CN201014083Y - Copper-aluminium welding pipe - Google Patents
Copper-aluminium welding pipe Download PDFInfo
- Publication number
- CN201014083Y CN201014083Y CNU2007200789431U CN200720078943U CN201014083Y CN 201014083 Y CN201014083 Y CN 201014083Y CN U2007200789431 U CNU2007200789431 U CN U2007200789431U CN 200720078943 U CN200720078943 U CN 200720078943U CN 201014083 Y CN201014083 Y CN 201014083Y
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- Prior art keywords
- pipe
- copper
- aluminum
- aluminum pipe
- utility
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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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Abstract
The utility model discloses a copper and aluminum welded pipe, comprising a copper pipe and an aluminum one. One end of the copper pipe welded with the aluminum pipe is provided with a tapered convex ring, and the outer diameter of the copper pipe is equal to the inner diameter of the aluminum pipe. The utility model has the advantages of low material cost, strong welding, no easy leakage, simple technics, easy control for the welding quality, and corrosion resistance. The utility model is applied to an evaporator pipe in a refrigerator or a freezer.
Description
Affiliated technical field
The utility model relates to the accessory of chiller plant, especially the circulating line of vaporizer in refrigerator, the refrigerator-freezer.
Background technique
At present, the vaporizer in most refrigerators, the refrigerator-freezer through being made of welded connection, and is the butt joint welding by many metal tubes.The shortcoming of this welding manner is that because tube wall is thinner, solder joint is many, it is little to be welded to connect area, insecure, and welding quality is difficult to guarantee, cause the solder joint place easily to reveal, and can only adopt the pipe (mostly being copper pipe) of metal of the same race to weld, cost of material is higher relatively.The evaporator tube that adopts copper and aluminium welding to connect is also arranged, but between two tube walls that have the space is arranged, because the effect of potential difference easily produces corrosion to tube wall, corrosion resistance is relatively poor, influences working life; The welding procedure complexity that has, cost is higher.
The model utility content
In order to overcome the deficiency that welding manner is taken in the vaporizer copper and aluminium welding in existing refrigerator, the refrigerator-freezer, the utility model provides lower, the difficult leakage of a kind of cost, welding quality is controlled easily and corrosion resistant copper and aluminium welding is taken over.
The technological scheme that its technical problem that solves the utility model adopts is: copper and aluminium welding is taken over, and comprises copper pipe and aluminum pipe, and an end of copper pipe and Al pipe butt welding has the bulge loop of a taper, and the external diameter of copper pipe equals the internal diameter of aluminum pipe.
Copper pipe inserts in the aluminum pipe, and is welded on the aluminum pipe inwall; Bulge loop maximum outside diameter on the copper pipe equals the external diameter of aluminum pipe.
The beneficial effects of the utility model are, owing to substituted most copper pipe with aluminum pipe, cost of material reduces, and copper pipe is littler than the diameter of aluminum pipe in addition, has saved material, has also reduced cost; And drive fit does not have the gap between two tube walls, has avoided producing potential difference between the two, and causes the corrosion to inner tube wall, and bonding area is bigger, firmly be difficult for revealing, and technology is simple, and easy to operate, welding quality is controlled easily.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is an aluminum pipe structural representation in the utility model;
Fig. 3 is a copper pipe structural representation in the utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As Fig. 1,2,3, copper and aluminium welding is taken over by copper pipe 1 and is inserted in the aluminum pipe 2, and copper pipe 1 has a taper bulge loop 1.1 with an end of aluminum pipe 2 welding, and its maximum outside diameter equals the external diameter of aluminum pipe 2, and the external diameter of copper pipe 1 equals the internal diameter of aluminum pipe 2.Copper pipe 1 inserts in the aluminum pipe 2, and adopts the resistance welding mode to be welded on aluminum pipe 2 inwalls.
In conjunction with the accompanying drawings embodiment of the present utility model has been carried out exemplary description above, obviously the utility model is not limited thereto, and the various remodeling that carry out in the utility model scope all do not exceed protection domain of the present utility model.
Claims (3)
1. a copper and aluminium welding is taken over, and comprises copper pipe (1) and aluminum pipe (2), it is characterized in that, an end of copper pipe (1) and aluminum pipe (2) welding has the bulge loop (1.1) of a taper, and the external diameter of copper pipe (1) equals the internal diameter of aluminum pipe (2).
2. copper and aluminium welding according to claim 1 is taken over, and it is characterized in that, described copper pipe (1) inserts in the aluminum pipe (2), and is welded on aluminum pipe (2) inwall.
3. copper and aluminium welding according to claim 1 is taken over, and it is characterized in that described bulge loop (1.1) maximum outside diameter equals the external diameter of aluminum pipe (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007200789431U CN201014083Y (en) | 2007-03-30 | 2007-03-30 | Copper-aluminium welding pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007200789431U CN201014083Y (en) | 2007-03-30 | 2007-03-30 | Copper-aluminium welding pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201014083Y true CN201014083Y (en) | 2008-01-30 |
Family
ID=39025877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2007200789431U Expired - Fee Related CN201014083Y (en) | 2007-03-30 | 2007-03-30 | Copper-aluminium welding pipe |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201014083Y (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103753008A (en) * | 2013-12-19 | 2014-04-30 | 绥阳县华丰电器有限公司 | Resistance welding method of copper pipe flaring in copper and aluminum thin-walled tube |
CN105201780A (en) * | 2014-06-05 | 2015-12-30 | 泰州乐金电子冷机有限公司 | Handheld-type air suction pipe for refrigerator |
CN106322029A (en) * | 2016-08-31 | 2017-01-11 | 新昌县开铭制冷配件有限公司 | Connecting pipe for air conditioner refrigeration pipes |
CN106352175A (en) * | 2016-08-31 | 2017-01-25 | 新昌县开铭制冷配件有限公司 | Connecting pipe used in the cooling pipe of air-conditioning machinery |
-
2007
- 2007-03-30 CN CNU2007200789431U patent/CN201014083Y/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103753008A (en) * | 2013-12-19 | 2014-04-30 | 绥阳县华丰电器有限公司 | Resistance welding method of copper pipe flaring in copper and aluminum thin-walled tube |
CN105201780A (en) * | 2014-06-05 | 2015-12-30 | 泰州乐金电子冷机有限公司 | Handheld-type air suction pipe for refrigerator |
CN105201780B (en) * | 2014-06-05 | 2017-12-01 | 泰州乐金电子冷机有限公司 | Refrigerator hand held air intake duct |
CN106322029A (en) * | 2016-08-31 | 2017-01-11 | 新昌县开铭制冷配件有限公司 | Connecting pipe for air conditioner refrigeration pipes |
CN106352175A (en) * | 2016-08-31 | 2017-01-25 | 新昌县开铭制冷配件有限公司 | Connecting pipe used in the cooling pipe of air-conditioning machinery |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 |