Double tube liquid accumulator for air conditioner compressor

By employing a design that combines copper and iron pipe sections through composite welding and localized copper plating, the high manufacturing cost of the dual-pipe liquid receiver for air conditioning compressors was resolved, resulting in cost reduction and improved welding quality.

CN224719008UActive Publication Date: 2026-09-04TAIAN YONGRUI INTELLIGENT EQUIPMENT CO LID
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Patent Information

Application Number
CN202522234245.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-22
Publication Date
2026-09-04
Estimated Expiration
2035-10-22

AI Technical Summary

Technical Problem

The manufacturing cost of existing dual-pipe liquid receivers for air conditioning compressors is relatively high, mainly due to the large amount of copper used, which leads to high welding costs.

Method used

The design employs a composite welding of copper and iron pipe sections, with partial copper plating on the exhaust bend and intake pipe. Copper is used only in critical areas, and resistance welding is combined to reduce copper usage and improve welding quality.

Benefits of technology

This effectively reduced the manufacturing cost of the dual-tube reservoir while ensuring the reliability and conductivity of the welds, improving production efficiency and the quality of the welded joints, and reducing welding defects.

✦ Generated by Eureka AI based on patent content.
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Abstract

The application discloses a double-pipe liquid accumulator of an air conditioner compressor, which comprises a cylinder body, two gas outlet bends and a gas inlet pipe arranged at one end of the cylinder body, and is characterized in that the one end of the cylinder body is tapered and shrunk, the small-diameter end of the tapered section is provided with a cylindrical neck opening to form a gas inlet port, the other end of the cylinder body is a flat bottom surface which is connected with the round corner of the middle cylinder body, two conical outer bosses are arranged on the flat bottom surface, and a gas outlet port is arranged in the middle of each outer boss; the gas outlet bends and the gas inlet pipe are formed by composite welding of copper pipe sections and iron pipe sections; or the gas outlet bends and the gas inlet pipe are made of iron pipes and are locally plated with copper; compared with the use of copper pipes, the composite welding of the copper pipe sections and the iron pipe sections can greatly reduce the use amount of copper, and the use of copper can also be reduced by making the gas outlet bends and the gas inlet pipe of iron and locally plating copper, only the key parts which need to be welded with the compressor or other components are plated with copper, and the cost is reduced to the maximum extent.
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