Magnetotropic Hybrid Generator with Self‐Switching Mechanism for Long‐Term Forest Fire Prevention

• DOI: 10.1002/admt.202400340
• Publication Date: 2024-07-18T03:07:41Z
• Authors: Changyue Zheng; Chuangjian Liang; Honggui Wen; Hang Qu; Heng Ning; Chunjin Chen; Siyu Long; Lingyu Wan; Guanlin Liu; Hengyu Guo
• Keywords: Nanogenerator; Mechanical energy

Abstract The integration of triboelectric nanogenerator (TENG) with electromagnetic generator (EMG) holds promise for the efficient harvesting broadband wind energy, yet challenge coupling these two systems into one high‐durability unit has persisted. Herein, a novel magnetic attraction principle is proposed to enable seamless switching between TENG and EMG across varying rotation speeds without need additional mechanical components, thereby enhancing energy efficiency magnetotropic hybrid (MHG). rotating field induces Si‐Mn steel plates operate in contact‐separation mode within compact space, producing 270 V open‐circuit voltage output, while excess flux captured by coils generate an induced current 5 mA. Most importantly, overall structure free from wear, maintaining consistent performance after 130 000 cycles. harvested MHG utilized power human infrared sensors, flame Bluetooth hygrometers, providing long‐term, stable supply forest fire early warning systems. This study pioneers robust mechanism that effectively combines using property, opening new avenue efficiently wide‐band energy.