Stainless steel four-way reversing valve main valve with integrated valve seat for air conditioner and machining method

Abstract

The invention discloses a stainless steel four-way reversing valve main valve with an integrated valve seat for an air conditioner and a machining method, and relates to the field of reversing valves.At present, the problems that cost is high, the machining process is complex, welding positions are not firm, and a valve port face is prone to deformation after long-time use exist. The stainless steel four-way reversing valve main valve comprises a connecting seat fixed to a valve body, a middle section of the valve body is concaved inwards to form a valve seat, and the left side face and the right side face of the valve seat are disconnected with the valve body to form arched edges; the concave valve seat forms a protruding platform in an inner cavity of the valve body, the top face of theplatform is a valve port face matched with a sliding block in the valve body, the connecting seat is embedded in the concave valve seat, the left side face and the right side face of the connecting seat seal a notch formed after the valve seat and the valve body are disconnected, the wall thickness of the valve body is d, and d is larger than or equal to 0.8 mm and smaller than or equal to 1.7 mm. According to the technical scheme, the left side face and the right side face of the valve seat are disconnected with the valve body, stress generated by large deformation during stamping is avoided, and the yield and production efficiency are improved; the process complexity is reduced; the total cost is reduced; and the wall thickness of the valve body can be selected in a larger range to meetdifferent requirements.

Description

technical field [0001] The invention relates to the field of reversing valves, in particular to a main valve of a stainless steel four-way reversing valve for air-conditioning with an integrated valve seat and a processing method thereof. Background technique [0002] The four-way reversing valve is one of the important components in the air conditioner, and it is installed near the compressor. When the compressor is running, it will vibrate. The welding firmness of the connecting pipe of the four-way reversing valve is very high. [0003] The valve body of a traditional stainless steel four-way reversing valve includes a valve body, a valve seat, a D connection, a C connection, an E connection, and an S connection. The valve body is a straight-through tubular member, and the valve body has a through hole corresponding to the D connection and 3 through holes corresponding to the C, E and S connection; the cross section of the valve seat is "D", and the valve seat is composed...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved and the technical task proposed by the present invention are to perfect and improve the existing technical solutions, to overcome the existing problems in the prior art, such as high cost, complex processing technology, weak welding, and long-term use of the valve port surface. Defects such as deformation, a stainless steel four-way reversing valve main valve for air-conditioning with an integrated valve seat is proposed, which has the advantages of simple processing technology, low cost, firm welding, and long-term use of the valve port without deformation

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