University of Southern California

Yufeng Wang

Eun Sok Kim

Qian Zhang

A vibration energy harvester includes a proof mass that is a magnetic array or a coil array. The magnetic array has multiple magnets. The coil array has one or more coils. The vibration energy harvester includes an enclosed chamber. The enclosed chamber has the other of the coil array or the magnetic array that is not the proof mass. The one or more copper coils and the multiple magnets are configured to generate the electrical energy from a relative movement between the one or more copper coils and the multiple magnets. The vibration energy harvester includes a liquid suspension that suspends the proof mass within the enclosed chamber.

Ferrofluid liquid spring with magnets between coils inside an enclosed chamber for vibration energy harvesting

A vibration energy harvester that converts kinetic energy to electrical energy. The vibration energy harvester includes an electrically conductive coil array, a magnetic array and a self-assembled liquid bearing. The magnetic array is levitated above the electrically conductive coil array. The magnetic array and the electrically conductive coil array are configured to generate the electrical energy from a relative movement between the magnetic array and the electrically conductive coil array. The self-assembled liquid bearing separates the magnetic array from the electrically conductive coil array and levitates the magnetic array over the electrically conductive coil array.

Growing community of inventors

Los Angeles, CA, United States of America

Yufeng Wang