Isosceles trapezoid cantilever beam-based piezoelectric-electromagnetic energy capture device

Abstract

The invention discloses an isosceles trapezoid cantilever beam-based piezoelectric-electromagnetic energy capture device, which comprises a base, wherein the base is in a form of a regular polygon; each edge is provided with a cantilever beam; the cantilever beams are in a form of an isosceles trapezoid, the bottom edges of the cantilever beams are fixedly connected with the corresponding edges of the base and the cantilever beams and the base are located in the same plane; each cantilever beam is provided with a piezoelectric plate; the upper surface and the lower surface, far away from the base, of each cantilever beam are provided with a first permanent magnet and a second permanent magnet respectively; each first permanent magnet is provided with a first induction coil; a second induction coil is arranged at the lower part of each second permanent magnet; each first induction coil is fixedly connected with the corresponding second induction coil through a connecting rod; each first induction coil is provided with a fixed pulley; each fixed pulley is provided with a connection line; and one end of each connection line is connected with the corresponding first induction coil and the other end is connected with the corresponding first permanent magnet. The isosceles trapezoid cantilever beam-based piezoelectric-electromagnetic energy capture device can adapt to random broadband low-frequency, large-amplitude and high-strength vibration in the environment; and the energy recovery efficiency is high.

Description

technical field [0001] The invention relates to the field of new energy technology, in particular to a piezoelectric-electromagnetic energy harvesting device based on an isosceles trapezoidal cantilever beam. Background technique [0002] The rapid development of information technology has not driven the rapid development of power supply technology, and the energy density of power supply has not improved significantly. Although chemical energy batteries are widely used due to their convenience, problems such as environmental pollution, difficulty in recycling, and waste of materials are becoming more and more prominent. Therefore, the search for alternative energy sources has become a hot topic in today's research. One possible approach is to capture energy from ambient vibrations. Around our living environment, there are various waste energies, such as solar energy, pressure energy, mechanical vibration energy and so on. Although solar energy and pressure energy have rel...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a piezoelectric vibration generator based on an isosceles trapezoidal cantilever beam for the problems of poor environmental adaptability, low power generation efficiency, poor low-frequency adaptability, and small power generation per unit time of the existing piezoelectric vibration power generation device. - The electromagnetic energy harvesting device enables the piezoelectric power generation device to be more adaptable to random, broadband, low frequency, large amplitude and high intensity vibrations in the environment, and has high energy recovery efficiency

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