CN205790421U - Copper-aluminium transition connector and transformator - Google Patents
Copper-aluminium transition connector and transformator Download PDFInfo
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- CN205790421U CN205790421U CN201620507563.4U CN201620507563U CN205790421U CN 205790421 U CN205790421 U CN 205790421U CN 201620507563 U CN201620507563 U CN 201620507563U CN 205790421 U CN205790421 U CN 205790421U
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- aluminum matter
- patch panel
- aluminium transition
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Abstract
Copper-aluminium transition connector and transformator, relate to transition piece technical field, copper-aluminium transition connector includes being copper transit bridge, the first joint and the second joint, first joint and the second joint are connected to the two ends of transit bridge, first joint includes the first patch panel and for stacking the copper sheet that is welded in aluminum matter joint surface, first patch panel and described copper sheet and described aluminum matter joint stacking are also spirally connected fixing, described copper sheet between the first patch panel and described aluminum matter joint to isolate the first patch panel and described aluminum matter joint.Transformator includes transformer body, copper neutral connection, the earth bus of aluminum matter and above-mentioned copper-aluminium transition connector, described neutral connection is connected to the neutral point of transformer body, earth bus is provided with aluminum matter joint, described copper-aluminium transition connector the first joint is connected with described aluminum matter joint, and the second joint is connected with described neutral connection.
Description
Technical field
This utility model relates to transition piece technical field, is specifically related to the transition piece of copper aluminum.
Background technology
For avoiding electrochemical corrosion in power industry, copper and aluminum can not be directly connected to, and transition need to be used to connect
Mode.
Nowadays conventional copper-aluminium transition connector is as it is shown in figure 1, it includes being copper transit bridge 3, first
Joint 1 and the second joint 2, the first joint 1 and the second joint 2 be connected to the two ends of transit bridge 3, and
One joint 1 includes one piece of copper coin 13 and the first patch panel 11, described copper coin 13 end face and aluminum matter joint 5
End face docks, and uses the mode of flash welding or friction welding (FW) to be welded and fixed, and the first patch panel 11 passes through spiral shell again
The mode connect is fixed with described copper coin 13, and the second joint 2 is then connected fixing with copper joint.
The shortcoming of above-mentioned copper-aluminium transition connector has: described copper coin 13 is that end face docks with aluminum matter joint 5,
Contact area is little, thus causes copper-aluminium transition interface contact resistance big, in turn result in that temperature rise is big, easily heating,
The problems such as perishable and bearing capacity is weak；Described copper coin 13 uses with the copper-aluminium transition interface of aluminum matter joint 5
Flash welding or the welding manner of friction welding (FW), easily produce copper aluminum eutectic, and copper aluminum eutectic is more crisp, reduces
The mechanical strength of weld, by there is the risk ruptured during External Force Acting.
Summary of the invention
In view of this, this utility model provides a kind of copper-aluminium transition connector and uses this copper-aluminium transition connector
Transformator, the mechanical strength of copper-aluminium transition connector is relatively big, and the contact resistance at copper-aluminium transition interface is less.
For achieving the above object, this utility model provides techniques below scheme.
Copper-aluminium transition connector, including being copper transit bridge, the first joint and the second joint, first connects
Head and the second joint are connected to the two ends of transit bridge, and the first joint includes the first patch panel and for stacking
And it being welded in the copper sheet of aluminum matter joint surface, the first patch panel and described copper sheet and described aluminum matter joint stacking are also
Be spirally connected fixing, described copper sheet between the first patch panel and described aluminum matter joint with isolate the first patch panel and
Described aluminum matter joint.This is technical scheme 1.
Described copper sheet is stacking with described aluminum matter joint rather than end face docks, and contact area is big, contact resistance
Less, temperature rise is little, be difficult to heating and burn into bearing capacity is stronger.Also due to described copper sheet and described aluminum matter
Joint stacking, and described copper sheet isolated aluminum matter joint and the first copper patch panel so that the first patch panel
Also can stacking get on, and fixing connection by the way of bolt locking is spirally connected, thus ensure that copper-aluminium transition circle
Mask has bigger mechanical strength.
It is preferred that described copper sheet stretches out at least 2mm from the coverage of the first patch panel.Guarantee the first wiring
Plate will not come in contact with described aluminum matter joint.This is technical scheme 2.
It is preferred that the thickness of described copper sheet is 0.5mm～3mm.This is technical scheme 3.
