CN202615891U - External fiber composite low-voltage cable - Google Patents

Abstract

The utility model relates to an external optical fiber composite low-voltage cable, which comprises two wire cores, each wire core is wrapped with an insulating layer, and a metal shielding layer is arranged outside the insulation layer of each wire core, and the The metal shielding layer is wrapped with a cable sheath layer, and an optical fiber is arranged inside the cable sheath layer. The utility model can carry out power transmission and optical communication transmission at the same time, has good heat dissipation effect and saves cost.

Description

An external optical fiber composite low-voltage cable

technical field

The utility model relates to the field of cables, in particular to an optical fiber composite cable.

Background technique

Optical fiber is the abbreviation of optical fiber, which is a light transmission tool achieved by the principle of total reflection of light in fibers made of glass or plastic. Optical fiber was invented by Kao Kung, former president of the Chinese University of Hong Kong. The tiny fiber is encapsulated in a plastic sheath that allows it to be bent without breaking. Optical fiber communication has high speed, stability and reliability, and strong anti-interference ability, which has become an unstoppable development trend.

A low-voltage power cable refers to a wire in which one or more conductors are wrapped with a ring-shaped insulating layer, and the conductor and the insulating layer share the same axis, and then the entire cable is covered by a sheath of polyvinyl chloride or other materials for transmission. Conductor of electrical energy.

As the country vigorously promotes the strategic work of "integration of three networks", in 2010, on the basis of stepping up the construction of smart grid, the State Grid announced to cut into "integration of three networks" and started the construction of pilot project construction of electric fiber to the home to serve the country's "three networks" Network Convergence" strategy implementation. In order to meet the special requirements of urban residential quarters, solve the technologies of intelligent computer network and equipment automation in residential quarters, organically connect various subsystems of residential quarters through various conductive cables, and have functions such as power, data, video, and network control. Provide services for office, study, life and entertainment. The original power cable only has the function of transmitting electric energy, but the biggest feature of the optical fiber composite low-voltage cable is that it integrates the functions of optical fiber communication and power transmission. It integrates optical fiber and power transmission and distribution cables, avoids secondary wiring, and can effectively reduce construction costs. , network construction and other costs.

Contents of the invention

Purpose of the invention: The purpose of this utility model is to overcome the deficiencies in the prior art and provide a new type of external optical fiber composite low-voltage intelligent cable that can simultaneously perform power transmission and optical communication transmission, has a good heat dissipation effect, and saves costs.

Technical solution: In order to solve the above technical problems, the external optical fiber composite low-voltage cable described in the utility model includes two wire cores, each wire core is wrapped with an insulating layer, and the insulating layer of each wire core is A metal shielding layer is arranged on the outside, a cable sheath layer is wrapped around the metal shielding layer, and an optical fiber is arranged inside the cable sheath layer.

The optical fiber is composed of a fiber core and a fiber sheath layer.

The wire core is a copper conductor.

The optical fiber may be placed anywhere within the cable jacket.

The shape of the cable sheath layer is an "8" shape with two round ends and a concave center.

Beneficial effects: Compared with the prior art, the utility model has the remarkable advantages that: the utility model arranges the optical fiber in the cable sheath layer, which greatly improves the heat dissipation effect and has no other adverse effects on normal use.

Description of drawings

Fig. 1 is the structural representation of the utility model.

in:

1. Wire core; 2. Insulation layer; 3. Metal shielding layer; 4. Cable sheath layer; 5. Optical fiber

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Figure 1, an external optical fiber composite low-voltage cable described in the utility model belongs to the field of cables, and it includes two cores 1, each core 1 is wrapped with an insulating layer 2, and each core 1 is wrapped with an insulating layer 2. The insulating layer 2 of the wire core 1 is provided with a metal shielding layer 3. The metal shielding layer 3 is provided to prevent induction between the two wire cores 1, so as not to affect the use. The metal shielding layer 3 is wrapped with a cable The sheath layer 4 is provided with an optical fiber 5 in the cable sheath layer 4; the optical fiber 5 is composed of a core and an optical fiber sheath layer; the core 1 is a copper conductor; the optical fiber 5 can be arranged on the At any position in the cable sheath layer 4, the optical fiber 5 is arranged parallel to the core 1, and the shape of the cable sheath layer 4 is an "8" shape with two round ends and a concave center. The overall structure of the utility model is simple, and the optical fiber is installed in the cable sheath layer, which can effectively improve the heat dissipation effect. cost.

The parts not involved in the utility model are all the same as the prior art or can be realized by adopting the prior art.

Claims (5)

1. compound low-voltage cable of external optical fiber; It is characterized in that: it comprises two cores (1); Be wrapped with insulating barrier (2) at every core (1); Outside the insulating barrier (2) of said every core (1), be provided with metal screen layer (3), be provided with cable cover(ing) layer (4), in said cable cover(ing) layer (4), be provided with optical fiber (5) in said metal screen layer (3) outerwrap.

2. the compound low-voltage cable of external optical fiber according to claim 1 is characterized in that: said optical fiber (5) is made up of fibre core and fiber jacket.

3. the compound low-voltage cable of external optical fiber according to claim 1 is characterized in that: said core (1) is a copper conductor.

4. the compound low-voltage cable of external optical fiber according to claim 1 is characterized in that: said optical fiber (5) can be arranged on any position in the said cable cover(ing) layer (4).

5. the compound low-voltage cable of external optical fiber according to claim 1 is characterized in that: the umbilicate figure of eight is justified at the two that is shaped as of said cable cover(ing) layer (4).

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