Modularized magnetic flux switching linear motor based on common coil bidirectional excitation unit

Abstract

The invention provides a modular magnetic flux switching linear motor based on a common coil bidirectional excitation unit. The modular magnetic flux switching linear motor comprises a motor primary structure; the motor primary structure comprises a plurality of primary modules with the same structure; each primary module comprises 2n units, the magnetizing directions of the permanent magnets in the two adjacent units of the same primary module are opposite, the 2n units of the same primary module share one centralized armature coil, and when the number of the armature coils contained in each phase of armature winding of the motor is an odd number or an even number, even-order harmonics of induced electromotive force are not contained.

Description

technical field [0001] The invention belongs to the technical field of linear motors, in particular to a modular magnetic flux switching linear motor based on a shared coil bidirectional excitation unit. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The armature winding and permanent magnet of the traditional permanent magnet synchronous linear motor are respectively placed in the primary and secondary of the motor. With the increase of the motor formation, regardless of the long secondary structure or the long primary structure, the processing and manufacturing cost of the motor will increase sharply , Therefore, limited by the cost of the motor, the current application of permanent magnet synchronous linear motors is limited to the short-stroke field. In the primary excitation type permanent magnet linear motor, the permanent magnets ...

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Problems solved by technology

[0003] The armature winding and permanent magnet of the traditional permanent magnet synchronous linear motor are respectively placed in the primary and secondary of the motor. With the increase of the motor formation, regardless of the long secondary structure or the long primary structure, the processing and manufacturing cost of the motor will increase sharply , therefore, limited by the cost of the motor, the current application of permanent magnet synchronous linear motors is limited to the field of short strokes

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