CN203660071U - Copper and aluminum transition fitting applied to low and medium voltage power station area substation line outgoing - Google Patents
Copper and aluminum transition fitting applied to low and medium voltage power station area substation line outgoing Download PDFInfo
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- CN203660071U CN203660071U CN201320806014.3U CN201320806014U CN203660071U CN 203660071 U CN203660071 U CN 203660071U CN 201320806014 U CN201320806014 U CN 201320806014U CN 203660071 U CN203660071 U CN 203660071U
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- copper
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- aluminium
- line nose
- aluminium transition
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Abstract
The utility model provides a copper and aluminum transition fitting applied to low and medium voltage power station area substation line outgoing. The fitting comprises a flat copper line nose and a cylindrical hollow aluminum line tube. The fitting is characterized in that a copper cylinder is arranged on the lower end of the copper line nose; the copper cylinder and the aluminum line tube are welded to form copper and aluminum transition connection; the copper cylinder is solid or a hollow tube; the upper end part of the copper line nose is generally semicircular, and is provided with a round hole through which a wiring terminal passes; and the upper end part of the copper line nose can match the wiring terminal in other shapes. According to the copper and aluminum transition fitting, a transition interface part is arranged on the cylindrical wiring tube, thus copper and aluminum contact area is increased; the problem that the interface part of the copper and aluminum transition fitting is prone to aging, breaking and the like is solved; the safety and the reliability of a power system are enhanced; the power supply quality of a station area is improved; and in addition, the copper and aluminum transition fitting has the advantages of simple manufacturing process and low manufacturing cost, thus the cost of maintenance and repair can be greatly reduced.
Description
Technical field
The utility model relates to a kind of electric armour clamp, and particularly a kind of copper-aluminium transition gold utensil that becomes outlet for mesolow (10kV and following) power station area, belongs to electric power accessory technical field.
Background technology
In mesolow electric power networks, the outlet terminal of the electric equipments such as mesolow platform district's change generally all adopts copper product to make, and makes and mesolow overhead wire and cable mostly are aluminum, therefore needs to connect with copper-aluminium transition gold utensil.Along with low-voltage electricity user quantity sharply increases, mesolow copper-aluminium transition gold utensil requirement rises very fast.The copper-aluminium transition interface of the conventional copper-aluminium transition gold utensil using of the outlet of mesolow power station area change at present is generally located at flat line nose link, the contact area of this place's copper material and aluminium is less, in the coastal area of high salt density, owing to being corroded for a long time, very easily cause the phenomenons such as aging, heating.In addition, because modulus of elasticity and the thermal coefficient of expansion of copper, aluminium differ greatly, be in operation after cold cycling repeatedly (energising and power-off), can make copper-aluminium transition interface produce gap and affect contact, also increased contact resistance, in service will cause temperature raise.Under high temperature, copper-aluminium transition interface corrosion oxidation will aggravate, and produces vicious circle, and quality of connection is further worsened, and finally causes contact point excess Temperature, causes the accidents such as broken string.
Copper-aluminium transition heating problem directly has influence on the safe and stable operation that platform district becomes.Existing conventional copper-aluminium transition gold utensil is in long-term use procedure, in the time of traffic overload or operation short circuit, copper-aluminium transition junction can heat up rapidly, gently contact occurs burns out power outage, heavy cause that burning platform district becomes, even causes the accident such as equipment explosion, fire, cause localised load large-area power-cuts, bring very big potential safety hazard to electric power system, reduce platform district simultaneously and become power quality.
Utility model content
In order to address the above problem, the utility model provides a kind of copper-aluminium transition gold utensil for the change outlet of mesolow power station area of novel structure, this copper-aluminium transition gold utensil is keeping on the basis of existing copper-aluminium transition gold utensil profile, copper-aluminium transition interface position is arranged on to cylindrical wire barrel place, thereby increase the contact area of copper material and aluminium, can better solve the problem of the copper aluminium interface fracture that copper-aluminium transition gold utensil causes due to reasons such as burn into electrification, heatings.
Concrete technical scheme of the present utility model is: a kind of copper-aluminium transition gold utensil that becomes outlet for mesolow power station area, comprise flat copper line nose and columniform hollow aluminum matter spool, it is characterized in that: the lower end of copper line nose is provided with one section of copper cylinder, this copper cylinder welds mutually formation copper-aluminium transition with aluminium matter spool and is connected.
Described copper cylinder is solid or pipe fills hollow.
The upper end of described copper line nose is the shape suitable with binding post.
The upper end of described copper line nose is semicircle, and has the circular hole passing for binding post.
The beneficial effects of the utility model are:
Compared with the existing conventional copper-aluminium transition gold utensil that becomes outlet for mesolow power station area, copper-aluminium transition gold utensil provided by the utility model, copper-aluminium transition interface position is arranged on to cylindrical wire barrel place, thereby increase the contact area of copper material and aluminium, can better solve the easily problem of aging, broken string etc. of copper-aluminium transition interface position, avoid occurring from now on aging, broken string, the power-off fault that heating produces that cause due to high salt density because of copper-aluminium transition gold utensil, strengthen Power System Security And Reliability, improve platform district power supply quality.This copper-aluminium transition gold utensil manufacturing process is simple, and can be mass-produced and meet the need of market, and also cheap for manufacturing cost, can greatly reduce and safeguard and the cost of overhaul.
Accompanying drawing explanation
The overall structure schematic diagram of the conventional copper-aluminium transition gold utensil of Fig. 1;
Fig. 2 is overall structure schematic diagram of the present utility model;
Fig. 3 is front view of the present utility model;
Fig. 4 is the A-A cutaway view as copper cylinder Fig. 3 while being solid;
Fig. 5 is the A-A cutaway view as copper cylinder Fig. 3 while being hollow.
