CN203850994U - Rare earth permanent magnet synchronous motor - Google Patents
Rare earth permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN203850994U CN203850994U CN201420237660.7U CN201420237660U CN203850994U CN 203850994 U CN203850994 U CN 203850994U CN 201420237660 U CN201420237660 U CN 201420237660U CN 203850994 U CN203850994 U CN 203850994U
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- China
- Prior art keywords
- rotor
- magnetic pole
- rare earth
- motor
- arc
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model discloses a rare earth permanent magnet synchronous motor which comprises a stator and a rotor magnetic pole structure. The rotor magnetic pole structure comprises a number of magnetic poles and a rotor iron core. Each magnetic pole is in an integral structure and is made of rare earth neodymium iron boron alloy. A groove is arranged on the rotor iron core. A mouse cage type conductor structure is arranged in the groove. Each rotor magnetic pole is made of an arc-shaped rare earth alloy magnet. The arc radian deviates to the axial direction of the motor. The polarities of adjacent magnetic poles are opposite. Each arc-shaped rare earth alloy magnet is arranged in the rotor iron core. Air gaps are arranged between the mouse cage type conductor structure and the rotor magnetic poles. By adopting the technical scheme, the magnetic density of the motor is high; the power density is large and high; and correspondingly, the volume weight per unit power of a generator is reduced.
Description
Technical field
The utility model relates to a kind of permanent magnet motor, particularly a kind of rare-earth permanent-magnet synchronous motor.
Background technology
Current permanent-magnet motor rotor design is unreasonable, and power density is lower, and structure is not compact, often causes motor body volume larger, be not suitable for being applied to special field, and such as electric automobile, the fields such as motor peculiar to vessel.Progress along with rare earth material, adopt novel rare earth material as rotor material, to become the emphasis of design of electrical motor, this new material can effectively be avoided the generation of foregoing problems, but how to adopt the structure of optimization, bring into play to greatest extent the effect of rare earth material, become the problem of instantly studying and producing.
Utility model content
Goal of the invention of the present utility model is the novel rare-earth permanent magnet motor that a kind of power density of design is high, lightweight, efficiency is high, and its concrete technical scheme is:
A kind of rare-earth permanent-magnet synchronous motor, comprise stator and rotor magnetic pole structure, rotor magnetic pole structure has a plurality of magnetic poles and rotor core, magnetic pole is overall structure, adopt rare-earth Nd-Fe-B alloy, on rotor core, there is groove, squirrel-cage conductor structure is installed on groove, each rotor magnetic pole adopts circular arc rare earth alloy magnet, circular arc radian deflection motor shaft to, adjacent each pole polarity is contrary, and arc rare earth alloy magnet is located at rotor core inside, between squirrel-cage conductor structure and rotor magnetic pole, has air gap.
Adopt technique scheme, the magnetic density of motor is high, power density is large, and power density is high, and the volume weight of the unit power of corresponding generator has also diminished.
Accompanying drawing explanation
Fig. 1 rare-earth permanent-magnet synchronous motor schematic diagram.
Wherein, 11-magnetic pole; 12-rotor core; 13-stator; 14-air gap.
Embodiment
The embodiment setting forth below represents and allows those skilled in the art to put into practice necessary information of the present utility model, and illustrates and put into practice best mode of the present utility model.Once read with reference to the accompanying drawings following description, those skilled in the art just will understand design of the present utility model and will recognize the application of these designs of not illustrating especially herein.Should be appreciated that these designs and application fall into the scope of disclosure and the accompanying claims book.
With reference to a kind of rare-earth permanent-magnet synchronous motor shown in accompanying drawing 1, comprise stator 13 and rotor magnetic pole structure, rotor magnetic pole structure has a plurality of magnetic poles 11 and rotor core 12, magnetic pole 11 is overall structure, adopt rare-earth Nd-Fe-B alloy, on rotor core 12, there is groove, squirrel-cage conductor structure is installed on groove, each rotor magnetic pole 11 adopts circular arc rare earth alloy magnet, circular arc radian deflection motor shaft to, adjacent each magnetic pole 11 polarity are contrary, arc rare earth alloy magnet is located at rotor core 12 inside, between squirrel-cage conductor structure and rotor magnetic pole 11, there is air gap 14.Because neodymium iron boron has good permanent magnetism, add that cost is lower, China is rich in mineral resources, and the design of this motor has great importance for the development of national economy.Adopt technique scheme, the magnetic density of motor is high, power density is large, and power density is high, and the volume weight of the unit power of corresponding generator has also diminished.
Obviously, above-described embodiment is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And these belong to apparent variation that spirit of the present utility model extended out or change still among protection range of the present utility model.
Claims (1)
1. a rare-earth permanent-magnet synchronous motor, comprise stator and rotor magnetic pole structure, rotor magnetic pole structure has a plurality of magnetic poles and rotor core, it is characterized in that magnetic pole is overall structure, adopt rare-earth Nd-Fe-B alloy, on rotor core, there is groove, squirrel-cage conductor structure is installed on groove, each rotor magnetic pole adopts circular arc rare earth alloy magnet, circular arc radian deflection motor shaft to, adjacent each pole polarity is contrary, and arc rare earth alloy magnet is located at rotor core inside, between squirrel-cage conductor structure and rotor magnetic pole, has air gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237660.7U CN203850994U (en) | 2014-05-07 | 2014-05-07 | Rare earth permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237660.7U CN203850994U (en) | 2014-05-07 | 2014-05-07 | Rare earth permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850994U true CN203850994U (en) | 2014-09-24 |
Family
ID=51563964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420237660.7U Expired - Fee Related CN203850994U (en) | 2014-05-07 | 2014-05-07 | Rare earth permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341019A (en) * | 2016-09-26 | 2017-01-18 | 威灵（芜湖）电机制造有限公司 | Self-starting motor rotor, self-starting permanent magnet motor and household appliance |
-
2014
- 2014-05-07 CN CN201420237660.7U patent/CN203850994U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341019A (en) * | 2016-09-26 | 2017-01-18 | 威灵（芜湖）电机制造有限公司 | Self-starting motor rotor, self-starting permanent magnet motor and household appliance |
| CN106341019B (en) * | 2016-09-26 | 2019-11-22 | 威灵（芜湖）电机制造有限公司 | Self-starting rotor, self-starting magneto and household electrical appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20150507 |
|
| EXPY | Termination of patent right or utility model |