Light fast-response electromagnetic valve

Abstract

The invention relates to a light fast-response electromagnetic valve which comprises a coil assembly, a valve seat base, a valve spool, a spring and a control circuit. An inlet channel of the valve seat base is communicated with an annular liquid collecting tank, a valve seat is arranged at a junction of the upper end surface of an outlet channel and the annular liquid collecting tank, a stepped hole is formed in the center of the valve spool, a first sealing assembly is arranged on the lower end surface of the valve spool, the coil assembly comprises stop iron, a non-magnetic ring, a lower end, a coil, a shell and a balance bar, the other end of the balance bar extends into the stepped hole of the valve spool and is peripherally in clearance fit with the stepped hole, a second sealing assembly is arranged at a fit position of the balance bar and the stepped hole, the sealing area of the second sealing assembly is equal to the sealing area of the first sealing assembly, a spring cavity is formed by the lower end surface of the balance bar and the stepped hole of the valve spool, and the spring is positioned in the spring cavity. The light fast-response electromagnetic valve has the advantages that the problem that an existing electromagnetic valve cannot meet the requirement of a specific system on a light and small control valve is solved, and the electromagnetic valve is light and small, and is fast in response and low in power consumption.

Description

technical field [0001] The invention relates to an electromagnetic valve, which can be used as a control valve of various hydraulic and pneumatic systems. Background technique [0002] Solenoid valves are used in various hydraulic and pneumatic systems. As control components, their functions include the start, shutdown and flow adjustment of the control system. In the field of aerospace and aviation, such as propulsion systems of vehicles, aircraft and spacecraft, due to the limitation of maneuverability and payload, high requirements are put forward for the response speed, structural weight and energy consumption of solenoid valves. Miniaturization, fast response, and low power consumption have become the development trend of aerospace and aviation solenoid valves. Due to its simple structure and high reliability, the DC solenoid valve is widely used in the field of aerospace and aviation propulsion system control. The electromagnetic force necessary for the start-up of t...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: increasing the inlet pressure or increasing the outlet diameter of the existing solenoid valve will greatly increase its structural weight, which cannot meet the needs of a specific system for a lightweight and miniaturized control valve. The present invention provides a A lightweight, miniaturized, fast-response, low-power solenoid valve

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