KR20010088554A - Structure of optical fiber cable within power source cable - Google Patents

Abstract

PURPOSE: A structure of an optical fiber cable including a power cable is provided in which the power cable is being inserted into an empty space inside the central line of the optical fiber cable or the power cable is contained at one side of the inside of the optical fiber cable. CONSTITUTION: An optical fiber cable including a power cable has a plastic central line(1) having an empty space inside of the line, a power cable, a resin tube(11), and a resin external coating(12). The plastic central line assembles tubes in which at least one optical fiber(10) is contained. The power cable is being inserted into the inside of the central line and includes two power lines(3) and one ground line(4). The tube is attached around the central line and accommodates at least one optical fiber. The external coating protects the optical fibers contained in the tube from moist and alien substances.

Description

Structure of Fiber Optic Cable with Built-in Power Cable {STRUCTURE OF OPTICAL FIBER CABLE WITHIN POWER SOURCE CABLE}

The present invention relates to an optical fiber cable, in particular, when the power cable is mounted inside the central tension line of the optical fiber cable to illuminate a predetermined area using a plurality of optical fiber lighting devices, a plurality of optical fiber lights through a power line embedded in the optical fiber cable It relates to the structure of a fiber optic cable with a built-in power cable to supply power to the equipment.

The optical fiber is a thin fiber made of glass (quartz) or other transparent material (acrylic) for the purpose of transmitting light, and a bundle of several optical fibers is used to make a bundle, which is called an optical fiber cable.

When light shines on a transparent, thin object, or fiber, light travels along this object. Even if the fiber is bent, light continues to travel along the fiber. This is because light exiting from the optical fiber is reflected toward the center of the optical fiber at the interface between the optical fiber and the air.

The structure of an optical fiber is composed of a core, a medium for transmitting light, and a clad surrounding the core. The core is made of a transparent material having a high refractive index, while the material of the clad has a relatively low refractive index. Because of this difference, the light entering at one end is totally internally reflected and moves to the other end.

There are two types of optical fiber, depending on the material to be made: glass fiber based on quartz: G.O.F (Glass Optical Fiber) and plastic fiber based on PMMA (Poly Methyl Meth Acrylate): P.O.F (Prastic Optical Fiber).

In general, fiber optic cables are widely used for communication and lighting. In case of communication cable, it is necessary to maintain high tension by installing steel center wire at the center of cable to prevent cable sagging during long distance transmission. The fiber is supported using a central tensile line.

The optical fiber cable for illumination has a structure in which a large amount of optical fiber bundles are spirally wrapped around a central tensile line of a rubber material having an empty center. Each of the optical fiber bundles surrounds a plurality of optical fibers with a tube made of polyethylene, so that the user can branch each optical fiber bundle if necessary.

However, when using a plurality of optical fiber lighting equipment by installing a separate power line to supply power to each lighting device, the work is cumbersome and aesthetically bad problem.

The present invention has been made in order to solve the above problems, to provide a fiber optic cable for mounting a power cable in an empty space inside the center of the optical fiber cable, or a power cable mounted on one side of the optical fiber cable. Has its purpose.

1 is a cross-sectional view of an optical fiber cable with a built-in power cable in one embodiment according to the present invention;

2 is a cross-sectional view of an optical fiber cable with a built-in power cable in another embodiment according to the present invention.

<Brief description of symbols for the main parts of the drawings>

1: center liner 2: power cable

3: power line 4: ground wire

10: fiber optic 11: tube

12: jacket

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figure 1, the structure of the optical fiber cable with a built-in power cable according to the present invention is a hollow state to perform a central role to assemble a tube (11) on which at least one optical fiber 10 is mounted A power cable including a central tensile wire (1) made of plastic material and two power wires (3) and one grounding wire (4) integrally mounted inside the central tensile wire (1) for introducing power. (2) and a tube 11 made of a resin-based material which is in close contact with the periphery of the central tensile line 1 and mounts at least one optical fiber 10 coated with acrylic coating, and mounted on the tube 11. The optical fiber 10 serves to protect from ultraviolet rays, moisture, and foreign matter, and is composed of a resin-based outer skin 12 for collecting one or more tubes 11.

