Four-way reversing valve

Abstract

The invention provides a four-way reversing valve of a valve seat adopting a novel processing mode and the valve seat. The valve seat is processed by a powder injection forming technology, so that the valve seat can be made of stainless steel, stainless iron and other iron and steel material or other relatively uneasy heat conduction materials to reduce heat loss of the four-way reversing valve and avoid the problem of difficulty in mechanical cutting and processing caused by adoption of the materials. The valve seat is processed by employing a powder injection forming technology; compared with the conventional method of cutting and processing irregularly-shaped sections, the powder injection forming technology has the advantages that: the consumption of material is obviously reduced, and particularly-structured shapes can be formed, so that the contact surface between the valve seat and a valve body of the four-way reversing valve can be reduced during welding, and the welding quality is ensured. Moreover, the valve seat has lower heat conductivity, so that the heat loss between a high-temperature refrigerant and a low-temperature refrigerant can be reduced, and the energy-saving effect of an air conditioner is effectively improved.

Description

technical field [0001] The invention relates to a solenoid valve or an electromagnetic four-way reversing valve used in the field of refrigeration, in particular to a valve seat and a four-way reversing valve for an electromagnetic valve or a four-way reversing valve used in an air conditioner or a refrigerator. Background technique [0002] With the rapid development of the economy, the problem of energy shortage has become increasingly prominent, and the development of a green economy that is energy-saving and environmentally friendly is the focus of economic development in various countries. For the air-conditioning and HVAC industry, the development of energy-saving and environment-friendly air conditioners and refrigerators is the key research and development direction of such enterprises. A heat pump air conditioner is a device that absorbs heat from a low-temperature object and transfers energy to a high-temperature object. When cooling, the indoor heat exchanger act...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the present invention aims at the contradictory technical problem between the relative difficulty of mechanical cutting and heat transfer loss, and adopts a valve seat material with better environmental protection performance and heat insulation performance, and a new processing method, A new four-way reversing valve is provided, and the present invention specifically adopts the following technical solutions:

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