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公开(公告)号:US20110025169A1
公开(公告)日:2011-02-03
申请号:US12599245
申请日:2008-04-29
申请人: Walter Haussecker , Jorg Wallaschek , Vincent Rieger , Jens Twiefel , Tobias Hemsel , Volker Rischmueller , Dirk Guenther , Peter Froehlich
发明人: Walter Haussecker , Jorg Wallaschek , Vincent Rieger , Jens Twiefel , Tobias Hemsel , Volker Rischmueller , Dirk Guenther , Peter Froehlich
IPC分类号: H02N2/04
CPC分类号: H02N2/002 , H01L41/0536 , H02N2/003 , H02N2/026 , H02N2/103
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).
摘要翻译: 公开了一种压电驱动单元(10)以及用于操作这种驱动单元以便调节可移动部件(11)的方法,特别是在机动车辆中。 所述压电驱动单元(10)包括至少一个与至少一个压电致动器(18)配合的压电马达(12)。 压电马达(12)的至少一个摩擦元件(30)使得可以产生相对于摩擦元件(30)横跨的摩擦表面(14)的相对运动。 所述至少一个摩擦元件(30)设置在马达(12)的桥接腹板(28)上。 桥接腹板(28)将摩擦元件(30)放置在距离至少一个压电致动器(18)的中心轴线(89)的距离(2)处,所述中心轴线(89)在纵向(19) )。