CN210400119U - Copper-aluminum joint with high mechanical strength - Google Patents
Copper-aluminum joint with high mechanical strength Download PDFInfo
- Publication number
- CN210400119U CN210400119U CN201920829962.6U CN201920829962U CN210400119U CN 210400119 U CN210400119 U CN 210400119U CN 201920829962 U CN201920829962 U CN 201920829962U CN 210400119 U CN210400119 U CN 210400119U
- Authority
- CN
- China
- Prior art keywords
- groove
- reinforcing
- branch
- annular groove
- copper
- 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.)
- Expired - Fee Related
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- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 65
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 38
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052802 copper Inorganic materials 0.000 claims abstract description 38
- 239000010949 copper Substances 0.000 claims abstract description 38
- 238000005219 brazing Methods 0.000 claims abstract description 28
- 239000000945 filler Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
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- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model relates to a copper aluminum joint with high mechanical strength, which comprises a copper pipe and an aluminum pipe, wherein the end part of the copper pipe is provided with a first ring groove, a plurality of first branch grooves communicated with the first ring groove and a plurality of first reinforcing grooves respectively corresponding to the first branch grooves one by one, the end part of the aluminum pipe is provided with a second ring groove, a plurality of second branch grooves communicated with the second ring groove and a plurality of second reinforcing grooves respectively corresponding to the second branch grooves one by one, the reinforcing ring is sleeved at the joint of the copper pipe and the aluminum pipe, a brazing filler metal layer is arranged in the first ring groove, the first branch groove, the first reinforcing groove, the second ring groove, the second branch groove and the second reinforcing groove, the brazing filler metal layer in the first ring groove, the first branch groove, the first reinforcing groove, the second ring groove, the second branch groove and the second reinforcing groove is of an integral structure, the copper pipe, the aluminum pipe and the reinforcing rings are fixedly connected through the brazing filler, the utility model discloses mechanical strength is high, and is not fragile.
Description
Technical Field
The utility model relates to a copper aluminum joint, especially copper aluminum joint that mechanical strength is high.
Background
At present, more and more evaporators adopt the combined use of aluminum pipes and copper pipes to reduce the cost, however, the melting points of the copper pipes and the aluminum pipes have larger difference, the copper pipes and the aluminum pipes are generally connected through copper-aluminum joints, the mechanical strength of the existing copper-aluminum joints is lower, and the copper-aluminum joints are easy to break when being influenced by vibration or external force, so that the evaporator fails.
Disclosure of Invention
The utility model aims at providing a copper aluminium joint that reliability is high, mechanical strength is high.
Realize the utility model discloses the technical scheme of purpose as follows:
the copper-aluminum joint with high mechanical strength comprises a copper pipe and an aluminum pipe, wherein a first annular groove, a plurality of first branch grooves communicated with the first annular groove and a plurality of first reinforcing grooves corresponding to the first branch grooves one to one are formed in the end portion of the copper pipe, a second annular groove, a plurality of second branch grooves communicated with the second annular groove and a plurality of second reinforcing grooves corresponding to the second branch grooves one to one are formed in the end portion of the aluminum pipe, a reinforcing ring is sleeved at the joint of the copper pipe and the aluminum pipe, a brazing material layer is arranged in the first annular groove, the first branch grooves, the first reinforcing grooves, the second annular groove, the second branch grooves and the second reinforcing grooves, the brazing material layer in the first annular groove, the first branch grooves, the first reinforcing grooves, the second annular groove, the second branch grooves and the second reinforcing grooves is of an integrated structure, and the copper pipe, the aluminum pipe and the reinforcing rings are fixedly connected through brazing of the brazing material layer.
After adopting above-mentioned structure, copper pipe and aluminum pipe pass through brazing filler metal fixed connection that brazes, and the structure through first ring channel, first supporting groove, first reinforcing groove, second ring channel, second supporting groove and second reinforcing groove reduces the influence that copper pipe, aluminum pipe received the power on the axial to improve the joint strength of beaded finish and copper pipe, aluminum pipe, can reduce the influence that copper pipe, aluminum pipe received power on the radial direction through the beaded finish, improve the mechanical strength that copper aluminium connects, the utility model discloses mechanical strength is high, and is not fragile.
Preferably, in order to improve the connection between the reinforcing ring and the copper pipe or the aluminum pipe, a connecting groove is formed in the inner ring of the reinforcing ring, a brazing filler metal layer is also arranged in the connecting groove, and the brazing filler metal layer in the connecting groove, the first annular groove, the first branch groove, the first reinforcing groove, the second annular groove, the second branch groove and the second reinforcing groove is of an integral structure.
Preferably, in order to improve the connection between the reinforcing ring and the copper pipe or the aluminum pipe, a third annular groove is formed in the copper pipe, a fourth annular groove is formed in the aluminum pipe, a plurality of first through holes communicated with the third annular groove and a plurality of second through holes communicated with the fourth annular groove are formed in the reinforcing ring, an integrally formed first reinforcing brazing filler metal layer is arranged in the third annular groove and the first through holes, and an integrally formed second reinforcing brazing filler metal layer is arranged in the fourth annular groove and the second through holes.
Preferably, in order to reduce the influence of the axial force on the copper pipe and the aluminum pipe, the width of the first reinforcing groove is greater than that of the first branch groove, and the width of the second reinforcing groove is greater than that of the second branch groove.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the first annular groove, the first supporting groove, the first reinforcing groove, the second annular groove, the second supporting groove and the second reinforcing groove of the present invention.
