CN101860151A - Novel air compressor asynchronous motor - Google Patents
Novel air compressor asynchronous motor Download PDFInfo
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- CN101860151A CN101860151A CN 201010175920 CN201010175920A CN101860151A CN 101860151 A CN101860151 A CN 101860151A CN 201010175920 CN201010175920 CN 201010175920 CN 201010175920 A CN201010175920 A CN 201010175920A CN 101860151 A CN101860151 A CN 101860151A
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- cramp
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Abstract
The invention relates to a vehicle-use air compressor variable frequency asynchronous motor, in particular to a novel air compressor asynchronous motor, which solves the problems of poor use effect and short service life of the air compressor motor, caused by unreasonable internal structure design of the existing air compressor motor. The novel air compressor asynchronous motor comprises a machine seat, a stator iron core, a stator coil and a rotor, wherein the stator iron core is fastened by a stator press ring and a buckle sheet, a stop opening positioning step matched with the stator iron core is arranged on the inner surface of the machine seat, one end of the stator iron core, fastened by the stator press ring and the buckle sheet, is positioned at the stop opening positioning step, the other end of the stator iron core is welded on the machine seat, a groove used for fastening and connecting the buckle sheet is uniformly arranged on the outer end surface of the stator press ring, the buckle sheet is buckled in the groove, and the stator coil has three turns at the head part and the tail part, and is additionally sheathed with fiber glass sleeve pipes. The invention can better adapt to the special use requirements of the air compressor motor, and can meet the requirements of frequent starting, large motor overload times, small size and good heat radiation effect of the air compressor motor.
Description
Technical field
The present invention relates to locomotive air compressor machine frequency conversion asynchronous motor, be specially a kind of novel air compressor asynchronous motor.
Background technology
Existing locomotive air compressor machine frequency conversion asynchronous motor, owing to be subjected to the restriction of air compressor motor application, the structure of air compressor motor and work characteristics have special requirement: promptly the electric motor starting performance of air compressor machine is wanted to satisfy the requirement of Fraquent start, and requires that the motor overload multiple is big, volume is little, good heat dissipation.
At present, the air compressor machine frequency conversion asynchronous motor of the locomotive in the use generally adopts stator core to axially fasten by cramp and the firm after heat of spot welding is placed on the support, and stator core and machine seat spot welding are fixed; Stator core is to locate postpone by frock, stator core and support is welded to fix then, rather than locatees according to the support seam.Existing locomotive, can not satisfy the special instructions for use of air compressor machine and exists following major defect because its internal structure of motor is unreasonable with air compressor motor:
1, stator core does not have positioning spigot, cause that relative position can't accurately guarantee between stator core and the support, and in the motor assembling process, cause the stator core center not overlap easily with the rotor core center, thereby cause motor to produce shortcomings such as electric and magnetic oscillation, noise of motor and electromagnetic noise are big, thereby had a strong impact on the useful life of motor.
2, according to behind the practical operation use motor, insulated part is very easily aging on first and last three circles of the diffusing winding (stator coil) of discovery motor internal, thereby has a strong impact on the useful life of motor.This is because during machine operation, the winding of inverter power supply motor, when operation, to bear voltage jump or the due to voltage spikes that produces owing to element switch, in motor windings, cause very big electric potential gradient, act on first and last three circles of diffusing winding (stator coil), can make the ageing of insulation at these positions accelerate to influence the motor bulk life time like this.
3, existing air compressor motor bearing does not adopt sealed bearing, need increase the maintenance cost of motor to motor intermittent oiling fat.
4, be provided with baffle plate between existing air compressor motor rotor and the rotating shaft, promptly increased the cost of manufacture of motor, influenced accurate location again rotor.
Summary of the invention
The present invention is unreasonable with the design of air compressor machine frequency conversion asynchronous motor internal structure in order to solve existing locomotive, the problem that the air compressor motor result of use that causes is not good and the life-span is not long, be specifically related to the problem that the electric machine stator iron location is inaccurate, first and last three circles of stator coil are very easily aging, a kind of novel air compressor asynchronous motor is provided.
The present invention is concrete to adopt following technical scheme to realize: comprise support, by stator pressing ring and fastening stator core, stator coil and the rotor of cramp, the support inner surface is provided with the seam positioning step that matches with stator core, end with the fastening stator core of stator pressing ring and cramp is positioned the seam positioning step, and the other end is welded on the support; Offer equably on the described stator pressing ring outer face and be used for the groove that cramp is fastenedly connected, cramp buckles in the groove; Stator coil first and last three circles add cover glass fiber sleeve pipe.Motor adopts sealed bearing.
