WO2024255101A1 - 抗压结构、抗压光电缆及制造方法 - Google Patents

抗压结构、抗压光电缆及制造方法 Download PDF

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Publication number
WO2024255101A1
WO2024255101A1 PCT/CN2023/131643 CN2023131643W WO2024255101A1 WO 2024255101 A1 WO2024255101 A1 WO 2024255101A1 CN 2023131643 W CN2023131643 W CN 2023131643W WO 2024255101 A1 WO2024255101 A1 WO 2024255101A1
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WO
WIPO (PCT)
Prior art keywords
pressure
resistant
resistant structure
compression
plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/131643
Other languages
English (en)
French (fr)
Inventor
牛学超
陈紫薇
顾春飞
顾浩然
陈珍珍
邱兴宇
谢书鸿
薛建林
潘盼
曹凯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongtian Technology Submarine Cable Co Ltd
Original Assignee
Zhongtian Technology Submarine Cable Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongtian Technology Submarine Cable Co Ltd filed Critical Zhongtian Technology Submarine Cable Co Ltd
Priority to EP23908691.1A priority Critical patent/EP4498391A4/en
Publication of WO2024255101A1 publication Critical patent/WO2024255101A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/189—Radial force absorbing layers providing a cushioning effect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/22—Cables including at least one electrical conductor together with optical fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/14—Submarine cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/005—Power cables including optical transmission elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation

Definitions

  • the present application relates to the technical field of optical cables, and in particular to a compression-resistant structure, a compression-resistant optical cable and a manufacturing method.
  • the present application provides a compression-resistant structure, a compression-resistant optical cable and a manufacturing method to solve the technical problem that some known optical cables fixed to deep-sea clamps are easily separated from the clamps under the radial pressure of water pressure.
  • the compression-resistant optical cable of the present application When the compression-resistant optical cable of the present application is used, the compression-resistant optical cable is placed in a deep-sea environment and clamped on a deep-sea pipeline or deep-sea equipment by a clamp.
  • the hydrostatic pressure and the clamping force provided by the clamp are transmitted to the compression-resistant structure through the outer sheath, and radial pressure is applied to the second abutting plate abutting against the outer sheath, so that the second abutting plate It has a tendency to approach the inner protective layer along the radial direction of the inner protective layer, and applies radial pressure to the first abutment plates of the two support units through the two side plates at both ends thereof (belonging to the two adjacent support units).
  • the first abutment plate, the two side plates and the second abutment plate are all flat plates, the first abutment plate is parallel to the second abutment plate, two adjacent first abutment plates are spaced apart, and two adjacent second abutment plates are spaced apart.
  • the two ends of the compression-resistant structure are opposite to each other and spaced apart to form a gap connecting the inner space and the outer space;
  • the pressure-resistant optical cable further comprises a first water-blocking structure, and the first water-blocking structure is filled between the cable core and the inner sheath.
  • the pressure-resistant optical cable further comprises a second water-blocking structure, and the second water-blocking structure is filled in an inner space formed by the inner sheath and a side of the pressure-resistant structure facing the inner sheath.
  • the present application provides a method for manufacturing a compression-resistant optical cable, which is used to manufacture the aforementioned compression-resistant optical cable.
  • the method for manufacturing the compression-resistant optical cable comprises:
  • FIG1 is a schematic structural diagram of a compression-resistant optical cable according to an embodiment of the present application.
  • FIG2 is a schematic diagram of a partial structure of a compression-resistant optical cable according to an embodiment of the present application.
  • FIG3 is a schematic structural diagram of a compression-resistant structure according to an embodiment of the present application.
  • FIG4 is a schematic structural diagram of a compression-resistant structure according to another embodiment of the present application.
  • FIG5 is another partial structural schematic diagram of a compression-resistant optical cable according to an embodiment of the present application.
  • FIG6 is a flow chart of a method for manufacturing a compression-resistant optical cable according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a manufacturing process of a compression-resistant optical cable according to an embodiment of the present application.
  • FIG. 8 is a second schematic diagram of the manufacturing process of the compression-resistant optical cable according to an embodiment of the present application.
  • optical cables need to work in high-pressure environments such as deep sea areas, and need to be stably tied to deep-sea pipelines or equipment with clamps so that the gravity and disturbance force of the optical cables can be offset by the clamps that tie the optical cables.
  • optical cables will be subject to very high hydrostatic pressure.
  • Some optical cables are prone to radial contraction under hydrostatic pressure, causing the optical cables to detach from the clamps, making it impossible for the clamps to apply clamping force to the optical cables, and even causing the optical cables to slip off, collide with other sharp structures during the slipping process, and damage the sheath, affecting the normal operation of the optical cables in deep-sea environments.
  • an applicant's known technology uses cable materials with smaller deformation to prepare optical cables.
  • ordinary materials with smaller deformation are difficult to withstand both the deep sea water pressure and the clamping force of the clamp at the same time, and will still produce larger deformation and cause the optical cable to detach from the clamp.
  • the present application provides a compression-resistant optical cable 100 that can withstand both the deep-sea water pressure and the clamping force of the clamp, and the deformation generated is extremely small and is not easy to separate from the clamp, so that the compression-resistant optical cable 100 can be stably and reliably fixed to a deep-sea pipeline or deep-sea equipment under the clamping of the clamp, and the service life of the compression-resistant optical cable 100 in a deep-sea environment is extended.
  • the following will be exemplified.
  • this embodiment provides a compression-resistant optical cable 100, including a cable core 30, an inner sheath 40, an outer sheath 50, and a compression-resistant structure 10.
  • the inner sheath 40 is disposed on the outer side of the cable core 30.
  • the outer sheath 50 is disposed on the outer side of the inner sheath 40.
  • the compression-resistant structure 10 is disposed between the inner sheath 40 and the outer sheath 50.
  • the cable core 30 includes a plurality of electric core units 31 and a plurality of optical fiber units 32, which are twisted together.
