CN106549541A - A kind of high-temperature electric machine armature insulation handling process - Google Patents
A kind of high-temperature electric machine armature insulation handling process Download PDFInfo
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- CN106549541A CN106549541A CN201611121818.4A CN201611121818A CN106549541A CN 106549541 A CN106549541 A CN 106549541A CN 201611121818 A CN201611121818 A CN 201611121818A CN 106549541 A CN106549541 A CN 106549541A
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- temperature
- insulation
- dipping
- electric machine
- armature
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of high-temperature electric machine armature insulation handling process, its processing step includes high-temperature electric magnet-wire coiling, insullac dipping, slot insulation and solder joint high-temperature insulation；High-temperature electric magnet-wire coiling is assembled using sectional type punching form, and then stitching portion is welded with Laser Welding, and the armature after welding carries out winding overhang wiring and dipping lacquer again；The insullac dipping realizes high-temperature insulation dipping lacquer by the way of vacuum paint dipping is combined with pressure immersion varnish；The slot insulation is formed using the method solidified by high-temperature insulation paint is brushed in the iron core slot；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 barrier.The present invention realizes the trial-production of high-temperature power generation machine, obtains meeting the high-temperature electric machine insulant processing technique that heatproof is up to 400 DEG C, it is achieved thereby that the production of high-temperature electric machine by processing to high-temperature electric machine coiling, dipping high temperature lacquer and solder joint insulation.
Description
Technical field
The invention belongs to electrical machine insulation technical field, is specifically related to a kind of high-temperature electric machine armature insulation handling process.
Background technology
The heat resistance of motor depends on adopted insulant temperature resistant grade.Common electric machine is due to being had using traditional
Machine insulant, the heat resistance of motor are general no more than 260 DEG C.Certain electromotor is as use environment temperature is higher and armature
For direct heated part, it is desirable to 400 DEG C of high temperature can be born.However, at present the electromagnetic wire of domestic resistance to 400 DEG C of high temperature be glass fiber around
, there is thickness of insulating layer thicker (about 0.35mm) in envelope curve, 8 times for line footpath of minimum coiling radius, the realization of winding process compared with
For difficulty.Meanwhile, the insullac dipping main component of resistance to 400 DEG C of high temperature is inorganic material, there is easy precipitation, impregnation uniformity not
Easily there is crackle after good, dipping solidification.Secondly, the high-temperature insulation method of solder joint is mainly carried out absolutely using polyfluortetraethylene pipe
Edge, test shows that polyfluortetraethylene pipe works long hours under 400 DEG C of high temperature can cause hardened material, fracture phenomena occur.
The content of the invention
To solve above-mentioned technical problem, the invention provides a kind of high-temperature electric machine armature insulation handling process.
The present invention is achieved by the following technical programs.
A kind of high-temperature electric machine armature insulation handling process, comprises the 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, subsequently selects tooth block as motor, then carries out dipping lacquer formation slot insulation respectively, for tooth
Block armature is processed, and then realizes that the armature after the coiling welding of high-temperature electric magnet-wire carries out winding overhang wiring and dipping lacquer again；
(2) insullac dipping：High-temperature insulation dipping lacquer, dipping lacquer are realized by the way of vacuum paint dipping is combined with pressurization dipping lacquer
Curing process is determined according to the construction featuress of motor afterwards；
(3) slot insulation：Slot insulation is formed using the method solidified by high-temperature insulation paint is brushed in the iron core slot；
(4) solder joint high-temperature insulation：Between each phase winding of motor, solder joint is welded by the way of melting welding, using resistance to
The hookup wire of 400 DEG C of high temperature intercepts high-temperature hook-up wire of the part line footpath for 0.8mm, takes out internal core, using remaining insulating bag
Covering layer makees insulated sleeve, is enclosed within formation insulating barrier at solder joint.
(1) the high temperature electromagnetic wire is the wrapped nickel plated copper wire of alkali-free glass wool, and wrapped rear dipping is containing organosilicon and pottery
The high temperature lacquer of porcelain composition.
The core of step (1) the high temperature electromagnetic wire is 0.40mm, and thickness of insulating layer is 0.35mm.
