Spiral photoelectric composite cable
By adding armored spiral tubes and aramid braided layers to the outside of the optical fiber, the problem of insufficient protection for the optical fiber in existing spiral optical fiber composite cables is solved, achieving high-strength tensile protection for the optical fiber and preventing optical fiber breakage.
Patent Information
- Application Number
- CN202520304803.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing spiral optical fiber composite cables lack additional protection for easily damaged optical fibers, relying solely on the outer sheath and armor layer for weak protection, making the optical fibers prone to damage during use.
By adding structures such as armored spiral tubes, aramid braided layers, and a first inner sheath to the outside of the optical fiber, the optical fiber is given additional protection. Combined with the outer sheath, core filler, and overall shielding layer, tensile protection is provided to enhance the strength of the optical fiber.
It improves the strength of optical fibers, prevents them from breaking during use, and enhances the overall protection of the cable.
Smart Images
Figure CN223815670U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of optical cable, concretely relates to a spiral photoelectric composite cable. BACKGROUND
[0002] Optical fiber as the medium of information transmission in modern communication network is a burgeoning communication technology which shows incomparable superiority from the beginning and arouses great interest and attention of people. In the past few decades, it has obtained rapid development. Due to the advantages of optical fiber transmission such as large transmission capacity, immunity to electromagnetic interference and strong confidentiality, the use of optical cable has very wide application market in signal transmission and the like. With the gradual refinement of the application market, various optical cables with special functions also emerge as the times require.
[0003] At present, in some semi-motion type photoelectric connection, the traditional optical cable connection needs to leave a long margin, and the extra length is randomly stacked in a place, which wastes space and is easy to cause artificial damage to the cable. Or it needs to be plugged in and out for many times, which damages the service life of the connector. The existence of the spiral photoelectric composite cable can well realize this feature. Therefore, the demand for a spiral photoelectric composite cable is increasing.
[0004] The existing spiral photoelectric composite cable does not have additional protection for the optical fiber which is easy to be damaged, and only relies on the outer sheath of the total cable after cabling and the protection of the armor layer, so the protection effect is weak. In view of this, the utility model is provided. UTILITY MODEL CONTENT
[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a spiral photoelectric composite cable.
[0006] To solve the above technical problems, the basic idea of the technical scheme of the utility model is:
[0007] A spiral photoelectric composite cable comprises an outer sheath, a filling core is arranged inside the outer sheath, a first PTFE empty tube is arranged outside the filling core, and the outer part of the first PTFE empty tube is annularly arranged with one first unit, two second units, one third unit, one fourth unit, one fifth unit and two sixth units.
[0008] The two sixth units are optical units, each optical unit comprises an optical fiber inner core, a tight wrapping layer, an armored spiral tube, an aramid woven layer and a first inner sheath, the outer side of the optical fiber inner core is provided with the tight wrapping layer, the armored spiral tube is arranged outside the tight wrapping layer, the aramid woven layer is woven outside the armored spiral tube, and the first inner sheath is arranged outside the aramid woven layer.
[0009] The first unit is an electric unit, and the electric unit comprises three first silver-plated copper twisted wires in a pair of twisted cables, an outer part of each first silver-plated copper twisted wire is wrapped with a first ETFE insulation layer, and the three first ETFE insulation layers are arranged inside a same first inner shielding layer.
[0010] The outer sheath is internally provided with a total shielding layer.
[0011] Optionally, the two second units are super five category network cables, each super five category network cable comprises four inner cores composed of second silver-plated copper twisted wires in a pair of twisted cables, an outer part of each second silver-plated copper twisted wire is wrapped with a PFA insulation layer, and the four inner cores are arranged inside a same second inner shielding layer.
[0012] Optionally, the third unit, the fourth unit and the fifth unit are all shielded network cables, the third unit is composed of one signal line three twisted group, two signal line double twisted groups and one signal line single wire group, and the one signal line three twisted group, the two signal line double twisted groups and the one signal line single wire group are arranged inside a same third inner shielding layer.
[0013] Optionally, the fourth unit is composed of one signal line three twisted group and eight signal line single wire groups, and the one signal line three twisted group and the eight signal line single wire groups are arranged inside a same fourth inner shielding layer.
[0014] Optionally, the fifth unit is composed of two signal line three twisted groups and two whole round auxiliary lines, and the signal line three twisted groups and the signal line double twisted groups are both composed of signal line single wires, the two signal line three twisted groups and the two whole round auxiliary lines are arranged inside a fifth inner shielding layer, and each signal line single wire comprises a third silver-plated copper twisted wire, and an outer part of each third silver-plated copper twisted wire is wrapped with a second ETFE insulation layer.
[0015] Optionally, a surface of the outer sheath is coated with a capsaicin layer, and a water blocking belt is arranged between an inner surface of the outer sheath and an outer surface of the total shielding layer.
[0016] Optionally, a second PTFE empty tube is further arranged between the total shielding layer and the first PTFE empty tube, an FRP auxiliary core is arranged inside the second PTFE empty tube, and a flame-retardant nylon grass is further arranged inside the total shielding layer.
