CN208849206U - A kind of high pressure aluminium cable and copper conductor connecting device - Google Patents

Abstract

A kind of high pressure aluminium cable and copper conductor connecting device pass through the quincunx contact connecting with copper conductor, mating, the connection transition of completion copper conductor and high pressure aluminium cable of the transition attachment base crimped with high pressure aluminium cable；Copper-aluminium transition bar and semicircle locking ring are equipped in transition attachment base；Copper-aluminium transition bar includes aluminum aluminium hydraulic pressed connecting pipe, copper round column cap, Copper-Aluminum compound material gasket, fastening bolt and spring washer；Gasket is arranged between aluminium hydraulic pressed connecting pipe and column cap, after fastening bolt pocketed springs washer, column cap is connect fastening with aluminium hydraulic pressed connecting pipe across through-hole and gasket and is integrally formed.The utility model both can guarantee reliably to be crimped between the core of high pressure aluminium cable and the aluminum aluminium hydraulic pressed connecting pipe homogeneity on copper-aluminium transition bar, it can guarantee that copper conductor is connected by the plug-in between round column cap homogeneity copper on quincunx contact and copper-aluminium transition bar again, carry sufficiently large electric current, and device is not influenced by cable gravity, energy safety and steady completes the connection transition of copper aluminium different conductor.

Description

A kind of high pressure aluminium cable and copper conductor connecting device

Technical field

The utility model relates to a kind of high pressure aluminium cables to connect the device of transition with copper conductor, belongs to high-tension cable connection Field of terminal technology.

Background technique

Cable is the bridge between power supply unit and electrical equipment, plays a part of transmitting electric power, be widely used, the modern times are raw Living and production be unable to do without electric power, therefore, also just be unable to do without cable.

High-tension cable belongs to power cable, from structure, is broadly divided into three parts, i.e. conductor, insulation screen And protective layer；Conductor, that is, cable core is generally pressed using multiply circle aluminum steel or copper wire and is twisted；Insulation screen includes interior External shielding layer, copper shield and main insulating layer.

The power cable core of our countries generally uses strand copper wire to press and is made by twisting, and on international market much The insufficient countries and regions of country, especially developing country and copper resource, aluminium conductor high-tension cable are applied than wide.

With China's expanding economy and the in-depth of world commerce, especially national the Belt and Road strategy implementation with Afterwards, going global has become commercial operation normality, wherein and electric power cooperation has become one of big event of exchange and cooperation, in this way, The connectivity problem of aluminium cable and copper conductor will be frequently encountered.

Since the conductive resistance of two kinds of materials of copper aluminium is different, and due to aluminium easily aoxidizes under field conditions (factors) and in surface shape At oxidation film, resistance value is very high, and the joint contacted with copper, which easily generates heat, even results in metal melt；Further, since copper, two kinds of aluminium The electrochemical potentials of metal are different, and the contact surface of the two will form the battery using water as electrolyte by the time of tide, and it is rotten to generate electrolysis Erosion, so as to cause contact resistance increase；In addition, because copper, the coefficient of expansion of aluminium be not also identical, it is cold and hot when load change Variation can also make contact surface loosen, aoxidize, so as to cause contact resistance increase.The increase of contact resistance eventually makes conductor joint heating It burns out, leads to power breakdown, or even cause the generation of major accident, therefore, when two kinds of different conductors of copper-aluminium connect, require The surface of copper aluminium contact must assure that cleaning, and weld two kinds of different conductors of copper-aluminium to be formed using energy storage welding method Solder for Al-Cu Joint Welding transit joint, then it is firm with fastening screw fastening, carry out anti-oxidation, anti-overheat and anti-loose measure.

In the prior art, using Solder for Al-Cu Joint Welding transit joint made of welding manner, since welding quality is difficult to control and examines It tests, the copper aluminium conductor welding requirements of especially big specification is high, also high to equipment requirement, and therefore, cost of manufacture is high and quality It is difficult to control.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a kind of high pressure aluminium cable and connect transition dress with copper conductor It sets, to reach, device is simple, the connection transition of easy to manufacture and install, low in cost, copper-aluminium different conductor is steady, Jin Erbao Demonstrate,prove the safe and reliable of power Transmission.

