公开(公告)号：US5909064A

公开(公告)日：1999-06-01

申请号：US893241

申请日：1997-07-16

申请人： John William Feil ,  Wayne Ray Weiss

发明人： John William Feil ,  Wayne Ray Weiss

IPC分类号： H01H47/18 ,  H01H7/00

CPC分类号： H01H47/18 ,  Y10T307/826 ,  Y10T307/951 ,  Y10T307/957

摘要： A time delay relay circuit of the present invention includes a power supply terminal, a relay having a first terminal connected to the power supply terminal, and a timing circuit, for activating the relay for a preset duration, having a supply input for receiving power for the timing circuit. Also included is a means for connecting the supply input of the timing circuit to the power supply terminal during operation of the timing circuit and activation of the relay and disconnecting the supply input of the timing circuit from the power supply terminal during non-operation of the timing circuit. The means connecting the supply input to the power supply terminal may be a switch which is closed and opened to start the preset duration time running within the timing circuit. During the preset duration, the switch remains open. The relay is closed making a connection between the power supply terminal and the supply input. In a preferred embodiment, a pair of diodes are arranged such that current is prevented from flowing toward the switch when the relay is closed and current is prevented from flowing toward the load when the relay is open. The time delay relay circuit prevents current flow through the circuit when the circuit is connected to a power supply and not in use.

摘要翻译： 本发明的延时继电器电路包括电源端子，具有连接到电源端子的第一端子的继电器和用于在预设持续时间内启动继电器的定时电路，具有用于接收电力的电源输入 定时电路。 还包括用于在定时电路的操作期间将定时电路的电源输入连接到电源端子的装置，并且在不操作期间将继电器的启动和定时电路的电源输入与电源端子断开连接 定时电路。 将电源输入连接到电源端子的装置可以是关闭并打开的开关，以在定时电路内开始预设的持续时间运行。 在预设时间内，开关保持打开状态。 继电器闭合，使电源端子和电源输入端连接。 在优选实施例中，一对二极管被布置成使得当继电器闭合时防止电流流向开关，并且当继电器断开时防止电流流向负载。 当电路连接到电源并且不使用时，延时继电器电路防止电流流过电路。