Cable

Abstract

A cable comprising an adhesive layer (400), an optical unit (100), an amplifying unit (200) and a connecting portion (300), wherein the amplification unit (200) is arranged at a distance from the optical unit (100) and both extend in a first direction; at least one amplification unit (200) is provided, and the amplification unit (200) is distributed with the optical unit (100) in a second direction and connected by the connecting section (300); and wherein between two opposite wall surfaces of the adhesive layer (400) in a third direction, one serves as a first wall surface (420), the first wall surface (420) is adhesively bonded to at least one of the optical unit (100), the connecting section (300), and the amplification unit (200); the third direction, the second direction, and the first direction are perpendicular to one another; and the first direction is a longitudinal extension direction of the adhesive layer (400).

Description

Field of the invention

[0001] The present application relates to the field of optical communication technologies and in particular to a cable. Background of the invention

[0002] In fiber-to-the-room (FTTR) applications, a self-adhesive optical cable is characterized by its small size and self-adhesive nature. Given current industry requirements for the concealment and aesthetics of optical cables in indoor spaces, a smaller cable size is preferred, and concealed installation along wall surfaces is desired.

[0003] To ensure safe and long-lasting use of self-adhesive optical cables, a sufficient adhesive surface is required. Therefore, a flat structure is typically used. In indoor applications, various complex installation environments are often encountered due to space constraints, such as inside corners, outside corners, and corners of the surface.

[0004] Conventional flat-structured optical cables have many application challenges in this scenario. For example, conventional flat optical cables tend to warp at the corners of the plane, resulting in poor adhesion between the corners and the wall surface, which severely compromises the overall aesthetics and adhesive stability of the installation.

[0005] For flat optical cables with high-strength reinforcement elements, excessive stress on the reinforcement elements at the inside and outside corner bends can also lead to poor adhesion between the optical cable and the installation surface (e.g., the wall).

[0006] Furthermore, self-adhesive optical cables are not always installed on standard, flat surfaces indoors. In some scenarios involving curved surfaces and corner installations, the flat undersides of conventional flat optical cables are difficult to adapt to such specific installation requirements, and long-term installation in such areas can lead to uneven loading and adhesive failure, which compromises the aesthetics of the optical cables. Brief description of the invention

[0007] The present application provides a cable that solves the problem in the relevant prior art that flat optical cables tend to distort during installation, resulting in poor adhesion.

[0008] The present invention provides a cable comprising an adhesive layer, an optical unit, a reinforcement unit and a connecting portion, wherein the amplifying unit is arranged at a distance from the optical unit, and both extend in a first direction; at least one amplifying unit is provided, and the amplifying unit is distributed with the optical unit in a second direction and connected by the connecting portion; and between two opposite wall surfaces of the adhesive layer in a third direction, one serves as a first wall surface, the first wall surface is connected to at least one of the optical unit, the connecting section and the amplifying unit; the third direction, the second direction and the first direction are perpendicular to each other; and the first direction is a longitudinal extension direction of the adhesive layer.

[0009] In some embodiments, the thickness b of the connecting portion is smaller than the thickness a of the optical unit, wherein the thickness b of the connecting portion is defined as a distance from a top surface to a bottom surface of the connecting portion in the third direction; and the thickness a of the optical unit is defined as the distance from an upper surface of the optical unit to the first wall surface in the third direction.

[0010] In some embodiments, the thickness b of the connecting portion is not more than 40% of the thickness a of the optical unit.

[0011] In some embodiments, the amplification units are provided on both sides of the optical unit in the second direction; and / or the optical unit and the amplifying units distributed in the second direction are all bonded to the first wall surface; or the optical unit, the connecting portion, and the amplifying units distributed in the second direction are all bonded to the first wall surface; and / or in the second direction, at least two of the amplification units are arranged on the same side of the optical unit and the two adjacent amplification units are connected by the connecting section; and / or at least one amplifying unit is provided, and the amplifying unit is arranged above the optical unit in the third direction, and the amplifying unit is connected to the optical unit by the connecting portion; and / or the cross-section of the optical unit is circular, square, U-shaped or semi-circular; and / or a cross-section of the reinforcement unit is circular, square, U-shaped or semi-circular; and / or an upper surface and / or a lower surface of the connecting portion is provided with a first tearable groove in the third direction, and the first tearable groove extends along the first direction; and / or a second tearable groove is provided on the adhesive layer corresponding to the connecting portion, and the second tearable groove extends along the first direction; and / or the connecting section is made of one of the following materials: low-smoke, halogen-free, flame-retardant polyolefin, polyvinyl chloride, polyurethane, polytetrafluoroethylene and nylon; and / or a part of the adhesive layer is embedded in a gap between the optical unit and the amplifying units distributed in the second direction.

[0012] In some embodiments, between the two opposite wall surfaces of the adhesive layer in the third direction, the other serves as a second wall surface, and a release film is provided on the second wall surface.

[0013] In some embodiments, the release liner is made from one of the following: polyethylene terephthalate release liner, polyethylene release liner, polypropylene release liner, polyvinyl chloride release liner, paper-based release liner, or composite release liner.

[0014] In some embodiments, the optical unit comprises an optical fiber and a first cladding layer, wherein the optical fiber is located within the first cladding layer.

[0015] In some embodiments, the number of optical fibers is 1 to 24 cores; and / or the first sheath layer is made of one of the following materials: low-smoke, halogen-free, flame-retardant polyolefin, polyvinyl chloride, polyurethane, polytetrafluoroethylene and nylon.

[0016] In some embodiments, the reinforcing unit comprises a reinforcing element and a second cladding layer, and the second cladding layer is applied to a surface of the reinforcing element.

[0017] In some embodiments, the second cladding layer is made of one of the following materials: low-smoke, halogen-free, flame-retardant polyolefin, polyvinyl chloride, polyurethane, polytetrafluoroethylene, and nylon; and / or the reinforcing element is made of one or more of the following elements: steel wire, steel strand, aramid fibre-reinforced plastic rod, fibre-reinforced flexible plastic rod, glass fibre-reinforced plastic rod, polyethylene rod, polyethylene yarn, aramid yarn, glass yarn and glass fibre; and / or part of the reinforcing element is located outside the second jacket layer.

[0018] The advantageous effects provided by the technical solution of the present invention are: The cable provided according to the invention connects the optical unit and the reinforcement unit to each other through the connecting portion to form a flat shape, and with this construction, the reinforcement unit provides protection in areas without corners, thereby imparting strong tensile strength to the cable; when the cable passes through a corner, the connecting portion is cut off to separate the reinforcement unit from the optical unit, and only the optical unit is used for the corner, which can effectively avoid overall deformation of the cable during corner crossing; and when the cable passes through inner or outer corners, the stress on the cable can be greatly reduced by separating the reinforcement unit, so that the cable can be well fixed to the guide surface. Short description of the characters

[0019] To better illustrate the technical solution in the embodiments of the invention, the figures required for describing the embodiments are briefly presented below. It is obvious that the figures in the following description represent only a part of the embodiments of the invention; for the average person skilled in the art, other figures can also be created on the basis of these figures without inventive effort. Fig. 1 is a schematic diagram of a first structure of a cable in an embodiment of the present invention; Fig. 2 is a side view of Fig. 1; Fig. 3 is a schematic representation of the guidance through a corner of the plane in Fig. 1; Fig. 4 is a schematic diagram of a second structure of a cable in an embodiment of the present invention; Fig. 5 is a schematic diagram of a third structure of a cable in an embodiment of the present invention; Fig. 6 is a schematic representation of a cable in an embodiment of the invention in a curved surface installation scenario; Fig. Figure 7 is a schematic representation of a cable in an embodiment of the invention in a corner installation scenario; Fig. 8 is a schematic diagram of a fourth structure of a cable in an embodiment of the present invention; Fig. 9 is a schematic diagram of a fifth structure of a cable in an embodiment of the present invention; Fig. 10 is a schematic diagram of a sixth structure of a cable in an embodiment of the present invention; Fig. 11 is a schematic diagram of a seventh structure of a cable in an embodiment of the present invention;

