CN104362786B - 200 grades of low voltage motors dissipate embedding winding insulation structure and its insulating method - Google Patents
200 grades of low voltage motors dissipate embedding winding insulation structure and its insulating method Download PDFInfo
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- CN104362786B CN104362786B CN201410685002.9A CN201410685002A CN104362786B CN 104362786 B CN104362786 B CN 104362786B CN 201410685002 A CN201410685002 A CN 201410685002A CN 104362786 B CN104362786 B CN 104362786B
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Abstract
Embedding winding insulation structure and its insulating method are dissipated the present invention relates to a kind of 200 grades of low voltage motors, it is mainly characterized by：By to the stator winding insulation in low voltage motor, winding groove portion, it is alternate, layer insulation and slot for winding wedge portion position use insulation system of the invention, stator winding integrally dries insulation system using the leaching of H9161 unsaturated polyester-imides insulated paint, and soak the insulating method dried in motor stator winding structure by by H9161 unsaturated polyester-imides insulated paint, make low voltage motor dissipate embedding winding and to reach not only insulate but also have good conduction heat transfer performance, identified through thermal aging test, realize desired value of the humidity index higher than 200 that low voltage motor dissipates embedding winding temperature classification, meet the long-term stability and reliability for using normal under 200 DEG C of hot environments of low voltage motor, extend the service life of low voltage motor.
Description
Technical field
The invention belongs to technical field of motors, it is exhausted that specifically a kind of temperature classification is that 200 grades of low voltage motor dissipates embedding winding
Edge structure and its insulating method.
Background technology
Low-voltage high-power motor stator winding in operation, because for a long time be subject to mechanical oscillation, electromagnetic force, temperature, environment because
, there is the failures such as the broken pressure of turn-to-turn often in the influence of element, so the quality of machine winding manufacture, be directly connected to motor operation and
Service life.Machine winding form is divided into shaping winding and dissipates embedding winding, and temperature classification is that 200 class B insulation structures are usual in industry
It is shaping winding, there is no scattered embedding winding insulation structure to reach the level that temperature classification is 200 grades at present.Dissipate embedding winding general
It is the winding configuration that below 1140V motors are used, and the rated voltage of mine motor is generally powered from 3300v, due to some
Underground coal mine motor and underground fan etc. are limited by locus, to ensure the mine motor and ground of rated voltage 3300v
The performance of iron winds machine, it is necessary to which, using scattered embedding winding construction, and existing scattered embedded winding coils, usually used is polyimide varnish
Envelope curve, its heat endurance is poor, and temperature classification does not reach 200 grades of country and professional standard regulation.Because motor is long-term 200
DEG C or so high-temperature severe environment in operate, in thermal ageing test, using the insulation system of polyimide enameled wire the 6th
Substantially all damage during the cycle, humidity index can only achieve 192, after opening and inspecting find electromagnetic wire insulating barrier all it is aging fall, absolutely
Edge fails.Therefore, low voltage motor of the prior art dissipates embedding winding, and its temperature classification is difficult to reach 200 grades of levels, service life
Short, functional reliability is poor.
The content of the invention
It is an object of the invention to provide a kind of temperature classification that can improve low voltage motor, but can improve dissipate embedding winding use
Life-span, moreover it is possible to meet motor and normally used under 200 DEG C of hot environments for a long time, and 200 grades of strong low voltage motors of functional reliability
Dissipate embedding winding insulation structure and its insulating method.
Realize that the purpose of the present invention is adopted the technical scheme that：The insulation system includes：Stator in low voltage motor around
Group insulation, the insulation of winding groove portion, winding phase insulation, winding layer insulation and the insulation of winding slot wedge, wherein, stator winding coil
Electromagnetic wire using MYFE-4 proof voltages 4KV bilayer the laminated film of polyimides-fluorine 46 around copper round wire, the groove of stator winding
Portion's place mat has Kapton aromatic polyamide paper C level composite material insulating barrier and the 6050 polyamides Asia consistent with flute profile
The insulating barrier of amine film, the alternate of stator winding, interlayer have padded one layer respectively or two layers of polyimide film Nomex is fine
Dimension paper C level composite materials insulating barrier, the slot wedge of stator winding are polyimide resin based composites laminate insulation system.