As an embodiment, as shown in Figure 1, the structure of the optical fiber cable with a built-in power line according to the present invention is provided with a central tension line (1) of plastic or rubber material in the center of the optical fiber cable, The joist 1 serves as a center line for aggregating the tube 11 on which one or more optical fibers 10 are mounted.

In the empty interior of the center tension line (1), two strands of power line (3) and one strand of ground line (4) for mounting power are mounted, and an acrylic coating around the center tension line (1) At least one tube 11 of resin-based material for mounting the processed one or more optical fibers 10 is collected. In this case, the surfaces of the tubes 11 may be marked in different colors for identification.

Each of the tubes 11 may be arranged in parallel to the central tension line 1 or may be arranged in a spirally twisted state about the central tension line 1.

In addition, the outer surface of the tube 11 is provided with a resin-like outer shell 12 for gathering one or more tubes 11, the outer shell 12 is an optical fiber (10) mounted on the tube (11) ) To protect against ultraviolet rays, moisture and foreign substances.

On the other hand, as another embodiment of the present invention, as shown in Figure 2, the center of the optical fiber cable is provided with a center tension line 1 of plastic or rubber material, the center tension line 1 is one or more optical fibers The center line serves to assemble the tube (11) mounted (10).

At least one tube 11 made of a resin-based material for mounting the optical fiber 10 of one or more cores coated with acrylic coating is collected around the central tensile line 1. In this case, the surfaces of the tubes 11 may be marked in different colors for identification.

Each of the tubes 11 may be arranged in parallel to the central tension line 1 or may be arranged in a spirally twisted state about the central tension line 1.

In addition, the outer surface of the tube 11 is provided with a resin-like outer shell 12 for gathering one or more tubes 11, the outer shell 12 is an optical fiber (10) mounted on the tube (11) ) To protect against ultraviolet rays, moisture and foreign substances.

Between the tube 11 mounted inside the outer shell 12, a separate power cable (2) mounted with two power cords (3) and one strand of ground wire (4) is inserted, and the power cable (2) is inserted into one side so as not to be exposed to the outside when the fiber optic cable is installed.

That is, the illumination optical fiber cable is classified into end light emitting from the end of the optical fiber cable and side light emitting from the side of the optical fiber cable according to the use, which is illustrated in FIG. In the end lighting and side lighting can be used irrespective of the other embodiment shown in FIG.

The structure of the optical fiber cable with a built-in power cable according to the present invention is to mount the power cable (2) inside the center tension line (1) of the optical fiber cable, or to mount the power cable (2) outside the center tension line (1) When using a plurality of optical fiber lighting equipment to illuminate a certain area, power cables (2) built into the optical fiber cable can be used to supply power to a plurality of optical fiber lighting equipment or devices that use power. Since there is no need for wiring, it is easy to install the optical fiber lighting device and at the same time, the clutter of the wiring due to the installation of the optical fiber cable is eliminated.

Claims (2)

In optical fiber cable, The center tension line made of plastic material that plays a center line to assemble a tube on which one or more optical fibers are mounted in an empty state, and the two power lines and one power line mounted inside the center tension line for introducing power. A power cable including a ground wire integrally, a resin-based tube adhered to the periphery of the center tensile wire, and mounted at least one optical fiber with an acrylic coating, and the optical fibers mounted on the tube are protected from ultraviolet rays, moisture, and foreign matter. The structure of the optical fiber cable with a built-in power cable, which plays a role of protecting and is composed of a resin-based sheath for gathering one or more tubes. In optical fiber cable, In order to assemble a tube in which one or more optical fibers are mounted in an empty state, a center tensile line made of plastic material, which performs a central line role, and an optical fiber at least one core which is adhered to the periphery of the center tensile line and adhered to an acrylic coating A resin-based tube, a power cable that is closely attached to the circumference of the center tensile line together with the tube, and is inserted and biased on one side so as not to be exposed to the outside when the optical fiber cable is installed, and an optical fiber and a power cable mounted on the tube. The structure of the optical fiber cable with a built-in power cable, which plays a role of protecting against ultraviolet rays, moisture, and foreign substances, and is composed of a resin-based material for gathering one or more tubes.