Power switching and control mechanism for induction heating apparatus
    1.
    发明授权
    Power switching and control mechanism for induction heating apparatus 失效
    感应加热设备电源开关控制机构

    公开(公告)号:US3987268A

    公开(公告)日:1976-10-19

    申请号:US509052

    申请日:1974-09-25

    摘要: A first hollow control shaft is rotatable within a housing between actuating and restoring positions with intermediate ON-OFF positions therebetween. A first insulating actuator is rotatable within the housing to operate at least a pair of normally open contacts. A second insulating actuator is slidable along a predetermined path and normally biased to operate normally closed contacts and engageable with the first actuator by a lost motion connection which permits the second actuator to move in a limited range with respect to the rotational movement of the control shaft. The normally closed contacts are placed in a trigger circuit of an induction heating apparatus and the normally open contacts placed in a power supply circuit of the apparatus, the former being operated to disable the trigger circuit prior to energization or de-energization of the power supply circuit. A second control shaft is journaled through the first control shaft. A pinion gear is mounted on the second shaft. A rack is slidable within the housing and engages the pinion. An elevating mechanism is provided on which an induction heating coil of the induction heating apparatus is placed to adjustably heat a utensil located adjacent the coil. A connecting wire couples the rack and the elevating mechanism to effect raising and lowering of the coil to a desired position by rotation of the second shaft.

    摘要翻译: 第一空心控制轴可在壳体内在致动和恢复位置之间旋转,其间具有中间的开 - 关位置。 第一绝缘致动器可在壳体内旋转以操作至少一对常开触点。 第二绝缘致动器可沿着预定路径滑动,并且通常被偏置以操作常闭触点,并通过空动连接与第一致动器接合,该空动连接允许第二致动器相对于控制轴的旋转运动在有限的范围内移动 。 常闭触点放置在感应加热装置的触发电路中,并且放置在设备的电源电路中的常开触点,前者被操作以在电源通电或断电之前禁用触发电路 电路。 第二控制轴通过第一控制轴轴颈。 小齿轮安装在第二轴上。 机架可在壳体内滑动并与小齿轮接合。 提供了一种升降机构,感应加热装置的感应加热线圈放置在该升降机构上,以可调节地加热位于线圈附近的器具。 连接线将机架和升降机构连接起来,通过第二轴的旋转来实现线圈的升高和降低到期望的位置。