Permanent magnetism motor with asymmetric rotor

A permanent magnet motor, asymmetric technology, applied in the direction of magnetic circuit, electric components, electrical components, etc., can solve the problem that the engineering application level of the reluctance offset permanent magnet synchronous motor is not yet mature, to reduce the amount of permanent magnets, improve ratio, the effect of improving the utilization rate

Inactive Publication Date: 2018-08-17
SOUTHEAST UNIV
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Problems solved by technology

However, the reluctance offset permanent magnet synchronous motor is not yet mature in ...

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  • Permanent magnetism motor with asymmetric rotor
  • Permanent magnetism motor with asymmetric rotor
  • Permanent magnetism motor with asymmetric rotor

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Embodiment Construction

[0021] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] An asymmetric rotor permanent magnet motor of the present invention, the motor includes a stator and a rotor with an asymmetric arrangement of internal permanent magnets, the stator is arranged outside the rotor, an air gap is provided between the stator and the rotor, and the rotor is fixed on On the rotating shaft; the stator includes a stator core and a three-phase armature winding; the stator core includes a stator yoke and stator teeth protruding from the stator yoke toward the rotor, and stator slots are formed between adjacent stator teeth; the rotor A plurality of permanent magnet unit structures are arranged on it, and the permanent magnet unit structure includes an air magnetic barrier, a first permanent magnet built in the rotor yoke, and a second permanent magnet set in the air magnetic barrier; th...

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Abstract

The invention discloses a permanent magnetism motor with an asymmetric rotor. The motor comprises a stator and the rotor which includes permanent magnets arranged in an asymmetric way, the stator is arranged outside the rotor, an air gap is arranged between the stator and the rotor, and the rotor is fixed to a rotating shaft; the stator comprises a stator core and a three-phase armature winding, the stator core comprise a stator yoke and stator teeth which extend from the stator yoke to the rotor, and stator grooves are formed between the adjacent stator teeth; the rotor is provided with multiple permanent magnetism unit structures, and each permanent magnetism unit structure comprises an air magnetic barrier, a first permanent magnet built in a rotor yoke and a second permanent magnet arranged in the air magnetic barrier; and the central axis of the permanent magnetism unit structures is a rotor radial axis R1 crossing the center of the rotating shaft, and the permanent magnetism unitstructures are divided into left and right permanent magnetism unit structures of different structures by the central axis. The second permanent magnets of the rotor are arranged in the asymmetric way to overcome the disadvantage that the utilization rate of permanent magnetic and magnetic resistance torques of a built-in motor is not high, and thus, the torque output capability of the motor is improved.

Description

technical field [0001] The invention relates to motor equipment, in particular to an asymmetrical rotor type permanent magnet motor. Background technique [0002] With the deterioration of the ecological environment and the exhaustion of global energy sources, vigorously developing the new energy automobile industry has become a key measure related to the development of the national economy. As users' demand for electric vehicles continues to increase, built-in permanent magnet synchronous motors (Permanent Magnet Synchronous Machine, PMSM) are widely used in the field of electric vehicles because of their high power density, high efficiency and better control accuracy, including Toyota Prius , Honda Insight and other models. [0003] However, the traditional built-in permanent magnet motor has a lot of permanent magnet flux leakage, and the utilization rate is not high. At the same time, due to the high price of rare earth permanent magnet materials, this is not conducive ...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K1/27H02K1/02
CPCH02K1/16H02K1/02H02K1/2766H02K2201/06
Inventor 阳辉王伟嘉林鹤云李亚
Owner SOUTHEAST UNIV
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