CN213123903U - Photoelectric hybrid cable for underwater robot - Google Patents
Photoelectric hybrid cable for underwater robot Download PDFInfo
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- CN213123903U CN213123903U CN202022265130.1U CN202022265130U CN213123903U CN 213123903 U CN213123903 U CN 213123903U CN 202022265130 U CN202022265130 U CN 202022265130U CN 213123903 U CN213123903 U CN 213123903U
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Abstract
The utility model discloses a photoelectric hybrid cable for underwater robot, include: the cable comprises a light unit cable core, four power cable cores, a water-blocking filling layer, an inner cushion layer, a reinforcing layer and a sheath layer; wherein, the four power wire cores are arranged in four equal parts and tangent with each other two by two; the optical unit wire core is arranged in a middle gap formed by the four power wire cores and forms a cable core together with the four power wire cores; the optical unit wire core is tangent to the four power wire cores; the inner cushion layer is wrapped outside the power wire core; the water-blocking filling layer is arranged in the gap among the inner cushion layer, the optical unit wire core and the power wire core; the enhancement layer and the sheath layer are sequentially wound outside the inner cushion layer. The utility model improves the water-blocking performance by arranging the water-blocking filling layer in the inner cushion layer, realizes the effect of blocking water in the whole section, can effectively block water when the cable body is damaged, and reduces the loss in time; and the internal structure of the cable is compactly arranged, and the cable is in a cable forming structure arranged in four equal parts, so that the cable has high bending performance, towing performance and good flexibility.
Description
Technical Field
The utility model relates to an optical cable field of making especially relates to a photoelectric mixed cable for underwater robot.
Background
Currently, various countries have begun to develop ocean resources gradually. Because the seabed environment is complex, the manual exploration is full of risks, and therefore, the seabed exploration robot is produced. The operation of a subsea exploration robot requires the provision of power and signals, etc., which places high demands on the cables that provide the robot with power and signals.
Due to factors such as the flow of sea water at the sea bottom, the motion of an underwater robot and the like, a cable is required to bear larger mechanical stress; meanwhile, in order to meet the requirements of the underwater robot on launching operation and recycling after completing operation, the cable is required to have excellent bending performance, towing performance and good flexibility.
Therefore, there is a need for a hybrid optical/electrical cable for underwater robots that can effectively prevent water while satisfying high bending performance, towing performance, and good flexibility.
Disclosure of Invention
The utility model aims at providing a photoelectric mixed cable for underwater robot.
Realize the utility model discloses the technical scheme of purpose is:
an opto-electric hybrid cable for an underwater robot, comprising:
the cable comprises a light unit cable core, four power cable cores, a water-blocking filling layer, an inner cushion layer, a reinforcing layer and a sheath layer;
wherein, the four power wire cores are arranged in a quartering way and tangent with each other; the optical unit wire core is arranged in a middle gap formed by the four power wire cores and forms a cable core together with the four power wire cores; the optical unit wire core is tangent to the four power wire cores; the inner cushion layer is wrapped outside the power wire core; the water-blocking filling layer is arranged in the gap among the inner cushion layer, the optical unit wire core and the power wire core; and the reinforcing layer and the sheath layer are sequentially wound outside the inner cushion layer.
The optical unit wire core comprises two single-mode optical fibers arranged at intervals in a centrosymmetric manner, a loose tube layer arranged outside the two single-mode optical fibers, an optical unit insulating layer arranged outside the loose tube layer, and an armor layer arranged outside the optical unit insulating layer; hydrogen absorption paste is filled between the two single-mode optical fibers and the loose tube layer; a colloidal filler with a water-blocking effect is filled between the optical unit insulating layer and the armor layer
The single-mode optical fiber is an ultra-low-loss G657A2 optical fiber; the loose sleeve layer is modified polypropylene; the light unit insulating layer is made of PBT polyester plastic; the armor layer is a spiral steel wire armor layer.
The power wire core comprises a power wire core conductor, an inner liner layer and a power wire core insulating layer which are sequentially arranged from inside to outside.
The power wire core conductor is stranded by thin copper wires with the diameter of 0.295 mm; the inner liner layer is made of fluoroplastic and has the thickness of 0.4 mm; the power wire core insulating layer is made of cross-linked polyethylene and is 2.8mm thick.
The reinforcing layer is made of high-strength aramid fiber, the Young modulus is larger than 115Gpa, and the elongation at break is smaller than 2%.
The waterproof filling layer comprises a waterproof material and a waterproof tape wrapped outside the waterproof material; the water-blocking material is a polyurethane material.
The inner cushion layer is made of high-density polyethylene and has the thickness of 0.6 mm; the sheath layer is made of polyurethane rubber.
