CN220506088U - Copper aluminum pipe assembly - Google Patents
Copper aluminum pipe assembly Download PDFInfo
- Publication number
- CN220506088U CN220506088U CN202320974586.6U CN202320974586U CN220506088U CN 220506088 U CN220506088 U CN 220506088U CN 202320974586 U CN202320974586 U CN 202320974586U CN 220506088 U CN220506088 U CN 220506088U
- Authority
- CN
- China
- Prior art keywords
- copper
- aluminum
- pipe
- aluminum pipe
- wall thickness
- 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
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 52
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052802 copper Inorganic materials 0.000 claims abstract description 49
- 239000010949 copper Substances 0.000 claims abstract description 49
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000005336 cracking Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 150000001879 copper Chemical class 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The utility model discloses a copper-aluminum pipe assembly, which comprises an aluminum pipe and a copper pipe fitting, wherein the copper pipe fitting comprises a straight barrel part, at least one end of the straight barrel part is provided with a connecting part, and the straight barrel part is connected with the aluminum pipe through the connecting part; the wall thickness of the connecting part is equal to that of the straight cylinder part, a conical part is formed between the straight cylinder part and the connecting part, and the wall thickness of the conical part is equal to that of the straight cylinder part. According to the copper-aluminum pipe assembly, the wall thickness of the connecting part at one end of the aluminum pipe is consistent with the wall thickness of the copper pipe, and then the connecting part is inserted into the aluminum pipe, namely, the aluminum pipe and the copper pipe are connected under the condition that the wall thickness of the copper pipe is not reduced, so that the strength of a copper-aluminum joint is integrally increased; the strength of the copper-aluminum joint is not required to be protected by adding a protection frame; namely, the service life of the copper-aluminum pipe fitting is greatly prolonged, and the cracking and leakage risks of the copper-aluminum joint can be effectively avoided.
Description
Technical Field
The utility model relates to the technical field of refrigeration pipes, in particular to a copper-aluminum pipe assembly.
Background
In recent years, along with the development of society and innovation of science and technology, the refrigeration field is greatly developed, the refrigeration technology is widely applied to various fields such as household appliances, traffic and the like, the main components of the refrigeration technology are copper pipes and refrigerants, the refrigerants are working substances for refrigeration circulation in a refrigeration device, and then the refrigerants are conveyed through copper aluminum pipes so as to achieve a circulation effect; because of the rising price of copper, aluminum has become a main measure for reducing the cost in the refrigeration industry instead of copper, and the main mode in the current industry is to taper and thin the end of a copper pipe so as to ensure the same or similar to the inner wall of an aluminum pipe and achieve the effect of connecting the copper pipe and the aluminum pipe.
The application number is CN200510043347.5, and the name is Chinese patent of copper-aluminum combined pipeline piece with the same pipe diameter as the aluminum pipe and processing technology thereof, a section of copper pipe is welded at one end or two ends of the aluminum pipe, the combination mode of the copper pipe and the aluminum pipe with the same or similar external diameter is a sleeved structure, copper-aluminum welding joint surfaces are conical sleeved surfaces of the copper pipe and the aluminum pipe, copper pipe parts in the sleeved structure are reduced straight pipe structures with the thin copper pipe walls of the pipe ends, the internal diameter of the copper-aluminum joint formed by the conical sleeved surfaces is equal to or close to the internal diameter of the aluminum pipe, and the external diameter of the copper-aluminum joint is basically the same as the external diameter of the aluminum pipe, so that the effect of not affecting the flow velocity of a refrigerant is achieved.
The disadvantage of the prior art is that there is a problem of reduced strength at the copper-aluminium joint after the copper tube has been thinned, resulting in a product that has a risk of cracking and leakage during use, whether it is the use of the copper-aluminium joint tube as in the prior art or in the above patent.
