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Linear motor

A technology of linear motors and permanent magnets, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of large lateral size of linear motors, and achieve the effect of reducing volume, reducing lateral size, and improving thrust density

Pending Publication Date: 2019-06-21
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a linear motor to solve the problem of large lateral dimensions of linear motors in the prior art

Method used

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Embodiment Construction

[0032] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0033] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0034] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present ...

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Abstract

The present invention provides a linear motor. The linear motor comprises: iron cores, wherein the iron cores are arranged at intervals in the length direction of the linear motor, each iron core comprises a groove, and the two sides of each groove have teeth portions; and windings, wherein the windings are in staggered arrangement at the teeth portions at the two sides of the grooves in the length direction of the linear motor. The linear motor mover iron cores employ two-sided door-shaped structures, sets of winding coils are winded on the teeth portions at one sides of the iron cores to form armature windings, the three winding coils are distributed in a staggered mode in order in the length direction of the linear motor to facilitate reduce the lateral dimension of the linear motor soas to reduce the volume of the linear motor and improve the thrust density.

Description

technical field [0001] The present invention relates to the technical field of drive devices, in particular to a linear motor. Background technique [0002] Compared with rotary motors, linear motors have the characteristics of large thrust, fast response, low power consumption, and simple structure. They are widely used in high-end CNC machine tools, chip manufacturing and other high-precision feed systems. [0003] The primary iron core of the traditional unilateral linear motor is located on one side of the secondary permanent magnet, and there is a normal suction force of 5-10 times the thrust value. In order to overcome the normal suction force, the researchers proposed a bilateral linear motor. The motor makes the normal suction generated by one side of the motor cancel each other, but due to the increase in the number of primary stages, the longitudinal size of the motor is doubled compared with the original size, and the installation accuracy between the two primary ...

Claims

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Application Information

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IPC IPC(8): H02K41/02H02K41/03
Inventor 郑立章谢芳焦雷刘伟健郜曦肖智勇张智超赖奕霖张海斌刘建国
Owner GREE ELECTRIC APPLIANCES INC