In the step (1), sectional type punching form is assemblied into the punching of each 3 of two kinds of tolerances and carries out assembly.
In the step (2) curing process be by high-temperature insulation paint impregnate after respectively 120 DEG C, 150 DEG C, 180 DEG C, 220
DEG C and 250 DEG C at a temperature of it is each bakee 2h, 10h, adds up dipping lacquer 2 times altogether.
In the step (2), the vacuum of vacuum paint dipping is 2000Pa, and the vacuum paint dipping time is 15min.
In the step (2), the pressure of pressure dipping lacquer is 0.3Mpa, and the pressure dipping lacquer time is 20min.
Brush in the iron core slot in the step (3) high-temperature insulation paint solidify to form slot insulation method and step it is as follows：
A, armature core is cleaned up to surface without greasy dirt with 108# gasoline, dry 10min at normal temperatures, then by ferrum
Core is put into drying oven, is cooled to 80 DEG C after bakeing 3h at 120 DEG C；
B, the viscosity impregnated with the insullac of the resistance to 400 DEG C of high temperature of viscosity meter, and impregnating varnish viscosity is adjusted with diluent
It is whole to 60s～120s；
C, taking-up armature core, dip the resistance to 400 DEG C of high-temperature insulation paints dipping for adjusting viscosity with hairbrush, uniform to brush electricity
Pivot iron core slot inner surface；
D, the armature core groove after brushing is placed horizontally in drying oven, respectively 120 DEG C, 150 DEG C, 180 DEG C,
At a temperature of 220 DEG C and 250 DEG C, each 2h that bakees is solidified, and baking oven for heating is closed after being baked onto the time, and core armature iron core is with baking
Case is cooled to less than 50 DEG C；
E, again by step (c) operation requirements brush insullac impregnate, solidified and lowered the temperature by step (d) requirement.
The beneficial effects of the present invention is：
The present invention realizes high-temperature power generation by processing to high-temperature electric machine coiling, dipping high temperature lacquer and solder joint insulation
The trial-production of machine so that high-temperature electric machine is taken out after being incubated 2h at 400 DEG C, detects in 1min that its insulation resistance is more than 2M Ω, meets
Work at 400 DEG C of high-temperature electric machine the use requirement of 2h.It is of the invention to be verified by the processing technique to main insulant,
Obtain meeting heatproof up to 400 DEG C of high-temperature electric machine insulant processing technique, realize 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 scheme is further described with reference to embodiment, but claimed scope is not limited to institute
State.
A kind of high-temperature electric machine armature insulation handling process, its processing step include high-temperature electric magnet-wire coiling, insullac dipping,
Slot insulation and solder joint high-temperature insulation；
High-temperature electric magnet-wire coiling is assembled using sectional type punching form, and then stitching portion is welded with Laser Welding, and
The tooth block mark in order that spelling has been justified, subsequently selects tooth block as motor, then carries out dipping lacquer formation slot insulation respectively, for tooth
Block armature is processed, and the armature after welding carries out winding overhang wiring and dipping lacquer again；It is assembled using sectional type punching form, can improve
Power generation performance, makes copper factor reach 80%；As the wrapped rear impregnated insulating paint of electromagnetic wire is reinforced, in order to ensure paint film quality and
The insulating properties of electromagnetic wire, design frock in actual applications and coiling radius are controlled, it is ensured that minimum coiling radius can not
Less than 8 times of line footpath, shaping after coiling, is reduced, prevent insulating barrier from damaging.It is not allow for other sharppointed article auxiliary offline, it is offline
When carry out around mode by row, it is desirable to disposable coiling is in place；Tooth block end sharp place is carried out into rounding process, is brushed after rounding again
High temperature lacquer, is prevented high-temperature electric magnet-wire to be scratched around the corner, is directly contacted with tooth block, and then it is unqualified etc. to insulate after causing coiling
Measure, and then realize the coiling of high-temperature electric magnet-wire.
The insullac dipping realizes high-temperature insulation dipping lacquer, dipping lacquer by the way of vacuum paint dipping is combined with pressurization dipping lacquer
The construction featuress for carrying out motor afterwards determine curing process；400 DEG C of high-temperature electric machine impregnating varnishes are in organic-silicon-modified epoxy insulation
Resistant to elevated temperatures superfine ceramic micropowder is added in paint and glass dust is obtained.
