LOW FREQUENCY RANDOM VIBRATION-ORIENTED ELECTROMAGNETIC ENERGY HARVESTER

摘要

A low frequency random vibration-oriented electromagnetic energy harvester comprises a stator magnet (3) and a rotor magnet (4). Taking advantage of mutual attraction between magnets and in case of the low frequency random vibration in the external environment, the rotor magnet produces a relative motion with electromagnetic coils (2) distributed circumferentially while rotating about the stator magnet, thereby generating electrical energy output, and achieving high efficiency energy harvesting. The electromagnetic energy harvester is applicable to energy harvesting in a variety of complex random vibration environments, and has a low operating frequency, a wide frequency band, and a wide usage range.