CN214410858U

CN214410858U - Optical fiber composite low-voltage cable

Info

Publication number: CN214410858U
Application number: CN202120199703.7U
Authority: CN
Inventors: 张涛; 朱健; 张延华; 刘元雪
Original assignee: Qingdao Hanhe Cable Co ltd; Qingdao Hanhe Marine Engineering Equipment Co ltd
Current assignee: Qingdao Hanhe Cable Co ltd; Qingdao Hanhe Marine Engineering Equipment Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-10-15
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses an optical fiber composite low-voltage cable, including the inside hollow oversheath, be provided with first division board, second division board, main copper line and optic fibre unit in the inside hollow structure of oversheath, first division board and second division board rigid coupling, form a plurality of independent appearance chamber between first division board and second division board and the oversheath, set up main copper line in the independent appearance chamber that is close to the oversheath, set up the optic fibre unit in the independent appearance chamber that is close to oversheath centre of a circle position department, the optic fibre unit includes a plurality of optic fibres and wraps up the insulating layer in the optic fibre outside, still be provided with the haulage rope in the optic fibre unit, a plurality of optic fibres encircle the haulage rope setting; according to the scheme, the reinforcing layer and the reinforcing ribs are arranged, so that the integral hardness of the cable is improved; the arranged partition plate can separate the conductive copper wire and the optical fiber on one hand, and on the other hand, the whole cable is supported in the cable; the water-blocking layer that sets up can effectively avoid the cable infiltration, reduces the fault rate of cable.

Description

Optical fiber composite low-voltage cable

Technical Field

The utility model relates to a wire and cable technical field, concretely relates to compound low tension cable of optic fibre.

Background

With the demand of the development of the current society, the cable with single function can not meet the demands of residents, and with the continuous improvement of the social informatization degree, the intelligent equipment is gradually developed and grown, so that the cable is required to have good power transmission capacity and be supplemented with more information. The optical fiber composite low-voltage cable is a cable product which is formed by compounding optical unit signals and insulated wire cores and has the capabilities of electric energy transmission and optical communication, and is suitable for electric power engineering with rated voltage of 1KV and below; at present, in the laying process of the existing optical fiber composite low-voltage cable, the existing optical fiber composite low-voltage cable often meets the application scene of a limited space or an irregular space, which puts a high requirement on the flattening resistance of the optical fiber composite low-voltage cable, and the service performance and the service life of the cable are undoubtedly influenced because a large stress is remained in the optical fiber composite low-voltage cable after the optical fiber composite low-voltage cable is laid; in addition, the optical fiber composite low-voltage cable also needs to have excellent waterproof and fireproof performance, and the short circuit or open fire of the cable caused by water seepage is avoided when the optical fiber composite low-voltage cable is used.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of poor compression resistance, easy breakage, unsatisfactory waterproof effect and the like of the optical fiber composite low-voltage cable in the prior art, and provides the optical fiber composite low-voltage cable, which can well improve the hardness of the whole cable by arranging the reinforcing layer and the reinforcing ribs, and can separate the conductive copper wires and the optical fibers by arranging the partition plates so as not to influence each other and also play a role of supporting the whole cable in the cable; the water-blocking layer who sets up can effectively avoid the cable infiltration, reduces the damage of cable.

The technical scheme of the utility model is that:

the utility model provides a compound low tension cable of optic fibre, its characterized in that, includes inside hollow oversheath, be provided with first division board, second division board, main copper line and optical fiber unit in the inside hollow structure of oversheath, first division board and second division board rigid coupling, form a plurality of between first division board and second division board and the oversheath and independently hold the chamber, be close to set up in the independent chamber of oversheath main copper line is close to set up in the independent chamber of oversheath centre of a circle position department the optical fiber unit, the optical fiber unit includes that a plurality of optic fibre and parcel set up the outside insulating layer of optic fibre, still be provided with the haulage rope that is used for guiding optic fibre in the optical fiber unit, a plurality of optical fibre encircles the haulage rope sets up.

Furthermore, the section of the first partition plate is in a five-fork shape, included angles among the five fork plates are 72 degrees, the second partition plate is fixedly connected between every two adjacent fork plates, and the second partition plate is in a T-shaped structure; three independent cavities are formed among each second separation plate, two adjacent fork plates and the outer sheath.