[0017] After the above technical scheme is adopted, the present application has the following advantages compared with the prior art, of course, any product implementing the present application does not necessarily need to achieve all the advantages described below:
[0018] 1. In addition to the outer sheath, core filler, first PTFE hollow tube and overall shielding layer for tensile protection, the individual optical fibers inside the cable also use armored spiral tube, aramid braided layer and first inner sheath for additional protection in addition to the normal tight-packing layer. This improves the strength of the inner core optical fiber and prevents optical fiber breakage during use.
[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0020] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.
[0021] In the picture:
[0022] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the combined parts structure of the sixth unit in this utility model;
[0024] Figure 3 This is a schematic diagram of the combined parts structure of the first unit in this utility model;
[0025] Figure 4 This is a schematic diagram of the combined parts structure of the second unit in this utility model;
[0026] Figure 5 for Figure 1 A schematic diagram of the structure of part A in the diagram.
[0027] The attached diagram lists the components represented by each number as follows:
[0028] 1. Outer sheath; 2. Core filler; 3. First PTFE hollow tube; 4. Optical fiber inner core; 5. Tight-packed layer; 6. Armored spiral tube; 7. Aramid braided layer; 8. First inner sheath; 9. First silver-plated copper stranded wire; 10. First ETFE insulation layer; 11. First inner shielding layer; 12. Overall shielding layer; 13. Second silver-plated copper stranded wire; 14. PFA insulation layer; 15. Second inner shielding layer; 16. Signal line single wire; 17. Third inner shielding layer; 18. Fourth inner shielding layer; 19. Third silver-plated copper stranded wire; 20. Second ETFE insulation layer; 21. Capsaicin layer; 22. Water-blocking tape; 23. Second PTFE hollow tube; 24. FRP auxiliary core; 25. Flame-retardant nylon straw; 26. Fifth inner shielding layer.
[0029] It should be noted that the drawings and the written description are not intended to limit the scope of the present application in any way, but are merely to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0030] The present application will now be further described in detail with reference to the accompanying drawings.
[0031] Please refer to Figures 1 to 5 The present application provides a technical solution: a spiral photoelectric composite cable, comprising an outer sheath 1, the inner part of the outer sheath 1 is provided with a filling core 2, a first PTFE hollow tube 3 is sleeved outside the filling core 2, the outer part of the first PTFE hollow tube 3 is annularly arranged with one first unit, two second units, one third unit, one fourth unit, one fifth unit and two sixth units;
[0032] The two sixth units are optical units, each optical unit comprises an optical fiber inner core 4, a tight buffer layer 5, an armored spiral tube 6, an aramid braided layer 7 and a first inner sheath 8, the outer side of the optical fiber inner core 4 is provided with the tight buffer layer 5, the armored spiral tube 6 is installed outside the tight buffer layer 5, the aramid braided layer 7 is braided outside the armored spiral tube 6, and the first inner sheath 8 is arranged outside the aramid braided layer 7;
[0033] The first unit is an electrical unit, the electrical unit comprises three first silver-plated copper twisted wires 9 twisted into a cable, the outer part of each first silver-plated copper twisted wire 9 is wrapped with a first ETFE insulating layer 10, and the three first ETFE insulating layers 10 are arranged inside a same first inner shielding layer 11;
[0034] The inner part of the outer sheath 1 is provided with a total shielding layer 12, considering that the existing spiral photoelectric composite cable does not have additional protection for the optical fiber which is easy to be damaged, only relying on the outer sheath 1 of the total cable after being twisted into a cable and the protection of the armored layer, the protection effect is weak, in addition to the anti-pulling protection of the outer sheath 1, the filling core 2, the first PTFE hollow tube 3 and the total shielding layer 12, the inner optical fiber of the cable is additionally protected by the armored spiral tube 6, the aramid braided layer 7 and the first inner sheath 8, thereby improving the use strength of the inner core optical fiber and preventing the optical fiber from being broken during use.
[0035] Each super five category network cable comprises four inner cores twisted into a cable by second silver-plated copper twisted wires 13, the outer part of each second silver-plated copper twisted wire 13 is wrapped with a PFA insulating layer 14, and the four inner cores are arranged inside a same second inner shielding layer 15, each second silver-plated copper twisted wire 13 is anti-interference by the second inner shielding layer 15, and the PFA insulating layer 14 plays a role in temperature isolation.
[0036] The third unit, the fourth unit and the fifth unit are all shielded net wires, the third unit is composed of one signal wire three-strand group, two signal wire two-strand groups and one signal wire single wire 16, and the one signal wire three-strand group, the two signal wire two-strand groups and the one signal wire single wire 16 are arranged in the same third inner shielding layer 17, and the third inner shielding layer 17 plays a role of preventing electromagnetic interference on the signal wire single wire 16 in the third unit.
[0037] The fourth unit is composed of one signal wire three-strand group and eight signal wire single wires 16, and the one signal wire three-strand group and the eight signal wire single wires 16 are arranged in the same fourth inner shielding layer 18, and the fourth inner shielding layer 18 plays a role of preventing electromagnetic interference on the signal wire single wire 16 in the fourth unit to avoid interference between multiple units.