In figure: the copper line nose of 1-, the copper cylinder of 2-, 3-copper-aluminium transition interface, 4-aluminium matter spool.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, the copper-aluminium transition interface 3 of existing conventional copper-aluminium transition gold utensil is generally located at flat line nose link, and this place's copper aluminium contact area is less.And copper-aluminium transition gold utensil provided by the utility model as shown in Figure 2, comprise flat copper line nose 1 and columniform hollow aluminum matter spool 4, the lower end of copper line nose 1 is also provided with one section of copper cylinder 2, copper cylinder 2 can be solid, as shown in Figure 4, also it is hollow to be that pipe fills, as shown in Figure 5.Copper cylinder 2 welds mutually formation copper-aluminium transition with aluminium matter spool 4 and is connected.Copper-aluminium transition interface 3 is arranged on cylindrical wire barrel place by this copper-aluminium transition gold utensil, thereby increased the contact area of copper material and aluminium, solved better the copper aluminium interface fracture defect that copper-aluminium transition gold utensil causes due to reasons such as burn into electrification, heatings.Mesolow power station area becomes the binding post of outlet and is generally cylindrical, copper guide rod in addition, so semicircle is generally made in the upper end of the copper line nose 1 of this copper-aluminium transition gold utensil, and has circular hole and passes for binding post.In the middle of low-voltage power platform district become the shape of binding post of outlet when different, the shape suitable with binding post can also be arranged to in copper line nose 1 upper end, guarantee that copper line nose 1 and binding post can have enough large contact area.
When this copper-aluminium transition of processing and fabricating gold utensil, copper line nose 1 and copper cylinder 2 parts adopt solid copper bar or hollow copper tubing to forge punch forming, and then copper cylinder 2 parts and cylinder type hollow aluminium matter spool 4 are welded, connect thereby form copper-aluminium transition.
When this copper-aluminium transition gold utensil uses, first aluminium matter cable end is inserted in the copper-aluminium transition gold utensil aluminium matter spool hole of corresponding size until at the bottom of hole, and adopt special Crimping Pliers to compress, the aluminium matter spool 4 of aluminium matter cable and copper-aluminium transition gold utensil is combined closely, and then the copper line nose 1 of copper-aluminium transition gold utensil is accessed to the copper binding post of electric equipment and compressed connection with fastening nuts, in order to prevent corrosion, can load onto insulated enclosure heat-shrink tube to after assembling completes this product.
Claims (4)
1. one kind becomes the copper-aluminium transition gold utensil of outlet for mesolow power station area, comprise flat copper line nose (1) and columniform hollow aluminum matter spool (4), it is characterized in that: the lower end of copper line nose (1) is provided with one section of copper cylinder (2), this copper cylinder (2) welds mutually formation copper-aluminium transition with aluminium matter spool (4) and is connected.
2. copper-aluminium transition gold utensil according to claim 1, is characterized in that: described copper cylinder (2) is solid or pipe fills hollow.
3. according to the copper-aluminium transition gold utensil described in claim 1 or 2 any one, it is characterized in that: the upper end of described copper line nose (1) is the shape suitable with binding post.
4. copper-aluminium transition gold utensil according to claim 3, is characterized in that: the upper end of described copper line nose (1) is semicircle, and has the circular hole passing for binding post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806014.3U CN203660071U (en) | 2013-12-10 | 2013-12-10 | Copper and aluminum transition fitting applied to low and medium voltage power station area substation line outgoing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806014.3U CN203660071U (en) | 2013-12-10 | 2013-12-10 | Copper and aluminum transition fitting applied to low and medium voltage power station area substation line outgoing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203660071U true CN203660071U (en) | 2014-06-18 |
Family
ID=50926423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320806014.3U Expired - Fee Related CN203660071U (en) | 2013-12-10 | 2013-12-10 | Copper and aluminum transition fitting applied to low and medium voltage power station area substation line outgoing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203660071U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356078A (en) * | 2014-06-24 | 2016-02-24 | 国家电网公司 | Connection terminal including two metal materials |
| CN105490086A (en) * | 2015-12-04 | 2016-04-13 | 国家电网公司 | Wiring armor clamp |
| CN105742850A (en) * | 2016-04-15 | 2016-07-06 | 河北欣意电缆有限公司 | High-performance aluminum alloy cable connection terminal |
| CN107910671A (en) * | 2017-11-01 | 2018-04-13 | 国网辽宁省电力有限公司检修分公司 | The method of the flexible excessively gold utensil of plain conductor and flexible excessively gold utensil repairing counterpoise grounding |
-
2013
- 2013-12-10 CN CN201320806014.3U patent/CN203660071U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356078A (en) * | 2014-06-24 | 2016-02-24 | 国家电网公司 | Connection terminal including two metal materials |
| CN105356078B (en) * | 2014-06-24 | 2017-11-14 | 国家电网公司 | Include the connection terminal of two kinds of metal materials |
| CN105490086A (en) * | 2015-12-04 | 2016-04-13 | 国家电网公司 | Wiring armor clamp |
| CN105742850A (en) * | 2016-04-15 | 2016-07-06 | 河北欣意电缆有限公司 | High-performance aluminum alloy cable connection terminal |
| CN105742850B (en) * | 2016-04-15 | 2018-07-20 | 河北欣意电缆有限公司 | A kind of High-performance aluminium alloy cable connection terminal |
| CN107910671A (en) * | 2017-11-01 | 2018-04-13 | 国网辽宁省电力有限公司检修分公司 | The method of the flexible excessively gold utensil of plain conductor and flexible excessively gold utensil repairing counterpoise grounding |
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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: 20140618 Termination date: 20151210 |
|
| EXPY | Termination of patent right or utility model |