CN211350139U

CN211350139U - Branch cable

Info

Publication number: CN211350139U
Application number: CN202020442199.4U
Authority: CN
Inventors: 傅杰; 甄武旺; 竺捷
Original assignee: Shanghai Shanglan Shenzhou Cable Co ltd
Current assignee: Shanghai Shanglan Shenzhou Cable Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-08-25
Anticipated expiration: 2030-03-31

Abstract

The utility model provides a branch cable has such characteristic, include: a main cable core including 12 first insulated wires; three branch cable cores, each branch cable core having 4 second insulated wires which are extensions of the first insulated wires, each branch cable core having a connection region and a branch region, the connection region being connected to the main cable core; the main sheath is sleeved outside the core of the main cable; the connecting sheath covers the connecting areas of the three branch cable cores, and the three branch cable cores are positioned in the same horizontal plane, and the two adjacent branch cable cores are arranged at a preset included angle; the three branch sheaths are respectively sleeved on the outer sides of the three branch regions, the first insulating wire comprises an insulating layer and a conductor, the connecting sheath is shaped in a rubber mould pressing injection mode, and the main sheath, the connecting sheath and the branch sheaths are rubber sheaths.

Description

Branch cable

Technical Field

The utility model relates to a cable, concretely relates to branch cable.

Background

The branch cable is generally applied to a power system, a pre-branch mode is adopted, an insulating layer is cut off at a certain part of a main cable, then a conductor of the branch cable is pressed on the conductor of the main cable, the conductors are connected, finally the insulating layer is injected or coated at the branch part, a trunk and branches are formed, and finally the tree-shaped branch cable is formed. However, the branch cable of this structure has the following problems: firstly, in the process of using the cable for multiple times, because the branch part always moves, the part of the insulating layer coated by the branch part and connected with the insulating layer of the branch cable is easy to damage, and further electric leakage is caused; secondly, the insulating layer of the whole branch cable is exposed outside directly, and is easy to damage after being dragged and rolled repeatedly; thirdly, since the main cable only comprises one conductor and each branch cable also comprises only one conductor, the power transmission performance of the whole cable is very single.

In order to solve the problem of single power transmission performance of the branch cable, the following cables are adopted to replace the branch cable in the prior art: the method comprises the steps of directly bundling a plurality of insulated wires into a bundle (serving as a trunk), then uniformly dividing the insulated wires into a plurality of bundles to be bundled respectively (serving as branch cables), and finally covering one to several layers of wrapping belts at the trunk bundle branch position to protect the insulated wires placed at the trunk bundle branch position. However, this alternative structure has the following drawbacks: the trunk bundle combining branch is coated by a wrapping tape and is easy to loosen, so that the insulated wire at the position is easy to expose, and the insulating layer of the insulated wire is damaged when the trunk bundle combining branch is used; in addition, except for the whole cable, the part where the main bundle is combined and branched is covered by a wrapping tape, the insulating layers of other parts are still exposed, and the cable is damaged.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above problems, and an object of the present invention is to provide a branch cable.

The utility model provides a branch cable has such characteristic, include: a main cable core including 12 first insulated wires; three branch cable cores, each having 4 second insulated wires which are extensions of the first insulated wires, and each having a connection region and a branch region, the connection region being connected to the main cable core; the main sheath is sleeved outside the core of the main cable; the connecting sheath covers the connecting areas of the three branch cable cores, and the three branch cable cores are positioned in the same horizontal plane and a preset included angle is formed between two adjacent branch cable cores; and the three branch sheaths are respectively sleeved outside the branch areas of the three branch cable cores, the first insulated wire comprises an insulating layer and a conductor arranged in the insulating layer, the connecting sheath is shaped by adopting a rubber mould pressing injection molding mode, one end of the connecting sheath is connected with the main sheath, the other end of the connecting sheath is connected with the three branch sheaths, and the main sheath, the connecting sheath and the branch sheaths are rubber sheaths.

In the utility model provides an among the branch cable, can also have such characteristic: wherein, 12 first insulated wires of main cable core are twisted together, and 4 second insulated wires of branch cable core are restrainted together.

In the utility model provides an among the branch cable, can also have such characteristic: wherein, the main sheath, the connecting sheath and the branch sheath are chlorosulfonated polyethylene rubber sheaths.

In the utility model provides an among the branch cable, can also have such characteristic: wherein, the thickness of the main sheath is 1.4mm-1.6mm, and the thickness of the branch sheath is 0.9mm-1.1 mm.

In the utility model provides an among the branch cable, can also have such characteristic: wherein, the connecting sheath is in a cone shape.