Furthermore, only one optical fiber unit or one main copper wire is arranged in each independent cavity.

Furthermore, the outer sheath comprises a reinforcing layer, a water-blocking layer and a protective layer which are sequentially arranged from inside to outside.

Furthermore, be provided with a plurality of auxiliary copper line and strengthening rib in the enhancement layer, the quantity of auxiliary copper line and strengthening rib is unanimous, auxiliary copper line and strengthening rib interval set up.

Further, the protective layer is made of halogen-free flame-retardant polyolefin; the water-blocking layer is a water-blocking tape.

Furthermore, ceramic fibers are filled in a cavity gap between the wire core group and the outer sheath.

The utility model has the advantages that:

(1) the utility model provides a pair of compound low tension cable of optic fibre, the enhancement layer and the intraformational strengthening rib of enhancement through setting up make the whole hardness of cable obtain promoting to still be provided with the auxiliary copper line in the enhancement layer for electric power partial pressure is shunted, under the unable transmission electric power's of main copper line trouble condition, the auxiliary copper line can replace it to carry out power transmission.

(2) The utility model discloses a set up the partition plate structure, separate electrically conductive copper line and optic fibre, avoid it to produce the influence each other, simultaneously, also play the effect of support to whole cable from the inside of cable.

(3) The utility model discloses set up the water blocking layer inside the cable, can effectively avoid the cable infiltration, reduce the fault rate of cable.

Drawings

Fig. 1 is a schematic view of the overall structure of the optical fiber composite cable provided by the present invention;

fig. 2 is a schematic structural diagram of an optical fiber unit provided by the present invention;

in the figure, 1, a protective layer; 2. a water resistant layer; 3. an auxiliary copper wire; 4. reinforcing ribs; 5. a main copper wire; 6. a first partition plate; 7. a second partition plate; 8. an insulating sleeve; 9. an optical fiber; 10. and (6) pulling the rope.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects of the present invention to be solved clearer, the present invention will be further described with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

It is to be understood that the terms "intermediate" and "spaced" and "centered" and the like are used in an orientation or positional relationship relative to that shown in the drawings and are used merely for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered as limiting the present invention.

As shown in fig. 1, the utility model relates to an optical fiber composite low-voltage cable, including the inside oversheath that is hollow structure, wherein, in the inside hollow structure of outer sheath, be provided with first division board 6, second division board 7, main copper line 5 and optical fiber unit, first division board 6 and second division board 7 looks rigid coupling, connect through first division board 6 and second division board 7, separate the inside hollow structure of oversheath into a plurality of independent appearance chambeies, in the independent appearance intracavity that is close to the oversheath, set up main copper line 5, set up the optical fiber unit in the independent appearance intracavity that is close to the oversheath centre of a circle, through the independent appearance chamber that separates, make main copper line 5 and optical fiber unit independently work, avoid its mutual influence; the optical fiber unit comprises a plurality of optical fibers 9 and an insulating layer 8, the insulating layer 8 is wrapped outside the optical fibers 9, and a traction rope 10 is further arranged in the optical fiber unit and used for playing a role in traction guiding on the optical fibers 9, so that the optical fibers are uniformly and stably arranged, and the optical fibers 9 are prevented from being displaced inside the insulating layer 8.

Further, as shown in fig. 2, 5 optical fibers 9 are disposed in the optical fiber unit, the pulling rope 10 is disposed at a central position inside the insulating layer 8, the optical fibers 9 are disposed around the pulling rope 10, and a certain gap is left between two adjacent optical fibers 9; by providing the insulating layer 8, the main copper wire 5 in the cable does not affect the optical fiber 9 in the optical fiber unit, and the optical fiber 9 can transmit information.

Further, in the present embodiment, the cross section of the first partition plate 6 is in a five-fork shape, the included angles between the five fork plates are all 72 °, the first partition plate 6 uniformly partitions the inner hollow structure of the outer sheath into five large cavities with the same size, and two main copper wires 5 and one optical fiber unit are arranged in each region; a second partition plate 7 in a T-shaped structure is fixedly connected between every two adjacent fork plates, and each large containing cavity is further divided into three independent containing cavities by the second partition plate 7, so that the two main copper wires 5 and the optical fiber unit are separated to prevent mutual influence between the two main copper wires and the optical fiber unit; meanwhile, the arranged first partition plate 6 and the second partition plate 7 play a role in supporting the whole cable inside the cable, so that the cable is prevented from deforming.

