RU206375U1 - Hybrid optoelectric cable - Google Patents

Abstract

The utility model relates to cable technology. The hybrid optoelectric cable contains a single-mode optical fiber in the center, around which ring-shaped layers are located: metal armor, a supply conductor, a dielectric, a ground conductor and an outer polymer sheath, and the conductive conductors are made in the form of a copper braid. The outer polymer sheath of the hybrid cable can be made of polyvinyl chloride. The technical result is to increase the flexibility and strength of the hybrid optoelectric cable while reducing its diameter.

Description

Technical field to which the utility model belongs

The utility model relates to cable technology and can be used to transmit signals and power in automatic cable winches.

State of the art

Known optical cable (RF patent for utility model No. 88820, publ. 20.11.2009), containing at least one optical fiber with an acrylate coating, a buffer coating, a reinforcing coating of aramid filaments and an outer sheath, and the buffer coating is made of thermostable polyamide resin with fire-fighting fillers, and the outer shell is made of resin based on polybutylene terephthalate with fire-fighting fillers.

The disadvantage of this cable is the inability to use it for power transmission due to the lack of conductive conductors.

Known electro-optic cable (RF patent for utility model No. 175197, publ. 28.11.2017), containing a conductive core, a reinforcing element and a fiber-optic module placed in an outer insulating sheath, containing a protective sheath containing optical fibers filled with a hydrophobic filler, and the fiber-optic module has a core made of twisted copper conductors, adjacent to the protective shell, in which the optical fibers filled with a hydrophobic filler are placed, while the outer insulating shell is made in the form of an insulating shell of a reinforcing element, an insulating shell of a fiber-optic module connected to an insulating shell the reinforcing element by the first isthmus, and the insulating sheath of the conductive core, which is connected to the insulating sheath of the fiber-optic module by the second isthmus made in the same plane with the first isthmus.

Also known is an electro-optical cable (RF patent for utility model No. 190410, publ. 07/01/2019), covered with an outer protective sheath and containing two insulated conductive conductors, as well as a fiber-optic module with optical fibers, laid between insulated conductive conductors, and two power an element in the form of rods made of strong insulating material installed along the fiber-optic module, made in the form of optical fibers enclosed in a reinforcing modular tube, placed in a hydrophobic, and an intermediate insulating shell, which encloses the fiber-optic module and rods made of durable insulating material, while rods made of strong insulating material, installed close to the fiber-optic module, and insulated conductive cores, installed close to the outer surface of the intermediate insulating shell, are placed alternately at equal central angles relative to the longitudinal axis of the electro-optical cable.

Known electro-optic cable (RF patent for utility model No. 196630, publ. 03/11/2020), containing insulated conductive cores placed in an outer protective sheath, as well as a fiber-optic module with optical fibers in a hydrophobe placed in the center of the cable, covered with a water-blocking sheath made made of flexible dielectric reinforcing water-blocking threads, or instead of a module in the center of the structure, there is a drop-cable containing optical fibers in a hydrophobe and fiberglass rods under a common sheath.

The main disadvantages of the proposed solutions are insufficient flexibility and strength, as well as a relatively large diameter. Such disadvantages of the known hybrid cables are due to their constructive implementation of different cores, passing independently of each other, and united by a common sheath.

Disclosure of a utility model

The technical result achieved when implementing the claimed technical solution is to increase the flexibility and strength of the hybrid optoelectric cable while reducing its diameter.

The specified technical result is achieved in that the hybrid optoelectric cable contains in the center a single-mode optical fiber around which ring-shaped layers are located: a metal armor, a supply conductor, a dielectric, a ground conductor and an external polymer sheath, and the conductive conductors are made in the form of a copper braid.

The outer polymer jacket of the hybrid cable can be made of polyvinyl chloride.

Brief Description of Drawings

The figure shows a diagram of a hybrid optoelectric cable.

In the figure, the following designations are adopted: 1 - single-mode optical fiber, 2 - metal armor, 3 - supply conductive core, 4 - dielectric, 5 - grounding conductive core, 6 - polymer sheath.

Implementation of the utility model

A hybrid optoelectric cable (see Fig.) Contains in the center a single-mode optical fiber 1, around which ring-shaped layers are located: a metal armor 2, a supply conductor 3, a dielectric 4, a ground conductor 5 and an outer polymer sheath 6. The design of a hybrid optoelectric cable contains two copper conductors made in the form of a braid: a copper shield braiding the metal armor 2 of an optical fiber 1 - a supply conductive core 3, and an external copper shield - a grounding conductive core 5.

The outer polymer sheath 5 of the hybrid cable can be made of polyvinyl chloride (PVC).

The claimed device is used as follows.

The proposed hybrid optoelectric cable is used for the simultaneous transmission of data over optical fiber and electrical energy over insulated copper conductors.

Examples of implementation.

An optoelectric cable of the declared design was manufactured. Its technical characteristics: maximum transmitted current - 3.5 A, maximum operating load - 100 N, outer diameter - 4 mm. The cable is used in automatic cable winches, where it is wound on a drum with a diameter of slightly more than 200 mm and during the operation of the winch it is in constant motion (unwinding and reeling), performing the function of a winch under load and at the same time transmitting information signals and power supply without interference.

The advantages of the proposed technical solution:

the cable is ultra-thin and flexible, due to its coaxial design, as well as the execution of the cores in the form of braids;

heavy-duty cable, due to the use of metal armor, ring-shaped structure and execution of the cores in the form of braids;

hybridity: used for signaling and power supply;

simplicity of design (ring) allows the cable to be produced in the shortest possible time using a small amount of special equipment;

the design of the cable allows the signal to be transmitted over the optical fiber without loss during the dynamic load on the cable (unwinding / winding under load).

Comparative analysis of the claimed utility model showed that the set of essential features of the claimed device is not known from the prior art and, therefore, meets the "Novelty" patentability condition.

The above information confirms the possibility of using the claimed device for transmitting signals and power in automatic cable winches, and therefore meets the requirement of patentability "Industrial applicability".

Claims (2)

1. A hybrid optoelectric cable containing a single-mode optical fiber in the center, around which ring-shaped layers are located: metal armor, a supply conductor, a dielectric, a ground conductor and an outer polymer sheath, and the conductors are made in the form of a copper braid. 2. Cable according to claim 1, characterized in that the outer polymer sheath is made of polyvinyl chloride.

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