The stator winding is that insulation system is dried in the leaching of H9161 unsaturated polyester-imides insulated paint.
It is to carry out according to the following steps that 200 grades of low voltage motors of the invention dissipate embedding winding insulation method：
（1）The coiling of stator winding coil：The electromagnetic wire of coil is double using MYFE-4 proof voltages 4KV
Strata acid imide-laminated film of fluorine 46 around copper round wire, and according to GB/T 17948.1-2000 standards requirement around
It is made stator winding coil；
（2）Branch's insulation processing：First the groove portion to stator winding carries out insulation processing, the first place mat in groove
One strata imide membrane aromatic polyamide paper C level composite materials, then one layer of 6050 Kapton of place mat,
And by step（1）Enter groove portion under the stator winding coil of coiling, interlayer then respectively in winding, the alternate pad of winding overhang
One layer or two layers of polyimide film aromatic polyamide paper C level composite materials are insulated, and the slot wedge of winding is sub- using polyamides
Polyimide resin based composites laminate insulate, and after each portion of stator winding is insulated, treats follow-up integral insulation treatment；
（3）Integral insulation treatment：By step（2）Stator winding after insulation processing carries out overall leaching baking treatment, leaching baking time
Number is 2 times, and leaching is dried technique and is：During stator winding to be integrally placed in impregnating autoclave → vacuumize 1000Pa → fidelity sky 30min →
To input H9161 unsaturated polyester-imides insulated paint → pressurization 0.4Mpa~0.5Mpa → pressurize 30min in impregnating autoclave → broken pressure
Drying → drying temperature is 150 in stator winding → 20~60min of drip-dry → feeding drying oven after → back paint → hang out dipping
± 5 DEG C, soaking time be that 2~3h → come out of the stove is cooled to 30~60 DEG C → stator winding that will soak after drying cooling and inserts dipping 2 times
In tank → vacuumize 1000Pa → fidelity sky 20min → to be input into impregnating autoclave H9161 unsaturated polyester-imides insulated paint → plus
Pressure 0.4Mpa~0.5Mpa → pressurize 30min → broken pressure → back paint → hang out impregnate for 2 times after stator winding → drip-dry 20~
Drying → drying temperature is after 150 ± 5 DEG C → soaking time is 5~8h → come out of the stove, that is, to be made in 60min → feeding drying oven
Temperature classification dissipates embedding winding up to 200 grades of low voltage motor.
200 grades of low voltage motors being made according to such scheme dissipate embedding winding insulation structure, and its advantage is：
（1）In the making that low voltage motor dissipates embedding winding, by coil and the groove portion of winding, alternate, layer to winding
Between and winding slot wedge use material of the present invention and insulation system, through insulating method of the invention process after, its make
Low voltage motor dissipates embedding winding to be identified by Shanghai electric equipment inspection institute thermal aging test, and the humidity index of temperature classification is higher than
200。
（2）The electromagnetic wire of winding coil sinters copper round wire and insulate using MYFE-4 bilayer polyimides-fluorine 46 laminated films
Structure, can accomplish 12 cycles still none puncture, pass through thermal aging test identification, the humidity index of temperature classification is higher than 200.
（3）Dried in motor stator winding structure by the way that H9161 unsaturated polyester-imides insulated paint is soaked, not only insulated but also had
Good conduction heat transfer performance, realizes loss of electric machine reduction, the purpose that efficiency is improved, caloric value declines, temperature rise is reduced, thus
The long-term stability and reliability for using normal under 200 DEG C of hot environments of low voltage motor is met, low voltage motor is extended
Service life.
（4）The current country is had no reliable 200 grades identified by heat ageing and dissipates embedding winding insulation structure, and this invention is filled out
Domestic blank is mended, and has all used home made materials, farthest reduced cost.
Brief description of the drawings
Fig. 1 is the structural representation of stator winding groove portion section of the present invention；
Fig. 2 is the structural representation of stator winding end of the present invention.
