CN201156694Y - Asynchronously starting permanent magnet synchronous motor having special slot rotor - Google Patents
Asynchronously starting permanent magnet synchronous motor having special slot rotor Download PDFInfo
- Publication number
- CN201156694Y CN201156694Y CNU2008200554977U CN200820055497U CN201156694Y CN 201156694 Y CN201156694 Y CN 201156694Y CN U2008200554977 U CNU2008200554977 U CN U2008200554977U CN 200820055497 U CN200820055497 U CN 200820055497U CN 201156694 Y CN201156694 Y CN 201156694Y
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- permanent magnet
- motor
- magnet synchronous
- synchronous motor
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Abstract
The utility model relates to an asynchronous starting permanent magnet synchronous motor which has a deformed slot structure. The motor comprises a stator and a rotor and is characterized in that the main structure of the motor is as follows: a deformed slot combination is used as a rotor starting winding under the premise of arranging a proper number of permanent magnets; a rotor slot at the top part of a permanent magnet slot adopts a low and broad slot shape. The deformed slot adopted by the rotor adopts a high and narrow slot shape in the middle of a pole to ensure that the area of each slots of the rotor is equal. After the rotor with deformed slots is used, the asynchronous starting permanent magnet synchronous motor of a deformed slot structure can simultaneously start and pull-in a torque, thereby improving the comprehensive starting performance of the motor. The asynchronous starting permanent magnet synchronous motor which has a deformed slot structure has the advantages of high efficiency, low temperature rising, small noise, and reliable running; besides, the asynchronous starting permanent magnet synchronous motor of a deformed slot structure is worth popularizing and has a certain economic benefit.
Description
Technical field
The utility model relates to a kind of permanent magnet motor, specially refers to the asynchronous starting permanent magnet synchronous motor that rotor adopts special-shaped groove structure.
Background technology
Asynchronous starting permanent magnet synchronous motor is a kind of permanent magnet synchronous motor with self-starting ability, has the characteristics of induction motor and electric excitation synchronous motor concurrently.
The asynchronous torque that asynchronous starting permanent magnet synchronous motor relies on stator rotating magnetic field and cage rotor to interact and produces realizes starting.
And when normal operation, rotor operation is at synchronous speed.Because self-starting permasyn motor has advantages such as simple in structure, stable, that energy index is high, energy-saving effect is remarkable, is widely used at present in the industries such as oil, weaving.
But asynchronous starting permanent magnet synchronous motor has been owing to laid permanent magnet at limited rotor space, so, cause the rotor starting cage little, rotor resistance is big, and pull-in torque and starting torque usually can not be taken into account, and cause the motor starting difficulty.
Summary of the invention
The purpose of this utility model is to provide a kind of rotor to adopt the asynchronous starting permanent magnet synchronous motor of special-shaped groove structure, this motor overcomes the defective of existing self-starting permasyn motor starting performance difference, and the novel self-starting permasyn motor that starting torque and pull-in torque are improved simultaneously, this motor except that have starting performance well, also have characteristics such as high efficiency, High Power Factor and high power density and overload capacity are strong.
For achieving the above object, the technical solution of the utility model is: the primary structure of motor is, lay under the prerequisite of suitable quantity permanent magnet in assurance, the rotor starting winding is selected special-shaped groove Combination Design for use, the rotor at permanent magnet trough top adopts low and wide flute profile, adopt high in the middle of extremely and narrow flute profile guarantees that simultaneously each groove area of rotor equates at one.
The beneficial effects of the utility model: after using special-shaped groove rotor, can take into account starting torque and pull-in torque simultaneously, the synthesis starting performance of motor is improved, the efficient height, temperature rise is low, noise is little, reliable, be worth of widely use, have certain economic benefits.
Description of drawings:
Fig. 1 is an asynchronous starting permanent magnet synchronous motor rotor punching schematic diagram of the present utility model;
Fig. 2 is an asynchronous starting permanent magnet synchronous motor abnormity groove schematic diagram of the present utility model.
Embodiment
With reference to Fig. 1, this is an asynchronous starting permanent magnet synchronous motor rotor punching schematic diagram of the present utility model.
As shown in the figure, rotor punching adopts special-shaped groove, makes full use of the influence of motor starting procedure kelvin effect to rotor parameter, increases rotor resistance, reduces rotor leakage reactance, has improved the asynchronous starting permanent magnet synchronous motor starting performance.
The primary structure of motor is, lay under the prerequisite of suitable quantity permanent magnet in assurance, the rotor starting winding is selected special-shaped groove Combination Design for use, and the rotor at permanent magnet trough top adopts low and wide flute profile, adopt high in the middle of extremely and narrow flute profile guarantees that simultaneously each groove area of rotor equates at one.
