CN108282061A - Heating, vacuum and vacuum pressure impregnated with varnish in winding - Google Patents
Heating, vacuum and vacuum pressure impregnated with varnish in winding Download PDFInfo
- Publication number
- CN108282061A CN108282061A CN201810013097.8A CN201810013097A CN108282061A CN 108282061 A CN108282061 A CN 108282061A CN 201810013097 A CN201810013097 A CN 201810013097A CN 108282061 A CN108282061 A CN 108282061A
- Authority
- CN
- China
- Prior art keywords
- winding
- vacuum
- heating
- paint
- varnish
- Prior art date
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
Abstract
Patent of invention title：Heating, vacuum and vacuum pressure impregnated with varnish in winding.The inventive technique is suitable for the winding varnished insulation processing of the electrical equipments such as all kinds of low voltage motors, high-voltage motor, New energy automobile motor, transformer, mutual inductor.The shortcomings of country's winding insulation processing equipment is heated using baking oven or drying tunnel at present, and poor, insulation processing extension paint amount that there are winding impregnabilities is less, energy consumption is big；Foreign countries using heating dip painting installation in common there are low production efficiency, safety is poor the problems such as.The patent of invention technology uses vacuum and vacuum pressure impregnated with varnish, is passed through big direct current using special DC power supply using heating technique in winding during dipping lacquer to winding, winding temperature is made to increase, insulated paint solidification.It compared with using baking oven or drying tunnel heating means, hangs paint amount and greatly increases, insulated paint loss substantially reduces, and impregnability improves, and energy consumption is reduced.Compared with common winding method and internal heating, impregnability improves a lot, and production efficiency improves, more securely and reliably.
Description
Technical field
The electrical equipments such as all kinds of low voltage motors, servo motor, high-voltage motor, New energy automobile motor, transformer, mutual inductor
Winding varnished insulation processing equipment.
Background technology
Country's winding insulation processing equipment mainly has that drop paint formula insulation processing equipment, commonly to immerse equipment, pot type true at present
Empty dip painting installation, canister type pressure immersion varnish equipment, continous way immerse equipment, continuous vacuum dip painting installation etc., this kind of equipment
Solidification is all made of baking oven or drying tunnel mode of heating after preliminary drying and dipping lacquer before winding dipping lacquer.There are winding leachings for such insulation processing equipment
Permeability is poor, insulation processing hang paint amount less, paint be lost in the shortcomings of more, energy loss is big.Foreign countries have relatively advanced insulation processing to set
It is standby, it is direct to winding using DC power supply that heating drop paint equipment, dipping lacquer process in equipment and winding are immersed using heating in winding
Heating, to make insulated paint solidify and cure.Heating immerses heating drop paint equipment in equipment and winding there are dipping lacquers to ooze in winding
Permeability is poor, is easy there are bubble, low production efficiency, is not suitable for the problems such as mass production.In addition, since winding passes through direct current
Electrical heating is easy to cremate because of current discharge, causes insulated paint on fire if misoperation；Although the insulation that strict regulations use
Paint requires flash-point necessarily to be greater than 60 degree, but still can not avoid, when winding is heated to 150 degree or so of setting temperature, encountering open fire and firing
It burns, there is very big security risk.
Invention content
Heating, vacuum dip painting installation in winding is soaked using vacuum paint dipping equipment, vacuum pressure impregnated with varnish, continuous vacuum
Equipment is painted, in dipping lacquer process using heating technique in winding, using special DC power supply, large-current electric direct current is provided to winding
Electricity, winding temperature increases insulated paint solidification after energization.Insulation processing comparison is carried out with baking oven or drying tunnel heating means is used merely,
Paint amount is hung using heating, vacuum dip painting installation in winding to greatly increase, insulated paint loss substantially reduces, and impregnability improves, can depletion
Few, insulation processing quality greatly improves.Compared with external common winding internal heating type dip painting installation, as a result of Vaccum Permeating
Paint, impregnability improve a lot.In addition, using heating, vacuum dip painting installation in continous way, production efficiency can greatly improve, can
To be suitble to produce in enormous quantities.Using heating, vacuum in winding and vacuum pressure impregnated with varnish, dipping lacquer process due in vacuum state,
There is no air in paint can；When releasing vacuum and pressurization, inert gas is passed through in paint can again, therefore even if because of misoperation, produce
Raw discharge spark, is also not easy to cause insulated paint on fire, therefore safer.
