CN219122991U

CN219122991U - Multi-twisted multi-type split shielding communication round cable

Info

Publication number: CN219122991U
Application number: CN202223385363.0U
Authority: CN
Inventors: 杨鑫; 崔学林; 李洋; 崔洋; 周士才
Original assignee: Shanghai Nanyang Fujikura Cable Co ltd
Current assignee: Shanghai Nanyang Fujikura Cable Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-06-02
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to a compound twisted multi-type split shielding communication round cable, which comprises: a first conductor and a plurality of second conductors; a PE insulating layer surrounding the first conductor; wrapping the PE insulating layer to form a shielding layer of the communication wire core unit; wrapping the second conductor to form a PVC insulating layer of the first wire core; a semiconductive layer surrounding the first core and drain wire; wrapping the semiconductive layer to form an inner protective layer of the multi-wire group wire core; and an outer sheath wrapping the communication wire core unit and the two multi-wire group wire cores; the two first wire cores and the drainage wire are twisted into a cable; the communication wire core unit and the two multi-wire group wire cores are twisted into a cable. The structure is high in manufacturing efficiency, stable in performance, easy to install and maintain, and capable of effectively reducing the purchase cost of the cable and fully meeting the communication performance requirements of the elevator.

Description

Multi-twisted multi-type split shielding communication round cable

Technical Field

The utility model relates to a compound twisted multi-type split shielding communication round cable.

Background

In addition to the travelling cable for the elevator, a large number of fixed hoistway cables are required in the elevator hoistway to connect the elevator travelling cable to extend to the control center. Modern elevators not only require cables for control functions, but also many communication functions, but the types of communication function cables are very numerous, and at present, there is no way to concentrate communication units with multiple functions in one cable, and there is no interference between the communication units, and each of the communication units works independently.

Therefore, a twisted-pair multi-type split-shielded round communication cable is provided for the above problems.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the multi-twisted multi-type split shielding communication round cable which is high in manufacturing efficiency and stable in performance, effectively reduces the purchase cost of the cable, is easy to install and maintain, and fully meets the communication performance requirements of an elevator.

The technical scheme for achieving the purpose is as follows:

a twisted-pair multi-type split shielded round communications cable comprising:

a first conductor and a plurality of second conductors;

a PE insulating layer surrounding the first conductor;

wrapping the PE (polyethylene) insulating layer to form a shielding layer of the communication wire core unit;

wrapping the second conductor to form a PVC (polyvinyl chloride) insulating layer of the first wire core;

a semiconductive layer surrounding the first core and drain wire;

wrapping the semiconductive layer to form an inner protective layer of the multi-wire group wire core; and

an outer sheath wrapping the communication wire core unit and the two multi-wire group wire cores;

the two first wire cores and the drainage wire are twisted into a cable;

the communication wire core unit and the two multi-wire group wire cores are twisted into a cable.

Preferably, the first conductor and the second conductor are both copper wires.

Preferably, the shielding layer is made of copper wires.

Preferably, the first wire core is smaller than or equal to 15 according to the pitch diameter ratio.

Preferably, the twisting pitch of the communication wire core unit and the two multi-wire group wire cores twisted into a cable is smaller than 20.

The beneficial effects of the utility model are as follows:

1) The first conductor and the second conductor are both in copper wire structures, and are suitable for mobile use;

2) The shielding layer can be made of semi-conductive or copper wires, a drain wire is required to be compounded in the semi-conductive shielding layer for grounding, the shielding braiding density of the copper wires is up to 90%, and the shielding performance can be enhanced by higher coverage rate;

3) Twisting the communication wire core unit and the two multi-wire group wire cores into a cable by using a back twisting device, wherein the twisting pitch is smaller than 20, and the overall flexibility is improved;

4) The structure can provide the multi-purpose selectivity of communication function, perfect the overall performance of the cable, and can improve the use convenience by combining the communication wire core units with different functions, thereby being convenient to increase various different communication requirements.

Drawings

Fig. 1 is a schematic diagram of the present utility model.

In the figure: 1. a first conductor; 2. a PE insulating layer; 3. a shielding layer; 4. a second conductor; 5. a PVC insulating layer; 6. a drain line; 7. a semiconductive layer; 8. an inner protective layer; 9. an outer sheath.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying positive importance.

The utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1, the compound twisted multi-type split shielding communication round cable comprises a first conductor 1 and a second conductor 4, wherein the first conductor and the second conductor are both in a copper wire structure and are suitable for mobile use; the PE insulating layer 2 wraps the first conductor 1, the shielding layer 3 wraps the PE insulating layer 2 to form a communication wire core unit, the shielding layer 3 can be made of copper wires, the shielding braiding density of the copper wires is up to 90%, and the shielding performance can be enhanced due to higher coverage rate; the PVC insulating layer 5 wraps the second conductor 4 to form a first wire core, and the first wire core is smaller than or equal to 15 in section diameter ratio; the PE insulating layer and the PVC insulating layer are made of high-density materials, such as high-density polyethylene, so that communication attenuation performance is effectively reduced; the two first wire cores and the drainage wire 6 are twisted into a cable; the semiconductive layer 7 simultaneously wraps the first wire core and the drain wire 6; the inner protective layer 8 wraps the semiconductive layer 7 to form a multi-wire group wire core; twisting the communication wire core unit and the two multi-wire group wire cores into a cable by using a back twisting device, wherein the twisting pitch is smaller than 20, and the overall flexibility is improved; the outer sheath 9 simultaneously wraps the communication wire core unit and the two multi-wire-group wire cores, and the outer sheath 9 is made of high-flame-retardant oil-resistant materials, such as polyvinyl chloride, has bending resistance and cracking resistance, and can adapt to various severe environments.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. A twisted-pair multi-type split shielded round communications cable, comprising:

a first conductor (1) and a plurality of second conductors (4);

a PE insulating layer (2) wrapping the first conductor (1);

wrapping the PE insulating layer (2) to form a shielding layer (3) of the communication wire core unit;

the second conductor (4) is wrapped to form a PVC insulating layer (5) of the first wire core;

a semiconductive layer (7) surrounding the first wire core and the drain wire (6);

wrapping the semi-conductive layer (7) to form an inner protection layer (8) of the multi-wire group wire core; and

an outer sheath (9) wrapping the communication wire core unit and the two multi-wire group wire cores;

wherein, the two first wire cores and the drainage wire (6) are stranded into a cable;

2. A twisted-pair multi-type split shielded round communication cable according to claim 1, characterized in that both the first conductor (1) and the second conductor (4) are copper wires.

3. A twisted-pair multi-type split shielded round communication cable according to claim 1, wherein the shielding layer (3) is made of copper wire.

4. The multi-twisted multi-type split shielded round communication cable according to claim 1, wherein the first core has a pitch diameter ratio of 15 or less.

5. A multi-stranded multi-type split shielded communication round cable according to claim 1, wherein the twist pitch of the communication core unit and the two multi-wire set cores stranded into a cable is less than 20.