Specific embodiment
Referring to Fig. 1, Fig. 2,200 grades of low voltage motors of the invention dissipate embedding winding insulation structure to be included：Determining in low voltage motor
Sub- winding 1 insulate, winding groove portion 7 insulate, winding alternate 2 insulate, winding interlayer 5 insulate and winding slot wedge 4 insulate, wherein, it is fixed
The electromagnetic wire 3 of sub- winding coil, around copper round wire, is determined using the MYFE-4 proof voltages 4KV bilayer laminated films of polyimides-fluorine 46
The place mat of groove portion 7 of sub- winding has the Kapton aromatic polyamide paper C level composite material insulating barrier consistent with flute profile
With the insulating barrier 6 of 6050 Kaptons, stator winding 1 alternate 2, interlayer 5 is padded respectively has one layer or two-layer polyamides sub-
Amine film aromatic polyamide paper C level composite materials insulating barrier, the slot wedge 4 of stator winding 1 are polyimide resin base composite wood
Laminae insulation system.The stator winding 1 is that insulation system is dried in the leaching of H9161 unsaturated polyester-imides insulated paint.
It is to carry out according to the following steps that 200 grades of low voltage motors of the invention dissipate embedding winding insulation method：
（1）The coiling of stator winding coil：The electromagnetic wire of coil is double using MYFE-4 proof voltages 4KV
The layer laminated film of polyimide-fluorine 46 requires coiling around copper round wire according to GB/T 17948.1-2000 standards
Into stator winding coil；
（2）Branch's insulation processing：First the groove portion to stator winding carries out insulation processing, the first place mat in groove
One strata imide membrane aromatic polyamide paper C level composite materials, then one layer of 6050 Kapton of place mat,
And by step（1）Enter groove portion under the stator winding coil of coiling, interlayer then respectively in winding, the alternate pad of winding overhang
One layer or two layers of polyimide film aromatic polyamide paper C level composite materials are insulated, and the slot wedge of winding is sub- using polyamides
Polyimide resin based composites laminate insulate, and after each portion of stator winding is insulated, treats follow-up integral insulation treatment；
（3）Integral insulation treatment：By step（2）Stator winding after insulation processing carries out overall leaching baking treatment, leaching baking time
Number is 2 times, and leaching is dried technique and is：
Leaching for the first time is dried：During stator winding after branch's insulation processing is integrally placed in into impregnating autoclave → vacuumize 1000Pa
→ fidelity sky 30min → to be input into impregnating autoclave H9161 unsaturated polyester-imides insulated paint → pressurization 0.4Mpa~0.5Mpa →
After the stator winding → 20~60min of drip-dry of pressurize 30min → broken pressure → back paint → hang out after dipping → will impregnate drip-dry again
In stator winding feeding drying oven drying → drying temperature be 150 ± 5 DEG C, soaking time be cooled to 30 for 2~3h → come out of the stove~
60℃；
Second leaching is dried：Will for the first time leaching dry cooling after stator winding insert in impregnating autoclave for 2 times → vacuumize 1000Pa
→ fidelity sky 20min → to be input into impregnating autoclave H9161 unsaturated polyester-imides insulated paint → pressurization 0.4Mpa~0.5Mpa →
Pressurize 30min → broken pressure → back paint → hang out baking in stator winding → 20~60min of the drip-dry → feeding drying oven after 2 dippings
Dry → drying temperature is that to be made temperature classification low up to 200 grades after 150 ± 5 DEG C → soaking time is 5~8h → come out of the stove
Medium-voltage Motor dissipates embedding winding.
In the present invention, insulating materials used all uses home made materials, farthest reduces cost, wherein online
In the coiling of circle, the electromagnetic wire of coil is using the MYFE-4 proof voltages 4KV bilayer wrapped copper coins of laminated film of polyimides-fluorine 46
Line, is greatly improved the temperature classification of electromagnetic wire.This kind of electromagnetic wire is winding wire, and insulating barrier internal layer is two-sided laminated film
（FHF）, outermost is using one side laminated film（HF）Or FHF films, it is wrapped closely uniform, bond lapping layer through high temperature sintering
It is integrally formed.The electromagnetic wire directly can be purchased commercially.
