Invention Grant
- Patent Title: Ultrasonic motor with stabilized stator vibration
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Application No.: US17661439Application Date: 2022-04-29
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Publication No.: US11722075B2Publication Date: 2023-08-08
- Inventor: Tsuguji Kambayashi , Toshiaki Yamashita
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Nagaokakyo
- Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee Address: JP Nagaokakyo
- Agency: ArentFox Schiff LLP
- Priority: JP 19206728 2019.11.15
- Main IPC: H02N2/16
- IPC: H02N2/16

Abstract:
An ultrasonic motor is provided that includes a stator including first and second piezoelectric elements provided on a first main surface of a vibrator having a plate shape, a rotor in direct or indirect contact with a second main surface of the vibrator, and a wiring member connected to the first and second piezoelectric elements. Moreover, the wiring member includes first and second connection members connected to the first and second piezoelectric elements, a central wiring portion connected to the first and second connection members and provided in a region including a center of an axial direction, and an extended wiring portion connected to the central wiring portion. The central wiring portion is fixed to the first main surface of the vibrator and the extended wiring portion is lifted from the first main surface of the vibrator.
Public/Granted literature
- US20220263433A1 ULTRASONIC MOTOR Public/Granted day:2022-08-18
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