Permanent magnet linear synchronous motor with primary and secondary yokeless bilateral secondary structures

A permanent magnet linear synchronization, secondary structure technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problem of low thrust density, and achieve the advantages of increasing thrust density, reducing iron loss of motor, and reducing system cost. Effect

Active Publication Date: 2021-02-09
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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  • Permanent magnet linear synchronous motor with primary and secondary yokeless bilateral secondary structures
  • Permanent magnet linear synchronous motor with primary and secondary yokeless bilateral secondary structures
  • Permanent magnet linear synchronous motor with primary and secondary yokeless bilateral secondary structures

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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. magnetic Coils 12 are set on the m-th magnetically permeable teeth 11. The M is a natural number, numbered 1, 2, 3...m, and the m is a sequence of natural numbers 1, 2, 3...m. The positive and negative signs on the coil indicate the dir...

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 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 + No. 1 magnetic tooth, the mth magnetic tooth 11 is covered with two coils 12, all the upper coils belong to a coil group, and all the lower coils belong to a coil group, and the two coil groups can be connecte...

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 primary and secondary yokeless permanent magnet linear synchronous motor with bilateral secondary structure relates to the field of motor equipment. The present invention includes a primary and a secondary, the secondary includes an upper secondary and a lower secondary, the upper secondary is set above the primary, and the next secondary is set below the primary; the primary includes 2m+1 magnetically conductive teeth and m coils , 2m+1 magnetic teeth are arranged side by side in parallel from left to right, and 2m+1 magnetic teeth are numbered from left to right as No. 1 magnetic tooth, No. 2 magnetic tooth, No. 3 magnetic tooth, ......, No. 2m+1 magnetic conducting tooth, the m No. magnetic conducting tooth is sleeved with a coil. The secondary permanent magnet adopts the Halbach arrangement, which can significantly increase the air gap flux density while eliminating the secondary back iron, thereby increasing the thrust of the motor. The secondary permanent magnets in the Halbach arrangement and the primary magnetic teeth form a series magnetic circuit, and the installation space of the armature winding is increased, which can significantly increase the thrust density of the motor.

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 Patents(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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