A Cable Driven Rotary Electromagnetic Energy Harvester

Abstract

The invention belongs to the technical field of new energy and power generation, and in particular relates to a cable-driven rotary electromagnetic energy harvester, which can be used to collect mechanical energy such as vibration and swing in the environment and convert it into electrical energy. The device mainly includes: a central rotating shaft, a rotor, elastic cables and non-elastic cables; wherein, the central rotating shaft and the rotor are fixedly connected, and the elastic cables and non-elastic cables are respectively wound on the central rotating shaft with opposite winding directions; magnets can be embedded in the rotor and Interacting with the coil produces an induced current. The invention can be used to supply power to low-power electronic devices (such as micro sensors, small mobile devices, environmental monitoring networks, etc.), and can be placed in complex environments such as vibrating machinery with vibration sources, sea wave floats, and elastic floors. In addition, the invention has simple structure, easy processing, high output power and wide operating frequency range.

Description

technical field [0001] The invention belongs to the technical field of micro-energy and environmental energy collection, and in particular relates to a rotary electromagnetic energy harvester driven by a cable, which can convert various mechanical movements or excitations in the environment into electric energy, and meets the requirements of wireless sensors, micro-actuators, Power requirements for low power consumption devices such as portable electronic equipment. Background technique [0002] With the rapid development of micro-electromechanical systems and large-scale integrated circuits, many low-power electronic devices have been developed and put into use. Because these electronic devices can consume as little as a microwatt, they can operate independently of the grid with the support of batteries. Although conventional electrochemical batteries can maintain the normal operation of these devices, batteries have disadvantages such as limited energy storage, potential ...

AI Technical Summary

Problems solved by technology

Although these energy harvesters have the advantages of simple structure and low cost, they still have disadvantages such as poor adaptability, low output power, and high resonance frequency, and cannot effectively harvest energy from low-frequency and ultra-low-frequency excitations that widely exist in the natural environment.

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