An optical cable, optical cable assembly, and communication system
By introducing elastic layers and reinforcing components into the optical cable, the reliability issues of the optical cable under bending and external forces are solved, improving the mechanical strength and communication quality of the optical cable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-12
AI Technical Summary
How to improve the reliability of optical cables to ensure the quality of optical signal transmission.
An optical cable structure was designed, including an optical waveguide, a sheath, an elastic layer, a reinforcing member, and an adhesive layer. The sheath surrounds the outer periphery of the optical waveguide, the elastic layer buffers internal stress, the reinforcing member improves mechanical strength, and the adhesive layer is used for installation. Tear grooves facilitate operation.
It effectively improves the reliability of optical cables, reduces damage caused by bending and external forces, and improves the communication quality of communication systems.
Smart Images
Figure CN224354622U_ABST
Abstract
Description
[0001] This application claims priority to Chinese patent application filed on December 28, 2024, with application number 202423310275.3 and entitled "An optical cable, optical cable assembly and communication system", the entire contents of which are incorporated herein by reference. Technical Field
[0002] This application relates to the field of optical devices, and more particularly to an optical cable, an optical cable assembly, and a communication system. Background Technology
[0003] Optical fiber cable is a crucial structural component in communication systems. It is a communication cable that uses one or more optical fibers encased in a protective sheath as the transmission medium. The reliability of the optical cable directly affects the transmission quality of optical signals in the communication system.
[0004] Therefore, improving the reliability of optical cables is a problem that communication systems need to solve. Utility Model Content
[0005] This application provides an optical cable, an optical cable assembly, and a communication system, aimed at improving the reliability of the optical cable.
[0006] To achieve the above objectives, this application adopts the following technical solution.
[0007] In a first aspect, this application provides an optical cable. The optical cable includes an optical waveguide, a sheath, an elastic layer, a reinforcing member, and a first adhesive layer. The sheath surrounds the outer peripheral surface of the optical waveguide; the sheath includes a first surface and a second surface, the first surface having a first tear groove. The elastic layer is connected to the second surface. The first adhesive layer is connected to the surface of the elastic layer away from the sheath; the sheath surrounds the outer peripheral surface of the reinforcing member, the reinforcing member extending in the same direction as the optical waveguide.
[0008] In this way, the sheath protects the optical waveguide from contamination by moisture or dust, and also reduces the impact of external forces such as collisions. The optical cable can be installed on the mounting surface through the first adhesive layer. When the optical cable is bent, the optical waveguide also bends accordingly. Internal stress or bending stress will be generated at the bending points of the waveguide. The buffering effect of the elastic layer can release this internal stress or bending stress, effectively mitigating the problem of waveguide damage caused by this internal stress or bending stress, and improving the reliability of the optical cable. In addition, the reinforcement can improve the mechanical strength of the optical cable, mitigating the problem of tearing or breaking caused by external forces. The reinforcement also helps to mitigate the problem of damage to the optical waveguide caused by high bending stress in the cable.
[0009] In conjunction with the first aspect, in some feasible embodiments, the elastic layer does not cover the first tear groove. Thus, the first tear groove is exposed outside the elastic layer, facilitating the application of force to the first tear groove and simplifying the process of peeling the sheath through it.
[0010] In conjunction with the first aspect, in some feasible embodiments, the second surface is provided with a second tear groove. Thus, during the fabrication of the optical cable, the first and second surfaces can be distinguished without regard to the first surface, saving fabrication time and reducing costs.
[0011] In conjunction with the first aspect, in some feasible ways, the elastic layer covers the second tear groove. Thus, even though the elastic layer covers the second tear groove, the sheath can still be peeled off through the first tear groove.
[0012] In conjunction with the first aspect, in some feasible embodiments, the first and second surfaces are respectively two surfaces of the sheath disposed opposite to each other. Thus, the cable size is larger in the direction perpendicular to the first surface. The elastic layer and the first adhesive layer have less impact on the dimensions in the direction parallel to the first surface.
[0013] In conjunction with the first aspect, in some feasible embodiments, the sheath further includes a third surface connecting the first surface and the second surface, with a smooth transition between the first surface and the third surface, and a smooth transition between the second surface and the third surface. This avoids the connection points between the first and third surfaces being too sharp.
[0014] In conjunction with the first aspect, in some feasible embodiments, the first surface and the second surface are two adjacent surfaces of the sheath. Thus, the elastic layer and the first adhesive layer have less influence on the dimensions in the direction perpendicular to the first surface.
[0015] In conjunction with the first aspect, in some feasible ways, the first surface or the second surface is a rough surface. This can increase the bonding strength between the second surface and the elastic layer. The first surface can scatter light.
[0016] In conjunction with the first aspect, in some feasible embodiments, the optical cable further includes a second adhesive layer located between the elastic layer and the sheath. Thus, the elastic layer and the sheath are connected by the second adhesive layer, which increases the connection strength between the elastic layer and the sheath.
[0017] In conjunction with the first aspect, in some feasible embodiments, the reinforcement is made of a transparent material. This results in reduced visibility of the reinforcement. In embodiments where the sheath is made of a transparent material, both the reinforcement and the sheath have high light transmittance, which is beneficial to the aesthetics of the optical cable.
[0018] In conjunction with the first aspect, in some feasible ways, the reinforcing member is made of materials including: glass yarn, aramid fiber, ultra-high molecular weight polyethylene, glass fiber reinforced plastic, or Kevlar fiber reinforced plastic. This results in a reinforcing member with high strength, which is beneficial for improving the strength of the optical cable.
[0019] In conjunction with the first aspect, in some feasible ways, the sheath material includes low-smoke halogen-free materials, polyvinyl chloride, thermoplastic polyurethane elastomer rubber, polyamide, or thermoplastic polyamide elastomer. The aforementioned materials have low visibility, which can improve the aesthetics of the sheath.
[0020] In conjunction with the first aspect, in some feasible ways, the material of the elastic layer may include porous materials, foamed materials, or flexible materials. Porous materials, foamed materials, or flexible materials have excellent cushioning properties.
[0021] In conjunction with the first aspect, in some feasible embodiments, the materials for the elastic layer include: polyacrylate, polyurethane, polystyrene, ternary rubber, polyethylene, ethylene-vinyl acetate copolymer, or styrene-based thermoplastic elastomers. The excellent elasticity of the aforementioned materials can enhance the protective effect of the elastic layer.
[0022] In conjunction with the first aspect, in some feasible ways, the material of the first adhesive layer is a hot melt adhesive; or, the material of the first adhesive layer is a pressure-sensitive adhesive. This results in better adhesion of the first adhesive layer.
[0023] In conjunction with the first aspect, in some feasible ways, the sheath is a transparent sheath. This results in high light transmittance of the sheath, which is beneficial to the aesthetics of the optical cable.
[0024] In conjunction with the first aspect, in some feasible ways, the optical waveguide is a single-core fiber or a multi-core fiber. Thus, the optical cable can be used with various types of optical fibers.
[0025] In conjunction with the first aspect, in some feasible embodiments, the optical cable also includes a release film that is bonded to the surface of the first adhesive layer opposite to the sheath. Thus, the release film protects the surface of the first adhesive layer opposite to the elastic layer from contamination by dust or moisture.
[0026] Secondly, this application provides an optical cable. The optical cable includes an optical waveguide, a sheath, an elastic layer, and a first adhesive layer. The sheath includes a substrate and a cylindrical body, the cylindrical body being connected to the substrate and surrounding the outer peripheral surface of the optical waveguide. The elastic layer is connected to the surface of the substrate away from the cylindrical body. The first adhesive layer is connected to the surface of the elastic layer away from the sheath. The sheath surrounds the outer peripheral surface of a reinforcing member, the extension direction of which is consistent with the extension direction of the optical waveguide.
[0027] Thus, the sheath protects the optical waveguide from contamination by moisture or dust, and also reduces the impact of external forces such as impacts. The optical cable can be installed to the mounting surface through the first adhesive layer. The cylinder and optical waveguide protrude from the substrate. The substrate provides support for the cylinder and optical waveguide, and the stress on the substrate and cylinder can be buffered by the elastic layer, reducing the stress impact on the optical waveguide. When the optical cable is bent, the optical waveguide also bends accordingly. Internal stress or bending stress will be generated at the bending part of the optical waveguide. The buffering effect of the elastic layer can release this internal stress or bending stress, effectively improving the problem of optical waveguide damage caused by internal stress or bending stress, and improving the reliability of the optical cable. In addition, the reinforcement also helps to improve the problem of optical waveguide damage caused by high bending stress in the cable.
[0028] In conjunction with the second aspect, in some feasible embodiments, the sheath includes: a plurality of the cylindrical bodies and a plurality of the optical waveguides, each of the cylindrical bodies being connected to the same side of the substrate; one of the cylindrical bodies surrounding the outer peripheral surface of at least one of the optical waveguides.
[0029] In conjunction with the second aspect, in some feasible embodiments, the optical cable further includes a second adhesive layer located between the elastic layer and the sheath.
[0030] In conjunction with the second aspect, in some feasible ways, the material of the reinforcement includes a transparent material.
[0031] In conjunction with the second aspect, in some feasible ways, the material of the reinforcement includes: glass yarn, glass fiber, aramid, ultra-high molecular weight polyethylene, glass fiber reinforced plastic, or Kevlar fiber reinforced plastic.
[0032] In conjunction with the second aspect, in some feasible ways, the reinforcing element is a glass rod or glass filament.
[0033] In conjunction with the second aspect, in some feasible ways, the sheath material includes low-smoke halogen-free materials, polyvinyl chloride, thermoplastic polyurethane elastomer rubber, polyamide, or thermoplastic polyamide elastomer.
[0034] In conjunction with the second aspect, in some feasible ways, the material of the elastic layer may include porous materials, foamed materials, or flexible materials.
[0035] In conjunction with the second aspect, in some feasible ways, the material of the elastic layer includes: polyacrylate, polyurethane, polystyrene, ternary rubber, polyethylene, ethylene-vinyl acetate copolymer, or styrene-based thermoplastic elastomers.
[0036] In conjunction with the second aspect, in some feasible ways, the material of the first adhesive layer is a hot melt adhesive; or, the material of the first adhesive layer is a pressure-sensitive adhesive.
[0037] In conjunction with the second point, in some feasible ways, the sheath is transparent. This reduces the visibility of the sheath, thus lowering the visibility of the optical cable and making its cabling simpler.
[0038] In conjunction with the second aspect, in some feasible ways, the optical waveguide is a single-core fiber or a multi-core fiber. Thus, the optical cable can be adapted to various types of optical waveguides.
[0039] Thirdly, this application provides an optical cable assembly. The optical cable assembly includes a connector and any one of the optical cables provided in the first and second aspects described above, with one end of the optical cable connected to the connector. Since optical cables have high reliability, the optical cable assembly including the aforementioned optical cable also has correspondingly high reliability.
[0040] Fourthly, this application provides a communication system. The communication system includes a first network device, a second network device, and any of the optical cable assemblies provided in the third aspect above. The second network device is connected to the connector, and the first network device is connected to the end of the optical cable away from the connector.
[0041] Because optical fiber optic assemblies have the advantage of high reliability, the communication quality between the first network device and the second network device is highly reliable.
[0042] Regarding the beneficial effects of the second, third, and fourth aspects, please refer to the description of any optional implementation method in the first aspect, which will not be repeated here. Based on the implementation methods provided in the above aspects, this application can also be further combined to provide more implementation methods. Attached Figure Description
[0043] Figure 1 This is a schematic diagram of the structure of a communication system.
[0044] Figure 2 This is a schematic diagram of the structure of an optical cable provided in an embodiment of this application.
[0045] Figure 3 The diagram shows the structures of two optical waveguides provided in the embodiments of this application.
[0046] Figure 4 This is a schematic diagram of another optical cable structure provided in an embodiment of this application.
[0047] Figure 5 This is a schematic diagram of another type of optical cable provided in an embodiment of this application.
[0048] Figure 6 This is a schematic diagram of another optical cable provided in an embodiment of this application.
[0049] Figure 7This is a schematic diagram of the structure of an optical cable including multiple elastic layers, provided as an embodiment of this application.
[0050] Figure 8 This is a schematic diagram of another type of optical cable provided in an embodiment of this application.
[0051] Figure 9 This is a schematic diagram of a sheath including a cylindrical body, provided as an embodiment of this application.
[0052] Figure 10 This is a schematic diagram of another structure of a sheath including a cylindrical body, provided for an embodiment of this application.
[0053] In the figure: 10-Communication system; 20-First network device; 30-Second network device; 40-Optical cable assembly; 41-Connector; 100-Optical cable; 110-Sheath; 120-Optical waveguide; 130-Elastic layer; 140-First adhesive layer; 121-Fiber core; 122-Cladding; 150-Release film; 160-Reinforcing member; 170-Second adhesive layer; 111-Substrate; 112-Cylinder; 101-First surface; 102-Second surface; 103-First tear groove; 104-Second tear groove; 105-Third surface; 106-Third tear groove; 107-Fourth surface. Detailed Implementation
[0054] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0055] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.
[0056] Furthermore, in the embodiments of this application, directional terms such as "up," "down," "left," "right," "horizontal," and "vertical" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.
[0057] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, an electrical connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.
[0058] Figure 1This is a schematic diagram of the structure of a communication system 10. The communication system 10 may also be referred to as an optical transmission network. The communication system 10 includes one or more network devices, such as a first network device 20 and a second network device 30. The first network device 20 or the second network device 30 is used to communicate with a user's terminal.
[0059] A terminal can also be called a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), or station (STA), etc.
[0060] In some embodiments, the terminal may be a mobile phone, tablet computer, computer with wireless transceiver function, personal communication service (PCS) telephone, desktop computer, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal in industrial control, wireless terminal in smart home, etc.
[0061] The first network device 20 can be a routing and forwarding device with optical communication capabilities, such as a router or a switch. The first network device 20 can also be a broadband network gateway (BNG) or a broadband remote access optical communication device with optical communication capabilities. Similarly, the second network device 30 can be a routing and forwarding device with optical communication capabilities, or it can be a broadband network gateway or a broadband remote access optical communication device with optical communication capabilities.
[0062] Terminals can access optical communication equipment using network devices. For example... Figure 1 In room 1 shown, users can use a terminal to establish a communication connection with network devices using wireless local area network (WLAN) technology, so that the terminal can send data packets to optical communication devices. Figure 1 The same applies to room 2. For example, network devices communicate with each terminal via WLAN, and network devices are interconnected via fiber optic cables.
[0063] In some possible scenarios, the terminal may also employ optical communication technology and radio access network (RAN) equipment. Figure 1 (Not shown in the image) Establish a communication connection and access optical communication equipment.
[0064] The first network device 20 or the second network device 30 is connected to the optical communication device via wireless or wired means. The embodiments of this application do not limit the number of terminal devices, network devices, and optical communication devices included in the communication system 10.
[0065] This application does not limit the application scenarios of the communication system 10. For example, the communication system 10 can be applied in scenarios such as Fiber to the Home (FTTH), Fiber to the Room (FTTR), optical distribution network (ODN), optical line terminal (OLT), optical network unit (ONU), wireless access point (AP), power over ethernet (POE) system, or optical fiber composite low-voltage cable (OPLC).
[0066] This embodiment uses a whole-house fiber optic scenario as an example to illustrate the bandwidth allocation method of the communication system 10 provided in this application. A whole-house fiber optic scenario can be achieved through FTTR technology. FTTR refers to a networking technology that uses optical fiber instead of network cables, lays optical fiber to every room, deploys optical network equipment to interconnect with the home gateway, and combines wireless communication to ensure whole-house network coverage.
[0067] Figure 1 In the example, the first network device 20 and the second network device 30 are connected via an optical fiber assembly 40. Exemplarily, the optical fiber assembly 40 includes a connector 41 and an optical fiber 100. One end of the optical fiber 100 is connected to the connector 41. The first network device 20 is connected to the connector 41. The second network device 30 is connected to the end of the optical fiber 100 away from the connector 41.
[0068] For example, connector 41 may be an optical fiber connector. In some embodiments, the optical cable assembly 40 includes two connectors 41, which are respectively connected to the opposite ends of the optical cable 100. One connector 41 is connected to the first network device 20, and the other connector 41 is connected to the second network device 30.
[0069] In some embodiments, the server and the first network device 20 may also be connected via an optical fiber assembly 40.
[0070] The reliability of the optical cable 100 directly affects the communication quality between the first network device 20 and the second network device 30. The optical cable 100 provided in this embodiment has superior reliability, which is beneficial to improving the communication quality between the first network device 20 and the second network device 30, thereby improving the communication quality of the communication system 10.
[0071] Figure 2 This is a schematic diagram of the structure of an optical cable 100 provided in an embodiment of this application. Please refer to... Figure 2 The optical cable 100 includes a sheath 110, an optical waveguide 120, a reinforcing member 160, an elastic layer 130, and a first adhesive layer 140. The sheath 110 surrounds the outer peripheral surface of the optical waveguide 120. The first adhesive layer 140 is connected to the surface of the elastic layer 130 away from the sheath 110. The sheath 110 includes a first surface 101 and a second surface 102, with a first tear groove 103 provided on the first surface 101. The elastic layer 130 and the second surface 102 are connected. The first adhesive layer 140 is connected to the surface of the elastic layer 130 away from the sheath 110. The sheath 110 surrounds the outer peripheral surface of the reinforcing member 160, and the extending direction of the reinforcing member 160 is consistent with the extending direction of the optical waveguide 120. In other words, the extending direction of the reinforcing member 160 is parallel to the extending direction of the optical waveguide 120.
[0072] Thus, the sheath 110 can protect the optical waveguide 120 from contamination by moisture or dust, and also reduce the impact of external forces such as collisions on the optical waveguide 120. The optical cable 100 can be installed on the mounting surface through the first adhesive layer 140. When the optical cable 100 is bent, the optical waveguide 120 also bends accordingly. Internal stress or bending stress will be generated at the bending part of the optical waveguide 120. The buffering effect of the elastic layer 130 can release this internal stress or bending stress, effectively improving the problem of damage to the optical waveguide 120 caused by this internal stress or bending stress, and improving the reliability of the optical cable 100. The reinforcing member 160 can improve the mechanical strength of the optical cable 100 and improve the problem of tearing or breaking of the optical cable 100 caused by external forces. In addition, the reinforcing member 160 is also helpful in improving the problem of damage to the optical waveguide 120 caused by high bending stress of the optical cable 100. During the connection of the optical cable 100, the first tear groove 103 can assist in peeling off the sheath 110.
[0073] For example, the aforementioned mounting surface can be the ground, wall, or desktop, depending on the arrangement of the optical cable 100.
[0074] For example, in scenarios where the optical cable 100 is connected to a desktop or wall, the optical cable 100 needs to be bent at the corner of the desktop or wall. The elastic layer 130 can mitigate the impact on the performance of the optical waveguide 120 caused by the bending of the optical cable 100, and the elastic layer 130 basically does not introduce cohesive failure. During assembly, the optical cable 100 provided in this embodiment does not require additional corner protectors or corner protection components, or the elastic layer 130 can be regarded as a corner protector or corner protection component, which helps to reduce the assembly cost of the optical cable 100. In scenarios where the optical cable 100 needs to be moved, the first adhesive layer 140 is separated from the mounting surface, leaving less residue on the mounting surface and minimizing damage to the aesthetics of the mounting surface.
[0075] The aforementioned outer peripheral surface of the optical waveguide 120 refers to the surface along the circumference of the optical waveguide 120. Taking a cylindrical shape as an example, the outer peripheral surface of the optical waveguide 120 is a cylindrical surface. The descriptions of the other outer peripheral surfaces in this text are similar.
[0076] In some embodiments of this application, the elastic layer 130 does not cover the first tear groove 103. Thus, in scenarios where the optical waveguide 120 requires welding, the sheath 110 can be torn from the first tear groove 103 to expose the optical waveguide 120, facilitating welding of the optical waveguide 120. The fact that the elastic layer 130 does not cover the first tear groove 103 allows for better separation of the optical waveguide 120 from the sheath 110.
[0077] The first tear groove 103 extends from one end of the optical cable 100 to the other end. In some embodiments, the first tear groove 103 is a V-shaped groove. In other embodiments, the first tear groove 103 can be other shapes, such as a U-shaped groove or an irregularly shaped groove structure.
[0078] In some embodiments of this application, the second surface 102 is provided with a second tear groove 104. Thus, during the process of connecting the elastic layer 130 and the sheath 110, the first surface 101 and the second surface 102 of the sheath 110 can be distinguished without distinguishing them, reducing the time spent on the distinction process and reducing the manufacturing cost.
[0079] exist Figure 2 In some embodiments, the second surface 102 and the first surface 101 are disposed opposite to each other. In some embodiments of this application, the second surface 102 and the first surface 101 may be disposed adjacent to each other.
[0080] In some embodiments of this application, the second surface 102 and the first surface 101 have the same shape. The first tear groove 103 and the second tear groove 104 have the same shape.
[0081] It is understood that in some embodiments of this application, the second tear groove 104 is not necessary and may be omitted.
[0082] In some embodiments of this application, the first surface 101 is a rough surface. Thus, the first surface 101 can scatter light, and during user observation, the first surface 101 has a matte texture. In some embodiments of this application, the first surface 101 can be a smooth surface.
[0083] In some embodiments of this application, the second surface 102 is a rough surface. This results in a stronger bond between the elastic layer 130 and the second surface 102, making them less prone to separation. In some embodiments of this application, the second surface 102 can be a smooth surface.
[0084] Figure 2 In the example, the sheath 110 also includes a third surface 105 connecting the first surface 101 and the second surface 102. The first surface 101 and the third surface 105 have a smooth transition. In other words, a chamfer is provided between the first surface 101 and the third surface 105. This prevents the connection between the first surface 101 and the third surface 105 from being too sharp.
[0085] The second surface 102 and the third surface 105 have a smooth transition. In other words, a chamfer is provided between the second surface 102 and the third surface 105. This avoids the junction between the second surface 102 and the third surface 105 being too sharp.
