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    • 1. 发明授权
    • Position sensor with communication hole
    • 带通讯孔的位置传感器
    • US5926085A
    • 1999-07-20
    • US815522
    • 1997-02-27
    • Hideki AbeKunji MuranoYoshio NuiyaYoshifusa KanazawaYasuo Takagi
    • Hideki AbeKunji MuranoYoshio NuiyaYoshifusa KanazawaYasuo Takagi
    • G01B7/30G01B21/22G01D11/30H01C10/30
    • G01D11/26G01D5/24433
    • According to the present invention there is provided a highly reliable position sensor capable of preventing the entry of foreign matters such as water and dust from the exterior into a receptacle chamber formed within a housing. Formed in the housing are a mounting opening to be mounted in a sealed state to a throttle body and a receptacle chamber having an opening. The receptacle chamber and the mounting opening are partitioned from each other by a partition wall. A sensor body is mounted into the receptacle chamber and the opening of the chamber is covered with a cover, then a clearance formed between the opening and the cover is filled and sealed with a thermosetting resin such as an epoxy resin. A communication hole for communication between the receptacle chamber and the mounting opening is formed through an operating shaft which is rotating a sliding-element receiver of the sensor body. While the thermosetting resin is heated, the air expanded in the receptacle chamber is allowed to escape through the communication hole to the exterior. After a throttle position sensor as the position sensor has been attached to the throttle body, the communication hole formed in the operating shaft is shut off from the exterior by the mounting surface for the throttle body.
    • 根据本发明,提供了一种高度可靠的位置传感器,其能够防止诸如水和灰尘的异物从外部进入形成在壳体内的容器室中。 在壳体中形成有以密封状态安装到节气门体的安装开口和具有开口的容器室。 容器室和安装开口通过分隔壁彼此隔开。 将传感器体安装在容纳室中,并且用盖覆盖室的开口,然后用诸如环氧树脂的热固性树脂填充和密封开口和盖之间形成的间隙。 通过使传感器主体的滑动元件接收器旋转的操作轴形成用于容纳室和安装开口之间的连通的连通孔。 当热固性树脂被加热时,容纳室中膨胀的空气被允许通过连通孔逃逸到外部。 在位置传感器已经附接到节气门体之后的节气门位置传感器之后,形成在操作轴中的连通孔通过用于节气门体的安装表面与外部相切。