It should be noted that, as shown in fig. 1, in the present embodiment, the outer sheath includes a reinforcing layer, a water blocking layer 2 and a protective layer 1, which are sequentially arranged from inside to outside; wherein, a plurality of reinforcing ribs 4 and auxiliary copper wires 3 which are in the same number with the reinforcing ribs 4 are arranged in the reinforcing layer, and the auxiliary copper wires 3 and the reinforcing ribs 4 are arranged at intervals; the arranged auxiliary copper wire 3 has the functions of shunting and dividing the electric power to the main copper wire 5, and meanwhile, when the main copper wire 5 goes wrong, the auxiliary copper wire 3 can continue to work; the reinforcing ribs 4 arranged on the cable have the effects of resisting compression and improving strength, and the cable is prevented from deforming or breaking when being extruded by external force.

Furthermore, in the present embodiment, the material of the protective layer 1 is a halogen-free flame retardant polyolefin material, which has good wear resistance and flame retardancy, and effectively prolongs the service life of the cable; the water-blocking layer 2 consists of a water-blocking tape, plays a role in isolating water for a wire core assembly in the cable, and prevents the wire core assembly from short circuit and influencing normal work; the ceramic fiber material is filled in the gap between the wire core group and the outer sheath, so that the wire core group can be fixed, and the ceramic fiber material has the advantages of light weight, good heat insulation performance, good thermal stability, good chemical stability and easiness in processing.

The foregoing description of the specific embodiments of the present invention has been presented for the purposes of illustration and description and is not intended to limit the invention to the precise form disclosed, and it is apparent that numerous changes and modifications may be made in the foregoing description, the examples having been selected and described to illustrate the specific principles and practical application of the invention, to thereby enable one skilled in the art to make and use the invention in various embodiments and with various modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. An optical fiber composite low-voltage cable is characterized by comprising an outer sheath with a hollow inner part, wherein a first partition plate (6), a second partition plate (7), a main copper wire (5) and an optical fiber unit are arranged in the hollow inner structure of the outer sheath, the first partition plate (6) is fixedly connected with the second partition plate (7), a plurality of independent containing cavities are formed between the first partition plate (6) and the outer sheath and between the second partition plate (7) and the outer sheath, the main copper wire (5) is arranged in the independent containing cavity close to the inner side wall of the outer sheath, and the optical fiber unit is arranged in the independent containing cavity close to the center of the outer sheath; the optical fiber unit comprises a plurality of optical fibers (9) and an insulating layer (8) arranged outside the optical fibers (9) in a wrapping mode, a traction rope (10) used for guiding the optical fibers (9) is further arranged in the optical fiber unit, and the optical fibers (9) are arranged in a surrounding mode through the traction rope (10).

2. The cable according to claim 1, wherein the cross section of the first splitter plate (6) is five-fork shaped, the included angle between the five fork plates is 72 degrees, the second splitter plate (7) is fixedly connected between every two adjacent fork plates, and the second splitter plate (7) is in a T-shaped structure; three independent cavities are formed among each second partition plate (7), two adjacent fork plates and the outer sheath.

3. A cable according to claim 2, wherein only one said optical fibre unit or one said main copper wire (5) is provided in each said separate housing.

4. A cable according to claim 1, characterized in that said outer sheath comprises, in succession from the inside towards the outside, a reinforcing layer, a water-resistant layer (2) and a protective layer (1).

5. A cable according to claim 4, characterized in that a plurality of auxiliary copper wires (3) and reinforcing ribs (4) are arranged in the reinforcing layer, the number of the auxiliary copper wires (3) and the number of the reinforcing ribs (4) are the same, and the auxiliary copper wires (3) and the reinforcing ribs (4) are arranged at intervals.

6. A cable according to claim 4, characterized in that the protective layer (1) is made of halogen-free flame-retardant polyolefin; the water-blocking layer (2) is a water-blocking tape.