[0086] This application does not limit the material of the sheath 110. Exemplarily, the material of the sheath 110 includes low-smoke halogen-free materials (LSZH), polyvinyl chloride (PVC), polyethylene (PE), polytetrafluoroethylene (PTFE), ethylene-tetrafluoroethylene (ETFE), thermoplastic polyurethanes (TPU), polyamide, thermoplastic polyamide elastomer (TPAE), polycarbonate (PC), flexible siloxane-polyetherimide copolymer, silicone materials, fluorosilicone composite materials, polypropylene materials, polyester materials, or polyester elastomer materials. In some embodiments, the material of the sheath 110 may include two or more of the aforementioned materials.
[0087] In some embodiments, the sheath 110 is made of a transparent material. In other words, the sheath 110 is a transparent sheath. This transparent material may be, for example, polymethyl methacrylate (PMMA), polycarbonate (PC), polystyrene (PS), thermoplastic polyurethanes (TPU), or fluoroplastics. The sheath 110, made of a transparent material, has low visibility, which helps to reduce the visibility of the optical cable 100, making the cabling of the optical cable 100 simpler.
[0088] In some embodiments of this application, the sheath 110 may be made of a non-transparent material. For example, the sheath 110 may be made of white, black, or other colored rubber or plastic. Alternatively, the sheath 110 may be made of low smoke zero halogen (LSZH) material.
[0089] The embodiments of this application do not limit the external shape of the optical cable 100. The optical cable 100 can be a round cable, a butterfly cable, or a structure that can be cut and separated, depending on the usage scenario of the optical cable 100.
[0090] Figure 2 In the example, the sheath 110 has a layered structure. In other words, the cross-section of the sheath 110 is relatively flat. The cross-section of the sheath 110 is perpendicular to the length direction of the optical cable 100. Thus, after the optical cable 100 is connected to the mounting surface, the fit between the optical cable 100 and the mounting surface is high, and the thickness of the optical cable 100 protruding from the mounting surface is small, which can increase the aesthetics of the optical cable 100.
[0091] Figure 2 In the example, the elastic layer 130 is connected to one side of the sheath 110 of the layered structure in the thickness direction. Therefore, the provision of the elastic layer 130 increases the dimension of the optical cable 100 along the thickness direction of the layered structure, while the provision of the elastic layer 130 has a relatively small impact on the dimension of the optical cable 100 along the width direction of the layered structure.
[0092] In some embodiments, the cross-section of the sheath 110 may be elliptical, quadrilateral, or an irregular shape that is flat.
[0093] Exemplarily, the material of the elastic layer 130 includes an elastic material. In some embodiments, the material of the elastic layer 130 includes, for example, polyethylene terephthalate (PET), polypropylene (PP), or nonwoven fabric. In some embodiments, the material of the elastic layer 130 includes plastic, foam, foam adhesive with a cellular structure, or rubber.
[0094] The material of the elastic layer 130 may include porous materials, foamed materials, or flexible materials. Exemplarily, it includes polyacrylates, polyurethanes, silicone materials, styrene-based thermoplastic elastomers, polyethylene, ethylene-vinyl acetate copolymer (EVA), silicone, polystyrene, or ternary rubber. Styrene-based thermoplastic elastomers may, for example, be styrene-isoprene-styrene block copolymers (SIS), styrene-ethylene-butylene-styrene block copolymers (SEBS), or polystyrene-butadiene-polystyrene triblock copolymers (SBS).
[0095] In some embodiments of this application, the material of the elastic layer 130 may include two or more of the aforementioned materials.
[0096] The embodiments of this application do not limit the preparation process of the elastic layer 130. For example, the elastic layer 130 can be prepared by extrusion molding or integral foaming technology.
[0097] In some embodiments of this application, the material of the elastic layer 130 may further include a flame retardant with a mass fraction of 10%-45%. The flame retardant rating of the elastic layer 130 may be V0, V1, or V2, etc. Providing the elastic layer 130 with flame retardant properties is beneficial for improving the flame retardancy of the optical cable 100. Exemplarily, the mass fraction of the flame retardant in the material of the elastic layer 130 may be 10%, 15%, 20%, 25%, 30%, 32%, 38%, 40%, or 45%, etc.
[0098] In some embodiments of this application, the thickness d of the elastic layer 130 is 0.05 mm to 1 mm. Thus, the elastic layer 130 has better cushioning performance and has a smaller impact on the volume of the optical cable 100. Furthermore, during bending of the optical cable 100, the elastic layer 130 can increase the minimum bending radius of the optical cable 100. The aforementioned minimum bending radius refers to the radius at which the optical cable 100 can be safely bent within any given range.
[0099] For example, the thickness d of the elastic layer 130 can be 0.05mm, 0.06mm, 0.08mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1mm, etc.
[0100] In some embodiments, the thickness of the elastic layer 130 is uniform; in other words, the thickness d of the elastic layer 130 is equal at all locations along the length of the optical cable 100. In some embodiments, the thickness of the elastic layer 130 may be non-uniform. For example, the thickness d of the elastic layer 130 may not be exactly the same at different locations along the length of the optical cable 100.
[0101] In some embodiments, the thickness d of the elastic layer 130 may be less than 0.05 mm, or the thickness d of the elastic layer 130 may be greater than 1 mm.
[0102] In some embodiments, the elastic layer 130 surrounds the entire outer peripheral surface of the sheath 110. Thus, during the bending of the optical cable 100 in different directions, the buffering effect of the elastic layer 130 can effectively protect the optical waveguide 120.
[0103] In some embodiments, the elastic layer 130 covers a portion of the outer peripheral surface of the sheath 110. During the assembly of the optical cable 100, the elastic layer 130 is located between the optical cable 100 and the wall or tabletop, thus providing better protection for the optical waveguide 120. The elastic layer 130 uses less material, which can save costs while reducing the outer diameter of the optical cable 100.
[0104] The first adhesive layer 140 is disposed on the surface of the elastic layer 130 away from the sheath 110. During the preparation of the first adhesive layer 140, the elastic layer 130 can provide support for cutting and die-cutting the first adhesive layer 140.
[0105] The material of the first adhesive layer 140 is not limited in the embodiments of this application. For example, the material of the first adhesive layer 140 may include an adhesive.
[0106] Exemplarily, the material of the first adhesive layer 140 includes polyacrylate pressure-sensitive adhesive, polyurethane pressure-sensitive adhesive, rubber-based pressure-sensitive adhesive, silicone pressure-sensitive adhesive, polyurethane acrylate pressure-sensitive adhesive, epoxy resin modified acrylate pressure-sensitive adhesive, UV (Ultraviolet) curable acrylate pressure-sensitive adhesive, UV curable polyurethane pressure-sensitive adhesive, UV curable elastomer pressure-sensitive adhesive, moisture-curing polyurethane, hot melt adhesive, pressure-sensitive adhesive, moisture-curing type pressure-sensitive adhesive, moisture-curing silicone material, or moisture-curing cyanoacrylate pressure-sensitive adhesive, etc. In some embodiments, the material of the first adhesive layer 140 may include two or more of the aforementioned materials, such as moisture-curing polyurethane, moisture-curing silicone material, or moisture-curing cyanoacrylate pressure-sensitive adhesive, etc. Thus, the adhesive performance of the first adhesive layer 140 is better. Increasing the peel force of the first adhesive layer 140 can increase the connection strength between the optical cable 100 and the mounting surface, preventing the optical cable 100 from separating from the mounting surface.
[0107] This application embodiment does not limit the thickness of the first adhesive layer 140. For example, the thickness of the first adhesive layer 140 is 0.05mm-0.5mm. Thus, the first adhesive layer 140 has strong adhesive strength, and its arrangement has minimal impact on the dimensions of the optical cable 100. For example, the thickness of the first adhesive layer 140 can be 0.05mm, 0.08mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.4mm, or 0.5mm, etc.
