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ECO-doorbell / Energy-saving Doorbell

ECO-doorbell

Nowadays, dry batteries are widely used to supply electricity for the doorbells in many families. This not only increase the battery consumption, not environmental protection, but also is not energy saving.This design is to convert the kinetic energy produced in the process of opening and closing doors to electrical energy for the doorbell, which effectively solves the problems of environmental protection and energy saving.

University

Southwest Petroleum University

Southwest Petroleum University
XinDu District,ChengDu,SiChuan, China

Design

Southwest Petroleum University

Southwest Petroleum University
XinDu District,ChengDu,SiChuan, China

Yanxiu Liu ,Yangshuang Xu ,Hai Geng ,Feng Yan