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Electromagnetic valve

A solenoid valve and valve port technology, which is applied in the field of solenoid valves, can solve the problems of large coil power requirements, small clearance travel, and low power consumption.

Active Publication Date: 2015-03-25
DANFOSS (TIANJIN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coil power requirement of this structure is relatively large, and the gap stroke is small, so it is impossible to provide a solenoid valve with low cost and low power consumption.

Method used

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  • Electromagnetic valve
  • Electromagnetic valve
  • Electromagnetic valve

Examples

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Embodiment Construction

[0039] Through the following examples, combined with the attached Figure 1-3 , the technical solution of the present invention will be further specifically described. In the specification, the same or similar reference numerals designate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, but should not be construed as a limitation of the present invention.

[0040] A solenoid valve according to an embodiment of the present invention will be described below with reference to the drawings.

[0041] refer to figure 1 and figure 2, In one embodiment of the present invention, a solenoid valve is provided, including: a valve body assembly 500 provided with a valve port 504; a diaphragm assembly 600, the central part of the diaphragm assembly 600 seals the valve port 504 and the The peripheral portion of th...

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Abstract

Disclosed is a solenoid valve, the solenoid valve comprises a valve body assembly (500), provided with a valve port (504), a membrane assembly (600), a central portion of which seals the valve port (504), a peripheral portion of which at least partially covers an annular chamber (508) between the valve port (504) and the valve body assembly (500), the annular chamber (508) being communication with an inlet connection pipe (501) of the solenoid valve, and the membrane assembly (600) comprising a pilot valve port member (604), the solenoid valve further comprises a movable core assembly (300), including a movable core (301) and a closing plug (304) interconnected with each other, the movable core (301) pushes the closing plug (304), and the closing plug (304) is moved up with the upward movement of the movable core (301), so as to open the through hole (6041), a upward force of differential pressure will be generated on the membrane assembly (600), resulting in forcing the membrane assembly (600) to move up, thereby opening the valve port (504). The valve can reduce power of a coil and increase travel for opening the valve.

Description

technical field [0001] The invention relates to the field of valve control switches, in particular to electromagnetic valves. Background technique [0002] In the prior art, the internal armature structure of most solenoid valves usually adopts the traditional direct valve lift structure. That is, a static iron core is fixed on the upper part of a casing, and a moving iron core that can move up and down is placed on the lower part of the casing. The piston presses down on the valve port and keeps a certain gap with the static iron core. The working principle is to use the magnetic field force generated by the electrification of the coil to attract the moving iron core to move upwards. During the upward movement, the pressure drop force of the valve port, the force of the return spring and the gravity of the moving iron core must be overcome to open the valve port. The coil power requirement of this structure is relatively large, and the gap travel is small, so it is imposs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K7/17F16K31/06F16K31/126
CPCF16K31/404
Inventor 刘成乔金红蒋炜炜汪昌东
Owner DANFOSS (TIANJIN) CO LTD