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US 2018/0020293 A1Published application
Electroacoustic transducer
AssigneeTaiyo Yuden Co., Ltd.
InventorsShigeo ISHII, Takashi TOMITA, Hiroshi HAMADA, Yutaka DOSHIDA
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Abstract
An electroacoustic transducer that can improve acoustic characteristics has a housing and a piezoelectric speaker. The piezoelectric speaker has a first vibration plate with a periphery part supported directly or indirectly on the housing, as well as a piezoelectric element placed at least on one side of the first vibration plate, and is constituted in such a way that its rigidity is asymmetric with respect to the center axis of the first vibration plate.
Claims11
An electroacoustic transducer, comprising:
- a housing;
- and;
- a piezoelectric speaker which has a first vibration plate having a periphery part supported directly or indirectly on the housing, as well as a piezoelectric element placed at least on one side of the first vibration plate, and which is constituted in a manner that the piezoelectric speaker has structural rigidity formed by the first vibration plate and the piezoelectric element, which rigidity is rotationally asymmetric with respect to a center axis of the first vibration plate.
Dependencies are inferred from the claim text.