In the utility model provides an among the branch cable, can also have such characteristic: wherein the predetermined included angle is 0-10 deg.

In the utility model provides an among the branch cable, can also have such characteristic: wherein the conductor is formed by bundling 19 silver-plated soft copper wires with the diameter of 0.16mm, and the sectional area of the conductor is 0.6mm²。

In the utility model provides an among the branch cable, can also have such characteristic: wherein, the insulating layer is ethylene-tetrafluoroethylene copolymer, and the thickness thereof is 0.24mm-0.26 mm.

Action and effect of the utility model

According to the utility model relates to a branch cable, because including main cable core and three branch cable core, main cable core includes 12 first insulated wire, and three branch cable line respectively has 4 second insulated wire, and this second insulated wire is the extension of first insulated wire, and first insulated wire includes insulating layer and conductor, and consequently 12 insulated wire of this branch cable are insulated each other, can carry out power transmission respectively, have solved branch cable's among the prior art problem that power transmission performance is single.

Furthermore, the branch cable of the utility model also comprises a main sheath, a connecting sheath and three branch sheaths which are rubber sheaths, wherein the main sheath is sleeved outside the core of the main cable, so as to protect the core of the main cable; the connecting sheath covers the connecting areas of the three branch cable cores so as to protect the connecting areas of the branch cable cores; the branch sheath cover is established in the regional outside of branch to protect branch region to branch cable core, consequently, whole branch cable is protected by rubber sheath, avoids insulated wire's insulating layer direct exposure outside, has protected the insulating layer, and rubber sheath has soft and wear-resisting characteristics, still makes this branch cable when using resistant drawing and be convenient for the rolling when collecting.

Furthermore, the connecting sheath is shaped by adopting a rubber mould pressing injection molding mode, and the three branch cable cores are positioned in the same horizontal plane and a preset included angle is formed between the two adjacent branch cable cores, so that the connecting area of the branch cable cores is fixed, the damage of the connecting sheath caused by continuous movement of the connecting area when in use is avoided, and the connecting sheath can be ensured to protect the connecting area more durably.

Drawings

Fig. 1 is a schematic structural diagram of a branch cable according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a primary cable core and a primary sheath in an embodiment of the invention; and

fig. 3 is a cross-sectional view of a branch region and branch jacket of a branch cable core according to an embodiment of the present invention.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and efficiency are easily understood and known, the following embodiment is combined with the accompanying drawings to be specific to the utility model discloses branch cable.

Fig. 1 is a schematic structural diagram of a branch cable according to an embodiment of the present invention.

As shown in fig. 1, the branch cable 100 in the present embodiment includes a main cable core 10, a branch cable core 20, a main sheath 30, a connection sheath 40, and a branch sheath 50.

Fig. 2 is a cross-sectional view of a main cable core and a main sheath in an embodiment of the invention.

As shown in fig. 2, the main cable core 10 includes 12 first insulated wires 11 twisted together. The first insulated wire 11 includes an insulating layer 111 and a conductor 112 disposed in the insulating layer 111.

The insulating layer 111 is an ethylene-tetrafluoroethylene copolymer and has a thickness of 0.24mm to 0.26 mm. In the present embodiment, the thickness of the insulating layer 111 is 0.25 mm.

The conductor 112 is formed by bundling 19 silver-plated soft copper wires with the diameter of 0.16mm, and the sectional area of the conductor is 0.6mm²。

The main sheath 30 is sleeved outside the main cable core 10 and used for protecting the 12 first insulated wires 11. The length of the primary sheath 30 is equal to the length of the primary cable core 10. The main sheath 30 is a rubber sheath with a thickness of 1.4mm-1.6 mm. In this embodiment, the main sheath 30 is a chlorosulfonated polyethylene rubber sheath, and is formed by extrusion molding, and the thickness is 1.5 mm. The main sheath 30 is sleeved outside the main cable core 10, and the overall outer diameter is 7.4 mm.

As shown in fig. 1 and 3, the number of the branch cable cores 20 is three, and each branch cable core 20 has 4 second insulated wires 21 bundled together. The second insulated wire 21 is an extension of the first insulated wire 11. That is, the 12 first insulated wires 11 of the main cable core 10 may be divided into three groups, and the 4 first insulated wires 11 of each group extend outward from the main sheath 30, respectively, to form three branch cable cores 20, respectively. Therefore, the second insulated wire 21 has the same structure as the first insulated wire 11.

Each branch cable core 20 has a connection region 20a and a branch region 20 b. That is, each branch cable core 20 is divided into two parts, in the length direction thereof, a connection region 20a and a branch region 20b, wherein the connection region 20a is a part of the branch cable core 20 directly connected with the main cable core 10.

