发明申请
- 专利标题： PIEZOELECTRIC DRIVE UNIT
- 专利标题（中）： 压电驱动单元
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申请号： US12599245申请日： 2008-04-29
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公开(公告)号： US20110025169A1公开(公告)日： 2011-02-03
- 发明人: Walter Haussecker , Jorg Wallaschek , Vincent Rieger , Jens Twiefel , Tobias Hemsel , Volker Rischmueller , Dirk Guenther , Peter Froehlich
- 申请人： Walter Haussecker , Jorg Wallaschek , Vincent Rieger , Jens Twiefel , Tobias Hemsel , Volker Rischmueller , Dirk Guenther , Peter Froehlich
- 申请人地址： DE Stuttgart
- 专利权人： Robert Bosch GMBH
- 当前专利权人： Robert Bosch GMBH
- 当前专利权人地址： DE Stuttgart
- 优先权： DE102007021337.0 20070507
- 国际申请： PCT/EP2008/055245 WO 20080429
- 主分类号： H02N2/04
- IPC分类号： H02N2/04
摘要：
Disclosed are a piezoelectric drive unit (10) and a method for operating such a drive unit in order to adjust movable parts (11), especially in a motor vehicle. Said piezoelectric drive unit (10) comprises at least one piezo motor (12) that is fitted with at least one piezo actuator (18). At least one frictional element (30) of the piezo motor (12) makes it possible to generate a relative movement in relation to a frictional surface (14) located across from the frictional element (30). Said at least one frictional element (30) is disposed on a bridging web (28) of the motor (12). The bridging web (28) places the frictional element (30) at a distance (2) from the central axis (89) of the at least one piezo actuator (18), said central axis (89) extending in a longitudinal direction (19).
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