KR930007388Y1 - Sleeve for electric wire - Google Patents

Abstract

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Description

Compression wire sleeve

1 is a perspective view showing a state in which the present invention is applied and used.

Figure 2a is an exploded perspective view of a first embodiment of the present invention, (b) is a cross-sectional view of the assembled state of Figure 2a.

Figure 3a is an exploded perspective view of a second embodiment of the present invention, (b) is an assembled state cross-sectional view of Figure 3a, (c) is an exploded perspective view showing a state in which the second embodiment of the present invention is used, (d) Assembly state diagram of Figure 3c.

Figure 4a is an exploded perspective view of a third embodiment of the present invention, (b) is an assembled state cross-sectional view of Figure 4a, (c) is an exploded perspective view showing a state in which the third embodiment of the present invention is used, (d) Figure 4c assembly state.

Figure 5a is an exploded perspective view of a fourth embodiment of the present invention, (b) is a cross-sectional view of the assembled state of (a) of the present invention.

Figure 6a is a perspective view of a fifth embodiment of the present invention, (b) is a cross-sectional view of Figure 6a, (c) is an exploded perspective view showing a state in which the fifth embodiment of the present invention is used, (d) is assembled in Figure 6c State diagram.

Figure 7a is a perspective view of a sixth embodiment of the present invention, (b) is a cross-sectional view of Figure 7a, (c) is an exploded perspective view showing a state in which the sixth embodiment of the present invention is used, (d) is assembled in Figure 7c State diagram.

* Explanation of symbols for main parts of the drawings

1: Sleeve body 2, 3: Insertion part

4 ring 4 'inner portion

4 ": outer part 5: grease

6,6 ': Connection part 7: Wire

8: main part 14,34: stud

15: connector 17: ties

24,32 Terminal 25: Connection

29: first sleeve 30: second sleeve

31: friction welding boundary surface

The present invention relates to a wire sleeve for compression, and more particularly to a sleeve for connecting the wire of the overhead distribution line with a switch or a transformer.

As the demand for wires in overhead power distribution lines has increased rapidly, the current has been changed to steel core aluminum insulated wire that can achieve the same effect with low price from bare copper wires. However, switchgear uses copper (Cu) as the main conducting part. ) And the heterogeneous connection of copper material could not be avoided. Therefore, when aluminum and copper are heterogeneously connected, when electrolyte is infiltrated at the interface between them, aluminum, which is a metal with low ionization potential, is dissolved and corroded to increase contact resistance. The step will eventually cause a disconnection accident.

In addition, even in the case of the same type of metal (material) contact, moisture infiltration and contact with the atmosphere form an oxide film on the contact surface, causing contact failure and proceeding to disconnection due to overheating. In addition, as a form of accident of another contact part, the disconnection of the element wire caused by the vibration of the wind, etc. of the contact part is enlarged, which is a serious problem especially in the case of the ultra-fine stranded wire which is manufactured to have high flexibility.

An object of the present invention is to solve the conventional problems as described above, by inserting a bimetal insulator of aluminum and copper to the sleeve of the aluminum or copper, or by welding the aluminum and copper fusion welded heterogeneous contact portion of copper and aluminum Water-proof paint is used to block the penetration of moisture and contact with the atmosphere, and the connections are formed at both ends to compress the wires so that the connections of the wires always allow the same type of metal contact to solve the problem of heterogeneous connections. Both ends of the sleeve that are compressed and combined with the wires again wrap the insulating layer of the wire and apply waterproof grease to prevent moisture penetration and contact with the connection part and to prevent the contact with the atmosphere. It also serves as a buffer to protect the wires from vibration.

Hereinafter, described in detail by the accompanying drawings as follows.

First, a description will be given with reference to FIG. 2.

2 is for the first embodiment of the present invention to form the inserting portion (2) (3) on both sides of the sleeve body (1) of aluminum or copper material and the insertion portion (3) of one side of the aluminum and copper Insert an aluminum or tin plated ring (4) into the bimetallic insert or copper tube. That is, the inner portion 4 'of the ring 4 is made of a material different from that of the sleeve body 1, and the outer portion 4 "is made of the same material. Further, at both ends of the sleeve body 1, connection portions ( 6), 6 '.

The first embodiment of the present invention configured as described above has the following effects. In the above description, the sleeve body 1 is made of aluminum, and the inner portion 4 'of the ring 4 is made of copper, and the outer portion 4' 'is made of aluminum. In this state, the one side insertion portion of the sleeve body 1 6) Insert the wire (7), the overhead distribution line of aluminum, and the main conducting portion (8) of the switch or the transformer into the ring (4).

By the way, before inserting the electric wire 7 into the inserting portion 2, after removing the oxide film with a brush on the inner surface of the inserting portion 2, immediately applying a compound (campound) mixed with metal oxide particles on the grease, Grease is applied to both connecting portions 6 and 6 'to insert the electric wire 7 and the main conducting portion 8 as described above. Thereafter, the sleeve body 1 is compressed to fix the wire 7 and the main conducting portion 8. By the way, the insertion part 2 and the ring 4 is inserted into the core 9 part with the insulation coating peeled off, and the insulation part 10 is inserted into the connecting parts 6 and 6 ', The grease 5 is coated on the inner surface of the connecting portion 6 and 6 'as described above.

One example used in this way is represented in FIG. In FIG. 1, reference numeral 11 denotes a pole, 12 denotes a transformer, and 13 denotes a transformer stand.

The present invention, which is used as shown in FIG. 1, configured as described above, firstly prevents electrolytic corrosion by causing the wires 7 or the main conducting portion 8 to be in contact with each other, ie, in the same material, without having a heterogeneous contact. It does not cause it and can prevent disconnection.

Second, as the grease 5 is applied to the connecting portions 6 and 6 ', the penetration of moisture and the contact with the atmosphere are prevented to prevent the formation of an oxide film. As a result, the contact state is good, and overheating is prevented to maintain a constant bonding state.

Thirdly, the insulating coating 10 is inserted into the connecting portions 6 and 6 'of the slip body 1 so that the connecting portion is cut by acting as a buffer in the insulating coating 10 even by vibrations such as wind. It can prevent the danger.

Next, a third embodiment shown as a second embodiment of the present invention will be described.

First, it will be described with reference to (a) and (b) of FIG.

A stud 14 is formed on one side of the sleeve body 1 made of copper or aluminum, and an inserting portion 2 and a connecting portion 6 are formed on the other side as in the first embodiment. A ring 4 is inserted into the inserting portion 2, but the ring 4 is the same as described in the first embodiment.

Referring to the effect of the second embodiment of the present invention made in this way as follows.

First, the second embodiment of the present invention will be described with reference to (c) and (d) of FIG. The sleeve body 1 is made of copper, and the inner part 4 'of the ring 4 is made of aluminum, and the outer part 4 "is made of copper. The insertion hole formed in the connector 15 of the transformer 12 is made of copper. The threaded portion 18 of the binding ring 17 penetrates into the 16, and the stud 14 is inserted into the insertion hole 19 of the connecting ring 17. The stud 14 is then seated in the seating groove 20. And the fastening ring 17 is fastened to the fastening groove 21, and then fastened by tightening the nut 22 to the screw portion 18. At this time, the stud 14 is connected to the connector 15 of the transformer 12. The connection is made, and the electric wire 7 is inserted into the ring 4 inserted into the insertion portion 2 of the sleeve body 1, and then the sleeve body 1 is compressed and firmly fixed.

According to the second embodiment of the present invention, which is used as described above, as the stud 14 is formed, the transformer can be firmly and easily connected to a switch or the like. Hereinafter, the effect of applying grease 5 to the connecting portion 6 and inserting the ring 4 into the inserting portion 2 is the same as the effect described in the first embodiment, and description thereof is omitted.

Next, a third embodiment of the present invention will be described with reference to FIG. 4.

First, a description will be given with reference to FIGS. 4A and 4B. On one side of the sleeve body 1 made of copper or aluminum, a terminal 24 having a fastening hole 23 is formed, and on the other side, the inserting portion 2 and the connecting portion 6 are the same as in the first and second embodiments. ) And insert the same ring (4) as the second embodiment into the inserting portion (2).

The effect on the third embodiment of the present invention configured in this way is explained.

First, description will be given by (c) and (d) of FIG. 4 as an example in which the third embodiment of the present invention is used. As described above, the sleeve body 1 is made of copper, and the ring 4 is made of aluminum, and the outer part 4 'is made of copper, as in the second embodiment.

Align the connecting piece 25 of the transformer 12 with the terminal 24 of the sleeve body 1 and insert the bolt 27 into the fastening hole 26 of the connecting piece 25 and the fastening hole 23 of the terminal 24. After fixing through the fastening nut (28). The wire 4 is inserted into, and fixed to, the other ring 4 as in the first and second embodiments.

As described above, by forming the terminal 24 on the other side of the sleeve body 1, it is possible to firmly and easily connect to a transformer or a switch. Hereinafter, the effect of applying grease 5 to the connecting portion 6 and inserting the ring 4 into the inserting portion 2 is the same as the effect described in the first embodiment, and a description thereof will be omitted.

Next, a fourth embodiment of the present invention will be described with reference to FIG.

The sleeve body 1 is formed of the first and second sleeves 29 and 30, but the first and second sleeves 29 and 30 are made of aluminum and aluminum having different materials. That is, the first sleeve 1 is made of copper or aluminum, and the second sleeve 30 is made of copper or aluminum having different materials from the first sleeve 29.

The first and second sleeves 29 and 30 are fusion-welded to form a friction welding heterogeneous boundary surface 31.

Therefore, the first and second sleeves 29 and 30 are integrally formed. In addition, a waterproof coating surface is formed around the friction welding heterogeneous boundary surface 31 to protect the friction welding heterogeneous boundary surface 31 from electrolytic corrosion due to penetration of moisture.

The first and second sleeves 29 and 30 are respectively provided with inserting portions 2 and 3, and at the outer ends thereof, connecting portions 6 and 6 'are formed. This is the same as that formed in the first embodiment.

Effects of the fourth embodiment of the present invention configured as described above will be described.

For the sake of explanation, the first sleeve 29 is made of aluminum, and the second sleeve 30 is made of copper. As described in the first embodiment, after removing the oxide film with a brush in the inserting portion 2 made of aluminum, the coating is applied immediately, and the wire 7 is the inserting portion of the first sleeve 29 made of aluminum. In (2), the main conducting portion 8 of the transformer or the switch is inserted and pressed into the inserting portion 3 of the second sleeve 30 made of copper. When the electric wire 7 and the main conducting portion 8 are inserted, the grease 5 is applied to the connecting portions 6 and 6 'as in the first embodiment. In this fourth embodiment, the first sleeve 29 and the second sleeve 30 are made of different materials, and the friction welding heterogeneous interface 31 is formed therebetween, and the first and second sleeve 29 are formed. Since the wires 30 do not penetrate each other, the wires 7 and the main conducting parts inserted into the insertion parts 2, 3 and the connection parts 6 and 6 of the first and second sleeves 29 and 30 are crimped. Moisture that can penetrate through the capillary of (8) does not cause electrolytic corrosion on the friction welding heterogeneous interface 31.

Description of the following effects are the same as the contents of the first embodiment, and description thereof will be omitted.

Next, a fifth embodiment of the present invention will be described with reference to FIG.

First, it will be described with reference to (a) and (b) of FIG. The sleeve body 1 of one side is formed of copper or aluminum, and the other side of the sleeve body 1 is formed of a terminal 32 made of copper or aluminum of a different material from the sleeve body 1, as in the fourth embodiment. Welding between the terminal and the terminal 32 to form a friction welding heterogeneous interface 31. A binding hole 33 is formed in the terminal 32, and an inserting portion 2 and a connecting portion 6 are formed in the sleeve body 1.

