Axial-radial hybrid flux permanent magnet machine

A permanent magnet motor, shaft radial technology, applied to synchronous motors with static armatures and rotating magnets, synchronous machine parts, magnetic circuit rotating parts, etc. The problems of low effective utilization of space and non-compact motor structure can achieve the effect of compact structure, improved torque density, and improved material utilization rate.

Inactive Publication Date: 2015-09-02
HUAZHONG UNIV OF SCI & TECH
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the commonly used permanent magnet motors can be divided into two categories: axial flux and radial flux permanent magnet motors, and their ends are difficult to use, the effective utilization of the entire space of the motor is low, the structure of the motor is not compact, and the motor is still Room for improved torque density and power density
[0003] In the traditional design, the size of the motor is optimized. For example, the radial permanent magnet motor adopts a structure with a large length-to-diameter ratio, and the axial permanent magnet motor adopts a structure with a small length-to-diameter ratio; technical measures such as fractional concentrated windings are used to Improve the torque density of the motor, but its improvement is limited, and it is difficult to use the end of the motor winding. Here, people seek a more compact structure, combining the topology of the axial flux and radial flux permanent magnet motor and Performance characteristics, two axial flux permanent magnet motors and one radial flux permanent magnet motor are combined into a hybrid flux permanent magnet motor, which makes full use of the idle space of the motor, has a more compact structure, and effectively improves the motor performance. power and torque density, however, the axial and radial magnetic fluxes in the stator core of the proposed structure are independent of each other. Use soft magnetic composite materials or steel with good magnetic permeability, and its processing technology is complicated, and the torque density is not high

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
  • Axial-radial hybrid flux permanent magnet machine
  • Axial-radial hybrid flux permanent magnet machine
  • Axial-radial hybrid flux permanent magnet machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] Such as figure 1 As shown, in this embodiment, the stator core 1-1 is composed of 12 stator core modules 10, the stator core 1-1, the axial winding 2, the radial winding 3, the fixed connection shaft 8, and the shaft 9 constitute the stator 1. The stator core 1 is fixed on the shaft 9 through the fixed connection shaft 8 , and the rotor 11 is arranged outside the stator core 1 . The rotor 11 is composed of a rotor core 7, a radial permanent magnet 4 and an axial permanent magnet 5, and 10 radial permanent magnets 4 are evenly pasted on the inner circular wall of the rotor core 7, and these 10 radial permanent magnets The magnets 4 are evenly arranged around the shaft 9, and the inner surfaces on both sides of the rotor core 7 are respectively provided wit...

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 provides an axial-radial hybrid flux permanent magnet machine, belonging to the field of permanent magnet machines. The permanent magnet machine includes a stator, a rotor, and a shaft, the stator is fixed on the shaft through fixed connection, the rotor is arranged at the outer side of the stator, the rotor and the shaft are in rotation connection through a bearing, the stator core is formed by the uniform circular arrangement of a plurality stator core modules along the shaft, each stator core module is provided with a radial tooth and two axial teeth and is provided with a stator winding, a plurality of radial permanent magnets are uniformly distributed on the inner circular wall surface of the rotor and are uniformly surrounding the shaft, and the inner surface of the end faces of the two sides of the rotor are uniformly provided with a plurality of axial permanent magnets in a radial manner. The axial-radial hybrid flux permanent magnet machine can effectively solve the problems that a permanent magnet machine in the prior art is small in space availability, non-compact in motor structure, difficult in machining and assembling, and cannot effectively improve the torque density and power density.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to an axial-radial mixed flux permanent magnet motor. Background technique [0002] At present, the commonly used permanent magnet motors can be divided into two categories: axial flux and radial flux permanent magnet motors, and their ends are difficult to use, the effective utilization of the entire space of the motor is low, the structure of the motor is not compact, and the motor is still There is room to increase torque density and power density. [0003] In the traditional design, the size of the motor is optimized. For example, the radial permanent magnet motor adopts a structure with a large length-to-diameter ratio, and the axial permanent magnet motor adopts a structure with a small length-to-diameter ratio; technical measures such as fractional concentrated windings are used to Improve the torque density of the motor, but its improvement is limited, and it is difficult to...

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): H02K21/22H02K21/02H02K1/27H02K1/14
Inventor 杨凯魏续彪吴冇
Owner HUAZHONG UNIV OF SCI & TECH
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