The heatproof of high-temperature electric machine is required so that the slot insulation materials application such as conventional Kapton and insulating paper is subject to
Limit.Small and special electric machine small volume, the thickness requirement of slot insulation material are thin.Therefore slot insulation is exhausted using high temperature is brushed in iron core slot
The method solidified by edge paint is formed.
As high-temperature electric machine is assembled using piecemeal armature, machine winding is delta connection, and lead-out wire is by winding wire
Directly lead out so that motor finally there are three solder joints, and between each phase winding of motor, solder joint is welded by the way of melting welding, is adopted
The high-temperature hook-up wire that part line footpath is 0.8mm is intercepted with the hookup wire of resistance to 400 DEG C of high temperature, internal core is taken out, using remaining exhausted
Edge integument makees insulated sleeve, is enclosed within solder joint and forms reliable insulating barrier；The hookup wire be PTEF winding wires, PI winding wires or
PTFE winding wires.
The high-temperature electric magnet-wire is the wrapped nickel plated copper wire of alkali-free glass wool, and wrapped rear dipping is containing organosilicon and ceramic component
High temperature lacquer.
The core of the high-temperature electric magnet-wire is 0.40mm, and thickness of insulating layer is 0.35mm.
The sectional type punching form is assemblied into the punching of each 3 of two kinds of tolerances and carries out assembly.
The curing process be by high-temperature insulation paint impregnate after respectively at 120 DEG C, 150 DEG C, 180 DEG C, 220 DEG C and 250 DEG C
At a temperature of it is each bakee 2h, 10h, adds up dipping lacquer 2 times altogether.
The vacuum 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 solidify to form slot insulation is as follows：
A, armature core is cleaned up to surface without greasy dirt with 108# gasoline, dry 10min at normal temperatures, then by ferrum
Core is put into drying oven, is cooled to 80 DEG C after bakeing 3h at 120 DEG C；
B, the viscosity impregnated with the insullac of the resistance to 400 DEG C of high temperature of viscosity meter, and impregnating varnish viscosity is adjusted with diluent
It is whole to 60s～120s；Here the viscosity for adopting is calculated as B4 viscometers；
C, taking-up armature core, dip the resistance to 400 DEG C of high-temperature insulation paints dipping for adjusting viscosity with hairbrush, uniform to brush electricity
Pivot iron core slot inner surface；Here hairbrush is dipped in and is dipped in using small size hairbrush；
D, the armature core groove after brushing is placed horizontally in drying oven, respectively 120 DEG C, 150 DEG C, 180 DEG C,
At a temperature of 220 DEG C and 250 DEG C, each 2h that bakees is solidified, and baking oven for heating is closed after being baked onto the time, and core armature iron core is with baking
Case is cooled to less than 50 DEG C；
E, again by step (c) operation requirements brush insullac impregnate, solidified and lowered the temperature by step (d) requirement.
According to the insulation resistance in the armature core groove after above-mentioned steps process>500M Ω, it is pressure>1.5KV.
In actual applications, some aviation units and other military project frontiers also have high-temperature electric machine to develop demand, and rocket is sent out
Motivation flame jet is oriented to motor, advanced nuclear reactor (sea dress is referred to as " Advanced Reactor ") CRDM, subway
The emergent smoke exhaust fan such as tunnel (requiring the sustainable operation 1h in flame), high temperature superconducting materia phase in version controller etc..These
Special application scenario 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 the trial-production of above-mentioned high-temperature electric machine, production, it is achieved thereby that the production of high-temperature electric machine.
Claims (8)
1. a kind of high-temperature electric machine armature insulation handling process, it is characterised in that：Comprise the 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 be spelled
The tooth block mark in order justified, subsequently selects tooth block as motor, then carries out dipping lacquer formation slot insulation respectively, for tooth block electricity
Pivot is processed, and then realizes that the armature after the coiling welding of high-temperature electric magnet-wire carries out winding overhang wiring and dipping lacquer again；
(2) insullac dipping：High-temperature insulation dipping lacquer is realized by the way of vacuum paint dipping is combined with pressurization dipping lacquer, root after dipping lacquer
Curing process is determined according to the construction featuress of motor；
(3) slot insulation：Slot insulation is formed using the method solidified by high-temperature insulation paint is brushed in the iron core slot；
(4) solder joint high-temperature insulation：Between each phase winding of motor, solder joint is welded by the way of melting welding, using resistance to 400 DEG C
The hookup wire of high temperature intercepts high-temperature hook-up wire of the part line footpath for 0.8mm, takes out internal core, is made using remaining insulating bag covering layer
Insulated sleeve, is enclosed within formation insulating barrier at solder joint.
2. a kind of high-temperature electric machine armature insulation handling process as claimed in claim 1, it is characterised in that：(1) high temperature
Electromagnetic wire is the wrapped nickel plated copper wire of alkali-free glass wool, wrapped rear high temperature lacquer of the dipping containing organosilicon and ceramic component.
3. a kind of high-temperature electric machine armature insulation handling process as claimed in claim 1, it is characterised in that：In the step (1)
The core of high-temperature electric magnet-wire is 0.40mm, and thickness of insulating layer is 0.35mm.
4. a kind of high-temperature electric machine armature insulation handling process as claimed in claim 1, it is characterised in that：In the step (1)
Sectional type punching form is assemblied into the punching of each 3 of two kinds of tolerances and carries out assembly.
5. a kind of high-temperature electric machine armature insulation handling process as claimed in claim 1, it is characterised in that：In the step (2)
Curing process be high-temperature insulation paint is impregnated after respectively bakee at a temperature of 120 DEG C, 150 DEG C, 180 DEG C, 220 DEG C and 250 DEG C respectively
2h, 10h, adds up dipping lacquer 2 times altogether.
6. a kind of high-temperature electric machine armature insulation handling process as claimed in claim 1, it is characterised in that：In the step (2)
The vacuum of vacuum paint dipping is 2000Pa, and the vacuum paint dipping time is 15min.
7. a kind of high-temperature electric machine armature insulation handling process as claimed in claim 1, it is characterised in that：In the step (2)
The pressure of pressure dipping lacquer is 0.3Mpa, and the pressurization dipping lacquer time is 20min.
8. a kind of high-temperature electric machine armature insulation handling process as claimed in claim 1, it is characterised in that：In the step (3)
Brush in the iron core slot high-temperature insulation paint solidify to form slot insulation method and step it is as follows：
A, armature core is cleaned up to surface without greasy dirt with 108# gasoline, dry 10min at normal temperatures, then iron core is put
Enter drying oven, be cooled to 80 DEG C after 3h being bakeed at 120 DEG C；
B, the viscosity impregnated with the insullac of the resistance to 400 DEG C of high temperature of viscosity meter, and with diluent by impregnating varnish viscosity adjust to
In the range of 60s～120s；
C, taking-up armature core, dip the resistance to 400 DEG C of high-temperature insulation paints dipping for adjusting viscosity with hairbrush, uniform to brush armature ferrum
Core groove inner surface；
D, the armature core groove after brushing is placed horizontally in drying oven, respectively at 120 DEG C, 150 DEG C, 180 DEG C, 220 DEG C
With 250 DEG C at a temperature of each 2h that bakees solidified, baking oven for heating is closed after being baked onto the time, core armature iron core is lowered the temperature with baking oven
To less than 50 DEG C；
E, again by step (c) operation requirements brush insullac impregnate, solidified and lowered the temperature by step (d) requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN106549541A true CN106549541A (en) | 2017-03-29 |
| CN106549541B CN106549541B (en) | 2019-03-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466663A (en) * | 2020-11-09 | 2021-03-09 | 太仓优盛电子有限公司 | High-temperature dipping treatment process of transformer |
| CN113556014A (en) * | 2021-07-27 | 2021-10-26 | 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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| 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466663A (en) * | 2020-11-09 | 2021-03-09 | 太仓优盛电子有限公司 | High-temperature dipping treatment process of transformer |
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| 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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| CN106549541B (en) | 2019-03-05 |
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