CN205141182U - Copper and aluminum transitional device clamp - Google Patents

Abstract

The utility model belongs to the technical field of power grid equipment and provides a wire clip for copper-aluminum transition equipment. The copper-aluminum transition equipment clamp includes: a wire crimping part, the wire crimping part includes a hollow part and a solid part; the hollow part is a hollow tubular structure with one end open for crimping the wire; one end of the solid part is connected to the hollow part, The other end is connected with the wiring board; the copper-aluminum transition piece is brazed on the wiring board; the pipe wall at the opening end of the hollow part has an opening. The copper-aluminum transition equipment clamp provided by the utility model can insert a wire with a slightly larger inner diameter than the hollow tubular structure of the hollow part, and the operation of inserting the wire is easier. At the same time, when the wire is completely inserted into the hollow part, it can also The outside of the hollow part uses fastening tape to fasten the part with the opening in the hollow part, so that the connection between the wire and the copper-aluminum transition equipment clamp is more firm. In addition, the clamp has high strength, large carrying capacity, easy replacement and low cost.

Description

Copper-aluminum transition equipment clamp

technical field

The utility model belongs to the technical field of power grid equipment, in particular to a wire clamp for copper-aluminum transition equipment.

Background technique

Early copper-aluminum transition butt welding and crimping equipment clamps were limited by the operating environment, such as the swing of the wires in windy areas, which gave the clamps additional tension on the welds. Long-term operation may easily cause the clamps to break and cause phase-to-phase discharge faults. . At present, there are mainly three methods for replacing the copper-aluminum transition butt welding crimping clamp: 1. Cut off from the tail of the original crimping clamp, and install a transition plate without changing the wire. This method will increase the contact point. Increase the overall circuit resistance of the isolating switch; 2. Replace the entire wire including the crimping clamp, which will increase the cost, and some wires are integrated with the overhead line, which is not suitable for replacement. 3. Remove the crimping clip from the wire, keep the original wire length, and re-crimp the new clip. This method is time-consuming and laborious, and it cannot ensure that the crimping part of the original wire is flat, and it is easy to cause overheating of the crimping part. At present, there is no new type of copper-aluminum transition equipment clip that can meet the requirements of not replacing the wire, convenient replacement of the clip, short time consumption, and high bonding strength with the wire.

Utility model content

The purpose of this utility model is to solve the above-mentioned problems existing in the prior art. By improving the structure of the copper-aluminum transition equipment wire clamp, it can not only meet the requirement of quickly changing the wire clamp without changing the wire, but also have a higher combination with the wire. Strength of the new copper-aluminum transition equipment clamps.

The utility model is achieved through the following technical solutions:

The utility model provides a copper-aluminum transition equipment clamp, and the copper-aluminum transition equipment clamp includes:

A wire crimping part, the wire crimping part includes a hollow part and a solid part; the hollow part is a hollow tubular structure with an open end for crimping a wire; one end of the solid part is connected to the hollow part, and the other One end is connected with the wiring board; the copper-aluminum transition piece is brazed on the wiring board; the opening end of the hollow part has an opening on the pipe wall.

Preferably, in the copper-aluminum transition equipment clamp provided by the present invention, the length of the opening is 1/5-1/2 of the length of the hollow part, more preferably 1/3.

Preferably, in the copper-aluminum transition equipment clamp provided by the utility model, there is one opening.

Preferably, in the copper-aluminum transition equipment clamp provided by the utility model, there are at least two openings, more preferably three openings.

Preferably, in the copper-aluminum transition equipment clamp provided by the utility model, the openings are evenly distributed on the pipe wall of the hollow part.

Preferably, in the copper-aluminum transition equipment clamp provided by the utility model, the lengths of the hollow part and the solid part are equal.

Further preferably, in the copper-aluminum transition equipment clamp provided by the present invention, the lengths of the hollow part and the solid part are both 130 mm.

Preferably, in the copper-aluminum transition equipment clamp provided by the utility model, the length and width of the wiring board are 80mm×80mm.

The copper-aluminum transition equipment clamp provided by the utility model is provided with an opening on the pipe wall of the open end of the hollow part of the wire crimping part, so that a wire with a slightly larger inner diameter than the hollow tubular structure of the hollow part can be inserted, and The operation of inserting the wire is easier; at the same time, when the wire is completely inserted into the hollow part, the fastening belt can also be used outside the hollow part to fasten the part with the opening of the hollow part, making the connection between the wire and the copper-aluminum transition equipment clamp more convenient. For firm. Moreover, because the wire crimping part adopts a two-stage structure mode of hollow part and solid part, the strength and current carrying capacity of the copper-aluminum transition equipment clamp are effectively guaranteed, and it is easy to replace the clamp, shortening the operation time and reducing the costs.

Description of drawings

Fig. 1 is a front view of the copper-aluminum transition equipment clamp of the preferred embodiment of the present invention.

Fig. 2 is a side view of the copper-aluminum transition equipment clamp of the preferred embodiment of the present invention.

Fig. 3 is a sectional view along line A-A of Fig. 2 .

