CN115762896B - Indoor photoelectric device for 5G communication composite cable and preparation method thereof - Google Patents
Indoor photoelectric device for 5G communication composite cable and preparation method thereof Download PDFInfo
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- CN115762896B CN115762896B CN202211467111.4A CN202211467111A CN115762896B CN 115762896 B CN115762896 B CN 115762896B CN 202211467111 A CN202211467111 A CN 202211467111A CN 115762896 B CN115762896 B CN 115762896B
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Abstract
The invention discloses an indoor photoelectric composite cable for 5G communication, which comprises a composite cable protection layer, and an optical unit and an electrical unit which are arranged in the composite cable protection layer, wherein the composite cable protection layer is provided with a plurality of tearing units, the tearing units comprise oblique tearing cracks which are formed on the composite cable protection layer by the electrical unit and form tearing structures on the composite cable protection layer, and straight tearing cracks which are formed on the composite cable protection layer by the optical unit and form tearing structures on the composite cable protection layer; the indoor photoelectric composite cable for 5G communication and the preparation method thereof have higher flexibility, and can lead the optical unit and the electric unit to be independently torn.
Description
Technical Field
The invention relates to an indoor photoelectric composite cable for 5G communication and a preparation method thereof.
Background
The photoelectric composite cable is suitable for a transmission line in a broadband access network system, is a novel access mode, integrates optical fibers and power transmission copper wires, can solve the problems of broadband access, equipment power consumption and signal transmission, and is generally composed of a cable core and a protective layer in a layer-twisted structure, wherein the protective layer comprises a sheath and an outer protective layer.
An existing photoelectric composite cable, such as a 4G/5G photoelectric composite cable for a small base station and a preparation process thereof, disclosed in China patent application No. 202010026238.7, comprises an optical unit, an electric unit and a sheath layer, wherein the two electric units are arranged side by side in parallel, the optical unit is arranged in the middle between the two electric units, and the outer parts of the electric unit and the optical unit are provided with the sheath layer; the utility model provides a cable structure, it includes two core tight-jacketed optical fibers, aramid yarn and metal armor hose, and the outside of two core tight-jacketed optical fibers is through setting up the aramid yarn and is carried out tensile protection, two core tight-jacketed optical fibers are armored through metal armor hose, and the outside of two core tight-jacketed optical fibers is equipped with tight jacket layer ", and" the upper and lower face of jacket layer is equipped with electric unit cable stripping groove and optical unit cable opening groove respectively, electric unit cable stripping groove corresponds the electric unit, optical unit cable opening groove corresponds the optical unit ", has adopted the design of electric unit cable stripping groove and optical unit cable opening groove to tearing structure for photoelectric composite cable in this technique, can see from this technique that it once tear out the optical unit, can inevitably lead to tearing of electric unit, especially to the composite cable structure of a plurality of optical units and electric unit, and it has the problem that the flexibility is not enough.
Another example is a photoelectric composite cable and a photoelectric system according to the chinese invention of application No. 202110419775.2, wherein a composite cable protection body, a first tearing unit, a second tearing unit, a first optical fiber, an optical unit reinforcement, a first conductor and a second conductor are disclosed; the first tearing unit and the second tearing unit are used for separating the composite cable protection body along a first tearing surface; the first optical fiber, the optical unit reinforcement, the first conductor, and the second conductor extend in an axial direction of the optical-electrical composite cable inside the composite cable protector; the first optical fiber and the optical unit reinforcing member are located on one side of the first tearing surface, the first conductor and the second conductor are located on the other side of the first tearing surface, and the first conductor and the second conductor are separated from each other.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an indoor photoelectric composite cable for 5G communication, which has higher flexibility and can enable an optical unit and an electrical unit to be independently torn, and a preparation method thereof.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides an indoor photoelectricity composite cable for 5G communication, includes the composite cable protective layer, and sets up optical unit and the electric unit in the composite cable protective layer, has a plurality of tearing units on this composite cable protective layer, should tear the unit including being the oblique form on the composite cable protective layer, make the electric unit form tear the oblique tearing of structure off on the composite cable protective layer, and be straight form on the composite cable protective layer, make the optical unit form the straight tearing of tearing the structure on the composite cable protective layer.