[0108] In some embodiments of this application, the first adhesive layer 140 covers the entire surface of the elastic layer 130 away from the sheath 110. Thus, during the assembly of the optical cable 100, the optical cable 100 and the mounting surface are connected by the first adhesive layer 140. The first adhesive layer 140 has a large area, resulting in a high connection strength between the optical cable 100 and the mounting surface, making it less likely for the optical cable 100 to fall off.
[0109] In some embodiments of this application, the first adhesive layer 140 covers a portion of the surface of the elastic layer 130 away from the sheath 110. This reduces the amount of the first adhesive layer 140 used, thus saving costs.
[0110] This application does not limit the type of optical waveguide 120. In some embodiments, the optical waveguide 120 can be an integrated optical waveguide, which can be a planar (thin film) dielectric waveguide or a strip dielectric waveguide. In some embodiments, the optical waveguide 120 can be a cylindrical optical waveguide, which can also be called an optical fiber.
[0111] Figure 3 The diagram shows the structures of two optical waveguides 120 provided in the embodiments of this application. Figure 3 Figure (1) illustrates a schematic diagram of the structure of an optical waveguide 120. The optical waveguide 120 includes a fiber core 121 and a cladding 122, with the cladding 122 covering the outer peripheral surface of the fiber core 121. The refractive index of the fiber core 121 is greater than that of the cladding 122. The cladding 122 can reflect the optical signal transmitted within the fiber core 121, enclosing the optical signal within the fiber core 121 for transmission and protecting the fiber core 121, thus reducing optical signal loss. In addition, the fiber core 121 and the cladding 122 also have good flexibility, giving the optical cable 100 superior bending performance.
[0112] Figure 3 In Figure (1), the core 121 and cladding 122 are coaxial columnar structures. The optical waveguide 120 is a single-core optical fiber.
[0113] The materials of the core 121 and the cladding 122 are not limited in this application embodiment. In some embodiments, the core 121 is made of silicon dioxide (SiO2), and the cladding 122 is doped silicon dioxide (SiO2), and the doping element can be, for example, pentavalent elements such as nitrogen and phosphorus.
[0114] In some embodiments, the core 121 may be made of silicon dioxide, doped silicon dioxide, polycarbonate, polymethyl methacrylate, polyacrylate copolymer, fluorinated olefin polymer, or fluorinated methyl methacrylate, etc. The cladding 122 may be made of silicon dioxide, doped silicon dioxide, fluorinated olefin polymer, fluorinated methyl methacrylate, polycarbonate, polymethyl methacrylate, or polyacrylate copolymer, etc.
[0115] This application does not limit the dimensions of the core 121 and the cladding 122. Exemplarily, the diameter of the core 121 can be 6 μm (micrometers) to 20 μm. For example, the diameter of the core 121 can be 6 μm, 7 μm, 9 μm, 10 μm, 12 μm, 15 μm, 16 μm, 18 μm, or 20 μm, etc. The diameter of the cladding 122 can be 100 μm to 140 μm. For example, the diameter of the cladding 122 can be 100 μm, 105 μm, 110 μm, 120 μm, 125 μm, 130 μm, 135 μm, 138 μm, or 140 μm, etc.
[0116] In some embodiments of this application, the optical waveguide 120 may further include a coating layer that surrounds the outer peripheral surface of the cladding 122 and can protect the cladding 122.
[0117] It is understood that in some embodiments of this application, the cladding 122 is not necessary, and the optical waveguide may not have the cladding 122. In some embodiments, the coating layer is also not necessary, and the optical waveguide may not have the coating layer.
[0118] Figure 3 Figure (2) illustrates another schematic diagram of the structure of optical waveguide 120. Figure 3 (2) diagram and Figure 3 The differences in Figure (1) include: the number of cores 121 is different, and the shape of the cladding 122 is different.
[0119] Figure 3 In Figure (2), the cladding 122 is a strip structure, and the optical waveguide 120 includes multiple fiber cores 121, all of which are disposed within the cladding 122. The optical waveguide 120 can be regarded as a ribbon fiber, and each fiber core 121 within the ribbon fiber can transmit optical signals. The optical waveguide 120 can transmit multiple optical signals.
[0120] The embodiments of this application do not limit the number of fiber cores 121 in the fiber belt. For example, the number of fiber cores 121 can be two, three, four, five, six, eight, twelve or more.
[0121] Figure 3 For the remaining structures in (2) of the diagram, please refer to [the diagram]. Figure 3 The description in Figure (1) will not be repeated here.
[0122] Please return Figure 2 ,exist Figure 2 In the example, the optical cable 100 may also include a release film 150, which is attached to the surface of the first adhesive layer 140 facing away from the elastic layer 130. In this way, the release film 150 can protect the surface of the first adhesive layer 140 facing away from the elastic layer 130, preventing dust or moisture from contaminating the surface of the first adhesive layer 140 facing away from the elastic layer 130.
[0123] Figure 2 In the example, the release film 150 covers the entire surface of the first adhesive layer 140 away from the elastic layer 130.
[0124] During the assembly of the optical cable 100, the release film 150 and the first adhesive layer 140 can be separated before the optical cable 100 is assembled.
[0125] It is understood that in some embodiments of this application, the release film 150 is not necessary, and the optical cable 100 may not be provided with the release film 150.
[0126] In some embodiments, such as Figure 2 As shown, the reinforcing member 160 is embedded within the sheath 110. In other words, the sheath 110 also surrounds the outer periphery of the reinforcing member 160. This improves the aesthetics of the optical cable 100, enhances its integration, and reduces the space occupied by the optical cable 100.
[0127] The shape of the reinforcing member 160 is not limited in this embodiment. For example, the reinforcing member 160 can be a flat elongated structure, or it can be a cylindrical elongated structure, etc. The extension path of the reinforcing member 160 can be a straight line or a curve.
[0128] In some embodiments of this application, there may be multiple reinforcing members 160, which are arranged along the length of the optical cable 100. In other words, the length of one reinforcing member 160 may be less than the length of the optical cable 100. Multiple reinforcing members 160 are provided along the length of the optical cable 100.
[0129] This application does not limit the material of the reinforcing member 160. Exemplarily, the materials of the reinforcing member 160 include glass yarn, aramid fiber, optical fiber, steel wire, adhesive-backed steel wire, coated steel wire, galvanized steel wire, tin-plated steel wire, nickel-plated steel wire, ultra-high molecular weight polyethylene (UHMWPE), basalt fiber, carbon fiber, polyimide fiber, polyphenylene sulfide fiber, polyarylate fiber, polyester fiber, polyp-phenylenebenzobisthiazole (PBO) fiber, silicon carbide (SiC) fiber, glass fiber reinforced plastics (GFRP), and Kevlar fiber reinforced plastics (Kevlar Fiber). Reinforced plastics (KFRP), carbon fiber-glass fiber composite reinforcing fibers, aramid-glass fiber composite reinforcing fibers, polyester fiber-glass fiber composite reinforcing fibers, aramid-carbon fiber composite reinforcing fibers, polyester fiber-aramid fiber composite reinforcing fibers, polyester fiber-ultra-high molecular weight polyethylene fiber composite reinforcing fibers, aramid-ultra-high molecular weight polyethylene fiber composite reinforcing fibers, glass fiber-ultra-high molecular weight polyethylene fiber composite reinforcing fibers, carbon fiber-glass fiber-aramid composite reinforcing fibers, carbon fiber-glass fiber-polyester fiber composite reinforcing fibers, or carbon fiber-glass fiber-ultra-high molecular weight polyethylene fiber composite reinforcing fibers, etc. In some embodiments of this application, the material of the reinforcing member 160 may include two or more of the aforementioned materials.
[0130] In some embodiments of this application, the reinforcing member 160 is made of a transparent material. For example, the reinforcing member 160 may be made of silica, glass yarn, glass fiber reinforced plastic, or aramid fiber reinforced optical cable core. The aforementioned glass yarn is also known as voile. Thus, the reinforcing member 160 has low visibility. In embodiments where the sheath 110 is made of a transparent material, both the reinforcing member 160 and the sheath 110 have high light transmittance, which is beneficial to the aesthetics of the optical cable 100.
[0131] The reinforcing member 160 in the transparent optical cable 100 can be made of glass. Specifically, the reinforcing member 160 may include a glass rod, glass filament, glass yarn, or glass fiber. The glass rod, glass filament, glass yarn, or glass fiber are all transparent, which helps reduce the visibility of the invisible optical cable. Furthermore, since the glass rod, glass yarn, or glass fiber are all made of glass, they are easy to manufacture together with optical fibers, improving manufacturing efficiency.
[0132] In addition, the diameter of the glass rod, glass filament, or glass fiber can be larger than the diameter of the communication optical fiber, which can enhance the tensile strength of the invisible optical cable.
[0133] In addition, the glass rods, glass yarns, or glass fibers in the transparent optical cable 100 have a coating on their surfaces. These coated glass rods, glass yarns, or glass fibers adhere more tightly to the transparent sheath, resulting in better tensile strength and bending resistance. In some embodiments, the coating is an acrylic resin material.
[0134] In some embodiments of this application, the material of the reinforcing member 160 may be an opaque material, or the material of the reinforcing member 160 may be a material with low transparency. For example, the reinforcing member 160 may be a metal wire, a coated metal wire, or a plated metal wire, such as steel wire, copper wire, aluminum wire, galvanized steel wire, or tin-plated steel wire, etc.
[0135] The embodiments of this application do not limit the number of reinforcing members 160. Figure 2 In the example, the number of reinforcing members 160 is two. In other embodiments of this application, the number of reinforcing members 160 may be one, three, four or more.
[0136] Figure 2 In the middle, the optical waveguide 120 and the two reinforcing members 160 are arranged in a row. The arrangement direction of the optical waveguide 120 and the reinforcing members 160 is parallel to the width direction of the first adhesive layer 140. In this way, it is beneficial for the optical cable 100 to have a flattened structure, and when the optical cable 100 is connected to the mounting surface, the optical cable 100 and the mounting surface fit more closely.
[0137] In embodiments where the sheath 110 has a layered structure, the optical waveguide 120 and multiple reinforcing members 160 are arranged along the width direction of the layered structure. The width direction of this layered structure is perpendicular to the length direction of the optical cable 100, and the width direction is also perpendicular to the thickness direction of the layered structure. Thus, the optical waveguide and multiple reinforcing members 160 have minimal impact on the thickness direction of the sheath 110. Along the thickness direction of the sheath 110, the optical cable 100 is smaller in size, and when connected to the mounting surface, the optical cable 100 protrudes less from the mounting surface, which helps improve the aesthetics of the optical cable 100 wiring.
[0138] In some embodiments of this application, the positional relationship between the elastic layer 130 and the sheath 110 is not limited to... Figure 2 As shown.
[0139] Figure 4 This is a schematic diagram of another optical cable 100 provided in an embodiment of this application. Figure 4 and Figure 2 The differences include the different positional relationship between the elastic layer 130 and the sheath 110.
[0140] Figure 4In the example, the sheath 110 has a layered structure, and the cross-section of the sheath 110 is flat. The cross-section of the sheath 110 is perpendicular to the length direction of the optical cable 100. The elastic layer 130 is connected to one side of the layered structure along the width direction of the layered structure.
[0141] Thus, the provision of the elastic layer 130 increases the dimension of the optical cable 100 along the width direction of the sheath 110, while having a smaller impact on the optical cable 100 along the thickness direction of the sheath 110.
[0142] Figure 4 In the example, the dimension of the elastic layer 130 along the thickness direction of the sheath 110 is less than or equal to the dimension of the optical cable 100 along the thickness direction of the sheath 110. Thus, the provision of the elastic layer 130 does not increase the dimension of the optical cable 100 along the thickness direction of the sheath 110, which is beneficial to the simplicity of the optical cable 100 wiring.
[0143] Figure 4 In the example, the second surface 102 and the first surface 101 are arranged adjacent to each other. In other words, the surface connected to the elastic layer 130 and the surface where the first tear groove 103 is provided are adjacent to each other.
[0144] Figure 4 In the example, the sheath 110 further includes a fourth surface 107, which is disposed opposite to the first surface 101, and a third tear groove 106 is disposed on the fourth surface 107. The elastic layer 130 does not cover the third tear groove 106. Thus, Figure 4 In the example, the fourth surface 107 of the sheath 110 has the same shape as the first surface 101. This can reduce the cost of connecting the sheath 110 and the elastic layer 130.
[0145] Figure 4 For the remaining structures, please refer to Figure 2 The description in the text.
[0146] Figure 5 This is a schematic diagram of the structure of another optical cable 100 provided in an embodiment of this application. Figure 5 and Figure 2 The differences include: the shape of the sheath 110 is different. Figure 5 In the example, the cross-section of the sheath 110 is triangular, and the cross-section of the sheath 110 is perpendicular to the length direction of the optical cable 100. In other words, the sheath 110 is triangular prism-shaped.
[0147] Figure 5 In the example, the first surface 101 and the second surface 102 are adjacent.
[0148] Figure 5In the example, the optical waveguide 120 and the two reinforcing members 160 are arranged in two rows, with the optical waveguide 120 and the two reinforcing members 160 respectively positioned close to the triangle of the triangular prism. In this way, the dimensions of the optical cable 100 are more uniform in all directions.
[0149] Figure 5 In the example, the elastic layer 130 covers one side surface of the triangular prism-shaped sheath 110. In some embodiments, the elastic layer 130 may cover all side surfaces of the triangular prism-shaped sheath 110.
[0150] Figure 6 This is a schematic diagram of the structure of another optical cable 100 provided in an embodiment of this application. Figure 6 and Figure 2 The differences include: the optical cable 100 may also include a second adhesive layer 170, which is located between the elastic layer 130 and the sheath 110. In this way, the elastic layer 130 and the sheath 110 are connected by the second adhesive layer 170, which can increase the connection strength between the elastic layer 130 and the sheath 110.
[0151] In some embodiments, the second adhesive layer 170 covers the entire surface of the elastic layer 130 near the sheath 110. This provides strong adhesive strength, preventing delamination between the elastic layer 130 and the sheath 110. In some embodiments, the second adhesive layer 170 covers only a portion of the elastic layer 130 near the sheath 110. This reduces the amount of second adhesive layer 170 used, thus lowering costs.
[0152] The material of the second adhesive layer 170 can be found in the description of the first adhesive layer 140 above, and will not be repeated here.
[0153] In embodiments of this application, the second adhesive layer 170 is not necessary, and the optical cable 100 may not have the second adhesive layer 170. For example, the elastic layer 130 may be made of an adhesive, and the elastic layer 130 may be connected to the sheath 110 via the adhesive within the elastic layer 130. For example, the elastic layer 130 may be made of an elastic foam adhesive.
[0154] Figure 6 For the remaining structures, please refer to Figure 2 The description in the text. It is understandable that... Figure 4 and Figure 5 The examples shown may also include Figure 6 The second adhesive layer 170 is shown in the diagram. Further details will not be provided here.
