CN203367527U - Current carrying ring-equipped copper and aluminium transitional equipment wire clamp - Google Patents
Current carrying ring-equipped copper and aluminium transitional equipment wire clamp Download PDFInfo
- Publication number
- CN203367527U CN203367527U CN 201320443380 CN201320443380U CN203367527U CN 203367527 U CN203367527 U CN 203367527U CN 201320443380 CN201320443380 CN 201320443380 CN 201320443380 U CN201320443380 U CN 201320443380U CN 203367527 U CN203367527 U CN 203367527U
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- copper
- current
- wire clamp
- aluminium
- current carrying
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Abstract
The utility model discloses a current carrying ring-equipped copper and aluminium transitional equipment wire clamp and relates to the electric power transmission and manufacture technology field. The current carrying-ring copper and aluminium transitional equipment wire clamp comprises an aluminium wire clamp body, an aluminium pressing block and fastening screw bolt groups running through the wire clamp body and the pressing block, wherein current carrying rings are fixed between the opposite faces of the wire clamp body and the pressing block through the fastening screw bolt groups, and one ends of the current carrying rings are closed and the other ends of the current carrying rings are open. A face, contacting with the current carrying rings, of the wire clamp body is covered by a layer of a copper sheet. A layer, contacting with the current carrying rings, of the pressing block is covered by a layer of copper sheet. The current carrying rings are made of pure copper T2. The current carrying ring-equipped copper and aluminium transitional equipment wire clamp is characterized in that the electric conduction performance of the copper and aluminium transitional equipment wire clamp is improved, the occurance of the condition that the fastening screw bolts on the wire clamp get hot and are burned out when a large electric current passes, the line faults caused by the break-off of the copper and aluminium transitional equipment wire clamp can be effectively prevented, and important effects are exerted for guaranteeing the safe operation of the power grid and reliable power supply of the power grid.
Description
Technical field
The utility model relates to electric power transfer manufacturing technology field, the copper-aluminium transition equipment cable clamp of using on especially a kind of electrification railway contact net electric supply installation.
Background technology
Electric railway transportation system mainly is comprised of electric locomotive and the traction power set of drive, wherein traction power set generally is divided into traction substation and contact line two parts, the major function of traction substation is to carry the electricity of coming to carry electricity to each use equipment again after step-down by power plant (station), because the power delivery circuit is the aluminum twisted wire mostly, and traction substation transformer input/output terminal is generally the copper terminals, therefore, the link connected between copper terminals and aluminium stranded conductor tends to form because electricity is carried the different couple corrosions that produce of material, thereby reduce reliability and the useful life of link.
In the prior art at present, butt joint type copper-aluminium transition equipment cable clamp or the local copper-aluminium transition equipment cable clamp of carrying out copper sheet have been widely used between copper terminals and aluminium stranded conductor, still there are some problems in actual use in the copper-aluminium transition equipment cable clamp of these two kinds of structures: 1, butt joint type copper-aluminium transition equipment cable clamp welding, the welding of copper aluminium belongs to different-metal material welding, in welding, can form metallic compound (as CuCl on solder side
2and CuCl
4), this metallic compound is hard and crisp, conductivity is poor especially, can't meet the requirement of mechanical performance and electric property on performance, and hot cracking tendency is arranged, therefore this wire clamp easily ruptures and causes serious accident; 2, the local copper-aluminium transition equipment cable clamp of carrying out copper sheet, the manufacture craft of this wire clamp is being carried out one deck scale copper by part on alloy matrix aluminum and is being realized, the shortcoming of this wire clamp is that the bolt place contact resistance connected at wire clamp is larger, when having large electric current to pass through, can cause bolt fever phenomenon to occur, thereby make the distortion of bolt scaling loss, reduce bonding strength.
Summary of the invention
The purpose of this utility model is to provide a kind of copper-aluminium transition equipment cable clamp with the current-carrying ring, and it can solve the frequent fracture of copper-aluminium transition equipment cable clamp, scaling loss in prior art, causes the problem of whole electric railway transportation system accident.
In order to address the above problem, the technical solution adopted in the utility model is:
A kind of copper-aluminium transition equipment cable clamp with the current-carrying ring, comprise the wire clip body of aluminum, the briquetting of aluminum, the fastening bolt group of passing described wire clip body and described briquetting, one side in opposite directions at described wire clip body and described briquetting is fixed with by described fastening bolt group the current-carrying ring that an end seals an end opening, the face of described wire clip body and described current-carrying loop contacts is covered with one deck copper sheet, the face of described briquetting and described current-carrying loop contacts is carried out one deck copper sheet, and described current-carrying ring is made by fine copper T2.
According to above technical scheme, further scheme is: described current-carrying ring is a pair of, by described fastening bolt group, be crimped under described body wire clamp respectively and described briquetting on, the U-shaped clamping plate that its blind end be circle.
Further scheme is: described wire clip body middle part is provided with a groove of the wire clamp along this wire clip body length direction.
Further scheme is: there is a briquetting groove made progress the centre of described briquetting.
Further scheme is: there is a briquetting groove made progress the centre of described briquetting, and this briquetting groove is corresponding with described wire clamp groove.
Further scheme is: the thickness of described copper sheet is 1mm ~ 3mm..
Owing to having adopted technique scheme, the utility model compared with prior art has following beneficial effect:
1, after the copper-aluminium transition equipment cable clamp design increases by two current-carrying rings, increased and aluminium base on contact area between the fine copper plate, the electric conductivity of copper-aluminium transition equipment cable clamp increases, greatly reduced large electric current by the time cause the situation of the fastening bolt heating scaling loss on copper-aluminium transition equipment cable clamp to occur; Under the effect of 2400-3000 Ampere currents, lower 60 ℃-100 ℃ than copper-aluminium transition equipment cable clamp temperature of the prior art with the copper-aluminium transition equipment cable clamp temperature of current-carrying ring, can effectively protect not heating distortion, the scaling loss because produced by large electric current of bolt.
