Head-mounted device, passive fan structure and electronic device

A head-mounted device, a passive fan structure and an electronic device can solve the problem that a lens fogs when a user wears the head-mounted device without increasing the power consumption of the head-mounted device, and the head-mounted device comprises at least one driving assembly and a fan electrically connected with the driving assembly; the fan and the driving assembly are arranged on a middle frame of the head-mounted equipment; the middle frame is provided with an air duct communicated to a lens of the head-mounted equipment; the driving assembly comprises a sliding groove, an inductance coil and a magnet. The inductance coil is arranged in the sliding groove; and the magnet is arranged in the inductance coil and reciprocates in the inductance coil along the sliding groove in the shaking process of the head-mounted equipment. 一种头戴式设备、无源风扇结构及电子设备，可以在不增加头戴式设备的功耗的情况下，解决用户在佩戴头戴式设备时镜片起雾的问题，该头戴式设备包括：至少一个驱动组件以及与所述驱动组件电连接的风扇；所述风扇和所述驱动组件设置于所述头戴式设备的中框上；所述中框设置有连通至所述头戴式设备的镜片的风道；所述驱动组件包括滑动槽、电感线圈和磁铁；所述滑动槽内设置有所