Secondary short magnetic circuit bilateral type primary permanent magnet type transverse magnetic flux linear motor

Abstract

The invention discloses a secondary short magnetic circuit bilateral type primary permanent magnet type transverse magnetic flux linear motor which includes a primary mechanism and a secondary mechanism. The primary mechanism includes two sets of primary units with the same structure. Each primary unit includes n+1 U-shaped primary magnetically permeable components, n armature windings, and n permanent magnets. The primary magnetically permeable components are arranged in a row in sequence. n permanent magnets are spaced between adjacent primary magnetically permeable components. The teeth ofadjacent primary magnetically permeable components are connected by the permanent magnets to form magnetic poles. The armature windings are wound on the magnetic poles. Two sets of primary units are oppositely arranged. The secondary mechanism includes a plurality of secondary magnetically permeable components. All secondary magnetically permeable components are located between two sets of primaryunits and alternately arranged in sequence along the movement direction of the motor. According to the linear motor, the permanent magnets and the windings are located on the primary side at the sametime, and the phases are isolated and decoupled; and the linear motor has the excellent characteristics of electromagnetic independence, high torque density, flexible design, convenient control, andsimple and reliable secondary side structure.

Description

technical field [0001] The invention belongs to the technical field of motor structure, and in particular relates to a secondary short magnetic circuit bilateral type primary permanent magnet transverse flux linear motor. Background technique [0002] When the linear motor drives the linear motion load, the conversion mechanism from the rotation to the linear motion of the rotary motor is omitted, so it has the advantages of simple overall structure, high position accuracy, fast response speed, and low noise, which improves the efficiency of the entire system. In recent years, with the application of linear drives more and more widely, linear motors have gradually become one of the hot spots of research and development, and have been widely used in military industry, aerospace, rail transportation, electromagnetic ejection and other fields. [0003] The motion direction of the transverse flux linear permanent magnet motor is perpendicular to the plane where the motor magneti...

AI Technical Summary

Problems solved by technology

However, if only the traditional bilateral symmetrical structure is adopted, the magnetic circuit will be symmetrical, and the secondary magnetic yoke will appear, and the iron core of the yoke will take up a large proportion, and the material consumption will be more

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