Electromagnetic valve

Abstract

The invention discloses an electromagnetic valve, comprising a valve base (2), a sleeve (5) connected with the valve base (2), and a coil (10) outside the sleeve (5). The valve base (2) is provided with a valve opening (9) and is fixed with a medium inlet pipe (1) and a medium outlet pipe (3); a static iron core (8) and a movable iron core (6') are arranged in the sleeve (5), a spring is arrangedbetween one end of the movable iron core (6') and the static iron core (8), a containing part (62') and an end part (63') are arranged at the other end of the movable iron core (6'), the containing part (62') contains a sealing element (4) that opens or closes the valve opening (9), and a gap is arranged between the end part (63') and the sealing element (4). In the invention, the reliable operation of the electromagnetic valve is guaranteed without increasing the diameter of the iron core or the cost.

Description

technical field

[0001] The invention relates to the mechanical field, in particular to an electromagnetic valve. Background technique

[0002] Solenoid valves are widely used in hydraulic, vacuum, gas transmission and refrigeration systems, and play an important role in realizing automatic control of pipelines.

[0003] Take the solenoid valve in the refrigeration system as an example, figure 1 It is a schematic diagram of the internal structure of a solenoid valve commonly used in air conditioners when it is in a closed state. like figure 1 As shown, it includes: inlet pipe 1, valve seat 2, outlet pipe 3, steel ball 4, casing 5, moving iron core 6, spring 7, static iron core 8, valve port 9 and coil 10; where inlet pipe 1 and The outlet pipe 3 meets the valve seat 2, the sleeve 5 is connected to the valve seat 2, the coil 10 is located outside the sleeve 5, and inside the sleeve 5 are the static iron core 8, the moving iron core 6 and the spring 7 between them. When the...

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