CN203896157U - Stator and rotor structures of high-efficiency asynchronous starting three-phase permanent-magnetic synchronous motor - Google Patents
Stator and rotor structures of high-efficiency asynchronous starting three-phase permanent-magnetic synchronous motor Download PDFInfo
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- CN203896157U CN203896157U CN201420277927.5U CN201420277927U CN203896157U CN 203896157 U CN203896157 U CN 203896157U CN 201420277927 U CN201420277927 U CN 201420277927U CN 203896157 U CN203896157 U CN 203896157U
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses stator and rotor structures of a high-efficiency asynchronous starting three-phase permanent-magnetic synchronous motor. The stator and rotor structures comprises a stator core, a cage type rotor, stator winding installation grooves uniformly arranged in the stator core in the circumferential direction, stator windings arranged in the stator winding installation grooves, and a plurality of pairs of permanent magnet magnetic poles arranged in the cage type rotor, the stator winding installation grooves are pyriform groove structures, the cross sections of the permanent magnet magnetic poles are U-shaped structures, and the angle of U-shaped openings of the U-shaped permanent magnet magnetic poles is 60 degrees. The stator and rotor structures are advantageous in that the permanent magnet magnetic poles of the cage type rotor adopt built-in structures, and the cross sections of the permanent magnet magnetic poles are arranged as the U-shaped structures. Therefore, starting is realized by depending on asynchronous torque generated by guide bar windings of the cage type rotor during operation; after regular operation, the built-in permanent magnet magnetic poles and a rotating field generated by the stator windings interact with each other, and constant synchronous torque is generated. The work efficiency can reach 93.6% at the maximum, and the goals of high efficiency and energy saving are achieved.
Description
Technical field
The utility model relates to three-phase permanent-magnetic synchronous motors, especially relates to efficient asynchronous starting three-phase permanent-magnetic synchronous motors stator, rotor structures.
Background technology
Electric energy is more expensive clean energy resource, and electrical energy saving is one of energy-conservation important content.Motor is the widely used electric equipment of national economy every profession and trade, and use amount is large, and long operational time is energy-conservation emphasis.Compare with common threephase asynchronous, asynchronous starting three-phase permanent-magnetic synchronous motors has high efficiency, High Power Factor and the wide advantages such as economical operation scope, has significant power savings.But, how to enter an efficiency that improves asynchronous starting three-phase permanent-magnetic synchronous motors, be the problem that those skilled in the art study.
Summary of the invention
The utility model object is to provide a kind of efficient asynchronous starting three-phase permanent-magnetic synchronous motors stator, rotor structures of alternative normal asynchronous.
For achieving the above object, the utility model is taked following technical proposals:
Efficient asynchronous starting three-phase permanent-magnetic synchronous motors stator, rotor structures described in the utility model, comprises stator core and cage-type rotor; Along circumferentially equal portion, be opened in the stator winding mounting groove in described stator core and put stator winding in the inner, being arranged on the multipair permanent magnet pole in described cage-type rotor; Described stator winding mounting groove is peariform slot structure; The cross section of described permanent magnet pole is U-shaped structure, and the U-shaped opening angle of described U-shaped structure permanent magnet pole is 60 °.
The groove number of described stator winding mounting groove is 36; The sliver number of described cage-type rotor is 42; The number of pole-pairs of described permanent magnet pole is 3.
The utility model advantage is that the permanent magnet pole of cage-type rotor takes built-in structure, and permanent magnet pole cross section is set to U-shaped structure.Therefore, rely on the asynchronous torque that cage-type rotor sliver winding produces to realize starting during work, after normal operation, the rotating magnetic field being produced by interior permanent magnets magnetic pole and stator winding interacts, and produces constant synchronous torque.And stator winding mounting groove is set to peariform slot structure, effectively reduce the loss that magnetic field produces in stator core.The utility model operating efficiency reaches as high as 93.6%, and in 30%～140% nominal load internal efficiency all up to more than 92%, power factor 0.97, substitutes industrial production normal asynchronous, reaches energy-efficient object.
Accompanying drawing explanation
Fig. 1 is stator structure schematic diagram described in the utility model.
Fig. 2 is cage type rotor structure schematic diagram described in the utility model.
Embodiment
As shown in Figure 1, 2, efficient asynchronous starting three-phase permanent-magnetic synchronous motors stator, rotor structures described in the utility model, comprises stator core 1 and cage-type rotor 2; Along circumferentially equal portion, be opened in the stator winding mounting groove 3 in described stator core 1 and put stator winding 4 in the inner, being arranged on three pairs of permanent magnet poles 5 in described cage-type rotor 2; Described stator winding mounting groove 3 is peariform slot structure; The cross section of described permanent magnet pole 5 is U-shaped structure, and the U-shaped opening angle of described U-shaped structure permanent magnet pole 5 is 60 °; The groove number of described stator winding mounting groove 3 is 36; Sliver 6 quantity of described cage-type rotor 2 are 42.
Claims (2)
1. an efficient asynchronous starting three-phase permanent-magnetic synchronous motors stator, rotor structures, comprises stator core and cage-type rotor; Along circumferentially equal portion, be opened in the stator winding mounting groove in described stator core and put stator winding in the inner, being arranged on the multipair permanent magnet pole in described cage-type rotor; It is characterized in that: described stator winding mounting groove is peariform slot structure; The cross section of described permanent magnet pole is U-shaped structure, and the U-shaped opening angle of described U-shaped structure permanent magnet pole is 60 °.
2. efficient asynchronous starting three-phase permanent-magnetic synchronous motors stator, rotor structures according to claim 1, is characterized in that: the groove number of described stator winding mounting groove is 36; The sliver number of described cage-type rotor is 42; The number of pole-pairs of described permanent magnet pole is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277927.5U CN203896157U (en) | 2014-05-28 | 2014-05-28 | Stator and rotor structures of high-efficiency asynchronous starting three-phase permanent-magnetic synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277927.5U CN203896157U (en) | 2014-05-28 | 2014-05-28 | Stator and rotor structures of high-efficiency asynchronous starting three-phase permanent-magnetic synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203896157U true CN203896157U (en) | 2014-10-22 |
Family
ID=51722509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420277927.5U Active CN203896157U (en) | 2014-05-28 | 2014-05-28 | Stator and rotor structures of high-efficiency asynchronous starting three-phase permanent-magnetic synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203896157U (en) |
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2014
- 2014-05-28 CN CN201420277927.5U patent/CN203896157U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |