CN216871634U - Photoelectric composite cable - Google Patents
Photoelectric composite cable Download PDFInfo
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- CN216871634U CN216871634U CN202221361051.3U CN202221361051U CN216871634U CN 216871634 U CN216871634 U CN 216871634U CN 202221361051 U CN202221361051 U CN 202221361051U CN 216871634 U CN216871634 U CN 216871634U
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Abstract
The utility model discloses a photoelectric composite cable, which comprises a light transmission unit, an electric transmission unit, a structure reinforcing unit and an outer sheath, wherein the structure reinforcing unit comprises: the outer sheath is wrapped on the outer sides of the optical transmission unit, the electric transmission unit and the structure reinforcing unit; the optical transmission unit includes: at least one optical fiber, an optical fiber sheath and an armor layer; the optical fiber sheath is wrapped outside the optical fiber; the armor layer is arranged outside the optical fiber sheath; the armor layer comprises a plurality of first metal wires which are arranged in parallel and extend spirally along the circumferential direction of the optical fiber sheath; the photoelectric composite cable is suitable for transmission of electric power and optical signals in the elevator, has good wind resistance, wear resistance, bending resistance and tensile mechanical property, and is suitable for complex working condition environments when the elevator repeatedly runs up and down.
Description
Technical Field
The utility model relates to the field of signal transmission optical cables, in particular to a photoelectric composite cable.
Background
Not only need provide illumination electric power in the current elevator, also need provide the light signal that is used for multimedia media service simultaneously, traditional elevator carries out photoelectric transmission through optical cable and the cable of laying alone respectively, but elevator courtyard space is narrow and small, traditional laying means has taken a lot of spaces, and combine photoelectric transmission line, adopt the form of photoelectric composite cable to transmit electric power and light signal simultaneously, can save limited elevator space, but elevator operation is irregular motion repeatedly, to conventional photoelectric composite cable, be difficult to satisfy high performance requirements such as anti-wind, wear-resisting, resistant bending and resistant book.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a photoelectric composite cable which is used for transmitting electric power and optical signals in an elevator and has good wind resistance, wear resistance, bending resistance and tensile mechanical property.
The above object of the present invention can be achieved by the following technical solutions:
the utility model provides an optical-electrical composite cable, which comprises an optical transmission unit, an electric transmission unit, a structure reinforcing unit and an outer sheath, wherein: the outer sheath is wrapped on the outer sides of the optical transmission unit, the electric transmission unit and the structure reinforcing unit;
the optical transmission unit includes:
at least one optical fiber;
an optical fiber sheath disposed outside the optical fiber;
the package is established the armor outside the optical fiber sheath, the armor includes many first wires, many first wire is and sets up side by side, and follows the circumference of optical fiber sheath is the spiral and extends.
In the above optical/electrical composite cable, the optical transmission unit can be wound to form an arc, and a minimum curvature radius of the arc is less than or equal to 10 mm.
The above-mentioned optical-electrical composite cable, wherein the optical transmission unit includes:
the braided layer is arranged on the outer side of the armor layer in a wrapping mode and comprises a plurality of second metal wires, and the second metal wires are woven in a crossed mode to form the braided layer.
The above-mentioned optical-electrical composite cable, wherein the optical transmission unit further includes:
and the filler is filled in the optical fiber sheath, and the optical fibers are uniformly penetrated in the filler.
The optical-electrical composite cable described above, wherein the number of the electrical transmission units and the structural reinforcing member is plural, and the plural electrical transmission units are respectively disposed on two opposite sides of the optical transmission unit; the plurality of structural reinforcing members are respectively disposed at opposite sides of the optical transmission unit, the plurality of structural reinforcing members are respectively located at outer sides of the plurality of electrical transmission units, and the optical transmission unit, the plurality of electrical transmission units, and the plurality of structural reinforcing members are located on the same plane.
The above-mentioned optical/electrical composite cable, wherein the electrical transmission unit comprises:
a wire;
and the wire sheath is wrapped on the outer side of the wire.
The optical-electrical composite cable described above, wherein the cross-sectional area of the conductive wire is greater than or equal to 0.75 mm.
