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    • 5. 发明授权
    • Pressure detection device
    • 压力检测装置
    • US6125707A
    • 2000-10-03
    • US181081
    • 1998-10-27
    • Kyosuke HagaJiro NakanoSatoshi SutoTomonari YamakawaKatsunori YamadaMitsuru AsaiNobuo Kamiya
    • Kyosuke HagaJiro NakanoSatoshi SutoTomonari YamakawaKatsunori YamadaMitsuru AsaiNobuo Kamiya
    • G01L9/00G01L19/00H01H3/02H01H35/38
    • G01L19/0092G01L9/0089H01H35/38H01H3/0213
    • A pressure detection device for detecting an increase of pressure acting thereon includes an electrically conductive device housing which has an accommodation bore extending inward from one end of the device housing and a slide bare extending between the accommodation bore and the other end of the device housing. A piston is slidably disposed within the slide bore and adopted to receive a pressure, and a terminal serving as one electric contact is fixed to the accommodation bore via an electrical insulator. A disk spring serving as the other electric contact deforms due to a pressing force of the piston and coming in contact with the terminal. The pressure detection device further comprises an electro-functional member attached to either the terminal or the disk spring in which the electro-functional member is changeable its electric resistance due to an impressed pressing force acting thereon. Further, at least one of a notch and a chamfer is provided on the electro-functional member for changing its electric resistance characteristic.
    • 用于检测作用在其上的压力增加的压力检测装置包括导电装置壳体,其具有从装置壳体的一端向内延伸的容纳孔和在容纳孔和装置壳体的另一端之间延伸的滑动件。 活塞可滑动地设置在滑动孔内并用于承受压力,并且用作一个电触点的端子经由电绝缘体固定到容纳孔。 作为另一个电接触件的盘簧由于活塞的压力而与端子接触而变形。 压力检测装置还包括附接到端子或盘簧的电功能构件,其中电功能构件由于作用在其上的施加的挤压力而改变其电阻。 此外,在电功能部件上设置切口和倒角中的至少一个以改变其电阻特性。