Linear-rotating low-speed cylinder power generator

Abstract

The invention discloses a linear-rotating low-speed cylinder motor, and relates to a motor technology suitable for low-speed wave power generation. The linear-rotating low-speed cylinder power generator comprises a stator, a rotor and a mover which are installed from outside to inside and are mutually separated by air gaps, wherein the stator comprises a stator iron core formed by laminating a plurality of U-shaped silicon steel sheets, stator permanent magnets inserted into the middles of the stator iron cores and radially and alternately magnetized along the circumference, and stator windings wound on the stator iron cores and the stator permanent magnets, the rotor comprises a plurality of discrete rotor iron cores, rotor permanent magnets alternately magnetized in the radial direction are attached to the inner wall of each rotor iron core, the mover is made of a whole soft magnetic material, and a plurality of convex teeth distributed in the axial direction are arranged on the peripheral wall face of the mover. Compared with a traditional cylinder motor, the motor of the invention is simple in heat dissipation and machining, longer in stroke and lower in cost, particularly, the flux linkage frequency of a turn chain in the stator winding is higher than the linear motion frequency of the rotor, and the frequency amplification function is achieved.

Description

technical field [0001] The present application relates to the technical field of motors, in particular to a linear-rotating low-speed cylindrical generator. Background technique [0002] The traditional direct-drive wave power generation system generally uses a traditional cylindrical linear motor with a short stroke, which directly converts the kinetic energy of the linear reciprocating motion of the mover into the primary winding to generate electrical energy for external power generation. Due to the low motion speed of the sea waves, the frequency of the generated alternating current is low, which increases the subsequent rectification loss. Simultaneously, the reciprocating motion stroke of sea wave is long, can't make full use of its kinetic energy. However, considering the mechanical strength, processing difficulty and manufacturing cost, the pole distance of the mover cannot be further reduced, it is difficult to increase the frequency, and the stroke of the mover ...

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a linear-rotary low-speed cylindrical generator to solve the problems of low operating frequency and effective stroke in the related art

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