[0038] The fifth unit is composed of two signal wire three-strand groups and two whole round auxiliary wires, and the signal wire three-strand group and the signal wire two-strand group are both composed of signal wire single wires 16, and the two signal wire three-strand groups and the two whole round auxiliary wires are arranged in the fifth inner shielding layer 26, and each signal wire single wire 16 comprises a third silver-plated copper stranded wire 19, and the outer part of each third silver-plated copper stranded wire 19 is wrapped with a second ETFE insulating layer 20.
[0039] The surface of the outer sheath 1 is coated with a capsaicin layer 21, and a water-blocking belt 22 is arranged between the inner surface of the outer sheath 1 and the outer surface of the total shielding layer 12, the capsaicin layer 21 prevents the cable from being bitten by rodents during use, effectively protecting the cable body, and the water-blocking belt 22 plays a role of waterproof protection for the cable, and adopts a water-swelling material, when water enters the surface of the outer sheath 1, the water-blocking belt 22 swells to block the pores of the surface, thereby preventing liquid from entering, and forming a waterproof barrier.
[0040] The second PTFE hollow tube 23 is further arranged between the total shielding layer 12 and the first PTFE hollow tube 3, the FRP auxiliary core 24 is arranged in the second PTFE hollow tube 23, and the flame-retardant nylon grass 25 is further arranged in the total shielding layer 12, and the FRP auxiliary core 24 further improves the tensile capacity of the cable body.
[0041] The utility model is not limited to the above-mentioned embodiment, any person should know that the structural change made under the enlightenment of the utility model, any technical scheme with the same or similar technical scheme of the utility model falls into the protection scope of the utility model. The utility model is not described in detail, and the technical, shape and structure parts are all known technologies.
Claims
1. A helical photoelectric composite cable comprising an outer jacket (1), characterized in that, The outer sheath (1) is internally provided with a filling core (2), and the filling core (2) is externally provided with a first PTFE hollow tube (3); the first PTFE hollow tube (3) is externally provided with a ring-shaped array of one first unit, two second units, one third unit, one fourth unit, one fifth unit and two sixth units; The two sixth units are optical units, and each optical unit comprises an optical fiber inner core (4), a tight buffer layer (5), an armored spiral tube (6), an aramid woven layer (7) and a first inner sheath (8); the optical fiber inner core (4) is externally provided with the tight buffer layer (5), the tight buffer layer (5) is externally provided with the armored spiral tube (6), the armored spiral tube (6) is externally provided with the aramid woven layer (7), and the aramid woven layer (7) is externally provided with the first inner sheath (8); The first unit is an electrical unit, and the electrical unit comprises three first silver-plated copper twisted pairs (9); the outer part of each first silver-plated copper twisted pair (9) is wrapped with a first ETFE insulating layer (10), and the three first ETFE insulating layers (10) are arranged in the inner part of a first inner shielding layer (11); The inner part of the outer sheath (1) is provided with a total shielding layer (12).
2. The spiral opto-electrical composite cable according to claim 1, wherein, The two second units are super five category network cables, and each super five category network cable comprises four inner cores twisted into a cable by second silver-plated copper twisted pairs (13); the outer part of each second silver-plated copper twisted pair (13) is wrapped with a PFA insulating layer (14), and the four inner cores are arranged in the inner part of a second inner shielding layer (15).
3. The spiral opto-electrical composite cable according to claim 1, wherein, The third unit, the fourth unit and the fifth unit are all shielded network cables; the third unit comprises one signal line three twisted group, two signal line two twisted groups and one signal line single wire (16), and the one signal line three twisted group, the two signal line two twisted groups and the one signal line single wire (16) are arranged in the inner part of a third inner shielding layer (17).
4. The helical photoelectric composite cable according to claim 3, wherein, The fourth unit comprises one signal line three twisted group and eight signal line single wires (16), and the one signal line three twisted group and the eight signal line single wires (16) are arranged in the inner part of a fourth inner shielding layer (18).
5. The helical photoelectric composite cable according to claim 3, wherein, The fifth unit comprises two signal line three twisted groups and two whole round auxiliary lines, and the signal line three twisted groups and the signal line two twisted groups are both composed of signal line single wires (16); the two signal line three twisted groups and the two whole round auxiliary lines are arranged in the inner part of a fifth inner shielding layer (26), and each signal line single wire (16) comprises a third silver-plated copper twisted pair (19), and the outer part of each third silver-plated copper twisted pair (19) is wrapped with a second ETFE insulating layer (20).
6. The spiral opto-electrical composite cable according to claim 1, wherein, The surface of the outer sheath (1) is coated with a capsaicin layer (21), and a water-blocking belt (22) is arranged between the inner surface of the outer sheath (1) and the outer surface of the total shielding layer (12).
7. The spiral opto-electrical composite cable according to claim 1, wherein, A second PTFE hollow tube (23) is further arranged between the total shielding layer (12) and the first PTFE hollow tube (3); an FRP auxiliary core (24) is arranged in the inner part of the second PTFE hollow tube (23); and a flame-retardant nylon grass (25) is further arranged in the inner part of the total shielding layer (12).