Underwater bionic hybrid self-powered system

Abstract

The invention relates to an underwater bionic hybrid self-energy-supply system which is integrally of a bionic jellyfish structure, a thermoelectric energy harvesting device is located at the head of a jellyfish and is integrally hemispherical, and a thermoelectric device is arranged in the thermoelectric energy harvesting device to achieve thermoelectric power generation and energy supply; the working device is located below the thermoelectric energy harvesting device and is used for detecting and collecting required ocean information; the circuit rectifying device is positioned below the working device, consists of a rectifying circuit board and an electric energy collector, and is in circuit connection with the working device and the power device; the piezoelectric energy harvesting device is composed of a cantilever beam and a floating belt and supplies energy to the working device and the power device through the circuit rectifying device. The power device dives by absorbing water into the cavity to change buoyancy and rises by discharging water out of the cavity to change buoyancy. According to the invention, ocean energy is collected by adopting hybrid self-energy supply, the bionic structure is small in resistance, and attack of marine organisms can be effectively avoided.

Description

technical field [0001] The invention relates to a self-energy supply system, in particular to a bionic self-energy supply system applied to an underwater environment. Background technique [0002] Underwater detectors generally work in the deep water layer and are used to explore the unknown marine environment and realize the detection and collection of various marine information required. In recent years, detectors are developing towards the trend of low energy consumption, small size and bionic shape. For example, designing new integrated sensors to reduce energy consumption, imitating the special structure of seal beards to increase detection distance, using wireless power transfer technology applications or photovoltaic power generation designs, etc. However, the existing detectors generally have the following problems: (1) The detector has a peculiar shape, is easily repelled and attacked by seabed organisms, and does not meet the mechanical requirements of traveling u...

AI Technical Summary

Problems solved by technology

However, the existing detectors generally have the following problems: (1) The detector has a strange shape, is easily repelled and attacked by seabed organisms, and does not meet the mechanical requirements of underwater travel, and has high travel resistance and high energy consumption; (2) Most of the energy supply methods are rechargeable lithium batteries, which are not only heavy and bulky, but also have leakage. In addition, regular recycling and charging also consume a lot of manpower and material resources

CN110513256A discloses a heat exchange device for ocean temperature difference power generation. It utilizes a shell-like structure, built in a first heat conduction plate, a second heat conduction plate and a thermoelectric power generation sheet, supports it with a pressure-resistant shell, and fills it with phase change materials to realize the temperature difference power generation. Capturing, which is characterized by a disc-shaped heat exchange device, but cannot achieve its own movement, and requires the help of other underwater devices

However, the energy supply method of these power generation devices is single, the power generation efficiency is relatively low, and most of them cannot operate independently

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