Thermo-magnetically operated switches having two different operating
temperatures
    2.
    发明授权
    Thermo-magnetically operated switches having two different operating temperatures 失效
    具有两个不同工作温度的热电操作开关

    公开(公告)号:US4389628A

    公开(公告)日:1983-06-21

    申请号:US268132

    申请日:1981-05-29

    IPC分类号: H01H37/58 H01H36/00

    CPC分类号: H01H37/585

    摘要: A thermo-magnetically operated switch having lower and higher operating points is maintained open below the lower operating point and above the higher operating point and is maintained closed between the two different operating points, and comprises a reed switch, two permanent magnets disposed alongside the reed switch over the respective reeds, a first ferromagnetic body having a Curie point corresponding to the higher operating point and disposed between the two magnets, and a second ferromagnetic body or bodies having a Curie point corresponding to the lower operating point and disposed along the two magnets. In order to improve reliability of the switch, two third ferromagnetic bodies having Curie points at or above the lower operating point are disposed to engage axial opposite ends of the second ferromagnetic body or bodies and the other pole faces of the magnets opposite the pole faces engage the first ferromagnetic body. The third ferromagnetic bodies may be integrally formed with the second ferromagnetic body or bodies.

    摘要翻译: 具有较低和较高工作点的热电操作开关在较低工作点下方并在较高工作点之上保持打开,并且在两个不同工作点之间保持关闭,并包括一个簧片开关,两个永久磁铁一起放置在芦苇 切换相应的簧片,具有对应于较高工作点并设置在两个磁体之间的居里点的第一铁磁体,以及具有对应于下部操作点并且沿着两个磁体设置的居里点的第二铁磁体或本体 。 为了提高开关的可靠性,设置具有位于下操作点处或上方的居里点的两个第三铁磁体接合第二铁磁体或物体的轴向相对端,并且与磁极相对的磁体的另一极面接合 第一铁磁体。 第三铁磁体可以与第二铁磁体一体地形成。

    Air-flow-rate sensors
    4.
    发明授权
    Air-flow-rate sensors 失效
    空气流量传感器

    公开(公告)号:US4516101A

    公开(公告)日:1985-05-07

    申请号:US582530

    申请日:1984-02-22

    IPC分类号: H01H35/40 H01H37/58

    CPC分类号: H01H37/585 H01H35/40

    摘要: A air-flow-rate sensor having a thermo-magnetically operated switch including a U-shaped temperature sensitive ferromagnetic piece, a positive temperature characteristic thermister, and two terminal plates, which are stationarily mounted in an opening chamber of an insulator frame. The two terminal plates are for connecting the thermister to an external electric power source and are in contact with respective input electrodes on opposite surfaces of the thermister. One of the two terminal plates is formed in a generally arcuate form to elastically press the other terminal plate onto the ferromagnetic piece through the thermister. The thermo-magnetically operated switch is fixedly mounted on the frame by fitting its opposite terminals into grooves formed in the inner wall of the frame. Each terminal plate is also fixed to the frame by fitting both ends into another grooves formed in the inner wall of the frame. The thermister is fixedly supported between the two terminal plate by engaging projections formed on one terminal plate. The frame may have grilles for covering the opening chamber.

    摘要翻译: 一种空气流量传感器,其具有固定安装在绝缘体框架的开口室中的具有U形温度敏感铁磁体,正温度特性热敏电阻和两个端子板的热电动开关。 两个端子板用于将热敏电阻连接到外部电源并且与热敏电阻的相对表面上的相应输入电极接触。 两个端子板中的一个形成为大致弓形的形式,以通过热敏电阻将另一个端子板弹性地按压到铁磁片上。 通过将其相对的端子安装在框架的内壁中形成的凹槽中,将热电动开关固定地安装在框架上。 每个端子板也通过将两端装配到形成在框架的内壁中的另一个槽中而固定到框架。 热敏电阻通过形成在一个端子板上的突出部分固定地支撑在两个端子板之间。 框架可以具有用于覆盖开口室的格栅。