Rotor of motor and motor

A technology of rotor and rotor body, applied in electrical components, electromechanical devices, magnetic circuit rotating parts, etc., can solve the problems of large electromagnetic excitation force and noise, and achieve the effect of reducing electromagnetic excitation force

Pending Publication Date: 2019-09-13
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of relatively large electromagnetic excitation force and high noise of the motor in the prior art, thereby providing a rotor and a motor that can reduce the electromagnetic excitation force and noise.

Method used

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  • Rotor of motor and motor
  • Rotor of motor and motor
  • Rotor of motor and motor

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Embodiment Construction

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

[0030] like Figure 1-Figure 3 As shown, this embodiment provides a rotor of a motor, including a rotor body 1 and a plurality of magnetic steels 2 .

[0031] The rotor body 1 is provided with a plurality of magnetic steel grooves 3 .

[0032] Each magnetic steel 2 is respectively arranged in the correspond...

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Abstract

The invention provides a rotor of a motor and the motor. The rotor of the motor comprises: a rotor body provided with a plurality of magnetic steel grooves; magnetic steel arranged in the magnetic steel grooves, wherein the thickness of the magnetic steel is T, the width of a magnetic bridge between the N and S poles of the magnetic steel is B, L=B / 2, the ratio L / T between L and T is 0.5-1. According to the simulation analysis result, when the L / T is 0.5-1, the electromagnetic excitation force of the 36-frequency multiplication and the 72-frequency multiplication of the motor are both smaller,so that the electromagnetic excitation force of the 36-frequency multiplication and the 72-frequency multiplication of the motor can be effectively reduced by setting the L / T to be 0.5-1, and the motor is effectively denoised.

Description

technical field [0001] The invention relates to the field of power drive technology, in particular to a motor rotor and a motor. Background technique [0002] As the concept of energy saving and environmental protection becomes more and more popular, new energy vehicles are becoming more and more popular in the market. Electric drive, as a key part of the energy conversion of new energy vehicles, has a great impact on the comfort of new energy vehicles. [0003] New energy vehicles do not have the masking effect of the engine, and the noise of the electric drive and electronic control system becomes the main noise source. With the development of the drive motor towards a wide speed range, higher speed, and lightweight, the electromagnetic excitation force is reduced. In turn, reducing the noise of the motor has become a common pursuit of the industry. Contents of the invention [0004] Therefore, the technical problem to be solved by the present invention is to overcome t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/28
CPCH02K1/27H02K1/28H02K2213/03
Inventor 汪汉新贾金信郭长光李忠雨张琦姜月明
Owner GREE ELECTRIC APPLIANCES INC
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