A substrate and a plate body thereof

Abstract

The application discloses a kind of substrate and its plate body, substrate includes: upper layer board and lower layer board, upper layer board and lower layer board are stacked, optical fiber part is arranged between upper layer board and lower layer board;Wherein, at least one side of upper layer board and / or lower layer board is equipped with connecting portion;Connecting portion includes vertical section and horizontal section, one end of vertical section is fixedly connected with horizontal section, the other end is fixedly connected with upper layer board or lower layer board, and horizontal section can be curled for fixing optical fiber.In the application, connecting portion is arranged at least one side of upper layer board and / or lower layer board, and the exposed optical fiber is fixed by curling horizontal section;By setting vertical section, a buffer is added between the part of optical fiber arranged between upper layer board and lower layer board and the part of optical fiber fixed by horizontal section, to avoid the optical fiber arranged side by side to be broken due to left and right bending, and the optical fiber in the innermost circle can also be avoided to be broken due to too small bending radius, with simple structure and easy to realize.

Description

Technical Field

[0001] This invention relates to the field of optical fiber fixing technology, and in particular to a substrate and its plate body. Background Technology

[0002] The flexible optical path board includes a flexible substrate and optical fibers fixed within the flexible substrate. The flexible optical path board uses bare optical fibers, with the terminated bare fibers arranged in rows and extending beyond the flexible substrate. During termination, the optical fibers bend vertically and horizontally at the exit point. When the bare optical fibers extending from the flexible substrate bend horizontally at the exit point, the bending angle is greatest on both sides of the row of fibers, posing a risk of fiber damage. Summary of the Invention

[0003] The main technical problem solved by this invention is to provide a substrate and its plate body to solve the problem that the optical fiber is easily broken at the fiber outlet due to bending to the left or right.

[0004] To solve the above-mentioned technical problems, the first technical solution adopted by the present invention is: to provide a substrate for fixing optical fibers, the substrate comprising: an upper plate and a lower plate, the upper plate and the lower plate being stacked, and the optical fiber portion being disposed between the upper plate and the lower plate; wherein, at least one side of the upper plate and / or the lower plate is provided with a connecting portion; the connecting portion includes a vertical section and a horizontal section, one end of the vertical section being fixedly connected to the horizontal section, and the other end being fixedly connected to the upper plate or the lower plate, and the horizontal section being bendable for fixing the optical fiber.

[0005] The upper and lower plates are equipped with connecting parts in corresponding positions. The transverse sections on the upper and lower plates cooperate to form a slot, which is used to fix the optical fiber.

[0006] The length of the transverse segments on both the upper and lower layers is no less than half the circumference of the optical fiber.

[0007] The upper or lower plate is provided with a connecting part, and the transverse section on the upper or lower plate is curled to form a slot, which is used to fix the optical fiber.

[0008] The length of the transverse segment on the upper or lower layer is not less than the perimeter of the optical fiber.

[0009] The substrate also includes at least one middle layer plate, which is disposed between the upper layer plate and the lower layer plate. Optical fibers are disposed between the upper layer plate, the middle layer plate and the lower layer plate, and the slots formed by the transverse sections are fixedly connected to the exposed sections of the optical fibers.

[0010] The exposed section of the optical fiber is fitted with a protective sleeve, which is spaced apart from the upper and lower plates. The transverse section is curled to form a slot, which is fixedly connected to the protective sleeve.

[0011] The vertical section and the transverse section are perpendicular to each other, at least one end of the transverse section is crimpable, and the other end of the transverse section is close to the crimpable end.

[0012] The end of the vertical section is fixedly connected to the middle of one side of the transverse section.

[0013] The connecting part is at least two, and the transverse sections of the adjacent two connecting parts are arranged at intervals.

[0014] The included angle between the vertical section and the connecting part of the upper layer plate or the lower layer plate is a rounded angle.

[0015] The included angle between the vertical section and the connecting part of the upper layer plate or the lower layer plate is a rounded angle.

