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A permanent magnet rotor and a permanent magnet motor

A technology of permanent magnet rotor and rotor shell, which is applied in the direction of magnetic circuit rotating parts, manufacturing of motor generators, and manufacturing of stator/rotor body, etc. Achieve the effect of improving motor performance, saving magnetic steel materials, and improving flatness

Active Publication Date: 2021-05-25
ZHUHAI KAIBANG MOTOR MFR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flatness of the ring-shaped magnet is poor in the actual processing process, which affects the stability of the rotor; moreover, the area of ​​the ring-shaped magnet is relatively large, which easily leads to the cracking of the whole piece of magnet, and also causes the magnet waste of material
[0003] In addition, there is no magnetic circuit between the poles of the circular magnetic steel, and the utilization rate of the magnetic field is low, which affects the overall performance of the rotor
[0004] Furthermore, when the whole piece of circular magnetic steel is glued, it is more likely to be not firmly attached to the rotor shell, resulting in the problem of the magnetic ring falling off; while the air gap of the injection-molded rotor is small, resulting in a low utilization rate of the magnetic field

Method used

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  • A permanent magnet rotor and a permanent magnet motor
  • A permanent magnet rotor and a permanent magnet motor
  • A permanent magnet rotor and a permanent magnet motor

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Embodiment Construction

[0035] The embodiment of the present invention provides a permanent magnet rotor, which improves the flatness of the magnetic ring and further improves the stability of the rotor.

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0037] Please refer to the attached Figure 1-7 , The permanent magnet rotor provided by the embodiment of the present invention includes a magnetic ring, the ma...

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Abstract

The invention provides a permanent magnet rotor, which includes a magnetic ring, the magnetic ring includes at least two magnetic steel segments, and two adjacent magnetic steel segments are fixedly connected. The magnetic ring of the present invention adopts a segmented structure consisting of at least two magnetic steel segments. During the processing, a single magnetic steel segment can be processed separately. The processing area is small and the flatness is better, so the plane of the magnetic ring is improved. degree, thereby improving the stability of the permanent magnet rotor. In addition, the magnetic steel slices of the above-mentioned sliced ​​structure occupy a small area, which can save the magnetic steel material and prevent the cracking of the magnetic steel, thereby improving the performance of the motor. This structure is conducive to actual processing, production and popularization and application. The present invention also provides a permanent magnet motor with the above permanent magnet rotor.

Description

technical field [0001] The present invention relates to the technical field of motors, and more specifically relates to a permanent magnet rotor, and also relates to a permanent magnet motor with the above-mentioned permanent magnet rotor. Background technique [0002] The magnetic ring of the permanent magnet rotor usually adopts a circular whole piece of magnetic steel, which is fixed with the rotor shell by glue. The flatness of the ring-shaped magnet is poor in the actual processing process, which affects the stability of the rotor; moreover, the area of ​​the ring-shaped magnet is relatively large, which easily leads to the cracking of the whole piece of magnet, and also causes the magnet waste of material. [0003] In addition, there is no magnetic circuit between the poles of the circular magnetic steel, and the utilization rate of the magnetic field is low, which affects the overall performance of the rotor. [0004] Furthermore, when the whole piece of circular ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/27H02K15/03
CPCH02K1/27H02K15/03H02K2213/03
Inventor 丁佳婷高晓峰刘丹黄润宇吴泽华李庆陈东锁
Owner ZHUHAI KAIBANG MOTOR MFR