In the above photoelectric composite cable, the structural reinforcement is a metal strand formed by twisting a plurality of fine round metal wires, a diameter of a single fine round metal wire is greater than or equal to 0.35mm, and a diameter of the metal strand is greater than or equal to 1 mm.
In the above photoelectric composite cable, a 10m residual rotation of the metal strand is less than or equal to 1 rotation.
In the above photoelectric composite cable, the outer sheath is made of halogen-free flame-retardant polyolefin material.
The utility model has the characteristics and advantages that:
the photoelectric composite cable is suitable for transmission of electric power and optical signals in the elevator, has good wind resistance, wear resistance, bending resistance and tensile mechanical property, and is suitable for complex working condition environments when the elevator repeatedly runs up and down.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of the structure of the present invention.
Fig. 2 is a schematic perspective view illustrating a structure of an optical transmission unit according to the present invention.
Description of the reference numerals
1. An optical transmission unit; 11. an optical fiber; 12. an optical fiber jacket; 13. an armor layer; 14. weaving layer; 2. an electrical transmission unit; 21. a wire; 22. a wire sheath; 3. a structural reinforcement; 4. an outer sheath.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, indirect connections through intermediaries, and the like. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
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 application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiment provides an optical-electrical composite cable which can be used for transmission of electric power and optical signals in an elevator. As shown in fig. 1 and fig. 2, the optical-electrical composite cable of the present embodiment includes an optical transmission unit 1, an electrical transmission unit 2, a structural reinforcing unit 3, and an outer sheath 4, wherein: the outer sheath 4 is wrapped outside the optical transmission unit 1, the electric transmission unit 2 and the structure reinforcing unit 3; the optical transmission unit 1 includes: at least one optical fiber 11; an optical fiber sheath 12 surrounding the optical fiber 11; the armor layer 13 is wrapped outside the optical fiber sheath 12, the armor layer 13 includes a plurality of first metal wires 131, and the plurality of first metal wires 131 are arranged in parallel and extend spirally along the circumference of the optical fiber sheath 12.
The photoelectric composite cable of the embodiment has good wind resistance, wear resistance, bending resistance and tensile mechanical property, and is suitable for complex working condition environments when an elevator repeatedly runs up and down. The optical transmission unit 1 can transmit data for multimedia equipment in the elevator, the electric transmission unit 2 can transmit electric power for lighting, music, streaming media equipment and the like in the elevator, and the structure reinforcing unit 3 can ensure that the whole photoelectric composite cable has good tensile and bending-resistant mechanical properties. The optical transmission unit 1, the electric transmission unit 2 and the structure reinforcing unit 3 are arranged in parallel and wrapped by the outer sheath 4, so that the photoelectric composite cable is compact in overall structure and has a flat appearance, good bending performance is achieved, and good signal transmission stability can be still kept when the elevator repeatedly runs up and down. In addition, the outer sheath 4 can also protect the optical transmission unit 1, the electric transmission unit 2 and the structure strengthening unit 3 inside the outer sheath from being bitten by rats, so that the stability of optical signal transmission is ensured again. In order to further improve the signal transmission stability and structural integrity of the optical transmission unit 1, the optical transmission unit 1 is provided with an optical fiber sheath 12 outside the optical fiber 11, so that a plurality of optical fibers 11 are compactly arranged to improve the space utilization rate of the optical-electrical composite cable and the inside of the optical transmission unit 1; this optical fiber sheath 12 outsourcing is equipped with armor 13, this armor 13 is by many first wires 131 side by side and be the spiral around optical fiber sheath 12 and form, make light transmission unit 1 self have good tensile mechanical properties, prevent that the tensile stress that the compound cable operation in-process of photoelectricity produced at light transmission unit 1 part from influencing signal transmission, and this armor 13 comprises first wire 131, can not influence the holistic bending property of light transmission unit 1 and compound cable of photoelectricity, be convenient for improve the laying convenience and the life of compound cable of photoelectricity.