Preferably, the electrical unit surrounds the light unit, the light unit being located between at least two electrical units.
Preferably, the oblique tearing port comprises an external oblique port arranged at the surface layer of the composite cable protective layer and an internal oblique port arranged inside the composite cable protective layer.
Preferably, the external bezel is disposed on an abutting side of the electrical unit, and the at least two external bezel form a diagonal tear line at the electrical unit.
Preferably, the internal bezel is disposed adjacent to the oblique tear line and the oblique tear line passing through the light unit is formed by at least two internal bezel.
Preferably, the straight tearing opening is arranged at the surface layer of the composite cable protection layer and is abutted with the optical unit, and forms a straight tear line through the light unit.
Preferably, the light units are provided with more than one, and each light unit is at least abutted with one oblique tearing opening or straight tearing opening, the electric units are provided with more than one, and each electric unit is at least abutted with two oblique tearing openings.
Preferably, the composite cable protection layer comprises the following raw materials: low density polyethylene, medium density polyethylene, linear low density polyethylene, calcium carbonate, talcum powder, silicon dioxide, silane coupling agent and fatty acid lubricant, the low density polyethylene and the linear low density polyethylene have a melt index of 0.5 to 1.5.
The invention provides a preparation method of an indoor photoelectric composite cable for 5G communication, which comprises the following steps:
taking low-density polyethylene and linear low-density polyethylene for melt blending, and then adding medium-density polyethylene for secondary melt blending;
adding calcium carbonate, talcum powder, silicon dioxide, a silane coupling agent and a fatty acid lubricant into the melt blending species, and uniformly stirring to obtain a melt;
taking a first mould, placing the first mould into a light unit, and then pouring molten materials into the first mould to form a composite cable protective layer with the light unit;
and taking the second die, loading a release piece at the position of an inner bevel opening of the composite cable protective layer with the optical unit, and pouring molten materials to form the composite cable protective layer with the optical unit and the electrical unit.
Preferably, the shape of the first die is matched with the shape of the oblique tearing line, the first die is provided with an inner notch matched with the inner oblique opening, and the second die wraps the first die and is provided with an outer notch matched with the straight tearing opening.
The beneficial effects of the invention are as follows:
through adopting the structure that makes the electric unit form tearing off the structure on compound cable protective layer to tear the breach and make the optical unit form tearing off the structure directly tearing off the breach on compound cable protective layer for optical unit and electric unit on this compound cable protective layer can directly tear off and tear, and do not influence other optical units and electric unit after electric unit or optical unit tear off, compare in traditional tearing off directly tearing off/tearing off the structure, have adopted tearing off to one side tearing off the structure and have improved its flexibility.
Drawings
FIG. 1 is a schematic structural diagram of an indoor photoelectric composite cable for 5G communication according to the present invention;
FIG. 2 is a schematic diagram of another embodiment of an indoor photoelectric composite cable for 5G communication according to the present invention;
FIG. 3 is a schematic structural diagram of another embodiment of an indoor photoelectric composite cable for 5G communication according to the present invention;
FIG. 4 is a first mold structure diagram of the indoor photoelectric composite cable for 5G communication of the present invention;
FIG. 5 is a second mold structure diagram of the indoor photoelectric composite cable for 5G communication of the present invention;
fig. 6 is a combined structure diagram of a first mold and a second mold of the indoor photoelectric composite cable for 5G communication according to the present invention.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the invention will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The indoor photoelectric composite cable for 5G communication provided in this embodiment includes a composite cable protective layer 1, and an optical unit 2 and an electrical unit 3 disposed in the composite cable protective layer 1, where the composite cable protective layer 1 has a plurality of tearing units 4, the tearing units 4 include an oblique tearing opening 41 that is oblique on the composite cable protective layer 1 and makes the electrical unit 3 form a tearing structure on the composite cable protective layer 1, and a straight tearing opening 42 that is straight on the composite cable protective layer 1 and makes the optical unit 2 form a tearing structure on the composite cable protective layer 1, the oblique tearing opening 41 may adopt a straight V-shaped opening, or may adopt an oblique V-shaped opening, or adopt an oblique V-shaped opening, generally speaking, based on different types of photoelectric composite cables, as in fig. 1, the oblique tearing opening 41 is simultaneously used for tearing of two electrical units 3, so that in fig. 2, the oblique tearing opening 41 is only used for tearing of one electrical unit 3, so that in fig. 2, an oblique V-shaped opening is adopted.