Using Kapton aromatic polyamide paper C level composite materials and 6050 Kaptons as stator around
The groove portion insulation of group, enables winding groove portion to reach the requirement that temperature classification is 200 grades, while using the poly- virtue of Kapton
Nylon paper C level composite materials are used for stator winding phase insulation and winding layer insulation, and it is 200 to meet temperature classification
The requirement of level.Fire resistant polyimide film aromatic polyamide paper used is the C level composite materials of soft type, is by polyamides
The viscous insulating materials with aromatic polyamide paper in imines film two sides, with excellent heat resistance and good dielectric properties
And mechanical performance.The C level composite materials and 6050 Kaptons directly can be purchased commercially.
Using polyimide resin base composite wood laminate as winding slot wedge, disclosure satisfy that temperature classification is 200 grades
It is required that.Polyimide resin based composites laminate is with polyimide resin as matrix, with high-performance fiber as strengthening material
Material compacting is formed, and with excellent mechanical property, decay resistance and electrical property, its insulating properties reaches more than 200 grades.Make
The laminate sheet material of slot wedge directly can be purchased commercially.
Using H9161 unsaturated polyester-imide insulated paint, vacuum pressure leaching is carried out to stator winding and is dried, disclosure satisfy that heat-resisting
Grade is 200 grades of requirement.H9161 unsaturated polyester-imide insulated paint is by Harbin Qing Yuan electrical materials limited company
Production, the insulated paint can commercially be purchased or directly ordered to producer, and its main component is modified, high temperature resistant unsaturated polyester (UP)
Imide resin, activated monomer is styrene, good etc. with good electric property, heat resistance, chemical resistance and processing performance
Feature.
Claims (1)
1. a kind of 200 grades of low voltage motors dissipate embedding winding insulation structure, including stator winding insulation, winding groove portion in low voltage motor
Insulation, winding phase insulation, winding layer insulation and the insulation of winding slot wedge, wherein, the groove portion place mat of stator winding has and flute profile
The insulation of consistent Kapton aromatic polyamide paper C level composite materials insulating barrier and 6050 Kaptons
Layer, it is characterised in that：The electromagnetic wire of stator winding coil is using the MYFE-4 proof voltages 4KV bilayer THIN COMPOSITEs of polyimides-fluorine 46
Around copper round wire, the alternate of stator winding, interlayer have padded one layer or two layers of polyimide film aromatic polyamide fibre to film respectively
Paper C level composite material insulating barriers, the slot wedge of stator winding is polyimide resin based composites laminate insulation system, described
Stator winding is that insulation system is dried in the leaching of H9161 unsaturated polyester-imides insulated paint；200 grades of low voltage motors dissipate embedding winding insulation
The insulating method of structure is to carry out according to the following steps：
（1）The coiling of stator winding coil：The electromagnetic wire of coil is double using MYFE-4 proof voltages 4KV
Strata acid imide-laminated film of fluorine 46 is turned to around copper round wire according to the requirement of GB/T 17948.1-2000 standards
Stator winding coil；
（2）Branch's insulation processing：First the groove portion to stator winding carries out insulation processing, the first place mat in groove
One strata imide membrane aromatic polyamide paper C level composite materials, then one layer of 6050 Kapton of place mat, and will
Step（1）Enter groove portion under the stator winding coil of coiling, one layer of interlayer then respectively in winding, the alternate pad of winding overhang
Or two layers of polyimide film aromatic polyamide paper C level composite materials are insulated, the slot wedge of winding is using polyimides tree
Resin-based composite laminate insulate, and after each portion of stator winding is insulated, treats follow-up integral insulation treatment；
（3）Integral insulation treatment：By step（2）Stator winding after insulation processing carries out overall leaching baking treatment, and it is 2 that number of times is dried in leaching
Secondary, leaching is dried technique and is：During stator winding to be integrally placed in impregnating autoclave → vacuumize 1000Pa → fidelity sky 30min → to dipping
