Electric valve

An electric valve may include a valve housing, a valve plate disposed in the exhaust gas passage of the valve housing by a rotation shaft, a heat shield being connected to the valve housing by a bracket and forming a penetration opening to be penetrated by an upper end portion of the rotation shaft, an actuator assembled on the heat shield to decelerate torque of a drive actuator and then to output the decelerated torque, a power delivering member transferring torque of the drive actuator, wherein damping is performed by a power delivering spring disposed between a spring seat mounted the rotation shaft and the worm wheel of the actuator, to the rotation shaft, and a rotation limiting member mounted between the penetration opening of the heat shield and the spring seat corresponding with the penetration opening to limit a rotation angle of the rotation shaft. 本发明涉及种电动阀，其可以包括：阀壳体；阀板，其通过旋转轴而设置在阀壳体的排放气体通道中；隔热板，其通过支架而连接至阀壳体并形成穿透孔以被旋转轴的上端部穿透；致动器，其装配在隔热板上以增大驱动电机的转矩，然后输出经增大的转矩；动力传送构件，其将驱动电机的转矩传递至旋转轴，通过设置于安装至旋转轴的弹簧座和