In the figure: the copper pipe is 1, the aluminum pipe is 2, the first annular groove is 3, the first supporting groove is 4, the first reinforcing groove is 5, the second annular groove is 6, the second supporting groove is 7, the second reinforcing groove is 8, the reinforcing ring is 9, the brazing filler metal layer is 10, the connecting groove is 11, the third annular groove is 12, the fourth annular groove is 13, the first through hole is 14, the second through hole is 15, the first reinforcing brazing filler metal layer is 16, and the second reinforcing brazing filler metal layer is 17.
Detailed Description
It can be known from fig. 1 and 2 that the copper-aluminum joint with high mechanical strength comprises a copper pipe 1 and an aluminum pipe 2, the end of the copper pipe is provided with a first annular groove 3, a plurality of first branch grooves 4 communicated with the first annular groove and a plurality of first reinforcing grooves 5 respectively corresponding to the first branch grooves one by one, the end of the aluminum pipe is provided with a second annular groove 6, a plurality of second branch grooves 7 communicated with the second annular groove and a plurality of second reinforcing grooves 8 respectively corresponding to the second branch grooves one by one, the joint of the copper pipe and the aluminum pipe is sleeved with a reinforcing ring 9, the width of the first reinforcing groove is larger than that of the first branch groove, the width of the second reinforcing groove is larger than that of the second branch groove, a brazing material layer 10 is arranged in the first annular groove, the first branch groove, the first reinforcing groove, the second annular groove, the second branch groove and the second reinforcing groove, and the copper pipe, the aluminum pipe and the reinforcing ring are fixedly connected by brazing, the inner ring of the reinforcing ring is provided with a connecting groove 11, a brazing filler metal layer is also arranged in the connecting groove, the first annular groove, the first branch groove, the first reinforcing groove, the second annular groove, the second branch groove and the brazing filler metal layer in the second reinforcing groove are of an integrated structure, the copper pipe is provided with a third annular groove 12, the aluminum pipe is provided with a fourth annular groove 13, the reinforcing ring is provided with a plurality of first through holes 14 communicated with the third annular groove and a plurality of second through holes 15 communicated with the fourth annular groove, the third annular groove and the first through holes are internally provided with a first reinforcing brazing filler metal layer 16 which is integrally formed, and the fourth annular groove and the second through holes are internally provided with a second reinforcing brazing filler metal layer 17 which is integrally formed.
After adopting above-mentioned structure, copper pipe and aluminum pipe pass through brazing filler metal fixed connection that brazes, and the structure through first ring channel, first supporting groove, first reinforcing groove, second ring channel, second supporting groove and second reinforcing groove reduces the influence that copper pipe, aluminum pipe received the power on the axial to improve the joint strength of beaded finish and copper pipe, aluminum pipe, can reduce the influence that copper pipe, aluminum pipe received power on the radial direction through the beaded finish, improve the mechanical strength that copper aluminium connects, the utility model discloses mechanical strength is high, and is not fragile.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (4)
1. Copper aluminium joint that mechanical strength is high, including copper pipe and aluminum pipe, its characterized in that: the end part of the copper pipe is provided with a first annular groove, a plurality of first branch grooves communicated with the first annular groove and a plurality of first reinforcing grooves corresponding to the first branch grooves one to one, the end part of the aluminum pipe is provided with a second annular groove, a plurality of second branch grooves communicated with the second annular groove and a plurality of second reinforcing grooves corresponding to the second branch grooves one to one, a reinforcing ring is sleeved at the joint of the copper pipe and the aluminum pipe, a brazing material layer is arranged in the first annular groove, the first branch grooves, the first reinforcing grooves, the second annular groove, the second branch grooves and the second reinforcing grooves, and the copper pipe, the aluminum pipe and the reinforcing ring are fixedly connected through brazing material layer.
2. The high mechanical strength copper-aluminum joint as recited in claim 1, wherein: the inner ring of the reinforcing ring is provided with a connecting groove, a brazing filler metal layer is also arranged in the connecting groove, and the brazing filler metal layer in the connecting groove, the first annular groove, the first branch groove, the first reinforcing groove, the second annular groove, the second branch groove and the second reinforcing groove is of an integrated structure.
3. The high mechanical strength copper-aluminum joint as recited in claim 1, wherein: the copper pipe is provided with a third annular groove, the aluminum pipe is provided with a fourth annular groove, the reinforcing ring is provided with a plurality of first through holes communicated with the third annular groove and a plurality of second through holes communicated with the fourth annular groove, the third annular groove and the first through holes are internally provided with a first reinforcing brazing filler metal layer which is integrally formed, and the fourth annular groove and the second through holes are internally provided with a second reinforcing brazing filler metal layer which is integrally formed.
4. The high mechanical strength copper-aluminum joint as recited in claim 1, wherein: the width of the first reinforcing groove is larger than that of the first branch groove, and the width of the second reinforcing groove is larger than that of the second branch groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920829962.6U CN210400119U (en) | 2019-06-03 | 2019-06-03 | Copper-aluminum joint with high mechanical strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920829962.6U CN210400119U (en) | 2019-06-03 | 2019-06-03 | Copper-aluminum joint with high mechanical strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210400119U true CN210400119U (en) | 2020-04-24 |
Family
ID=70347847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920829962.6U Expired - Fee Related CN210400119U (en) | 2019-06-03 | 2019-06-03 | Copper-aluminum joint with high mechanical strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210400119U (en) |
-
2019
- 2019-06-03 CN CN201920829962.6U patent/CN210400119U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |