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High power density permanent magnet brushless double-feed electric motor in novel structure

A high power density, permanent magnet brushless technology, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems of high motor speed, winding frequency, and pole logarithm

Inactive Publication Date: 2015-07-29
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the motor has higher requirements on the motor speed, winding frequency and number of pole pairs.

Method used

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  • High power density permanent magnet brushless double-feed electric motor in novel structure
  • High power density permanent magnet brushless double-feed electric motor in novel structure
  • High power density permanent magnet brushless double-feed electric motor in novel structure

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Embodiment Construction

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

[0022] A specific implementation of a new structure of high power density brushless permanent magnet double-fed motor is as follows: Figure 1-2 As shown, this is a permanent magnet motor with double stators, which is mainly composed of three parts, which are the first stator 1, the rotor 2, and the second stator 3 in sequence. After assembly and molding, the two stators 1, 3 are located on the outside, and the rotor 2 is located on the inside of the two stators 1, 3. The two stators are connected and fixed by the stator support frame 12 , and the rotor 2 is fixed on the rotor shaft 23 and supported by the bearing 24 .

[0023] The rotor 2 of the new high power density permanent magnet brushless double-fed motor proposed by the patent of the present invention is a ring structure, and the permanent magnets 21 and 22 are embedded in the inner an...

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PUM

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Abstract

The invention provides a high power density permanent magnet brushless double-feed electric motor in a novel structure. The motor comprises a first stator, a second stator and a rotor; the first stator and the second stator are arranged on two sides of the rotor; an external air gap is formed between the first stator and the rotor; an internal air gap is formed between the rotor and the second stator; the first stator and the second stator are connected through a stator support to be fixed; permanent magnets are arranged on the internal side and the external side of the rotor; the rotor is fixed on a rotary shaft; the first stator and the second stator are respectively provided with an armature winding. The high power density permanent magnet brushless double-feed electric motor in the novel structure can reduce manufacturing costs and improve the motor power density and efficiency.

Description

technical field [0001] The invention relates to a motor, in particular to a novel high power density permanent magnet brushless double-fed motor with double stators. Background technique [0002] Compared with traditional electrically excited motors, permanent magnet motors have significant advantages such as simple structure, reliable operation, small size, light weight, low loss, high efficiency, and flexible and diverse shapes and sizes of motors. Therefore, they have attracted extensive attention from the electric vehicle industry. . Compared with the traditional single stator permanent magnet brushless motor, the double stator permanent magnet brushless motor has higher torque density and power density. Therefore, in a high-power drive system, in order to increase the power density of the motor and reduce the cost, the motor can adopt a double-stator structure. [0003] Patent CN203352396U provides a new type of motor with a double-stator structure. The rotor is a cup...

Claims

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Application Information

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IPC IPC(8): H02K16/04H02K29/00H02K9/00
Inventor 郭新华黄燕涛曾培煌武少哲薛娴
Owner HUAQIAO UNIVERSITY
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