A magnetic suspension vibration energy capture battery

Abstract

The invention relates to a magnetic suspension vibration energy capture battery, which comprises a battery top cover, a battery shell, a hollow shaft, an internal spring, an external spring, a base, two identical piezoelectric cantilever beams and four identical magnetic washer, wherein that battery top cover and the battery shell constitute a battery sealing cavity; the piezoelectric cantilever beam, the magnetic washer, the internal spring and the hollow shaft constitute a piezoelectric power generation module; and the base and external spring are used for sensing and transmitting external vibrations. When the MEMS device where the device is arranged is subjected to external vibration, the battery vibrates continuously, and the internal piezoelectric power generation module in the battery maintains continuous vibration under the function of the internal spring and magnetic force of the magnetic washers, which improves the energy capture efficiency. The device is mainly used in MEMS,wireless sensors, intelligent wearable equipment and other fields, and has the advantages of simple structure, no need for maintenance, long life, energy saving and environmental protection, easy integration and strong environmental adaptability.

Description

technical field [0001] The invention belongs to the field of piezoelectric power generation, and in particular relates to a magnetic levitation vibration energy harvesting battery. Background technique [0002] With the development of micro-electro-mechanical systems (MEMS), wireless sensor network technology and their applications in aerospace, seabed detection, military industry, civil machinery, transportation and other fields. Traditional dry batteries, button batteries and lithium batteries have disadvantages such as troublesome replacement, short service life, poor environmental adaptability and pollution to the environment, so they cannot meet the needs of some MEMS and wireless sensor network nodes. The piezoelectric generating device can convert the mechanical energy of the vibration of the surrounding environment or the human body into electrical energy, and the piezoelectric generating device has a small structure, is easy to integrate, has no electromagnetic inte...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of troublesome replacement, short service life, poor environmental adaptability and environmental pollution of traditional dry batteries, button batteries and lithium batteries, a magnetic levitation vibration energy harvesting battery is proposed. The piezoelectric self-generating device is powered by the battery Cover, battery housing, hollow shaft, inner spring, outer spring, base, two identical piezoelectric cantilever beams and four identical magnetic washers

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