CN201725882U - Wire clamp for copper-aluminium equipment - Google Patents
Wire clamp for copper-aluminium equipment Download PDFInfo
- Publication number
- CN201725882U CN201725882U CN2010202559493U CN201020255949U CN201725882U CN 201725882 U CN201725882 U CN 201725882U CN 2010202559493 U CN2010202559493 U CN 2010202559493U CN 201020255949 U CN201020255949 U CN 201020255949U CN 201725882 U CN201725882 U CN 201725882U
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- copper
- aluminium
- wire
- wire clamp
- plate layer
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Abstract
The utility model discloses a wire clamp for copper-aluminium equipment and relates to the technical field of manufacture of a wire clamp for fixing of a wire and copper-aluminium transition in power transmission. The wire clamp for the copper-aluminium equipment comprises a wire pressing board and a wire board. The wire pressing board is connected on the upper surface of the wire board by a bolt. The wire board comprises an aluminium plate layer and a copper plate layer. The copper plate layer is molten and composited on the lower surface of the aluminium plate layer. The wire clamp for the copper-aluminium equipment composites two layers of different metal sheets by adopting the metal melting casting technology, completely solves the problem of cracking of copper-aluminium welding and also reduces the thickness of the copper plate layer to between 0.3 to 1mm so as to greatly save copper usage and relatively save about 60 to 80 percent of copper usage.
Description
Technical field
The utility model relates to the manufacturing technology field of the wire clamp that is used for fixing electric wire and copper-aluminium transition in a kind of electric power transfer.
Background technology
Copper and aluminium are the conductor materials of consumption maximum in the present electric field, in power engineering, being electrically connected of two kinds of materials of copper aluminium inevitably occur; As everyone knows; be in the primary cell of two kinds of metals formation that have different potentials in the electrolyte; it is the most typical form of couple corrosion; when especially both potential differences are greater than 0.75V; it is very active that couple corrosion becomes, and as adopting mechanical pressure (as bolt) two kinds of metals directly contacted, and will inevitably leave the gap on contact-making surface; when having electrolyte in the gap, primary cell inevitably forms.Simultaneously, the degradation speed of contact-making surface is further quickened in the corrosion that also can produce electrolysis of flowing of electric current.Therefore, in all kinds of relevant technical standards and the standard all with clear and definite regulation: the conductor of different materials must not directly be connected.
Existing wire clamp of copper-aluminum apparatus; usually adopt the welding of flash welding or friction welding (FW) fixing between its double layer of metal; because of the welding performance of copper aluminium (particularly aluminium) relatively poor; even if the welding of same material generally all will take corresponding householder method could obtain intensity preferably; need use welding powder as brazing; the aluminium weldering needs to adopt to isolate welds (as Buchholz protection); and the transition junction of wire clamp of copper-aluminum apparatus is the welding of two kinds of different metals; its manufacture is if adopt flash welding or friction welding; the intensity of its soldering opening can only reach the intensity level of the aluminium that intensity is minimum in two kinds of mother metals in the ideal case; owing to can not make the interface of two kinds of mother metals when welding, form " molten bath " fully and fully; the fusing point of aluminium is far below copper in addition; therefore its crystalline phase tissue does not reach mutually completely " fusion "; cause its microstructure inhomogeneous; wire clamp should bear wire tension when installing and work also will bear shearing; its connection area of the interface of flash welding or friction welding is less; its connection interface resistance is big; temperature rise is big; copper in addition; the thermal coefficient of expansion difference of aluminium; objectively can worsen the stress condition of interface; in addition; work moment acts on interface and causes stress to concentrate easily, thereby causes the fatigue fracture of wire clamp.
The utility model content
The utility model adopts the wire clamp of copper-aluminum apparatus that is welded to connect in order to solve, and occurs the problem of cracking easily, and the utility model provides a kind of wire clamp of copper-aluminum apparatus.
The utility model comprises tension disc, line plate, and described tension disc is connected by bolt on the upper surface of described line plate, and described line plate comprises aluminum layer, copper coin layer, and the fusion of described copper coin layer is compounded on the lower surface of described aluminum layer.
The utility model adopts the fusion foundry engieering of metal, the sheet material of two-layer different metal is combined with each other, thoroughly solved the problem that copper and aluminium welding picks out existing cracking, thickness with the copper coin layer is reduced to 0.3～1mm in addition, saved the consumption of copper greatly, it has saved the consumption of about 60～80% copper relatively.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Among the figure, 1, tension disc, 2, the line plate, 3, bolt, 4, aluminum layer, 5, the copper coin layer.
Embodiment
As shown in Figure 1, this wire clamp of copper-aluminum apparatus comprises tension disc 1, line plate 2, and tension disc 1 connects on the upper surface of online plate 2 by bolt 3, and line plate 2 comprises aluminum layer 4, copper coin layer 5, and 5 fusion of copper coin layer are compounded on the lower surface of aluminum layer 4.
Claims (1)
1. wire clamp of copper-aluminum apparatus comprises tension disc, line plate, and described tension disc is connected on the upper surface of described line plate by bolt, it is characterized in that described line plate comprises aluminum layer, copper coin layer, and the fusion of described copper coin layer is compounded on the lower surface of described aluminum layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202559493U CN201725882U (en) | 2010-07-06 | 2010-07-06 | Wire clamp for copper-aluminium equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202559493U CN201725882U (en) | 2010-07-06 | 2010-07-06 | Wire clamp for copper-aluminium equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725882U true CN201725882U (en) | 2011-01-26 |
Family
ID=43494230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202559493U Expired - Lifetime CN201725882U (en) | 2010-07-06 | 2010-07-06 | Wire clamp for copper-aluminium equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725882U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759645A (en) * | 2011-04-25 | 2012-10-31 | 湖北省电力公司随州供电公司 | Voltage wired copper-aluminum wiring clamp of electric meter provided with current transformer |
| CN104157994A (en) * | 2014-08-15 | 2014-11-19 | 国家电网公司 | Special clamp for grounding cable |
| CN115194414A (en) * | 2022-08-03 | 2022-10-18 | 国网福建省电力有限公司惠安县供电公司 | Novel copper-aluminum transition solution |
-
2010
- 2010-07-06 CN CN2010202559493U patent/CN201725882U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759645A (en) * | 2011-04-25 | 2012-10-31 | 湖北省电力公司随州供电公司 | Voltage wired copper-aluminum wiring clamp of electric meter provided with current transformer |
| CN104157994A (en) * | 2014-08-15 | 2014-11-19 | 国家电网公司 | Special clamp for grounding cable |
| CN115194414A (en) * | 2022-08-03 | 2022-10-18 | 国网福建省电力有限公司惠安县供电公司 | Novel copper-aluminum transition solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU CHANGYUAN ELECTRICAL EQUIPMENT CO., LTD. Free format text: FORMER NAME: YANGZHOU CHANGYUAN ELECTRIC EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 225200 Jiangsu province Jiang Ding Town Industrial Park City Patentee after: Jiangsu Changyuan Electrical Equipment Co., Ltd. Address before: 225200 Jiangsu province Jiang Ding Town Industrial Park City Patentee before: Yangzhou Changyuan Electric Equipment Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |
|
| CX01 | Expiry of patent term |