In order to achieve the above object, the utility model adopts the following technical solutions:

A kind of high pressure aluminium cable and copper conductor connecting device, including connect with copper conductor quincunx contact, with The transition attachment base that high pressure aluminium cable is connected and contacted with the quincunx contacts mates, the transition attachment base include insulation The shielding case of grafting, feature exist at the top of the embedding pipe of cylindrical metallic and the insulating sleeve in casing and the insulating sleeve In:

Copper-aluminium transition bar and semicircle locking ring are additionally provided in the transition attachment base；

The copper-aluminium transition bar includes being equipped with card slot on the outside of one end and being axially arranged with screw hole and the other end is axially provided with blind hole Aluminum aluminium hydraulic pressed connecting pipe, axial have through-hole and its outer rim can plug cooperation with the quincunx contact and contact the copper to form current channel Matter circle column cap, the gasket of Copper-Aluminum compound material, fastening bolt and spring washer；

The blind pipe end cap of the aluminium hydraulic pressed connecting pipe is in the embedding pipe, and the locking ring stand by being caught in the card slot It is located at the embedding tube top end, and the shielding case by being pressed on the locking ring is locked on embedding pipe；

The gasket is arranged between the aluminium hydraulic pressed connecting pipe and the column cap；

The fastening bolt be set with after the spring washer pass through the through-hole and the gasket by the column cap with it is described Aluminium hydraulic pressed connecting pipe connection fastening is integrally formed.

Further, the through-hole and the screw hole have 1~16, the fastening bolt and the spring washer with it is described Through-hole and screw hole number having the same.

Further, the fastening bolt specification is M3~M60.

Further, the aluminium hydraulic pressed connecting pipe periphery between the screw hole and the blind hole is equipped with flange, the embedding tube top portion Equipped with convex shoulder, the aluminium hydraulic pressed connecting pipe is resisted against on the convex shoulder by the flange and determines that it is sleeved on the length in the embedding pipe.

Compared with prior art, the utility model beneficial effect and marked improvement are:

1) high pressure aluminium cable provided by the utility model and copper conductor connecting device, pass through quincunx contact and mistake The mating of attachment base is crossed, completes the connection transition of copper conductor and high pressure aluminium cable, wherein the copper aluminium mistake to play a crucial role It crosses bar not only and can guarantee and reliably crimped between the core of high pressure aluminium cable and the homogeneity of aluminum blind pipe on copper-aluminium transition bar, but also can guarantee Copper conductor is connected by the plug-in between round column cap homogeneity copper on quincunx contact and copper-aluminium transition bar, is carried sufficiently large Electric current, safety and steady complete the connection transition of copper-aluminium different materials conductor, guarantee the safe and reliable of power Transmission；

2) tight on copper-aluminium transition bar in high pressure aluminium cable provided by the utility model and copper conductor connecting device Fixing bolt is not by the weight pulling force of cable, so that the connection of copper circle column cap and aluminum blind pipe not will receive cable gravity Influence and loosen, the transition gasket of Copper-Aluminum compound material is especially additionally provided between copper round column cap and aluminum blind pipe, It more can guarantee being reliably connected between two kinds of unlike material conductors of copper aluminium, guarantee the safe transition of high pressure copper aluminium cable；

3) in high pressure aluminium cable provided by the utility model and copper conductor connecting device, entire copper-aluminium transition bar according to It is locked on insulating sleeve by locking ring, shielding case, not will receive the influence of cable gravity and loosen, can guarantee and high jewelling Core cable is reliably connected, and then guarantees the safe transition of high pressure copper aluminium conductor；

4) present apparatus design is simple, easy to make, can manufacture production without being equipped with special manufacturing equipment, accessory is at low cost It is honest and clean, it can guarantee the safe transition connection of high pressure copper aluminium conductor, thus, great application value.

Detailed description of the invention

Fig. 1 is that the partial elevational of a kind of high pressure aluminium cable provided by the utility model and copper conductor connecting device is cutd open Cut structural schematic diagram；

Fig. 2 is a kind of high pressure aluminium cable and copper conductor connecting device transition attachment base provided by the utility model Partial elevational cutting structural schematic diagram；

Fig. 3 is a kind of high pressure aluminium cable and copper conductor connecting device copper-aluminium transition bar provided by the utility model Face cutting structural schematic diagram；

Fig. 4 is to have 4 spiral shells in a kind of high pressure aluminium cable and copper conductor connecting device provided by the utility model The copper-aluminium transition bar of bolt faces cutting structural schematic diagram and its overlooking structure diagram.

In figure:

1- quincunx contact；

2- transition attachment base, 21- insulating sleeve, the embedding pipe of 22-, 23- shielding case；

3- copper-aluminium transition bar, 31- aluminium hydraulic pressed connecting pipe, 311- card slot, 312- screw hole, 313- blind hole, 314- flange, 32- column cap, 321- through-hole, 33- gasket, 34- fastening bolt, 35- spring washer；

4- locking ring；

5- high pressure aluminium cable, 51- aluminum core；

6- copper conductor.

