Copper-aluminum joint with high mechanical strength

A technology of mechanical strength, copper-aluminum joints, applied in mechanical equipment, non-removable pipe connections, pipes/pipe joints/pipe fittings, etc. Ingenious design, enhanced mechanical strength, and the effect of improving mechanical strength

CN108506603AInactive Publication Date: 2018-09-07江苏雪旺制冷科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-09-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a copper-aluminum joint on a refrigeration pipeline, in particular to a copper-aluminum joint with high mechanical strength, and belongs to the technical field of refrigeration equipment. The copper-aluminum joint comprises a copper tube and an aluminum tube. The copper-aluminum joint is characterized in that a first connecting portion is arranged on the end portion of thecopper tube, the first connecting portion is of a horizontally arranged L-shaped structure, a second connecting portion is arranged on the end portion of the aluminum tube, and the second connectingportion is of a horizontally arranged L-shaped structure; the first connecting portion and the second connecting portion are oppositely arranged, and the first connecting portion and the second connecting portion form a rectangular structure; and positioning mechanisms matched with each other are arranged on the contact surfaces corresponding to the first connecting portion and the second connecting portion, and resistance between the first connecting portion and the second connecting portion are connected in a spot welding mode. According to the copper-aluminum joint, the end portion of the copper tube is designed as a first L-shaped connecting portion, the connecting end of the aluminum tube is designed with a second L-shaped connecting portion, and the connection of the copper tube andthe aluminum tube is realized by the first L-shaped connecting portion and the second L-shaped connecting portion forming into the rectangular structure, the contact area of the connecting ends is large, and the connecting position is high in mechanical strength.
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Description

technical field

[0001] The invention relates to a copper-aluminum joint on a refrigeration pipeline, in particular to a copper-aluminum joint with high mechanical strength, which belongs to the technical field of refrigeration equipment. Background technique

[0002] For refrigeration equipment such as air conditioners and refrigerators, the refrigerant is the cooling medium for heat exchange. It circulates in the refrigeration pipeline, and its cooling effect is related to the flow rate of the refrigerant. Refrigeration pipes generally use copper tubes, which have a good cooling effect. However, my country is a country with relatively short copper resources and relatively rich aluminum resources. In order to reduce costs, it is feasible to use aluminum tubes on some pipe sections. The temperature is about 400°C. Therefore, it is often necessary to use copper-aluminum joints at the connection between copper pipes and aluminum pipes to realize the pipe connection between diffe...

Examples

Embodiment Construction

[0017] Such as Figure 1-4 As shown, a copper-aluminum joint with high mechanical strength includes a copper tube 1 and an aluminum tube 2 .

[0018] The end of the copper pipe 1 is provided with a first connecting portion 11, and the first connecting portion 11 is an L-shaped structure arranged laterally.

[0019] The end of the aluminum tube 2 is provided with a second connecting portion 21, and the second connecting portion 21 is an L-shaped structure arranged laterally.

[0020] The first connecting part 11 and the second connecting part 21 are arranged oppositely. The first connecting part 11 and the second connecting part 21 form a rectangular structure. The positioning mechanism is connected by resistance spot welding between the first connecting portion 11 and the second connecting portion 21 .

[0021] The positioning structure includes a matched first rectangular slot 12 and a first rectangular block 22 , the first rectangular slot is set on the outer side of the f...