Effects of the fifth embodiment of the present invention constructed as described above will be described with reference to (c) and (d) of FIG.

Effects on the fifth embodiment are the same as those of the first, third and fourth embodiments. That is, the portion of the sleeve body 1 is described in the first embodiment, the portion of the terminal 32 is described in the third embodiment, and the portion of the friction welding heterogeneous boundary surface 31 is described in the fourth embodiment. Therefore, detailed description of the effects will be omitted below.

Incidentally, the same reference numerals as those in the drawings represented in the first, third and fourth embodiments are the same parts and the functions and effects are also the same.

Next, a sixth embodiment of the present invention will be described with reference to FIG.

First, description will be given by (a) and (b) of FIG. 7 shown.

The sleeve body 1 on one side is formed of copper or aluminum, and the stud 34 made of copper or aluminum of a different material from the sleeve body 1 is formed on the other side as in the fourth and fifth embodiments. The fusion welding is performed so that the friction welding heterogeneous interface 31 is formed between the sleeve body 1 and the stud 34. The insert body 2 and the connecting portion 6 are formed in the sleeve body 1.

Effects of the sixth embodiment of the present invention configured as described above will be described with reference to (c) and (d) of FIG.

The effects on the sixth embodiment are the same as those of the first, second and fourth embodiments. That is, the portion of the sleeve body 1 was described in the first embodiment, the portion of the stud 34 was described in the second embodiment, and the portion of the friction welding heterogeneous boundary surface 31 was described in the fourth embodiment. Therefore, detailed description of the effects will be omitted below. And the same reference numerals as those of the figures represented in the first, second and fourth embodiments are the same parts and the functions and effects are also the same.

As described above, the present invention inserts a bimetal insert of aluminum and copper into a sleeve of aluminum or copper, or forms a waterproof coating surface around a heterogeneous boundary between frictional welding of copper and aluminum by crimping and welding aluminum and copper. Therefore, by connecting the wires at both ends to block contact with the atmosphere and compressing the wires, the wires always allow only the same type of metal contact to solve the problem of heterogeneous connection. By covering the insulation coating, which is the insulation layer of the wire, and applying waterproof grease, it prevents moisture penetration into the connection and contact with the atmosphere, and protects the wire from vibrations such as wind in the insulation coating, which is the connected insulation layer of the wire. It is characterized by its role as a buffer.

Claims (6)

Inserts 2 and 3 are formed on both sides of the sleeve body 1 made of aluminum or copper, and a ring 4 is inserted into the insert 3 on one side, and the ring 4 has an inner portion 4 '. And an outer portion 4 ", the inner portion 4 'is made of a different material from the sleeve body 1, and the outer portion 4" is made of the same material, and both ends of the sleeve body 1 are connected to the connecting portion 6. (6 ') and the grease (5) is applied to the insert portion (2) (3) characterized in that the insertion and compression of the main conducting portion (8) such as the electric wire (7) and switch Wire sleeve for. The compression wire sleeve according to claim 1, wherein a stud (14) is formed on one side of the sleeve body (1). The compression wire sleeve according to claim 1, wherein a terminal (24) having a fastening hole (23) is formed at one side of the sleeve body (1). 2. The sleeve body (1) according to claim 1, wherein the sleeve body (1) is formed of first and second sleeves (29) (30), wherein the first and second sleeves (29) (30) are made of copper and aluminum of different materials. The compression wire sleeve for compression, characterized in that the fusion welding so as to form a friction welding interface (31). The compression wire sleeve according to claim 1, wherein the one side of the sleeve body (1) is fused and crimped so that a terminal (32) having different mutual materials is formed so as to form a friction welding interface (31). The compression wire sleeve according to claim 1, wherein one side of the sleeve body (1) is fused and crimped so that studs (34) having different mutual materials are formed so as to form a friction welding heterogeneous interface (31).