CN210397994U - Reducing integrated resistance welding copper-aluminum connecting pipe - Google Patents
Reducing integrated resistance welding copper-aluminum connecting pipe Download PDFInfo
- Publication number
- CN210397994U CN210397994U CN201920830272.2U CN201920830272U CN210397994U CN 210397994 U CN210397994 U CN 210397994U CN 201920830272 U CN201920830272 U CN 201920830272U CN 210397994 U CN210397994 U CN 210397994U
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- CN
- China
- Prior art keywords
- section
- pipe
- copper
- copper pipe
- aluminum
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- 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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- 238000003466 welding Methods 0.000 title claims abstract description 18
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 title claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910052802 copper Inorganic materials 0.000 claims abstract description 70
- 239000010949 copper Substances 0.000 claims abstract description 70
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 43
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000005219 brazing Methods 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The utility model relates to a reducing integrated resistance welding copper-aluminum connecting pipe, including reducing aluminum pipe and copper pipe, the reducing aluminum pipe includes integrated into one piece's first section, changeover portion and second section, the internal diameter of first section is less than the internal diameter of second section, the external diameter of copper pipe is less than the internal diameter of second section, the copper pipe stretches into in the second section, the changeover portion is loudspeaker form, the tip of copper pipe is equipped with the contact surface that matches with the changeover portion, the contact surface contacts with the changeover portion, the inner wall of second section is equipped with the guide ring, the guide ring contacts with the copper pipe, the guide ring welds fixed connection with second section resistance, the cover is equipped with the sealing ring on the copper pipe, the sealing ring imbeds in the second section, the sealing ring simultaneously with copper pipe and second section interference fit, the utility model discloses an axis of copper pipe lies in the same straight line with the axis of aluminum pipe, the uniformity is high, meanwhile, the copper pipe and the aluminum pipe are connected stably and have good reliability.
Description
Technical Field
The utility model relates to a copper aluminium connecting pipe, especially the integrative resistance welding copper aluminium connecting pipe of reducing.
Background
At present, more and more pipelines of evaporators adopt the combination of copper pipes and aluminum pipes to reduce cost, however, the melting points of the copper pipes and the aluminum pipes have large difference, so that the copper-aluminum connecting pipes are needed to realize the connection of the copper pipes and the aluminum pipes.
Disclosure of Invention
The utility model aims at providing a copper aluminium connecting pipe is welded to copper aluminium pipe on same straight line, the integrative resistance of reducing of good reliability.
Realize the utility model discloses the technical scheme of purpose as follows:
reducing integrative resistance welds copper aluminium connecting pipe, including reducing aluminum pipe and copper pipe, the reducing aluminum pipe includes integrated into one piece's first section, changeover portion and second section, the internal diameter of first section is less than the internal diameter of second section, the external diameter of copper pipe is less than the internal diameter of second section, the copper pipe stretches into in the second section, the changeover portion is the loudspeaker form, the tip of copper pipe is equipped with the contact surface that matches with the changeover portion, contact surface and changeover portion contact, the inner wall of second section is equipped with the guide ring, guide ring and copper pipe contact, guide ring and second section resistance weld fixed connection, the cover is equipped with the sealing ring on the copper pipe, in the sealing ring embedding second section, the sealing ring simultaneously with copper pipe and second section interference fit.
After adopting above-mentioned structure, during the preparation of copper aluminium connecting pipe, the copper pipe is led to the copper pipe through the guide ring when inserting in the second section of aluminum pipe, the effect that the guide ring played the support to the copper pipe after the copper pipe inserted the second section of aluminum pipe, and the guide ring has guaranteed that the axis of copper pipe and aluminum pipe is located same straight line, the sealing ring has improved the leakproofness between copper pipe and the aluminum pipe, and the fixed connection of copper pipe and aluminum pipe has been realized to the interference fit of sealing ring and copper pipe, aluminum pipe, simple to operate, the joint strength of copper pipe and aluminum pipe is high, the utility model discloses an axis of copper pipe and the axis of aluminum pipe are located same straight line, the uniformity is high, copper pipe, aluminum pipe connection stability simultaneously, good reliability.
Preferably, in order to improve the connection strength between the copper pipe and the aluminum pipe, a plurality of welding holes are formed in the sealing ring, a gap is formed between the sealing ring and the guide ring, a brazing filler metal layer is arranged in the gap and the welding holes, and the sealing ring, the second section and the copper pipe are fixedly connected through brazing of the brazing filler metal layer.
Preferably, in order to facilitate the insertion of the copper pipe, a guide fillet is arranged on the guide ring.
Preferably, in order to reduce the change of the flow rate of the medium flowing through the copper-aluminum connecting pipe and reduce the vibration of the pipeline, the inner diameter of the copper pipe is the same as that of the first section.
Preferably, in order to improve the structural strength of the reducing aluminum pipe, the outer wall of the aluminum pipe is provided with a plurality of reinforcing ribs extending from the first section to the second section.
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 view of the present invention.
In the figure: 1 is the copper pipe, 2 is first section, 3 is the changeover portion, 4 is the second section, 5 is the contact surface, 6 guide rings, 7 is the direction fillet, 8 is the sealing ring, 9 is the welding hole, 10 is the space, 11 is the brazing filler metal layer, 12 is the strengthening rib.
Detailed Description
As can be seen from figures 1 and 2, the reducing integrated resistance welding copper-aluminum connecting pipe of the utility model comprises a reducing aluminum pipe and a copper pipe 1, wherein the reducing aluminum pipe comprises a first section 2, a transition section 3 and a second section 4 which are integrally formed, the inner diameter of the first section is smaller than that of the second section, the outer diameter of the copper pipe is smaller than that of the second section, the copper pipe is the same as that of the first section, the copper pipe extends into the second section, the transition section is horn-shaped, the end part of the copper pipe is provided with a contact surface 5 matched with the transition section, the contact surface is contacted with the transition section, the inner wall of the second section is provided with a guide ring 6, the guide ring is provided with a guide fillet 7, the guide ring is contacted with the copper pipe, the guide ring is fixedly connected with the second section resistance welding, the copper pipe is sleeved with a sealing ring 8, the sealing ring is embedded into the second section, and the, the sealing ring is provided with a plurality of welding holes 9, a gap 10 is arranged between the sealing ring and the guide ring, a brazing filler metal layer 11 is arranged in the gap and the welding holes, the sealing ring, the second section and the copper pipe are fixedly connected through brazing filler metal layer, and the outer wall of the aluminum pipe is provided with a plurality of reinforcing ribs 12 extending from the first section to the second section.
After adopting above-mentioned structure, during the preparation of copper aluminium connecting pipe, the copper pipe is led to the copper pipe through the guide ring when inserting in the second section of aluminum pipe, the effect that the guide ring played the support to the copper pipe after the copper pipe inserted the second section of aluminum pipe, and the guide ring has guaranteed that the axis of copper pipe and aluminum pipe is located same straight line, the sealing ring has improved the leakproofness between copper pipe and the aluminum pipe, and the fixed connection of copper pipe and aluminum pipe has been realized to the interference fit of sealing ring and copper pipe, aluminum pipe, simple to operate, the joint strength of copper pipe and aluminum pipe is high, the utility model discloses an axis of copper pipe and the axis of aluminum pipe are located same straight line, the uniformity is high, copper pipe, aluminum pipe connection stability simultaneously, good reliability.
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 (5)
1. Reducing integrated resistance welding copper-aluminum connecting pipe, its characterized in that: including reducing aluminum pipe and copper pipe, the reducing aluminum pipe includes integrated into one piece's first section, changeover portion and second section, the internal diameter of first section is less than the internal diameter of second section, the external diameter of copper pipe is less than the internal diameter of second section, the copper pipe stretches into in the second section, the changeover portion is the loudspeaker form, the tip of copper pipe is equipped with the contact surface that matches with the changeover portion, the contact surface contacts with the changeover portion, the inner wall of second section is equipped with the guide ring, guide ring and copper pipe contact, guide ring and second section resistance weld fixed connection, the cover is equipped with the sealing ring on the copper pipe, in the sealing ring embedding second section, the sealing ring simultaneously with copper pipe and second section interference fit.
2. The variable-diameter integrated resistance welding copper-aluminum connecting pipe as claimed in claim 1, wherein: the sealing ring is provided with a plurality of welding holes, a gap is formed between the sealing ring and the guide ring, a brazing filler metal layer is arranged in the gap and the welding holes, and the sealing ring, the second section and the copper pipe are fixedly connected through brazing of the brazing filler metal layer.
3. The variable-diameter integrated resistance welding copper-aluminum connecting pipe as claimed in claim 1, wherein: and a guide round angle is arranged on the guide ring.
4. The variable-diameter integrated resistance welding copper-aluminum connecting pipe as claimed in claim 1, wherein: the copper tube has the same inner diameter as the first section.
5. The variable-diameter integrated resistance welding copper-aluminum connecting pipe as claimed in claim 1, wherein: the outer wall of the aluminium tube is provided with a plurality of reinforcing ribs extending from the first section to the second section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920830272.2U CN210397994U (en) | 2019-06-03 | 2019-06-03 | Reducing integrated resistance welding copper-aluminum connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920830272.2U CN210397994U (en) | 2019-06-03 | 2019-06-03 | Reducing integrated resistance welding copper-aluminum connecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397994U true CN210397994U (en) | 2020-04-24 |
Family
ID=70346513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920830272.2U Expired - Fee Related CN210397994U (en) | 2019-06-03 | 2019-06-03 | Reducing integrated resistance welding copper-aluminum connecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210397994U (en) |
-
2019
- 2019-06-03 CN CN201920830272.2U patent/CN210397994U/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 |