Title:
振動性ダイヤフラムに組み込まれた圧電セラミック変換素子を有する音響変換器
Document Type and Number:
Japanese Patent JP6891293
Kind Code:
B2
Abstract:
A sound transducer, in particular, for an ultrasonic sensor, includes a functional group, the functional group including a diaphragm cup and at least one electroacoustic transducer element. The sound transducer also includes a housing. The diaphragm cup includes a vibratory diaphragm and a circumferential wall, and at least one electroacoustic transducer element, the transducer element being configured to stimulate the diaphragm to vibrate and/or to convert vibrations of the diaphragm into electrical signals. The diaphragm cup is formed from a plastic material, the at least one transducer element being integrated into the vibratory diaphragm, in particular without an additional adhesive layer, the transducer element including a piezoceramic element.
Inventors:
Henneberg, Johannes
Andre, Gearach
Andre, Gearach
Application Number:
JP2019552621A
Publication Date:
June 18, 2021
Filing Date:
March 23, 2018
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
H04R17/00; H04R31/00
Domestic Patent References:
| JP2000121739A | ||||
| JP2016214177A | ||||
| JP2006203563A | ||||
| JP2003143685A | ||||
| JP2003284190A | ||||
| JP2009540706A |
Foreign References:
| DE102015106044A1 | ||||
| DE102007010500A1 | ||||
| US20100148633 | ||||
| US20150124564 |
Attorney, Agent or Firm:
Osamu Yamamoto
Motoharu Nakanishi
Junichi Matsuo
Kenichi Torii
Yoriko Fujiki
Oba Reiji
Hajime Takahashi
Go Yashima
Motoharu Nakanishi
Junichi Matsuo
Kenichi Torii
Yoriko Fujiki
Oba Reiji
Hajime Takahashi
Go Yashima