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Tangential motor, tangential motor rotor and rotor core of tangential motor rotor

A rotor core and motor rotor technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of increasing motor vibration and noise, affecting the user's health, motor vibration and noise, etc., to reduce harmonic occupation Comparing with harmonic loss, improving the direction of magnetic flux and ensuring the effect of magnetic isolation effect

Active Publication Date: 2017-10-10
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] At present, the air-gap flux density and back EMF of tangential permanent magnet synchronous motors contain various space harmonics. Due to the slots on the stator of tangential permanent magnet synchronous The potential contains various space harmonics, and the proportion of harmonics is large. The interaction of various harmonics generates low-order force waves, which increases the vibration and noise of the motor
The sine degree of the waveform is poor, and the waveform distortion rate is high, which makes the vibration and noise of the motor larger, which affects the user's health and limits the application and promotion of the motor

Method used

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  • Tangential motor, tangential motor rotor and rotor core of tangential motor rotor

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Embodiment Construction

[0048] The invention discloses a tangential motor rotor to improve heating effect and heating efficiency. The invention also provides a motor with the above-mentioned tangential motor rotor.

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0050] Please refer to figure 1 The embodiment of the present invention provides a rotor core, including a rotor body 1 and a magnetic steel slot 2 arranged on the rotor body 1. 2N magnetic isolation magnetic poles are arranged on the rotor magnetic ...

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Abstract

The invention discloses a tangential motor, a tangential motor rotor and a rotor core of the tangential motor rotor. The rotor core comprises a rotor body (1) and magnetic steel grooves (2) which are formed in the rotor body (1), 2N magnetic isolation holes (11) are formed in a rotor magnetic pole between two adjacent magnetic steel grooves (2), and the 2N magnetic isolation holes (11) are symmetrically formed in two sides of the magnetic pole center axis of the rotor magnetic pole; the widths of the magnetic isolation holes (11) increase from the circle center of the rotor body (1) to the outer side of the rotor body (1), and the outer side hole surfaces, close to the outer side of the rotor body (1), of the magnetic isolation holes (11) are arc-shaped surfaces which are concentrically arranged with the rotor body (1). The rotor core reduces the vibration noise of the motor and improves the efficiency of the motor.

Description

Technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a tangential motor, a tangential motor rotor and its rotor core. Background technique [0002] Since the tangential permanent magnet synchronous motor has the "magnetization" effect, compared with the radial permanent magnet synchronous motor, it can produce a higher air gap magnetic density, making the motor small in size, light in weight, large in torque and power density. The advantages of large, high motor efficiency and good dynamic performance are increasingly being used in industrial fields such as servo systems, electric traction, and the home appliance industry. [0003] At present, the air gap flux density and back EMF of the tangential permanent magnet synchronous motor contain various spatial harmonics. Due to the slots in the stator of the tangential permanent magnet synchronous motor, the magnetic circuit permeance is not uniform, and the air gap flux density,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K29/03
CPCH02K1/2766H02K29/03H02K2213/03H02K1/2773H02K1/146Y02T10/64
Inventor 胡余生肖勇王晶陈彬米泽银张辉
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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