2, copper-aluminium transition equipment cable clamp connects by two U-shaped current-carrying rings, and the line fault that can effectively avoid copper-aluminium transition equipment cable clamp to fracture causing, have important function to ensureing electric power netting safe running, reliable power supply.
The accompanying drawing explanation
Fig. 1 is the front view of the copper-aluminium transition equipment cable clamp of the utility model band current-carrying ring.
Fig. 2 is the vertical view of the copper-aluminium transition equipment cable clamp of the utility model band current-carrying ring.
Fig. 3 is the front view of body of the copper-aluminium transition equipment cable clamp of the utility model band current-carrying ring.
Fig. 4 is the left view of body of the copper-aluminium transition equipment cable clamp of the utility model band current-carrying ring.
Fig. 5 is the front view of briquetting of the copper-aluminium transition equipment cable clamp of the utility model band current-carrying ring.
Fig. 6 is the vertical view of briquetting of the copper-aluminium transition equipment cable clamp of the utility model band current-carrying ring.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
The copper-aluminium transition equipment cable clamp with the current-carrying ring as shown in Fig. 1 ~ Fig. 6, comprise the briquetting 7 of wire clip body 1, the aluminum of aluminum, through bolt 6, nut 5, the bullet pad 4 of wire clip body 1 and briquetting 7, one side in opposite directions at wire clip body 1 and briquetting 7 is fixed with by bolt 6, nut 5, bullet pad 4 the current-carrying ring 3 that an end seals an end opening, the face that wire clip body 1 contacts with current-carrying ring 3 is covered with one deck copper sheet 2, the face that briquetting 7 contacts with current-carrying ring 3 is carried out one deck copper sheet 8, copper sheet 2,8 overlays on respectively the surface of wire clip body 1 and briquetting 7, and current-carrying ring 3 is made by fine copper T2.
Current-carrying ring 3 is two, by bolt 6, nut 5 and bullet pad 4, is crimped under body wire clamp 1 respectively and on briquetting 7, and its blind end is circular U-shaped clamping plate; A spacing is arranged between two current-carrying rings 3.
Wire clip body 1 middle part is provided with a wire clamp groove along this wire clip body 1 length direction, and the width of this wire clamp groove is less than the distance between current-carrying ring 3; There is the briquetting groove made progress of a Width along briquetting 7 centre of briquetting 7, and the width of this briquetting groove is less than the distance between current-carrying ring 3, and above-mentioned two grooves arrange in opposite directions, in order to place the aluminium hinge line of different wire diameters.
The thickness of copper sheet 2,8 is 1mm ~ 3mm., and carries out the surface contacted with current-carrying ring 3 with briquetting 7 at wire clip body 1.
Claims (6)
1. the copper-aluminium transition equipment cable clamp with the current-carrying ring, comprise the wire clip body of aluminum, the briquetting of aluminum, the fastening bolt group of passing described wire clip body and described briquetting, it is characterized in that: the one side in opposite directions at described wire clip body and described briquetting is fixed with by described fastening bolt group the current-carrying ring that an end seals an end opening, the face of described wire clip body and described current-carrying loop contacts is covered with one deck copper sheet, the face of described briquetting and described current-carrying loop contacts is carried out one deck copper sheet, and described current-carrying ring is made by fine copper T2.
2. the copper-aluminium transition equipment cable clamp with the current-carrying ring according to claim 1, it is characterized in that: described current-carrying ring is a pair of, by described fastening bolt group, be crimped under described body wire clamp respectively and described briquetting on, the U-shaped clamping plate that its blind end be circle.
3. the copper-aluminium transition equipment cable clamp with the current-carrying ring according to claim 1 and 2, is characterized in that: be provided with a groove of the wire clamp along this wire clip body length direction in the middle part of described wire clip body.
4. the copper-aluminium transition equipment cable clamp with the current-carrying ring according to claim 1 and 2, it is characterized in that: there is a briquetting groove made progress the centre of described briquetting.
5. the copper-aluminium transition equipment cable clamp with the current-carrying ring according to claim 3, it is characterized in that: there is a briquetting groove made progress the centre of described briquetting, and this briquetting groove is corresponding with described wire clamp groove.
6. the copper-aluminium transition equipment cable clamp with the current-carrying ring according to claim 1, it is characterized in that: the thickness of described copper sheet is 1mm ~ 3mm..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320443380 CN203367527U (en) | 2013-07-24 | 2013-07-24 | Current carrying ring-equipped copper and aluminium transitional equipment wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320443380 CN203367527U (en) | 2013-07-24 | 2013-07-24 | Current carrying ring-equipped copper and aluminium transitional equipment wire clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367527U true CN203367527U (en) | 2013-12-25 |
Family
ID=49815247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320443380 Withdrawn - After Issue CN203367527U (en) | 2013-07-24 | 2013-07-24 | Current carrying ring-equipped copper and aluminium transitional equipment wire clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367943A (en) * | 2013-07-24 | 2013-10-23 | 柳州桂通精密铸造有限公司 | Copper aluminum transition equipment wire clamp with current-carrying ring |
-
2013
- 2013-07-24 CN CN 201320443380 patent/CN203367527U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367943A (en) * | 2013-07-24 | 2013-10-23 | 柳州桂通精密铸造有限公司 | Copper aluminum transition equipment wire clamp with current-carrying ring |
| CN103367943B (en) * | 2013-07-24 | 2015-12-02 | 柳州桂通精密铸造有限公司 | With the copper-aluminium transition equipment cable clamp of current-carrying ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131225 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |