Connecting structure of refrigerant tube

Abstract

The invention discloses a connecting structure of a refrigerant tube, which comprises two different refrigerant tubes. One refrigerant tube with uniform diameter is a male connector, and the front end of the other refrigerant tube is a female connector and is processed to form a flaring port, wherein the diameter of the inner wall of the flaring port is greater than that of the outer wall of the male connector. The male connector of the refrigerant tube is inserted into the flaring port corresponding to the female connector of the refrigerant tube, a gap between the inner wall of the flaring port and the outer wall of the male connector is filled by using a solder, the male connector and the female connector are welded and fixed, a plurality of observing through holes are arranged on the flaring port of the refrigerant tube as the female connector at a position close to a connection position of the flaring port and the refrigerant tubes, and the filling condition of the solder in the gap of the flaring port and the male connector can be observed through the observing through holes in welding. Therefore, the welding quality can be intuitionistically checked according to a condition that whether the solder is overflow or not on the one hand, and the poor welding caused by insufficient depth when inserting the refrigerant tube as the male connector into the refrigerant tube as the female connector can be effectively avoided on the other hand.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method in which a plurality of observation through holes are arranged on the female head flare in the refrigerant pipe, through which the solder can be visually seen punching between the female head and the male head through the observation through holes during welding. The connection structure of the refrigerant pipes adjusted to the degree. Background technique [0002] An air conditioner is an indoor climate control device, and its main components include a refrigeration cycle system including a compressor, a condenser, a throttling device, and an evaporator, and an air cycle system including a blower, an air duct, and an air inlet and outlet. The air conditioner absorbs indoor air, changes its temperature through the evaporator and condenser of the heat exchange device, and then discharges it back into the room to realize the functions of cooling or heating and deh...

AI Technical Summary

Problems solved by technology

[0014] During the welding process, the solder filling degree inside the gap between the female head flare and the male head is invisible, and it can only be detected by specific equipment. Since welding and detection are completed by different equipment, in actual production Each equipment conversion takes a corresponding time, usually after all the refrigerant pipes are welded, the welded parts are uniformly inspected for liquid leakage. At this time, if the solder filled between the refrigerant pipes is insufficient and there is a false weld, it can also be regarded as qualified. The product passed the liquid leakage test, but in fact the product was unqualified. When the air conditioner was used for a period of time, the welded part separated, resulting in refrigerant leakage and air conditioner failure.

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