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A miniature normally closed solenoid valve with a two-stage armature structure

A technology of normally closed solenoid valves and solenoid valves, applied in valve details, valve devices, valve operation/release devices, etc., can solve the problem of micro solenoid valves relying on imports, etc., to improve the product's opening electromagnetic force, low opening voltage, The effect of high flow

Active Publication Date: 2020-08-25
GUIZHOU HONGLIN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the miniature solenoid valves currently on the domestic market basically rely on imports.

Method used

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  • A miniature normally closed solenoid valve with a two-stage armature structure
  • A miniature normally closed solenoid valve with a two-stage armature structure
  • A miniature normally closed solenoid valve with a two-stage armature structure

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Embodiment Construction

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, but it is not intended to limit the present invention.

[0026] see Figure 1-Figure 4 : The present invention is mainly composed of a coil cover 1 , a coil 2 , a pole shoe assembly 3 , a spring 4 , an armature assembly 5 , a top rod 6 and a valve body 7 .

[0027] During the assembling process, first put the coil 2 and the coil cover 1 on the pole shoe assembly 3 successively, and weld the right end of the coil cover 1 to the pole shoe assembly 3; Press into the pole shoe assembly 3, and finally press the valve body 7 into the pole shoe assembly 3. After the left end of the valve body 7 and the pole shoe assembly 3 are welded and fixed, the assembly of the entire valve assembly is completed.

[0028] like figure 2 As shown, the pole piece assembly 3 is composed of a pole piece 8, a magnetic isolation ring 9 and a bushing 10. The magnetic isolation ring ...

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Abstract

The invention discloses a micro normally closed electromagnetic valve with two-stage gag bit structures. The micro normally closed electromagnetic valve mainly consists of a coil cover (1), a coil module (2), a pole shoe module (3), a spring (4), a gag bit module (5), an ejector rod (6) and a valve body (7). In the assembly process, the coil (2) and the coil cover (1) sleeve the pole shoe module (3) in succession; the right end of the coil cover (1) is fixedly welded with the pole shoe module (3); after the ejector rod (6) is mounted in the gag bit module (5), the ejector rod (6) and a springare pressed into the pole shoe module (3); finally, the valve body (7) is pressed into the pole shoe module; and the valve body (7) and the pole shoe module (3) are fixed through electronic beam welding to finish assembly of a whole valve assembly. The electromagnetic valve adopts split two-stage gag bit structures to improve the opening electromagnetic force of the electromagnetic valve; and under the same performance indexes, the volume and the mass of the electromagnetic valve are about 50% of that of a traditional electromagnetic valve.

Description

technical field [0001] The invention relates to a miniature solenoid valve, in particular to a two-position, two normally closed miniature solenoid valve with a secondary armature structure. Background technique [0002] The fuel regulation system in the hydraulic system has the advantages of simple structure, high reliability and good environmental adaptability. In aviation, aerospace, ships and some special fields, the fuel regulation system has been widely used. Especially in the field of aerospace, the solenoid valve is an important control component of the hydraulic system, and its reliability requirements are continuously improved with the development and improvement of the hydraulic system, and it is developing in the direction of miniaturization and light weight. Moreover, the miniature solenoid valves in the domestic market basically rely on imports. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a miniature normally closed s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06
CPCF16K31/0675
Inventor 何少健杨建张庆军冉林陈乾东
Owner GUIZHOU HONGLIN MACHINERY
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