Compound pendulum frequency upconversion type wave energy collecting device

Abstract

The invention discloses a compound pendulum frequency upconversion type wave energy collecting device. The compound pendulum frequency upconversion type wave energy collecting device comprises a shell, a compound pendulum mechanism, a driving gear, an electromagnetic power generating mechanism and a piezoelectric power generating mechanism. The shell floats on the water surface and swings along with waving, the compound pendulum mechanism is rotationally arranged in the shell and rotates along with swinging of the shell, and driving gear is rotationally arranged in the shell, and the driving gear and the compound pendulum mechanism rotate synchronously. The electromagnetic power generating mechanism is arranged in the shell and used for being in engaged transmission with the driving gear to be driven by the driving gear to generate power through electromagnetic induction. The piezoelectric power generating mechanism is arranged in the shell and located above the end face of the drivinggear and is used for generating deformation to generate power through a piezoelectric effect when the driving gear rotates. Thus, when the shell non-directionally swings along with waving, the compound pendulum mechanism generates non-directional rotation and adapts to dynamic changes of water surface wave energy, and high energy harvesting efficiency is achieved. Meanwhile, the electromagnetic power generating mechanism and the piezoelectric power generating mechanism carry out energy conversion through two different electromechanical coupling energy exchange mechanisms, the spectrum coverage range on wave energy is wide, high adaptability is achieved, and the conversion efficiency is high.

Description

technical field [0001] The invention relates to the technical field of power generation, in particular to a compound swing up-frequency wave energy collection device. Background technique [0002] At present, marine environmental observation mainly uses various marine observation equipment and systems for fixed-point platform observation and mobile three-dimensional network observation, such as general-purpose and special-purpose ocean data buoys equipped with multi-parameter sensors, Lagrangian drifting buoys, etc. These ocean observation equipments have long-term mobile operation and carry a variety of sensors. While generating a large amount of data, they also need to consume a large amount of energy. It is far from enough to carry high-capacity batteries and reduce energy consumption. When necessary, energy must be obtained from the marine environment or fed back from the system to ensure the long-term operation of the system. [0003] The ocean covers about 71% of the ...

AI Technical Summary

Problems solved by technology

However, the energy harvesting efficiency of the existing inertial energy harvesting mechanism working at extremely low frequencies is generally not high, and the output power density of the device is low

Moreover, the electromechanical coupling energy conversion mechanism adopted by the existing miniature wave energy harvesting devices is relatively simple, and only one of electromagnetic conversion, piezoelectric conversion or friction power generation is used, and the adaptability to ocean wave energy is not strong. low efficiency

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