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Pipe-shaft-type integrated permanent magnet motor rotor

A permanent magnet motor and tube-shaft technology, applied in the direction of magnetic circuit rotating parts, magnetic circuits, electrical components, etc., can solve the problems of motor hazards, rotor temperature rise, etc., achieve convenient cooling, reduce rotor temperature, and save materials Effect

Active Publication Date: 2016-10-26
SHENZHEN WISDOM ENERGY TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the rotor of the motor will generate a lot of heat when it rotates at high speed, which will cause the temperature rise of the rotor to be too high, and the permanent magnet will undergo irreversible demagnetization when the temperature is too high, causing serious damage to the motor. Therefore, the heat dissipation of the motor has become One of the core issues in motor design

Method used

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  • Pipe-shaft-type integrated permanent magnet motor rotor
  • Pipe-shaft-type integrated permanent magnet motor rotor
  • Pipe-shaft-type integrated permanent magnet motor rotor

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Embodiment Construction

[0019] Before describing the embodiments in detail, it should be understood that the present invention is not limited to the detailed structures or arrangements of elements described herein below or in the accompanying drawings. The present invention can be implemented in other ways. Also, it should be understood that the phraseology and terminology used herein are for descriptive purposes only and should not be interpreted as limiting. The terms "including", "comprising", "having" and similar expressions used herein are meant to include the items listed thereafter, their equivalents and other additional items. In particular, when "a certain element" is described, the present invention does not limit the number of the element to one, but may also include a plurality.

[0020] Such as figure 1 with figure 2 As shown, the present invention provides a tube-shaft integrated permanent magnet motor rotor 10, comprising an inner tube 12 and an outer tube 14 spaced apart in a radi...

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Abstract

A pipe-shaft-type integrated permanent magnet motor rotor comprises an inner pipe and an outer pipe which are separated along a radial direction. An inner circumferential surface of the inner pipe forms a vent hole which is extended along an axial direction of the rotor. An annular accommodating space is formed between the inner pipe and the outer pipe. Several permanent magnet poles which are set along a circumference direction of the rotor are arranged in the accommodating space. The permanent magnet motor rotor adopts a pipe-shaft integrated structure. Materials are saved, processing is convenient, the structure is stable and cooling is convenient. The rotor is good for motor performance performing and material and production cost saving.

Description

technical field [0001] The invention relates to a permanent magnet motor rotor, in particular to a tube-shaft integrated permanent magnet motor rotor. Background technique [0002] At present, the permanent magnet motor usually has a rotor core and a permanent magnet fixed to the rotor core installed on the rotor. The motor stator generates a magnetic field after being energized to realize the rotation of the motor rotor, and the rotor generates a strong centrifugal force when it rotates at high speed . In order to prevent the permanent magnet from falling due to centrifugal force and ensure the good running state of the motor, the fixing of the permanent magnet must be firm and reliable. Most of the permanent magnets on the rotor of permanent magnet motors on the market are fixed by rivets. However, the disadvantage of using rivets is that the permanent magnets are made of NdFeB, which is brittle and fragile, and the hole processing process is complicated, difficult to pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/32
CPCH02K1/274H02K1/32
Inventor 王志强李立华
Owner SHENZHEN WISDOM ENERGY TECH CO