CN106549541B - A kind of high-temperature electric machine armature insulation treatment process - Google Patents
A kind of high-temperature electric machine armature insulation treatment process Download PDFInfo
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- CN106549541B CN106549541B CN201611121818.4A CN201611121818A CN106549541B CN 106549541 B CN106549541 B CN 106549541B CN 201611121818 A CN201611121818 A CN 201611121818A CN 106549541 B CN106549541 B CN 106549541B
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- 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
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- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of high-temperature electric machine armature insulation treatment process, processing step includes the coiling of high-temperature electric magnet-wire, insulated paint dipping, slot insulation and solder joint high-temperature insulation；The high-temperature electric magnet-wire coiling is assembled using sectional type punching form, then welds stitching portion with Laser Welding, the armature after welding carries out winding overhang wiring and dipping lacquer again；The insulated paint dipping realizes high-temperature insulation dipping lacquer in such a way that vacuum paint dipping is combined with pressure immersion varnish；The slot insulation uses the cured method of brushing high-temperature insulation paint progress in iron core slot to be formed；The solder joint high-temperature insulation is that the solder joint between each phase winding of motor transfers core with resistance to 400 DEG C of hookup wires, wraps up solder joint with its insulating layer.The present invention realizes the trial-production of high-temperature power generation machine, obtains being able to satisfy heatproof up to 400 DEG C of high-temperature electric machine insulating materials processing technology, to realize the production of high-temperature electric machine by handling high-temperature electric machine coiling, dipping high temperature lacquer and solder joint insulation.
Description
Technical field
The invention belongs to motor insulation technology fields, are specifically related to a kind of high-temperature electric machine armature insulation treatment process.
Background technique
The heat resistance of motor depends on used insulating materials temperature resistant grade.Ordinary motor traditional has due to using
Machine insulating materials, the heat resistance of motor is generally no more than 260 DEG C.Certain generator is since use environment temperature is higher and armature
For direct heated part, it is desirable that 400 DEG C of high temperature can be born.However, the electromagnetic wire of resistance to 400 DEG C of high temperature domestic at present be glass fiber around
Envelope curve, it is thicker (about 0.35mm) that there are thickness of insulating layer, and minimum coiling radius is 8 times of line footpath, the realization of winding process compared with
For difficulty.Meanwhile the insulated paint dipping main component of resistance to 400 DEG C of high temperature is inorganic material, there is easy precipitating, impregnation uniformity not
It is easily cracked after good, dipping solidification.Secondly, the high-temperature insulation method of solder joint mainly uses polyfluortetraethylene pipe to carry out absolutely
There is fracture phenomena experiments have shown that polyfluortetraethylene pipe works long hours under 400 DEG C of high temperature will lead to material hardening in edge.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of high-temperature electric machine armature insulation treatment process.
The present invention is achieved by the following technical programs.
A kind of high-temperature electric machine armature insulation treatment process, includes the following steps:
(1) high-temperature electric magnet-wire coiling: it is assembled using sectional type punching form, then stitching portion is welded with Laser Welding, and
The tooth block mark in order that spelling has been justified as the subsequent selection tooth block of motor, then carries out dipping lacquer respectively and forms slot insulation, is used for tooth
The processing of block armature, and then realize that the armature after the coiling welding of high-temperature electric magnet-wire carries out winding overhang wiring and dipping lacquer again；
(2) insulated paint impregnates: realizing high-temperature insulation dipping lacquer, dipping lacquer in such a way that vacuum paint dipping is combined with pressurization dipping lacquer
Curing process is determined according to the design feature of motor afterwards；
(3) slot insulation: cured method formation slot insulation is carried out using high-temperature insulation paint is brushed in iron core slot；
(4) solder joint high-temperature insulation: solder joint is welded by the way of melting welding between each phase winding of motor, and use is resistance to
The high-temperature hook-up wire that the hookup wire interception part line footpath of 400 DEG C of high temperature is 0.8mm, takes out internal core, utilizes remaining insulating bag
Covering layer makees insulating sleeve, covers the formation insulating layer at solder joint.
(1) the high temperature electromagnetic wire is the wrapped nickel plated copper wire of alkali-free glass wool, impregnates after wrapped and contains organosilicon and pottery
The high temperature lacquer of porcelain ingredient.
The core of step (1) the high temperature electromagnetic wire is 0.40mm, thickness of insulating layer 0.35mm.
Sectional type punching form is assemblied into each 3 punchings of two kinds of tolerances and carries out assembly in the step (1).
Curing process is after impregnating high-temperature insulation paint respectively in 120 DEG C, 150 DEG C, 180 DEG C, 220 in the step (2)
DEG C and 250 DEG C at a temperature of respectively bake 2h, 10h in total adds up dipping lacquer 2 times.