Specific embodiment

With reference to the accompanying drawing and Detailed description of the invention and embodiment do further in detail technical solution provided by the utility model It describes in detail bright.

Embodiment

As a kind of Fig. 1 high pressure aluminium cable provided by the utility model and the partial elevational of copper conductor connecting device cut open It cuts shown in structural schematic diagram:

A kind of high pressure aluminium cable and copper conductor connecting device, including connect with copper conductor 6 quincunx contact 1, It is connected with high pressure aluminium cable 5 and cooperates the transition attachment base 2 contacted with quincunx contact 1.

Such as a kind of Fig. 2 high pressure aluminium cable provided by the utility model and copper conductor connecting device transition attachment base Shown in partial elevational cutting structural schematic diagram:

Transition attachment base 2 includes insulating sleeve 21 and the embedding pipe 22 of cylindrical metallic and insulating sleeve 21 in insulating sleeve 21 The shielding case 23 of top grafting.

Copper-aluminium transition bar 3 and semicircle shape lock are additionally provided with from being further observed that in transition attachment base in Fig. 1 and Fig. 2 Ring 4.

Such as a kind of Fig. 3 high pressure aluminium cable provided by the utility model and copper conductor connecting device copper-aluminium transition bar It faces shown in cutting structural schematic diagram:

Copper-aluminium transition bar 3 include card slot 311 is equipped on the outside of one end and be axially arranged with screw hole 312 and the other end be axially provided with it is blind The aluminum aluminium hydraulic pressed connecting pipe 31 in hole 313, axial direction have through-hole 321 and its outer rim can plug cooperation with quincunx contact 1 and contact to form electric current Copper round column cap 32, the gasket 33 of Copper-Aluminum compound material, fastening bolt 34 and the spring washer 35 in channel.

It can be seen that the blind pipe end cap of aluminium hydraulic pressed connecting pipe 31 is blocked in embedding pipe 22, and by the way that card slot 311 is interior in conjunction with Fig. 2 and Fig. 3 The locking ring 4 entered is erected at embedding 22 top of pipe, and the shielding case 23 by being pressed on locking ring 4 is locked on embedding pipe 22；

Gasket 33 is arranged between aluminium hydraulic pressed connecting pipe 31 and column cap 32；

Through-hole 321 is passed through after 34 pocketed springs washer 35 of fastening bolt and column cap 32 is connect tightly by gasket 33 with aluminium hydraulic pressed connecting pipe 31 Admittedly being integrally formed.

According to the specification of different high pressure aluminium cables and copper conductor, high pressure aluminium cable provided by the utility model is led with copper Body connecting device also can according to need change size dimension, and corresponding copper-aluminium transition bar 3 can be made very big, in this way, copper Through-hole 321 and screw hole 312 on aluminium transiting rod 3 have and can have 1~16, corresponding, fastening bolt 34 and spring washer 35 with Through-hole 321 and screw hole 312 answer number having the same, and Fig. 4 is a kind of high pressure aluminium cable and copper provided by the utility model Copper-aluminium transition bar in conductor connecting device with 4 bolts faces cutting structural schematic diagram and its plan structure signal Figure.

34 specification of fastening bolt can be M3~M60.

Further, as shown in Fig. 2, being equipped with convex shoulder 221 at the top of embedding pipe 22；As shown in figure 3, between screw hole 312 and blind hole 313 The periphery of aluminium hydraulic pressed connecting pipe 31 be equipped with flange 314, aluminium hydraulic pressed connecting pipe 31 is resisted against on convex shoulder 221 by flange 314, determines that it is sleeved on Length in embedding pipe 22.

It can be seen that, high pressure aluminium cable provided by the utility model and copper conductor connecting device guarantee referring to Fig.1 The steady connection transition of copper-aluminium different conductor achievees the purpose that securely and reliably to complete power Transmission, is to realize as follows :

It is connected firstly, insulation screen will be removed and be inserted into transition with the aluminum core 51 of the high pressure aluminium cable 5 of protective layer It is close to compress connection in aluminum aluminium hydraulic pressed connecting pipe 31 in seat 2；

Then, copper conductor 6 and quincunx contact 1 are subjected to secure rigid connection；

Finally, quincunx contact 1 is inserted into transition attachment base 2, by quincunx contact 1 and 3 center pillar of copper-aluminium transition bar First 32 plug-in is cooperatively connected, and guarantees that sufficiently large electric current can be carried between column cap 32 and the quincunx contact 1 of homogeneous material, So that copper aluminium different conductor is steadily connected transition, guarantees that the completion of security power conveying is reliable.

