Columnar giant magnetostrictive telescopic energy harvester

Abstract

The invention discloses a columnar giant magnetostrictive telescopic energy harvester. A balance weight, a screw, an L-shaped lever, a hinge support, a supporting shaft and a bearing form a vibration picking amplification mechanism, wherein the L-shaped lever is installed on the hinge support through the supporting shaft and the bearing, and the balance weight is fixed to a tray at one end of the L-shaped lever. When a base is impacted by vibration, the balance weight on the L-shaped lever will vibrate vertically under the action of inertial force, so that the L-shaped lever swings around the supporting shaft, and transmits and amplifies pressure to an input ejection rod, then a spherical pressing head of the input ejection rod acts on a giant magnetostrictive telescopic rod, and the giant magnetostrictive telescopic rod is compressed and deformed. Due to the facts that the villari effect of giant magnetostrictive telescopic materials generates vibration of magnetic induction intensity, and then the changed magnetic field generates induced electromotive force in a closed coil based on the electromagnetic induction principle, electricity is output. The columnar giant magnetostrictive telescopic energy harvester is small in size, light in weight, high in energy conversion efficiency, reliable in work, long in service life, and suitable for supplying power to micro mechanical and electrical equipment.

Description

technical field [0001] The invention relates to an energy harvesting device, in particular to a columnar giant magnetostrictive energy harvester, and belongs to the technical field of new energy sources. Background technique [0002] In recent years, due to the excessive use of fossil energy on the earth, many problems such as energy crisis, air pollution, greenhouse effect and climate change have been caused. Therefore, researchers from various countries have begun to look for various alternative green energy sources, such as solar energy, hydropower, wind energy, and geothermal energy. , tidal energy, ocean temperature difference and vibration energy, etc. Because vibration energy is not affected by weather factors and seasons, it is very common in the living environment, and it can be converted into electrical energy with appropriate capture devices. Devices that can capture energy from the environment are called energy harvesters. Become a new energy harvesting research...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem of low conversion efficiency of existing vibration energy harvesting devices based on low-amplitude vibrations, and proposes a high-efficiency columnar giant magnetostrictive energy harvester

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