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Double-magnetic-circuit magnetism adjusting type axial permanent magnet motor

A permanent magnet motor, dual magnetic circuit technology, applied in the direction of magnetic circuit, magnetic circuit static parts, magnetic circuit rotating parts, etc., can solve problems such as reducing overall efficiency, reliability, damage, etc., to improve torque output capability and speed regulation range, enhance the magnetic concentration ability, the effect of large heat dissipation area

Active Publication Date: 2020-01-10
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mechanical gears transmit torque by the meshing of teeth, so problems such as friction loss, mechanical wear, lubrication, vibration and noise are inevitable, and irreversible damage is easily caused under irregular load or overload conditions, reducing the overall efficiency of the system and reliability

Method used

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  • Double-magnetic-circuit magnetism adjusting type axial permanent magnet motor
  • Double-magnetic-circuit magnetism adjusting type axial permanent magnet motor
  • Double-magnetic-circuit magnetism adjusting type axial permanent magnet motor

Examples

Experimental program
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Embodiment Construction

[0025] The present invention will be further explained below in conjunction with the accompanying drawings.

[0026] Such as Figure 1 to Figure 5 , an axial permanent magnet motor with dual magnetic circuits, including an inner rotor 4 arranged in the middle, a first stator 3 and a second stator 5 arranged symmetrically on both sides of the inner rotor, and placed symmetrically on the outermost side with respect to the inner rotor The first rotor 1 and the second rotor 7, the first magnetic modulation ring 2 and the second magnetic modulation ring 6 installed between the first rotor 1 and the first stator 3 and the second rotor 7 and the second stator; The first stator 3 has the same structure as the second stator 5 and is installed symmetrically and coaxially with respect to the inner rotor 4 .

[0027] The inner rotor 4 is composed of several inner rotor permanent magnets 17 arranged along the circumference, and the magnetization direction of the rotor permanent magnets is...

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PUM

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Abstract

The invention discloses a double-magnetic-circuit magnetism adjusting type axial permanent magnet motor. The motor comprises a first rotor, a first magnetism adjusting ring, a first stator, an inner rotor, a second stator, a second magnetism adjusting ring and a second rotor which are coaxially installed. The first rotor and the second rotor each comprise a rotor yoke and a Halbach permanent magnet array arranged on the inner side of the rotor yoke along the circumference. The double magnetic circuits are respectively a magnetic field loop formed among the outer rotor, the magnetism adjustingrings, the stators and the inner rotor and a magnetic field loop formed among the outer rotor, the magnetism adjusting rings and the stators, and the magnetism adjusting performance is enhanced. Magnetic adjusting teeth are additionally arranged, and the double magnetic circuits are adjusted through the magnetic adjusting teeth. Fixing supports of the magnetism adjusting teeth comprise an inner layer and an outer layer arranged along the circumference, and the structure is light and firmer. Because the fixing supports are additionally arranged, there is a larger heat dissipation area for the heat on the magnetism adjusting rings, and cooling is easier.

Description

technical field [0001] The invention relates to an axial permanent magnet motor with dual magnetic circuit magnetic field adjustment, and belongs to the technical field of permanent magnet motors. Background technique [0002] In recent years, electric vehicles have attracted much attention as an emerging industry. Because they are beneficial to solve problems such as limited oil resources and aggravated air pollution, they have also become a very important strategic research industry in my country. The three most important key technical links of electric vehicles focus on: battery, motor and drive. In the absence of fundamental breakthroughs in battery technology, the development of efficient and reliable motors has become the main goal of experts and scholars from all over the world. The axial permanent magnet motor has attracted extensive attention due to its advantages of high torque / power density, excellent heat dissipation performance and compact structure, and axial ...

Claims

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Application Information

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IPC IPC(8): H02K16/00H02K1/27H02K21/02H02K21/04H02K1/17H02K1/14
CPCH02K1/146H02K1/17H02K1/27H02K1/2713H02K1/2786H02K1/2793H02K16/00H02K21/028H02K21/046
Inventor 张蔚张徐梁惺彦张双双翟良冠
Owner NANTONG UNIVERSITY
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