Disclosure of Invention
The object of the present utility model is to provide a copper aluminum tube assembly which solves the above-mentioned drawbacks of the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
the copper-aluminum pipe assembly comprises an aluminum pipe and a copper pipe fitting, wherein the copper pipe fitting comprises a straight barrel part, at least one end of the straight barrel part is provided with a connecting part, and the straight barrel part is connected with the aluminum pipe through the connecting part;
the wall thickness of the connecting part is equal to that of the straight cylinder part;
a conical part is formed between the straight cylinder part and the connecting part;
the wall thickness of the conical part is equal to that of the straight cylinder part.
In a further preferred embodiment of the present utility model, the wall thickness of the connecting portion is 0.6mm.
In a further preferred embodiment of the present utility model, the outer diameter of the straight tube portion is 7mm.
In a further preferred embodiment of the present utility model, the aluminum pipe has an outer diameter of 7mm and a wall thickness of 1mm.
In a further preferred embodiment of the present utility model, the outer diameter of the connecting portion is 5mm, and the inner diameter is 3.8mm.
In a further preferred embodiment of the utility model, a notch is formed at the position where the aluminum pipe is connected with the copper pipe fitting.
In a further preferred embodiment of the present utility model, at least one end of the aluminum pipe is formed with an inner conical surface, and the inner conical surface is adapted to the conical portion.
In a further preferred embodiment of the utility model, the copper pipe fitting and the aluminum pipe are welded together.
In the technical scheme, the copper-aluminum pipe assembly provided by the utility model has the beneficial effects that:
according to the utility model, the wall thickness of the connecting part at one end of the aluminum pipe is consistent with the wall thickness of the copper pipe, and then the connecting part is inserted into the aluminum pipe, namely, the aluminum pipe and the copper pipe are connected under the condition that the wall thickness of the copper pipe is not reduced, so that the strength of the copper-aluminum joint is integrally increased; the strength of the copper-aluminum joint is not required to be protected by adding a protection frame; namely, the service life of the copper-aluminum pipe fitting is greatly prolonged, and the cracking and leakage risks of the copper-aluminum joint can be effectively avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the disclosed technology.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic view of an explosion structure of a copper pipe and an aluminum pipe according to an embodiment of the present utility model;
FIG. 2 is a schematic view showing the internal structure of a copper pipe member and an aluminum pipe member according to an embodiment of the present utility model;
FIG. 3 is a schematic view showing a partial structure of a copper pipe fitting and an aluminum pipe according to an embodiment of the present utility model;
FIG. 4 is a schematic cross-sectional view of a copper pipe fitting and an aluminum pipe according to an embodiment of the present utility model;
fig. 5 is a schematic view showing a partial sectional structure of a copper pipe and an aluminum pipe according to an embodiment of the present utility model.
Reference numerals illustrate:
1. copper pipe fittings; 13. a straight tube portion; 2. an aluminum pipe; 11. a tapered portion; 12. a connection part; 21. an inner conical surface; 3. and (5) a notch.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Referring to fig. 1-5, a copper-aluminum tube assembly comprises an aluminum tube 2 and a copper tube 1, wherein the copper tube 1 comprises a straight tube portion 13, at least one end of the straight tube portion 13 is provided with a connecting portion 12, and the straight tube portion 13 is connected with the aluminum tube 2 through the connecting portion 12;
the wall thickness of the connecting part 12 is equal to the wall thickness of the straight tube part 13, the wall thickness of the connecting part 12 at one end of the aluminum tube 2 is consistent with the wall thickness of the copper tube, and then the connecting part 12 is inserted into the aluminum tube 2, namely, the connection of the aluminum tube 2 and the copper tube is realized under the condition that the wall thickness of the copper tube is not reduced, so that the strength of the copper-aluminum joint is integrally increased; the strength of the copper-aluminum joint is not required to be protected by adding a protection frame; namely, the service life of the copper aluminum pipe 2 is greatly prolonged, and the cracking and leakage risks of the copper aluminum joint can be effectively avoided.
Then, a tapered portion 11 is formed between the straight tube portion 13 and the connecting portion 12. That is, in the present embodiment, a tapered copper pipe wall is formed between the straight cylindrical portion 13 and the connection portion 12, that is, not only facilitating the insertion of the copper pipe but also facilitating the welding operation between the copper pipe and the aluminum pipe 2.