The optical units 3 surround the optical units 2, the optical units 2 are located between at least two optical units 3, the optical-electrical composite cable of the scheme is mainly used for combining and tearing off a plurality of optical cables and electric cables, preferably, the optical-electrical composite cable structure formed by at least four pairs of optical units 2 and electrical units 3 is a composite cable structure formed by combining four pairs of optical units 2 and electrical units 3 as shown in fig. 2 and 3
Referring to fig. 1-2, the oblique tear opening 41 includes an external oblique opening 411 disposed at the surface layer of the composite cable protective layer 1, and an internal oblique opening 412 disposed inside the composite cable protective layer 1, wherein the external oblique opening 411 is disposed on the adjacent side of the electrical unit 3, and at least two external oblique openings 411 form an oblique tear line at the electrical unit 3, the internal oblique opening 412 is disposed adjacent to the oblique tear line, and at least two internal oblique openings 412 form an oblique tear line passing through the optical unit 2, and the external oblique opening 411 is used for performing independent tearing of the electrical unit 3, and the tearing is performed depending on the position of the oblique tear line, and the oblique tear line may be a straight line or an arc.
The straight tearing slit 42 is disposed at the surface layer of the composite cable protection layer 1 and abuts against the optical unit 2, and forms a straight tearing line passing through the optical unit 2, and the internal bevel 412 is disposed for tearing the optical unit 2 after the electrical unit 3 on the side is torn away, the tearing direction is opposite to the position direction of the optical unit 2, and the tearing opening passes through the oblique tearing line position.
Referring to fig. 3, the optical-electrical composite cable shown in fig. 3 is taken as an example for describing the composite cable structure formed by combining four pairs of optical units 2 and electrical units 3, and has an inner tearing opening, wherein the inner tearing opening is located at the center position and is used for matching with the tearing of the optical units 2, the optical-electrical composite cable has the advantages that an inclined V-shaped split is adopted to tear the electrical units 3, a straight V-shaped split is adopted to tear the optical units 2, and compared with the previous optical-electrical composite cable, the optical-electrical composite cable adopts an outer tearing structure and can independently tear the optical units 2.
The light units 2 are provided with more than one, and each light unit 2 is at least abutted with an oblique tearing opening 41 or a straight tearing opening 42, the electric units 3 are provided with more than one, and each electric unit 3 is at least abutted with two oblique tearing openings 41, and generally, a collocation design of at least four electric units 3 and four light units 2 is preferably adopted.
In this embodiment, the composite cable protection layer 1 includes the following raw materials in parts by weight: the composite cable protection layer 1 prepared from the components in proportion has higher tearing easiness compared with the materials for cutting and tearing directly, and is characterized in that the materials for cutting the oblique tearing part are needed to be more conveniently cut off in comparison with the materials for cutting directly, so that the embodiment adopts the base resin consisting of the low-density polyethylene and the linear low-density polyethylene, and the medium-density polyethylene is added to improve the tearing easiness, and the composite cable protection layer 1 is easier to cut and tear.