[0020] In the figures: 100 - optical unit; 110 - optical fiber; 120 - the first cladding layer; 200 - reinforcing unit; 210 - reinforcing element; 220 - the second cladding layer; 300 - connecting portion; 310 - the first tearable groove; 320 - deformation space; 400 - adhesive layer; 410 - the second tearable groove; 420 - the first wall surface; 430 - the second wall surface; 500 - release film; 600 - curved object to be glued; 700 - rectangular object to be glued. Detailed description of the embodiments

[0021] To clarify the purpose, technical solutions, and advantages of the embodiments of the invention, the technical solutions in the embodiments of the invention are described clearly and completely in conjunction with the figures of the embodiments of the invention. Of course, the described embodiments represent only a portion of the embodiments of the invention and not all embodiments. Starting from the embodiments disclosed herein, all other embodiments that a person skilled in the art can make without inventive effort fall within the scope of the present application.

[0022] As in Fig. 1, Fig. 2 and Fig. As shown in Fig. 3, the embodiment of the present invention provides a cable including an adhesive layer 400, an optical unit 100, a reinforcement unit 200, and a connecting portion 300. For convenience, the longitudinal extension direction of the adhesive layer 400 or the optical unit 100 is defined as a first direction (referred to as the Z direction), the thickness extension direction of the adhesive layer 400 as a third direction (referred to as the Y direction), and the width extension direction of the adhesive layer 400 as a second direction (referred to as the X direction); and the third direction, the second direction, and the first direction are perpendicular to each other.The reinforcement unit 200 and the optical unit 100 extend along the first direction, and the reinforcement unit 200 is arranged at a distance from the optical unit 100 so that a gap is formed between the reinforcement unit 200 and the optical unit 100, and the reinforcement unit 200 can improve the tensile strength of the cable, thereby enabling the cable to withstand greater design stress and reducing or avoiding damage to the optical fiber caused by excessive tensile force during installation.Among all the reinforcement units 200, at least one reinforcement unit 200 is distributed with the optical unit 100 in the second direction, and the reinforcement unit 200 is connected to the optical unit 100 through the connecting portion 300. The two ends of the connecting portion 300 in the second direction are respectively connected to the reinforcement unit 200 and the optical unit 100, so that the cable has a flat shape. Between two opposite wall surfaces of the adhesive layer 400 in the third direction, one of which serves as the first wall surface 420, the first wall surface 420 is bonded to at least one of the optical unit 100, the connecting portion 300, and the reinforcement unit 200, and the adhesive layer 400 enables the cable to be fixed during use.

[0023] The cable according to the invention connects the optical unit and the reinforcement unit together through the connecting portion to form a flat shape, and through this design, the reinforcement unit provides protection in areas without corners, which makes the cable have strong tensile strength; when the cable passes through a corner of the plane, the connecting portion can be cut off to easily separate the reinforcement unit from the optical unit, and only the optical unit is used for the corner, which can effectively prevent the cable from overall deformation during corner crossing; when the cable passes through an inside corner or an outside corner, separating the reinforcement unit can greatly reduce the stress on the cable, so that the cable can be well fixed to the laying surface.In a curved surface installation scenario, since the position of the connecting portion can be bent, the optical unit and the amplifying unit can have a certain bending curvature along the second direction, thereby improving the reliability of the cable in the curved surface installation scenario.

[0024] It is understood that the connecting portion 300 provided according to the invention may be a continuous structure extending along the first direction, as shown in Fig. 3, and the connecting portion 300 according to the invention may also comprise a plurality of connecting elements, wherein the plurality of connecting elements are distributed at intervals along the first direction and two ends of each connecting element are connected in the second direction to the amplifying unit 200 and the optical unit 100, respectively.

[0025] It is understood that the cable provided in the embodiments of the invention may be an optical cable, and in some examples, the cable may also be a hybrid cable comprising both an optical cable and an electrical cable.

[0026] As in Fig. 1, the optical unit 100 includes an optical fiber 110 and a first cladding layer 120, with the optical fiber 110 located within the first cladding layer 120. The first cladding layer 120 encloses the optical fiber 110 along its entire length, and the first cladding layer 120 serves to insulate and protect the optical fiber 110 and prevent the optical fiber 110 from being damaged by collisions, compression, or other interactions with the external environment during transportation, deployment, and other processes.

