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Moving magnet-type cylindrical linear motor

A linear motor, moving magnet technology, applied in electrical components, electromechanical devices, electric components, etc., can solve problems such as excessive cogging positioning force, and achieve the effect of overcoming excessive cogging positioning force

Inactive Publication Date: 2011-02-02
青岛同日电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that it is necessary to provide a moving magnet type cylindrical linear motor to overcome the defect of excessive cogging positioning force due to the difficulty of inclined slots or inclined magnets

Method used

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  • Moving magnet-type cylindrical linear motor
  • Moving magnet-type cylindrical linear motor
  • Moving magnet-type cylindrical linear motor

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Embodiment Construction

[0031] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention.

[0032] figure 1 It is a schematic composition diagram of an embodiment of the moving magnet cylindrical linear motor of the present invention. Such as figure 1 As shown, this embodiment includes a primary 20 and a secondary 30, wherein the primary 20 is cylindrical for accessing multi-phase symmetrical current or square wave current, and the secondary 30 is sleeved on the outside of the primary 20 in the form of a ring, Magnetically coupled with the primary 20; after the primary 20 is connected to a multi-phase symmetrical current or a square wave current, a linear wave magnetic field interlinked with the permanent magnetic field of the secondary 30 is formed to gene...

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Abstract

The invention discloses a moving magnet-type cylindrical linear motor. The moving magnet-type cylindrical linear motor primarily consists of a winding, an iron core, a core shaft, a nonmagnetic guard shaft and the like; and the moving magnet-type cylindrical linear motor secondarily consists of a permanent magnet topology, an end cover, a linear bearing and a shell and is a movable structure, anda kinematic pair is formed by the linear bearing and the primary nonmagnetic guard shaft. The moving magnet-type cylindrical linear motor has the advantages of being capable of obviously improving motor thrust loading, and effectively inhibiting tooth space detent force by the non-uniform permanent magnet topology, primarily adsorbing no machined chips or iron chips and ensuring safe operation ofthe motor.

Description

technical field [0001] The invention relates to a motor, in particular to a moving magnet cylinder linear motor. Background technique [0002] Cylindrical linear motors mainly include permanent magnet synchronous and induction asynchronous linear motors, and their structures are mostly short primary and long secondary moving coil structures. [0003] The secondary of the permanent magnet synchronous linear motor is a strong magnetic component, which is easy to absorb ferromagnetic fragments, which affects the safe operation of the motor; the primary is an armature structure with iron core slots, which are traditionally reduced by chute or inclined magnetism. The cogging positioning force will also weaken the effective thrust at the same time, and the movement primary has cables, which affects the reliability of operation. The primary structure of the induction asynchronous linear motor is similar to that of the synchronous motor, and the secondary is a composite of conducti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K41/02H02K3/00
Inventor 姚万军吴虹周尔清
Owner 青岛同日电机有限公司
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