Double-permanent-magnet lateral magnetic flux linear permanent magnet motor

Abstract

The invention discloses a double-permanent-magnet lateral magnetic flux linear permanent magnet motor, and the motor comprises a primary mechanism and a secondary mechanism. The primary mechanism comprises a plurality of primary units in the same structure, and each primary unit comprises a magnetic conduction part and an armature winding. The magnetic conduction part is provided with three projection parts: a main magnetic tooth and auxiliary magnetic teeth located at two sides of the main magnetic tooth. The armature winding is wound around the periphery of the main magnetic tooth. The secondary mechanism comprises a permanent magnet fixing plate and a permanent magnet matrix, wherein the permanent magnet matrix comprises a plurality of permanent magnets which are arranged in parallel. The two rows of permanent magnets are sequentially fixed at two sides of the permanent magnet fixing plate in a one-one corresponding manner. There are gaps between the magnetic conduction part and the permanent magnets. The motor can achieve a purpose that one iron core lamination is corresponding to two parallel magnetic flux loops of one armature winding, is simple in structure, is short in each magnetic loop, is higher in force density, and is smaller in output force fluctuation. The shorter magnetic loop can reduce the eddy-current loss of the motor, improves the efficiency of the motor, and improves the utilization rate of the permanent magnets.

Description

technical field [0001] The invention relates to a double permanent magnet transverse magnetic flux linear permanent magnet motor. Background technique [0002] The motion direction of the transverse flux linear permanent magnet motor is perpendicular to the plane where the motor magnetic field path is located. The motor circuit and the motor magnetic circuit are relatively independent. Compared with the traditional motor, the transverse flux motor has high torque density, flexible design, and low electromagnetic load. With the characteristics of decoupling, convenient control, and excellent low-speed characteristics, its application fields are also expanding, especially suitable for low-speed and high-power drive occasions. The transverse flux motor greatly shortens the length of the magnetic circuit, reduces the amount of ferromagnetic materials and iron loss. , within a certain range, the rate of change of magnetic energy is increased, thereby increasing the output of the ...

AI Technical Summary

Problems solved by technology

[0003] The thrust of conventional transverse flux linear permanent magnet motors can be greater than that of ordinary linear motors. However, as the thrust of the motor increases, the output force pulsation also increases. In addition, the general transverse flux linear permanent magnet motor has a complex structure and is difficult to process and assemble.

The general flat-plate transverse flux linear permanent magnet motor still has the problem of unilateral magnetic pull, and the general double-sided transverse flux linear permanent magnet motor is laborious to process and assemble.

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