CN219759236U

CN219759236U - Durable intercom system combined cable

Info

Publication number: CN219759236U
Application number: CN202320863323.8U
Authority: CN
Inventors: 黄建卫; 蔡长威; 刘书鑫; 王礼国; 丁志楠
Original assignee: Zhejiang Products Zhongda Cable Co ltd
Current assignee: Zhejiang Products Zhongda Cable Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-09-26
Anticipated expiration: 2033-04-18

Abstract

The utility model discloses a durable intercom system combined cable, which comprises three power wire cores and a drainage wire core which are twisted together to form an inner wire core body, wherein the outer part of the inner wire core body is sequentially coated with a copper-plastic composite tape wrapping layer and a silicone rubber longitudinal hole insulator, seven fan-shaped longitudinal holes are uniformly distributed in the circumferential direction of the silicone rubber longitudinal hole insulator, a flat intercom signal wire core is arranged in each fan-shaped longitudinal hole, and the outer part of the silicone rubber longitudinal hole insulator is sequentially coated with a butyl rubber inner cushion layer and a polyurethane extrusion outer sheath. The combined cable has the advantages that the power line and the intercom line are arranged in a layered mode, the cable core structure is balanced and stable, the mechanical strength is high, signal interference is not easy to occur between the power line and the intercom line, the electrical characteristic is stable, and the durability and the usability are better.

Description

Durable intercom system combined cable

Technical Field

The utility model relates to the technical field of cables, in particular to a durable intercom system combined cable.

Background

The combined cable is formed by twisting a power line, a video line, a signal line, a control line and the like into a cable according to corresponding functional requirements, and the whole cable manufactured by coating the sheath can reduce the space volume of the cable and is easy to lay and install. The multi-core combined cable formed by the intercom wires and the power wires can be used for power supply and language transmission of an intercom system in an automatic industrial production field, however, the cable of the type applied at present is generally formed by twisting all intercom wires and power wires in the same layer, the cable core structure is balanced and poor in stability, the mechanical strength is weak, the bending resistance is poor, the power wires are easy to generate signal interference on the intercom wires, the electrical characteristics are unstable, the normal work is influenced, and the durability and the usability are poor.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the durable intercom system combined cable which has balanced and stable cable core structure, high mechanical strength, stable electrical characteristics and better durability, wherein the power line and the intercom line are arranged in a layered manner, and signal interference is not easy to occur between the power line and the intercom line.

The utility model solves the technical problems through the following technical proposal.

The durable intercom system combined cable comprises an inner-layer wire core body formed by jointly twisting three power wire cores and one drainage wire core, wherein a copper-plastic composite tape wrapping layer and a silicone rubber longitudinal hole insulator are sequentially coated outside the inner-layer wire core body, seven fan-shaped longitudinal holes are uniformly distributed in the circumferential direction of the silicone rubber longitudinal hole insulator, a flat intercom signal wire core is arranged in the fan-shaped longitudinal hole, and a butyl rubber inner cushion layer and a polyurethane extrusion outer sheath are sequentially coated outside the silicone rubber longitudinal hole insulator.

Preferably, the power core comprises a power core conductor and an XLPE insulation layer.

Preferably, the power wire core conductor is formed by concentrically twisting a plurality of tinned copper monofilaments with diameters of 0.05mm to 0.3mm.

Preferably, the drain wire core includes a drain wire core conductor and an ETFE resin wrap.

Preferably, the drainage wire core conductor is twisted and compacted into a circular conductor structure by a plurality of tinned copper wire bundles with diameters of 0.05mm to 0.08 mm.

Preferably, the flat intercom signal wire core comprises two insulating coaxial wire cores which are arranged side by side to form a signal wire core body, the outer part of the signal wire core body is coated with an oval foaming polyethylene sheath layer, and the insulating coaxial wire core comprises an inner conductor and a silane grafted cross-linked low-density polyethylene insulating layer.

Preferably, the inner conductor is a circular conductor structure formed by twisting and compacting a plurality of soft copper wires with the wire diameter of 0.02mm to 0.04 mm.

Preferably, the silane grafted crosslinked low density polyethylene insulation layer has a thickness of 0.05mm to 0.3mm.

Preferably, the copper-plastic composite belt wrapping layer is a copper-plastic composite belt unidirectional spiral lapping and wrapping structure, and the copper-plastic composite belt comprises a copper foil outer layer and a PET film inner layer.

Preferably, the wrapping layer of the copper-plastic composite tape is twisted opposite to the core body of the inner layer wire.

The utility model has the beneficial effects that:

1. the three power supply wire cores, one drainage wire core and seven flat intercom signal wire cores are layered at intervals through the silicon rubber longitudinal hole insulator, the same-layer stranding into a cable is avoided, the cable core structure is more balanced and stable, the mechanical strength is high, the silicon rubber longitudinal hole insulator is favorable for improving the flexibility of the cable core, the flat intercom signal wire cores are embedded in the longitudinal holes of the silicon rubber longitudinal hole insulator, stress concentration of intercom signal wire cores is favorable for slowing down, deformation wire breakage is prevented, and durability and usability are better.

2. The power supply wire core and the intercom signal wire core are separated in layers, and are shielded through the copper-plastic composite tape wrapping layer, so that signal interference generated by the power supply wire core to the intercom signal wire core is effectively restrained, stability of electrical characteristics of the cable is guaranteed, and durability and usability of the combined cable are improved.

3. The flat intercom signal wire core has better lateral pressure resistance and extrusion resistance than the common circular section signal wire core, is not easy to deform and break wires, has stable electrical characteristics, better signal transmission quality, longer service life and better durability and usability.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the practical drawings required in the embodiments or the prior art, and it is obvious that the drawings described below are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model.

