CN217113862U

CN217113862U - Environment-friendly high-performance polypropylene insulated power cable

Info

Publication number: CN217113862U
Application number: CN202220892331.0U
Authority: CN
Inventors: 刘丽丽; 黄宏伟; 赵克山; 成龙; 刘燕飞; 张中田
Original assignee: Xinchengrui Cable Co ltd
Current assignee: Xinchengrui Cable Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-08-02
Anticipated expiration: 2032-04-18

Abstract

The utility model discloses an environment-friendly high-performance polypropylene insulated power cable, which relates to the technical field of cables and comprises an outer sheath, wherein the inner side of the outer sheath is wrapped with a galvanized steel strip armor, the inner side of the galvanized steel strip armor is wrapped with an isolation sleeve, the inner side of the isolation sleeve is wrapped with an inner cable group, the cable can ensure the flexibility and the air tightness of the cable without increasing the redundant weight through the outer sheath of polyvinyl chloride and the copper conductor group inside the isolation sleeve, is matched with a plurality of movable grooves arranged on the outer surface of an insulating layer, is convenient for bending when in construction and laying, ensures the strength of the cable, is also convenient for cutting when in laying by the movable grooves arranged at equal intervals, improves the efficiency of laying and mounting by workers, saves physical strength, has simple structure and lower cost, can disperse impact force under the condition that the cable is impacted by external force, and prevents the copper conductor group inside the cable from being damaged, further prolonging the service life of the cable.

Description

Environment-friendly high-performance polypropylene insulated power cable

Technical Field

The utility model relates to the technical field of cables, specifically be an environment-friendly high performance polypropylene insulation power cable.

Background

Power cable need follow the circuit crooked fixed at the laying process, but power cable among the prior art is wrapping up thick protective layer and insulating layer usually, and the installation is crooked comparatively difficult, and the cable leads to its inside wire group impaired easily under receiving external force impact to reduce the life of cable, easy short circuit damages, and current cable is owing to need possess the protection effect, and its self weight is heavier, is difficult to transport the transport, leads to the construction to overhaul the difficulty.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an environment-friendly high performance polypropylene insulation power cable has solved cable laying construction difficulty and the easy impaired problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an environment-friendly high-performance polypropylene insulated power cable comprises an outer sheath, wherein a galvanized steel armor tape is wrapped on the inner side of the outer sheath, an isolation sleeve is wrapped on the inner side of the galvanized steel armor tape, and an inner cable group is wrapped on the inner side of the isolation sleeve;

the inner cable set comprises three filling layers, three copper conductor sets are arranged on the inner sides of the three filling layers, a conductor shielding layer is arranged on the outer surface of each copper conductor set, an insulating layer is arranged on the outer surface of each conductor shielding layer, and a plurality of movable grooves are formed in the outer surface of each filling layer at equal intervals.

As a further technical scheme of the utility model, the inboard of activity groove just corresponds with three filling layer and is connected with three movable block, and is three the inside wall of movable block all is connected with coupling spring, coupling spring's bottom is connected with the connecting block.

As a further technical scheme of the utility model, the surface parcel of insulating layer has the insulation shield layer, the surface of insulation shield layer is provided with the copper strips shielding layer, the surface of filling layer just is located and is provided with the non-woven fabrics area between two movable blocks.

As a further technical scheme of the utility model, the movable block is non-hygroscopicity material, the inside wall of connecting block corresponds with copper strips shielding layer's surface and sets up flutedly, the inside wall of connecting block laminates with copper strips shielding layer's surface mutually.

As a further technical scheme of the utility model, oversheath and spacer sleeve are the polyvinyl chloride material, the filling layer is filled to non-hygroscopicity material, just the insulating layer is the polypropylene material.

As a further technical scheme of the utility model, the internal diameter size of activity groove and the external diameter size phase-match of movable block, the movable block passes through connecting block and coupling spring to be connected in copper strips shielding layer's surface.

