ELECTROACOUSTIC TRANSDUCING DEVICE

PROBLEM TO BE SOLVED: To provide an electroacoustic transducing device having excellent high frequency property.SOLUTION: An electroacoustic transducing device related to one embodiment of the present invention, comprises: a housing; a piezoelectric type sounder; an electromagnetic type sounder; and...

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Bibliographic Details
Main Authors ISHII SHIGEO, ITO FUMIHISA, TOMITA TAKASHI, TOSHIDA YUTAKA, WATABE YOSHIYUKI
Format Patent
LanguageEnglish
Japanese
Published 20.06.2016
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Summary:PROBLEM TO BE SOLVED: To provide an electroacoustic transducing device having excellent high frequency property.SOLUTION: An electroacoustic transducing device related to one embodiment of the present invention, comprises: a housing; a piezoelectric type sounder; an electromagnetic type sounder; and a supporting member. The piezoelectric type sounder includes a diaphragm having a first surface and a second surface on an opposite side of the first surface, and a piezoelectric element which is joined to at least one of the first surface and the second surface. An inside of the housing is divided into a first space part facing the first surface and a second space part facing the second surface. The electromagnetic type sounder is disposed in the first space part. The supporting member is constituted of a part of the housing or a member different from the housing, and has a supporting part opposing the first surface or the second surface, and supports a peripheral part of the first surface or the second surface.SELECTED DRAWING: Figure 7 【課題】高周波特性に優れた電気音響変換装置を提供する。【解決手段】本発明の一形態に係る電気音響変換装置は、筐体と、圧電式発音体と、電磁式発音体と、支持部材とを具備する。上記圧電式発音体は、第1の面と、上記第1の面とは反対側の第2の面とを有する振動板と、上記第1の面及び上記第2の面の少なくとも一方に接合された圧電素子とを含み、上記筐体の内部を上記第1の面に臨む第1の空間部と上記第2の面に臨む第2の空間部とに区画する。上記電磁式発音体は、上記第1の空間部に配置される。上記支持部材は、上記筐体の一部又は上記筐体とは異なる部材で構成され、上記第1の面又は上記第2の面に対向する支持部を有し、上記支持部により上記第1の面又は上記第2の面の周縁部を支持する。【選択図】図7
Bibliography:Application Number: JP20150066539