CN202475064U - Rotor sheet structure of novel permanent magnet motor - Google Patents
Rotor sheet structure of novel permanent magnet motor Download PDFInfo
- Publication number
- CN202475064U CN202475064U CN2012201165775U CN201220116577U CN202475064U CN 202475064 U CN202475064 U CN 202475064U CN 2012201165775 U CN2012201165775 U CN 2012201165775U CN 201220116577 U CN201220116577 U CN 201220116577U CN 202475064 U CN202475064 U CN 202475064U
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- permanent magnet
- rotor punching
- rotor sheet
- trough
- motor
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model discloses a rotor sheet structure of a novel permanent magnet motor. The rotor sheet structure comprises a rotor sheet (1), wherein squirrel cage winding grooves (2) are uniformly distributed at the outer circumference of the rotor sheet (1); a shaft hole (7) is arranged in the center of the rotor sheet; and an even number of permanent magnet grooves (3) are uniformly distributed in the shape of a regular polygon at the inner sides of the squirrel cage winding grooves (2). By adoption of the structure, under the premise of an effective rotor sheet area, the permanent magnets can be placed as much as possible, so that the intensity of air gap main magnetic fields generated by the permanent magnets is greatly improved, the size of the motor is reduced, secondary copper loss can be lowered and the motor efficiency can be enhanced.
Description
Technical field
The rotor punching that the present invention relates to magneto is the rotor punching structure of asynchronous starting synchronous operation, belongs to technical field of motors, is particularly useful for punch press, the motor energy-saving rebuilding on the equipment such as press.
Background technology
In recent years, along with the continuous development of electron controls technology, the continuous lifting of the manufacturing process of permanent magnet, magneto has obtained good development.Present punch press; What use on the equipment such as press mainly is threephase asynchronous; Because such motor is to produce moment of torsion through the formed magnetic field of the induced current of difference in sliver of rotational frequency between stator and the rotor-exciting magnetic field and stator field; Therefore its rotating speed does not reach synchronous speed forever, and because the resistance of rotor bar can produce loss, has influenced efficiency of motor.Though all synchronous machine efficient is high, can reach synchronous speed, the self-starting difficulty.The motor rotor punching sheet of the asynchronous starting synchronous operation of adopting at present, its structural design is also unreasonable, starts difficulty, and exists the not high a series of problems of leakage field, intensity.
Summary of the invention
The object of the present invention is to provide a kind of rotor punching structure of novel permanent magnetic motor, be particularly useful for punch press, the motor energy-saving rebuilding on the equipment such as press; Adopt the asynchronous starting synchronous operation mode, motor operates in synchronous speed, and is rational in infrastructure; Can reduce the secondary copper loss, improve electric efficiency.
Above-mentioned purpose realizes through following technical scheme:
A kind of rotor punching structure of novel permanent magnetic motor; Include rotor punching (1); Rotor punching (1) excircle is evenly equipped with mouse cage slot for winding (2); There is axis hole (7) at the center of rotor punching, it is characterized in that: become regular polygon evenly to distribute several become the permanent magnet trough (3) of even number in the inboard of mouse cage slot for winding (2).
Described permanent magnet trough (3) is a 2n group permanent magnet trough group, and n is a positive integer, the permanent magnet magnet steel of homopolarity is being set in each interior on the same group permanent magnet trough, and the permanent magnet magnet steel between group and the group adopts in regular turn the S utmost point and the N utmost point to be arranged alternately.
Be provided with several little magnet isolation tanks (4) and big magnet isolation tank (5) between the described permanent magnet trough (3), between the permanent magnet trough of same polarity, be provided with little magnet isolation tank (4), between the permanent magnet trough of opposed polarity, be provided with big magnet isolation tank (5).
Be provided with a not magnetic guiding loop (6) above the described axis hole (7).
The present invention and prior art are than following positive effect is arranged:
1. under the prerequisite of effective rotor punching area, the permanent magnet of laying as much as possible greatly improves the intensity of the air gap main field that permanent magnet produces, and improves the power density of motor, dwindles the volume of motor.
2. be provided with several little magnet isolation tanks and big magnet isolation tank between the permanent magnet trough; So not only effectively play separated magnetic effect, reduced leakage field greatly, improved efficiency of motor; And can also well improve the intensity of rotor punching, be convenient to the production in enormous quantities manufacturing of motor.
3. rotor punching is gone out mouse cage slot for winding and permanent magnet trough earlier when making, and goes out little magnet isolation tank and big magnet isolation tank again.After rotor punching laminates into rotor core, can the filling epoxy resin fluid sealant in little magnet isolation tank and big magnet isolation tank etc. filler increase the intensity of rotor, for production in enormous quantities provides condition.Actual production shows: adopts the magneto of this rotor structure satisfying under the prerequisite of starting performance at present, improves punch press, and the motor efficiency 10% of equipment such as press, and can large batch ofly produce.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among Fig. 1: 1. rotor punching, 2. mouse cage slot for winding (2), 3. permanent magnet trough, 4. little magnet isolation tank, 5. big magnet isolation tank, 6. not magnetic guiding loop, 7. axis hole.
