Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for protecting and fixing assembled permanent magnet in large-power permanent magnet motor

A technology of permanent magnet motor and fixing method, which is applied in the direction of laying solid insulation and manufacturing stator/rotor body, etc., which can solve the problems of low production efficiency of permanent magnet motor, high manufacturing cost of permanent magnet motor, and unreliable fixing of permanent magnet, etc., to achieve Effects of eliminating vibration, firm adhesion, and eliminating rust

Inactive Publication Date: 2012-09-19
CRRC YONGJI ELECTRIC CO LTD
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the protection and fixing method of the permanent magnets in the existing permanent magnet motors may cause unreliable fixing of the permanent magnets, damage to the original coating of the permanent magnets, high manufacturing cost of the permanent magnet motors, and easy production of the permanent magnet motors. In order to solve the problem of low efficiency, a method for protection and fixing of permanent magnets in high-power permanent magnet motors after assembly is provided

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A method for protecting and fixing a permanent magnet in a high-power permanent magnet motor after assembly, the method is realized by the following steps:

[0010] 1) Adsorb the permanent magnet on the motor core, and fix the permanent magnet and the motor core mechanically;

[0011] 2) Dip the fixed permanent magnet and motor iron core with insulating varnish to ensure that the insulating varnish fully covers the surface of the permanent magnet and the surface of the motor iron core, and ensure that the insulating varnish is fully filled into the gap between the permanent magnet and the motor iron core ;

[0012] 3) Drying the permanent magnet and motor core after soaking in insulating varnish;

[0013] In this embodiment, in the step 2), the insulating varnish dipping treatment is the vacuum pressure dipping insulating varnish treatment performed by vacuum pressure varnish immersion equipment;

[0014] During specific implementation, the insulating varnish in step ...

Embodiment 2

[0016] A method for protecting and fixing a permanent magnet in a high-power permanent magnet motor after assembly, the method is realized by the following steps:

[0017] 1) Adsorb the permanent magnet on the motor core, and fix the permanent magnet and the motor core mechanically;

[0018] 2) Dip the fixed permanent magnet and motor iron core with insulating varnish to ensure that the insulating varnish fully covers the surface of the permanent magnet and the surface of the motor iron core, and ensure that the insulating varnish is fully filled into the gap between the permanent magnet and the motor iron core ;

[0019] 3) Drying the permanent magnet and motor core after soaking in insulating varnish;

[0020] In this embodiment, in the step 2), the insulating varnish dipping treatment is direct insulating varnish dipping treatment;

[0021] During specific implementation, the insulating varnish in step 2) and the insulating varnish for the permanent magnet motor armature ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to protection and fixing technology of a permanent magnet in a permanent magnet motor, in particular to a method for protecting and fixing the assembled permanent magnet in a large-power permanent magnet motor, which solves the problems that the protection and fixing methods for the permanent magnet in the existing permanent magnet motor can easily cause infirm fixing of the permanent magnet, damage on the original plating layer of the permanent magnet, high manufacturing cost of the permanent magnet motor, low production efficiency of the permanent magnet motor. The method for protecting and fixing the assembled permanent magnet in the large-power permanent magnet motor is realized by the steps as follows: adsorbing the permanent magnet on a motor iron core, and fixing the permanent magnet and the motor iron core in a mechanical manner; conducting insulated paint soaking treatment on the fixed permanent magnet and motor iron core; and drying the permanent magnet and the motor iron core which are subjected to insulated paint soaking treatment. The method is applicable to protection and fixing of the permanent magnet in the permanent magnet motor, especially protection and fixing of the permanent magnet in the large-power permanent magnet motor.

Description

technical field [0001] The invention relates to the protection and fixing technology of permanent magnets in permanent magnet motors, in particular to a method for protecting and fixing permanent magnets in high-power permanent magnet motors after assembly. Background technique [0002] With the wide application of rare earth permanent magnet material - NdFeB alloy, permanent magnet motor has been developed rapidly because of its advantages of simple structure, reliable operation, small size and light weight. During the operation of the permanent magnet motor, the permanent magnet in the motor will fail due to corrosion, vibration and other reasons. Therefore, the protection and fixing of the permanent magnet in the permanent magnet motor is directly related to whether the permanent magnet motor can operate reliably. [0003] The protection and fixing methods of permanent magnets in existing permanent magnet motors mainly include the following two types: the first method is...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/03H02K15/10
Inventor 程东星贺志学石永进
Owner CRRC YONGJI ELECTRIC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com