a liquid reservoir

Abstract

The invention discloses a liquid storage device comprising a device body, a drying component and a filtering piece. The device body is of a cylindrical structure with an inner cavity, wherein one endof the cylindrical structure is open. The open end of the device body is provided with a plug. The plug is inserted into the cavity of the device body and fixed to the device body. The plug is provided with a first connection hole and a second connection hole. The first connection hole is located at one end in the device body and formed on the upper side of the open end of the device body. The inlet end of the filter piece is fixed to the end, located in the device body, of the first connection hole. An interval is reserved between the outer wall of the circumferential side of a matrix body and the inner wall of the device body so as to form a flow channel. The liquid storage device is of an integrated device and not divided into an upper device body and a lower device body any more, and on the premise of guaranteeing the filtering performance, the seal performance and reliability are further improved. The liquid storage device has the advantages that the structure of parts is simple,the appearance is regular, and manufacturing and assembling are convenient.

Description

technical field [0001] The invention relates to the technical field of refrigeration, especially for storing refrigerant, [0002] Reservoir for filtering impurities and absorbing moisture. Background technique [0003] The liquid receiver is an important part in the automobile air-conditioning system, and its function is to store refrigerant, filter impurities and absorb water. Liquid reservoirs for automotive air conditioners can be divided into sight glass bases, heads, upper and lower bodies, and supercooled structures according to their structural types. liquid container. [0004] The traditional upper and lower body liquid receivers usually use non-woven fabric filters to filter the refrigerant, and the non-woven fabric filters need to have a higher density to have a certain filtration capacity. The higher the density, the same The greater the flow resistance under the cross-sectional area, since the non-woven fabric filter is installed at the inner end of the flow ...

AI Technical Summary

Problems solved by technology

[0009] First of all, the lower body 3' and the upper body 4' need to be processed and manufactured in sections, and when the welding connection is performed, the cylindrical lower body 3' and the upper body 4' need to be precisely aligned to ensure the final welding Quality, put forward higher requirements for welding process, difficult assembly, high cost, low production efficiency

[0010] Secondly, it is difficult to directly form the refrigerant inlet 31' and the refrigerant outlet 32' on the lower body 3', and the cost is high. When installing the filter cartridge 33', it is necessary to remove the filter cartridge 33' from the The butt end can only be connected with the inner port of the refrigerant inlet 31' or refrigerant outlet 32' by penetrating a certain distance. Since the inside of the lower body 3' cannot be observed from the outside, it needs to rely on experience and proficiency for blind operation , the assembly is difficult and the efficiency is low. Moreover, since the inner ports of the refrigerant inlet 31' and the refrigerant outlet 32' are located inside the lower body 3', they can only be processed into straight holes, resulting in the inlet end of the filter cartridge 33' It can only be designed as an eccentric structure, and is connected to the inner port of the refrigerant inlet 31' or refrigerant outlet 32' at the eccentric position of the lower body 3', which further increases the difficulty of assembly and is not conducive to improving assembly efficiency and connection reliability

[0011] Thirdly, since the weld seam is roughly located in the middle part of the body where it is easy to be stressed, the lower body 3' and the upper body 4' are only kept fixed and sealed by the weld seam. Under the action of external forces such as pressure and impact, there is a failure The risk of leakage will directly lead to refrigerant leakage in the event of a leaky seal

[0012] Furthermore, the welding seam appears abruptly in the middle part of the body, which seriously affects the regularity of the shape of the whole body, resulting in a poor appearance quality of the product

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