Pulse width modulation type digital high speed switch solenoid valve

A high-speed switching, pulse width modulation technology, applied in the direction of lift valve, valve detail, multi-way valve, etc., can solve the problem of low control precision of high-speed solenoid valve, improve anti-pollution ability, ensure stability and good repeatability Effect

Inactive Publication Date: 2009-06-10
NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The object of the present invention is to provide a high-speed solenoid valve with high flow control precision, good dynamic adjustment performance, long life and high reliability, which solves the problem of existing high-speed Technical Problems of Low Control Precision of Solenoid Valve

Method used

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  • Pulse width modulation type digital high speed switch solenoid valve
  • Pulse width modulation type digital high speed switch solenoid valve
  • Pulse width modulation type digital high speed switch solenoid valve

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Embodiment Construction

[0022] see figure 1 , the pulse width modulation type digital high-speed switch solenoid valve of the present invention includes a shell coil assembly, a valve seat assembly and a valve core assembly; the shell coil assembly includes a skeleton, a static block 10, a coil 7 wound on the skeleton, and fixed on the skeleton The outer casing 21; the skeleton includes a skeleton seat 16 welded together, a magnetic isolation ring 20 and a stopper 11, and the static stopper 10 is embedded in the center of the end face of the stopper 11 in contact with the armature and is flush with the end face of the stopper 11; the valve seat The assembly includes a valve seat 3 and a valve seat spring 14, and the valve seat spring 14 is arranged between the valve seat 3 and the baffle 13; , the armature 6 is a hollow structure; the movable block 9 is embedded in the center of the end face of the armature 6 in contact with the armature and is slightly higher than the end face of the armature 6; the...

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Abstract

The invention relates to a pulse width modulated digital high-speed switch electromagnetic valve, which solves the technical problem of low control accuracy of the existing high-speed electromagnetic valves. The electromagnetic valve comprises a shell coil component, a valve seat component and a valve core component; the shell coil component comprises a framework, a coil which winds around the framework and a shell which is fixed at the outside of the framework; the framework comprises a framework seat, a magnetism isolating ring and a stop iron which are welded together; the valve seat component comprises a valve seat and a valve seat spring, and the valve core component comprises a baffle plate, an ejector pin, an armature and a valve core spring; the baffle plate is pressed on the valve seat by the unbalanced force between the valve core spring and the valve seat spring; the baffle plate contacts with the ejector pin which contacts with the armature, the valve core spring is arranged between the armature and the framework seat; the valve seat is provided with a fluid passage, and a double ring nozzle comprises an annular sealing lug boss which is arranged in the opening circle of the fluid passage of the valve seat and a plurality of supporting lug bosses which are uniformly distributed at the outside of the annular sealing lug boss. The electromagnetic valve has the advantages of high flow control accuracy, good dynamic regulation performance, long service life and high reliability.

Description

technical field [0001] The invention relates to a digital switch solenoid valve, in particular to a pulse width modulation (PWM) digital switch solenoid valve used in the field of fluid regulation and control. Background technique [0002] As the interface and actuator of the digital electronic control system, the high-speed solenoid valve is a bridge for electric-hydraulic signal conversion. Its performance index and working reliability have a great impact on the entire digital electronic control system. It does not need D / A conversion. , can be directly interfaced with the computer to realize digital electronic control, which greatly simplifies the hardware and software of the control system. High-speed solenoid valves can be used in various fluid (including liquid and gas medium) regulation and control systems, so they are widely used. In order to realize the excellent control quality of the digital electronic control system, the response time of the high-speed solenoid ...

Claims

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Application Information

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IPC IPC(8): F16K31/06F16K31/72F16K1/42F16K1/36F16K11/04F16K17/36
Inventor 尤裕荣
Owner NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH
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