Suction duct of air conditioner compressor and fabricating and connecting method thereof

Abstract

The invention provides a suction pipe for an air conditioner compressor and methods for manufacturing and connecting the same. The suction pipe is an all-steel bent pipe, a horizontal section is provided with an iron ring, an end port of a pipe column of the iron ring is pressed into the horizontal section of the bent pipe by a pressure machine based on requirements, a copper-based solder is placed at an annular seam which is arranged between the bent pipe and the iron ring and between a vertical section of the bent pipe and a main body of a liquid reservoir, which is welded in a furnace by means of braze welding so as to realize synchronous welding between the bent pipe and the iron ring and between the bent pipe and the liquid reservoir. The horizontal section of the bent pipe and a suction hole of an air cylinder of the compressor are connected directly, the sealing way has sealing of conical surface or sealing of interference fit of a cylindrical surface or filling sealing of high plastic metal deformation, and the iron ring on the bent pipe is welded by resistance welding on the shell of the compressor. The suction pipe omits a technical part of a conduit and performs all-steel pipe of the suction pipe, thereby greatly reducing use amount of the copper pipe material. In addition, twice welding are turned into once welding and applications on the prior high silver solder and the solder containing silver, phosphorus and copper are omitted, thereby reducing greatly cost of the air conditioner and improving product quality.

Description

technical field [0001] The invention relates to a modification technology of an air-conditioning compressor, in particular to the improvement of an air-conditioning compressor suction pipe and its manufacturing and connecting method. Background technique [0002] At present, the connection between the accumulator of the air conditioner compressor and the compressor body is generally realized through two transition elements: a pipe welded to each other and a connecting pipe. The conduit is welded on the compressor casing, and the connection between the compressor body and the liquid reservoir is realized through the connecting pipe. The conduit is generally made of copper tube, which is welded to the main casing of the compressor through high-silver solder flame brazing or high-frequency induction brazing; the connecting tube is copper tube or copper-plated tube, and the connection method with the reservoir body is silver-containing Phosphor copper solder manual flame brazin...

AI Technical Summary

Problems solved by technology

Due to the rising price of silver in recent years, the price of brazing materials has continued to rise, and the price of copper pipes has also continued to rise. Compressor manufacturers and downstream air-conditioning manufacturers are facing huge cost pressures.

However, the original connection method needs to be welded many times, and the welding failure rate and leakage failure rate have always been high.

Images