[0155] In some embodiments of this application, the optical cable 100 may include two or more elastic layers 130. The optical cable 100 may include two or more first adhesive layers 140.
[0156] Figure 7This is a schematic diagram of the structure of an optical cable 100 including multiple elastic layers 130, provided for an embodiment of this application. Please refer to... Figure 7 An elastic layer 130 is provided between two adjacent first adhesive layers 140.
[0157] Figure 7 In the example, the optical cable 100 includes two first adhesive layers 140 and two elastic layers 130. One first adhesive layer 140 is located between the two elastic layers 130, and the other first adhesive layer 140 is located between the elastic layer 130 and the release film 150.
[0158] Figure 7 In the example, the materials and thicknesses of the two elastic layers 130 can be the same or different. Similarly, the materials and thicknesses of the two first adhesive layers 140 can be the same or different. This application embodiment does not impose any limitations on this.
[0159] In other embodiments of this application, the optical cable 100 may include three or more elastic layers 130. The optical cable 100 may also include three or more first adhesive layers 140.
[0160] Figure 7 For the remaining structures, please refer to Figure 2 The description in the text. It is understandable that... Figure 4 , Figure 5 and Figure 6 The example shown may also include two or more elastic layers 130 and two or more first adhesive layers 140.
[0161] In some embodiments of this application, the sheath 110 may be of other shapes.
[0162] Figure 8 This is a schematic diagram of another optical cable 100 provided in an embodiment of this application. Figure 8 and Figure 2 The differences include: the shape of the sheath 110 is different. Figure 8 In the example, the first tear groove and the second tear groove are not necessary, and the sheath 110 may not have the first tear groove and the second tear groove.
[0163] Figure 8 In this example, the sheath 110 includes a substrate 111 and a cylindrical body 112, which are connected. The cylindrical body 112 surrounds the outer peripheral surface of the optical waveguide 120, and the elastic layer 130 is connected to the surface of the substrate 111 away from the cylindrical body 112. Thus, the cylindrical body 112 and the optical waveguide 120 protrude from the substrate 111. The substrate 111 provides support for the cylindrical body 112 and the optical waveguide 120, and the stress on the substrate 111 and the cylindrical body 112 can be buffered by the elastic layer 130, reducing the impact of stress on the optical waveguide 120.
[0164] In the embodiments of this application, the substrate 111 and the cylinder 112 are connected as a single molded part. The connection strength between the substrate 111 and the cylinder 112 is high. In some embodiments, the substrate 111 and the cylinder 112 are separately disposed, and the substrate 111 and the cylinder 112 are connected by an adhesive layer or a snap fastener.
[0165] In the embodiments of this application, the cylindrical body 112 can be a circular or elliptical cylindrical structure, and this application does not limit this. The width of the substrate 111 can be greater than, less than or equal to the diameter of the cylindrical body 112, and this application does not limit this.
[0166] In embodiments where the optical cable 100 includes a reinforcing member 160, the reinforcing member 160 is connected to the substrate 111, or the reinforcing member 160 is connected to the cylinder 112. In some embodiments, the reinforcing member 160 is embedded within the cylinder 112.
[0167] In the embodiments of this application, the substrate 111 has a rectangular cross-section; in other embodiments, the cross-section of the substrate 111 may be elliptical or irregular in shape. The cross-section of the substrate 111 is perpendicular to the length direction of the optical cable 100.
[0168] Figure 8 For the remaining structures, please refer to Figure 2 The description in the text. It is understandable that... Figure 8 The examples shown may also include Figure 6 The second adhesive layer 170 is shown. It will not be described further here. Additionally, Figure 8 The optical cable 100 may also include multiple elastic layers 130 and multiple first adhesive layers 140. The relationship between the multiple elastic layers 130 and the multiple first adhesive layers 140 is described above. Figure 7 The description in the text.
[0169] In some embodiments of this application, the cylindrical body 112 and the optical waveguide 120 may be multiple.
[0170] Figure 9 This is a schematic diagram of the structure of a sheath 110 including a cylindrical body 112, provided for an embodiment of this application. Figure 9 and Figure 8 The differences include: the sheath 110 includes multiple cylinders 112, and the optical cable 100 includes multiple optical waveguides 120.
[0171] Figure 9 In this configuration, each cylindrical body 112 is connected to the same side of the substrate 111. One cylindrical body 112 surrounds the outer peripheral surface of at least one optical waveguide 120. Thus, multiple optical waveguides 120 are protected by multiple cylindrical bodies 112, which can increase the protective performance of the sheath 110 for the optical waveguides 120.
[0172] For example, the number of optical waveguides 120 within a cylindrical body 112 can be one, two, or three. The number of optical waveguides 120 within the cylindrical body 112 can be the same or different.
[0173] In embodiments where the optical cable 100 includes a reinforcing member 160, the reinforcing member 160 is connected to the cylindrical body 112, or the reinforcing member 160 may be connected to the substrate 111. In embodiments where the reinforcing member 160 is connected to the cylindrical body 112, the reinforcing member 160 may be provided in a portion of the cylindrical bodies 112, or the reinforcing member 160 may be provided in all of the cylindrical bodies 112.
[0174] Furthermore, the multiple optical waveguides 120 can be of the same type or different types. The multiple optical waveguides 120 can include one or more of the following: single-core optical fiber, multi-core optical fiber, or ribbon fiber.
[0175] In some transparent optical cable embodiments, both the optical waveguide 120 and the reinforcing member 160 are embedded within the sheath 110 and in direct contact with it. Embedding the reinforcing member 160 within the sheath enhances the tensile strength of the optical cable.
[0176] In some embodiments, Figure 9 The optical cable 100 may also include multiple elastic layers 130 and multiple first adhesive layers 140. The relationship between the multiple elastic layers 130 and the multiple first adhesive layers 140 is described above. Figure 7 The description in the text.
[0177] Figure 9 Please refer to the remaining descriptions. Figure 8 This will not be elaborated upon here.
[0178] In embodiments where the optical cable 100 includes multiple cylindrical bodies 112 and multiple optical waveguides 120, the reinforcing member 160 is not necessary and may be omitted.
[0179] Figure 10 This is a schematic diagram of another structure of a sheath 110 including a cylindrical body 112, provided for an embodiment of this application. Figure 10 and Figure 9 The differences include: fiber optic cable 100 does not include Figure 9 The reinforcing member 160 shown.
[0180] Thus, compared with setting reinforcements, not setting reinforcements can reduce the diameter of the cylinder 112 and reduce the space occupied by the optical cable 100.
[0181] In some embodiments, Figure 10 The optical cable 100 may also include multiple elastic layers 130 and multiple first adhesive layers 140. The relationship between the multiple elastic layers 130 and the multiple first adhesive layers 140 is described above. Figure 7 The description in the text.
[0182] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0183] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. An optical cable (100), characterized in that, The optical cable (100) is transparent, and the optical cable (100) includes: Optical waveguide (120); Sheath (110), the sheath (110) surrounds the outer peripheral surface of the optical waveguide (120), the sheath (110) includes a first surface (101) and a second surface (102), the first surface (101) is provided with a first tear groove (103). An elastic layer (130) is connected to the second surface (102); A first adhesive layer (140) is connected to the surface of the elastic layer (130) away from the sheath (110); and A reinforcing member (160) is provided, wherein the sheath (110) surrounds the outer peripheral surface of the reinforcing member (160), and the extending direction of the reinforcing member (160) is consistent with the extending direction of the optical waveguide (120).
2. The optical cable (100) according to claim 1, characterized in that, The elastic layer (130) does not cover the first tear groove (103).
