Piezoelectric power generation system for capturing tidal energy

Abstract

The invention discloses a piezoelectric power generation system for capturing tidal energy, the piezoelectric power generation system comprises a tidal energy capturing mechanism, a piezoelectric power generation box and a transmission mechanism, the piezoelectric power generation box comprises at least two groups of piezoelectric power generation devices, a box body and a linkage chain, and the piezoelectric power generation devices are arranged in the box body; and each piezoelectric power generation device comprises a chain wheel, an inner ring, an outer ring and a piezoelectric power generation set. The tidal energy capturing mechanism drives one of the piezoelectric power generation devices to rotate through the transmission mechanism, and the chain wheels of the piezoelectric power generation devices are in linkage through the linkage chain. An impeller of the system transmits low-frequency rotation of the impeller to a piezoelectric power generation devices through chain and chain wheel combined transmission and multi-chain wheel linkage, and the piezoelectric power generation devices use cooperation of multiple sets of piezoelectric assemblies on an inner ring and multiple sets of magnets on an outer ring to achieve high-frequency rotation power generation of the piezoelectric assemblies so as to improve the power generation efficiency.

Description

technical field [0001] The invention belongs to the field of power generation devices, in particular to a piezoelectric power generation system for capturing tidal energy. Background technique [0002] In order to capture tidal energy for off-grid power supply of floating ocean monitoring devices, many scholars at home and abroad have proposed a method to convert tidal energy into electrical energy by using the law of electromagnetic induction, piezoelectric effect or triboelectric effect, so as to power wireless sensors. A variety of power generation devices are designed to achieve the effect of power supply. Most of the current power generation devices are equipped with an impeller at the front end of the generator device. The impeller rotates under the action of the tide, thereby driving the rotation of the generator. The magnet inside the generator cuts the magnetic induction line to generate an induced electromotive force in the coil. This power generation device reach...

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Problems solved by technology

Even if the two meet one of the conditions, that is, the condition of matching frequency, the size of the power generation device will be too large, and the increase in the volume of the power generation device will greatly reduce its output

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