Description of the drawings
Fig. 1 be Continuous winding in heating, vacuum dip painting installation schematic diagram, including vacuum pump 1, surge tank 2, storage paint can 3,
Filter 4, impregnating vessel 5, the high-power DC power supply 6 of temperature controllable, inert gas holding vessel 7, continuous-type furnace 8.Work
Skill process：Feeding-connection power cord-preliminary drying-hermetically sealed can-vacuumizes-the interior heating of dipping lacquer-- release vacuum and it is passed through indifferent gas
Heating-enters curing area-blanking in body-back paint-drop paint-stopping
Fig. 2 is heating, vacuum dip painting installation in winding, including vacuum pump 1, surge tank 2, storage paint can 3, filter 4, dipping lacquer
Tank 5, DC power supply 6, inert gas holding vessel 7.Technical process：Feeding-connection power cord-hermetically sealed can-vacuumizes-interior heating-
Preliminary drying-dipping lacquer-release vacuum is simultaneously passed through heating-blanking in inert gas-back paint-drop paint-solidification-stopping.
Note：To improve output capacity, solidification can be transferred to baking oven completion.
Fig. 3 be winding in heating, vacuum pressure immersion varnish equipment, including vacuum pump 1, surge tank 2, storage paint can 3, filter 4,
Impregnating vessel 5, DC power supply 6, high-pressure pump 7, inert gas holding vessel 8.Technical process：Feeding-connection power cord-hermetically sealed can-pumping
Interior heating-preliminary drying-dipping lacquer-release the vacuum of vacuum-is simultaneously passed through in inert gas pressurization-back paint-drop paint-solidification-stopping under heating-
Material.
Note：To improve output capacity, solidification can be transferred to baking oven completion.
Specific implementation mode
Heating, vacuum dip painting installation in winding is soaked using vacuum paint dipping equipment, vacuum pressure impregnated with varnish, continuous vacuum
Equipment is painted, is provided to winding using special DC power supply using heating technique in winding in dipping lacquer process and is less than 80V 1500A
Left and right direct current, makes winding temperature increase, and when winding temperature reaches insulated paint setting temperature, the insulated paint of surrounding starts to coagulate
Gu at this point, when winding leaves insulated paint, the insulated paint around winding will not be lost in, to reach better dipping lacquer quality.
Since using heating technique in winding, winding temperature is increased to set point of temperature, iron core and ambient enviroment temperature after energization
Degree raising is smaller, therefore energy consumption reduces significantly.
It, also can be by measuring direct current using the preset thermistor method measuring temperature of winding when winding electrified regulation
Resistance mode calculates winding temperature by software.DC power supply power supply is controlled by program again, to control winding temperature.
To improve efficiency, cures after preliminary drying and gel, baking oven or drying tunnel heating means may be used.Production efficiency can be big
Width improves, and can be suitble to produce in enormous quantities.
Because of misoperation when to avoid dipping lacquer winding from being powered, discharge spark is generated, causes insulated paint on fire.Using in winding
Heating, vacuum and vacuum pressure impregnated with varnish, dipping lacquer process in vacuum state, paint can due to not having air；And releasing vacuum
When with pressurization, it is passed through inert gas in paint can, even if because of misoperation, discharge spark is generated, insulated paint will not be caused on fire,
Therefore the safety is improved.For greater safety, it is desirable that connect insulated paint that is electric safe and reliable, and using flash-point to be higher than 60 degree, and set
It is standby to be mounted with automatic fire extinguisher.
Claims (3)
1. heating, vacuum and vacuum pressure impregnated with varnish in a kind of winding, including it is vacuum pump, surge tank, storage paint can, impregnating vessel, lazy
Property gas storage tank, the high-power DC power supply of temperature controllable, heating furnace, it is characterised in that：Using vacuum paint dipping equipment, very
Pneumatics power dip painting installation and continuous vacuum dip painting installation use special DC in dipping lacquer process using heating technique in winding
Power supply provides large-current electric direct current to winding, and winding temperature increases insulated paint solidification after energization, and electrical equipment winding can be made exhausted
Edge processing quality greatly improves, and ensures safety.
2. heating, vacuum and vacuum pressure impregnated with varnish in winding according to claim 1, it is characterised in that：Winding is powered
When heating, using the preset thermistor method measuring temperature of winding, also it can pass through software by measuring winding D.C. resistance mode
Calculate winding temperature.DC power supply power supply is controlled by program again, to control winding temperature.