[0027] It is understood that the number of optical units 100 in the cable according to the present invention is one, but the number of optical units 100 may be determined as needed.

[0028] The number of optical fibers 110 can be selected as needed. For example, the number of optical fibers 110 is 1 to 24 cores.

[0029] There are a variety of options for the material of the first jacket layer 120, such as one of the following: low-smoke, halogen-free, flame-retardant polyolefin, polyvinyl chloride, polyurethane, polytetrafluoroethylene, and nylon.

[0030] As in Fig. 1, the reinforcing unit 200 comprises a reinforcing member 210 and a second cladding layer 220, and the second cladding layer 220 is applied to the surface of the reinforcing member 210.

[0031] There are a variety of options for the material of the second jacket layer 220, such as one of the following: low-smoke, halogen-free, flame-retardant polyolefin, polyvinyl chloride, polyurethane, polytetrafluoroethylene, and nylon.

[0032] There are a variety of possible materials for the reinforcement element 210, including one or more of steel wire, steel strand, aramid fiber-reinforced plastic rod, fiber-reinforced flexible plastic rod, glass fiber-reinforced plastic rod, polyethylene rod, polyethylene yarn, aramid yarn, glass yarn, and glass fiber. The glass fibers can be either bare fibers, i.e., glass fibers without a coating, or coated glass fibers.

[0033] There are a variety of options for the material of the connecting section 300, such as one of the following: low-smoke, halogen-free, flame-retardant polyolefin, polyvinyl chloride, polyurethane, polytetrafluoroethylene, and nylon.

[0034] According to a preferred embodiment, the first cladding layer 120, the second cladding layer 220 and the connecting portion 300 are made of the same type of material.

[0035] According to a preferred embodiment, the major axis outer diameter of the cable is less than or equal to 8 mm and the minor axis outer diameter is less than or equal to 5 mm.

[0036] According to a preferred embodiment, a portion of the reinforcing element 210 is located outside the second cladding layer 220, such that the reinforcing element 210 is partially uncoated by the second cladding layer 220. Specifically, a receiving groove extending along the first direction is provided on a sidewall of the second cladding layer 220, and the reinforcing element 210 is disposed in the receiving groove, such that the portion of the sidewall of the reinforcing element 210 is uncoated by the second cladding layer 220.

[0037] According to a preferred embodiment, the cross-sectional area of ​​the part of the reinforcing element 210 located outside the second cladding layer 220 is less than 50% of the total cross-sectional area of ​​the reinforcing element 210, for example 45%, 40% or 35%.

[0038] According to a preferred embodiment, the connecting portion is provided with a destructible property by limiting the thickness of the connecting portion, allowing the optical unit and the amplifying unit to be easily separated without exposing the optical fiber during the separation process. The optical unit is provided with an independent cladding layer to protect the optical fiber, ensuring good reliability when the optical unit is used independently.

[0039] In particular, as in Fig. 1, the thickness b of the connecting portion 300 is smaller than the thickness a of the optical unit 100, so that a deformation space 320 is formed on the top and / or bottom of the connecting portion 300 in the third direction. The deformation space 320 not only facilitates the destruction of the connecting portion 300 by an installer to separate the reinforcement unit, but also allows the flat-shaped cable to flexibly deform when laid in a region with a curved surface, enabling better adaptation to the curved surface and reducing the likelihood of deformation.

[0040] The thickness b of the connecting portion 300 is defined as a distance from an upper surface to a lower surface of the connecting portion 300 in the third direction; and the thickness a of the optical unit 100 is defined as a distance from an upper surface of the optical unit 100 to the first wall surface 420 in the third direction.

[0041] It should be understood that the size ratio between the above thickness a and the thickness b can be determined depending on the actual requirements. For example, in a preferred embodiment, the thickness b of the connecting portion 300 is no more than 40% of the thickness a of the optical unit 100. For example, b = 40% a, or b = 35% a, or b = 30% a, or b = 25% a, etc.

[0042] According to a preferred embodiment, as in Fig. 1, the amplifying units 200 are provided on both sides of the optical unit 100 in the second direction to protect the optical unit 100 from both sides.

[0043] According to a preferred embodiment, as in Fig. 1, the optical unit 100 and the reinforcement units 200 distributed in the second direction are all bonded to the first wall surface 420, or the optical unit 100, the connecting portion 300, and the reinforcement units 200 distributed in the second direction are all bonded to the first wall surface 420. In a corner installation, the cable can be bent in two planes (in this case, the cable remains intact, and since the connecting portion is not damaged, good tensile behavior can be ensured during bonding along the corner), or the connecting portion on one side can be cut off, and the cable can be bent in two planes at the point where the connecting portion is cut off.The cable can be glued and laid along the corner on two surfaces, increasing the contact area between the cable and the object to be glued and improving the reliability of the installation in this scenario.

[0044] According to a preferred embodiment, at least two amplification units 200 are arranged on the same side of the optical unit 100 in the second direction, and two adjacent amplification units 200 are connected by the connecting section 300. As shown in Fig. As shown in Fig. 9, two reinforcement units 200 are arranged on the same side of the optical unit 100, which can provide better support and protection for the optical unit 100.

[0045] According to a preferred embodiment, at least one of all the amplification units 200 is located above the optical unit 100 in the third direction. Since it is far away from the adhesive layer 400, it does not need to be bonded to the adhesive layer 400, and the amplification unit 200 is connected to the optical unit 100 by the connecting portion 300. As shown in Fig. 10, two amplifying units 200 are located above the optical unit 100 in the third direction and two amplifying units 200 in the second direction, so that a total of four amplifying units 200 are distributed around the circumferential direction of the optical unit 100, which enables the protection of the optical unit 100 in a plurality of dimensional directions.

[0046] It should be noted that when multiple reinforcement units 200 are present, the reinforcement element in at least one of the reinforcement units 200 can be configured as an optical fiber as needed, so that the reinforcement unit 200 effectively functions as the optical unit 100. Since a plurality of reinforcement units 200 are present, the reinforcement unit 200 functioning as the optical unit 100 does not need to be cut during the actual laying, such as when cutting the reinforcement unit 200 is required to facilitate turning. Instead, other reinforcement units 200 can be cut to complete the laying, thereby ensuring the effectiveness of the laying.

[0047] According to a preferred embodiment, the cross section of the optical unit 100 is circular, square, semicircular, or in another irregular shape, such as U-shaped. As shown in Fig. 1, the cross-section of the optical unit 100 is U-shaped, specifically with a rounded top and a flat bottom. Note that the rounded tip in this U-shape can be either semicircular or a small arc. Furthermore, the cross-section of the optical unit 100 can also have a rounded top and a trapezoidal bottom. The cross-section of the amplification unit 200 can be circular, square, semicircular, or other irregular shapes, such as U-shaped. As shown in Fig. As shown in Figure 1, the cross section of the optical unit 100 is U-shaped, specifically, with a rounded top and a flat bottom. Note that the rounded tip in this U-shape can be either semicircular or a small arc. Furthermore, the cross section of the optical unit 100 can also have a rounded top and a trapezoidal bottom. By judiciously controlling the shapes of the optical unit 100 and the reinforcement unit 200, the adhesive surface of the optical unit 100 and the reinforcement unit 200 can be adjusted, thereby improving the adhesion between the adhesive layer 400 and the optical unit 100 and the reinforcement unit 200.

[0048] According to a preferred embodiment, the upper surface and / or the lower surface of the connecting portion 300 is provided with a first tearable groove 310 in the third direction, and the first tearable groove 310 extends along the first direction; and by positioning the first tearable groove 310, the breakable area of ​​the connecting portion 300 can be adjusted, and by positioning the breakable area away from the optical unit 100, the optical unit 100 can be better protected from damage.

[0049] According to a preferred embodiment, a second tearable groove 410 is provided on the adhesive layer 400 corresponding to the connecting portion 300, and the second tearable groove 410 extends along the first direction; and by positioning the second tearable groove 410 on the adhesive layer 400, the ease of separation between the optical unit 100 and the amplifying unit 200 can be further improved, thereby making it more convenient to separate the optical unit 100 during actual assembly and use.

[0050] The adhesive layer 400 may be a hot melt adhesive or a pressure sensitive adhesive.