The vacuum degree of vacuum paint dipping is 2000Pa in the step (2), and the vacuum paint dipping time is 15min.
The pressure of pressure dipping lacquer is 0.3Mpa in the step (2), and the pressure dipping lacquer time is 20min.
In the step (3) in iron core slot brush high-temperature insulation paint be formed by curing slot insulation method and step it is as follows:
A, armature core is cleaned up to surface with 108# gasoline without greasy dirt, 10min is dried at normal temperature, then by iron
Core is put into drying oven, is cooled to 80 DEG C after baking 3h at 120 DEG C；
B, the viscosity impregnated with the insulated paint of the resistance to 400 DEG C of high temperature of viscosity meter, and with diluent by impregnating varnish viscosity tune
It is whole within the scope of 60s~120s；
C, armature core is taken out, the resistance to 400 DEG C of high-temperature insulation paints dipping for adjusting viscosity is dipped with hairbrush, uniformly brushes electricity
Pivot iron core slot inner surface；
D, the armature core slot after brushing is placed horizontally in drying oven, respectively 120 DEG C, 150 DEG C, 180 DEG C,
2h is respectively baked at a temperature of 220 DEG C and 250 DEG C to be solidified, and closes baking oven heating after being baked onto the time, core armature iron core is with baking
Case is cooled to 50 DEG C or less；
E, insulated paint dipping is brushed by step (c) operation requirement again, is solidified and cooled down by step (d) requirement.
The beneficial effects of the present invention are:
The present invention realizes high-temperature power generation by handling high-temperature electric machine coiling, dipping high temperature lacquer and solder joint insulation
The trial-production of machine detects its insulation resistance and is greater than 2M Ω, meet so that high-temperature electric machine takes out after keeping the temperature 2h at 400 DEG C in 1min
Work the requirement of 2h at 400 DEG C of high-temperature electric machine.The present invention is verified by the processing technology to main insulating materials,
It obtains being able to satisfy heatproof up to 400 DEG C of high-temperature electric machine insulating materials processing technology, realizes the production of resistance to 400 DEG C of high temperature model machines, from
And realize the production of high-temperature electric machine.
Specific embodiment
Technical solution of the present invention is further described below with reference to embodiment, but claimed range is not limited to institute
It states.
A kind of high-temperature electric machine armature insulation treatment process, processing step include the coiling of high-temperature electric magnet-wire, insulated paint dipping,
Slot insulation and solder joint high-temperature insulation；
The high-temperature electric magnet-wire coiling is assembled using sectional type punching form, then welds stitching portion with Laser Welding, and
The tooth block mark in order that spelling has been justified as the subsequent selection tooth block of motor, then carries out dipping lacquer respectively and forms slot insulation, is used for tooth
The processing of block armature, the armature after welding carry out winding overhang wiring and dipping lacquer again；It is assembled using sectional type punching form, it can be improved
Power generation performance makes copper factor reach 80%；Due to electromagnetic wire it is wrapped after impregnated insulating paint reinforce, in order to guarantee paint film quality and
The insulation performance of electromagnetic wire designs tooling in practical applications and controls coiling radius, guarantees that minimum coiling radius cannot
Less than 8 times of line footpath, shaping is reduced after coiling, prevents insulating layer from damaging.It is offline to be not allow for other sharppointed articles auxiliary, it is offline
When carry out by row around mode, it is desirable that disposable coiling is in place；Tooth block end is sharply located to carry out rounding processing, is brushed again after rounding
High temperature lacquer prevents high-temperature electric magnet-wire to be scratched in corner, directly contacts with tooth block, and then it is unqualified etc. to cause to insulate after coiling
Measure, and then realize the coiling of high-temperature electric magnet-wire.
The insulated paint dipping realizes high-temperature insulation dipping lacquer, dipping lacquer in such a way that vacuum paint dipping is combined with pressurization dipping lacquer
The design feature for carrying out motor afterwards determines curing process；400 DEG C of high-temperature electric machine impregnating varnishes are in organic-silicon-modified epoxy insulation
It joined superfine ceramic micro mist and glass powder resistant to high temperature in paint to be made.
The heatproof requirement of high-temperature electric machine so that the common slot insulation material such as Kapton and insulating paper apply by
Limitation.Small and special electric machine is small in size, and the thickness requirement of slot insulation material is thin.Therefore slot insulation uses the brushing high temperature in iron core slot exhausted
Edge paint carries out cured method and is formed.
