Invention Grant
- Patent Title: Stator and piezo ultrasonic motor including the same
- Patent Title (中): 定子和压电超声波电机包括相同
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Application No.: US12219744Application Date: 2008-07-28
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Publication No.: US07948149B2Publication Date: 2011-05-24
- Inventor: Burhanettin Koc
- Applicant: Burhanettin Koc
- Applicant Address: KR Suwon
- Assignee: Samsung Electro-Mechanics Co., Ltd.
- Current Assignee: Samsung Electro-Mechanics Co., Ltd.
- Current Assignee Address: KR Suwon
- Priority: KR10-2007-0075967 20070727
- Main IPC: H01L41/047
- IPC: H01L41/047 ; H02N2/08

Abstract:
A stator and a piezo ultrasonic motor including the same are provided. The piezo ultrasonic motor includes a stator including an elastic body having a flat portion at its outer surface and a central hole penetrating the center of the stator with a predetermined size, and a piezoelectric body including a first internal piezoelectric body and a second internal piezoelectric body integrally disposed parallel to each other in a longitudinal direction of the flat portion and providing an external force deforming the elastic body when an AC voltage is applied, a rotor inserted in the central hole and including a contact frictionally contacting an inner surface of the central hole, an elastic part providing an elastic force maintaining close attachment of the contact to the stator. Accordingly, the manufacturing cost decreases by reducing the number of elements and simplifying a structure, and a stable driving characteristic can be achieved.
Public/Granted literature
- US20090026891A1 Stator and piezo ultrasonic motor including the same Public/Granted day:2009-01-29
Information query
IPC分类: