Liquid reservoir and method for manufacturing the same

Abstract

A liquid reservoir, comprising a housing with an opening at one end, a filter cover, and a drying bag, the filter cover is arranged at one end of the opening of the housing, the drying bag is arranged in a cavity formed by the filter cover and the housing, and the housing is provided with a first connection mouth, the second connection port, the filter cover includes a filter part and a cover part close to the opening end of the housing, the cover part is sealed with the inner wall of the housing, the filter part is a cylindrical structure, the second connection port and the shell The inner wall of the body communicates with the space between the filter part, the first connection port communicates with the inner space of the filter part, and the filter cover has a matching sealing structure between the end close to the drying bag and the inner wall of the housing, and the refrigeration The agent is filtered through the filter part during the process of flowing between the first connection port and the second connection port; the liquid reservoir also includes a limiting structure to prevent the dry bag from falling into the inside of the filter cap, so as to ensure that the filter cap normal filtering capacity.

Description

technical field [0001] The invention relates to the technical field of refrigeration systems, in particular to a liquid receiver and a manufacturing method thereof. Background technique [0002] The liquid receiver is a relatively important accessory in the refrigeration system. Its function is to filter impurities in the refrigerant, absorb moisture in the refrigerant and store a certain amount of refrigerant. Therefore, it is widely used in refrigeration systems such as automobile air conditioners. At present, there are many types of liquid reservoirs in automobile air conditioners, among which the application range of upper and lower body liquid reservoirs is relatively wide. [0003] The upper and lower body liquid reservoirs are slender in shape, and are formed by welding after the upper body and the lower body are butted. The inside of the liquid reservoir is equipped with a dry bag, and the dry bag has molecular sieves inside. The lower end of the lower body is prov...

AI Technical Summary

Problems solved by technology

In this way, after the refrigerant enters the liquid receiver from the inlet, it will pass through the first metal filter, the non-woven filter and the second metal filter in sequence. Since the non-woven filter is relatively dense, the filtration accuracy is better, But it also brings the problem of relatively large filtration resistance, that is, the higher the density of the non-woven filter, the greater its flow resistance, which will increase the load on the refrigeration system

At the same time, due to the large flow resistance of the non-woven filter, the impurities in the refrigerant are easy to accumulate on the surface of the non-woven filter, which further weakens the flow capacity of the non-woven filter.

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