It is preferred that the first patch panel surface is coated with tin layers.To improve its antiseptic property.This is technical scheme 4.
It is preferred that the surface-coated contacted with the first patch panel of described copper sheet has at least one of which conductive paste or all
Intellectual circle.Corrosion is caused to prevent humid air from entering.This is technical scheme 5.
Soldering it is welded as described in it is preferred that.Brazing quality is stable, it is adaptable to big electric current, heavy in section gold utensil,
The joint face of soldering is bright and clean, air-tightness good, geomery is stable, and technique is simple, reliable in quality, by it
Its condition is not easy fracture occur when affecting, be more suitable for the welding at copper-aluminium transition interface than flash welding and friction welding (FW).
This is technical scheme 6.
Transformator, the ground connection including transformer body, transition piece, copper neutral connection and aluminum matter is female
Line, described neutral connection is connected to the neutral point of transformer body, and earth bus is provided with aluminum matter joint, transition
Connector is provided with the first joint and the second joint, and the first joint is connected with described aluminum matter joint, the second joint with
Described neutral connection connects, and transition piece is the copper-aluminium transition connector described in any one of technical scheme 1-6.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of existing copper-aluminium transition connector；
Fig. 2 is the cross-sectional view of copper-aluminium transition connector of the present utility model.
Reference includes: the first joint 1, the first patch panel 11, copper sheet 12, copper coin 13, the second joint
2, transit bridge 3, bolt 4, aluminum matter joint 5.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is elaborated.
As in figure 2 it is shown, the copper-aluminium transition connector of the present embodiment includes first joint the 1, second joint 2 and mistake
Transfer bridge 3, above-mentioned three is all copper, and the first joint 1 and the second joint 2 connect and transit bridge 3 respectively
Two ends, the first joint 1 includes the first patch panel 11 and copper sheet 12, and the thickness of copper sheet 12 is preferably
0.5mm～3mm, copper sheet 12 and connected aluminum matter joint 5 surface stacking, and fix by the way of welding
On the surface of aluminum matter joint 5, the first patch panel 11 is layered on copper sheet 12 again, then by bolt 4 by the
One patch panel 11, copper sheet 12 and aluminum matter joint 5 are spirally connected fixing, as in figure 2 it is shown, copper sheet 12 is positioned at first
Between patch panel 11 and aluminum matter joint 5, thus both are isolated.In the present embodiment, copper sheet 12 and aluminum matter
Joint 5 is stacking rather than docking, and contact area (copper-aluminium transition interface) between the two is bigger, thus
Contact resistance is less, and temperature rise is little, is difficult to heating and corrosion, and bearing capacity is strong.Comparison diagram 1 and Fig. 2 understands,
In Fig. 2, the contact area at the copper-aluminium transition interface of the copper-aluminium transition connector of the present embodiment is existing much larger than in Fig. 1
The contact area at copper-aluminium transition interface a (weld) of some copper-aluminium transition connectors.Compare in Fig. 1 existing
Copper-aluminium transition connector only rely on the solder side that copper coin 13 docks with aluminum matter joint 5 end face realize fixing and
Speech, the first patch panel 11 of the copper-aluminium transition connector in the present embodiment and copper sheet 12 and aluminum matter joint 5 layers
Folding and passing through bolt 4 is spirally connected fixing, and mechanical strength is bigger.
In the present embodiment, copper sheet 12 is preferably soldering with the welding manner of aluminum matter joint 5, and brazing quality is stable,
Being applicable to big electric current, heavy in section gold utensil, the joint face of soldering is bright and clean, air-tightness good, geomery is stable,
And technique is simple, reliable in quality, is not easy appearance and ruptures, than flash welding and friction when being affected by other condition
Weldering is more suitable for the welding at copper-aluminium transition interface.Certainly, other welding manners also visual concrete condition selects.For
Guaranteeing that the first patch panel 11 will not come in contact with aluminum matter joint 5, copper coin 13 covers from the first patch panel 11
Lid scope stretches out at least 2mm.First patch panel 11 electroplating surfaces with tin, to improve its antiseptic property.Copper sheet 12
It is coated with conductive paste or vaseline with the contact surface of the first patch panel 11, causes to prevent humid air from entering
Corrosion.