  • the electric core unit 31 includes an electric core conductor 311 and an electric core insulation layer 312 coated on the electric core conductor 31
  • the optical fiber unit 32 includes an optical fiber body 321 and an optical fiber insulation layer 322 coated on the optical fiber body 321.
  • the number of electric core units 31 can be 1, 2, 3 or more, and the number of optical fiber units 32 can be 1, 2, 3 or more, and the specific number of the two can be determined according to actual needs without specific limitation.
  • the compression-resistant optical cable 100 further includes a first water-blocking structure 61, which is disposed between the cable core 30 and the inner sheath 40.
  • the first water-blocking structure 61 is filled between adjacent battery core units 31 or optical fiber units 32, and the first water-blocking structure 61 may be a room temperature cross-linking water-blocking adhesive, or a water-blocking tape or other water-blocking structure.
  • the inner sheath 40 is extruded on the outer side of the cable core 30 and can be extruded using a waterproof material.
  • the compression-resistant structure 10 includes a plurality of support units 21 and a plurality of second abutment plates 22.
  • the plurality of support units 21 abut against the inner protective layer 40 in sequence along the circumference thereof.
  • the support unit 21 includes a first abutment plate 211 abutting against the inner protective layer 40 and two side plates 212.
  • the two side plates 212 are respectively connected to the two ends of the first abutment plate 211.
  • the two side plates 212 are spaced apart from the end of the first abutment plate 211.
  • the distance between the two side plates 212 and the first abutment plate 211 is smaller than the distance between the two ends of the first abutment plate 211.
  • the plurality of second abutment plates 22 are spaced apart along the circumference of the inner protective layer 40.
  • the plurality of second abutment plates 22 abut against the outer protective layer 50 respectively.
  • the two ends of each second abutment plate 22 are respectively connected to the two side plates 212 close to each other of each two adjacent support units 21.
  • the angle between the side plate 212 and the first abutment plate 211 and the angle between the side plate 212 and the second abutment plate 22 are both acute angles, so that when the second abutment plate 22 applies radial pressure to the first abutment plate 211 through the side plate 212, the angle between the side plate 212 and the first abutment plate 211 tends to decrease, so that the connection between the first abutment plate 211 and the side plate 212 of the two adjacent support units 21 tends to approach each other.
  • the two adjacent support units 21 of the pressure-resistant structure 10 of this embodiment are abutted in sequence along the circumference of the inner protective layer 40, that is, there is no space between the two adjacent support units 21 to allow them to approach each other further, so that the pressure-resistant structure 10 is subjected to the pressure.
  • the compression-resistant structure 10 of this embodiment can achieve greater and more reliable compression resistance with relatively thinner, less and lighter materials through clever structural settings combined with the actual compression environment of the optical cable, thereby reducing the cost of the compression-resistant optical cable 100.
  • first abutting plate 211 and the inner protective layer 40 form a line contact or a surface contact
  • second abutting plate 22 and the outer protective layer 50 form a line contact or a surface contact
  • the pressure-resistant structure 10 is formed by bending a thin plate by an embossing process.
  • the pressure-resistant capacity of the first abutting plate 211, the side plate 212, and the second abutting plate 22 can be improved, so that they are not easily deformed when subjected to a large pressure, thereby ensuring the pressure-resistant performance of the pressure-resistant structure 10.
  • the thin plate is a galvanized steel plate, which has a strong compressive resistance.
  • the thin plate can also be made of other steel materials or materials with higher strength.
  • the thickness of the first abutting plate 211, the side plate 212, and the second abutting plate 22 are all T, 0.1mm ⁇ T ⁇ 1mm, and preferably 0.3mm. It should be noted that the compressive strength of the first abutting plate 211, the side plate 212, and the second abutting plate 22 increases with the increase of their thickness. In this embodiment, the specific thickness of the above three can be determined according to the compression requirements of the compression-resistant structure 10 and the outer diameter of the compression-resistant optical cable 100.
  • the first abutting plate 211, the two side plates 212 and the second abutting plate 22 are all flat plates, and the first abutting plate 211 is parallel to the second abutting plate 22.
  • the pressure-resistant structure 10 can be formed by bending a thin plate, and the surfaces of the plurality of first abutting plates 211 away from the second abutting plates 22 are located in the same plane, and the surfaces of the plurality of second abutting plates 22 away from the first abutting plates 211 are located in another plane.
  • Two adjacent first abutment plates 211 are spaced apart, and two adjacent second abutment plates 22 are spaced apart. Since the outer diameter of the inner protective layer 40 is smaller than the inner diameter of the outer protective layer 50, after the pressure-resistant structure 10 is bent to the inner protective layer 40 and the adjacent support units 21 abut against the circumference of the inner protective layer 40, the angle between the first abutment plate 211 and the side plate 212 will slightly increase, and the circumference of the virtual circle surrounded by the multiple second abutment plates 22 will increase, while the total length of the multiple second abutment plates 22 remains unchanged, so that the spacing between the two adjacent second abutment plates 22 increases, thereby forming a stable and reliable self-locking structure. In other embodiments, referring to FIG.
  • one end of the side plate 212 is connected to the first abutment plate 211 by an arc transition, and the other end of the side plate 212 is connected to the second abutment plate 22 are connected by arc transition.
  • the abutment of two adjacent support units 21 means that the connection between the first abutment plate 211 and the side plate 212 of one support unit 21 abuts against the connection between the first abutment plate 211 and the side plate 212 of the other support unit 21.
  • the specific shapes of the first abutment plate 211, the side plate 212, and the second abutment plate 22 are not limited to the aforementioned straight plate, curved plate, etc., and their specific shapes can be determined according to actual pressure resistance requirements.
  • the spacing between two adjacent first abutting plates 211 and the spacing between two adjacent second abutting plates 22 are equal and are both s
  • the angles between the two side plates 212 and the first abutting plates 211 are equal and are both ⁇
  • the vertical distance h between the first abutting plates 211 and the second abutting plates 22 the widths of the first abutting plates 211 and the second abutting plates 22 are equal and are both L
  • the outer diameter r of the inner protective layer 40, and the number n of the support units 21 obey the following formula:
  • the structural parameters of the pressure-resistant structure 10 in the expanded state can be calculated on the premise that the outer diameter r of the inner protective layer 40 is known, which is conducive to completing the processing of the pressure-resistant structure 10.
  • the angle range of ⁇ is 30° to 75°.
  • ⁇ can be any one of 30°, 31°, 32°, 33°, 34°, 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, 50°, 51°, 52°, 53°, 54°, 55°, 56°, 57°, 58°, 59°, 60°, 61°, 62°, 63°, 64°, 65°, 66°, 67°, 68°, 69°, 70°, 71°, 72°, 73°, 74°, and 75°.
  • ⁇ is too large, it will easily lead to an excessively large vertical distance h between the first abutment plate 211 and the second abutment plate 22, affecting the outer diameter requirement of the pressure-resistant optical cable 100; if ⁇ is too small, the pressure-resistant structure 10 will be easily flattened under pressure, which will affect the pressure resistance of the pressure-resistant optical cable 100.
  • ⁇ is 60°, so as to form a more stable equilateral triangle structure with better pressure resistance.
  • the angles between the two side plates 212 and the first abutment plate 211 are equal, so that the pressure transmitted by the first abutment plate 211 to the two side plates 212 is roughly the same, so that the pressure on both sides of the support unit 21 is more balanced, thereby improving the stability of the support unit 21 when bearing pressure and reducing the pressure on the support unit 21.
  • the possibility of deformation after being subjected to pressure is equal, so that the pressure transmitted by the first abutment plate 211 to the two side plates 212 is roughly the same, so that the pressure on both sides of the support unit 21 is more balanced, thereby improving the stability of the support unit 21 when bearing pressure and reducing the pressure on the support unit 21.
  • the possibility of deformation after being subjected to pressure is not limited to pressure.
  • the spacing between two adjacent first abutment plates 211 and the spacing between two adjacent second abutment plates 22 can also be set to be unequal, so that the angles between the two side plates 212 and the first abutment plates 211 are different, and the specific structural parameters of the compression-resistant structure 10 can be determined according to actual needs.
  • an inner space 63 is defined between the side of the pressure-resistant structure 10 close to the inner protective layer 40 and the inner protective layer 40
  • an outer space 64 is defined between the side of the pressure-resistant structure 10 facing the outer protective layer 50 and the outer protective layer 50.
  • the two ends of the pressure-resistant structure 10 are opposite and spaced apart to form a gap 23 connecting the inner space 63 and the outer space 64.
  • the outer protective layer 50 is provided with an opening 53 connecting the outer space 64 and the external environment.
  • the outer space 64 is formed by the space between each support unit 21 and the outer protective layer 50
  • the inner space 63 is formed by the space between each second abutting plate 22 and the inner protective layer 40.
  • the pressure-resistant structure 10 When the pressure-resistant optical cable 100 is located in an environment where the hydrostatic pressure and clamping force are greater, the pressure-resistant structure 10 has a certain bending risk.
  • the seawater in the external environment can enter the outer space 64 from the opening 53, and the seawater in the outer space 64 can enter the inner space 63 from the gap 23.
  • the pressure-resistant structure 10 has seawater on both sides of the cable core 30 in the radial direction, so that the seawater simultaneously applies pressure to both sides of the pressure-resistant structure 10 in the radial direction, thereby making the static pressure of seawater on the pressure-resistant structure 10 relatively balanced, so that the pressure-resistant optical cable 100 can still maintain a lower deformation in a deeper seawater environment, and achieve a better pressure-resistant effect.
  • a first water-blocking structure 61 is provided on the inner side of the inner sheath 40, so that the waterproof effect of the cable core 30 can be guaranteed.
  • the two ends of the pressure-resistant structure 10 in the unfolded state are respectively provided with second abutment plates 22.
  • the two second abutment plates 22 at the two ends of the pressure-resistant structure 10 can be arranged at intervals along the circumference of the cable core 30 to form a gap 23, or can be arranged at intervals along the radial direction of the cable core 30 (i.e., one second abutment plate 22 is laid on another second abutment plate 22) to form a gap 23.
  • first abutment plates 211 of the support units 21 at the two ends of the pressure-resistant structure 10 can also be connected to the adjacent second abutment plates 22 only through one side plate 212, so that after the pressure-resistant structure 10 is wound around the inner protective layer 40, the gap 23 is formed between the first abutment plates 211 at the two ends of the pressure-resistant structure 10.
  • the pressure-resistant structure 10 may not need to be provided with the gap 23, the outer protective layer 50 may not need to be provided with the opening 53, and the inner space 63 may be filled with the second water-blocking structure 62, and the second water-blocking structure 62 may support the pressure-resistant structure 10 from the inner side of the pressure-resistant structure 10 to improve the pressure resistance of the pressure-resistant structure 10.
  • the second water-blocking structure 62 may be specifically provided as water-blocking glue or glass glue.
  • the outer protective layer 50 includes an armor layer 51 and a sheath layer 52.
  • the outer surface of the pressure-resistant structure 10 abuts against the inner side of the armor layer 51 .
  • the armor layer 51 is used to fix the pressure-resistant structure 10 to the inner protective layer 40 .
  • the sheath layer 52 is arranged on the outer side of the armor layer 51 .
  • the armor layer 51 can tighten the pressure-resistant structure 10 by pressing the second abutment plate 22, and the armor layer 51 has a certain pressure resistance to reduce the pressure transmitted to the pressure-resistant structure 10, thereby reducing the pressure on the pressure-resistant structure 10 and reducing the deformation of the pressure-resistant structure 10.
  • the outer sheath 50 can be extruded on the outside of the armor layer 51 from a waterproof material.
