发明授权
- 专利标题： Pressure sealed transducer for automotive vehicles
- 专利标题（中）： 汽车用压力传感器
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申请号： US602851申请日： 1996-02-27
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公开(公告)号： US5648697A公开(公告)日： 1997-07-15
- 发明人: Jurgen Pirrung , Reinhard Stumpe , Gerhard Grohmann
- 申请人： Jurgen Pirrung , Reinhard Stumpe , Gerhard Grohmann
- 申请人地址： DEX Frankfurt
- 专利权人： ITT Automotive Europe GmbH
- 当前专利权人： ITT Automotive Europe GmbH
- 当前专利权人地址： DEX Frankfurt
- 优先权： DEX4329055.8 19930828
- 主分类号： B60R16/02
- IPC分类号： B60R16/02 ; B60R16/023 ; G10K11/00 ; H04R17/00 ; H01L41/08
摘要：
The present invention relates to a transducer with a piezoelectric crystal for parking aids in automotive vehicles. Such transducers must be sealed against steam jets. This object is achieved by the present invention by means of a plug including projections forming an evacuatable chamber in conjunction with the inner wall of a housing bowl. Developments of the present invention relate to the protection and sealing of the diaphragm retainer, which is part of the transducer, against moisture and mechanical displacement due to vibrations and other environmental influences.
公开/授权文献
- US5262366A Formation of a ceramic composite by centrifugal casting 公开/授权日：1993-11-16
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