The utility model discloses has positive effect:
(1) the utility model improves the water-blocking performance by arranging the water-blocking filling layer in the inner cushion layer, realizes the effect of blocking water in the whole section, can effectively block water when the cable body is damaged, and reduces the loss in time; and the internal structure of the cable is compactly arranged, and the cable is in a cable forming structure arranged in four equal parts, so that the cable has high bending performance, towing performance and good flexibility.
(2) The utility model discloses a single mode fiber adopts the G657A2 optic fibre of ultralow loss, and optic fibre has transmission distance far away, and anti bending property is good, and tensile strength advantage such as big can guarantee that underwater robot is when the operation is retrieved with putting in, and the mixed cable of photoelectricity can not influence the information transmission effect because of receiving tension and bending.
(3) The utility model discloses a modified polypropylene is adopted on pine cover layer, and modified polypropylene has that bending property is good, and the hygroscopicity is little advantage, can effectively avoid mixed cable of photoelectricity under water under the complex environment, takes place cracked phenomenon.
(4) The light unit insulating layer of the utility model adopts PBT polyester plastic, thereby further protecting the single mode fiber; in addition, a spiral steel wire armor layer is arranged outside the insulating layer, so that the optical unit wire core can be well protected against lateral pressure generated from the outside when in use.
(5) The utility model discloses a single mode fiber and loose cover layer are filled there is the hydrogen paste of inhaling, can ensure that single mode fiber when long-term operation under water, avoid coming from the hydrogen loss that aquatic hydrogen ion and hydroxyl ion caused single mode fiber, guarantee the unblocked of optical unit sinle silk communication.
(6) The utility model discloses a it has the gelatineous filler of the effect that blocks water to fill between optical unit insulating layer and the armor, can effectively wrap up into a whole with whole optical unit sinle silk, and the inside seal blocks water, reaches the effect that blocks water comprehensively.
(7) The power core conductor of the utility model adopts thin copper wires with the diameter of 0.295mm to be twisted, thereby ensuring the flexibility of the cable on one hand and ensuring that the cable can not be oxidized and corroded in severe environment on the other hand; and the fluoroplastic lining layer and the crosslinked polyethylene power wire core insulating layer are arranged outside the power wire core conductor, so that the pressure resistance and the heat resistance of the cable are effectively enhanced, the conductor is more stable in a high-voltage state, and the conductor is not easy to break down.
(8) The utility model discloses an enhancement layer adopts high strength aramid fiber, and Young's modulus is greater than 115Gpa, and the elongation at break is less than 2%, can effectively strengthen the mechanical properties of mixed cable of photoelectricity, prevents the atress fracture, and high strength aramid fiber possesses the effect that blocks water simultaneously, can effectively completely cut off the mixed cable of photoelectricity and at the normal work of underwater robot hydrone infiltration when underwater work.
(9) The inner cushion layer of the utility model is made of high density polyethylene, which can provide protection function while ensuring the roundness of the cable core; the restrictive coating is polyurethane rubber, and polyurethane rubber has that wear resistance is good, and the hardness scope is wide, and mechanical strength is high, and mould-resistant, water-fast, advantage such as resistant oil are applicable to various complicated environment under water that can be fine, still has fine elasticity and compliance simultaneously, can greatly reduce the impact of external force to the mixed cable of photoelectricity, and compare in traditional steel wire armoured cable external diameter and weight littleer, the cost is lower.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the structure diagram of the optical unit core of the present invention.
Fig. 3 is a schematic structural view of the power line core of the present invention.
The reference numbers are:
the hydrogen absorption optical fiber comprises an optical unit wire core 1, a single-mode optical fiber 1-1, a loose sleeve layer 1-2, an optical unit insulating layer 1-3, an armor layer 1-4, a hydrogen absorption paste 1-5 and a colloidal filler 1-6;
the power cable comprises a power cable core 2, a power cable core conductor 2-1, an inner lining layer 2-2 and a power cable core insulating layer 2-3;
a water-blocking filling layer 3, a water-blocking material 3-1 and a water-blocking tape 3-2;
an inner cushion layer 4;
a reinforcing layer 5;
a sheath layer 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention will be described and explained in detail by specific examples.
(example 1)
Referring to fig. 1 to 3, a hybrid optical/electrical cable for an underwater robot includes: the cable comprises an optical unit cable core 1, four power cable cores 2, a water-blocking filling layer 3, an inner cushion layer 4, a reinforcing layer 5 and a sheath layer 6; wherein, the four power wire cores 2 are arranged in a quartering way and tangent with each other; the optical unit wire core 1 is arranged in a middle gap formed by the four power wire cores 2 and forms a cable core together with the four power wire cores 2; the optical unit wire core 1 is tangent to the four power wire cores 2; the inner cushion layer 4 is wrapped outside the power wire core 1; the water-blocking filling layer 3 is arranged in the gap among the inner cushion layer 4, the optical unit wire core 1 and the power wire core 2; the inner cushion layer 4 is sequentially wrapped with a reinforcing layer 5 and a sheath layer 6; the water-blocking filling layer 3 is arranged in the inner cushion layer 4, so that the water-blocking performance is improved, the full-section water-blocking effect is realized, and when a cable body is damaged, water can be effectively blocked, and loss is timely reduced; and the internal structure of the cable is compactly arranged, and the cable is in a cable forming structure arranged in four equal parts, so that the cable has high bending performance, towing performance and good flexibility.