Since high-temperature electric machine is assembled using piecemeal armature, machine winding is delta connection, and lead-out wire is by winding wire
It directly leads out, so that motor, finally there are three solder joint, solder joint is welded by the way of melting welding between each phase winding of motor, adopts
The high-temperature hook-up wire for being 0.8mm with the hookup wire of resistance to 400 DEG C of high temperature interception part line footpath, takes out internal core, absolutely using residue
Edge wrapping layer makees insulating sleeve, covers and forms reliable insulating layer at solder joint；The hookup wire be PTEF winding wire, PI winding wire or
PTFE winding wire.
The high-temperature electric magnet-wire is the wrapped nickel plated copper wire of alkali-free glass wool, impregnates after wrapped and contains organosilicon and ceramic composition
High temperature lacquer.
The core of the high-temperature electric magnet-wire is 0.40mm, thickness of insulating layer 0.35mm.
The sectional type punching form is assemblied into each 3 punchings of two kinds of tolerances and carries out assembly.
The curing process is after impregnating high-temperature insulation paint respectively at 120 DEG C, 150 DEG C, 180 DEG C, 220 DEG C and 250 DEG C
At a temperature of respectively bake 2h, 10h in total adds up dipping lacquer 2 times.
The vacuum degree of the vacuum paint dipping is 2000Pa, and the vacuum paint dipping time is 15min.
The pressure of the pressure dipping lacquer is 0.3Mpa, and the pressure dipping lacquer time is 20min.
The method and step that the brushing high-temperature insulation paint in iron core slot is formed by curing slot insulation is as follows:
A, armature core is cleaned up to surface with 108# gasoline without greasy dirt, 10min is dried at normal temperature, then by iron
Core is put into drying oven, is cooled to 80 DEG C after baking 3h at 120 DEG C；
B, the viscosity impregnated with the insulated paint of the resistance to 400 DEG C of high temperature of viscosity meter, and with diluent by impregnating varnish viscosity tune
It is whole within the scope of 60s~120s；Here the viscosity used is calculated as B4 viscosimeter；
C, armature core is taken out, the resistance to 400 DEG C of high-temperature insulation paints dipping for adjusting viscosity is dipped with hairbrush, uniformly brushes electricity
Pivot iron core slot inner surface；Here hairbrush is dipped in be dipped in using small size hairbrush；
D, the armature core slot after brushing is placed horizontally in drying oven, respectively 120 DEG C, 150 DEG C, 180 DEG C,
2h is respectively baked at a temperature of 220 DEG C and 250 DEG C to be solidified, and closes baking oven heating after being baked onto the time, core armature iron core is with baking
Case is cooled to 50 DEG C or less；
E, insulated paint dipping is brushed by step (c) operation requirement again, is solidified and cooled down by step (d) requirement.
According to insulation resistance > 500M Ω, pressure resistance > 1.5KV in above-mentioned steps treated armature core slot.
In practical applications, some aviation units and other military project frontiers also have high-temperature electric machine to develop demand, rocket hair
Motivation flame jet is oriented to driving motor, advanced nuclear reactor (sea dress is referred to as " Advanced Reactor ") control rod drive mechanism, subway
The emergency such as tunnel smoke exhaust fan (it is required that the sustainable operation 1h in flame), high temperature superconducting materia phase transition controller etc..These
Special application is required to motor energy long period steady operation in high temperature.Insulating treatment process of the present invention is
Solid technical foundation has been established in trial-production, the production of above-mentioned high-temperature electric machine, to realize the production of high-temperature electric machine.
Claims (8)
1. a kind of high-temperature electric machine armature insulation treatment process, characterized by the following steps:
(1) high-temperature electric magnet-wire coiling: it is assembled using sectional type punching form, then stitching portion is welded with Laser Welding, and will spell
The tooth block mark in order justified as the subsequent selection tooth block of motor, then carries out dipping lacquer and forms slot insulation, respectively for tooth block electricity
Pivot processing, and then realize that the armature after the coiling welding of high-temperature electric magnet-wire carries out winding overhang wiring and dipping lacquer again；
(2) insulated paint impregnates: realizing high-temperature insulation dipping lacquer, root after dipping lacquer in such a way that vacuum paint dipping is combined with pressurization dipping lacquer
Curing process is determined according to the design feature of motor；
(3) slot insulation: cured method formation slot insulation is carried out using high-temperature insulation paint is brushed in iron core slot；
(4) solder joint high-temperature insulation: solder joint is welded by the way of melting welding between each phase winding of motor, using resistance to 400 DEG C
The high-temperature hook-up wire that the hookup wire interception part line footpath of high temperature is 0.8mm, is taken out internal core, is made using remaining insulating bag covering layer
Insulating sleeve covers the formation insulating layer at solder joint.
2. a kind of high-temperature electric machine armature insulation treatment process as described in claim 1, it is characterised in that: in the step (1)
High-temperature electric magnet-wire is the wrapped nickel plated copper wire of alkali-free glass wool, impregnates the high temperature lacquer containing organosilicon and ceramic composition after wrapped.