[0051] According to a preferred embodiment, between the two opposite wall surfaces of the adhesive layer 400 in the third direction, the other serves as a second wall surface 430, and a release film 500 is provided on the second wall surface 430.

[0052] There are a variety of options for the material of the release liner 500, including a polyethylene terephthalate (PET) release liner, a polyethylene (PE) release liner, a polypropylene (PP) release liner, a polyvinyl chloride (PVC) release liner, a paper-based release liner, and a composite release liner.

[0053] Some examples are explained in more detail below. Embodiment 1:

[0054] This embodiment provides a cable, and the cable includes an optical unit 100, two amplification units 200, and a connecting portion 300. The optical unit 100 and the amplification units 200 are connected to each other by the connecting portion 300. The optical unit 100 includes a first cladding layer 120 and optical fibers 110 disposed therein, and the number of optical fibers 110 is less than or equal to 24. The amplification unit 200 includes a reinforcement element 210 and a second cladding layer 220 applied to the reinforcement element 210.

[0055] In multi-core structures, there can be two cladding layers made of different materials.

[0056] The first sheath layer 120, the second sheath layer 220, and the connecting portion 300 can be made of the same material to ensure the strength of each part. The reinforcing member 210 can be made of any of the following materials: steel wire, steel strand, aramid fiber-reinforced plastic rod, fiber-reinforced flexible plastic rod, glass fiber-reinforced plastic rod, high-strength polyethylene rod, high-strength polyethylene yarn, aramid yarn, glass yarn, or glass fiber rod. The above structure can be formed by extrusion.

[0057] As in Fig. As shown in Figure 1, the bottom edges of the optical unit and the two amplifying units are aligned along a straight line. The bottom surfaces of the optical unit and the amplifying units are flat, and a pressure-sensitive adhesive layer is applied to this surface. The bottom surfaces of the optical unit and the amplifying units may also be non-flat. In this case, a portion of the adhesive layer may be embedded in the gap between the optical unit and the amplifying units, thereby increasing the adhesive surface of the adhesive layer, as shown in Figure 1. Fig. 4. For optical units and reinforcement units with flat bottoms, a portion of the adhesive layer can also be embedded in the gap between the optical unit and the reinforcement units to further increase the adhesive surface of the adhesive layer. On this basis, the adhesive layer can also be bonded simultaneously to the optical unit, the reinforcement units, and the connecting section. The connecting section can even be positioned on the same bottom edge plane, as shown in Fig. 5. On the other side of the adhesive layer, namely the second wall surface 430, a release film 500 is provided. The main function of the release film is to isolate the adhesive layer from other cables when the cable is stored on a reel, thereby preventing the entire reel from sticking together and hindering the application of the cable.

[0058] During assembly and use, the adhesive layer is bonded to the object to be bonded by removing the release film.

[0059] For straight-line application, direct adhesive mounting can be carried out.

[0060] At the corner position, a special cutting tool can be used to cut the connecting portion and the adhesive layer at the corresponding position of the connecting portion, thereby removing a portion of the reinforcement unit, as shown in Fig. As shown in Figure 3, the cut-off portion of the optical unit of the reinforcement unit can then be used for the corner. This ensures that the cable remains in good contact with the wall without distorting at the corners of the planes and is not affected by the tension of the reinforcement element during inside and outside corner wraps.

[0061] In the curved surface laying scenario, since the position of the connecting portion can be bent, the optical unit and the amplifying unit can have a certain bending curvature along the X-axis, thereby improving the contact area between the cable and the object 600 to be bonded to the curved surface, thereby improving the reliability of the cable in the curved surface laying scenario, as shown in Fig. 6 shown.