The optical unit wire core 1 comprises two single-mode optical fibers 1-1 which are arranged in a centrosymmetric mode at intervals, a loose sleeve layer 1-2 arranged outside the two single-mode optical fibers 1-1, an optical unit insulating layer 1-3 arranged outside the loose sleeve layer 1-2, and an armor layer 1-4 arranged outside the optical unit insulating layer 1-3; the hydrogen absorption paste 1-5 is filled between the two single-mode optical fibers 1-1 and the loose sleeve layer 1-2, so that hydrogen loss of the single-mode optical fibers 1-1 caused by hydrogen ions and hydroxyl ions in water can be avoided when the single-mode optical fibers 1-1 are operated underwater for a long time, and smooth communication of the optical unit wire core 1 is ensured; and colloidal fillers 1-6 with a water-blocking effect are filled between the optical unit insulating layers 1-3 and the armor layers 1-4, so that the whole optical unit wire core 1 can be effectively wrapped into a whole, the inside of the whole optical unit wire core is sealed and blocked, and the effect of comprehensively blocking water is achieved.
The single-mode optical fiber 1-1 is an ultra-low-loss G657A2 optical fiber, has the advantages of long transmission distance, good bending resistance, high tensile strength and the like, and can ensure that the photoelectric hybrid cable cannot influence the information transmission effect due to tension and bending when the underwater robot operates, puts in and recovers; the loose sleeve layers 1-2 are made of modified polypropylene, the modified polypropylene has the advantages of good bending performance and small hygroscopicity, and the phenomenon that the underwater photoelectric hybrid cable is broken in an underwater complex environment can be effectively avoided; the optical unit insulating layer 1-3 is made of PBT polyester plastic, and can further protect the single-mode optical fiber 1-1; armor 1-4 are spiral steel wire armor, and the side pressure that the protection light unit sinle silk that can be fine produced from the outside is resisted when using.
The power wire core 2 comprises a power wire core conductor 2-1, an inner lining layer 2-2 and a power wire core insulating layer 2-3 which are sequentially arranged from inside to outside; the power core conductor 2-1 is twisted by thin copper wires with the diameter of 0.295mm, so that the flexibility of the cable is ensured, and the cable is prevented from being oxidized and corroded in a severe environment; the inner liner layer 2-2 is made of fluoroplastic and has the thickness of 0.4 mm; the power core insulating layer 2-3 is crosslinked polyethylene, the thickness is 2.8mm, the inner liner 2-2 and the power core insulating layer 2-3 are arranged on the power core conductor 2-1 in a double-layer co-extrusion mode, the pressure resistance and the heat resistance of the cable are effectively enhanced, and the power core conductor 2-1 is guaranteed to be more stable in a high-voltage state and not easy to break down.
The enhancement layer 5 adopts high strength aramid fiber, and Young's modulus is greater than 115Gpa, and the elongation at break is less than 2%, can effectively strengthen the mechanical properties of mixed cable of photoelectricity, prevents the atress fracture, and high strength aramid fiber possesses the effect of blocking water simultaneously, can effectively completely cut off the mixed cable of photoelectricity hydrone infiltration when underwater work, ensures that underwater robot normally works.
The water-blocking filling layer 3 comprises a water-blocking material 3-1 and a water-blocking tape 3-2 wrapped outside the water-blocking material 3-1; the water-blocking material 3-1 is a polyurethane material; the inner cushion layer 4 is made of high-density polyethylene, can provide protection while ensuring the roundness of the cable core, and has the thickness of 0.6 mm; sheath layer 6 is polyurethane rubber, and polyurethane rubber has that wear resistance is good, and the hardness scope is wide, and mechanical strength is high, and mould resistance, water-fast, advantages such as resistant oil can be fine be applicable to various complicated environment under water, still has fine elasticity and compliance simultaneously, can greatly reduce the impact of external force to the mixed cable of photoelectricity, and compare in traditional steel wire armoured cable external diameter and weight littleer, and the cost is lower, the preferred TPU plastics that adopt of this embodiment.