[0016] The width of the transverse section is not less than 3 mm.

[0017] The width of the vertical section is less than the width of the optical fiber.

[0018] The length of the vertical section is not less than 1 mm.

[0019] The side edges of the upper layer plate and the lower layer plate are respectively provided with protrusions, and the end of the vertical section away from the transverse section is fixedly connected to the protrusion away from the side edge of the upper layer plate or the lower layer plate.

[0020] The material of the transverse section is polyimide.

[0021] To solve the above technical problems, the second technical scheme adopted by the present application is to provide a plate body suitable for fixing an optical fiber, at least one side of the plate body is provided with a connecting part; wherein the connecting part comprises a vertical section and a transverse section, one end of the vertical section is fixedly connected to the transverse section, the other end is fixedly connected to the plate body, and the transverse section is crimpable for fixing the optical fiber.

[0022] The plate body and the connecting part are integrally made.

[0023] The beneficial effects of the present application are as follows: Different from the prior art, a substrate and a plate body thereof are provided, the substrate comprises: an upper layer plate and a lower layer plate, the upper layer plate and the lower layer plate are arranged in layers, and an optical fiber is arranged between the upper layer plate and the lower layer plate; at least one side of the upper layer plate and / or the lower layer plate is provided with a connecting part; the connecting part comprises a vertical section and a transverse section, one end of the vertical section is fixedly connected to the transverse section, the other end is fixedly connected to the upper layer plate or the lower layer plate, and the transverse section is crimpable for fixing the optical fiber. In the present application, the connecting part is arranged on at least one side of the upper layer plate and / or the lower layer plate, the exposed optical fiber is fixed by crimping the transverse section, a buffer is arranged between the part of the optical fiber fixed by the transverse section and the part of the optical fiber arranged between the upper layer plate and the lower layer plate through the vertical section, so that the outermost optical fiber is prevented from being broken due to left and right bending, and the innermost optical fiber is also prevented from being broken due to too small bending radius, and the structure is simple and easy to realize. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of one embodiment of the plate body in this invention;

[0025] Figure 2 This is a schematic diagram of another embodiment of the plate body in this invention;

[0026] Figure 3 This is a schematic diagram of a specific embodiment of the connection between the substrate and the optical fiber in this invention;

[0027] Figure 4 for Figure 3 A schematic diagram of the connection between the middle substrate and the optical fiber at another angle;

[0028] Figure 5 This is a schematic diagram of another specific embodiment of the connection between the substrate and the optical fiber in this invention;

[0029] Figure 6 for Figure 5 A schematic diagram of the connection between the middle substrate and the optical fiber row from another angle;

[0030] Figure 7 This is a schematic diagram of another specific embodiment of the connection between the substrate and the optical fiber in this invention. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0032] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Please see Figure 1 , Figure 1This is a schematic diagram of the structure of one embodiment of the plate body in this invention. This embodiment provides a plate body 101, which can be used to fix optical fibers. The plate body 101 is provided with a connecting portion 105 for fixing optical fibers (not shown). In this embodiment, the fixed optical fiber is a fiber array composed of multiple individual optical fibers. Specifically, the plate body 101 has two ends, one as the fiber inlet end 102 and the other as the fiber outlet end 103. Specifically, when the plate body 101 is a rectangular structure, one of the two opposite long sides is the fiber outlet end 103 and the other is the fiber inlet end 102. In other embodiments, the plate body 101 can also be pentagonal, hexagonal, or other polygonal shapes. The shape of the plate body 101 is not limited here, as long as the plate body 101 has a fiber inlet end 102 and a fiber outlet end 103.

