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Primary and secondary yoke-free permanent-magnetic linear synchronous motor with double-side secondary structure

A permanent magnet linear synchronization, secondary structure technology, applied in electrical components, electromechanical devices, electric components, etc., can solve the problem of low thrust density, achieve increased thrust density, good dynamic response performance, armature magnetomotive force added effect

Active Publication Date: 2019-05-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of low thrust density of the existing permanent magnet linear synchronous motor, the present invention further proposes a permanent magnet linear synchronous motor with primary and secondary yokeless bilateral secondary structures

Method used

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  • Primary and secondary yoke-free permanent-magnetic linear synchronous motor with double-side secondary structure
  • Primary and secondary yoke-free permanent-magnetic linear synchronous motor with double-side secondary structure
  • Primary and secondary yoke-free permanent-magnetic linear synchronous motor with double-side secondary structure

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specific Embodiment approach 1

[0017] Specific implementation mode one: combine figure 1 Describe this embodiment, the permanent magnet linear synchronous motor with primary and secondary yokeless bilateral secondary structures described in this embodiment, it includes a primary 1 and a secondary 2, and the secondary 2 includes an upper secondary 21 and a lower secondary 22 , the upper secondary 21 is set above the primary 1, and the next secondary 22 is set below the primary 1; the primary 1 includes 2M+1 magnetic teeth 11 and M coils 12, and the 2M+1 magnetic teeth 11 are from the left Arranged side by side in parallel to the right, and 2M+1 magnetic teeth 11 are numbered from left to right as No. 1 magnetic tooth, No. 2 magnetic tooth, No. 3 magnetic tooth, ..., 2m+1 No. The magnetic tooth, the mth magnetic permeable tooth 11 is covered with a coil 12, the said M is a natural number, the number is 1, 2, 3...m, and the said m is a sequence of natural numbers 1, 2, 3.... m. The positive and negative sign...

specific Embodiment approach 2

[0019] Specific implementation mode two: combination figure 2 Describe this embodiment, the permanent magnet linear synchronous motor with primary and secondary yokeless bilateral secondary structures described in this embodiment, it includes a primary 1 and a secondary 2, and the secondary 2 includes an upper secondary 21 and a lower secondary 22 , the upper secondary 21 is set above the primary 1, and the next secondary 22 is set below the primary 1; the primary 1 includes 2M+1 magnetic conductive teeth 11, 2M coils 12 and 2M brackets 13, 2M+1 conductive The magnetic teeth 11 are arranged side by side in parallel from left to right, and the 2M+1 magnetic teeth 11 are numbered from left to right as No. 1 magnetic tooth, No. 2 magnetic tooth, No. 3 magnetic tooth, ..., No. 2m+1 magnetic tooth, two coils 12 are set on the mth magnetic tooth 11, all the upper coils belong to a coil group, and all the lower coils belong to a coil group, the two coil groups can be connected in se...

specific Embodiment approach 3

[0021] Specific implementation mode three: combination figure 1 and figure 2 To illustrate this embodiment, the magnetically conductive teeth 11 of the permanent magnet linear synchronous motor with primary and secondary yokeless bilateral secondary structures described in this embodiment are composed of a plurality of silicon steel sheets superimposed. Other compositions and connections are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a primary and secondary yoke-free permanent-magnetic linear synchronous motor with a double-side secondary structure, and relates to the field of motor equipment. The motor comprises primary and secondary sides, the secondary side comprises upper and lower secondary sides, the upper secondary side is arranged over the primary side, the lower secondary side is arranged under the primary side; the primary side comprises 2m+1 magnetic conductive teeth and m coils, the 2m+1 magnetic conductive teeth are arranged side by side in parallel from left to right successively andnumbered as first, second, third to (2m+1)th magnetic conductive teeth successively, and the mth magnetic conductive tooth is sleeved by a coil. Secondary permanent magnets are arranged in a Halbach manner, secondary back iron is cancelled, the air gap flux density can be improved substantially, and the motor thrust is improved. The secondary permanent magnets arranged in the Halbach manner and the primary magnetic conductive teeth for a serial magnetic circuit, the installation space of an armature winding is increased, and the thrust density of the motor can be improved greatly.

Description

technical field [0001] The invention relates to a permanent magnet linear synchronous motor, in particular to a permanent magnet linear synchronous motor with primary and secondary yokeless bilateral secondary structures, belonging to the field of motor equipment. Background technique [0002] In recent years, with the continuous improvement and improvement of the performance of rare earth permanent magnet materials, as well as the gradual reduction of prices, coupled with the gradual maturity of research and development experience in permanent magnet linear synchronous motors, permanent magnet linear synchronous motors have been widely used in aerospace, national defense, industry and agriculture and It is widely used in daily life. Compared with other linear motion devices driven by non-linear motors, the linear motion system composed of permanent magnet linear synchronous motors has a series of advantages such as simple structure, high reliability, fast response speed, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/03
Inventor 王骞郭言李勇胡建辉
Owner HARBIN INST OF TECH
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