The length of the main cable core 10 and the length of the branch cable core 20 can be set according to actual needs. In the present embodiment, the lengths of the three branch cable cores 20 may be the same or different.

The connecting sheath 40 covers the connecting areas 20a of the three branch cable cores 20 inside, and the connecting sheath 40 is shaped by adopting a rubber mould pressing injection molding mode. In this embodiment, the coupling sheath 40 is pyramidal. The sheath 4 is connected to enable the three branch cable cores 20 to be located in the same horizontal plane, and a preset included angle is formed between every two adjacent branch cable cores 20, and the preset included angle is 0-10 degrees. In the present embodiment, the angle between two adjacent branch cable cores 20 is 7 °. The connecting sheath 40 is a chlorosulfonated polyethylene rubber sheath.

As shown in fig. 1 and 3, the number of the branched sheaths 50 is three. The three branch sheaths 50 are respectively sleeved outside the branch regions 20b of the three branch cable cores 20. Each of the branched sheaths 50 has the same length as the corresponding branched region 20 b. The branch sheath 50 is a rubber sheath, and the thickness thereof is 0.9mm-1.1 mm. In the present embodiment, the branched sheath 50 is a chlorosulfonated polyethylene rubber sheath having a thickness of 1.0 mm. The branch jacket 50 may be extruded or the formed jacket may be directly fitted over the branch cable core 20. Effects and effects of the embodiments

According to the branch cable related to the embodiment, because the branch cable comprises the main cable core and the three branch cable cores, the main cable core comprises 12 first insulated wires, the three branch cable wires respectively comprise 4 second insulated wires, the second insulated wires are extension parts of the first insulated wires, and the first insulated wires comprise the insulating layer and the conductor, the 12 insulated wires of the branch cable are insulated from each other, power transmission can be respectively carried out, and the problem that the power transmission performance of the branch cable in the prior art is single is solved.

Further, the branch cable in this embodiment further includes a main sheath, a connection sheath and three branch sheaths, all of which are rubber sheaths, and the main sheath is sleeved on the outer side of the core of the main cable, so as to protect the core of the main cable; the connecting sheath covers the connecting areas of the three branch cable cores so as to protect the connecting areas of the branch cable cores; the branch sheath cover is established in the regional outside of branch to protect branch region to branch cable core, consequently, whole branch cable is protected by rubber sheath, avoids insulated wire's insulating layer direct exposure outside, has protected the insulating layer, and rubber sheath has soft and wear-resisting characteristics, still makes this branch cable when using resistant drawing and be convenient for the rolling when collecting.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

Claims

1. A branch cable, comprising:

a main cable core including 12 first insulated wires;

three branch cable cores, each of the branch cable cores having 4 second insulated wires which are extensions of the first insulated wires, and each of the branch cable cores having a connection region and a branch region, the connection region being connected to the main cable core;

the main sheath is sleeved on the outer side of the main cable core;

the connecting sheath covers the connecting areas of the three branch cable cores, and enables the three branch cable cores to be positioned in the same horizontal plane and the two adjacent branch cable cores to form a preset included angle; and

three branch sheaths respectively sleeved outside the branch regions of the three branch cable cores,

wherein the first insulated wire includes an insulating layer and a conductor disposed within the insulating layer,

the connecting sheath is shaped by adopting a rubber mould pressing injection molding mode,

one end of the connecting sheath is connected with the main sheath, the other end is connected with the three branch sheaths,

the main sheath, the connecting sheath and the branch sheaths are all rubber sheaths.

2. The drop cable of claim 1, wherein:

12 first insulated wires of the main cable core are twisted together, and 4 second insulated wires of the branch cable core are bound together.

3. The drop cable of claim 1, wherein:

the main sheath, the connecting sheath and the branch sheath are all chlorosulfonated polyethylene rubber sheaths.

4. The drop cable of claim 1, wherein:

wherein the thickness of the main sheath is 1.4mm-1.6mm, and the thickness of the branch sheath is 0.9mm-1.1 mm.

5. The drop cable of claim 1, wherein:

wherein, the connecting sheath is in a cone shape.

6. The drop cable of claim 1, wherein:

wherein the predetermined included angle is 0-10 degrees.

7. The drop cable of claim 1, wherein:

the conductor is formed by bundling 19 silver-plated soft copper wires with the diameter of 0.16mm, and the sectional area of the conductor is 0.6mm²。

8. The drop cable of claim 1, wherein:

wherein, the insulating layer is ethylene-tetrafluoroethylene copolymer, and the thickness thereof is 0.24mm-0.26 mm.