  • a plurality of armor layers 51 are provided, and the plurality of armor layers 51 are spaced apart along the length direction of the cable core 30. In this way, it is convenient for seawater to enter the outer space 64 of the pressure-resistant structure 10 toward the outer sheath 50 side from the gap 23 between two adjacent armor layers 51, and then enter the inner space 63 through the gap 23, so as to balance the pressure on both sides of the pressure-resistant structure 10.
  • the armor layer 51 can be formed by wrapping the compression-resistant structure with galvanized steel strips, or by wrapping the compression-resistant structure with steel wires.
  • the armor layer 51 is made of galvanized steel strips, and the galvanized steel strips can be coated after the process of wrapping the compression-resistant structure 10, so as to improve the processing efficiency of the compression-resistant optical cable 100.
  • the armor layer 51 is formed by wrapping steel wires, and a plurality of steel wires are respectively pressed against the compression-resistant structure 10, so that the armor layer 51 made of steel wires has a better restraining effect on the compression-resistant structure 10 and a stronger ability to absorb seawater pressure, thereby further reducing the pressure on the compression-resistant structure 10.
  • the present embodiment further provides a method for manufacturing a compression-resistant optical cable 100, which is used to manufacture the aforementioned compression-resistant optical cable 100.
  • the method for manufacturing the compression-resistant optical cable 100 includes:
  • a compression-resistant structure 10 in an unfolded state, and simultaneously input the compression-resistant structure 10 and the first process product 65 into a conical twisting die 67, so as to wind the compression-resistant structure 10 on the outside of the first process product 65, and make a plurality of first abutting plates 211 of the compression-resistant structure 10 abut against the inner protective layer 40, and at the same time make a plurality of first abutting plates 211 of the compression-resistant structure 10 abut against each other along the circumference of the cable core 30, and a plurality of second abutting plates 22 are arranged at intervals along the circumference of the cable core 30, and then make the first process product 65 with the compression-resistant structure 10 wound thereon pass through a sizing die 68, so that the compression-resistant structure 10 is attached to the first process product 65, and a second process product 66 is obtained;
  • the outer side of the second process product 66 is covered with an outer sheath 50 , and a plurality of second abutting plates 22 of the pressure-resistant structure 10 are abutted against the outer sheath 50 , thereby obtaining a pressure-resistant optical cable 100 .