3. heating, vacuum and vacuum pressure impregnated with varnish in winding according to claim 1, it is characterised in that：To avoid soaking
It paints when winding is powered because of misoperation, generates discharge spark, cause insulated paint on fire, use heating, vacuum in winding and vacuum pressure
Power dip painting installation, dipping lacquer process in vacuum state, paint can due to not having an air, and when releasing vacuum and pressurization, in paint can
It is passed through inert gas, therefore even if because of misoperation, generates discharge spark, insulated paint will not be caused on fire, the safety is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810013097.8A CN108282061A (en) | 2018-01-04 | 2018-01-04 | Heating, vacuum and vacuum pressure impregnated with varnish in winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810013097.8A CN108282061A (en) | 2018-01-04 | 2018-01-04 | Heating, vacuum and vacuum pressure impregnated with varnish in winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108282061A true CN108282061A (en) | 2018-07-13 |
Family
ID=62803197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810013097.8A Pending CN108282061A (en) | 2018-01-04 | 2018-01-04 | Heating, vacuum and vacuum pressure impregnated with varnish in winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108282061A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092528A (en) * | 2020-01-10 | 2020-05-01 | 横店集团英洛华电气有限公司 | Self-heating curing method for motor winding enameled wire and winding motor adopting method |
| CN113571322A (en) * | 2021-06-28 | 2021-10-29 | 江苏亨特集团华特电气有限公司 | Processing equipment and processing method for transformer iron core |
| CN114915125A (en) * | 2022-06-13 | 2022-08-16 | 瑞昌市森奥达科技有限公司 | Low-voltage large-current motor stator coil heating device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0739120A (en) * | 1993-07-23 | 1995-02-07 | Toshiba Corp | Method and apparatus for varnish treatment of winding |
| JP2006141180A (en) * | 2004-11-15 | 2006-06-01 | Aisin Aw Co Ltd | Varnish impregnator and varnish impregnating method |
| CN101982862A (en) * | 2010-09-14 | 2011-03-02 | 中国科学院电工研究所 | Vacuum impregnation device of Nb3Sn superconducting coil and impregnation method thereof |
| CN102545497A (en) * | 2012-02-13 | 2012-07-04 | 浙江省金华市电机实业有限公司 | Dipping paint drying method for stator random winding |
| CN102868264A (en) * | 2012-09-17 | 2013-01-09 | 无锡航天万源新大力电机有限公司 | Stator winding hot-immersion and heating system and process |
| CN106253613A (en) * | 2015-06-08 | 2016-12-21 | 通用电器技术有限公司 | Rapid impregnation instrument |
-
2018
- 2018-01-04 CN CN201810013097.8A patent/CN108282061A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0739120A (en) * | 1993-07-23 | 1995-02-07 | Toshiba Corp | Method and apparatus for varnish treatment of winding |
| JP2006141180A (en) * | 2004-11-15 | 2006-06-01 | Aisin Aw Co Ltd | Varnish impregnator and varnish impregnating method |
| CN101982862A (en) * | 2010-09-14 | 2011-03-02 | 中国科学院电工研究所 | Vacuum impregnation device of Nb3Sn superconducting coil and impregnation method thereof |
| CN102545497A (en) * | 2012-02-13 | 2012-07-04 | 浙江省金华市电机实业有限公司 | Dipping paint drying method for stator random winding |
| CN102868264A (en) * | 2012-09-17 | 2013-01-09 | 无锡航天万源新大力电机有限公司 | Stator winding hot-immersion and heating system and process |
| CN106253613A (en) * | 2015-06-08 | 2016-12-21 | 通用电器技术有限公司 | Rapid impregnation instrument |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092528A (en) * | 2020-01-10 | 2020-05-01 | 横店集团英洛华电气有限公司 | Self-heating curing method for motor winding enameled wire and winding motor adopting method |
| CN111092528B (en) * | 2020-01-10 | 2023-05-30 | 浙江联宜电机有限公司 | Self-heating method for motor winding enameled wire and winding motor adopting same |
| CN113571322A (en) * | 2021-06-28 | 2021-10-29 | 江苏亨特集团华特电气有限公司 | Processing equipment and processing method for transformer iron core |
| CN113571322B (en) * | 2021-06-28 | 2023-02-28 | 江苏亨特集团华特电气有限公司 | Processing equipment and processing method for transformer iron core |
| CN114915125A (en) * | 2022-06-13 | 2022-08-16 | 瑞昌市森奥达科技有限公司 | Low-voltage large-current motor stator coil heating device |
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