PIEZOELECTRIC DEVICE

To provide a piezoelectric device which makes an impact from the outside less likely to be transmitted to a piezoelectric element and makes transmission/reception characteristics less likely to be deteriorated.SOLUTION: A piezoelectric device 1 includes a case 10, a diaphragm 17, and a piezoelectric...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUMURA YU, TAKEDA AKITAKE, TANIGUCHI TETSUYUKI, SUMIYOSHI MIKIO, SAKANO SHIGERU, OTA YOSHIO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS RESONATORS SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	To provide a piezoelectric device which makes an impact from the outside less likely to be transmitted to a piezoelectric element and makes transmission/reception characteristics less likely to be deteriorated.SOLUTION: A piezoelectric device 1 includes a case 10, a diaphragm 17, and a piezoelectric element 20. The case 10 is formed of a resin and defines a storage space. The piezoelectric element 20 is disposed in the storage space. The diaphragm 17 is disposed between the case 10 and the piezoelectric element 20. The piezoelectric element 20 is joined to the diaphragm 17.SELECTED DRAWING: Figure 4 【課題】外部からの衝撃が圧電素子に伝わりがたく、かつ、送受信特性が劣化しがたい圧電デバイスを提供する。【解決手段】圧電デバイス１は、ケース１０と、振動板１７と、圧電素子２０とを備えている。ケース１０は、樹脂からなり、収容空間を画成している。圧電素子２０は、収容空間内に配置されている。振動板１７は、ケース１０と圧電素子２０との間に配置されている。圧電素子２０は、振動板１７に接合されている。【選択図】図４