Permanent magnet linear generator, magnetorheological damper and magnetorheological damping system thereof

Abstract

The invention discloses a permanent magnet linear generator, a magnetorheological damper and a magnetorheological damping system. The permanent magnet linear generator comprises a stator, a connection rod and a plurality of permanent magnets; the stator comprises an accommodation chamber with a telescopic mouth; the inner wall of the accommodation chamber is provided with a plurality of convex teeth at intervals; two opposite sides of the top end of each convex tooth extend along an axial direction of the accommodation chamber to form side teeth; the convex teeth and the side teeth are made of a permeability material, and the adjacent convex tooth and side tooth form a groove for accommodating an electromagnetic coil; the connection rod is positioned in the accommodation chamber of the stator, and is provided with a first connection end extending out of the telescopic mouth; and the plurality of permanent magnets are connected with the connection rod, and a magnetic pole is arranged between the adjacent permanent magnets. By the design of the convex teeth and the side teeth, more magnetic force lines pass through an air gap to form a closed-loop circuit; the utilization rate of a permanent magnet magnetic field is improved; and a value of an induced electromotive force is increased, and the electricity generation rate is high.

Description

technical field [0001] The invention relates to the field of permanent magnet generators, in particular to a permanent magnet linear generator, and also to a magnetorheological damper and a magnetorheological damping system with the magnetorheological damper. Background technique [0002] Energy is a necessity for the survival and development of human society, and the rapidly developing economy makes energy crisis and environmental pollution become the international key words in the 21st century. How to alleviate the contradiction between economic development and energy and environment, new energy provides us with a new choice. With people's attention to new energy and the environment, permanent magnet linear generators that can directly use the mechanical vibration of objects to generate electricity have become a research hotspot. Vibration is everywhere, such as the movement of the piston, the shaking of the vehicle, the vibration generated when people walk, and even the ...

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Problems solved by technology

[0003] The problem solved by the invention is that the existing permanent magnet linear generator has low power generation efficiency and the problem that the utilization rate of the permanent magnet magnetic field is not high

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