  • the pressure-resistant optical cable 100 manufactured by the manufacturing method of the pressure-resistant optical cable 100 of this embodiment can withstand the deep sea water pressure and the clamping force of the clamp at the same time, and the deformation generated is extremely small, so that the pressure-resistant optical cable 100 can be stably and reliably fixed to the deep sea pipeline or deep sea equipment under the clamping of the clamp, and the service life of the pressure-resistant optical cable 100 in the deep sea environment is extended.
  • the following will be exemplified.
  • the step of wrapping the outer protective layer 50 on the outside of the second process product 66 includes: wrapping the armor layer 51 on the outside of the second process product 66, and tightening the armor layer 51 to the pressure-resistant structure 10 on the first process product 65; wrapping the sheath layer 52 on the outside of the second process product 66 wrapped with the armor layer 51 through an extrusion mold 69, the sheath layer 52 and the armor layer 51 form an outer protective layer 50, and opening 53 connected to the inner space 63 of the outer protective layer 50 is opened in the outer protective layer 50 through a hole opening device 70.

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Abstract

本申请涉及光电缆技术领域，旨在解决一些已知的固定于深海夹具的光电缆在水压径向压力作用下容易脱离夹具的技术问题，提供抗压结构、抗压光电缆及制造方法。其中，抗压结构能够弯曲成环状，并置于光电缆的内护层和外护层之间，抗压结构包括：多个支撑单元，多个支撑单元沿内护层的周向依次抵顶，支撑单元包括抵接于内护层的第一抵接板和两个侧边板，两个侧边板分别连接于第一抵接板的两端，两个侧边板远离第一抵接板的间距小于第一抵接板的两端的间距；多个第二抵接板，多个第二抵接板沿内护层的周向间隔设置，各第二抵接板的两端分别与每相邻的两个支撑单元的相互靠近的两个侧边板连接。本申请的有益效果是提高抗压光电缆的抗压性能。

Description

抗压结构、抗压光电缆及制造方法
本申请要求于2023年06月16日提交中国专利局，申请号为202310731631.X，发明名称为“抗压结构、抗压光电缆及制造方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及光电缆技术领域，具体而言，涉及抗压结构、抗压光电缆及制造方法。
背景技术
深海水域水压较大，置于深海处的光电缆承受的静水压力较大。在部分应用场合，需要将光电缆通过夹具固定于海底的管道或设备上，然而光电缆长期承受静水压力容易产生径向收缩，进而导致光电缆脱离夹具，严重时还会导致光电缆滑脱、光电缆的护套受损的问题，影响到光电缆的使用。
发明内容
本申请提供抗压结构、抗压光电缆及制造方法，以解决一些已知固定于深海夹具的光电缆在水压径向压力作用下容易脱离夹具的技术问题。
本申请的实施例是这样实现的：
第一方面，本申请提供一种抗压结构，所述抗压结构能够弯曲成环状，并置于光电缆的内护层和外护层之间，所述抗压结构包括：多个支撑单元，多个所述支撑单元沿所述内护层的周向依次抵顶，所述支撑单元包括抵接于所述内护层的第一抵接板和两个侧边板，两个所述侧边板分别连接于所述第一抵接板的两端，两个所述侧边板远离所述第一抵接板的端部间隔设置，两个所述侧边板远离所述第一抵接板的一端的间距小于所述第一抵接板的两端的间距；多个第二抵接板，多个所述第二抵接板沿所述内护层的周向间隔设置，多个所述第二抵接板分别抵接所述外护层，各所述第二抵接板的两端分别与每相邻的两个所述支撑单元的相互靠近的两个所述侧边板连接。
本申请的抗压光电缆使用时，将抗压光电缆置于深海环境内，并通过夹具夹持于深海管道或深海设备上。静水压力和夹具提供的夹持力通过外护层传导至抗压结构处，并对抵接于外护层的第二抵接板施加径向压力，使第二抵接板 具有沿内护层的径向靠近内护层的趋势，并通过其两端的两个侧边板(隶属于两个相邻的支撑单元)朝两个支撑单元的第一抵接板施加径向压力。由于两个侧边板远离第一抵接板的间距小于第一抵接板的两端的间距，使得侧边板与第一抵接板的夹角和侧边板与第二抵接板的夹角均为锐角，从而在第二抵接板通过侧边板对第一抵接板施加径向压力时，侧边板与第一抵接板的夹角具有减小的趋势，如此，则使得相邻的两个支撑单元的第一抵接板和侧边板的连接处具有相互靠近的趋势。然而，本申请的抗压结构的相邻的两个支撑单元沿内护层的周向依次抵接，即相邻的两个支撑单元之间没有空间允许其进一步相互靠近，从而使得抗压结构在承受静水压力和夹持力时仍然可以保持可靠稳定地形状，既可以避免缆芯承受静水压力和夹持力，还可以大幅降低抗压结构的形变，避免抗压水电缆长期使用后产生抗压结构的形变，从而确保抗压水电缆可以被夹具稳定地夹持于深海管道或深海设备处，保证了抗压水电缆的绑扎可靠性。
在一种可能的实施方式中：
所述抗压结构为展开状态时，所述第一抵接板、两个所述侧边板和所述第二抵接板均为平板，所述第一抵接板平行于所述第二抵接板，相邻的两个所述第一抵接板间隔设置，相邻的两个所述第二抵接板间隔设置。
在一种可能的实施方式中：
