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1. US20200295676 - Vibration unit having a piezoelectric element as the vibration source

官庁
アメリカ合衆国
出願番号 16650014
出願日 13.09.2018
公開番号 20200295676
公開日 17.09.2020
特許番号 11323046
特許付与日 03.05.2022
公報種別 B2
IPC
H02N 2/00
H電気
02電力の発電,変換,配電
N他類に属しない電機
2圧電効果,電歪または磁歪を用いる電機一般
B06B 1/06
B処理操作;運輸
06機械的振動の発生または伝達一般
B機械的振動の発生または伝達一般
1振動数が亜音波,音波,超音波級の機械的振動を発生させる方法または装置
02電気的エネルギーを利用するもの
06圧電効果,電気ひずみを利用するもの
CPC
B06B 1/0648
BPERFORMING OPERATIONS; TRANSPORTING
06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, ; e.g.; FOR PERFORMING MECHANICAL WORK IN GENERAL
1Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
02making use of electrical energy
06operating with piezo-electric effect or with electrostriction
0644using a single piezo-electric element
0648of rectangular shape
H02N 2/005
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
2Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
0005producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
005Mechanical details, e.g. housings
H02N 2/004
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
2Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
0005producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
001Driving devices, e.g. vibrators
003using longitudinal or radial modes combined with bending modes
004Rectangular vibrators
出願人 TDK CORPORATION
発明者 Atsushi Ezawa
Takuto Horii
Atsuko Murakoshi
代理人 Oliff PLC
優先権情報 2017183975 25.09.2017 JP
発明の名称
(EN) Vibration unit having a piezoelectric element as the vibration source
要約
(EN)

In a vibration unit, a piezoelectric element enters an internal space of a through hole; and thereby, a second case member can be arranged proximate to a first case member. Therefore, a thickness of the vibration unit can be reduced, namely, a height of the vibration unit can be reduced. As described above, since the thickness of the vibration unit is reduced, a size of the vibration unit can be reduced.