Multi-element array energy harvesting system

Abstract

This patent invented a broadband kinetic energy collection system based on Faraday's law of electromagnetic induction. The system consists of an array of miniature energy harvesting units. Each energy harvesting unit consists of a pseudo-linear oscillator. Supported by the delicately designed magnetic levitation mechanism, the suspended hard magnet in the pseudo-linear oscillator can move freely in one dimension. The broadband kinetic energy collection system can be used to collect and store vibration kinetic energy with a wide frequency range. The micro energy harvesting unit array in the present invention can be mass-produced by a mature wafer process. Miniature broadband kinetic energy harvesting systems can be integrated into wireless sensor systems as power sources, or built directly into portable or wearable devices as part of a power subsystem. This patent proposes four schemes for integrating wireless sensors with the broadband kinetic energy collection system. The medium-sized broadband kinetic energy harvesting system embedded in urban roads can use the collected urban road vibration kinetic energy for urban road lighting systems. The medium-sized broadband kinetic energy harvesting system can also be suspended on poles to collect wind energy for road lighting. The broadband kinetic energy harvesting system is installed on the vehicle, together with a specially designed large capacitor and a rechargeable battery, it can recover the kinetic energy wasted during vehicle driving, so as to improve the comprehensive energy utilization efficiency of the vehicle.

Description

technical field [0001] The invention relates to a broadband kinetic energy collection system. The invention can effectively convert low-frequency broadband vibration kinetic energy into electrical energy, and store the electrical energy for use in wireless sensors, portable or wearable electronic devices, or road lighting systems. The invention can also be installed on a vehicle to use the recovered energy for starting a fuel vehicle together with a specially designed large capacitor and a rechargeable battery, or as a supplementary power source for an electric vehicle or a hybrid vehicle. Background technique [0002] Despite many advances in battery technology and reducing the power consumption and size of wireless sensors, wireless sensor applications are still limited by frequent battery replacement or recharging. At the same time, conventional batteries contain many harmful substances, which will produce toxic by-products and release dangerous gases during use, so conv...

AI Technical Summary

Problems solved by technology

This defect of the nonlinear oscillator limits its application as a low-frequency broadband vibration kinetic energy harvester

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