H9161 unsaturated polyester-imides insulated paint → pressurization 0.4Mpa~0.5Mpa → pressurize 30min → broken pressure → back paint is input into tank
→ hang out dipping after stator winding → 20~60min of drip-dry → feeding drying oven in drying → drying temperature be 150 ± 5 DEG C,
Soaking time be 2~3h → come out of the stove be cooled to 30~60 DEG C → stator winding that will soak after drying cooling insert in impregnating autoclave for 2 times →
Vacuumize 1000Pa → fidelity sky 20min → to being input into H9161 unsaturated polyester-imides insulated paint → pressurization in impregnating autoclave
0.4Mpa~0.5Mpa → pressurize 30min → broken pressure → back paint → hang out the stator winding → 20~60min of drip-dry after 2 dippings
Drying → drying temperature is 150 ± 5 DEG C → soaking time after 5~8h → come out of the stove, that is, to be made heat-resisting etc. in → feeding drying oven
Level dissipates embedding winding up to 200 grades of low voltage motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410685002.9A CN104362786B (en) | 2014-11-25 | 2014-11-25 | 200 grades of low voltage motors dissipate embedding winding insulation structure and its insulating method |
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|---|---|---|---|
| CN201410685002.9A CN104362786B (en) | 2014-11-25 | 2014-11-25 | 200 grades of low voltage motors dissipate embedding winding insulation structure and its insulating method |
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| CN104362786A CN104362786A (en) | 2015-02-18 |
| CN104362786B true CN104362786B (en) | 2017-07-04 |
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| CN106411073B (en) * | 2016-08-16 | 2019-02-22 | 德州恒力电机有限责任公司 | The pressing tool of stator core slot cover paper |
| CN106208572B (en) * | 2016-08-29 | 2019-03-26 | 中车株洲电机有限公司 | A kind of insulating treatment method of motor stator |
| CN107591975A (en) * | 2017-09-22 | 2018-01-16 | 卧龙电气集团股份有限公司 | The coil-inserting method and stator Double Layer Winding structure of a kind of stator bilayer pole coil |
| CN107833697A (en) * | 2017-10-20 | 2018-03-23 | 铜陵豪威富铜业有限责任公司 | 200 grades of composite film sintered flat aluminum line preparation methods of polyimides fluorine 46 |
| CN107994747A (en) * | 2017-12-19 | 2018-05-04 | 卧龙电气集团股份有限公司 | A kind of low-voltage three-phase asynchronous motor for nuclear and identification method |
| CN113809861A (en) * | 2021-08-13 | 2021-12-17 | 松下压缩机(大连)有限公司 | Insulation structure of F-level insulated motor suitable for compressor and insulation improving method thereof |
| CN113922608B (en) * | 2021-10-29 | 2023-10-20 | 沈阳方舟石油科技发展有限公司 | Polyimide glue-poured motor winding insulation structure and preparation method thereof |
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|---|---|---|---|---|
| EP1454738A3 (en) * | 1995-02-28 | 2009-03-11 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Film distinguished in corona resistant characteristic and insulated wires, coils and motors used said film for insulation material |
| CN102255412A (en) * | 2010-05-19 | 2011-11-23 | 抚顺煤矿电机制造有限责任公司 | Random winding of high voltage motor |
| CN103618396A (en) * | 2013-12-03 | 2014-03-05 | 南阳防爆集团股份有限公司 | Low-voltage efficient motor high heat conduction and insulation structure and manufacturing method thereof |
| CN204231054U (en) * | 2014-11-25 | 2015-03-25 | 南阳防爆集团股份有限公司 | 200 grades of low voltage motors fall apart embedding winding insulation structure |
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2014
- 2014-11-25 CN CN201410685002.9A patent/CN104362786B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1454738A3 (en) * | 1995-02-28 | 2009-03-11 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Film distinguished in corona resistant characteristic and insulated wires, coils and motors used said film for insulation material |
| CN102255412A (en) * | 2010-05-19 | 2011-11-23 | 抚顺煤矿电机制造有限责任公司 | Random winding of high voltage motor |
| CN103618396A (en) * | 2013-12-03 | 2014-03-05 | 南阳防爆集团股份有限公司 | Low-voltage efficient motor high heat conduction and insulation structure and manufacturing method thereof |
| CN204231054U (en) * | 2014-11-25 | 2015-03-25 | 南阳防爆集团股份有限公司 | 200 grades of low voltage motors fall apart embedding winding insulation structure |
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Address after: 473008 Nanyang City, Henan Province North Road, No. 22 Patentee after: WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GROUP CO., LTD. Address before: 473008 Nanyang City, Henan Province North Road, No. 22 Patentee before: Nanyang Explosion Protection Group Co., Ltd. |
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