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Permanent magnet synchronous motor rotor and manufacturing process thereof

A permanent magnet synchronous motor and manufacturing process technology, applied in the direction of magnetic circuit rotating parts, manufacturing stator/rotor body, magnetic circuit shape/style/structure, etc. Poor reliability and other problems, to achieve the effect of easy heat dissipation, good thermosetting properties, and good fixed reliability

Active Publication Date: 2012-12-19
芜湖杰诺瑞汽车电器系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure is fixed with poor reliability, not suitable for high-speed motors, and the overall mechanical strength is poor, which affects the service life of the motor

Method used

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  • Permanent magnet synchronous motor rotor and manufacturing process thereof
  • Permanent magnet synchronous motor rotor and manufacturing process thereof

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Embodiment Construction

[0016] The specific implementation manner of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings.

[0017] like figure 1 and figure 2 As shown, a permanent magnet synchronous motor rotor includes a rotor core 1, a rotor shaft 2, and a permanent magnet 3. The permanent magnet 3 is embedded in the rotor core 1, and in the gap between the rotor core 1 and the permanent magnet 3 Epoxy 4 is provided. Epoxy resin has good thermosetting properties, good fixing reliability, high overall mechanical strength, good thermal conductivity, easy heat dissipation, and is suitable for high-speed motors.

[0018] Preferably, the permanent magnets 3 are horizontally and evenly distributed in the rotor core 1 parallel to the axis of the rotor shaft, so as to ensure better dynamic balance when the rotor rotates at high speed.

[0019] Further, rotor end plates 5 are provided at both ends of the rotor core 1, ...

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Abstract

The invention discloses a permanent magnet synchronous motor rotor and a manufacturing process thereof. The rotor comprises a rotor core, a rotor shaft and a permanent magnet, wherein the permanent magnet is embedded in the rotor core, and epoxy resin is arranged in a clearance between the rotor core and the permanent magnet. Since the epoxy resin is heated and then filled into the clearance between the rotor core and the permanent magnet to form an overall structure and has good hot setting properties, the permanent magnet synchronous motor rotor has the advantages of good fixing reliability, high overall mechanical strength and good thermal conductivity, and heat dissipation can be facilitated, and the permanent magnet synchronous motor rotor is suitable for a high-speed motor.

Description

technical field [0001] The invention relates to the technical field of permanent magnet synchronous motors, in particular to a permanent magnet synchronous motor rotor and a manufacturing process thereof. Background technique [0002] At present, the permanent magnets in the rotor of the permanent magnet synchronous motor are mostly embedded in the rotor iron core of the rotor with interference or fixed with glue after being embedded. The structural fixation reliability is poor, it is not suitable for high-speed motors, and the overall mechanical strength is poor, which affects the service life of the motor. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a permanent magnet synchronous motor rotor to achieve the purpose of good structural fixation reliability, high overall mechanical strength, and suitable for high-speed motors. [0004] In order to solve the above-mentioned technical problems, the technical sol...

Claims

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Application Information

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IPC IPC(8): H02K1/27H02K15/03
Inventor 郭俊起
Owner 芜湖杰诺瑞汽车电器系统有限公司
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