Electronic stop valve

Abstract

The invention discloses an electronic stop valve. The electronic stop valve comprises a valve seat and a valve element port assembly, the side wall of the valve seat is hollow, the lower end of the valve seat is a valve port, the valve element port assembly is arranged in the valve seat to seal the valve port, the upper end of the valve seat is connected with a nut assembly, a coil component is installed at the upper end of the nut assembly, a vertically-lifting movable iron assembly is arranged in the center of the nut assembly, the upper end face of a valve element is concaved inwards to form a balance cavity, a vertically-through first balance flow channel is formed in the middle of the valve element, the upper end of the first balance flow channel is blocked by the lower end of the movable iron assembly, an auxiliary balance flow channel communicated with the upper portion and the lower portion of the valve element is further formed in the valve element, the movable iron assembly comprises an iron core and a movable iron sealing piece arranged inside the movable iron core to lift up and down, and a side flow channel communicating with an inner cavity is formed in the side wallof the movable iron core. The electronic stop valve is provided with the balance cavity used for balancing pressure, electromagnetic force needed for opening and closing the valve can be reduced, energy consumption is reduced, and the valve element acts more rapidly.

Description

technical field [0001] The invention relates to the field of cut-off valves, in particular to an electronic cut-off valve suitable for vehicle heat pump systems, with long service life, simple structure, convenient installation, adjustable capability and automatic valve opening and closing capability. Background technique [0002] The globe valve is the most widely used forced sealing valve, and now the globe valve is gradually developing in the direction of modularization, energy saving, intelligence and modernization. [0003] Once the valve core of the stop valve is opened, there is no contact between its valve seat and the sealing surface of the valve core, so the mechanical wear of the sealing surface is small, the sealing performance is good, and the service life is long. Moreover, the stop valve has a simple structure, and is relatively convenient to manufacture and maintain; the stop valve has a small working stroke and a short opening and closing time, and is suitab...

AI Technical Summary

Problems solved by technology

[0004] However, the pressure difference between the inlet and outlet of the stop valve is large, the resistance of the fluid medium is large, and the force required for opening and closing the valve is relatively large; and the existing stop valve cannot control the flow rate, and the adjustment performance is poor; and the commonly used stop valve is not suitable for vehicles. Heat pump system, susceptible to erosion, short service life

Images