CN204271865U - A kind of surface-built-in asynchronous starting and permanent magnet rotor - Google Patents
A kind of surface-built-in asynchronous starting and permanent magnet rotor Download PDFInfo
- Publication number
- CN204271865U CN204271865U CN201420789029.8U CN201420789029U CN204271865U CN 204271865 U CN204271865 U CN 204271865U CN 201420789029 U CN201420789029 U CN 201420789029U CN 204271865 U CN204271865 U CN 204271865U
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- China
- Prior art keywords
- rotor
- built
- permanent magnet
- asynchronous starting
- magnet rotor
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- Expired - Fee Related
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- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a kind of surface-built-in asynchronous starting and permanent magnet rotor, comprise rotor core (6) and be arranged on the rotating shaft (8) in rotor core (6), described rotor core (6) surface mount has surface permanent magnetic body (3), the inside of described rotor core offers the V-type groove (9) running through both ends, interior permanent magnets (7) is placed with in described V-type groove (9), one between the outer surface of described rotor core (6) and V-type groove (9) circumferentially offers rotor, be provided with in described rotor and start sliver (4).The utility model provides a kind of surface-built-in asynchronous starting and permanent magnet rotor making surface-built-in type permanent-magnet rotor synchronous machine possess asynchronous starting ability.
Description
Technical field
The utility model relates to magneto technical field, particularly a kind of surface-built-in asynchronous starting and permanent magnet rotor.
Background technology
Magneto can be divided into speed governing permagnetic synchronous motor and line-start permanent magnetic synchronous motor according to or without asynchronous starting ability.Speed governing permagnetic synchronous motor is used for the occasion of inverter supply, and line-start permanent magnetic synchronous motor can realize asynchronous starting, without the need to starting equipment.At present mainly the motor of built-in rotor magnetic structure possesses asynchronous starting ability, but independent built-in type permanent-magnet rotor needs a large amount of every magnetic bridge, and rotor mechanical intensity is low, and independent surface permanent magnetic rotor leakage is comparatively large, and power density is not high yet; Existing surface-built-in rotor magnetic structure exactly can overcome these defects above, the advantage of surface-built-in type permanent-magnet rotor is the mechanical strength that the magneto of this rotor structure enhances rotor, reduce leakage field, save every magnetic bridge, improve the power density of motor, improve the varying frequency starting of magneto, braking and runnability.
But current surface-built-in type permanent-magnet rotor does not possess the ability of asynchronous starting, adopt based on this utility model and slot between rotor core outer surface and V-type groove, install in rotor and start sliver, start sliver end ring of burn-oning at two ends and carry out short circuit, stator rotating magnetic field and starting sliver interact and produce asynchronous starting torque, make a kind of surface-built-in type permanent-magnet rotor synchronous machine possess asynchronous starting ability.
Summary of the invention
The purpose of this utility model is that overcoming above-mentioned deficiency of the prior art provides a kind of surface-built-in asynchronous starting and permanent magnet rotor making surface-built-in type permanent-magnet rotor synchronous machine possess asynchronous starting ability.
The technical solution of the utility model is achieved in that a kind of surface-built-in asynchronous starting and permanent magnet rotor, comprise rotor core and be arranged on the rotating shaft in rotor core, described rotor core surface mount has surface permanent magnetic body, the inside of described rotor core offers the V-type groove running through both ends, interior permanent magnets is placed with in described V-type groove, one between the outer surface of described rotor core and V-type groove circumferentially offers rotor, is provided with starting sliver in described rotor.
Described starting sliver is along the circumferential direction uniformly distributed between rotor core outer surface and V-type groove, and described starting sliver carries out short circuit at its end end ring, forms a short-circuited winding closed voluntarily.
The groove number of rotor adopts nearly slot fit, and the grooved type of described rotor is circular recess.
The scope of the sectional area of described rotor is 85 ~ 115mm
2.
A kind of surface-built-in asynchronous starting and permanent magnet rotor synchronous machine, this synchronous machine comprises described surface-built-in asynchronous starting and permanent magnet rotor, stator core and stator winding.
The good effect that the technical solution of the utility model produces is as follows: the surface that the utility model provides-built-in asynchronous starting and permanent magnet rotor is combined surface-built-in type permanent-magnet rotor and cage type asynchronous starting rotor, make surface-built-in type permanent-magnet rotor synchronous machine realize asynchronous starting, in rotor core without winding, maintenance cost is low, long service life, starting torque are large, overload capacity is strong, structure is simple and economical reliable; Need the sectional area adjusting rotor at 85 ~ 115mm according to startup ability
2between change, at 85 ~ 115mm
2in scope, start sliver sectional area and change, the resistance of its rotor resistance also changes, and the resistance of rotor resistance is relevant with its startup ability, and resistance larger startup ability is stronger, therefore can adjust the sectional area of rotor as required, can change the starting capability of motor.
Described surface-built-in asynchronous starting and permanent magnet rotor engagement stator core and stator winding are just combined into surface-built-in type permanent-magnet rotor synchronous machine that possesses asynchronous starting ability, achieve the asynchronous starting ability of motor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model surface-built-in asynchronous starting and permanent magnet rotor.
Fig. 2 is the structural representation of the utility model surface-built-in asynchronous starting and permanent magnet rotor synchronous machine.
Be labeled as in figure: 1. stator core, 2. stator winding, 3. surface permanent magnetic body, 4. start sliver, 5. end ring, 6. rotor core, 7. interior permanent magnets, 8. rotating shaft, 9.V type groove.