[0062] In the corner installation scenario, one side of the connecting section can be cut off (leaving the adhesive layer), and at the interface of the connecting section, the cable can be bent to form two planes. The cable can be glued and installed on two surfaces along the corner, thereby increasing the contact area between the cable and the perpendicularly bonded object 700, thereby improving the reliability of the installation in this scenario, as shown in Fig. 7 shown. Embodiment 2:

[0063] Compared with Embodiment 1, a second tearable groove 410 is added to one or both of the first wall surface 420 and the second wall surface 430 of the connecting portion 300 and the adhesive layer 400. By providing the second tearable groove 410, the breaking area of ​​the connecting portion 300 can be adjusted, and by placing the breaking area away from the optical unit 100, the optical unit 100 can be better protected from damage while reducing the tearing force during separation of the reinforcing unit 200. After removing the release film 500, the reinforcing unit 200 and the optical unit 100 can be separated without the use of tools. The corner position of the optical unit 100 can then be independently utilized by cutting with scissors, ensuring good performance for flat corners, inside corners, and outside corners.Furthermore, the addition of the second tearable groove 410 reduces the bending stress of the connecting portion 300, making it more suitable for non-curved and corner installation scenarios, as shown in FIG. Fig. 8 shown. Embodiment 3:

[0064] Compared to Embodiment 1, a plurality of reinforcement units 200 are added and connected to the optical unit 100 or other reinforcement units 200 through the connecting portion 300. An increased number of reinforcement units 200 improves the tensile strength of the cable and enables application in specific scenarios requiring high tensile strength. During bending, each reinforcement unit 200 can be partially removed to ensure the overall bending performance of the cable. In the structure with a plurality of reinforcement units 200, all reinforcement units 200 and the optical unit 100 can be arranged along a straight line, and the adhesive layer 400 is applied to the bottom, and the release film 500 is provided, as shown in Fig. 9 shown.

[0065] The optical unit 100 and the reinforcement units 200 may also be partially arranged along the same straight line, while other reinforcement units 200 are positioned in other directions around the circumference of the optical unit 100. This arrangement ensures that the overall width of the cable is not excessively expanded, and the adhesive layer 400 is applied to the undersides of the optical unit 100 and partially of the reinforcement units 200, and the release film 500 is provided, as shown in Fig. 10 shown. Embodiment 4:

[0066] Compared to embodiment 1 and as in Fig.As shown in Figure 11, the reinforcing element 210 can be partially positioned outside the second sheath layer 220, and the portion of the reinforcing element 210 located outside the second sheath layer 220 is bonded to the adhesive layer 400, so that the adhesive layer 400 can provide some protection for the reinforcing element 210. The cross-sectional area of ​​the portion of the reinforcing element 210 located outside the second sheath layer 220 is less than 50% of the total cross-sectional area of ​​the reinforcing element 210.

[0067] In describing the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top," "bottom," etc., is based on the orientation or positional relationship shown in the drawings. This is done only for the convenience of describing the present invention and simplifying the description. It does not imply that the device or element shown must have a particular orientation and be configured and operated in a particular orientation. Therefore, this should not be understood as a limitation of the present invention. The terms "installation," "connected," and "connection" are to be understood in a broad sense unless clearly stated and limited otherwise.For example, it may be a fixed connection, a detachable connection, or an integral connection; it may also be a mechanical connection or an electrical connection; it may also be a direct connection or an indirect connection via an intermediate medium, or it may be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present application may be understood depending on the specific circumstances.

[0068] It should be understood that relative terms such as "first" and "second" are used only to distinguish one entity or process from another entity or process within the scope of the present invention and do not necessarily require or imply any such actual relationship or order between those entities or processes. Furthermore, the terms "comprise," "include," or other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also those not expressly listed, or further includes elements that are inherent in the process, method, article, or apparatus. Unless otherwise limited, the terms defined by the phrase "having a...“ do not exclude the presence of other similar elements in the process, method, article or apparatus that incorporate those elements.

[0069] The above-mentioned and disclosed embodiments are intended to facilitate understanding and reproducibility by those skilled in the art. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be embodied in other embodiments without departing from the spirit or scope of the present teachings. Therefore, the present invention is not limited to the embodiments disclosed herein, but is to be determined by the widest scope consistent with the principles and novel features employed herein.

