CN202997063U - Copper-aluminium connecting pipe - Google Patents
Copper-aluminium connecting pipe Download PDFInfo
- Publication number
- CN202997063U CN202997063U CN 201320013733 CN201320013733U CN202997063U CN 202997063 U CN202997063 U CN 202997063U CN 201320013733 CN201320013733 CN 201320013733 CN 201320013733 U CN201320013733 U CN 201320013733U CN 202997063 U CN202997063 U CN 202997063U
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- CN
- China
- Prior art keywords
- connecting pipe
- copper
- pipe fitting
- wiring hole
- aluminum body
- 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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Abstract
The utility model discloses a copper-aluminium connecting pipe consisting of a aluminium body and a copper pipe, wherein the two ends of the aluminium body are provided with wire connecting holes, and the copper pipe is arranged at a wire connecting hole which is arranged at an end of the aluminium body. The copper-aluminium connecting pipe in the utility model is advantaged by low manufacture cost, and good utilization effects.
Description
Technical field
The utility model belongs to wire-connection hardware fitting structure design field, is specifically related to a kind of Cu-Al connecting pipe.
Background technology
Electric power transfer connect and power distribution equipment in often aluminium cable need to be connected with copper cable, the couple corrosion of generation, select Cu-Al connecting pipe to connect usually when avoiding copper cable directly to be connected with aluminium cable.
Cu-Al connecting pipe in the market be mostly the aluminum end is docked with the copper end after the welding, its structure as shown in Figure 1, this Cu-Al connecting pipe copper consumption is large, manufacturing cost is high; Simultaneously, the copper-aluminium transition cross section is little, installs and bears for a long time on the line wire to the pulling force of copper-aluminium transition face, the copper-aluminium transition solder side is formed destroy, in use resistance is excessive, temperature rise is too high to cause product, and easily produces phenomenon of rupture, affects the normal operation of electric power system.
The utility model content
For Cu-Al connecting pipe above shortcomings in the market, the purpose of this utility model is to provide a kind of cheap for manufacturing cost and good Cu-Al connecting pipe of result of use.
The technical scheme that realizes the utility model purpose is:
A kind of Cu-Al connecting pipe, this Cu-Al connecting pipe is made of aluminum body and the copper pipe fitting that two ends are provided with wiring hole; Described copper pipe fitting is arranged in the described wiring hole of described aluminum body one end.
In technique scheme, described copper pipe fitting is embedded in described wiring hole, and described copper pipe fitting and described wiring hole are interference fit.
In technique scheme, be provided with the brazing layer that described aluminum body and described copper pipe fitting welding are integrated between described copper pipe fitting outer wall and described wiring hole inwall.
In technique scheme, the two ends external diameter in the same size of described aluminum body.
In technique scheme, an end external diameter of described aluminum body is large, and other end external diameter is little.
The utlity model has positive effect:
Cu-Al connecting pipe in the utility model is made of aluminum body and the copper pipe fitting that two ends are provided with wiring hole; Described copper pipe fitting is arranged in the described wiring hole of described aluminum body one end.Adopt said structure to reduce the use amount of copper material, therefore reduced manufacturing cost; Increased simultaneously the copper-aluminium transition area, resistance is low, temperature rise is little, and has higher mechanical strength, even circuit overload can fracture yet, thereby has good result of use.
Description of drawings
Fig. 1 is a kind of structural representation of Cu-Al connecting pipe in the market;
Fig. 2 is the first structural representation of the Cu-Al connecting pipe in embodiment 1;
Fig. 3 is the second structural representation of the Cu-Al connecting pipe in embodiment 1;
Fig. 4 is a kind of structural representation of the Cu-Al connecting pipe in embodiment 2;
Reference numeral shown in figure is: the 1-wiring hole; The 2-aluminum body; 3-copper pipe fitting; The 4-brazing layer.
Embodiment
(embodiment 1)
As shown in the figure, a kind of Cu-Al connecting pipe, it is made of aluminum body 2 and the copper pipe fitting 3 that two ends are provided with wiring hole 1; Described copper pipe fitting 3 is arranged in the described wiring hole 1 of described aluminum body 2 one ends.
