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Outer-rotor high-speed generator using circumferential integral composite permanent magnet structure

A high-speed generator and external rotor technology, applied to synchronous motors with stationary armatures and rotating magnets, magnetic circuit shape/style/structure, winding conductor shape/style/structure, etc., can solve the problem of affecting the reliability of the motor and operating life, irreversible demagnetization rotor strength, large rotor eddy current loss, etc., to solve the effects of severe local heating, increase the rotor speed limit, and reduce core loss

Active Publication Date: 2018-08-24
SHENYANG POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: The present invention proposes an outer rotor high-speed generator adopting a circumferential integral composite permanent magnet structure. Problems and damage to the rotor due to insufficient strength of the rotor under high-speed rotation, seriously affecting the reliability and operating life of the motor

Method used

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  • Outer-rotor high-speed generator using circumferential integral composite permanent magnet structure
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  • Outer-rotor high-speed generator using circumferential integral composite permanent magnet structure

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specific Embodiment approach

[0032] The specific embodiment: the present invention is specifically described below in conjunction with accompanying drawing:

[0033] An outer rotor high-speed generator adopting a circumferential integral composite permanent magnet structure, characterized in that: the high-speed motor includes an outer rotor and a stator arranged in the outer rotor, and there is a gap between the outer rotor and the stator; the stator includes a stator core 5 and stator winding 3; the stator winding 3 is arranged in the stator slot opened on the outer wall of the stator core 5, and the opening of the stator slot faces the outer rotor;

[0034] The outer rotor includes a rotor core 4 and a hybrid permanent magnet structure 7; the hybrid permanent magnet structure 7 is composed of a plurality of hybrid permanent magnet units, and each hybrid permanent magnet unit is composed of an outer layer of carbon fiber or glass fiber layer 10 and an inner new hybrid permanent magnet material layer 11,...

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Abstract

An outer-rotor high-speed generator using circumferential integral composite permanent magnet structure is characterized in that: the high-speed motor comprises an outer rotor and a stator disposed inthe outer rotor; the stator is disposed in an axial through hole of the outer rotor; and a gap is arranged between the outer rotor and the stator. Such structure can reduce a heat source in the rotorof the motor, and solve the overheating of the rotor of the high-speed motor fundamentally. In addition, such structure ensures the uniformity, the integrity and the consistency of the rotor of the motor, and can mechanically solve the problem that the permanent magnet is broken by the large tensile stress under the condition of high-speed rotation.

Description

technical field [0001] The invention relates to an outer rotor high-speed generator adopting a circumferential integral composite permanent magnet structure. It belongs to the field of motors. Background technique [0002] Due to the high power density and high speed of the high-speed permanent magnet synchronous generator, the volume of the motor is much smaller than that of the medium and low speed motors with the same output power, so it can effectively save materials; the small size of the high-speed motor makes it have a small moment of inertia and has a relatively Fast dynamic response capability; and because the high-speed motor can be directly connected with the prime mover, the traditional mechanical transmission device is omitted, so the efficiency of the traditional system can be improved and the noise can be reduced. In particular, permanent magnet generators have the advantages of high energy density, simple structure, no excitation loss and high efficiency, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/14H02K1/27H02K3/28H02K1/16B32B9/00B32B5/02B32B5/16B32B9/04B32B27/06B32B17/02B32B17/10B32B33/00
CPCH02K1/165H02K1/2786H02K3/28H02K21/14B32B5/24B32B5/30B32B27/12B32B33/00B32B2307/30B32B2307/212B32B2307/54B32B2262/106B32B2262/101
Inventor 金石刘光伟张凤阁刘豪蒋晓东王皓
Owner SHENYANG POLYTECHNIC UNIV
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