Master valve body of electromagnetic four-way reversing valve and electromagnetic four-way reversing valve with adoption of same

Abstract

The invention discloses a master valve body of an electromagnetic four-way reversing valve. The master valve body comprises a valve pipe, which is formed by coiling a stainless steel plate into a cylindrical tube and then performing seamless welding on a linear connecting seam on the cylindrical tube. For the master valve body, the traditional multi-pass drawing and multiple annealing distressing treatment and other process are cancelled, the master valve body is machined and molded by coiling the stainless steel plate and then performing seamless welding, so that not only is the machining time is greatly saved, but also the machining process is greatly simplified, and thus, the machining cost is greatly reduced and the master valve body is suitable for batch production and popularization. In addition, the invention further provides the electromagnetic four-way reversing valve, comprising an electromagnetic coil, a pilot valve and a master valve, wherein the master valve comprises the master valve body of the electromagnetic four-way reversing valve. According to the invention, the production cost of the electromagnetic four-way reversing valve is greatly reduced while the precision and the service life of the electromagnetic four-way reversing valve are guaranteed.

Description

technical field [0001] The invention relates to a main valve body of an electromagnetic four-way reversing valve and an electromagnetic four-way reversing valve using the valve body. Background technique [0002] With the intensification of the global energy crisis, calls for energy conservation and consumption reduction are on the rise worldwide, and the field of air-conditioning and refrigeration, as a field with large energy consumption, bears the brunt of the key energy-saving reform targets. Therefore, for the entire air-conditioning industry, how to maximize the integration of resources and improve utilization has become an urgent problem to be solved by various air-conditioning manufacturers. [0003] As an important part of the air conditioning system, the electromagnetic four-way reversing valve is suitable for heat pump air conditioning systems, including central, split, and window air conditioners. In order to cater to the current large market environment, a new ...

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Problems solved by technology

[0004] The main valve body of the new electromagnetic four-way reversing valve is made of a circular stainless steel plate, which is finally drawn into the required stainless steel main valve body through multi-channel drawing and annealing to relieve stress. , there are disadvantages such as numerous processing procedures, complex processes, long processing cycles, and high manufacturing costs, which bring greater cost pressure to the mass production and promotion of this type of new electromagnetic four-way reversing valve, and other more advanced and simple methods must be adopted. Processing technology and methods are replaced to meet the cost requirements of mass production

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