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Eccentric tooth-type permanent magnet vernier motor

A vernier motor, eccentric technology, applied in the direction of motors, synchronous motors with stationary armatures and rotating magnets, magnetic circuits, etc., can solve the problems of small output torque, trapezoidal back EMF waveform, etc. , The effect of large output torque and high utilization rate

Inactive Publication Date: 2018-12-04
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of small output torque of traditional vernier motor and trapezoidal counter electromotive force waveform, the present invention proposes an eccentric tooth type permanent magnet vernier motor

Method used

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  • Eccentric tooth-type permanent magnet vernier motor
  • Eccentric tooth-type permanent magnet vernier motor

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specific Embodiment approach 1

[0019] Specific implementation mode one, see figure 1 with figure 2 Describe this embodiment, the eccentric gear permanent magnet vernier motor described in this embodiment includes a casing 7, a stator 4, a cup-shaped rotor 6 and an output shaft 3; the casing 7 is a cylindrical structure, and the two ends of the casing 7 It is blocked by the left end cover 1 and the right end cover 2 respectively, the output shaft 3 runs through the two end covers, the left end cover 1 extends to the inside of the casing 7 around the output shaft 3 to form a base 1-1, and the base 1-1 and the output shaft 3 There is an air gap between them; the stator 4 is fixed on the outside of the base 1-1, the cup bottom 6-1 of the cup-shaped rotor 6 is fixed on the output shaft 3, and the cup body 6-2 of the cup-shaped rotor 6 is set on the machine Between the shell 7 and the stator 4, and the opening end faces the left end cover 1, there is an air gap between the stator 4 and the casing 7 and the cup-...

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Abstract

The invention discloses an eccentric tooth-type permanent magnet vernier motor, which belongs to the field of vernier fault-tolerant motors and aims at solving the problems of low output torque and trapezoidalization of a back electromotive force waveform of the traditional vernier motor. In the scheme, a case has a cylindrical structure, an output shaft passes through two ends of the case, a leftend cover surrounds the output shaft inside the case to extend to form a base, and an air gap exists between the base and the output shaft; a stator sleeves the base, the cup bottom of a cup-shaped rotor fixedly sleeves the output shaft, the cup body of the cup-shaped rotor is arranged between the case and the stator, the opening end faces the left end cover, and air gaps exist between the statorand the cup-shaped rotor and between the case and the cup-shaped rotor; a stator comprises an annular stator iron core, the inner ring of the stator iron core fixedly sleeves the base, the excircle surface of the stator iron core is provided with n first modulation rods and n second modulation rods alternately along the circumference, the top end of the first modulation rod is provided with a modulation tooth, the top end of the second modulation rod is provided with two modulation teeth, 3n modulation teeth are located on the same circumference and are uniformly distributed, and the modulation teeth adopt eccentric teeth.

Description

technical field [0001] The invention belongs to the field of vernier fault-tolerant motors, and relates to an eccentric gear motor. Background technique [0002] In recent years, direct drive technology has received more and more attention and has become a research hotspot in the field of electric motors. Although traditional direct drive motors can reduce mechanical loss, noise, and improve efficiency and reliability, in order to obtain greater torque, the volume is generally larger, and the cost of control circuit components has also increased. [0003] The vernier motor based on the principle of magnetic flux modulation has attracted more and more scientific researchers' attention because of its simple structure, reliable operation and high torque density. The vernier motor can realize low-speed high-torque output, especially suitable for applications requiring direct drive such as wind power generation, ship propulsion, and electric vehicles. Although the traditional v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/22H02K21/02H02K1/14H02K1/27
CPCH02K1/14H02K1/2786H02K21/028H02K21/22Y02T10/64
Inventor 谢颖夏煜张晓明华邦杰
Owner HARBIN UNIV OF SCI & TECH
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