Elastic plunger high-precision flow valve

Abstract

The invention discloses an elastic plunger high-precision flow valve. The elastic plunger high-precision flow valve comprises a valve body, an electromagnet assembly, a movable core and a base. The base cooperates with the inner wall of the valve body, and a main runner hole and multiple auxiliary runner holes are formed in the base. The periphery of the movable core is in clearance fit with the inner wall of the upper portion of the base, the lower portion of the movable core is provided with a plunger structure, and the plunger structure cooperates with the main runner hole of the base. Theelectromagnet assembly is arranged on the upper side of the base, and an elastic piece is arranged between the movable core and the electromagnet assembly. The electromagnet assembly generates upwardmagnetic attraction force to the movable core, and the elastic piece generates downward elastic force to the movable core. According to the scheme, the structure of the electromagnetic valve is optimally designed, the stability of the air inlet and outlet process is guaranteed, and the flow control precision is improved; the magnetic attraction force is changed through the current change of an electromagnet, and the opening degree of the movable core is controlled by overcoming the elastic force of a spring and the Bernoulli effect through the magnetic attraction force and the air inlet pressure difference; and different magnitudes of flow can be generated by different opening degrees, and the effect of precise control over the micro flow is achieved.

Description

technical field [0001] The invention relates to an elastic plunger high-precision flow valve, which belongs to the technical field of fluid electromagnetic valves. Background technique [0002] Solenoid valve is the main part of fluid flow control. Solenoid valve generally attracts the moving core through the electromagnetic coil, and controls the flow through the opening of the moving core. However, the structure of the existing solenoid valve is not reasonable enough, which leads to the unstable process of air in and out, which affects the flow. The precision of control. Contents of the invention [0003] The object of the present invention is to provide an elastic plunger high-precision flow valve in order to overcome the deficiencies of the prior art. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: a high-precision flow valve with elastic plunger, which includes a valve body, an electromagnet assembly, a movin...

AI Technical Summary

Problems solved by technology

[0002] Solenoid valve is the main part of fluid flow control. Solenoid valve generally attracts the moving core through the electromagnetic coil, and controls the flow through the opening of the moving core. However, the structure of the existing solenoid valve is not reasonable enough, which leads to the unstable process of air in and out, which affects the flow. control precision

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