Rotor adopts special-shaped groove, makes full use of the influence of motor starting procedure kelvin effect to rotor parameter, increases rotor resistance, reduces rotor leakage reactance, improves starting performance.When starting, because the frequency of rotor winding is higher, the kelvin effect of deep trouth is obvious, and it is more to cause that like this rotor resistance increases, thereby the starting torque of motor is improved, and starting current reduces simultaneously.At motor operating speed during near synchronous speed, because the frequency in the rotor winding is lower, the kelvin effect of deep trouth can be disregarded, this moment, the resistance and the shallow slot winding of deep trouth winding were basic identical, the motor pull-in torque also is guaranteed, so, improved the synthesis starting performance of motor effectively.
In the selection of rotor slot shape, for the starting current and the increase starting torque that further reduce motor, the elite convex slot of selecting has suppressed the starting current of motor effectively as rotor slot shape.In order to reach the purpose of energy-saving consumption-reducing, motor uses Nd-Fe-Bo permanent magnet material, when motor when synchronizing speed is normally moved, the aluminium consumption in the rotor can be ignored, thereby has reduced the loss of motor.
In order to reduce supplementary load loss, the motor stator winding adopts star connection.
Though the utility model is described with reference to the above embodiments; but those of ordinary skill in the art; will be appreciated that above embodiment is used for illustrating the utility model; should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense; so be not that conduct is to qualification of the present utility model; as long as in connotation scope of the present utility model, to the variation of above-described embodiment, the protection range that distortion all will fall into the utility model claim.
Claims (3)
1, a kind of asynchronous starting permanent magnet synchronous motor of special-shaped groove structure, it mainly is motor rotor construction, it is characterized in that: lay under the prerequisite of suitable quantity permanent magnet in assurance, the rotor starting winding is selected special-shaped groove combination for use, and the rotor at permanent magnet trough top adopts low and wide flute profile.
2, asynchronous starting permanent magnet synchronous motor as claimed in claim 1 is characterized in that: described rotor adopts special-shaped groove, adopts high in the middle of extremely and narrow rotor slot shape guarantees that each groove area of rotor equates at one.
3, asynchronous starting permanent magnet synchronous motor as claimed in claim 1 is characterized in that: for suppressing the starting current of motor effectively, rotor slot shape adopts convex slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200554977U CN201156694Y (en) | 2008-02-15 | 2008-02-15 | Asynchronously starting permanent magnet synchronous motor having special slot rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200554977U CN201156694Y (en) | 2008-02-15 | 2008-02-15 | Asynchronously starting permanent magnet synchronous motor having special slot rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201156694Y true CN201156694Y (en) | 2008-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200554977U Expired - Lifetime CN201156694Y (en) | 2008-02-15 | 2008-02-15 | Asynchronously starting permanent magnet synchronous motor having special slot rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201156694Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166343A (en) * | 2011-12-09 | 2013-06-19 | 安徽明腾永磁机电设备有限公司 | Rotor sheet and rotor for permanent magnet motor |
| CN103208869A (en) * | 2012-12-17 | 2013-07-17 | 江苏大中电机股份有限公司 | Stator and rotor slots for three-phase motor |
| CN110247526A (en) * | 2019-04-25 | 2019-09-17 | 上海电机***节能工程技术研究中心有限公司 | A kind of low harmony wave synchronous magnetic resistance motor rotor Core Design method |
-
2008
- 2008-02-15 CN CNU2008200554977U patent/CN201156694Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166343A (en) * | 2011-12-09 | 2013-06-19 | 安徽明腾永磁机电设备有限公司 | Rotor sheet and rotor for permanent magnet motor |
| CN103166343B (en) * | 2011-12-09 | 2015-12-16 | 安徽明腾永磁机电设备有限公司 | For rotor punching and the rotor of permanent magnet motor |
| CN103208869A (en) * | 2012-12-17 | 2013-07-17 | 江苏大中电机股份有限公司 | Stator and rotor slots for three-phase motor |
| CN110247526A (en) * | 2019-04-25 | 2019-09-17 | 上海电机***节能工程技术研究中心有限公司 | A kind of low harmony wave synchronous magnetic resistance motor rotor Core Design method |
| CN110247526B (en) * | 2019-04-25 | 2020-12-22 | 上海电机***节能工程技术研究中心有限公司 | Design method for rotor core of low-harmonic synchronous reluctance motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100823 Address after: 200063 No. 505, Wuning Road, Shanghai Co-patentee after: Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd. Patentee after: Shanghai Seari Motor Technology Co., Ltd. Co-patentee after: Shanghai Motor System Energy Saving Engineering Technology Research Center Co., Ltd. Address before: 200063 No. 505, Wuning Road, Shanghai Co-patentee before: Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd. Patentee before: Shanghai Seari Motor Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081126 |