3. The optical cable (100) according to claim 1, characterized in that, The second surface (102) is provided with a second tear groove (104).
4. The optical cable (100) according to claim 3, characterized in that, The elastic layer (130) covers the second tear groove (104).
5. The optical cable (100) according to claim 1, characterized in that, The first surface (101) and the second surface (102) are two surfaces of the sheath (110) that are arranged opposite to each other.
6. The optical cable (100) according to any one of claims 1-5, characterized in that, The sheath (110) further includes a third surface (105) connecting the first surface (101) and the second surface (102), with a smooth transition from the first surface (101) to the third surface and a smooth transition from the second surface (102) to the third surface (105).
7. The optical cable (100) according to any one of claims 1-5, characterized in that, The first surface (101) and the second surface (102) are two adjacent surfaces of the sheath (110).
8. The optical cable (100) according to any one of claims 1-5, characterized in that, The first surface (101) or the second surface (102) is a rough surface.
9. The optical cable (100) according to any one of claims 1-5, characterized in that, The optical cable (100) further includes a second adhesive layer (170) located between the elastic layer (130) and the sheath (110).
10. The optical cable (100) according to any one of claims 1-5, characterized in that, The reinforcing member (160) is made of a transparent material.
11. The optical cable (100) according to claim 10, characterized in that, The materials of the reinforcing member (160) include: glass yarn, glass fiber, aramid, ultra-high molecular weight polyethylene, glass fiber reinforced plastic or Kevlar fiber reinforced plastic.
12. The optical cable (100) according to claim 10, characterized in that, The reinforcing member (160) is a glass rod, glass fiber, or glass filament.
13. The optical cable (100) according to claim 12, characterized in that, The diameter of the glass rod, glass filament, or glass fiber is larger than the diameter of the optical waveguide.
14. The optical cable (100) according to claim 12 or 13, characterized in that, The surface of the glass rod, glass fiber, or glass filament has a coating.
15. The optical cable (100) according to claim 14, characterized in that, The coating is made of acrylic resin.
16. The optical cable (100) according to any one of claims 1-5, characterized in that, The optical waveguide (120) and the reinforcing member (160) are both embedded in the sheath (110) and in direct contact with the sheath (110).
17. The optical cable (100) according to any one of claims 1-5, characterized in that, The sheath (110) is made of materials including low-smoke halogen-free materials, polyvinyl chloride, thermoplastic polyurethane elastomer rubber, polyamide, or thermoplastic polyamide elastomer.
18. The optical cable (100) according to any one of claims 1-5, characterized in that, The material of the elastic layer (130) may include porous materials, foamed materials or flexible materials.
19. The optical cable (100) according to any one of claims 1-5, characterized in that, The materials of the elastic layer (130) include: polyacrylate, polyurethane, polystyrene, ternary rubber, polyethylene, ethylene-vinyl acetate copolymer or styrene thermoplastic elastomer.
20. The optical cable (100) according to any one of claims 1-5, characterized in that, The material of the first adhesive layer (140) is hot melt adhesive; or, the material of the first adhesive layer (140) is pressure-sensitive adhesive.
21. The optical cable (100) according to any one of claims 1-5, characterized in that, The sheath (110) is a transparent sheath.
22. The optical cable (100) according to any one of claims 1-5, characterized in that, The optical waveguide (120) is a single-core optical fiber or a multi-core optical fiber.
23. The optical cable (100) according to any one of claims 1-5, characterized in that, The thickness of the elastic layer (130) is 0.1mm-1mm.
24. The optical cable (100) according to any one of claims 1-5, characterized in that, The optical cable (100) also includes a release film (150) that is bonded to the surface of the first adhesive layer (140) away from the sheath (110).
25. An optical cable (100), characterized in that, The optical cable (100) is transparent, and the optical cable (100) includes: Optical waveguide (120); The sheath (110) includes a substrate (111) and a cylindrical body (112), the cylindrical body (112) and the substrate (111) are connected, and the cylindrical body (112) surrounds the outer peripheral surface of the optical waveguide (120); An elastic layer (130) is connected to the surface of the substrate (111) away from the cylinder (112); A first adhesive layer (140) is connected to the surface of the elastic layer (130) away from the sheath (110); and A reinforcing member (160) is provided, wherein the sheath (110) surrounds the outer peripheral surface of the reinforcing member (160), and the extending direction of the reinforcing member (160) is consistent with the extending direction of the optical waveguide (120).
26. The optical cable (100) according to claim 25, characterized in that, The sheath (110) includes: a plurality of the cylindrical bodies (112) and a plurality of the optical waveguides (120), each of the cylindrical bodies (112) being connected to the same side of the substrate (111); one of the cylindrical bodies (112) surrounds the outer peripheral surface of at least one of the optical waveguides (120).
27. The optical cable (100) according to claim 26, characterized in that, The optical cable (100) further includes a second adhesive layer (170) located between the elastic layer (130) and the sheath (110).
28. The optical cable (100) according to any one of claims 25-27, characterized in that, The reinforcing member (160) is made of a transparent material.
29. The optical cable (100) according to any one of claims 25-27, characterized in that, The materials of the reinforcing member (160) include: glass yarn, glass fiber, aramid, ultra-high molecular weight polyethylene, glass fiber reinforced plastic or Kevlar fiber reinforced plastic.
30. The optical cable (100) according to claim 28, characterized in that, The reinforcing member (160) is a glass rod, glass fiber, or glass filament.
31. The optical cable (100) according to claim 30, characterized in that, The diameter of the glass rod, glass filament, or glass fiber is larger than the diameter of the optical waveguide.
32. The optical cable (100) according to claim 30 or 31, characterized in that, The surface of the glass rod, glass fiber, or glass filament has a coating.
33. The optical cable (100) according to claim 32, characterized in that, The coating is made of acrylic resin.
34. The optical cable (100) according to any one of claims 25-27, characterized in that, The optical waveguide (120) and the reinforcing member (160) are both embedded in the sheath (110) and in direct contact with the sheath (110).
35. The optical cable (100) according to any one of claims 25-27, characterized in that, The sheath (110) is made of materials including low-smoke halogen-free materials, polyvinyl chloride, thermoplastic polyurethane elastomer rubber, polyamide, or thermoplastic polyamide elastomer.
36. The optical cable (100) according to any one of claims 25-27, characterized in that, The material of the elastic layer (130) may include porous materials, foamed materials or flexible materials.
37. The optical cable (100) according to any one of claims 25-27, characterized in that, The materials of the elastic layer (130) include: polyacrylate, polyurethane, polystyrene, ternary rubber, polyethylene, ethylene-vinyl acetate copolymer or styrene thermoplastic elastomer.
38. The optical cable (100) according to any one of claims 25-27, characterized in that, The material of the first adhesive layer (140) is hot melt adhesive; or, the material of the first adhesive layer (140) is pressure-sensitive adhesive.
39. The optical cable (100) according to any one of claims 25-27, characterized in that, The sheath (110) is a transparent sheath.
40. The optical cable (100) according to any one of claims 25-27, characterized in that, The optical waveguide (120) is a single-core optical fiber or a multi-core optical fiber.
41. An optical cable assembly (40), characterized in that, The optical cable assembly (40) includes a connector (41) and an optical cable (100) according to any one of claims 1-40, one end of the optical cable (100) being connected to the connector (41).
42. A communication system (10), characterized in that, The communication system (10) includes a first network device (20), a second network device (30), and an optical cable assembly (40) as described in claim 41. The second network device (30) is connected to the connector (41), and the first network device (20) is connected to the end of the optical cable (100) away from the connector (41).