Double-stator rotor-yoke-free oriented silicon steel sheet permanent magnet linear motor

A technology of permanent magnet linear motor and oriented silicon steel, which is applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems that have not been progressed, and achieve the suppression of tooth tip magnetic flux leakage, suppression of magnetic circuit asymmetry, and improvement of air gap The effect of magnetic energy

Pending Publication Date: 2018-06-01
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, many scholars at home and abroad focus on how to optimize the thrust performance of this type of linear motor, and propose methods such as concentrated winding structures and high-performance perm

Method used

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  • Double-stator rotor-yoke-free oriented silicon steel sheet permanent magnet linear motor
  • Double-stator rotor-yoke-free oriented silicon steel sheet permanent magnet linear motor
  • Double-stator rotor-yoke-free oriented silicon steel sheet permanent magnet linear motor

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Embodiment Construction

[0031] The invention provides an overall structure of a permanent magnet linear motor with oriented silicon steel sheet with dual stators and no mover yoke. figure 1 As shown, a U-shaped double stator 1 is formed by using a double stator and a bottom plate. Two rows of permanent magnets 2 are installed on both sides of the inner wall of the U-shaped double stator 1, and two guide rails 5 are installed on the top. The permanent magnets on both sides are arranged correspondingly and magnetized in different directions, and the same row of permanent magnets and adjacent permanent magnets are also magnetized in different directions. The mover bearing plate 4 is in an inverted U shape, and there is a groove on the left and right sides. The groove passes through the guide rail 5 on the stator to form a sliding connection between the mover bearing plate 4 and the U-shaped stator 1. A position sensor 6 is installed on one side of the outer wall of the mover weighing plate 4 to improve th...

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Abstract

The invention provides a double-stator rotor-yoke-free oriented silicon steel sheet permanent magnet linear motor. The permanent magnet linear motor comprises U-shaped double stators, a rotor iron core and a rotor bearing plate. The U-shaped double stators have a U-shaped structure formed by two vertical plates and one transverse plate. Two rows of permanent magnets are installed on the internal walls of the two side vertical plates of the U-shaped structure. A guide rail is installed on the top part of each side vertical plate. The double-stator double-air-gap structure is used, and the rotoruses the iron core structure so that the air gap magnetic co-nergy can be enhanced and the thrust density of the motor can be effectively increased. Besides, the anisotropic magnetic performance of the oriented silicon steel sheets and the magnetic circuit characteristics of the motor are combined, and the magnetic line direction of the rotor teeth and the high magnetic performance direction of the rolling direction of the oriented silicon steel sheets are consistent; and the characteristic of great magnetic performance of the rolling direction of the oriented silicon steel sheets is utilized, the saturation working point can be enhanced and the magnetomotive force produced by the stator current can be increased so that the stator tooth magnetic flux density and the air gap magnetic fluxdensity can be enhanced and the objective of enhancing the thrust density under the unit volume of the linear motor can be achieved.

Description

Technical field: [0001] The invention belongs to the technical field of motors, and specifically relates to a permanent magnet linear motor structure with oriented silicon steel sheets with dual stators and no mover yoke. Background technique: [0002] The iron core linear motor is a winding coil on a silicon steel sheet. It is widely used in high-speed CNC machining center cores, vertical lifting conveyor systems, high-speed ground transportation systems, reciprocating air compressors and other fields. It can provide high rapid response capabilities and move more quickly. Heavy load, and the rigidity can be guaranteed during machining or thrusting. [0003] In the application of this type of motor, thrust density is one of the most important performance indicators. It is hoped that a smaller volume can output higher thrust and at the same time have smaller thrust fluctuations. Therefore, many scholars at home and abroad have focused on how to optimize the thrust performance of th...

Claims

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Application Information

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IPC IPC(8): H02K41/03
CPCH02K41/031
Inventor 董婷彭兵魏学鹏张愿
Owner SHENYANG POLYTECHNIC UNIV
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