Title:
VIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/113701
Kind Code:
A1
Abstract:
Provided is a vibration device having improved vibration efficiency. This vibration device comprises: a light transmission body cover 11; a vibration body 12 having a cylindrical body 16, which has one end 16a and another end 16b and which supports the light transmission body cover 11 on the one end 16a side, and having a flange 17, which has a first surface 17a located on the one end 16a side of the cylindrical body 16 and which extends from the other end 16b of the cylindrical body 16 to the outside and/or the inside of a side wall 16c of the cylindrical body 16; a piezoelectric element 13 which is disposed in the vibration body 12 and which vibrates the vibration body 12; a case 14 which is disposed on the other end 16b side of the cylindrical body 16 and which comes into contact with the flange 17 of the vibration body 12; and a plurality of fixing parts 15 which are arranged at intervals on the first surface 17a of the flange 17 of the vibration body 12 and which fix the vibration body 12 and the case 14.
Inventors:
KITAMORI NOBUMASA (JP)
Application Number:
PCT/JP2021/040811
Publication Date:
June 02, 2022
Filing Date:
November 05, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H02N2/04
Domestic Patent References:
| WO2019225041A1 | 2019-11-28 |
Foreign References:
| JP2020181079A | 2020-11-05 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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