CN202454736U - Copper-aluminum equipment wire clip - Google Patents
Copper-aluminum equipment wire clip Download PDFInfo
- Publication number
- CN202454736U CN202454736U CN2012200243974U CN201220024397U CN202454736U CN 202454736 U CN202454736 U CN 202454736U CN 2012200243974 U CN2012200243974 U CN 2012200243974U CN 201220024397 U CN201220024397 U CN 201220024397U CN 202454736 U CN202454736 U CN 202454736U
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- arc
- copper
- shaped
- aluminum
- power cord
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Abstract
The utility model discloses a copper-aluminum equipment wire clip, which relates to the technical field of the manufacturing of copper-aluminum transition wire clips for fixing leads and equipment in power transmission. The copper-aluminum equipment wire clip comprises an aluminum wiring board; an arc-shaped upward wire support is fixedly arranged on one end of the wiring board; two arc-shaped tablets are respectively arranged on the two upper ends of the arc-shaped wire support; and the two arc-shaped tablets are respectively arranged on the arc-shaped wire support detachably and integrally. Before a power cord is clamped, the two arc-shaped tablets are separated; when the power cord needs to be clamped, the power cord is sent into the arc-shaped wire support; and the two arc-shaped tablets get close through a tool, so that the power cord is firmly clamped in the arc-shaped wire support and the two arc-shaped tablets. According to the copper-aluminum equipment wire clip, the operation is convenient and quick, and because no any bolt is arranged, a phenomenon that the bolt gets loose due to heating is overcome.
Description
Technical field
The utility model relates to the manufacturing technology field that is used for fixing lead and equipment copper-aluminium transition wire clip in a kind of electric power transfer.
Background technology
Copper and aluminium are the maximum conductor materials of consumption in the present electric field, in power engineering, being electrically connected of two kinds of materials of copper aluminium inevitably occur; As everyone knows, being in the primary cell of two kinds of metals formation that have different potentials in the electrolyte, 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 (like bolt) two kinds of metals directly contacted, and on contact-making surface, will inevitably leave the gap; When having electrolyte in the gap, primary cell inevitably forms.Simultaneously, the degradation speed of contact-making surface is further quickened in the flow of current corrosion that also can produce electrolysis.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 adopts 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 like brazing, the aluminium weldering needs to adopt to isolate welds (like Buchholz protection); And the transition junction of wire clamp of copper-aluminum apparatus is the welding of two kinds of different metals, and its manufacture is if adopt flash welding or friction welding, and 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; Because the interface that can not make two kinds of mother metals forms " molten bath " fully and fully when welding, the fusing point of aluminium is far below copper in addition, so its crystalline phase tissue does not reach each other completely " fusion "; Cause its microstructure inhomogeneous; Wire clamp should bear wire tension when installing and work also will bear shearing, and its connection area of the interface of flash welding or friction welding is less, and its connection interface resistance is big; Temperature rise is big; The thermal coefficient of expansion of copper, aluminium is different in addition, 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 existing most connected mode that all adopts on tension disc is connected said line plate through bolt the upper surface; Because cable heating in the use, this heat conducts to line plate and tension disc, and bolt is loosening easily; The fastness of clamping is reduced greatly, produce hidden danger.In addition, adopt bolted mode to be unfavorable for Fast Installation, influence operating efficiency.
Summary of the invention
The utility model purpose be can avoid the copper and aluminium welding place of connecing be prone to take place fracture phenomenon, avoid screw to be prone to loosening, as to strengthen clamping fastness wire clamp of copper-aluminum apparatus.
The utility model comprises the aluminum terminal block; End at said terminal block fixedly installs arc curved line holder up; Two upper ends in said curved line holder are provided with an arc compressing tablet respectively, and the folding respectively disjunctor of said two arc compressing tablets is arranged in the curved line holder.
Before the clamping power line, with two arc compressing tablets separately, when needs clamping power line, power line to be sent in the curved line holder, the instrument of using is drawn close two arc compressing tablets to the centre, power line is clamped in curved line holder and two the arc compressing tablets firmly.The convenient operation fast of the utility model owing to there has not been bolt, has also been avoided taking place because of heating causes the loosening phenomenon of spiral shell inspection.
In order thoroughly to solve the problem that copper and aluminium welding picks out existing fracture, the utility model is the compound copper sheet at the back of terminal block also, is used for copper-aluminium transition.
Manufacture for ease, also in order to improve the support strength of curved line holder, also can be at the back of curved line holder compound copper sheet.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is that the A-A of Fig. 1 is to cut-away view.
Embodiment
Like Fig. 1, shown in 2; The utility model is provided with aluminum terminal block 1; End disjunctor at terminal block 1 is provided with arc curved line holder 2 up, 3,4, two arc compressing tablets of an arc compressing tablet, 3,4 folding respectively disjunctors is set respectively in two upper ends of curved line holder 2 is arranged in the curved line holder 2.
Back in terminal block 1 and curved line holder 2 all is compounded with copper sheet 5.
Among the figure, 6 is the lead that is held.
Claims (3)
1. wire clamp of copper-aluminum apparatus; Comprise the aluminum terminal block; It is characterized in that fixedly installing arc curved line holder up at an end of said terminal block, in two upper ends of said curved line holder an arc compressing tablet is set respectively, the folding respectively disjunctor of said two arc compressing tablets is arranged in the curved line holder.
2. according to the said wire clamp of copper-aluminum apparatus of claim 1, it is characterized in that compound copper sheet at the back of terminal block.
3. according to the said wire clamp of copper-aluminum apparatus of claim 2, it is characterized in that compound copper sheet at the back of curved line holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200243974U CN202454736U (en) | 2012-01-19 | 2012-01-19 | Copper-aluminum equipment wire clip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200243974U CN202454736U (en) | 2012-01-19 | 2012-01-19 | Copper-aluminum equipment wire clip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202454736U true CN202454736U (en) | 2012-09-26 |
Family
ID=46870568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200243974U Expired - Lifetime CN202454736U (en) | 2012-01-19 | 2012-01-19 | Copper-aluminum equipment wire clip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202454736U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855486A (en) * | 2014-03-07 | 2014-06-11 | 国家电网公司 | 110kV bus switch blade downlead clamp protector |
| CN111279560A (en) * | 2017-10-13 | 2020-06-12 | 利萨·德雷克塞迈尔有限责任公司 | Electrical line device with direct contact and method for producing the same |
-
2012
- 2012-01-19 CN CN2012200243974U patent/CN202454736U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855486A (en) * | 2014-03-07 | 2014-06-11 | 国家电网公司 | 110kV bus switch blade downlead clamp protector |
| CN103855486B (en) * | 2014-03-07 | 2015-01-21 | 国家电网公司 | 110kV bus switch blade downlead clamp protector |
| CN111279560A (en) * | 2017-10-13 | 2020-06-12 | 利萨·德雷克塞迈尔有限责任公司 | Electrical line device with direct contact and method for producing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Changyuan Electrical Equipment Co., Ltd. Assignor: Meng Hanmin Contract record no.: 2014320000243 Denomination of utility model: Wire clamp of copper-aluminum apparatus Granted publication date: 20120926 License type: Exclusive License Record date: 20140320 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |
|
| CX01 | Expiry of patent term |