Electromagnetic relay
    1.
    发明授权

    公开(公告)号:US5027094A

    公开(公告)日:1991-06-25

    申请号:US496136

    申请日:1990-03-19

    IPC分类号: H01H50/04 H01H50/14

    CPC分类号: H01H50/042 H01H50/14

    摘要: An electromagnetic relay, comprising: a box-shaped casing having a bottom wall, a pair of side walls, a pair of end walls, and a top wall, an electromagnet unit received in the casing with its axial direction extending in parallel with the top, bottom and side walls of the casing; and at least one contact unit mounted on the top wall; one of the end walls being provided with an opening for receiving the electromagnet unit therefrom. The inner surfaces of the side walls of the casing are provided with guide grooves extending along a longitudinal direction of the casing for guiding side ends of the yoke when receiving the electromagnet unit into the casing. Thus, simply by press fitting only the electromagnet unit from the opening provided in one of the end walls of the casing, the electromagnet unit may be securely received in the box-shaped casing. This facilitates the required assembly work and permits the use of automated machines for the assembly work. Typically, the electromagnet unit is fixedly and sealingly secured in the casing with an adhesive agent.

    Polarized relay
    2.
    发明授权
    Polarized relay 失效
    极化继电器

    公开(公告)号:US4673908A

    公开(公告)日:1987-06-16

    申请号:US823662

    申请日:1986-01-29

    IPC分类号: H01H50/18 H01H51/22

    CPC分类号: H01H51/2227

    摘要: A polarized relay comprises a bar-like core having coil, and a yoke connected to the core and extending in parallel therewith. An armature including a permanent magnet is laterally movably disposed between a pair of upstanding legs formed at a free end of the yoke. Movable contacts are operationally coupled to the armature. The upstanding legs of the yoke have effective areas of magnetic pole. Upon energization of the coil, the armature is moved toward the upstanding leg to close one of the stationary contacts by overcoming the resilient resistance of the movable contact arm. Upon deenergization, the movable contact is held being contact with stationary contact under the magnetic force between the armature and upstanding leg so as to perform a bistable operation.

    摘要翻译: 极化继电器包括具有线圈的棒状铁芯和连接到铁芯并与其平行延伸的轭铁。 包括永磁体的电枢横向移动地设置在形成在轭的自由端处的一对直立腿之间。 可移动触点可操作地耦合到电枢。 轭的直立腿有磁极的有效区域。 在线圈通电时,电枢通过克服可动接触臂的弹性电阻而朝着直立腿移动以闭合固定触点中的一个。 在断电时,可动触头在电枢和直立支腿之间的磁力下保持与静触头接触,以便执行双稳态操作。