相邻的两个所述第一抵接板的间距和相邻的两个所述第二抵接板的间距相等，两个所述侧边板与所述第一抵接板的夹角相等。
在一种可能的实施方式中：
所述抗压结构由一薄板以轧纹工艺折弯制成。
在一种可能的实施方式中：
所述侧边板的一端与所述第一抵接板圆弧过渡连接，所述侧边板的另一端与所述第二抵接板圆弧过渡连接。
第二方面，本申请提供一种抗压光电缆，包括缆芯、内护层、外护层和前述的抗压结构。所述内护层设于所述缆芯的外侧。所述外护层设于所述内护层的外侧。所述抗压结构设于所述内护层和所述外护层之间。
在一种可能的实施方式中：
所述抗压结构靠近所述内护层的一侧与所述内护层之间限定内侧空间，所述抗压结构朝向所述外护层的一侧与所述外护层之间限定外侧空间；
所述抗压结构的两端相对且间隔设置，以形成连通所述内侧空间和所述外侧空间的间隙；
所述外护层开设用于连通所述外侧空间和外部环境的开口。
在一种可能的实施方式中：
所述抗压光电缆还包括第一阻水结构，所述第一阻水结构填充于所述缆芯与所述内护层之间。
在一种可能的实施方式中：
所述抗压光电缆还包括第二阻水结构，所述第二阻水结构填充于所述抗压结构朝向所述内护层的一侧与所述内护层形成的内侧空间。
第三方面，本申请提供一种抗压光电缆的制造方法，用于制造前述的抗压光电缆，所述抗压光电缆的制造方法包括：
提供缆芯，于所述缆芯的外侧包覆内护层，得到第一过程产品；
提供展开状态下的所述抗压结构，将所述抗压结构和所述第一过程产品同时输入锥形绞合模，以绕设所述抗压结构于第一过程产品的外侧，并使所述抗压结构的多个第一抵接板抵接于所述内护层，同时使多个所述第一抵接板沿所述缆芯的周向相互抵接，多个第二抵接板沿所述缆芯的周向间隔设置，再使绕设有所述抗压结构的所述第一过程产品经过定径模，使抗压结构贴合于所述第一过程产品，并得到第二过程产品；
于所述第二过程产品的外侧包覆外护层，并使所述抗压结构的所述第二抵接板抵接于所述外护层，得到所述抗压光电缆。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1为本申请一实施例的抗压光电缆的结构示意图；
图2为本申请一实施例的抗压光电缆的局部结构示意图；
图3为本申请一实施例的抗压结构的结构示意图；
图4为本申请另一实施例的抗压结构的结构示意图；
图5为本申请一实施例的抗压光电缆的另一局部结构示意图；
图6为本申请一实施例的抗压光电缆的制造方法的流程图；
图7为本申请一实施例的抗压光电缆的制造过程示意图之一；
图8为本申请一实施例的抗压光电缆的制造过程示意图之二。
主要元件符号说明：
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。当一个元件被认为是“设置于”另一个元件，它可以是直接设置在另一个元件上或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本文所使用的术语“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施方式及实施方式中的特征可以相互组合。
一些光电缆需要在深海海域等高压环境下工作，并需要通过夹具稳定绑扎在深海管道或设备上，以使光电缆的重力和扰动力由绑扎光电缆的夹具抵消。光电缆在该环境工作时会承受很高的静水压力，部分光电缆在静水压力下容易产生径向收缩，导致光电缆脱离夹具，使夹具无法对光电缆施加夹持力，甚至会导致光电缆滑脱，并在滑脱过程中与其他尖锐结构碰撞并使护套破损，影响光电缆在深海环境下的正常工作。
为提高光电缆的抗压性能，一申请人已知技术中，采用变形量较小的电缆材料制备光电缆，然而普通的形变量较小的材料也难以同时承受深海水压以及夹具的夹持力，仍然会产生较大形变，并使光电缆脱离夹具。
有鉴于此，如图1-图4所示，本申请实施例提供一种抗压光电缆100，其能够同时承受深海水压与夹具的夹持力，并且产生的形变量极小，不易脱离夹具，以使抗压光电缆100能够在夹具的夹持下稳定可靠地固定于深海管道或深海设备处，并延长抗压光电缆100在深海环境下使用寿命。下文将示例性说明。
参见图1，本实施例提供一种抗压光电缆100，包括缆芯30、内护层40、外护层50和抗压结构10。内护层40设于缆芯30的外侧。外护层50设于内护层40的外侧。抗压结构10设于内护层40和外护层50之间。
参见图1，缆芯30包括多个电芯单元31和多个光纤单元32，多个电芯单元31和多个光纤单元32绞合制成。电芯单元31包括电芯导体311和包覆于电芯导体311的电芯绝缘层312，光纤单元32包括光纤体321和包覆于光纤体321的光纤绝缘层322。电芯单元31可设置1个、2个、3个或者多个，光纤单元32可设置1个、2个、3个或者多个，两者的具体数量可根据实际需求确定，无须进行具体限定。
本实施例中，参见图1，抗压光电缆100还包括第一阻水结构61，第一阻水结构61设于缆芯30与内护层40之间。第一阻水结构61填充于相邻的电芯单元31或光纤单元32之间，第一阻水结构61可以是室温交联阻水胶，也可以是阻水带等阻水结构。
内护层40挤塑成型于缆芯30的外侧，其可以采用防水材料挤塑成型。
参见图1至图3，抗压结构10包括多个支撑单元21和多个第二抵接板22。多个支撑单元21沿内护层40的周向依次抵顶，支撑单元21包括抵接于内护层40的第一抵接板211和两个侧边板212，两个侧边板212分别连接于第一抵接板211的两端，两个侧边板212远离第一抵接板211的端部间隔设置，两个侧边板212远离第一抵接板211的间距小于第一抵接板211的两端的间距。多个第二抵接板22沿内护层40的周向间隔设置，多个第二抵接板22分别抵接外护层50，各第二抵接板22的两端分别与每相邻的两个支撑单元21的相互靠近的两个侧边板212连接。
本实施例的抗压光电缆100使用时，将抗压光电缆100置于深海环境内，并通过夹具夹持于深海管道或深海设备上。静水压力和夹具提供的夹持力通过外护层50传导至抗压结构10处，并对抵接于外护层50的第二抵接板22施加径向压力，使第二抵接板22具有沿内护层40的径向靠近内护层40的趋势，并通过其两端的两个侧边板212(隶属于两个相邻的支撑单元21)朝两个支撑单元21的第一抵接板211施加径向压力。由于两个侧边板212远离第一抵接板211的间距小于第一抵接板211的两端的间距，使得侧边板212与第一抵接板211的夹角和侧边板212与第二抵接板22的夹角均为锐角，从而在第二抵接板22通过侧边板212对第一抵接板211施加径向压力时，侧边板212与第一抵接板211的夹角具有减小的趋势，如此，则使得相邻的两个支撑单元21的第一抵接板211和侧边板212的连接处具有相互靠近的趋势。然而，本实施例的抗压结构10的相邻的两个支撑单元21沿内护层40的周向依次抵接，即相邻的两个支撑单元21之间没有空间允许其进一步相互靠近，从而使得抗压结构10在承受 静水压力和夹持力时仍然可以保持可靠稳定地形状，既可以避免缆芯30承受静水压力和夹持力，还可以大幅降低抗压结构10的形变，避免抗压水电缆长期使用后产生抗压结构10的形变，从而确保抗压水电缆可以被夹具稳定地夹持于深海管道或深海设备处，保证了抗压水电缆的绑扎可靠性。
