Pressure balance valve and refrigerating equipment

Abstract

The invention provides a pressure balance valve and refrigerating equipment. The pressure balance valve comprises a ventilation pipe and a valve block, wherein the first end of the ventilation pipe communicates with a refrigerating cavity of the refrigerating equipment, and the second end of the ventilation pipe communicates with the atmosphere outside the refrigerating equipment; the valve block is arranged at the first end of the ventilation pipe and blocks the pipe orifice of the first end of the ventilation pipe; and when the refrigerating equipment is used for refrigerating, the outside atmosphere can drive the valve block to move so as to open the pipe orifice of the ventilation pipe, and thus the refrigerating cavity is made to communicate with the outside atmosphere. According to the pressure balance valve, when the refrigerating equipment is used for refrigerating, the valve block can be ejected open by the outside atmosphere, so that the pipe orifice of the ventilation pipe is opened, the interior and the exterior of the refrigerating equipment are made to communicate with each other, the internal pressure and the external pressure of the refrigerating equipment are made balanced when the refrigerating equipment is used for refrigerating, and accordingly a door body can be opened conveniently; and meanwhile, when the refrigerating equipment is not used for refrigerating, the ventilation pipe can be sealed through the valve block to make the interior and the exterior of the refrigerating equipment not communicate with each other, and thus cold is prevented from leaking outwards.

Description

technical field [0001] The invention relates to the field of home appliances, and more specifically, to a pressure balance valve and refrigeration equipment. Background technique [0002] At present, when the door of the freezer is closed for cooling, the air inside the freezer shrinks, causing the outside air pressure to be greater than the inside, making it difficult for the door to be opened the next time the door is opened. At present, in order to solve the above problems, a small gap is generally reserved between the door seal and the refrigerator, or a small hole is opened on the refrigerator to keep the balance of internal and external pressures, but these two methods will make the air-conditioning in the refrigerator flow outside. Leakage, resulting in a waste of cooling capacity, which in turn will increase power consumption. [0003] Therefore, how to design a kind of freezer that can balance the pressure inside and outside the freezer and prevent the cold air fro...

AI Technical Summary

Problems solved by technology

[0002] At present, when the door of the freezer is closed for refrigeration, the air inside the freezer shrinks, causing the external air pressure to be greater than the internal pressure, making it difficult for the door to be opened the next time the door is opened

At present, in order to solve the above problems, a small gap is generally reserved between the door seal and the refrigerator, or a small hole is opened on the refrigerator to keep the balance of internal and external pressures, but these two methods will make the air-conditioning in the refrigerator flow outside. Leakage, resulting in waste of cooling capacity, which in turn will increase power consumption

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