Switched reluctance motor for electric automobile

A switched reluctance motor, electric vehicle technology, applied in electric vehicles, motors, synchronous motors for single-phase current, etc., can solve problems such as excessive magnetic density, reduce losses, reduce motor mutual inductance, and improve output Effects of torque and efficiency

Inactive Publication Date: 2018-11-13
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of excessive local magnetic density between the teeth of the existing switched reluctance motor, and propose a switched reluctance motor for electric vehicles, wh

Method used

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  • Switched reluctance motor for electric automobile
  • Switched reluctance motor for electric automobile
  • Switched reluctance motor for electric automobile

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Embodiment Construction

[0016] see figure 1 , the outside of the present invention is the stator 1, and the stator 1 is formed by laminating silicon steel sheets. The inner coaxial sleeve of the stator 1 is provided with a rotor sleeve 4 , and the center of the rotor sleeve 4 is coaxially fixedly sleeved outside the rotating shaft 5 . Stator 1 is composed of stator yoke 1-3 and stator teeth. A plurality of stator teeth are evenly arranged on the inner wall of stator yoke 1-3 along the circumferential direction. Stator teeth are composed of bifurcated excitation teeth 1-1 and auxiliary teeth 1-2. The number of excitation teeth 1-1 and auxiliary teeth 1-2 are equal and arranged alternately.

[0017] On the outer wall of the rotor sleeve 4, a plurality of segmented rotors 2 are evenly arranged along the circumferential direction. The segmented rotors 2 are made of laminated silicon steel sheets. Slot holes equal to the number of segmented rotors 2 are evenly processed to fix the segmented rotors 2 so ...

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Abstract

The invention discloses a switched reluctance motor for an electric automobile. Stator teeth are composed of branch excitation teeth and auxiliary teeth which are equal in number and are arranged in astaggered mode; a V-shaped groove is formed in the middle of the inner end plane of each branch excitation tooth; a V-shaped opening is aligned to the center of a rotor sleeve; each branch excitationtooth is divided into two same branch teeth by the V-shaped groove; the non-branch part between each branch tooth and a stator yoke is a branch tooth yoke part; a winding is wound on the branch toothyoke part; and a plurality of block rotors are uniformly arranged on the outer wall of the rotor sleeve in the circumferential direction. By virtue of the switched reluctance motor, the excitation teeth are arranged to be of a branch structure, so that the problem that the local magnetic density between teeth is too high is solved; a local position saturation phenomenon of the teeth can be reduced at the maximum inductance position; the maximum inductance value is increased under the same excitation condition, and then the output torque and efficiency of the motor are improved; and the branchexcitation teeth, the auxiliary teeth and the block rotors are combined, so that the excitation loop is further shortened.

Description

technical field [0001] The invention belongs to the technical field of motor manufacturing and application, in particular to a switched reluctance motor suitable for electric vehicles. Background technique [0002] Due to the double salient pole structure of the stator and rotor of the traditional switched reluctance motor, the torque ripple and vibration noise are relatively large during operation, and the double salient pole structure of the stator and rotor makes the wind resistance of the rotor large during high-speed operation. These shortcomings have become traditional It is one of the difficulties and bottlenecks in the promotion and application of switched reluctance motors in the field of electric vehicles. To solve this problem, a switched reluctance motor with block stator and rotor structure is adopted, and the stator is divided into excitation teeth and auxiliary teeth. The obvious defect of this type of motor is that: when the motor is at the position of maximu...

Claims

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Application Information

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IPC IPC(8): H02K19/10H02K1/14H02K1/24
CPCH02K1/146H02K1/246H02K19/103H02K2201/15H02K2213/00Y02T10/64
Inventor 孙晓东刁凯凯陈龙周卫琪杨泽斌韩守义李可
Owner JIANGSU UNIV
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