3. a kind of high-temperature electric machine armature insulation treatment process as described in claim 1, it is characterised in that: in the step (1)
The core of high-temperature electric magnet-wire is 0.40mm, thickness of insulating layer 0.35mm.
4. a kind of high-temperature electric machine armature insulation treatment process as described in claim 1, it is characterised in that: in the step (1)
Sectional type punching form is assemblied into each 3 punchings of two kinds of tolerances and carries out assembly.
5. a kind of high-temperature electric machine armature insulation treatment process as described in claim 1, it is characterised in that: in the step (2)
Curing process is that will respectively bake at a temperature of 120 DEG C, 150 DEG C, 180 DEG C, 220 DEG C and 250 DEG C respectively after high-temperature insulation paint dipping
2h, in total 10h are solidified after first carrying out 1 time dipping lacquer by curing process, then after carrying out 1 time dipping lacquer, by curing process again into
Row solidification.
6. a kind of high-temperature electric machine armature insulation treatment process as described in claim 1, it is characterised in that: in the step (2)
The vacuum degree of vacuum paint dipping is 2000Pa, and the vacuum paint dipping time is 15min.
7. a kind of high-temperature electric machine armature insulation treatment process as described in claim 1, it is characterised in that: in the step (2)
The pressure for pressing dipping lacquer is 0.3Mpa, and the pressurization dipping lacquer time is 20min.
8. a kind of high-temperature electric machine armature insulation treatment process as described in claim 1, it is characterised in that: in the step (3)
In iron core slot brush high-temperature insulation paint be formed by curing slot insulation method and step it is as follows:
A, armature core is cleaned up to surface with 108# gasoline without greasy dirt, dries 10min at normal temperature, then puts iron core
Enter drying oven, is cooled to 80 DEG C after baking 3h at 120 DEG C；
B, the viscosity impregnated with the insulated paint of the resistance to 400 DEG C of high temperature of viscosity meter, and with diluent by impregnating varnish viscosity adjust to
Within the scope of 60s ~ 120s；
C, armature core is taken out, the resistance to 400 DEG C of high-temperature insulation paints dipping for adjusting viscosity is dipped with hairbrush, uniformly brushes armature
Iron core slot inner surface；
D, the armature core slot after brushing is placed horizontally in drying oven, respectively at 120 DEG C, 150 DEG C, 180 DEG C, 220 DEG C
2h is respectively baked at a temperature of with 250 DEG C to be solidified, and closes baking oven heating after being baked onto the time, core armature iron core cools down with baking oven
To 50 DEG C or less；
E, insulated paint dipping is brushed by step (c) operation requirement again, is solidified and cooled down by step (d) requirement.
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| CN201611121818.4A CN106549541B (en) | 2016-12-08 | 2016-12-08 | A kind of high-temperature electric machine armature insulation treatment process |
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| CN201611121818.4A CN106549541B (en) | 2016-12-08 | 2016-12-08 | A kind of high-temperature electric machine armature insulation treatment process |
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| CN112466663B (en) * | 2020-11-09 | 2022-09-06 | 太仓优盛电子有限公司 | High-temperature dipping treatment process of transformer |
| CN113556014B (en) * | 2021-07-27 | 2022-04-22 | 上海马拉松·革新电气有限公司 | Insulation method for rotor winding of salient-pole wound generator |
| CN114189116A (en) * | 2021-11-20 | 2022-03-15 | 重庆虎溪电机工业有限责任公司 | Method for protecting hollow shaft of armature during insulation treatment |
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| CN105048681A (en) * | 2015-06-30 | 2015-11-11 | 蓬莱市特种绝缘材料厂 | Motor insulation system for nuclear power units |
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| JP2001061249A (en) * | 1999-08-23 | 2001-03-06 | Toyota Autom Loom Works Ltd | Structure of interphase paper used for rotating system electric apparatus |
| JP2003189523A (en) * | 2001-12-21 | 2003-07-04 | Aisin Aw Co Ltd | Varnish drop impregnation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101075758A (en) * | 2007-06-15 | 2007-11-21 | 江苏安捷机电技术有限公司 | Insulating system with double-strength, zero-air-gap and corona resistance for electric motor of non-gear permanent-magnetic tractor |
| CN201893624U (en) * | 2010-09-13 | 2011-07-06 | 浙江西子富沃德电机有限公司 | Stator core of motor |
| CN103457417A (en) * | 2013-09-12 | 2013-12-18 | 安徽奥特佳科技发展有限公司 | Leading-out method for brushless direct current motor outgoing lines for electric compressor |
| CN105048681A (en) * | 2015-06-30 | 2015-11-11 | 蓬莱市特种绝缘材料厂 | Motor insulation system for nuclear power units |
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