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Double-sided permanent magnet linear synchronous motor

A permanent magnet linear synchronous motor technology, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems of limited thrust performance improvement and large fluctuations in motor thrust, and achieve small edge effects, large thrust, and weight reduction Effect

Inactive Publication Date: 2013-05-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve this problem, the existing technology is to consider fractional slots, inclined slots, and inclined poles, optimize the size structure of the primary pole, or design a control algorithm that can implement compensation; however, the existing technology has limited improvement in thrust performance, especially The thrust fluctuation of the motor due to the disconnection at both ends of the linear motor is still large

Method used

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  • Double-sided permanent magnet linear synchronous motor

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Embodiment 1

[0029] Such as figure 2 As shown, a bilateral permanent magnet linear synchronous motor includes left and right magnetic poles 1 and an armature 2 arranged between the magnetic poles 1 on both sides; the magnetic pole 1 is composed of a back iron 11 and a permanent magnet group arranged inside the back iron 11 , The armature 2 is assembled by two laminated iron cores 22, and a water-cooling pipeline 4 is arranged between the assembled surfaces of the two iron cores 22.

[0030] The two iron cores 22 are staggered by a certain distance L in the horizontal direction, and the magnetic poles 1 on both sides are flush in the horizontal direction; the permanent magnet group is composed of a plurality of N-pole permanent magnets 12 and a plurality of S-pole permanent magnets 13 arranged alternately; when When the magnetic poles 1 on both sides are flush in the horizontal direction, each N-pole permanent magnet of the left permanent magnet group is aligned with each N-pole permanent ...

Embodiment 2

[0037] Such as Figure 7 As shown, a bilateral permanent magnet linear synchronous motor includes left and right magnetic poles 1 and an armature 2 arranged between the magnetic poles 1 on both sides; the magnetic pole 1 is composed of a back iron 11 and a permanent magnet group arranged inside the back iron 11 , The armature 2 is assembled by two laminated iron cores 22, and a water-cooling pipeline 4 is arranged between the assembled surfaces of the two iron cores 22.

[0038] The magnetic poles 1 on both sides are staggered by a certain distance L in the horizontal direction, and the two iron cores 22 are flush in the horizontal direction; the permanent magnet group is composed of a plurality of N-pole permanent magnets 12 and a plurality of S-pole permanent magnets 13 arranged alternately; In the embodiment, the armature 2 is used as the stator, and the magnetic poles 1 on both sides are used as the mover. An armature winding 21 is sheathed on each tooth of the armature co...

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Abstract

The invention discloses a double-sided permanent magnet linear synchronous motor which comprises two magnetic poles arranged respectively on two sides and an armature between the two magnetic poles, and two laminated iron cores are assembled together to form the armature. The two magnetic poles are mutually staggered in the horizontal direction and the two iron cores are flushed with other in the horizontal direction, or the two iron cores are mutually staggered in the horizontal direction and the two magnetic poles are flushed with other in the horizontal direction. According to the double-sided permanent magnet linear synchronous motor, the number of iron core slots is greater than the number of the magnetic poles, the magnetic poles of the left side and the right side are mutually staggered or the two iron cores are mutually staggered, and end force is basically counteracted, so that thrust ripple is greatly weakened. The double-sided permanent magnet linear synchronous motor has the advantages of being convenient to regulate, easy to achieve, large in regulating scope, and convenient to install and maintain and the like. The double-sided permanent magnet linear synchronous motor is suitable for situations of high speed, high accuracy, high efficiency, and high thrust.

Description

technical field [0001] The invention belongs to the technical field of synchronous motors, in particular to a double-sided permanent magnet linear synchronous motor. Background technique [0002] The permanent magnet linear synchronous motor has the advantages of both the permanent magnet motor and the linear motor. It converts electrical energy directly into linear motion mechanical energy without the need for intermediate linkage parts and is not affected by centrifugal force. It has the advantages of simple structure, light weight, small size, high speed and high precision. , high efficiency, large thrust and other significant advantages, it has been widely used in high-speed CNC machine tools, semiconductor processing, vertical lifting conveying systems, high-speed ground transportation systems and other fields. Bilateral structure permanent magnet linear synchronous motor can be regarded as two unilateral structure permanent magnet linear synchronous motors back to back...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/03
Inventor 卢琴芬张新敏程传莹叶云岳
Owner ZHEJIANG UNIV
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