Specifically, the optical transmission unit 1 of the present embodiment can meet a certain bending performance requirement to ensure stability of data transmission of the internal optical signal, and preferably, the optical transmission unit 1 of the present embodiment can be wound to form an arc, and a minimum curvature radius of the arc is less than or equal to 10 mm. Therefore, the optical transmission unit 1 can be ensured to have good arrangement convenience, and the photoelectric composite cable generated by the up-and-down operation of the elevator can not be repeatedly bent to generate internal damage;
specifically, the filler can be added between a plurality of optical fibers in the optical transmission unit of this embodiment to ensure that the positions of a plurality of optical fibers and the signal transmission are stable, preferably, the optical transmission unit 1 further includes the filler filled in the optical fiber sheath 12, and the optical fibers 11 are uniformly penetrated in the filler. Therefore, the optical fibers 11 can be stably arranged in the optical fiber sheath 12, so that the stability of optical signal data transmission is ensured, and specifically, the filler can be aramid yarn or other filler materials capable of stably fixing the optical fibers 11;
specifically, the optical fiber 11 in the optical transmission unit 1 can meet a certain signal transmission stability requirement to ensure the stability of data transmission, for example, the optical fiber 11 can meet the signal transmission anti-attenuation performance requirements of @1310nm attenuation less than or equal to 0.36dB/km and @1550nm attenuation less than or equal to 0.22 dB/km; the optical fiber sheath 12 can achieve a certain flame retardant property to prevent serious consequences such as fire caused by internal heating of the photoelectric composite cable, for example, the optical fiber sheath 12 is made of a low-smoke halogen-free flame retardant material; the plurality of first wires 131 of the armor layer 13 may use steel wires to ensure good tensile mechanical properties.
The optical transmission unit of this embodiment includes braided layer 14, and this braided layer 14 package is established in the outside of armor 13, and braided layer 14 includes a plurality of second wire 141, and a plurality of second wire 141 are alternately woven and are formed braided layer 14. By arranging the braid 14 outside the armor layer 13, the tensile mechanical property of the optical transmission unit 1 can be further improved, and the lateral pressure resistance of the optical transmission unit 1 can be improved on the premise of ensuring the bending property, so that the optical fiber 1 inside the optical transmission unit 1 can still keep stable signal transmission when being blown by wind or bent under pressure. In particular, second metal wire 141 of braided layer 14 may be a steel wire to ensure good compression mechanical properties.
The number of the electric transmission unit 2 and the structural reinforcement 3 of the present embodiment is plural, and the plural electric transmission units 2 are respectively disposed on opposite sides of the optical transmission unit 1; the plurality of structural reinforcements 3 are respectively disposed on opposite sides of the optical transmission unit 1, the plurality of structural reinforcements 3 are respectively located outside the plurality of electrical transmission units 2, and the optical transmission unit 1, the plurality of electrical transmission units 2, and the plurality of structural reinforcements 3 are located on the same plane. The arrangement of the plurality of electric transmission units 2 can enable the photoelectric composite cable to simultaneously provide power transmission for various devices in the elevator so as to meet richer power utilization requirements; the symmetry sets up a plurality of structure reinforcers 3, can guarantee that the compound cable of photoelectricity has good tensile mechanical properties to make the compound cable of photoelectricity internal stress even, and then guarantee the stability of the compound cable operation of photoelectricity.
