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Inclined pole magnetic bush for electric machines and electric machine rotor and electric machine having the skewed pole magnetic bush

A motor rotor, inclined pole technology, applied in the magnetic circuit rotating parts, synchronous motors with static armatures and rotating magnets, magnetic circuits, etc., can solve the problem of affecting system control accuracy, increased motor loss, vibration and noise problems, to achieve the effects of noise and loss improvement, reduction of magnetic slot torque, and improvement of air gap flux density waveforms

Inactive Publication Date: 2019-01-15
SANHUA AWECO APPLIANCE SYST WUHU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the permanent magnet motor, due to the interaction between the permanent magnet and the slotted armature core, cogging torque is inevitably generated, resulting in torque fluctuations, causing vibration and noise, and affecting the control accuracy of the system
The design of different magnetic tiles also determines the waveform of the air gap flux density of the permanent magnet motor. The unsmooth waveform will cause vibration and noise of the motor, increase the loss of the motor, and reduce the efficiency

Method used

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  • Inclined pole magnetic bush for electric machines and electric machine rotor and electric machine having the skewed pole magnetic bush
  • Inclined pole magnetic bush for electric machines and electric machine rotor and electric machine having the skewed pole magnetic bush
  • Inclined pole magnetic bush for electric machines and electric machine rotor and electric machine having the skewed pole magnetic bush

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Embodiment Construction

[0044] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limitations of the present invention. Those of ordinary skill in the art can There are numerous changes, modifications, substitutions and variations to these embodiments, the scope of the present invention being defined by the claims and their equivalents.

[0045] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "inner", "outer", "axial", "radial", and "circumferential" are based on the orientations shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device ...

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PUM

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Abstract

The invention discloses an inclined pole magnetic bush for an electric machine and an electric machine rotor and an electric machine having the same, The oblique pole magnetic tile comprises: a body that extends obliquely with respect to an axial direction of the motor, the axis of symmetry of the radial section of the body intersects and is perpendicular to the central axis of the motor, and theradial outer side edge of the radial section is formed into an arc which is eccentrically disposed with the center of the motor and has a bending radian greater than that of the radial inner side edge. The inclined pole magnetic bush according to the embodiment of the invention can obviously improve the vibration, noise, loss and the like of the motor, and improve the performance of the motor.

Description

technical field [0001] The present invention relates to the technical field of electric motors, and more particularly, relates to a slanted magnetic tile for a motor, a motor rotor with the slanted magnetic tile, and a motor with the motor rotor. Background technique [0002] The birth of the Brushless Direct Current Motor (BLDCM) overcomes the congenital defects of the brushed DC motor, and replaces the mechanical commutator with an electronic commutator, so the brushless DC motor has both the good tuning of the DC motor. It also has the advantages of simple structure of AC motor, no commutation spark, reliable operation and easy maintenance. The essence of the brushless DC motor is a DC power input, using an electronic inverter to convert DC to AC, and a three-phase AC permanent magnet synchronous motor with rotor position feedback. [0003] With the continuous improvement of the performance of permanent magnet materials, permanent magnet motors are more and more widely u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/14H02K21/02H02K1/27
CPCH02K1/2706H02K21/024H02K21/14H02K2201/03
Inventor 王彬尹斌
Owner SANHUA AWECO APPLIANCE SYST WUHU CO LTD
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