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Solenoid valve

A technology for solenoid valves and valve stems, applied in the direction of valve lifts, valve details, valve devices, etc., can solve the problems of reducing refrigerant flow sound and not taking into account, so as to reduce refrigerant flow sound, suppress noise generation, and suppress noise Effect

Active Publication Date: 2013-06-05
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned existing solenoid valve does not take into account that the metal mesh woven by metal wires is sintered to form a multi-layer porous member and the porous member formed by a metal wire into a dense mesh to make the refrigerant in the refrigerant Bubble subdivision, and further reduce the sound of refrigerant flow

Method used

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  • Solenoid valve
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Examples

Experimental program
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Embodiment Construction

[0031] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0032] figure 1 , 2 It is a sectional view of the first embodiment of the solenoid valve of the present invention; Figure 3A , 3B , 3C is figure 1 An explanatory diagram of the multilayer structure formed by sintering the porous part of the main part; Figure 4 for figure 1 The state diagram when the solenoid valve is closed.

[0033] figure 1 In the solenoid valve 1, a tubular casing part 4 is erected on the valve body 2 with a valve chamber 21, for example, by welding, and includes an electromagnetic coil 3 arranged on the outer periphery of the casing part 4, fixed in the casing part 4 The cylindrical attractor 10, the core iron 6 disposed inside the sleeve part 4 facing the attractor 10, the cylindrical valve connected to the core iron 6 and movable in the axial direction of the sleeve part 4 The rod 9, the inflow side channel 22 and the outflow side cha...

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Abstract

The invention discloses a solenoid valve. A valve rod is contacted with or separated from a valve seat formed on a valve body through a solenoid coil; the valve body is provided with an inflow side channel and an outflow side channel; a first porous component and a second porous component of a throttling part, which are clamped to form a throttling path are arranged inside the valve rod in turn; the first porous component is arranged opposite to a communicating hole which communicates the interior of the valve rod with the inflow side channel; the first porous component has a multi-layer structure that a metal net weaved by metal wires is sintered to form a sintered net; and the second porous component has a structure which is formed by metal wires and has sparse and dense meshes. The provided solenoid valve can suppress flowing noise of a refrigerant, exactly segment air bubbles in the refrigerant and maintain the strength for a long time, and has the advantages of long service life,suitability for quantity production and low cost.

Description

technical field [0001] The invention relates to a solenoid valve for an air conditioner. Background technique [0002] Air conditioners generally switch between cooling and heating by reversing the flow of refrigerant to the outdoor heat exchanger and the indoor heat exchanger. [0003] In order to perform dehumidification operation in the refrigeration cycle system of an air conditioner, the indoor heat exchanger is divided into two types for cooling and reheating, and the dehumidification operation is performed with an expander installed between them. [0004] When the solenoid valve is used as an expander to throttling, the refrigerant will generate flow noise along with its throttling action, and when the refrigerant generates flow sound, noise will be formed. [0005] In order to prevent the generation of refrigerant flow sound, for example, refer to Patent Document 1 of JP-A-2003-156269. In this prior art, a first member for subdividing air bubbles is provided on the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06F16K27/02F16K1/32
Inventor 严卫林
Owner ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD