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Permanent fan / Permanent fan

Permanent fan
Permanent fan

In underdeveloped countries with hot climate in Africa,Due to a lack power supply .most individuals use handle fans to cool off, but the effect is not very obvious."Permanent Fan" is not only a children's toy, but also a small fan, the design of which is inspired by a big windmill I played when as a child. When children play the "Permanent Fan", it will convert kinetic energy of fan blade rotation into electric energy to store in the battery and the battery will release electric energy when necessary . In the whole process of use, there is no need for external electric energy to charge the "Permanent Fan".

University

Jiyang College of Zhejiang A&F

Jiyang College of Zhejiang A&F
University
ShaoxingZhuji, China

Shun an Wang,
Jiyang College of Zhejiang A&F

Zhang Chenli,
Hangzhou Dianzi University