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

Electro-magnetic flux switching motor

A magnetic flux switching motor and electric excitation technology, applied to the static parts of the magnetic circuit, the shape/style/structure of the magnetic circuit, the shape/style/structure of the winding conductor, etc., to achieve high sine degree, high utilization rate of excitation current, The effect of reducing the reluctance

Inactive Publication Date: 2010-07-28
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem of adjusting the air gap magnetic field of the magnetic flux switching motor, the present invention proposes an electric excitation magnetic flux switching motor

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
  • Electro-magnetic flux switching motor
  • Electro-magnetic flux switching motor
  • Electro-magnetic flux switching motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:

[0018] Such as figure 1 As shown, an electric excitation magnetic flux switching motor includes a salient pole stator, an armature winding, an excitation winding and a salient pole rotor 3, wherein the salient pole stator is composed of 12 U-shaped stator iron blocks 2 and 12 bar-shaped magnet conductors 1, a bar-shaped magnetizer 1 is embedded between every two U-shaped stator iron blocks 2, and the length of the bar-shaped magnetizer 1 is smaller than the length of the U-shaped arm of the stator iron block 2, so as to be wound on the bar-shaped magnetizer 1 Excitation coils; the excitation coils are concentrated windings, and 12 excitation coils are connected in series end to end to form a single-phase excitation winding; the adjacent U-shaped arms of two adjacent U-shaped stator iron blocks 2 are wound with concentrated armature coils, and the first concentrate...

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 an electro-magnetic flux switching motor belonging to the field of the electro-magnetic motors. The electro-magnetic flux switching motor comprises salient pole stators, excitation windings, armature windings and salient pole rotors, wherein the salient pole of each stator is a U-shaped iron stator block, a strip-shaped magnetizer is embedded in the space between every two U-shaped iron stator blocks, the length of the magnetizer phase is less than that of the U-shaped arm of the U-shaped iron stator block, the excitation windings are wound on the magnetizer along the radial direction of the motor, and the armature windings are wound on the two U-shaped arms connected with the magnetizer. Based on the maintenance of the high sine degree of the idle stator flux linkage and the ambipolar idle stator flux linkage waveform of the flux switching motor, the invention makes the idle air-gap field to be completely adjusted by the exciting current with a strong magnetic field adjustment capability, thereby overcoming the defect that the air-gap magnetic field of the permanent-magnetism flux switching motor is difficult to adjust.

Description

technical field [0001] The invention relates to an electric excitation magnetic flux switching motor, which belongs to the field of electric excitation motors. Background technique [0002] In the field of motors, permanent magnet motors have absolute advantages in terms of efficiency, power density, and torque density, and are more suitable for occasions that have strict requirements on volume and power. However, the permanent magnets are placed on the rotor, and there are the following problems during high-power / wide-speed operation: 1. The centrifugal force is large during high-speed rotation, and the permanent magnets must be protected; 2. The heat dissipation of the permanent magnets is difficult; 3. The magnetic field of the permanent magnets and the electric current The armature magnetic field is a series structure, and the permanent magnet is greatly affected by the armature magnetic field, and irreversible demagnetization will occur in severe cases. [0003] The st...

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
IPC IPC(8): H02K1/14H02K3/28
Inventor 王宇邓智泉王晓琳
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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