Valve control circuit

The utility model discloses a valve control circuit which is characterized by comprising a valve control unit connected with a power supply and used for controlling a valve to be opened or closed; theswitch unit is used for triggering and delaying power failure in a non-contact manner; the protection unit is connected with the switch unit and is used for over-current protection; and the valve unit is connected with the protection unit and is used for realizing the valve function. According to the utility model, the non-contact triggering and delayed power-off switch unit is used for valve control, so that the problem of failure caused by plastic deformation or fatigue damage of the spring type switch due to long-term stress is avoided. 本实用新型公开了一种阀门控制电路，其特征在于，包括：与电源连接的、用于控制阀门开启或关闭的阀门控制单元；与所述阀门控制单元、用于以非接触方式触发并延时断电的开关单元；与所述开关单元连接的、用于过流保护的保护单元；与所述保护单元连接的、用于实现阀门功能的阀门单元。本实用新型通过非接触方式触发并延时断电的开关单元进行阀门控制，避免了弹簧式开关长期受力产生塑性变形或疲劳损伤而失效的问题。