Advantageous effects

The utility model provides an environment-friendly high performance polypropylene insulation power cable. Compared with the prior art, the method has the following beneficial effects:

1. the utility model provides an environment-friendly high performance polypropylene insulation power cable, the inside copper conductor group of oversheath and the separation sleeve protection through polyvinyl chloride, can guarantee its compliance and gas tightness under the condition that does not increase unnecessary weight, and with the cooperation of a plurality of movable grooves that the insulating layer surface was seted up, the crooked when being convenient for construct and lay, and guarantee its intensity, the cutting when the movable groove that the equidistance set up is also convenient for lay, improve the workman and lay the efficiency of installation, practice thrift physical power, and simple structure, the cost is lower.

2. The utility model provides an environment-friendly high performance polypropylene insulation power cable, through the cooperation that is located the movable block and connecting spring and the connecting block of activity inslot, can receive the dispersion impact force under the condition that external force strikes at the cable, prevent that its inside copper wire group is impaired, and the insulating layer that is located the polypropylene material in the copper wire group outside can improve the shock resistance ability and the high temperature resistance ability of copper wire group, further promotes the life of cable.

Drawings

FIG. 1 is a schematic structural diagram of an environment-friendly high-performance polypropylene insulated power cable;

FIG. 2 is a left side view of an environmentally friendly high performance polypropylene insulated power cable;

FIG. 3 is a cross-sectional view A-A of FIG. 2 of an environmentally friendly high performance polypropylene insulated power cable;

FIG. 4 is a schematic structural diagram of an inner cable set of an environmentally friendly high performance polypropylene insulated power cable;

fig. 5 is a schematic diagram of the internal structure of the inner cable group of the environment-friendly high-performance polypropylene insulated power cable.

In the figure: 1. an outer sheath; 2. galvanizing steel tape armoring; 3. an isolation sleeve; 41. a filling layer; 42. a copper wire group; 43. an insulating layer; 44. an insulating shield layer; 45. a copper strip shielding layer; 46. a non-woven fabric tape; 47. a movable block; 48. a movable groove; 49. connecting blocks; 401. a connecting spring; 402. a conductor shield layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution of an environment-friendly high-performance polypropylene insulated power cable: the utility model provides an environment-friendly high performance polypropylene insulation power cable, including oversheath 1, oversheath 1's inboard is wrapping up galvanized steel strip armor 2, the inboard of galvanized steel strip armor 2 is wrapping up isolation sleeve 3, the inboard of isolation sleeve 3 is wrapping up interior cable assembly, interior cable assembly is including three filling layer 41, the inboard of three filling layer 41 is provided with three copper conductor group 42, the surface of copper conductor group 42 is provided with conductor shielding layer 402, the surface of conductor shielding layer 402 is provided with insulating layer 43, a plurality of movable grooves 48 have been seted up to the surface equidistance of filling layer 41.

The inner side of the movable groove 48 is correspondingly connected with three movable blocks 47 with three filling layers 41, the inner side walls of the three movable blocks 47 are connected with connecting springs 401, the bottom end of each connecting spring 401 is connected with a connecting block 49, each movable block 47 is made of a non-hygroscopic material, the inner side wall of each connecting block 49 is correspondingly provided with a groove with the outer surface of the copper strip shielding layer 45, the inner side wall of each connecting block 49 is attached to the outer surface of the copper strip shielding layer 45, the inner diameter of the movable groove 48 is matched with the outer diameter of the corresponding movable block 47, each movable block 47 is connected to the outer surface of the corresponding copper strip shielding layer 45 through the connecting block 49 and the connecting spring 401, it needs to be explained that the copper strip shielding layer 45 can reduce signal interference of an electric field generated by an internal lead and current to the outside, the non-hygroscopic materials of the filling layers 41 and the movable blocks 47 can prevent moisture from entering the inside of the movable grooves, and the movable blocks 47, the connecting springs 401 and the movable grooves 48 are matched, the copper conductor set 42 can be prevented from being extruded by the outside, and the arrangement of the plurality of movable grooves 48 can facilitate the bending and wiring of the cable.