In the figure: the cable comprises a 1-power wire core, a 2-drainage wire core, a 3-copper plastic composite tape wrapping layer, a 4-silicon rubber longitudinal hole insulator, a 5-fan-shaped longitudinal hole, a 6-flat intercom signal wire core, a 7-butyl rubber inner cushion layer, an 8-polyurethane extrusion outer sheath, a 9-power wire core conductor, a 10-XLPE insulating layer, a 11-drainage wire core conductor, a 12-ETFE resin wrapping layer, a 13-insulating coaxial wire core, a 14-elliptic foaming polyethylene sheath layer, a 15-inner conductor and a 16-silane grafted crosslinked low-density polyethylene insulating layer.

Description of the embodiments

The utility model will now be described in further detail with reference to specific examples thereof in connection with the accompanying drawings.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model are clearly and completely described with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.

As shown in fig. 1, the durable intercom system combination cable of the embodiment of the utility model comprises three power source wire cores 1 and one drain wire core 2 which are twisted together to form an inner layer wire core body, in one implementation mode, the power source wire cores 1 comprise power source wire core conductors 9 and XLPE insulation layers 10, and in particular, the power source wire core conductors 9 are formed by concentrically twisting a plurality of tin-plated copper monofilaments with diameters of 0.05mm to 0.3mm. In one embodiment, the drain wire core 2 comprises a drain wire core conductor 11 and an ETFE resin wrapping layer 12, in particular, the drain wire core conductor 11 is twisted and compacted into a circular conductor structure by a plurality of tin-plated copper wire bundles with diameters of 0.05mm to 0.08 mm. The copper plastic composite tape wrapping layer 3 and the silicon rubber longitudinal hole insulator 4 are sequentially wrapped outside the inner layer wire core body, in one implementation mode, the copper plastic composite tape wrapping layer 3 is of a copper plastic composite tape unidirectional spiral lapping wrapping structure, the copper plastic composite tape comprises a copper foil outer layer and a PET film inner layer, and further, the copper plastic composite tape wrapping layer 3 is wrapped in the opposite direction to the inner layer wire core body. Seven fan-shaped vertical holes 5 are uniformly distributed in the circumferential direction of the silicon rubber vertical hole insulator 4, a flat intercom signal wire core 6 is arranged in the fan-shaped vertical holes 5, in one embodiment, the flat intercom signal wire core 6 comprises two insulating coaxial wire cores 13 which are arranged side by side to form a signal wire core body, an oval foaming polyethylene sheath layer 14 is coated outside the signal wire core body, the insulating coaxial wire cores 13 comprise an inner conductor 15 and a silane grafted crosslinked low-density polyethylene insulating layer 16, and specifically, the inner conductor 15 is formed by twisting and compacting a plurality of soft copper wires with the wire diameters of 0.02mm to 0.04mm to form a circular conductor structure. The silane grafted crosslinked low density polyethylene insulation 16 has a thickness of 0.05mm to 0.3mm. The outside of the silicon rubber longitudinal hole insulator 4 is sequentially coated with a butyl rubber inner cushion layer 7 and a polyurethane extrusion outer sheath 8.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. Durable intercom system combination cable, characterized by: including three power core (1) and a drainage core (2) transposition jointly constitute inlayer core, inlayer core outside cladding has copper plastic composite tape around covering (3) and silicone rubber longitudinal bore insulator (4) in proper order, seven fan-shaped longitudinal bore (5) have been seted up to silicone rubber longitudinal bore insulator (4) circumference equipartition, be provided with platykurtic intercom signal core (6) in fan-shaped longitudinal bore (5), the outside cladding of silicone rubber longitudinal bore insulator (4) has butyl rubber inlayer (7) and polyurethane crowded package oversheath (8) in proper order.

2. The durable intercom system combination cable of claim 1 wherein: the power supply wire core (1) comprises a power supply wire core conductor (9) and an XLPE insulating layer (10).

3. The durable intercom system combination cable of claim 2, wherein: the power wire core conductor (9) is formed by concentrically twisting a plurality of tinned copper monofilaments with diameters of 0.05mm to 0.3mm.

4. The durable intercom system combination cable of claim 1 wherein: the drainage wire core (2) comprises a drainage wire core conductor (11) and an ETFE resin wrapping layer (12).

5. The durable intercom system combination cable of claim 4 wherein: the drainage wire core conductor (11) is formed by twisting and compacting a plurality of tinned copper wire bundles with diameters of 0.05mm to 0.08mm into a circular conductor structure.

6. The durable intercom system combination cable of claim 1 wherein: the flat intercom signal wire core (6) comprises two insulating coaxial wire cores (13) which are arranged side by side to form a signal wire core body, an oval foaming polyethylene sheath layer (14) is coated outside the signal wire core body, and the insulating coaxial wire cores (13) comprise an inner conductor (15) and a silane grafted cross-linked low-density polyethylene insulating layer (16).

7. The durable intercom system combination cable of claim 6 wherein: the inner conductor (15) is formed by twisting and compacting a plurality of soft copper wires with the wire diameters of 0.02mm to 0.04mm to form a circular conductor structure.

8. The durable intercom system combination cable of claim 6 wherein: the silane grafted crosslinked low density polyethylene insulation layer (16) has a thickness of 0.05mm to 0.3mm.

9. The durable intercom system combination cable of claim 1 wherein: the copper-plastic composite belt wrapping layer (3) is of a copper-plastic composite belt unidirectional spiral lapping and wrapping structure, and comprises a copper foil outer layer and a PET film inner layer.

10. The durable intercom system combination cable of claim 9 wherein: the winding direction of the copper-plastic composite tape winding layer (3) is opposite to the winding direction of the inner layer wire core body.