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Linear motor and optimization and verification method for improving operation efficiency of the same

A technology of linear motors and primary coils, applied in AC motor control, electrical components, electromechanical devices, etc., can solve the problems of low operating efficiency of linear motors and the influence of motor operating efficiency, and achieve simple structure, convenient operation, and suppression of thrust fluctuations Effect

Inactive Publication Date: 2016-04-20
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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AI Technical Summary

Problems solved by technology

In the prior art, the operating efficiency of linear motors is low, and the operating efficiency is limited by many factors, the most important being the influence of the thrust fluctuation of the motor on the operating efficiency of the motor
However, the existence of thrust fluctuations is inevitable, and only a series of measures can be taken to weaken the existence of fluctuations

Method used

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  • Linear motor and optimization and verification method for improving operation efficiency of the same
  • Linear motor and optimization and verification method for improving operation efficiency of the same
  • Linear motor and optimization and verification method for improving operation efficiency of the same

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Embodiment Construction

[0025] The specific implementation manner of the present invention will be described in further detail below by describing the best embodiment with reference to the accompanying drawings.

[0026] The cogging force is the force generated by the interaction between the permanent magnet and the iron core, and the cogging force exists even when the armature winding is not energized. The cogging force of a linear motor varies with the position between the motor's cogging and the permanent magnet, causing the thrust to fluctuate. The air gap permeability between the mover and the stator changes, and the magnetic field energy storage changes, thereby generating cogging force.

[0027] The linear motor of the present invention is a motor that can reduce thrust fluctuations and has small cogging force, such as figure 1 As shown, it includes primary iron core 1, primary coil 2, secondary iron core 3 and permanent magnet 4. The primary iron core 1 has a plurality of slots, and the prim...

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Abstract

The invention discloses a linear motor and an optimization and verification method for improving operation efficiency of the same, wherein the linear motor comprises a primary iron core (1), a primary coil (2), a secondary iron core (3) and a permanent magnet (4), the primary iron core (1) comprises a plurality of tooth grooves, the primary coil (2) winds the tooth among the adjacent tooth grooves, the secondary iron core (3) is arranged below the primary iron core to be a substrate of a given length, the permanent magnet (4) is fixedly arranged on the secondary iron core (3), and the ratio between the polar distance of the permanent magnet (4) and the tooth distance of the tooth groove is a fraction. The linear motor has a simple structure and can be stably and conveniently operated, and the thrust ripple can be reduced to a certain extent.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a linear motor and an optimization verification method for improving its operating efficiency. Background technique [0002] Linear motors are devices that convert electrical energy into linear reciprocating motion. In the prior art, the operating efficiency of the linear motor is low, and the operating efficiency is limited by many factors, the most important being the influence of the thrust fluctuation of the motor on the operating efficiency of the motor. However, the existence of thrust fluctuations is inevitable, and only a series of measures can be taken to weaken the existence of fluctuations. Therefore, the problem of suppressing thrust fluctuations needs to be solved urgently. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in the prior art, to provide a linear motor with simple structure, stable and convenien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/03H02P25/064
CPCH02K41/031H02P25/06
Inventor 陆华才缪碧云阮光正徐可邓晓玲李满华
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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