A rotor of a miniature permanent magnet motor

A permanent magnet motor, miniature technology, applied in the direction of magnetic circuit rotating parts, magnetic circuits, electromechanical devices, etc., can solve the problems of reduced fatigue resistance of permanent magnets, poor stability of permanent magnets, and reduced service life of motors, etc., to achieve Facilitate follow-up maintenance and processing, increase the fixing effect and prolong the service life

Active Publication Date: 2022-01-07
超音速智能技术(杭州)有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the permanent magnets in the rotors of micro permanent magnet motors currently on the market are usually bonded to the outer circumference of the rotor yoke with high-temperature glue, or the permanent magnets are embedded on the outer circumference of the rotor yoke. When the torque increases, the The greater the shear force, the lower the fatigue resistance of the permanent magnet as a component, and the greater the possibility of damage. The stability of the permanent magnet is not good. service life

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A rotor of a miniature permanent magnet motor
  • A rotor of a miniature permanent magnet motor
  • A rotor of a miniature permanent magnet motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0026] see Figure 1-10 , in an embodiment of the present invention, a rotor of a miniature permanent magnet motor includes a rotor body 10, a rotating shaft 20 is embedded in the center of the rotor body 10, and a permanent magnet block 50 is arranged inside the rotor body 10, and the rotor body 10 The outer side of the sleeve is provided with a fixed mount 30, the fixed mount 30 is used to fix the permanent magnet block 50, and the two ends of the rotating s...

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 discloses a rotor of a miniature permanent magnet motor, which relates to the technical field of motors, and comprises a rotor body, a rotating shaft is embedded in the center of the rotor body, and a permanent magnet block is arranged inside the rotor body, and the rotor body The outer side of the rotating shaft is provided with a fixed frame, and the fixed frame is used to fix the permanent magnet block, and the two ends of the rotating shaft are provided with bearings. The invention has reasonable structure, convenient installation and disassembly, and good stability. The permanent magnet block can be fixed in the rotor iron core through the set fixing frame to increase its stability, so that the permanent magnet block will not move when the motor rotates at high speed. At the same time, the fixing frame can be quickly installed and disassembled, which is convenient for the replacement of the permanent magnet block and the subsequent maintenance of the rotor. Poor and easy to fall off defects, prolong the service life of the motor rotor, and reduce production costs.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a rotor of a miniature permanent magnet motor. Background technique [0002] The permanent magnet brushless DC motor is a DC motor with a magnetic field established by one or more permanent magnets. Its performance is similar to that of a separately excited DC motor with constant excitation current, and the speed can be easily adjusted by changing the armature voltage. Compared with other DC motors, it has the advantages of small size, high efficiency, simple structure, and less copper consumption. It is the main type of low-power DC motors. [0003] A permanent magnet motor is mainly composed of a stator, a rotor, and an end cover. The rotor refers to a rotating body supported by a bearing, and is mainly composed of a rotor core, a permanent magnet, and a rotating shaft. [0004] However, the permanent magnets in the rotors of micro permanent magnet motors currently on the marke...

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 Patents(China)
IPC IPC(8): H02K1/30H02K1/27
CPCH02K1/30H02K1/278
Inventor 张磊张伟
Owner 超音速智能技术(杭州)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap