Electromagnetic type vibration generator

Abstract

The invention provides an electromagnetic type vibration generator. The core components of the vibration generator comprise magnet yokes, a vibration shaft and a shaft bossing. The vibration shaft, the left magnet yoke and the right magnet yoke from a closed magnetic circuit. The electromagnetic type vibration generator can be used for vibration generating under conditions of low frequency and large displacement. The magnet yoke portions are formed by laminating DW465-50 type silicon steel plates, and a closed magnetic circuit is formed, and therefore magnetic leakage amount is greatly reduced. The magnetic induction intensity maximum value of the interiors of the magnet yokes is 1.33 T, and the magnetic field utilization rate is 90.48%. The effect of the shaft bossing structure is to prevent a bearing from rotating during the vibration process of the vibration generator, and the rotation of the bearing during the vibration process of the vibration generator leads the magnetic circuit to be asymmetric. The vibration generator limits a permanent magnet and the magnet yokes by utilizing a linear bearing, and the influence of the magnetic force effect on generator vibration is reduced. The electromagnetic type vibration generator is suitable for vibration the frequency of which is in a range from 5Hz to 10 Hz and the displacement of which is in a range from 10 mm to 20 mm, and the electromagnetic type vibration generator is advantaged by being high in magnetic field utilization rate and simple to assemble, and being firm and reliable.

Description

technical field [0001] The invention relates to a device for converting vibrational mechanical energy into electric energy, in particular to a permanent magnet vibration power generation device, the core part of which is a permanent magnet vibration shaft, a yoke, and a shaft hub. The vibrating generator can form a closed magnetic circuit, significantly reduce leakage magnetic flux, and has higher output power at low frequency. technical background [0002] Electromagnetic vibration generator is a power generation device that converts environmental vibration energy into electrical energy by using the law of electromagnetic induction. It has the advantages of large power generation and easy maintenance. [0003] According to the different vibrating parts, electromagnetic vibration generators can be divided into three types: moving iron (magnet vibration), moving coil (coil vibration) and iron ring co-vibration (magnetic coil vibration). The moving iron type means that the co...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the existing problems of existing vibration generators, a new type of electromagnetic vibration generator is designed considering the vibration under the condition of low frequency and large displacement.

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