In an alternative implementation manner, the composite cable protective layer 1 comprises the following raw materials in parts by weight: 30 parts of low-density polyethylene, 20 parts of medium-density polyethylene, 30 parts of linear low-density polyethylene, 5 parts of calcium carbonate, 3 parts of talcum powder, 1.5 parts of silicon dioxide, 0.5 part of silane coupling agent and 4 parts of fatty acid lubricant, wherein the low-density polyethylene and the linear low-density polyethylene have a melt index of 1.5, and it is noted that, considering that the scheme adopts a diagonal tearing design and the tearing line comprises a straight tearing line and a curved tearing line, compared with the materials for cutting straight tearing, the materials for cutting off the diagonal tearing part are required to be more convenient, so in the embodiment, the base resin consisting of the low-density polyethylene and the linear low-density polyethylene is adopted, the medium-density polyethylene is added to improve the tearing property of the base resin, the cutting and tearing are easier to be carried out, and the composite cable protection layer 1 prepared by adopting the proportion of the components has slightly reduced tearing property and higher strength.
It should be noted that, the composite cable protection layer 1 made of the above raw materials is made of halogen-free and smokeless polyethylene materials, and the currently adopted sheath is mostly a low-smoke and halogen-free sheath, namely, contains halogen elements such as fluorine (F), chlorine (Cl), bromine (Br) and the like, and is used indoors in the scheme, so that flame-retardant, halogen-free and smokeless components are selected, smoke and toxic gas generated after cable combustion in a fire accident can be greatly reduced, and more precious escape time is striven for personnel in the case of fire so as to ensure the use safety and reliability.
The preparation method of the indoor photoelectric composite cable for 5G communication comprises the following steps:
taking low-density polyethylene and linear low-density polyethylene for melt blending, and then adding medium-density polyethylene for secondary melt blending;
adding calcium carbonate, talcum powder, silicon dioxide, a silane coupling agent and a fatty acid lubricant into the melt blending species, and uniformly stirring to obtain a melt;
taking a first mould, placing the first mould into the optical unit 2, and pouring molten materials into the first mould to form the composite cable protective layer 1 with the optical unit 2;
taking the second mould, loading a release piece at the position of an inner bevel 412 of the composite cable protection layer 1 with the optical unit 2, and pouring molten materials to form the composite cable protection layer 1 with the optical unit 2 and the electric unit 3.
The first mold is shaped to match the shape of the diagonal tear line and has an inner notch location that mates with the inner diagonal slot 412, and the second mold wraps the first mold and has an outer notch location that mates with the straight tear 42.
It should be noted that, owing to adopted the dual processing framework of first mould and second mould, can make the combination position between this first mould and the second mould tear away more easily, namely more make things convenient for this photoelectricity composite cable to tear away along oblique tear line.
The shape of the first mold is shown in fig. 4, the shape of the second mold is shown in fig. 5, and as can be seen from fig. 4-5, the first mold and the second mold match the shape of the photovoltaic composite cable in fig. 2.
In an alternative implementation, the first die may be a first extrusion port of the extruder, and the second die may be a second extrusion port connected behind the first extrusion port, as shown in fig. 6, where the first die and the second die are combined and then installed at the outlet of the extruder, and it should be noted that the ejection member may be replaced by a stop of the second die.
The beneficial effects of the invention are as follows:
through adopting the structure that makes the electric unit form tearing off the structure on compound cable protective layer to tear the breach and make the optical unit form tearing off the structure directly tearing off the breach on compound cable protective layer for optical unit and electric unit on this compound cable protective layer can directly tear off and tear, and do not influence other optical units and electric unit after electric unit or optical unit tear off, compare in traditional tearing off directly tearing off/tearing off the structure, have adopted tearing off to one side tearing off the structure and have improved its flexibility.
The above-mentioned embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present invention according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present invention shall fall within the scope of the present invention.