In summary:

A kind of high pressure aluminium cable provided by the utility model and copper conductor connecting device, by quincunx contact with Mating, the connection transition of completion copper conductor and high pressure aluminium cable, wherein the copper aluminium to play a crucial role of transition attachment base Transiting rod not only can guarantee reliably to be crimped between the core of high pressure aluminium cable and the homogeneity of aluminum blind pipe on copper-aluminium transition bar, but also can be protected It is sufficiently large by the plug-in connection carrying between round column cap homogeneity copper on quincunx contact and copper-aluminium transition bar to demonstrate,prove copper conductor Electric current, safety and steady complete the connection transition of copper-aluminium different conductor, guarantee the safe and reliable of power Transmission；

Due in high pressure aluminium cable provided by the utility model and copper conductor connecting device, on copper-aluminium transition bar Fastening bolt is not by the weight pulling force of cable, so that the connection of copper circle column cap and aluminum blind pipe not will receive cable weight The influence of power and loosen, the locking pad of Copper-Aluminum compound material is especially additionally provided between copper round column cap and aluminum blind pipe Piece more can guarantee being reliably connected between two kinds of unlike material conductors of copper aluminium, guarantee the safe transition of high pressure copper aluminium cable；

In addition, in high pressure aluminium cable provided by the utility model and copper conductor connecting device, entire copper-aluminium transition Bar is locked on insulating sleeve by locking ring, shielding case, not will receive the influence of cable gravity and is loosened, and can be guaranteed and aluminium Matter cable is reliably connected, and then guarantees the safe transition of high pressure copper aluminium cable；

Because present apparatus design is simple, easy to make, production, accessory cost can be manufactured without being equipped with special manufacturing equipment It is cheap, it can guarantee the safe transition connection of high pressure copper aluminium cable, thus, great application value.

Finally, it is necessary to explanations:

Above content is only used for helping to illustrate and understand the technical solution of the utility model, should not be understood as the limit to it System；It is practical to belong to this for the non-intrinsically safe modifications and adaptations or replacement that those skilled in the art are made according to the content of the present specification Novel range claimed.

Claims (4)

1. a kind of high pressure aluminium cable and copper conductor connecting device, including the quincunx contact and height being connect with copper conductor Jewelling core cable connection and the transition attachment base contacted with the quincunx contacts mates, the transition attachment base includes insulation sleeve The shielding case of grafting at the top of pipe and the embedding pipe of cylindrical metallic in the insulating sleeve and the insulating sleeve, it is characterised in that:

Copper-aluminium transition bar and semicircle locking ring are additionally provided in the transition attachment base；

The copper-aluminium transition bar includes being equipped with card slot on the outside of one end and being axially arranged with screw hole and the other end is axially provided with the aluminium of blind hole Matter aluminium hydraulic pressed connecting pipe, axial direction have through-hole and its outer rim can plug cooperation with the quincunx contact and contact the copper circle to form current channel L head, the gasket of Copper-Aluminum compound material, fastening bolt and spring washer；

The blind pipe end cap of the aluminium hydraulic pressed connecting pipe is in the embedding pipe, and the locking ring by being caught in the card slot is erected at The embedding tube top end, and the shielding case by being pressed on the locking ring is locked on embedding pipe；

The gasket is arranged between the aluminium hydraulic pressed connecting pipe and the column cap；

The fastening bolt passes through the through-hole after being set with the spring washer and the gasket crimps the column cap with described Pipe connection fastening is integrally formed.

2. a kind of high pressure aluminium cable as described in claim 1 and copper conductor connecting device, it is characterised in that: described logical Hole and the screw hole have 1~16, and the fastening bolt and the spring washer have identical with the through-hole and the screw hole Number.

3. a kind of high pressure aluminium cable as described in claim 1 and copper conductor connecting device, it is characterised in that: described tight Fixing bolt specification is M3~M60.

4. a kind of high pressure aluminium cable as described in claim 1 and copper conductor connecting device, it is characterised in that: the spiral shell The aluminium hydraulic pressed connecting pipe periphery between hole and the blind hole is equipped with flange, and the embedding tube top portion is equipped with convex shoulder, and the aluminium hydraulic pressed connecting pipe passes through The flange, which is resisted against on the convex shoulder, determines that it is sleeved on the length in the embedding pipe.