Specifically, the electrical transmission unit 2 can carry a power transmission load of sufficient power to meet the power demand of various devices in the elevator, and in this embodiment, the electrical transmission unit 2 includes: a lead 21 and a lead sheath 22, the lead sheath 22 being disposed around the outside of the lead 21. The wire 21 can be used for transmitting power, and the wire sheath 22 can protect the wire 21 and function as insulation. The wire 21 is capable of carrying a power load of sufficient power, in the present embodiment, the cross-sectional area of the wire 21 is greater than or equal to 0.75mm, so as to ensure that the wire 21 has a lower resistivity, in particular, the wire 21 can be made of soft round copper wire;
this structural reinforcement 3 has certain mechanical properties requirement to guarantee the tensile and bending stability of photoelectric composite cable, in this embodiment, this structural reinforcement 3 is the metal strand wires that are twisted by many thin round wire, and the diameter of single thin round wire is more than or equal to 0.35mm, and the diameter of this metal strand wires is more than or equal to 1 mm. The metal stranded wires are formed by twisting a plurality of thin round metal wires, so that the photoelectric composite cable has enough tensile strength and bending resistance, the minimum diameter of each thin round metal wire and the whole metal stranded wire is limited, the tensile strength of the structural reinforcement 3 can be kept at certain redundancy, and the running stability of the photoelectric composite cable is further ensured. Specifically, the metal stranded wire further has a certain anti-rotation performance to reduce the structural stress inside the structural reinforcement 3, and in this embodiment, the residual rotation of 10m of the metal stranded wire is less than or equal to 1 rotation, so that the performance of the structural reinforcement 3 in the operation process of the photoelectric composite cable is stable.
In this embodiment, the outer sheath 4 is made of a halogen-free flame retardant polyolefin material. By using the halogen-free flame-retardant polyolefin material, the photoelectric composite cable has good flame-retardant property, so that the operation stability and the service life of the photoelectric composite cable are improved.
The above description is only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.
Claims (8)
1. An optical-electrical composite cable comprising an optical transmission unit, an electrical transmission unit, a structural reinforcing unit, and an outer jacket, wherein: the outer sheath is wrapped on the outer sides of the optical transmission unit, the electric transmission unit and the structural reinforcing unit, the number of the electric transmission unit and the structural reinforcing member is multiple, and the electric transmission units are respectively arranged on two opposite sides of the optical transmission unit; the plurality of structural reinforcing members are respectively arranged at two opposite sides of the optical transmission unit, the plurality of structural reinforcing members are respectively positioned at the outer sides of the plurality of electrical transmission units, and the optical transmission unit, the plurality of electrical transmission units and the plurality of structural reinforcing members are positioned on the same plane;
the optical transmission unit includes:
at least one optical fiber;
an optical fiber sheath disposed outside the optical fiber;
the armor layer is wrapped outside the optical fiber sheath and comprises a plurality of first metal wires which are arranged in parallel and extend spirally along the circumferential direction of the optical fiber sheath;
the braided layer is arranged on the outer side of the armor layer in a wrapping mode and comprises a plurality of second metal wires, and the second metal wires are woven in a crossed mode to form the braided layer.
2. The optical-electrical composite cable of claim 1, wherein the optical transmission units are capable of being wound to form an arc having a minimum radius of curvature of 10mm or less.
3. The optical-electrical composite cable of claim 1, wherein the optical transmission unit further comprises:
and the filler is filled in the optical fiber sheath, and the optical fibers are uniformly penetrated in the filler.
4. The optical-electrical composite cable of claim 1, wherein the electrical transmission unit comprises:
a wire;
and the wire sheath is wrapped on the outer side of the wire.
5. The optical-electrical composite cable of claim 4, wherein the cross-sectional area of the wire is greater than or equal to 0.75 mm.
6. The optical-electrical composite cable according to claim 1, wherein the structural reinforcement is a metal strand formed by twisting a plurality of fine round metal wires, a diameter of a single fine round metal wire is greater than or equal to 0.35mm, and a diameter of the metal strand is greater than or equal to 1 mm.
7. The optoelectronic composite cable of claim 6, wherein the 10m residual twist of the metal strands is less than or equal to 1 turn.
8. The optical-electrical composite cable of claim 1, wherein the outer jacket is made of a halogen-free flame-retardant polyolefin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221361051.3U CN216871634U (en) | 2022-06-02 | 2022-06-02 | Photoelectric composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221361051.3U CN216871634U (en) | 2022-06-02 | 2022-06-02 | Photoelectric composite cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216871634U true CN216871634U (en) | 2022-07-01 |
Family
ID=82124810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221361051.3U Active CN216871634U (en) | 2022-06-02 | 2022-06-02 | Photoelectric composite cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216871634U (en) |
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2022
- 2022-06-02 CN CN202221361051.3U patent/CN216871634U/en active Active
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