The surface coating of insulating layer 43 has insulation shield 44, insulation shield 44's surface is provided with copper strip shielding layer 45, the surface of filling layer 41 and be located and be provided with nonwoven cloth belt 46 between two movable blocks 47, oversheath 1 and spacer sleeve 3 are the polyvinyl chloride material, filling layer 41 is filled to non-hygroscopic material, and insulating layer 43 is the polypropylene material, it is required to explain, the texture of the polyvinyl chloride material of oversheath 1 and spacer sleeve 3 is lighter, corrosion resistance can the reinforce, its inboard copper conductor group of protection that can be fine, and its density of insulating layer 43 of polypropylene material is less, the texture is light, not only do not absorb water and high temperature resistant shock, can promote the bulk strength and the life of cable.

The utility model discloses a theory of operation: when the cable is laid and installed, the inner cable group positioned on the inner side of the isolation sleeve 3 is bent along with the cable when the cable is bent, the bending degree of the cable can be increased by the plurality of movable grooves 48 which are formed in the outer surface of the filling layer 41 at equal intervals, and the difficulty in laying and installing is reduced due to the soft property of the outer sheath 1 and the isolation sleeve 3 made of the polyvinyl chloride;

when the cable is impacted by external force, the external force is transmitted to the outer surface of the filling layer 41 after being weakened by the galvanized steel tape armor 2 and the isolation sleeve 3 of the outer sheath 1, the movable blocks 47 connected to the inner sides of the plurality of movable grooves 48 slide down under stress, and impact force is dispersed by the connecting springs 401 and the connecting blocks 49 connected with the inner side walls of the movable blocks, so that the copper conductor group 42 can be protected.

Claims

1. The environment-friendly high-performance polypropylene insulated power cable comprises an outer sheath (1) and is characterized in that the inner side of the outer sheath (1) is wrapped with a galvanized steel strip armor (2), the inner side of the galvanized steel strip armor (2) is wrapped with an isolation sleeve (3), and the inner side of the isolation sleeve (3) is wrapped with an inner cable group;

the inner cable group comprises three filling layers (41), three copper conductor groups (42) are arranged on the inner sides of the three filling layers (41), a conductor shielding layer (402) is arranged on the outer surface of each copper conductor group (42), an insulating layer (43) is arranged on the outer surface of each conductor shielding layer (402), and a plurality of movable grooves (48) are formed in the outer surface of each filling layer (41) at equal intervals.

2. The environment-friendly high-performance polypropylene insulated power cable according to claim 1, wherein three movable blocks (47) are connected to the inner side of the movable groove (48) and correspond to the three filling layers (41), the inner side walls of the three movable blocks (47) are connected with connecting springs (401), and the bottom ends of the connecting springs (401) are connected with connecting blocks (49).

3. The environment-friendly high-performance polypropylene insulated power cable as claimed in claim 1, wherein the outer surface of the insulating layer (43) is wrapped with an insulating shielding layer (44), the outer surface of the insulating shielding layer (44) is provided with a copper tape shielding layer (45), and the outer surface of the filling layer (41) and between the two movable blocks (47) is provided with a non-woven fabric tape (46).

4. The environment-friendly high-performance polypropylene insulated power cable as claimed in claim 2, wherein the inner side wall of the connecting block (49) is provided with a groove corresponding to the outer surface of the copper tape shielding layer (45), and the inner side wall of the connecting block (49) is attached to the outer surface of the copper tape shielding layer (45).

5. The environment-friendly high-performance polypropylene insulated power cable as claimed in claim 1, wherein the outer sheath (1) and the isolation sleeve (3) are both made of polyvinyl chloride, and the insulation layer (43) is made of polypropylene.

6. The environment-friendly high-performance polypropylene insulated power cable as claimed in claim 2, wherein the inner diameter of the movable groove (48) is matched with the outer diameter of the movable block (47), and the movable block (47) is connected to the outer surface of the copper tape shielding layer (45) through the connecting block (49) and the connecting spring (401).