Claims

[1] A cable comprising an adhesive layer (400), an optical unit (100), an amplifying unit (200) and a connecting portion (300), wherein the amplification unit (200) is arranged at a distance from the optical unit (100) and both extend in a first direction; at least one amplification unit (200) is provided, and the amplification unit (200) is distributed with the optical unit (100) in a second direction and connected by the connecting section (300); and wherein between two opposite wall surfaces of the adhesive layer (400) in a third direction, one serves as a first wall surface (420), the first wall surface (420) is adhesively bonded to at least one of the optical unit (100), the connecting section (300), and the amplification unit (200); the third direction, the second direction, and the first direction are perpendicular to one another; and the first direction is a longitudinal extension direction of the adhesive layer (400). [2] Cable according to claim 1, wherein a thickness b of the connecting portion (300) is smaller than a thickness a of the optical unit (100); wherein the thickness b of the connecting portion (300) is defined as a distance from an upper surface to a lower surface of the connecting portion (300) in the third direction; and the thickness a of the optical unit (100) is defined as a distance from an upper surface of the optical unit (100) to the first wall surface (420) in the third direction. [3] A cable according to claim 2, wherein the thickness b of the connecting portion (300) is not more than 40% of the thickness a of the optical unit (100). [4] Cable according to claim 1, wherein Amplification units (200) are provided on both sides of the optical unit (100) in the second direction; and / or the optical unit (100) and the reinforcement units (200) distributed in the second direction are all bonded to the first wall surface (420), or the optical unit (100), the connecting portion (300) and the reinforcement units (200) distributed in the second direction are all bonded to the first wall surface (420); and / or in the second direction, at least two of the amplification units (200) are arranged on the same side of the optical unit (100), and the two adjacent amplification units (200) are connected by the connecting section (300); and / or at least one amplification unit (200) is provided, and the amplification unit (200) is arranged above the optical unit (100) in the third direction, and the amplification unit (200) is connected to the optical unit (100) by the connecting section (300); and / or a cross-section of the optical unit (100) is circular, square, U-shaped or semicircular; and / or a cross-section of the reinforcement unit (200) is circular, square, U-shaped or semicircular; and / or an upper surface and / or a lower surface of the connecting portion (300) is provided with a first tearable groove (310) in the third direction, and the first tearable groove (310) extends along the first direction; and / or a second tearable groove (410) is provided on the adhesive layer (400) corresponding to the connecting portion (300), and the second tearable groove (410) extends along the first direction; and / or the connecting portion (300) is made of one of the following materials: low-smoke, halogen-free, flame-retardant polyolefin, polyvinyl chloride, polyurethane, polytetrafluoroethylene, and nylon; and / or a part of the adhesive layer (400) is embedded in a gap between the optical unit (100) and the amplifying units (200) distributed in the second direction. [5] Cable according to claim 1, wherein between the two opposite wall surfaces of the adhesive layer (400) in the third direction, the other serves as a second wall surface (430), and a release film (500) is provided on the second wall surface (430). [6] The cable of claim 5, wherein the release film (500) is made of one of the following: polyethylene terephthalate (PET) release film, polyethylene (PE) release film, polypropylene (PP) release film, polyvinyl chloride (PVC) release film, paper-based release film, or composite release film. [7] The cable of claim 1, wherein the optical unit (100) comprises an optical fiber (110) and a first cladding layer (120), and the optical fiber (110) is located within the first cladding layer (120). [8] Cable according to claim 7, wherein the number of optical fibers (110) is 1 to 24 cores; and / or the first cladding layer (120) is made of one of the following materials: low-smoke, halogen-free, flame-retardant polyolefin, polyvinyl chloride, polyurethane, polytetrafluoroethylene and nylon. [9] The cable according to claim 1, wherein the reinforcement unit (200) comprises a reinforcement element (210) and a second sheath layer (220), and the second sheath layer (220) is applied to a surface of the reinforcement element (210). [10] The cable of claim 9, wherein the second jacket layer (220) is made of one of the following materials: low-smoke, halogen-free, flame-retardant polyolefin, polyvinyl chloride, polyurethane, polytetrafluoroethylene, and nylon; and / or the reinforcing element (210) is made of one or more of the following elements: steel wire, steel strand, aramid fiber-reinforced plastic rod, fiber-reinforced flexible plastic rod, glass fiber-reinforced plastic rod, polyethylene rod, polyethylene yarn, aramid yarn, glass yarn and glass fiber; and / or a part of the reinforcing element (210) is located outside the second cladding layer (220).

Images