Embodiment
Below in conjunction with accompanying drawing detailed technology content of the present invention is described further.
As shown in Figure 1; A kind of rotor punching structure of novel permanent magnetic motor; Include rotor punching (1); Rotor punching (1) excircle is evenly equipped with mouse cage slot for winding (2), and there is axis hole (7) at the center of rotor punching, and become regular polygon evenly to distribute several become the permanent magnet trough (3) of even number in the inboard of mouse cage slot for winding (2).Adopt such structure, under the prerequisite of effective rotor punching area, can the permanent magnet of laying as much as possible, greatly improve the intensity of the air gap main field that permanent magnet produces, improve the power density of motor, dwindle the volume of motor.
Be provided with several little magnet isolation tanks (4) and big magnet isolation tank (5) between the described permanent magnet trough (3).Between the permanent magnet trough of same polarity, be provided with little magnet isolation tank (4), between the permanent magnet trough of opposed polarity, be provided with big magnet isolation tank (5).So not only effectively play separated magnetic effect, reduced leakage field greatly, improved efficiency of motor, and can also well improve the intensity of rotor punching, be convenient to the production in enormous quantities manufacturing of motor.
Described axis hole (7) is provided with a not magnetic guiding loop (6) at the center of rotor punching (1) on axis hole (7).Magnetic guiding loop (6) can not selected non-magnet_conductible materials such as stainless steel material for use.
Described rotor punching (1) is gone out mouse cage slot for winding (2) and permanent magnet trough (3) earlier when making, go out little magnet isolation tank (4) and big magnet isolation tank (5) again.The efficient and the quality of raising rotor punching that like this can be very big.
The width of the permanent magnet trough (3) of rotor punching of the present invention (1) is the thickness of the permanent magnet that is bumped into.Punching adopts the mode of polylith splicing to be bumped into permanent magnet after laminating into rotor core, and permanent magnet should be selected high performance permanent magnetic material for use, as selects NdFeB material for use.After rotor punching (1) laminates into rotor core, can the filling epoxy resin fluid sealant in little magnet isolation tank (4) and big magnet isolation tank (5) lining etc. filler increase the intensity of rotor.
The present invention only carries out detailed description with regard to a preferred example of the present invention, but can not be interpreted as the restriction to other modes of the present invention.Everyly on basis of the present invention, further improve and similar or identical scheme, all being regarded as is the protection range of request of the present invention.
Claims (4)
1. the rotor punching structure of a novel permanent magnetic motor; Include rotor punching (1); Rotor punching (1) excircle is evenly equipped with mouse cage slot for winding (2); There is axis hole (7) at the center of rotor punching, it is characterized in that: become regular polygon evenly to distribute several become the permanent magnet trough (3) of even number in the inboard of mouse cage slot for winding (2).
2. the rotor punching structure of a kind of novel permanent magnetic motor as claimed in claim 1; It is characterized in that: described permanent magnet trough (3) is 2n group permanent magnet trough group; N is a positive integer; The permanent magnet magnet steel of homopolarity is being set in each permanent magnet trough on the same group, and the permanent magnet magnet steel between group and the group adopts in regular turn the S utmost point and the N utmost point to be arranged alternately.
3. according to claim 1 or claim 2 a kind of rotor punching structure of novel permanent magnetic motor; It is characterized in that: be provided with several little magnet isolation tanks (4) and big magnet isolation tank (5) between the described permanent magnet trough (3); Between the permanent magnet trough of same polarity, be provided with little magnet isolation tank (4), between the permanent magnet trough of opposed polarity, be provided with big magnet isolation tank (5).
4. the rotor punching structure of a kind of novel permanent magnetic motor as claimed in claim 1 is characterized in that: be provided with a not magnetic guiding loop (6) above the described axis hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201165775U CN202475064U (en) | 2012-03-26 | 2012-03-26 | Rotor sheet structure of novel permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201165775U CN202475064U (en) | 2012-03-26 | 2012-03-26 | Rotor sheet structure of novel permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202475064U true CN202475064U (en) | 2012-10-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201165775U Expired - Lifetime CN202475064U (en) | 2012-03-26 | 2012-03-26 | Rotor sheet structure of novel permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202475064U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368292A (en) * | 2012-03-26 | 2013-10-23 | 信质电机股份有限公司 | Novel structure of rotor punching sheet of permanent magnet motor |
| CN112671133A (en) * | 2020-12-17 | 2021-04-16 | 珠海格力电器股份有限公司 | Rotor structure and motor |
-
2012
- 2012-03-26 CN CN2012201165775U patent/CN202475064U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368292A (en) * | 2012-03-26 | 2013-10-23 | 信质电机股份有限公司 | Novel structure of rotor punching sheet of permanent magnet motor |
| CN112671133A (en) * | 2020-12-17 | 2021-04-16 | 珠海格力电器股份有限公司 | Rotor structure and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 318000 Jiaojiang City, Zhejiang Province before the letter road, No. 28, Taizhou Patentee after: Long eagle letter quality Polytron Technologies Inc Address before: 318000 Jiaojiang City, Zhejiang Province before the letter road, No. 28, Taizhou Patentee before: Xingzhi Motor Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |