Switch magnetic chain motor with concealed salient pole

A technology of switching flux linkage and salient poles, which is applied in the direction of magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., can solve the problems of poor field-weakening speed regulation performance and large cogging torque, and reduce cogging Torque, low cost, and the effect of shortening the main magnetic circuit

Inactive Publication Date: 2013-09-18
SOUTHEAST UNIV
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AI Technical Summary

Problems solved by technology

[0008]Technical problem: In view of the problems of poor field-weakening speed regulation performance and large cogging torque in the traditional double salient pole switching flux linkage motor, in order to improve the performance of the switching flux linkage motor performance, the present invention provides a switch flux linkage motor with strong field-weakening speed expansion performance, reduced cogging torque, improved starting performance, and effectively reduced the implied salient pole of torque ripple during operation

Method used

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  • Switch magnetic chain motor with concealed salient pole
  • Switch magnetic chain motor with concealed salient pole
  • Switch magnetic chain motor with concealed salient pole

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Embodiment Construction

[0029] The present invention will be further specifically described below in conjunction with the accompanying drawings and embodiments.

[0030] figure 1 , figure 2 The switched flux linkage motor with implied salient poles shown in the present invention includes a stator 2 with a salient pole structure and a rotor 1 with a smooth surface with implied salient poles. The stator 2 is composed of 6 U-shaped iron cores 22 , 6 rectangular permanent magnets 21 and 6 concentrated armature coils 23 . The rectangular permanent magnet 21 is embedded in the middle of the adjacent U-shaped iron cores 22 , and the concentrated armature coil 23 is wound on the teeth of the two adjacent U-shaped iron cores 22 . Adjacent rectangular permanent magnets 21 on the stator 2 are magnetized tangentially and in opposite directions. The A, B, C three-phase windings on the stator 2 are composed of six concentrated armature coils 23 connected, and two concentrated armature coils 23 of the same pha...

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Abstract

The invention discloses a switch magnetic chain motor with a concealed salient pole. The switch magnetic chain motor comprises a stator of a salient pole structure and a rotor arranged on the inner side of the stator, 6n stator teeth positioned on the inner side are arranged on the stator, wherein n refers to a natural number larger than 0, a rectangular permanent magnet is arranged in each stator tooth, a centralized armature coil is wound in a tooth groove of each stator tooth, each rectangular permanent magnet is magnetized tangentially, two adjacent rectangular permanent magnets are opposite in magnetizing direction, and in-phase centralized armature coils are in serial or parallel connection to form a three-phase armature winding. No permanent magnet and winding is arranged on the rotor of the motor, so that the switch magnetic chain motor is simple and reliable in structure. A U-shaped magnetic insulating groove is formed in the rotor to form a non-magnetic path, and saturated magnetic bridges are formed on the U-shaped magnetic insulating groove close to the axis. Performance of the switch magnetic chain motor is improved by changing the structure of the rotor.

Description

[0001] Technical field [0002] The invention is the field of permanent magnet motor, involving a hidden switch magnetic chain motor. [0003] Background technique [0004] The switch magnetic chain motor has received more and more attention since its proposal.Its basic structure is similar to a switch magnetic resistor, but the radial permanent magnet is embedded in each stator teeth.The magnetic flux path generated by the permanent magnet changes with the change of the rotor position, making the magnetic flux of the stator winding turning chain interlacing, which is essentially different from the switch magnetic resistance motor of the permanent magnet in the stator.The magnetic flux in the switch magnetic motor motor changes with the rotor position with no polarity. Therefore, the switching magnetic resistance motor is a single polar motor.The magnetic flux in the switch magnetic chain motor changes with the position of the rotor, that is, the amplitude and polarity changes. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/24
Inventor 林明耀李念付兴贺郝立
Owner SOUTHEAST UNIV
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