Be provided with the seam positioning step in base inner, carry out the axial location of stator core, prevent owing to misaligning of stator core and rotor core produces electromagnetic shock, electromagnetic noise; Be used for having on the stator pressing ring of fastening stator core the groove of five equilibrium, be used for connecting, make that it highly is lower than the stator pressing ring end face after the fastening stator core of cramp, thereby stator core and support seam are closely cooperated with cramp; Because voltage is low, electric current is big, can act on stator coil first and last three circles and cause the aging in advance even circle weak point of coil covering, so need add the reinforcement of insulating of cover glass fiber sleeve pipe to coil first and last three circles, avoid motor frequency converter when starting that coil is lacked owing to harmonic current causes circle greatly, and efficiently solve the very easily aging problem of coil; Simultaneously, motor adopts non-maintaining sealed bearing, can reduce the maintenance cost of motor.
Simultaneously, can remove the baffle plate on the cast-aluminum rotor axle in the motor, directly use shaft shoulder location, can save the design of electrical motor cost, can correctly locate rotor punching effectively again.
Compared with prior art, novel air compressor asynchronous motor provided by the invention has following beneficial effect, that is:
1, by to offering groove on the stator pressing ring, the stator core center and the rotor core that make are good to neutrality, produce electric and magnetic oscillation, noise of motor and electromagnetic noise thereby reduced motor.
2,, effectively avoided the aging and circle weak point of motor coil by reinforcement that stator coil first and last three circles are insulated.
3, the present invention adopts sealed bearing, has saved the maintenance cost of motor.
4, the motor rotor directly uses shaft shoulder location, has removed the baffle plate between rotor and the rotating shaft, has saved the cost of manufacture of motor, simultaneously rotor is accurately located.
By transformation to internal structure of motor, can make the present invention more can adapt to the special instructions for use of air compressor motor, can satisfy the air compressor motor Fraquent start, the motor overload multiple is big, volume is little, the requirement of good heat dissipation.
Description of drawings
Fig. 1 is the agent structure schematic diagram of novel air compressor asynchronous motor of the present invention;
Fig. 2 is the structural representation of the stator pressing ring of novel air compressor asynchronous motor of the present invention;
Fig. 3 is the end view of Fig. 2;
The structural representation that Fig. 4 partly is connected for stator pressing ring of the present invention and cramp.
Among the figure, 1-support, 2-stator pressing ring, 3-cramp, 4-stator core, 5-stator coil, 6-groove.
Embodiment
Novel air compressor asynchronous motor, comprise support 1, by stator pressing ring 2 and cramp 3 fastening stator core 4, stator coil 5 and rotor, support 1 inner surface is provided with the seam positioning step that matches with stator core 4, end with the fastening stator core 4 of stator pressing ring 2 and cramp 3 is positioned the seam positioning step, and the other end is welded on the support 1; Offer equably on described stator pressing ring 2 outer faces and be used for the groove 6 that cramp 3 is fastenedly connected, cramp 3 buckles in the groove 6; Stator coil 5 first and last three circles add cover glass fiber sleeve pipe.Motor adopts sealed bearing.
Be provided with the seam positioning step in support 1 inside, carry out the axial location of stator core 4, prevent owing to stator core 4 and misaligning of rotor core produce electromagnetic shock, electromagnetic noise; Be used for having on the stator pressing ring 2 of fastening stator core 4 groove 6 of five equilibrium, be used for being connected with cramp 3, make cramp 3 fastening stator core 4 back cramps 3 highly be lower than stator pressing ring 2 end faces, thereby stator core 4 and support 1 seam are closely cooperated, and, make stator core 4 to match with support 1 more accurately like this and carry out the seam location because the degree of depth of groove 6 guarantees can not give prominence to stator pressing ring 2 end faces after cramp 3 buckles into; Owing to the phenomenon that voltage is low, electric current is big can occur during electric motor starting, causing producing voltage gradient acts on stator coil 5 first and last three circles and causes coil covering aging in advance even cause short circuit between circle and the circle, so need add the reinforcement of insulating of cover glass fiber sleeve pipe to coil first and last three circles, avoid motor frequency converter when starting that coil is lacked owing to harmonic current causes circle greatly, and efficiently solve the very easily aging problem of coil; Simultaneously, motor adopts non-maintaining sealed bearing, can reduce the maintenance cost of motor.
And, remove the baffle plate on the cast-aluminum rotor axle in the motor during assembling motor, directly use shaft shoulder location, can save the design of electrical motor cost, can correctly locate rotor punching effectively again.
