发明授权
US06307306B1 Piezo actuator with improved electrical contacting and employment of such a piezo actuator
有权
压电致动器具有改进的电接触和使用这种压电致动器
- 专利标题： Piezo actuator with improved electrical contacting and employment of such a piezo actuator
- 专利标题（中）： 压电致动器具有改进的电接触和使用这种压电致动器
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申请号： US09369604申请日： 1999-08-06
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公开(公告)号： US06307306B1公开(公告)日： 2001-10-23
- 发明人: Ulrich Bast , Dieter Cramer , Gerald Kainz , Carsten Schuh , Andreas Wolff , Karl Lubitz
- 申请人： Ulrich Bast , Dieter Cramer , Gerald Kainz , Carsten Schuh , Andreas Wolff , Karl Lubitz
- 优先权： DE19835644 19980806; DE19930585 19990702
- 主分类号： H01L4104
- IPC分类号： H01L4104
摘要：
A piezo actuator (1) is disclosed that has a contact lug (20, 21) for the electrical contacting of an electrode (14, 15) of an actuator member (11). Due to an expansion and contraction of the actuator member, a mechanical stress occurs in the contact lug that is minimized in that the contact lug has a device for adapting the expanse to a dimension of the expansion and contraction. The device is, for example, a deformation material in the form of a wire weave. The piezo actuator is utilized for the drive of an injection valve in an internal combustion engine.
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