Pressure balance valve of air-cooled refrigerator

Abstract

The invention relates to the technical field of refrigerators, in particular to a pressure balance valve of an air-cooled refrigerator. The pressure balance valve comprises a valve body, a valve plateand a valve seat, wherein the valve body comprises a valve bottom and a sleeve fixed to the valve bottom, the central axis of the sleeve is overlapped with the central axis of the valve bottom, the valve plate comprises a plate body and an inserting sheet located on the circumference of the plate body, the inserting sheet is perpendicular to the plate body, the valve body and the valve plate areconnected through a fixing device on the sleeve, and the valve body is detachably connected to the valve seat. According to the pressure balance valve, the pressure balance valve is arranged in a pipeline and is opened or closed by the pressure difference on the two sides of the valve plate, so that freezing or frosting in a freezing chamber is effectively avoided, when the pressure is balanced, the pressure difference is reduced, the valve plate returns to the original shape due to the own elasticity and the weight, the valve is closed, the sealing performance of the refrigerator freezing chamber is ensured, and the cold quantity is not leaked outwards; and in addition, the pressure balance valve has the advantages of being simple in structure and convenient to disassemble and assemble.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a pressure balance valve of an air-cooled refrigerator. Background technique [0002] There are two main types of refrigerators on the market, direct cooling refrigerators and air cooling refrigerators. The air-cooled refrigerator has a large internal space, and it will not be wet inside like a direct-cooled refrigerator. There is a constant circulation of cold air inside the air-cooled refrigerator, and the internal smell can be kept fresh for a long time. But air-cooled refrigerators also have some problems. Because air-cooled refrigerators use the refrigerator door to make ice, it is necessary to set up air supply ducts and return air ducts from the freezer to the refrigerator door. However, due to the pressure drop of the air duct and the air duct Due to the sealing reason, the supply air volume will be greater than the return air volume, so that there will be a pressu...

AI Technical Summary

Problems solved by technology

But air-cooled refrigerators also have some problems. Because air-cooled refrigerators use the refrigerator door to make ice, it is necessary to set up air supply ducts and return air ducts from the freezer to the refrigerator door. However, due to the pressure drop of the air duct and the air duct Due to the sealing reason, the supply air volume will be greater than the return air volume, so that there will be a pressure difference between the freezing room and the outside world, and the freezing room will form a negative pressure relative to the outside world, and the humid air from the outside will penetrate into the freezing room through the door seal and cause condensation. Icing or frosting, causing customer complaints

However, if the refrigerator is directly connected to the outside world to balance the pressure between the freezer compartment and the outside world, it will lead to a decrease in thermal insulation performance, leakage of cooling capacity, increased energy consumption of the refrigerator, and reduced performance.

Images