Concrete, during the assembling motor, electric machine stator iron 4 is laminated after heat be placed in the support 1, with support seam positioning step location, stator core 4 one ends are positioned by seam on the positioning step of support 1, and the other end is welded on the support 1; Carry out rule then, carry out normal assembly technology; Then be inserted in rotor, front and back bearings lid and end cap are assembled, promptly finish the assembling of whole motor.Can drop into the use of air compressor motor, this novel air compressor asynchronous motor can satisfy special running environment of air compressor motor and requirement fully.
Claims (3)
1. novel air compressor asynchronous motor, comprise support (1), by stator pressing ring (2) and fastening stator core (4), stator coil (5) and the rotor of cramp (3), it is characterized in that: support (1) inner surface is provided with the seam positioning step that matches with stator core (4), end with the fastening stator core (4) of stator pressing ring (2) and cramp (3) is positioned the seam positioning step, and the other end is welded on the support (1); Offer equably on described stator pressing ring (2) outer face and be used for the groove (6) that cramp (3) is fastenedly connected, cramp (3) buckles in the groove (6); Stator coil (5) first and last three circles add cover glass fiber sleeve pipe.
2. novel air compressor asynchronous motor as claimed in claim 1 is characterized in that: have the groove (6) of five equilibrium on the stator pressing ring, groove (6) degree of depth makes the fastening stator core of cramp (3) (4) back cramp (3) highly be lower than stator pressing ring (2) end face.
3. novel air compressor asynchronous motor as claimed in claim 1 or 2 is characterized in that: rotor directly uses shaft shoulder location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101759209A CN101860151B (en) | 2010-05-14 | 2010-05-14 | Novel air compressor asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101759209A CN101860151B (en) | 2010-05-14 | 2010-05-14 | Novel air compressor asynchronous motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101860151A true CN101860151A (en) | 2010-10-13 |
| CN101860151B CN101860151B (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101759209A Active CN101860151B (en) | 2010-05-14 | 2010-05-14 | Novel air compressor asynchronous motor |
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| Country | Link |
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| CN (1) | CN101860151B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102946161A (en) * | 2012-12-04 | 2013-02-27 | 南阳防爆集团股份有限公司 | Method for reducing insulation damage of motor winding and flame-proof type variable-frequency motor |
| CN103560601A (en) * | 2013-11-22 | 2014-02-05 | 永济新时速电机电器有限责任公司 | Stator core welding structure of large-sized motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2235673Y (en) * | 1995-04-21 | 1996-09-18 | 荣成电机(集团)股份有限公司 | Windings for electric motor |
| CN2884674Y (en) * | 2006-03-21 | 2007-03-28 | 广东威灵电机制造有限公司 | Series excited machine for barrel washing machine |
| CN201307787Y (en) * | 2009-03-18 | 2009-09-09 | 常州富兴机电有限公司 | Rotating shaft being matched with a rotor iron core |
| CN201422033Y (en) * | 2009-04-10 | 2010-03-10 | 上海电气先锋电机有限公司 | Electromotor heat insulation stator core |
| CN201674368U (en) * | 2010-05-14 | 2010-12-15 | 永济新时速电机电器有限责任公司 | Novel air compressor asynchronous motor |
-
2010
- 2010-05-14 CN CN2010101759209A patent/CN101860151B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2235673Y (en) * | 1995-04-21 | 1996-09-18 | 荣成电机(集团)股份有限公司 | Windings for electric motor |
| CN2884674Y (en) * | 2006-03-21 | 2007-03-28 | 广东威灵电机制造有限公司 | Series excited machine for barrel washing machine |
| CN201307787Y (en) * | 2009-03-18 | 2009-09-09 | 常州富兴机电有限公司 | Rotating shaft being matched with a rotor iron core |
| CN201422033Y (en) * | 2009-04-10 | 2010-03-10 | 上海电气先锋电机有限公司 | Electromotor heat insulation stator core |
| CN201674368U (en) * | 2010-05-14 | 2010-12-15 | 永济新时速电机电器有限责任公司 | Novel air compressor asynchronous motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102946161A (en) * | 2012-12-04 | 2013-02-27 | 南阳防爆集团股份有限公司 | Method for reducing insulation damage of motor winding and flame-proof type variable-frequency motor |
| CN103560601A (en) * | 2013-11-22 | 2014-02-05 | 永济新时速电机电器有限责任公司 | Stator core welding structure of large-sized motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101860151B (en) | 2011-12-07 |
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Address after: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044500 No. 18, motor street, Yongji, Shanxi Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |