method of loosing may further comprise the steps successively:
A. dipping lacquer under the stator winding normal pressure, drip lacquer after, stator winding is put into whirligig at the uniform velocity rotates, rotary speed is a not drip from the stator winding of insulating varnish;
B. after stabilization of speed, stator winding is passed to 7～9A/mm with DC power supply
2The direct current that electricity is close makes the temperature of stator winding rise to 120～140 ℃ gelling temp, in the stator winding temperature-rise period, touch-up paint is carried out in two ends of stator winding;
C. after stator winding reaches gelling temp, reduce electric current and be incubated, after stator winding surface insulation lacquer solidifies fully, it is pulled down from whirligig.
Preferably, the time that stator winding temperature rises to 120～140 ℃ gelling temp among the said step B is 25～35 minutes; If the time is too short, gel just when the fugitive constituent of insulating varnish does not volatilize fully makes and accompanies bubble in the paint film; And might cause paint film cracking; Thereby influence insulation property, and the time short just require electric current big, the capacity of so required DC power supply is just big; The equipment input is just high, and the time is oversize then can reduce production efficiency.
Further, the gelling temp of said stator winding is 130 ℃; Best insulating varnish gelling temp.
The temperature element of putting into when preferably, utilizing stator winding to make among the said step B carries out thermometric; Accurately record temperature, prevent that too high product quality or the temperature of influencing of temperature from crossing low and reduce production efficiency.
Compared with prior art, advantage of the present invention is:
1. the equipment input is merely 50% of baking oven, and it is convenient to make system.And shared space is little, and factory building is fully used.
2. because in whole technical process, only the winding to stator partly heats, and stator core and support need not heating, so the intensification of winding and cooling rate are fast, the process time is merely about 1/8 of baking oven heating, and energy consumption is little, and production efficiency is high.
3. in the lacquer process after the normal pressure dipping lacquer is accomplished; Understanding some on-insulated lacquer runs off in stator winding; Because the rotation electric heating system is an open device; In the process of rotary furnace drying, just can carry out touch-up paint like this, extension lacquer amount increased guarantee the stable of electric property the end of stator.
Embodiment
A kind of stator embedding winding paint-dipping drying method of loosing may further comprise the steps successively:
A. dipping lacquer under the stator winding normal pressure, drip lacquer after, stator winding is put into whirligig at the uniform velocity rotates, rotary speed is a not drip from the stator winding of insulating varnish;
B. after stabilization of speed, stator winding is passed to 8A/mm with DC power supply
2The direct current that electricity is close makes the temperature of stator winding rise to 130 ℃ gelling temp at 25～35 minutes, and the temperature element of putting into when utilizing stator winding to make carries out thermometric, in the stator winding temperature-rise period, touch-up paint is carried out in two ends of stator winding;
C. after stator winding reaches gelling temp, reduce electric current and be incubated, after stator winding surface insulation lacquer solidifies fully, it is pulled down from whirligig, put into baking oven and be cured processing.
The equipment input is merely 50% of baking oven, and it is convenient to make system.And shared space is little, and factory building is fully used, because in whole technical process; Only the winding to stator partly heats, and stator core and support need not heating, so the intensification of winding and cooling rate are fast; Process time is merely about 1/8 of baking oven heating, and energy consumption is little, and production efficiency is high; Dripping in the lacquer process after the normal pressure dipping lacquer is accomplished understood some on-insulated lacquer and in stator winding, run off, because the rotation electric heating system is an open device; In the process of rotary furnace drying, just can carry out touch-up paint like this, extension lacquer amount increased guarantee the stable of electric property the end of stator.
The above is merely specific embodiment of the present invention, but technical characterictic of the present invention is not limited thereto, and any those skilled in the art is in the field of the invention, and the variation of being done or modify all is encompassed among the claim of the present invention.
Claims (4)
1. the stator embedding winding paint-dipping drying method of loosing is characterized in that: may further comprise the steps successively:
A. dipping lacquer under the stator winding normal pressure, drip lacquer after, stator winding is put into whirligig at the uniform velocity rotates, rotary speed is a not drip from the stator winding of insulating varnish;
B. after stabilization of speed, stator winding is passed to 7～9A/mm with DC power supply
2The direct current that electricity is close makes the temperature of stator winding rise to 120～140 ℃ gelling temp, in the stator winding temperature-rise period, touch-up paint is carried out in two ends of stator winding;
C. after stator winding reaches gelling temp, reduce electric current and be incubated, after stator winding surface insulation lacquer solidifies entirely, it is pulled down from whirligig.
2. a kind of stator as claimed in claim 1 embedding winding paint-dipping drying method of loosing is characterized in that: to rise to the time of 120～140 ℃ gelling temp be 25～35 minutes to stator winding temperature among the said step B.
3. a kind of stator as claimed in claim 2 embedding winding paint-dipping drying method of loosing, it is characterized in that: the gelling temp of said stator winding is 130 ℃.
4. according to claim 1 or claim 2 a kind of stator embedding winding paint-dipping drying method of loosing, it is characterized in that: the temperature element of putting into when utilizing stator winding to make among the said step B carries out thermometric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100316838A CN102545497A (en) | 2012-02-13 | 2012-02-13 | Dipping paint drying method for stator random winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100316838A CN102545497A (en) | 2012-02-13 | 2012-02-13 | Dipping paint drying method for stator random winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102545497A true CN102545497A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100316838A Pending CN102545497A (en) | 2012-02-13 | 2012-02-13 | Dipping paint drying method for stator random winding |
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| CN (1) | CN102545497A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441629A (en) * | 2013-09-05 | 2013-12-11 | 江苏三江电器集团有限公司 | Motor stator paint dipping technology |
| CN104716798A (en) * | 2015-03-31 | 2015-06-17 | 重庆松普电器有限公司 | Motor stator paint immersion technology |
| RU2558377C2 (en) * | 2013-07-23 | 2015-08-10 | Макаров Алексей Александрович | Electrical machine winding drying method |
| CN108282061A (en) * | 2018-01-04 | 2018-07-13 | 赵文英 | Heating, vacuum and vacuum pressure impregnated with varnish in winding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10127018A (en) * | 1996-10-18 | 1998-05-15 | Fujitsu General Ltd | Stator manufacturing method |
| CN1813321A (en) * | 2003-06-27 | 2006-08-02 | Abb技术公开股份有限公司 | Method for manufacturing a transformer winding |
| CN201418015Y (en) * | 2009-06-01 | 2010-03-03 | 湖南零陵恒远发电设备有限公司 | Heating device for manufacturing mould pressing by generator stator coil |
-
2012
- 2012-02-13 CN CN2012100316838A patent/CN102545497A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10127018A (en) * | 1996-10-18 | 1998-05-15 | Fujitsu General Ltd | Stator manufacturing method |
| CN1813321A (en) * | 2003-06-27 | 2006-08-02 | Abb技术公开股份有限公司 | Method for manufacturing a transformer winding |
| CN201418015Y (en) * | 2009-06-01 | 2010-03-03 | 湖南零陵恒远发电设备有限公司 | Heating device for manufacturing mould pressing by generator stator coil |
Non-Patent Citations (2)
| Title |
|---|
| 《中小型电机》 19880810 林亨澍等 绝缘处理采用旋转干燥法 第12、24页 1-4 第15卷, 第4期 * |
| 林亨澍等: "绝缘处理采用旋转干燥法", 《中小型电机》, vol. 15, no. 4, 10 August 1988 (1988-08-10), pages 12 - 24 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2558377C2 (en) * | 2013-07-23 | 2015-08-10 | Макаров Алексей Александрович | Electrical machine winding drying method |
| CN103441629A (en) * | 2013-09-05 | 2013-12-11 | 江苏三江电器集团有限公司 | Motor stator paint dipping technology |
| CN104716798A (en) * | 2015-03-31 | 2015-06-17 | 重庆松普电器有限公司 | Motor stator paint immersion technology |
| CN108282061A (en) * | 2018-01-04 | 2018-07-13 | 赵文英 | Heating, vacuum and vacuum pressure impregnated with varnish in winding |
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Application publication date: 20120704 |