Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1996-01-31
1998-05-12
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310332, 310319, H01L 4108
Patent
active
057510911
ABSTRACT:
A power generator is provided and includes a piezoelectric transducer which generates electric power upon application of a strain. The power generator includes a vibrating arm having a sandwich structure wherein a support layer is held between at least two piezoelectric portions. The vibrating arm is wider on the support end than at a free end. The piezoelectric portions are extended to a root portion of the vibrating arm so that strain energy may efficiently be converted into electric energy. The piezoelectric portions each have a laminated structure so that piezoelectric power generator having the electromotive voltage and the capacitance optimum for charging may be realized.
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Funasaka Tsukasa
Hashimoto Yasuharu
Miyazaki Hajime
Nagasaka Eiichi
Takahashi Osamu
Budd Mark O.
Seiko Epson Corporation
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