并且，本实施例的抗压结构10通过巧妙的结构设置，结合光电缆的实际受压环境，可以以相对较薄、较少和较轻的材料实现较大和可靠的抗压性能，从而降低抗压光电缆100的成本。
可以理解的是，本实施例中，第一抵接板211与内护层40之间形成为线接触或面接触。第二抵接板22与外护层50之间形成为线接触或面接触。
本实施例中，抗压结构10由一薄板以轧纹工艺折弯制成。通过使抗压结构10由一块薄板整体加工形成，可以提高第一抵接板211、侧边板212和第二抵接板22的抗压能力，使其在承受较大压力时不易产生形变，进而确保抗压结构10的抗压性能。
可选地，薄板为镀锌钢板，其具有较强的抗压性能。其他实施例中，薄板也可以由其他钢材或具有较高强度的材料制成。
可选地，本实施例中，第一抵接板211、侧边板212和第二抵接板22的厚度均为T,0.1mm≤T≤1mm，并优选为0.3mm。需要说明的是，第一抵接板211、侧边板212和第二抵接板22的抗压强度随其厚度增加而增加，本实施例中，上述三者的具体厚度可根据抗压结构10的抗压需求以及抗压光电缆100的外径进行确定。
本实施例中，参见图3，抗压结构10为展开状态时，第一抵接板211、两个侧边板212和第二抵接板22均为平板，第一抵接板211平行于第二抵接板22。如此可以便于抗压结构10由一薄板折弯形成，多个第一抵接板211远离第二抵接板22的表面位于同一平面，多个第二抵接板22远离第一抵接板211的表面位于另一平面。相邻的两个第一抵接板211间隔设置，相邻的两个第二抵接板22间隔设置，由于内护层40的外径小于外护层50的内径，如此，在抗压结构10弯曲于内护层40，并使相邻的支撑单元21沿内护层40的周向抵接后，第一抵接板211与侧边板212的夹角会略微变大，多个第二抵接板22围成的虚拟圆形周长增大，而多个第二抵接板22的总长度不变，使得相邻两个第二抵接板22的间距增大，从而形成稳定可靠地自锁结构。其他实施例中，参见图4，侧边板212的一端与第一抵接板211圆弧过渡连接，侧边板212的另一端与第二抵接板 22圆弧过渡连接。如此，相邻的两个支撑单元21抵接，是指一个支撑单元21的第一抵接板211与侧边板212的连接处抵接于另一支撑单元21的第一抵接板211与侧边板212的连接处。显然，第一抵接板211、侧边板212、第二抵接板22的具体形状也不限于前述的直板、曲面板等板型，其具体形状可根据实际抗压需求确定。
本实施例中，参见图3和图5，相邻的两个第一抵接板211的间距和相邻的两个第二抵接板22的间距相等且均为s、两个侧边板212与第一抵接板211的夹角相等且均为α、第一抵接板211和第二抵接板22的垂直距离h、第一抵接板211和第二抵接板22的宽度相等且均为L、内护层40的外径r、支撑单元21的数量n服从如下公式：


通过上述公式，可以在已知内护层40的外径r的前提下，计算得到位于展开状态下的抗压结构10的各结构参数，从而有利于完成抗压结构10的加工制程。
本实施例中，α的角度范围为30°至75°，例如，α可以是30°、31°、32°、33°、34°、35°、36°、37°、38°、39°、40°、41°、42°、43°、44°、45°、46°、47°、48°、49°、50°、51°、52°、53°、54°、55°、56°、57°、58°、59°、60°、61°、62°、63°、64°、65°、66°、67°、68°、69°、70°、71°、72°、73°、74°、75°中的任意一个。α过大易导致第一抵接板211和第二抵接板22的垂直距离h过大，影响到抗压光电缆100的外径要求；α过小则会使抗压结构10容易在压力作用下压平，会影响到抗压光电缆100的抗压性能，将α限制于30°至75°之间，可以在满足抗压光电缆100的外径要求的前提下保证抗压结构10的抗压性能。本实施例中，α为60°，以便形较为稳定的等边三角形结构，其具有更好的抗压性能。并且，此外，两个侧边板212和第一抵接板211的夹角相等，可以使两个侧边板212承受第一抵接板211传导的压力大致相同，使得支撑单元21的两侧承受的压力较为均衡，进而提高支撑单元21承载压力时的稳定性，降低支撑单元21 承受压力后产生形变的可能性。
当然，其他实施例中，相邻的两个第一抵接板211的间距和相邻的两个第二抵接板22的间距也可以设置为不相等，从而两个侧边板212与第一抵接板211的夹角不同，抗压结构10的具体结构参数可根据实际需求确定。
本实施例中，参见图1，抗压结构10靠近内护层40的一侧与内护层40之间限定内侧空间63，抗压结构10朝向外护层50的一侧与外护层50之间限定外侧空间64。抗压结构10的两端相对且间隔设置，以形成连通内侧空间63和外侧空间64的间隙23。外护层50开设连通外侧空间64和外部环境的开口53。本实施例中，外侧空间64由各支撑单元21与外护层50之间的空间共同形成，内侧空间63由各第二抵接板22与内护层40之间的空间共同形成。
在抗压光电缆100位于静水压力以及夹持力更大的使用环境下，抗压结构10存在一定的弯曲风险。本实施例中，通过在抗压结构10设置间隙23，并在外护层50设置开口53，使得外部环境的海水可以从开口53处进入外侧空间64内，外侧空间64的海水可以从间隙23进入内侧空间63，如此，抗压结构10沿缆芯30径向的两侧均有海水，使得海水同时对抗压结构10沿径向的两侧施加压力，进而使抗压结构10承受的海水静压力较为平衡，使得抗压光电缆100在更深的海水环境下仍然可以保持较低的形变，起到较好的抗压效果。并且，本实施例中，虽然海水可以进入至抗压结构10内侧，在内护层40内侧设有第一阻水结构61，从而可以保证缆芯30的防水效果。
本实施例中，参见图2，处于展开状态的抗压结构10的两端分别设有第二抵接板22，抗压结构10绕设于内护层40后，抗压结构10的两端的两个第二抵接板22可以沿缆芯30的周向间隔设置以形成间隙23，也可以沿缆芯30的径向间隔设置(即一个第二抵接板22搭设于另一个第二抵接板22)以形成间隙23。其他实施例中，抗压结构10两端的支撑单元21的第一抵接板211也可以仅通过一个侧边板212与相邻的第二抵接板22连接，从而在抗压结构10绕设于内护层40后，间隙23由抗压结构10的两端的第一抵接板211之间形成。
其他实施例中，抗压结构10可以无须设置间隙23，外护层50可以无须设置开口53，并在内侧空间63填充第二阻水结构62，第二阻水结构62可以从抗压结构10的内侧对抗压结构10起到支撑作用，以提高抗压结构10的抗压性能。第二阻水结构62具体可以设为阻水胶或玻璃胶等。
本实施例中，参见图1，外护层50包括铠装层51和护套层52。铠装层51 设于抗压结构10的外侧，抗压结构10的外表面抵接于铠装层51的内侧，铠装层51用于固定抗压结构10于内护层40。护套层52设于铠装层51的外侧。
