Piezoelectric and electromagnetic composite energy annular capturing device

Abstract

The invention discloses a piezoelectric and electromagnetic composite energy annular capturing device, which comprises an annular pipe, two annular connecting pieces, an annular cover, three magnetic balls, a coil and a piezoelectric cantilever beam; the piezoelectric cantilever beam comprises a mass block permanent magnet, an elastic substrate and a piezoelectric ceramic fiber sheet; one end of the piezoelectric cantilever beam is fixed on the annular pipe through the annular cover, the other end of the piezoelectric cantilever beam comprises the mass block permanent magnet and is in a free state, the annular cover is connected with the annular pipe through the two annular connecting pieces, the coil is wound on the annular pipe, and the magnetic ball is placed in the annular pipe. When the magnetic balls slide in the annular pipe, the piezoelectric ceramic fiber sheet is excited through the magnetic force action of the magnetic balls and the mass block permanent magnets, and electric energy is output through the electromagnetic induction phenomenon generated through the relative movement of the magnetic balls and the coils. According to the device, surrounding vibration energy can be converted into electric energy through piezoelectric and electromagnetic effects; The piezoelectric and electromagnetic composite energy annular capturing device is suitable for capturing vibration energy generated during human body movement.

Description

technical field [0001] The invention belongs to the technical field of vibration energy capture, and in particular relates to a piezoelectric and electromagnetic composite energy ring capture device. Background technique [0002] With the continuous development of semiconductor devices and integrated circuit technology, smart technology can also be combined with wearable devices to form a unique network that depends on the human body. We hope that various wearable devices can enhance the perception of our own human body. Stimulated by the demand in many fields and the rapid development of Internet +, Huawei, Apple, Xiaomi, Sony and many other electronic equipment business giants have set their sights on wearable devices and regard them as the commanding heights of future electronic business competition. However, the disadvantages of power supply problems caused by the increasing power consumption of these wearable devices in the application of various functions are becoming ...

AI Technical Summary

Problems solved by technology

Therefore, it is urgent to solve the problems of power supply life and bulky batteries of wearable devices.

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