Wherein, the reference signs in the figure are explained as follows:

1 wire crimping part 11 hollow part 12 solid part

13 openings 2 wiring boards 3 copper-aluminum transition pieces

detailed description

In order to make the purpose, technical solutions and advantages of the utility model clearer, the implementation of the utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in Fig. 1, Fig. 2 and Fig. 3, the copper-aluminum transition equipment clamp of the preferred embodiment of the present invention includes a wire crimping part 1, and the wire crimping part 1 includes a hollow part 11 and a solid part 12; wherein, the hollow part 11 is a hollow tubular structure with one end open, used for crimping wires, one end of the solid part 12 is connected to the hollow part 11, and the other end is connected to the terminal board 2; the copper-aluminum transition piece 3 is brazed on the terminal board 2; the hollow part 11 There is an opening 13 on the pipe wall at the open end of the pipe.

In the copper-aluminum transition equipment clamp provided by the utility model, since there is an opening 13 on the pipe wall at the opening end of the hollow part 11, the opening of the hollow part 11 can be moderately expanded, so that a larger than the hollow part can be inserted into the hollow part 11. 11, the inner diameter of the nozzle of the hollow tubular structure is slightly larger, and the operation of inserting the wire is easier. And in the hollow part 11, insert the wire that is slightly larger than the nozzle inner diameter of the hollow tubular structure of the hollow part 11, can increase the contact area between the wire and the hollow part and the distance between the wire and the copper-aluminum transition equipment clamp provided by the utility model Bonding firmness. At the same time, when the wire is completely inserted into the hollow part 11, a fastening belt can be used outside the hollow part 11 to fasten the opening of the hollow part 11, so that the connection between the wire and the copper-aluminum transition equipment clamp is more firm.

Preferably, the length of the opening 13 (the length extending along the axial direction of the wire crimping part 1 ) is 1/5-1/2 of the length of the hollow part 11 (the length extending along the axial direction of the wire crimping part 1 ) , more preferably 1/3. Meanwhile, there may be one opening 13, or at least two (ie: two or more than two). When there are at least two openings 13 , preferably each opening is evenly distributed on the tube wall of the hollow portion 11 . For example, there may be three openings 13, which are evenly distributed on the tube wall of the hollow part 11.

In the copper-aluminum transition equipment clamp provided by the utility model, since the wire crimping part 1 is divided into a hollow part 11 and a solid part 12, the hollow part 11 can crimp the wire, and the solid part 12 is closely connected with the wiring board 2, so that the wire The crimping part 1 not only satisfies the function of crimping wires due to the existence of the hollow part 11, but also ensures the strength and current carrying capacity of the copper-aluminum transition equipment clamp of the utility model effectively due to the existence of the solid part 12. At the same time, due to the existence of the solid part 12, the length of the copper-aluminum transition equipment clamp is directly increased. The copper-aluminum transition equipment clamp has an extra solid tube part 12 to fill the missing length of the wire, so when replacing the copper-aluminum transition equipment clamp, the wire can be cut off from the tail of the original copper-aluminum transition equipment clamp, and then directly The wires can be crimped to the hollow tube part 11 of the copper-aluminum transition equipment clamp of the utility model without replacing the wires, thereby reducing the cost.

Preferably, in the copper-aluminum transition equipment clamp provided by the present invention, the lengths of the hollow part 11 and the solid part 12 are equal. Further preferably, the lengths of the hollow part 11 and the solid part 12 are both 130 mm. Like this, when replacing the old copper-aluminum transition equipment clamp of the present utility model with the new copper-aluminum transition equipment clamp of the present utility model, the wires can be easily removed from the old copper-aluminum transition equipment clamp of the present utility model The middle position of the crimping part 1 (that is, the junction of the hollow part 11 and the solid part 12) is cut off, and after the wire is stripped from the hollow part, the wire can be crimped to a new copper-aluminum transition device of the present utility model conveniently The hollow part of the wire crimping part of the wire clip, so that under the premise of not replacing the wire, the tightness of the original wire can also be maintained, as well as the crimping length and crimping length of the wire and the copper-aluminum transition equipment wire clip of the utility model. quality.

In the copper-aluminum transition equipment clamp provided by the utility model, in order to improve the contact surface between the terminal board 2 and the copper-aluminum transition piece 3, the length and width of the terminal board 2 of the present invention are 80mm×80mm.

It can be known from technical knowledge that the utility model can be realized through other implementations without departing from its spirit or essential features. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the utility model or within the range equivalent to the utility model are included in the utility model.

Claims (7)

1. A copper-aluminum transition equipment clamp, characterized in that: the copper-aluminum transition equipment clamp comprises: A wire crimping part, the wire crimping part includes a hollow part and a solid part; the hollow part is a hollow tubular structure with an open end for crimping a wire; one end of the solid part is connected to the hollow part, and the other One end is connected with the wiring board; the copper-aluminum transition piece is brazed on the wiring board; the opening end of the hollow part has an opening on the pipe wall. 2. The wire clip for copper-aluminum transition equipment according to claim 1, wherein the length of the opening is 1/5-1/2 of the length of the hollow portion. 3. The wire clamp for copper-aluminum transition equipment according to claim 2, wherein the length of the opening is 1/3 of the length of the hollow portion. 4. The copper-aluminum transition equipment clamp according to claim 2 or 3, characterized in that there is only one opening. 5. The copper-aluminum transition equipment clamp according to claim 2 or 3, characterized in that there are at least two openings. 6. The wire clip for copper-aluminum transition equipment according to claim 5, wherein there are three openings. 7. The wire clamp for copper-aluminum transition equipment according to claim 6, wherein the openings are evenly distributed on the pipe wall of the hollow portion.