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    • 2. 发明申请
    • Mechanical design for a sensor to prevent an ice lock condition
    • 用于传感器的机械设计,以防止冰封状态
    • US20030020464A1
    • 2003-01-30
    • US09912908
    • 2001-07-25
    • American Electronic Components
    • Brian George BabinTodd Anthony Brown
    • G01B007/30
    • G01D3/08G01D11/245
    • A rotary position sensor which includes a molded housing with a central aperture forming a drive arm cavity, a drive arm assembly and a rotor plate. The drive arm assembly carries a circular magnet and a shunt ring and is rotatably received within the drive arm cavity. The drive arm assembly is formed with an extending stud for connection to an external mechanical lever. The rotor plate is used to close the drive arm cavity and carries a magnetic flux responsive element and one or more flux concentrators and optional flux shunt. The molded housing, drive arm assembly and rotor plate are configured to minimize air space within the drive arm cavity after the sensor is assembled. By minimizing air spaces within the drive arm cavity, the amount of ice build up within the drive arm cavity is minimized. In addition, to further prevent a condition of ice lock of the drive arm assembly relative to the molded housing, all surfaces within the drive arm cavity are formed as smooth surfaces.
    • 旋转位置传感器,其包括具有形成驱动臂腔的中心孔的模制壳体,驱动臂组件和转子板。 驱动臂组件带有圆形磁体和分流环,并且可旋转地容纳在驱动臂腔内。 驱动臂组件形成有用于连接到外部机械杆的延伸螺柱。 转子板用于关闭驱动臂腔,并带有一个磁通量响应元件和一个或多个磁通集中器以及可选的磁通分流器。 模制外壳,驱动臂组件和转子板被配置成在传感器组装之后使驱动臂腔内的空气空间最小化。 通过最小化驱动臂腔内的空气空间,使驱动臂腔内的积冰量最小化。 此外,为了进一步防止驱动臂组件相对于模制壳体的冰锁的状态,驱动臂腔内的所有表面形成为平滑表面。