Low-positioning-force bilateral flux switching permanent magnet linear motor

A permanent magnet linear motor and magnetic flux switching technology, applied in the direction of magnetic circuits, electromechanical devices, electrical components, etc., can solve the problems of increased air gap flux density, low thrust density, high production cost, etc., and reduce the flow path of magnetic flux , reduce the positioning force, meet the low effect

Active Publication Date: 2020-08-07
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The long secondary of bilateral flux switching permanent magnet linear motors is only composed of magnetically conductive materials, and the primary is only composed of armature windings and magnetically conductive materials. It has the advantages of high reliability, simple structure, and is suitable for long-stroke

Method used

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  • Low-positioning-force bilateral flux switching permanent magnet linear motor
  • Low-positioning-force bilateral flux switching permanent magnet linear motor
  • Low-positioning-force bilateral flux switching permanent magnet linear motor

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Embodiment Construction

[0030] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0031] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0032] Such as Figure...

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PUM

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Abstract

The invention discloses a low-positioning-force bilateral flux switching permanent magnet linear motor, and relates to the technical field of linear motors. The motor comprises double-side secondary stators and a primary rotor arranged between the stators. A plurality of secondary teeth are formed on each single-side secondary stator at intervals; secondary tooth grooves are formed between the secondary teeth; a yoke part is formed at the bottom of the secondary tooth groove; the secondary teeth comprise first secondary teeth and second secondary teeth; the first secondary teeth and the secondsecondary teeth are arranged at intervals, the polar distances of the secondary teeth between the first secondary teeth and the second secondary teeth are the same, and the widths and the heights ofthe first secondary teeth are different from those of the second secondary teeth, so that the linear motor effectively reduces the positioning force and increases the thrust of the motor.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a permanent magnet linear motor with low positioning force bilateral magnetic flux switching. Background technique [0002] At present, with the development of industrial technology, the application of linear motors as driving motors in rail transit, numerical control machine tools, and vertical lifts has become more and more a technical hotspot in the industry. The long secondary of bilateral flux switching permanent magnet linear motors is only composed of magnetically conductive materials, and the primary is only composed of armature windings and magnetically conductive materials. It has the advantages of high reliability, simple structure, and is suitable for long-stroke conditions. The switching motor adopts a double salient pole structure. When the air gap flux density increases, the positioning torque problem becomes more and more serious, and there are problems such as low...

Claims

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Application Information

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IPC IPC(8): H02K41/03
CPCH02K41/031H02K2201/03H02K2201/15H02K2213/03
Inventor 闻程刘君宇刘靖纳杜巍王晶刘晋
Owner SHIJIAZHUANG TIEDAO UNIV
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