Furthermore, the wall thickness of the connecting portion 12 of the copper-aluminum pipe fitting provided in this embodiment is 0.6mm, the outer diameter of the straight tube portion 13 is 7mm, the outer diameter of the aluminum tube 2 is 7mm, the wall thickness is 1mm, the outer diameter of the connecting portion 12 is 5mm, the inner diameter is 3.8mm, and a notch 3 is formed at the position where the aluminum tube 2 is connected with the copper pipe fitting 1.
Further, the wall thickness of the conical portion 11 is equal to the wall thickness of the straight tube portion 13, an inner conical surface 21 is formed at least one end of the aluminum tube 2, the inner conical surface 21 is adapted to the conical portion 11, as shown in fig. 4, the conical portion 11 of h2 is inclined inwards in the axial direction of the straight tube portion 13, when the connecting portion 12 is inserted into the aluminum tube 2, the conical surface can be attached to the inner conical surface 21, the stability of the device is integrally improved, and the conical portion 11 and the adapted inner conical surface 21 provided in the utility model can facilitate insertion of a copper tube and simultaneously improve the processing speed.
In order to further improve the flatness and connection stability of the welded position of the copper pipe and the aluminum pipe 2, in the utility model, a part of the end part of the aluminum pipe 2 connected with the copper pipe 1 is subtracted, namely, a notch 3 is formed at the position of the aluminum pipe 2 connected with the copper pipe 1, so that a notch a appears at the position of the copper pipe connected with the aluminum pipe 2, as shown in fig. 5, namely, the welded position is fully filled in the notch a when welding is carried out, thereby not only improving the stability between the copper pipe and the aluminum pipe 2, but also improving the flatness of the position of the connection surface.
Specifically, the position of the connection portion 12 is the position h1 shown in fig. 4, the outer diameter size of the connection portion 12 is equal to the inner diameter size of the aluminum pipe 2, and the connection portion 12 is inserted into the aluminum pipe 2.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (7)
1. A copper aluminum tube assembly, characterized in that: the copper pipe fitting comprises an aluminum pipe (2) and a copper pipe fitting (1), wherein the copper pipe fitting (1) comprises a straight barrel part (13), at least one end of the straight barrel part (13) is provided with a connecting part (12), and the straight barrel part (13) is connected with the aluminum pipe (2) through the connecting part (12);
the wall thickness of the connecting part (12) is equal to that of the straight cylinder part (13);
a conical part (11) is formed between the straight cylinder part (13) and the connecting part (12);
the wall thickness of the conical part (11) is equal to that of the straight cylinder part (13);
a notch (3) is formed at the connecting position of the aluminum pipe (2) and the copper pipe fitting (1).
2. A copper aluminum tube assembly according to claim 1 wherein the wall thickness of the connection portion (12) is 0.6mm.
3. A copper aluminum tube assembly according to claim 1, wherein the outer diameter of the straight tube portion (13) is 7mm.
4. A copper aluminum tube assembly according to claim 1 wherein the aluminum tube (2) has an outside diameter of 7mm and a wall thickness of 1mm.
5. A copper aluminum tube assembly according to claim 1 wherein the connecting portion (12) has an outer diameter of 5mm and an inner diameter of 3.8mm.
6. A copper aluminum pipe assembly according to claim 1, characterized in that at least one end of the aluminum pipe (2) is formed with an inner conical surface (21), the inner conical surface (21) being adapted to the conical portion (11).
7. A copper aluminum tube assembly according to claim 1 wherein the copper tube (1) and aluminum tube (2) are welded together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974586.6U CN220506088U (en) | 2023-04-26 | 2023-04-26 | Copper aluminum pipe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974586.6U CN220506088U (en) | 2023-04-26 | 2023-04-26 | Copper aluminum pipe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220506088U true CN220506088U (en) | 2024-02-20 |
Family
ID=89868361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320974586.6U Active CN220506088U (en) | 2023-04-26 | 2023-04-26 | Copper aluminum pipe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220506088U (en) |
-
2023
- 2023-04-26 CN CN202320974586.6U patent/CN220506088U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |