Bilateral magnetic flux switching permanent magnet linear motor

A technology of magnetic flux switching and permanent magnet straight line, which is applied in the field of motors, can solve the problems of hindering motor movement and large suction force, and achieve the effects of increasing mechanical stability, small gaps, and reducing maintenance costs

Inactive Publication Date: 2011-05-04
SOUTHEAST UNIV
View PDF3 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ratio of the thrust of the motor and the suction between the stator and the mover of this structure is 1:10~15. For the large-thrust unilateral linear motor, there is a problem of excessive suction, and the track supporting the mover needs to use a solid s

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
  • Bilateral magnetic flux switching permanent magnet linear motor
  • Bilateral magnetic flux switching permanent magnet linear motor
  • Bilateral magnetic flux switching permanent magnet linear motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0015] Such as figure 1 As shown, the motor of the present invention adopts a long secondary-short primary structure, two secondary iron cores 1 are located on both sides of the primary iron core 2, the primary coil 4 is wound inside the primary iron core 2, and the permanent magnet 5 is located at two adjacent primary iron cores. In the middle of the iron core 2, the magnetization direction of the adjacent permanent magnets 5 is opposite, and the air gap 3 between the p...

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 bilateral magnetic flux switching permanent magnet linear motor which comprises secondary cores, primary cores, primary coils and a permanent magnet. The primary cores are vertically arranged; the secondary cores are located on the left and right sides of the primary cores; the primary coils are wound in the primary cores; and the permanent magnet is located between two adjacent primary cores. Due to the bilateral structure of the bilateral magnetic flux switching permanent magnet linear motor disclosed by the invention, the normal attractive force formed between the primary cores and the secondary cores can be canceled out, and the air gap fluctuation produced by excessive attractive force is weakened, thus the performance of electromagnetic thrust and the operation stability of the motor are improved, and the motor provided by the invention is suitable for the long-distance linear motion; and moreover, the bilateral structure has small gaps in which impurities such as scrap iron cannot fall easily, and the motor maintenance cost is reduced.

Description

technical field [0001] The invention relates to an electric motor, especially a linear electric motor. Background technique [0002] With the rapid development of economy and society, people's demand for linear motors is becoming increasingly fierce. This can be well reflected in fields from industrial automation to machining, mainly because linear motors do not require additional motion conversion devices to convert rotary motion into linear motion compared with traditional rotary motors, which can Increases the efficiency of the motor and avoids energy loss during motion conversion. [0003] Commonly used linear motors mainly include linear induction motors and linear synchronous motors. The secondary structure of the linear induction motor is relatively simple, but its power factor and efficiency are low; the linear synchronous motor has the advantages of high efficiency and high power density, but because its winding and permanent magnet are respectively located in the...

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): H02K41/03
Inventor 余海涛朱嘉东刘强黄磊胡敏强孙国平冯四平朱斌
Owner SOUTHEAST UNIV
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