公开(公告)号：US20150288168A1

公开(公告)日：2015-10-08

申请号：US14313487

申请日：2014-06-24

Applicant: Alpha Networks Inc.

Inventor： Chung-Wang LEE ,  Pao-Ching HU ,  Huai-Tung LEE

IPC: H02H3/20

CPC classification number: H02H11/007

Abstract: The present invention provides a relay-based foolproof circuit for over-voltage protection, which is electrically connected between a plug and an electric device, and includes a relay having at least one magnetic core, a coil wound around the magnetic core and two reed switches each having a reed and being normally in a closed state because of the elastic effect of its reed. The relay-based foolproof circuit is able to provide AC power of a first specification (e.g., 110 V AC power) received from the plug to the electric device. However, when AC power of a second specification (e.g., 220 V AC power) greater than the first specification flows through the coil, the coil causes the magnetic core to generate a magnetic force great enough to drive the two reed switches into an open state for stopping the AC power of the second specification from being provided to the electric device.

Abstract translation: 本发明提供了一种用于过电压保护的基于继电器的笨重电路，其电连接在插头和电气装置之间，并且包括具有至少一个磁芯，绕磁芯缠绕的线圈和两个簧片开关的继电器 由于其簧片的弹性效应，每个都具有簧片并且通常处于关闭状态。 基于继电器的防盗电路能够提供从插头接收到电气设备的第一规格（例如，110V AC电力）的AC电力。 然而，当大于第一规格的第二规格（例如，220V交流电）的AC电力流过线圈时，线圈使得磁芯产生足够大的磁力，以将两个簧片开关驱动到打开状态 用于停止将第二规格的AC电力提供给电气装置。