The photoelectric hybrid cable for the underwater robot with the structure can meet the requirement of bearing the water pressure of 6Mpa, namely corresponding to the maximum use water depth of 600 m; when the cable body is damaged, the length of water pressure invading the cable body is less than 200m within 14 days, and the loss is reduced in time; the power wire core 2 bears voltage reaching 6kv, the current-carrying capacity is 40A, and the power and control requirements of the underwater robot can be met.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a photoelectric mixed cable for underwater robot which characterized in that includes:
the cable comprises an optical unit cable core (1), four power cable cores (2), a water-blocking filling layer (3), an inner cushion layer (4), a reinforcing layer (5) and a sheath layer (6);
wherein the four power wire cores (2) are arranged in a quartering manner and tangent to each other; the optical unit wire core (1) is arranged in a middle gap formed by the four power wire cores (2) and forms a cable core together with the four power wire cores (2); the optical unit wire core (1) is tangent to the four power wire cores (2); the inner cushion layer (4) is wrapped outside the power wire core (2); the water-blocking filling layer (3) is arranged in the gap among the inner cushion layer (4), the optical unit wire core (1) and the power wire core (2); and the inner cushion layer (4) is sequentially wrapped with a reinforcing layer (5) and a sheath layer (6).
2. The opto-electric hybrid cable for underwater robots according to claim 1, characterized in that: the optical unit cable core (1) comprises two single-mode optical fibers (1-1) which are arranged in a centrosymmetric mode at intervals, a loose sleeve layer (1-2) arranged outside the two single-mode optical fibers (1-1), an optical unit insulating layer (1-3) arranged outside the loose sleeve layer (1-2), and an armor layer (1-4) arranged outside the optical unit insulating layer (1-3); a hydrogen absorption paste (1-5) is filled between the two single-mode optical fibers (1-1) and the loose sleeve layer (1-2); and a colloidal filler (1-6) with a water-blocking effect is filled between the optical unit insulating layer (1-3) and the armor layer (1-4).
3. The opto-electric hybrid cable for underwater robots according to claim 2, characterized in that: the single-mode optical fiber (1-1) is an ultra-low-loss G657A2 optical fiber; the loose sleeve layer (1-2) is modified polypropylene; the light unit insulating layer (1-3) is made of PBT polyester plastic; the armor layers (1-4) are spiral steel wire armor layers.
4. The opto-electric hybrid cable for underwater robots according to claim 1, characterized in that: the power wire core (2) comprises a power wire core conductor (2-1), an inner liner layer (2-2) and a power wire core insulating layer (2-3) which are sequentially arranged from inside to outside.
5. The opto-electric hybrid cable for underwater robot of claim 4, wherein: the power wire core conductor (2-1) is stranded by thin copper wires with the diameter of 0.295 mm; the inner liner layer (2-2) is made of fluoroplastic and has the thickness of 0.4 mm; the power wire core insulating layer (2-3) is made of cross-linked polyethylene and has the thickness of 2.8 mm.
6. The opto-electric hybrid cable for underwater robots according to claim 1, characterized in that: the reinforcing layer (5) is made of high-strength aramid fiber, the Young modulus is larger than 115Gpa, and the elongation at break is smaller than 2%.
7. The opto-electric hybrid cable for underwater robots according to claim 1, characterized in that: the waterproof filling layer (3) comprises a waterproof material (3-1) and a waterproof tape (3-2) wrapped outside the waterproof material (3-1); the water-blocking material (3-1) is a polyurethane material.
8. The opto-electric hybrid cable for underwater robots according to claim 1, characterized in that: the inner cushion layer (4) is made of high-density polyethylene and has the thickness of 0.6 mm; the sheath layer (6) is made of polyurethane rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022265130.1U CN213123903U (en) | 2020-10-13 | 2020-10-13 | Photoelectric hybrid cable for underwater robot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022265130.1U CN213123903U (en) | 2020-10-13 | 2020-10-13 | Photoelectric hybrid cable for underwater robot |
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| CN213123903U true CN213123903U (en) | 2021-05-04 |
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| CN202022265130.1U Active CN213123903U (en) | 2020-10-13 | 2020-10-13 | Photoelectric hybrid cable for underwater robot |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314258A (en) * | 2021-05-28 | 2021-08-27 | 东莞市永晟电线科技股份有限公司 | Tensile shielding cable for wall climbing robot |
| WO2024166946A1 (en) * | 2023-02-08 | 2024-08-15 | 住友電気工業株式会社 | Optical fiber cable and optical fiber unit |
-
2020
- 2020-10-13 CN CN202022265130.1U patent/CN213123903U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314258A (en) * | 2021-05-28 | 2021-08-27 | 东莞市永晟电线科技股份有限公司 | Tensile shielding cable for wall climbing robot |
| WO2024166946A1 (en) * | 2023-02-08 | 2024-08-15 | 住友電気工業株式会社 | Optical fiber cable and optical fiber unit |
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