铠装层51可以通过压紧第二抵接板22以收紧抗压结构10，并且铠装层51具有一定抗压性能，以降低传导至抗压结构10处的压力，从而减少抗压结构10承受的压力，降低抗压结构10的形变量。外护层50可由具有防水作用的材料挤塑成型于铠装层51的外侧。
本实施例中，铠装层51设有多个，多个铠装层51沿缆芯30的长度方向间隔分布。如此，可以有利于海水从相邻的两个铠装层51之间的间隙23进入抗压结构10朝向外护层50一侧的外侧空间64，再经由间隙23进入内侧空间63，便于在抗压结构10的两侧起到平衡压力作用。
本实施例中，铠装层51可由镀锌钢带包裹抗压结构形成，也可以由钢丝包裹抗压结构形成。采用镀锌钢带制成铠装层51，可以在包裹抗压结构10的工序之后接着进行镀锌钢带的包覆，以提高抗压光电缆100的加工效率。采用钢丝包裹形成铠装层51，多个钢丝分别压紧于抗压结构10，从而钢丝制成的铠装层51对抗压结构10的束缚作用更好，吸收海水压力的能力更强，从而进一步降低抗压结构10承受的压力。
参见图6和图7，本实施例还提供一种抗压光电缆100的制造方法，用于制造前述的抗压光电缆100，抗压光电缆100的制造方法包括：
提供缆芯30，于缆芯30的外侧包覆内护层40，得到第一过程产品65；
提供展开状态下的抗压结构10，将抗压结构10和第一过程产品65同时输入锥形绞合模67，以绕设抗压结构10于第一过程产品65的外侧，并使抗压结构10的多个第一抵接板211抵接于内护层40，同时使抗压结构10的多个第一抵接板211沿缆芯30的周向相互抵接，多个第二抵接板22沿缆芯30的周向间隔设置，再使绕设有抗压结构10的第一过程产品65经过定径模68，使抗压结构10贴合于第一过程产品65，并得到第二过程产品66；
于第二过程产品66的外侧包覆外护层50，并使抗压结构10的多个第二抵接板22抵接于外护层50，得到抗压光电缆100。
根据本实施例的抗压光电缆100的制造方法所制成的抗压光电缆100，能够同时承受深海水压与夹具的夹持力，并且产生的形变量极小，以使抗压光电缆100能够在夹具的夹持下稳定可靠地固定于深海管道或深海设备处，并延长抗压光电缆100在深海环境下使用寿命。下文将示例性说明。
本实施例中，参见图8，绕设抗压结构10时，使抗压结构10的一端搭接于抗压结构10的另一端，并形成间隙23；于第二过程产品66的外侧包覆外护层50的步骤包括：于第二过程产品66的外侧绕包铠装层51，并使铠装层51收紧抗压结构10于第一过程产品65；通过挤塑模具69于绕包有铠装层51的第二过程产品66的外侧包覆护套层52，护套层52和铠装层51形成外护层50，并通过开孔装置70在在外护层50开设连通至外护层50内侧空间63的开口53。
可以理解的是，通过形成开口53和间隙23后，抗压结构10沿缆芯30径向的两侧均有海水，使得海水同时对抗压结构10沿径向的两侧施加压力，进而使抗压结构10承受的海水静压力较为平衡，使得抗压光电缆100在更深的海水环境下仍然可以保持较低的形变，起到较好的抗压效果。
以上实施方式仅用以说明本申请的技术方案而非限制，尽管参照以上较佳实施方式对本申请进行了详细说明，本领域的普通技术人员应当理解，可以对本申请的技术方案进行修改或等同替换都不应脱离本申请技术方案的精神和范围。

Claims (10)

  1. 一种抗压结构，其特征在于，所述抗压结构能够弯曲成环状，并置于光电缆的内护层和外护层之间，所述抗压结构包括：
    多个支撑单元，多个所述支撑单元沿所述内护层的周向依次抵顶，所述支撑单元包括抵接于所述内护层的第一抵接板和两个侧边板，两个所述侧边板分别连接于所述第一抵接板的两端，两个所述侧边板远离所述第一抵接板的端部间隔设置，两个所述侧边板远离所述第一抵接板的一端的间距小于所述第一抵接板的两端的间距；
    多个第二抵接板，多个所述第二抵接板沿所述内护层的周向间隔设置，多个所述第二抵接板分别抵接所述外护层，各所述第二抵接板的两端分别与每相邻的两个所述支撑单元的相互靠近的两个所述侧边板连接。
  2. 根据权利要求1所述的抗压结构，其特征在于：
    所述抗压结构为展开状态时，所述第一抵接板、两个所述侧边板和所述第二抵接板均为平板，所述第一抵接板平行于所述第二抵接板，相邻的两个所述第一抵接板间隔设置，相邻的两个所述第二抵接板间隔设置。
  3. 根据权利要求2所述的抗压结构，其特征在于：
    相邻的两个所述第一抵接板的间距和相邻的两个所述第二抵接板的间距相等，两个所述侧边板与所述第一抵接板的夹角相等。
  4. 根据权利要求1所述的抗压结构，其特征在于：
    所述抗压结构由一薄板以轧纹工艺折弯制成。
  5. 根据权利要求1所述的抗压结构，其特征在于：
    所述侧边板的一端与所述第一抵接板圆弧过渡连接，所述侧边板的另一端与所述第二抵接板圆弧过渡连接。
  6. 一种抗压光电缆，其特征在于，包括：
    缆芯；
    内护层，所述内护层设于所述缆芯的外侧；
    外护层，所述外护层设于所述内护层的外侧；
    如权利要求1至5中任一项所述的抗压结构，所述抗压结构设于所述内护层和所述外护层之间。
  7. 根据权利要求6所述的抗压光电缆，其特征在于：
    所述抗压结构靠近所述内护层的一侧与所述内护层之间限定内侧空间，所述抗压结构朝向所述外护层的一侧与所述外护层之间限定外侧空间；
    所述抗压结构的两端相对且间隔设置，以形成连通所述内侧空间和所述外侧空间的间隙；
    所述外护层开设用于连通所述外侧空间和外部环境的开口。
  8. 根据权利要求7所述的抗压光电缆，其特征在于：
    所述抗压光电缆还包括第一阻水结构，所述第一阻水结构填充于所述缆芯与所述内护层之间。
  9. 根据权利要求6所述的抗压光电缆，其特征在于：
    所述抗压光电缆还包括第二阻水结构，所述第二阻水结构填充于所述抗压结构朝向所述内护层的一侧与所述内护层形成的内侧空间。
  10. 一种抗压光电缆的制造方法，其特征在于，用于制造如权利要求6至9中任一项所述的抗压光电缆，所述抗压光电缆的制造方法包括：
    提供缆芯，于所述缆芯的外侧包覆内护层，得到第一过程产品；
    提供展开状态下的所述抗压结构，将所述抗压结构和所述第一过程产品同时输入锥形绞合模，以绕设所述抗压结构于第一过程产品的外侧，并使所述抗压结构的多个第一抵接板抵接于所述内护层，同时使多个所述第一抵接板沿所述缆芯的周向相互抵接，多个第二抵接板沿所述缆芯的周向间隔设置，再使绕设有所述抗压结构的所述第一过程产品经过定径模，使抗压结构贴合于所述第一过程产品，并得到第二过程产品；
    于所述第二过程产品的外侧包覆外护层，并使所述抗压结构的所述第二抵接板抵接于所述外护层，得到所述抗压光电缆。
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