CN208871187U - A kind of anti-pull copper-aluminium joint - Google Patents
A kind of anti-pull copper-aluminium joint Download PDFInfo
- Publication number
- CN208871187U CN208871187U CN201820804181.7U CN201820804181U CN208871187U CN 208871187 U CN208871187 U CN 208871187U CN 201820804181 U CN201820804181 U CN 201820804181U CN 208871187 U CN208871187 U CN 208871187U
- Authority
- CN
- China
- Prior art keywords
- bulge loop
- copper
- internal diameter
- outer diameter
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- -1 copper-aluminium Chemical compound 0.000 title claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052802 copper Inorganic materials 0.000 claims abstract description 44
- 239000010949 copper Substances 0.000 claims abstract description 44
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000003466 welding Methods 0.000 claims abstract description 4
- 238000005057 refrigeration Methods 0.000 abstract description 12
- 210000001503 Joints Anatomy 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model relates to the copper-aluminium joints on a kind of refrigeration piping, more particularly to a kind of anti-pull copper-aluminium joint, belong to technical field of refrigeration equipment, including copper pipe and aluminum pipe, it is characterized in that, the copper pipe End is equipped with the first bulge loop, and the internal diameter of the first bulge loop is greater than the internal diameter of copper pipe, and the outer diameter of the first bulge loop is less than the outer diameter of copper pipe；Aluminum pipe connecting pin is equipped with the second bulge loop, third bulge loop, the internal diameter of second bulge loop is slightly larger than the outer diameter of the first bulge loop, the outer diameter of third bulge loop is slightly smaller than the internal diameter of the first bulge loop, first bulge loop is arranged between the second bulge loop, third bulge loop, the first bulge loop, the second bulge loop, resistance spot welding connection between third bulge loop.Copper pipe End is designed as the first bulge loop by the utility model, the second bulge loop, third bulge loop are designed into aluminum pipe connecting pin, the connection that copper pipe and aluminum pipe are realized between second bulge loop, third bulge loop is set by the first bulge loop, and the contact area of connecting pin is big, and anti-pull performance is good.
Description
Technical field
The utility model relates to the copper-aluminium joints on a kind of refrigeration piping, and in particular to a kind of anti-pull copper-aluminium joint,
Belong to technical field of refrigeration equipment.
Background technique
For refrigeration equipments such as air-conditioning, refrigerators, refrigerant is the refrigerating medium for realizing heat exchange, it is in refrigeration piping
It circulates, refrigeration effect is related to the flow of refrigerant.Refrigeration piping generally uses copper pipe, good refrigeration effect, but I
State is the country of copper resource relative shortage, bauxite resource relative abundance, and in order to reduce cost, being using aluminum pipe on portions can
Capable, but since copper pipe differs about 400 DEG C with aluminum pipe fusing point, it often needs in the junction of copper pipe and aluminum pipe using copper aluminium
Connector realizes that the pipeline between different tubing connects.Generally required in refrigeration piping section it is smooth as far as possible, without unexpected undergauge or expansion
The case where, therefore, existing copper-aluminium joint generally requires the internal diameter of joint structure equal or close with aluminum pipe internal diameter, copper-aluminium joint
Outer diameter and aluminum pipe outer diameter it is essentially identical.Existing the copper-aluminium joint copper pipe and aluminum pipe socket joint type knot same or similar using outer diameter
The connection of structure, copper and aluminium is by the way of hot extrusion, and in copper aluminium junction, tube wall is than relatively thin, and the bond strength of copper and aluminum pipe is not
Height is easy to be torn, and separates copper pipe mutually with aluminum pipe section.
Utility model content
The purpose of the utility model is to provide a kind of anti-pull copper-aluminium joint, copper pipe End is designed as by the utility model
The second bulge loop, third bulge loop are designed in aluminum pipe connecting pin by the first bulge loop, are arranged by the first bulge loop convex in the second bulge loop, third
The connection of copper pipe and aluminum pipe is realized between ring, the contact area of connecting pin is big, and anti-pull performance is good.
The purpose of this utility model is achieved through the following technical solutions, a kind of anti-pull copper-aluminium joint, including copper
Pipe and aluminum pipe, characterized in that the copper pipe End is equipped with the first bulge loop, and the internal diameter of the first bulge loop is greater than the internal diameter of copper pipe, and first
The outer diameter of bulge loop is less than the outer diameter of copper pipe；Aluminum pipe connecting pin is equipped with the second bulge loop, third bulge loop, and the internal diameter of the second bulge loop is slightly larger
In the outer diameter of the first bulge loop, the outer diameter of third bulge loop is slightly smaller than the internal diameter of the first bulge loop, and the setting of the first bulge loop is in the second bulge loop, the
Between three bulge loops, the first bulge loop, the second bulge loop, resistance spot welding connection between third bulge loop.
Preferably, the internal diameter of the third bulge loop is equal to the internal diameter of aluminum pipe, and the internal diameter of third bulge loop is equal to the internal diameter of copper pipe.
Preferably, the outer diameter of second bulge loop is equal to the outer diameter of aluminum pipe.
Preferably, the outer diameter of the third bulge loop is greater than the outer diameter of aluminum pipe, copper pipe.
Preferably, first bulge loop, the second bulge loop, third bulge loop length are identical.
