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Electromagnetic valve with hard sealing structure

A hard seal and solenoid valve technology, applied in the field of solenoid valves, can solve problems such as difficult sealing and easy leakage, and achieve the effects of avoiding seal failure, increasing service life and improving assembly effect

Pending Publication Date: 2021-02-12
SHANGHAI ZHONGYUAN FUEL RAIL MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a solenoid valve with a hard sealing structure in order to overcome the problems of difficult sealing and easy leakage in the prior art.

Method used

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  • Electromagnetic valve with hard sealing structure
  • Electromagnetic valve with hard sealing structure
  • Electromagnetic valve with hard sealing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0047] A solenoid valve with a hard seal structure, such as figure 1 , figure 2 , image 3 , Figure 4 and Figure 5As shown, it includes valve body 1, liquid inlet seat 3, rotor mounting seat 4, valve core 5, screw rod 6, rotor 7, lower bearing 8, upper bearing 9, bearing housing 10, sealing case 11, stator 12, stator Control board 13, pressure relief valve 14, stator housing 23 and other valve components.

[0048] Such as Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the valve body 1 is provided with a first accommodation chamber 101, a second accommodation chamber 102, a longitudinal passage 103, a first transverse passage 104, a second transverse passage 105, and a third transverse passage 106; A transverse passage 104 communicates with the longitudinal passage 103, the first accommodation chamber 101 and the second accommodation chamber 102 are communicated with the longitudinal passage 103 through respective vertical passages, the end of the longitud...

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PUM

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Abstract

The invention relates to an electromagnetic valve with a hard sealing structure. The electromagnetic valve comprises a valve body internally provided with a fluid channel and an accommodating cavity,and a valve module mounted in the accommodating cavity, wherein the fluid channel is communicated with the accommodating cavity; the valve module comprises a liquid inlet base, a valve element matchedwith the liquid inlet base and used for closing or opening the fluid channel, and a driving mechanism for driving the valve element to do reciprocating motion; the liquid inlet base is provided witha guide hole allowing the lower end of the valve element to extend in; the middle section of the liquid inlet base is provided with a plurality of liquid inlet holes formed in the circumferential direction of the liquid inlet base; the lower section of the liquid inlet base is provided with a valve element fluid channel and a flow channel slope located on the upper portion of the valve element fluid channel and used for adjusting flow; and the valve element sequentially comprises a large-diameter section, a slope section, a small-diameter section and a valve element end slope from top to bottom. Compared with the prior art, the electromagnetic valve has the advantages that a hard sealing assembly mode is adopted, so that leakage is not likely to be caused, and the service life of the electromagnetic valve is greatly prolonged.

Description

technical field [0001] The invention relates to an electromagnetic valve, in particular to an electromagnetic valve with a hard sealing structure. Background technique [0002] Automobile air-conditioning systems are prone to leakage, and their working refrigerant usually uses CO 2 . However, CO 2 The critical pressure is high (Pc=7.38MPa) and the critical temperature is low (Tc=31.25°C). In order to achieve good comprehensive refrigeration performance, the refrigeration system using carbon dioxide as the refrigerant must work in the transcritical region, and the working pressure exceeds the critical pressure. The current automotive air conditioning system is much higher than the working pressure. At present, the electronic expansion valve / electronic globe valve working in the high-pressure refrigeration system is to smoothly drive the movement of the valve core under high pressure. On the one hand, it adopts a large-scale motor and adds a reducer to increase the driving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/345
CPCF16K27/029F16K1/36F16K1/425F16K31/0624F25B41/325F25B41/34F25B41/345B60H1/00485F16K31/53F16K1/46F25B9/008F16K3/243F16K3/314F16K31/0668F25B2600/2513
Inventor 苏建良张海洪沈俊杰
Owner SHANGHAI ZHONGYUAN FUEL RAIL MFG
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