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Flux reverse planar motor

A magnetic flux reversal, planar motor technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of complex structure, small range of motion, low utilization rate of windings, etc., to achieve high thrust density, high utilization rate, The effect of simple structure

Active Publication Date: 2013-02-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of complex structure, small range of motion and low utilization of windings existing in existing planar motors, the present invention designs a magnetic flux reversal planar motor

Method used

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specific Embodiment approach 1

[0027]DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 1. The magnetic flux reversal planar motor described in this embodiment is composed of a primary, a secondary and an air gap. The primary is composed of one or more primary units, and each primary unit includes a primary unit core, a primary winding 3 and a permanent magnet4;

[0028] The secondary includes a secondary iron core 5, and a plurality of mutually perpendicular slots are formed on the air gap side of the secondary iron core 5 along the X direction and along the Y direction, so that the surface of the air gap side of the secondary iron core 5 forms a matrix arrangement of secondary The distance between the centers of adjacent secondary teeth along the X direction or along the Y direction is the tooth pitch τ of the secondary teeth p ;

[0029] The primary unit core 2 is in the shape of a flat plate, and slots perpendicular to each other are formed on the side facing the air gap along the X direction and along ...

specific Embodiment approach 2

[0039] Specific Embodiment 2. The magnetic flux reversal planar motor described in this embodiment is composed of a primary, a secondary and an air gap. The primary is composed of one or more primary units, and each primary unit includes a primary unit core, a primary winding 3 and a permanent magnet4;

[0040] The secondary includes a secondary iron core 5, and a plurality of mutually perpendicular slots are formed on the air gap side of the secondary iron core 5 along the X direction and along the Y direction, so that the surface of the air gap side of the secondary iron core 5 forms a matrix arrangement of secondary The distance between the centers of adjacent secondary teeth along the X direction or along the Y direction is the tooth pitch τ of the secondary teeth p ;

[0041] The primary unit core 2 is in the shape of a flat plate, and there are mutually perpendicular slots along the X direction and along the Y direction on the side facing the air gap, so that the air ga...

specific Embodiment approach 3

[0049] Specific Embodiment Three. The magnetic flux reversal planar motor described in this embodiment is composed of a primary, a secondary and an air gap. The primary is composed of several primary units, and each primary unit includes a primary unit core, a primary winding 3, and a permanent magnet 4. And magnetic block 6;

[0050] The secondary includes a secondary iron core 5, on the side of the air gap of the secondary iron core 5, there are slots perpendicular to each other along the X direction and along the Y direction, so that the surface of the air gap side of the secondary iron core 5 forms secondary teeth arranged in a matrix , the distance between the centers of adjacent secondary teeth along the X direction or along the Y direction is the pitch τ of the secondary teeth p ;

[0051] The primary unit core 2 is in the shape of a flat plate, and slots perpendicular to each other are formed on the side facing the air gap along the X direction and along the Y directi...

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Abstract

The invention relates to a flux reverse planar motor belonging to the technical field of motors and solving the problems of complex structure, small motion range and low winding utilization ratio of the traditional planar motor. The flux reverse planar motor is characterized in that primary teeth of a primary core and secondary teeth of a secondary core are all arranged in a matrix shape; the endsurface of each primary tooth is divided into 2n*2n cells, parallelly magnetizing permanent magnets are fixed in the cells with adjacent opposite angles, and a magnetizing direction is perpendicular to the surface of the primary tooth; or one permanent magnet is embedded between every two adjacent cells along X and Y directions, the permanent magnet positioned on the periphery of the same cell magnetizes the cell so that the cell generates a magnetic field perpendicular to the surface of the primary tooth, a plurality of cells positioned on each primary tooth are only adjacent in the oppositeangles; or the end surface of each primary tooth is divided into m*m cells, permanent magnets and magnetic conducting blocks are sequentially alternatively fixed in the cells with adjacent opposite angles; and the permanent magnets all have same magnetizing directions. The flux reverse planar motor disclosed by the invention is in a dynamically primary or secondary structure.

Description

technical field [0001] The invention relates to a planar motor and belongs to the field of motors. In particular, it relates to a planar motor with high thrust density. Background technique [0002] Modern precision and ultra-precision processing equipment has an urgent need for high-response, high-speed, high-precision planar drive and linear rotary drive devices, such as machining, electronic product production, mechanical loading and unloading, machining, manufacturing automation instrumentation equipment, and even robot drives Wait. Usually these devices are powered by a rotary motor, and then the rotary power generated by the motor is converted into linear motion by mechanical devices such as belts and ball screws. Due to the complex structure of the mechanical device, the transmission accuracy and speed are limited, and frequent adjustments are required, which have the disadvantages of high cost, poor reliability, large volume, and complicated maintenance. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K41/03
Inventor 寇宝泉谢大纲张鲁张赫
Owner HARBIN INST OF TECH