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公开(公告)号：US20200052186A1
公开(公告)日：2020-02-13
申请号：US16535095
申请日：2019-08-08
发明人： Chung-Han Wu , Jun-Yan Huang , Hsin-Cheng Wang
IPC分类号： H01L41/04 , H01L41/047 , H01L41/083
摘要： A piezoelectric driving device includes a vibration unit, a piezoelectric element, a signal transmission layer, and a plane unit. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The signal transmission layer includes a first conductive zone and a second conductive zone. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The piezoelectric element, the signal transmission layer, and the plane unit are located at one side of the vibration unit and are sequentially stacked together.
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公开(公告)号：US10393109B2
公开(公告)日：2019-08-27
申请号：US14855392
申请日：2015-09-16
发明人： Chung-Han Wu , Yu-Chang Yen
摘要： A piezoelectric pump includes a piezoelectric element, a vibrating piece, a valve and a flow guiding member. The vibrating piece has a central zone attached to the piezoelectric element, a peripheral zone, a first recess, a stopper and a position limiting wall both protruding from the first recess, and a through groove disposed between the central zone and the peripheral zone and connected through the first recess. The valve is attached to the peripheral zone and has a non-straight through slit. The flow guiding member is attached to the valve and has a second recess and a channel both recessed in the flow guiding member, and a through hole. The channel is connected through the second recess and the through hole. A projection of the second recess projected on the plane which the valve exists covers the non-straight through slit. An operating method of a piezoelectric pump is further provided.
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