Reducing integrated connecting pipe

Abstract

The invention discloses a reducing integrated connecting pipe. A main body of the reducing integrated connecting pipe is a slender hollow metal pipe; the pipe end of the slender hollow metal pipe is provided with a connecting adapter tube; the connecting adapter tube is formed by reducing the diameter of the pipe end of the slender hollow metal pipe; the outer diameter of the connecting adapter tube is slightly less than the inner diameter of the slender hollow metal pipe; and the connecting adapter tube is connected with the slender hollow metal pipe by a transition adapter tube. When the reducing integrated connecting pipe is used for connecting each evaporator inlet and outlet pipe, the pipe ends of two adjacent evaporator inlet and outlet pipes are respectively and fixedly connected with the reducing integrated connecting pipe and the unreduced slender hollow metal pipe, a pipe orifice of the unreduced slender hollow metal pipe is inserted into an inner hole of the connecting adapter tube of the reducing integrated connecting pipe and then the sealing welding is carried out, so that the connection of each evaporator inlet and outlet pipe can be completed. When the reducing integrated connecting pipe is used for carrying out connection of the evaporator inlet and outlet pipes, half the number of welding spots can be reduced; and additionally, the reducing integrated connecting pipe has good rigidity, so that the possibility of desoldering and leakage of the connecting position is greatly reduced and the noise of evaporators is also reduced.

Description

technical field [0001] The invention relates to a metal connecting pipe, more specifically, the invention relates to a metal connecting pipe between evaporating pipes of a refrigerator evaporator. Background technique [0002] When assembling the refrigerator evaporator components, it is necessary to connect the inlet and outlet pipes of each evaporator. The ends of the inlet and outlet pipes are respectively fixedly connected to flexible slender metal pipes, and a connecting sleeve is set between the two slender metal pipes to be connected, and the two slender metal pipes to be connected are connected from both ends of the connecting sleeve. After being inserted into the connecting sleeve, the two ends of the connecting sleeve are sealed and welded, so that the connection of the inlet and outlet pipes of each evaporator is realized. With this connection method, since the slender metal pipe used as the connecting pipe is more flexible, it can well compensate the position er...

AI Technical Summary

Problems solved by technology

With this connection method, since the slender metal pipe used as the connecting pipe is more flexible, it can well compensate the position error of the inlet and outlet pipes of each evaporator, and at the same time, the stress in the evaporator assembly is also small, but this connection The method also has shortcomings. There are many solder joints. The solder joints at both ends of the connecting sleeve are relatively weak in strength and rigidity in the evaporator assembly. increased noise

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