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Double-edge staggered teeth flat type flux switching permanent magnet linear motor

A permanent magnet linear motor and magnetic flux switching technology, which is applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of large magnetic flux leakage at the yoke of the primary core and low utilization rate of permanent magnets

Inactive Publication Date: 2013-09-11
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of the existing magnetic flux switching permanent magnet linear motors such as large leakage of primary iron core yoke and low utilization rate of permanent magnets, the present invention proposes a bilateral staggered tooth plate type flux switching permanent magnet linear motor

Method used

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  • Double-edge staggered teeth flat type flux switching permanent magnet linear motor
  • Double-edge staggered teeth flat type flux switching permanent magnet linear motor
  • Double-edge staggered teeth flat type flux switching permanent magnet linear motor

Examples

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Embodiment 1

[0028] Example 1: Combining figure 1 , figure 2 and image 3 To illustrate this embodiment, the double-sided staggered-tooth flat-plate flux switching permanent magnet linear motor of this embodiment includes a primary 1 , a first secondary 2 and a second secondary 3 . The primary 1 is composed of several sandwich modules, and each sandwich module is composed of two primary core teeth 1-1 and 1-2, a permanent magnet 1-3 and an armature winding 1-4. The permanent magnet 1-3 is located between two magnetically permeable primary core teeth 1-1 and 1-2, forming a sandwich structure. The permanent magnets on adjacent sandwich structures have opposite magnetization directions. There is a through slot between two adjacent interlayer modules formed by permanent magnets and iron cores, and the armature windings 1-4 are in the through slot.

[0029] The first secondary 2 and the second secondary 3 are respectively located on both sides of the primary 1, and they are strip-shaped m...

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Abstract

The invention provides a double-edge staggered teeth flat type flux switching permanent magnet linear motor and belongs to the technical field of motors. The double-edge staggered teeth flat type flux switching permanent magnet linear motor comprises a primary part and two secondary parts. In the primary part, a permanent magnet body is arranged between two magnet guiding primary iron core teeth to form a sandwich structure, magnetizing directions of the permanent magnet bodies on two adjacent sandwich structures are opposite, through grooves are formed between the sandwich structures, and armature windings are arranged in the through grooves. The two secondary parts are arranged on two sides of the primary part and are both magnet guiding iron cores of tooth socket structures. Secondary teeth on one side of the primary part and opposite secondary teeth on the other side of the primary part are staggered in position to form a structure with teeth of one secondary part corresponding to grooves of the other secondary part. During work of the double-edge staggered teeth flat type flux switching permanent magnet linear motor, along with changing of the relative positions of the primary part and the secondary parts on two sides, a flux changes the path, and the maximum flux with a winding turn chain in each groove is generated by three adjacent permanent magnets. The double-edge staggered teeth flat type flux switching permanent magnet linear motor can improve utilization rate of the permanent magnet bodies, improves thrust density and removes one-side magnetic pull.

Description

technical field [0001] The invention belongs to the field of motors, and in particular relates to a double-sided staggered-tooth plate type magnetic flux switching permanent magnet linear motor. Background technique [0002] The traditional linear motion is mostly realized by using a rotating motor to convert the rotary motion into a linear motion through a synchronous belt, a reduction gear, and a ball screw. This system has complex intermediate transmission mechanisms, complex system structure, and limited dynamic performance. Now, the direct transmission technology based on linear motors has been applied in linear motion occasions such as machine tools and elevators without the intermediate complex transmission mechanism, and its application fields are gradually expanding to various fields of production and life. Among them, the armature winding and the permanent magnet of the magnetic flux switching doubly salient permanent magnet linear motor are located in the primary,...

Claims

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Application Information

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IPC IPC(8): H02K41/02H02K1/34H02K1/12
Inventor 黄旭珍周波陈琦魏佳丹
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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