Embodiment
Embodiment one
A kind of surface-built-in asynchronous starting and permanent magnet rotor, as shown in Figure 1, comprise rotor core (6) and be arranged on the rotating shaft (8) in rotor core (6), described rotor core (6) surface mount has four surface permanent magnetic bodies (3), the inside of described rotor core (6) offers the V-type groove (9) that four run through both ends, interior permanent magnets (7) is placed with in described V-type groove (9), one between the outer surface of described rotor core (6) and V-type groove (9) circumferentially offers rotor, be provided with in described rotor and start sliver (4).Described starting sliver (4) is along the circumferential direction uniformly distributed between rotor core (6) outer surface and V-type groove (9), described starting sliver (4) carries out short circuit at its end end ring (5), forms a short-circuited winding closed voluntarily.The groove number of described rotor adopts nearly slot fit, so-called nearly slot fit is that stator and rotor groove number is close, and rotor number is slightly less than number of stator slots, this is the most widely used a kind of stator and rotor groove number fit system of current squirrel cage induction motors, mainly in order to reduce supplementary load loss; The grooved type of described rotor is circular recess.
Need the sectional area adjusting rotor at 85 ~ 115mm according to startup ability
2between change, at 85 ~ 115mm
2in scope, start sliver sectional area and change, the resistance of its rotor resistance also changes, and the resistance of rotor resistance is relevant with its startup ability, and resistance larger startup ability is stronger, therefore can adjust the sectional area of rotor as required, can change the starting capability of motor.
Described surface-built-in asynchronous starting and permanent magnet rotor can be thought and to be combined by surface-built-in permanent magnet rotor structure and cage type asynchronous starting rotor structure and to develop, and described surface permanent magnetic body (3) and interior permanent magnets (7) form cascaded structure on magnetic circuit.
Embodiment two
A kind of surface-built-in asynchronous starting and permanent magnet rotor synchronous machine, as shown in Figure 2, this synchronous machine comprises described surface-built-in asynchronous starting and permanent magnet rotor, stator core (1) and stator winding (2).Stator winding (2) is embedded in the groove of stator core (1) according to certain coiling form, and surface-built-in asynchronous starting and permanent magnet rotor can realize asynchronous starting under the effect of stator field.Described surface-built-in asynchronous starting and permanent magnet rotor is the surface described in embodiment one-built-in asynchronous starting and permanent magnet rotor, does not repeat them here.
The rotating magnetic field that described starting sliver (4) and stator winding (2) produce interacts and produces asynchronous starting torque, motor is made to possess the ability of asynchronous starting, the sectional area of described rotor can adjust as required, and described New-type asynchronous starting and permanent magnet rotor coordinates stator core (1) and stator winding (2) just can combine surface-built-in type permanent-magnet rotor synchronous machine that possesses asynchronous starting ability.
Claims (5)
1. surface-built-in asynchronous starting and permanent magnet rotor, comprise rotor core (6) and be arranged on the rotating shaft (8) in rotor core (6), it is characterized in that: described rotor core (6) surface mount has surface permanent magnetic body (3), the inside of described rotor core offers the V-type groove (9) running through both ends, interior permanent magnets (7) is placed with in described V-type groove (9), one between the outer surface of described rotor core (6) and V-type groove (9) circumferentially offers rotor, be provided with in described rotor and start sliver (4).
2. surface according to claim 1-built-in asynchronous starting and permanent magnet rotor, it is characterized in that: described starting sliver (4) is along the circumferential direction uniformly distributed between rotor core (6) outer surface and V-type groove (9), described starting sliver (4) carries out short circuit at its end end ring (5), forms a short-circuited winding closed voluntarily.
3. surface according to claim 1-built-in asynchronous starting and permanent magnet rotor, is characterized in that: the groove number of rotor adopts nearly slot fit, and the grooved type of described rotor is circular recess.
4. surface according to claim 1-built-in asynchronous starting and permanent magnet rotor, is characterized in that: the scope of the sectional area of described rotor is 85 ~ 115mm
2.
5. utilize the surface of the surface described in claim 1-built-in asynchronous starting and permanent magnet rotor-built-in asynchronous starting and permanent magnet rotor synchronous machine, it is characterized in that: this synchronous machine comprises described surface-built-in asynchronous starting and permanent magnet rotor, stator core (1) and stator winding (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789029.8U CN204271865U (en) | 2014-12-15 | 2014-12-15 | A kind of surface-built-in asynchronous starting and permanent magnet rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789029.8U CN204271865U (en) | 2014-12-15 | 2014-12-15 | A kind of surface-built-in asynchronous starting and permanent magnet rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204271865U true CN204271865U (en) | 2015-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420789029.8U Expired - Fee Related CN204271865U (en) | 2014-12-15 | 2014-12-15 | A kind of surface-built-in asynchronous starting and permanent magnet rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204271865U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453504A (en) * | 2017-07-26 | 2017-12-08 | 北京交通大学 | A kind of permagnetic synchronous motor cage-type rotor with composite radiating structure |
| CN110601486A (en) * | 2019-11-01 | 2019-12-20 | 哈尔滨理工大学 | Built-in permanent magnet synchronous motor structure with efficient speed expansion |
-
2014
- 2014-12-15 CN CN201420789029.8U patent/CN204271865U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453504A (en) * | 2017-07-26 | 2017-12-08 | 北京交通大学 | A kind of permagnetic synchronous motor cage-type rotor with composite radiating structure |
| CN110601486A (en) * | 2019-11-01 | 2019-12-20 | 哈尔滨理工大学 | Built-in permanent magnet synchronous motor structure with efficient speed expansion |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20171215 |