Adopt such scheme can reduce the use amount of copper material, thereby reduced manufacturing cost; Increased simultaneously the copper-aluminium transition area, resistance is low, temperature rise is little, and has higher mechanical strength, even circuit overload can fracture yet, thereby has good result of use.
In order to realize being connected of aluminum body 2 and copper pipe fitting 3, in the present embodiment by described copper pipe fitting 3 is embedded in described wiring hole 1, and described copper pipe fitting 3 is interference fit with described wiring hole 1, and said structure can be realized by the casting processing technology in the specific implementation.
Referring to Fig. 2, the two ends external diameter in the same size of described aluminum body 2 adopts the Cu-Al connecting pipe of this structure only to need in use a secondary pressing mold can complete the crimping of copper cash end and aluminum steel end, need not change the pressing mold of different size, avoided changing the loaded down with trivial details of pressing mold, it is more convenient to install.
Referring to Fig. 3, as a kind of distortion of said structure, an end external diameter of described aluminum body 2 is large, and other end external diameter is little.Use when adopting this structure to differ larger in the specification of wire to be connected, as 300mm
2With 50mm
2The connection of wire, result of use is good, has reduced simultaneously the aluminium use amount, has reduced manufacturing cost.
(embodiment 2)
The present embodiment is substantially the same manner as Example 1, difference is: in the Cu-Al connecting pipe of the present embodiment, be provided with the brazing layer 4 that described aluminum body 2 and described copper pipe fitting 3 are welded as a whole between described copper pipe fitting 3 outer walls and described wiring hole 1 inwall, specifically can be referring to Fig. 4.By adopting the high-performance scolder that aluminum body 2 and copper pipe fitting 3 closely are welded as a whole, can not produce the gap between the two in the present embodiment, the transition section is large, and electric conductivity is better, and resistance is less, and temperature rise is lower.
Obviously, above-described embodiment of the present utility model is only for the utility model example clearly is described, and is not to be restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (5)
1. Cu-Al connecting pipe is characterized in that: this Cu-Al connecting pipe is made of aluminum body (2) and the copper pipe fitting (3) that two ends are provided with wiring hole (1); Described copper pipe fitting (3) is arranged in the described wiring hole (1) of described aluminum body (2) one ends.
2. Cu-Al connecting pipe according to claim 1, it is characterized in that: described copper pipe fitting (3) is embedded in described wiring hole (1), and described copper pipe fitting (3) is interference fit with described wiring hole (1).
3. Cu-Al connecting pipe according to claim 1, is characterized in that: be provided with the brazing layer (4) that described aluminum body (2) and described copper pipe fitting (3) are welded as a whole between described copper pipe fitting (3) outer wall and described wiring hole (1) inwall.
4. the described Cu-Al connecting pipe of any one according to claim 1 to 3, is characterized in that: the two ends external diameter in the same size of described aluminum body (2).
5. the described Cu-Al connecting pipe of any one according to claim 1 to 3, it is characterized in that: an end external diameter of described aluminum body (2) is large, and other end external diameter is little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013733 CN202997063U (en) | 2013-01-10 | 2013-01-10 | Copper-aluminium connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013733 CN202997063U (en) | 2013-01-10 | 2013-01-10 | Copper-aluminium connecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202997063U true CN202997063U (en) | 2013-06-12 |
Family
ID=48568195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320013733 Expired - Fee Related CN202997063U (en) | 2013-01-10 | 2013-01-10 | Copper-aluminium connecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202997063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299620A (en) * | 2019-07-22 | 2019-10-01 | 山东厚俞实业有限公司 | A kind of copper aluminium splicing sleeve |
-
2013
- 2013-01-10 CN CN 201320013733 patent/CN202997063U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299620A (en) * | 2019-07-22 | 2019-10-01 | 山东厚俞实业有限公司 | A kind of copper aluminium splicing sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20150110 |
|
| EXPY | Termination of patent right or utility model |