Electromagnetic electric control valve

Abstract

An electromagnetic electric control valve comprises a valve body (13) with a valve cavity (12), an electromagnet (17) for driving a valve core (14) to move, a return spring member (14a) acting on the valve core (14), a lever member (16) which can swing around a supporting point of the lever member (14) and is used for pushing the valve core (14) to move and an electric control device (15) for keeping working states of the valve core (14) after displacement. An inlet (13a) and an outlet (13b) on the valve body (13) are respectively communicated with the valve cavity (12), and the valve core (14) is arranged in the valve cavity (12). One end (16a) of the lever member (16) is connected with the extending end of a valve rod of the valve core (14), and the electromagnet (17) is provided with amoving iron core push rod (17a) capable of pushing the other end (16b) of the lever member (16). A connecting member (4b) of a retention mechanism (4) in the electric control device (15) is connectedwith the end (16b) of the lever member (16). The electromagnetic electric control valve has the advantages of being energy-saving, stable and reliable in operation and the like.

Description

technical field [0001] The invention relates to the improvement of the valve, in particular to an electromagnetic electric control valve which uses an electromagnet to push the valve core to displace, and uses a motor to drive a transmission mechanism to maintain the working condition after the valve core is displaced. Background technique [0002] Solenoid valves are widely used in different workplaces. The existing solenoid valve includes a valve body, the valve body has a valve cavity, the valve body has an inlet and an outlet, the inlet and outlet are respectively connected with the valve cavity, and a valve core is arranged in the valve cavity; it also includes a valve for pushing the valve. The electromagnetic device for core movement, the electromagnetic device includes a coil, a static iron core, a moving iron core and a spring for restoring the moving iron core. The moving iron core is similar to a push rod and is used to push the valve core to move. There are two ...

AI Technical Summary

Problems solved by technology

The disadvantage of the existing solenoid valve is that when the valve core needs to maintain the working condition after displacement, the electromagnet is always in the energized state, which requires energy consumption, especially when the valve core needs to maintain the displacement for a long time or for a long time. In this case, the energy consumption is large, and because the current passes through the coil to form an eddy current, the temperature rises quickly, and the coil is easy to be burned. There is also heat generated by the coil being energized for a long time, which will conduct heat energy to the valve body, causing the valve body and the valve core to generate heat. Uneven thermal expansion and cold contraction are prone to cause the valve core to be stuck and cause failure, affecting the stability and reliability of operation

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