Compared with prior art, the utility model has the following beneficial effects:
First, copper pipe End is designed as the first bulge loop by the utility model, and the second bulge loop, third are designed in aluminum pipe connecting pin
The connection that copper pipe and aluminum pipe are realized between the second bulge loop, third bulge loop, the contact of connecting pin are arranged in by the first bulge loop for bulge loop
Area is big, and anti-pull performance is good.
Second, the internal diameter of third bulge loop is designed as the internal diameter of equivalent aluminum pipe by the utility model, and the internal diameter of third bulge loop is set
It is calculated as the internal diameter of equivalent copper pipe, to guarantee the flatness inside refrigeration piping.
The outer diameter of third bulge loop is designed as being greater than the outer diameter of aluminum pipe, copper pipe, be connected by increasing by third, the utility model
The thickness in portion, so that the mechanical strength of copper-aluminium joint is further enhanced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the anti-pull copper-aluminium joint of the utility model (positioning mechanism is rectangular channel, rectangular block).
Specific embodiment
As shown in Figure 1, a kind of anti-pull copper-aluminium joint, including copper pipe 1 and aluminum pipe 2.
1 end of copper pipe is equipped with the first bulge loop 11, and the internal diameter of the first bulge loop 11 is greater than the internal diameter of copper pipe 1, the first bulge loop 11
Outer diameter is less than the outer diameter of copper pipe 1.
2 connecting pin of aluminum pipe is equipped with the second bulge loop 21, third bulge loop 22, and the internal diameter of the second bulge loop 21 is slightly larger than the first bulge loop
11 outer diameter, the outer diameter of third bulge loop 22 are slightly smaller than the internal diameter of the first bulge loop 11.
First bulge loop 11 is arranged between the second bulge loop 21, third bulge loop 22, the first bulge loop 11, the second bulge loop 21, third
Resistance spot welding connects between bulge loop 22.
Preferably, the internal diameter of the third bulge loop 22 is equal to the internal diameter of aluminum pipe 2, and the internal diameter of third bulge loop 22 is equal to copper pipe 1
Internal diameter.
Preferably, the outer diameter of second bulge loop 21 is equal to the outer diameter of aluminum pipe 2.
Preferably, the outer diameter of the third bulge loop 22 is greater than the outer diameter of aluminum pipe 2, copper pipe 1.
Preferably, first bulge loop 11, the second bulge loop 21,22 length of third bulge loop are identical.
Copper pipe End is designed as the first bulge loop by the utility model, and the second bulge loop, third bulge loop are designed in aluminum pipe connecting pin,
The connection that copper pipe and aluminum pipe are realized between second bulge loop, third bulge loop, the contact area of connecting pin are set by the first bulge loop
Greatly, anti-pull performance is good.
The internal diameter of third bulge loop is designed as the internal diameter of equivalent aluminum pipe by the utility model, and the internal diameter of third bulge loop is designed as
With the internal diameter of copper pipe, to guarantee the flatness inside refrigeration piping.
The outer diameter of third bulge loop is designed as being greater than the outer diameter of aluminum pipe, copper pipe by the utility model, by increasing interconnecting piece
Thickness, so that the mechanical strength of copper-aluminium joint is further enhanced.
Claims (5)
1. a kind of anti-pull copper-aluminium joint, including copper pipe (1) and aluminum pipe (2), characterized in that copper pipe (1) end is equipped with
First bulge loop (11), the internal diameter of the first bulge loop (11) are greater than the internal diameter of copper pipe (1), and the outer diameter of the first bulge loop (11) is less than copper pipe
(1) outer diameter；Aluminum pipe (2) connecting pin is equipped with the second bulge loop (21), third bulge loop (22), and the internal diameter of the second bulge loop (21) is slightly larger
Outer diameter in the first bulge loop (11), the outer diameter of third bulge loop (22) are slightly smaller than the internal diameter of the first bulge loop (11), the first bulge loop (11)
Be arranged between the second bulge loop (21), third bulge loop (22), the first bulge loop (11), the second bulge loop (21), third bulge loop (22) it
Between resistance spot welding connect.
2. the anti-pull copper-aluminium joint of one kind according to claim 1, characterized in that the internal diameter of the third bulge loop (22)
Equal to the internal diameter of aluminum pipe (2), the internal diameter of third bulge loop (22) is equal to the internal diameter of copper pipe (1).
3. the anti-pull copper-aluminium joint of one kind according to claim 1 or 2, characterized in that second bulge loop (21)
Outer diameter is equal to the outer diameter of aluminum pipe (2).
4. the anti-pull copper-aluminium joint of one kind according to claim 1 or 2, characterized in that the third bulge loop (22)
Outer diameter is greater than the outer diameter of aluminum pipe (2), copper pipe (1).
5. the anti-pull copper-aluminium joint of one kind according to claim 1, characterized in that first bulge loop (11), second
Bulge loop (21), third bulge loop (22) length are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804181.7U CN208871187U (en) | 2018-05-28 | 2018-05-28 | A kind of anti-pull copper-aluminium joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804181.7U CN208871187U (en) | 2018-05-28 | 2018-05-28 | A kind of anti-pull copper-aluminium joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208871187U true CN208871187U (en) | 2019-05-17 |
Family
ID=66461848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820804181.7U Active CN208871187U (en) | 2018-05-28 | 2018-05-28 | A kind of anti-pull copper-aluminium joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208871187U (en) |
-
2018
- 2018-05-28 CN CN201820804181.7U patent/CN208871187U/en active Active
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| GR01 | Patent grant |