Claims (9)
1. The utility model provides an indoor photoelectric composite cable for 5G communication, including the composite cable protective layer, and set up optical unit and the electric unit in the composite cable protective layer, its characterized in that has a plurality of tearing units on this composite cable protective layer, should tear the unit including being the oblique tearing of form, make the electric unit form tearing off the oblique tearing of structure on the composite cable protective layer, and be straight on the composite cable protective layer, make the optical unit form tearing off the straight tearing of structure on the composite cable protective layer, this preparation method of indoor photoelectric composite cable for 5G communication, including the following steps: taking low-density polyethylene and linear low-density polyethylene for melt blending, and then adding medium-density polyethylene for secondary melt blending; adding calcium carbonate, talcum powder, silicon dioxide, a silane coupling agent and a fatty acid lubricant into the melt blending species, and uniformly stirring to obtain a melt; taking a first mould, placing the first mould into a light unit, and then pouring molten materials into the first mould to form a composite cable protective layer with the light unit; and taking the second die, loading a release piece at the position of an inner bevel opening of the composite cable protective layer with the optical unit, and pouring molten materials to form the composite cable protective layer with the optical unit and the electrical unit.
2. The indoor photoelectric composite cable for 5G communication according to claim 1, wherein: the electrical units surround the light units, the light units being located between at least two electrical units.
3. The indoor photoelectric composite cable for 5G communication according to claim 1, wherein: the oblique tearing port comprises an external oblique port arranged at the surface layer of the composite cable protective layer and an internal oblique port arranged inside the composite cable protective layer.
4. The indoor photoelectric composite cable for 5G communication according to claim 3, wherein: the external bevel is arranged on the abutting side of the electric unit, and at least two external bevel form an oblique tearing line at the electric unit.
5. The indoor photoelectric composite cable for 5G communication according to claim 4, wherein: the internal bezel is disposed adjacent to the oblique tear line and the oblique tear line is formed by at least two internal bezel lines passing through the light unit.
6. The indoor photoelectric composite cable for 5G communication according to claim 1, wherein: the straight tearing opening is arranged at the surface layer of the composite cable protection layer, is abutted against the optical unit and forms a straight tearing line passing through the optical unit.
7. The indoor photoelectric composite cable for 5G communication according to claim 1, wherein: the light units are provided with more than one, each light unit is at least abutted against one oblique tearing opening or straight tearing opening, the electric units are provided with more than one, and each electric unit is at least abutted against two oblique tearing openings.
8. The indoor photoelectric composite cable for 5G communication according to claim 1, wherein: the composite cable protective layer comprises the following raw materials: low density polyethylene, medium density polyethylene, linear low density polyethylene, calcium carbonate, talc, silica, silane coupling agent, fatty acid lubricant, the low density polyethylene and linear low density polyethylene having a melt index of 0.5 to 1.5.
9. The indoor photoelectric composite cable for 5G communication according to claim 1, wherein the first mold has a shape matching the shape of the oblique tear line and has an inner notch matching the inner oblique opening, and the second mold forms a package for the first mold and has an outer notch matching the straight tear opening.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211467111.4A CN115762896B (en) | 2022-11-22 | 2022-11-22 | Indoor photoelectric device for 5G communication composite cable and preparation method thereof |
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| CN202211467111.4A CN115762896B (en) | 2022-11-22 | 2022-11-22 | Indoor photoelectric device for 5G communication composite cable and preparation method thereof |
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| CN115762896A CN115762896A (en) | 2023-03-07 |
| CN115762896B true CN115762896B (en) | 2023-06-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104821196B (en) * | 2015-05-12 | 2017-01-04 | 江苏永鼎股份有限公司 | Retinue optoelectronic composite cable in a kind of super flexible chamber |
| CN207601374U (en) * | 2017-10-27 | 2018-07-10 | 长飞光纤光缆(上海)有限公司 | A kind of double butterfly mixed light cables of branching type |
| CN111128468A (en) * | 2020-01-10 | 2020-05-08 | 山东太平洋光纤光缆有限公司 | Photoelectric composite cable for 4G/5G small base station and preparation process thereof |
| CN113223771A (en) * | 2021-04-21 | 2021-08-06 | 宏安集团有限公司 | Cluster type butterfly photoelectric composite cable |
| CN216749443U (en) * | 2021-12-28 | 2022-06-14 | 江苏俊知光电通信有限公司 | Multi-core easy-to-separate photoelectric hybrid cable for indoor wiring |
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