Transformator includes that the earth bus of transformer body, copper neutral connection and aluminum matter (does not all show in figure
Go out), also include the above-mentioned copper-aluminium transition connector of the present embodiment, described neutral connection is connected to transformator master
The neutral point of body, earth bus is provided with aluminum matter joint, the first joint 1 of described copper-aluminium transition connector and institute
Stating aluminum matter joint to connect, the second joint 2 of described copper-aluminium transition connector is connected with described neutral connection.
The above disclosed preferred embodiment being only the invention, can not limit this with this certainly
The interest field of innovation and creation, the equivalent variations therefore made according to the invention claim, still belong to
The scope that the invention is contained.
Claims (7)
1. copper-aluminium transition connector, including being copper transit bridge, the first joint and the second joint, first
Joint and the second joint are connected to the two ends of transit bridge, it is characterized in that, the first joint includes the first wiring
Plate and be used for stacking and be welded in the copper sheet of aluminum matter joint surface, the first patch panel and described copper sheet and described aluminum
Matter joint stacking is also spirally connected fixing, described copper sheet between the first patch panel and described aluminum matter joint with isolation
First patch panel and described aluminum matter joint.
Copper-aluminium transition connector the most according to claim 1, is characterized in that, described copper sheet connects from first
The coverage of line plate stretches out at least 2mm.
Copper-aluminium transition connector the most according to claim 1, is characterized in that, the thickness of described copper sheet is
0.5mm～3mm.
Copper-aluminium transition connector the most according to claim 1, is characterized in that, the first patch panel plated surface
There is tin layers.
Copper-aluminium transition connector the most according to claim 1, is characterized in that, described copper sheet with first
The surface-coated of patch panel contact has at least one of which conductive paste or vaseline.
Copper-aluminium transition connector the most according to claim 1, is characterized in that, described in be welded as soldering.
7. transformator, including transformer body, transition piece, copper neutral connection and the ground connection of aluminum matter
Bus, described neutral connection is connected to the neutral point of transformer body, and earth bus is provided with aluminum matter joint, mistake
Crossing connector and be provided with the first joint and the second joint, the first joint is connected with described aluminum matter joint, the second joint
Being connected with described neutral connection, it is characterized in that, transition piece is the copper aluminum described in any one of claim 1-6
Transition piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620507563.4U CN205790421U (en) | 2016-05-30 | 2016-05-30 | Copper-aluminium transition connector and transformator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620507563.4U CN205790421U (en) | 2016-05-30 | 2016-05-30 | Copper-aluminium transition connector and transformator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205790421U true CN205790421U (en) | 2016-12-07 |
Family
ID=59978804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620507563.4U Active CN205790421U (en) | 2016-05-30 | 2016-05-30 | Copper-aluminium transition connector and transformator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205790421U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587054A (en) * | 2019-09-23 | 2019-12-20 | 天津市特变电工变压器有限公司 | Welding process of aluminum flat wire and copper stranded wire for oil-immersed distribution transformer product |
| CN112941574A (en) * | 2021-01-27 | 2021-06-11 | 许继电源有限公司 | Method for tin plating of external welding grounding copper conductor of cabinet |
| CN113422228A (en) * | 2021-08-23 | 2021-09-21 | 常州协和光电器件有限公司 | Corrosion-resistant circuit board assembly for car light |
| US11145434B2 (en) | 2019-05-08 | 2021-10-12 | Erico International Corporation | Low voltage power conductor and system |
-
2016
- 2016-05-30 CN CN201620507563.4U patent/CN205790421U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11145434B2 (en) | 2019-05-08 | 2021-10-12 | Erico International Corporation | Low voltage power conductor and system |
| US12080449B2 (en) | 2019-05-08 | 2024-09-03 | Erico International Corporation | Power conductor and system |
| CN110587054A (en) * | 2019-09-23 | 2019-12-20 | 天津市特变电工变压器有限公司 | Welding process of aluminum flat wire and copper stranded wire for oil-immersed distribution transformer product |
| CN110587054B (en) * | 2019-09-23 | 2021-12-14 | 天津市特变电工变压器有限公司 | Welding process of aluminum flat wire and copper stranded wire for oil-immersed distribution transformer product |
| CN112941574A (en) * | 2021-01-27 | 2021-06-11 | 许继电源有限公司 | Method for tin plating of external welding grounding copper conductor of cabinet |
| CN113422228A (en) * | 2021-08-23 | 2021-09-21 | 常州协和光电器件有限公司 | Corrosion-resistant circuit board assembly for car light |
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