[0035] In another embodiment, please refer to Figure 2 , Figure 2 This is a schematic diagram of another embodiment of the plate body in this invention. Protrusions 104 are respectively provided on the side edges of the plate body 101. One end of the vertical segment 106 away from the horizontal segment 107 is fixedly connected to the side of the protrusion 104 away from the plate body 101. The protrusion 104 has a rectangular structure, and its size is smaller than the size of the plate body 101. In a specific embodiment, multiple protrusions 104 are provided on the side edges of the plate body 101, and the multiple protrusions 104 can be arranged at equal intervals. Connecting portions 105 provided on the plate body 101 are located on the side of the protrusions 104 away from the plate body 101. That is, the plate body 101 is fixedly connected to the connecting portions 105 through the protrusions 104. The number of connecting portions 105 is the same as the number of protrusions 104.

[0036] In one specific embodiment, only the fiber outlet end 103 of the board body 101 is provided with a connecting portion 105, while the fiber inlet end 102 of the board body 101 is not provided with a connecting portion 105. In a preferred embodiment, both the fiber outlet end 103 and the fiber inlet end 102 of the board body 101 are provided with connecting portions 105.

[0037] To facilitate the fixing of multiple rows of optical fibers, there can be multiple connectors 105, which are spaced apart on the side of the plate 101. Preferably, the connectors 105 are equally spaced on the side of the plate 101, which allows for better control of the consistency of the plate edge spacing during the manufacturing process. Furthermore, the number of connectors 105 at the fiber inlet end 102 of the plate 101 is the same as the number of connectors 105 at the fiber outlet end 103 on one side of the plate 101.

[0038] The connecting part 105 includes a vertical section 106 and a horizontal section 107. One end of the vertical section 106 is fixedly connected to the horizontal section 107, and the other end is fixedly connected to the plate 101. The horizontal section 107 can be curled to fix the optical fiber.

[0039] In an embodiment, the vertical section 106 is perpendicular to the lateral section 107, and at least one end of the lateral section 107 is curled and close to the other end of the lateral section 107. In other alternative embodiments, the vertical section 106 and the lateral section 107 can be arranged non-perpendicularly and connected non-linearly, and at least one end of the lateral section 107 is curled around the optical fiber and fixedly connected to the optical fiber to fix the optical fiber.

[0040] In an embodiment, the end of the vertical section 106 is fixedly connected to the middle of one side of the lateral section 107. Preferably, the end of the vertical section 106 is fixedly connected to the middle of one side of the lateral section 107. In other alternative embodiments, the end of the vertical section 106 is fixedly connected to one end of the lateral section 107, and the other end of the lateral section 107 is curled and close to the end of the vertical section 106 to fix the optical fiber.

[0041] In an embodiment, in order to increase the connection firmness between the vertical section 106 and the plate body 101 and avoid the breakage of the connection between the vertical section 106 and the plate body 101 due to the bending of the optical fiber, the included angle between the vertical section 106 and the side of the plate body 101 is rounded. In an embodiment, in order to increase the connection firmness between the vertical section 106 and the lateral section 107 and avoid the breakage of the connection between the vertical section 106 and the lateral section 107 due to the bending of the optical fiber, the included angle between the vertical section 106 and the lateral section 107 is rounded.

[0042] In an embodiment, in order to ensure the strength of the lateral section 107 wrapping the optical fiber and avoid the breakage of the lateral section 107 during the fixing of the optical fiber, the width of the lateral section 107 is not less than 3 mm.

[0043] In an embodiment, in order to avoid the bending of the vertical section 106 during the curling of the lateral section 107 and cause the spacing problem between the optical fiber and the vertical section 106, the width of the vertical section 106 is less than the width of the optical fiber.

[0044] In an embodiment, in order to increase the buffer distance and reduce the pulling force of the maximum coil optical fiber and the deformation force of the minimum coil optical fiber when the optical fiber is bent left and right, the length of the vertical section 106 is not less than 1 mm.

[0045] In an embodiment, in order to facilitate the fixing of the transverse section 107 in the connecting section 105 by rolling, the material of the transverse section 107 in the connecting section 105 is polyimide. The material of the vertical section 106 can be the same as or different from that of the transverse section 107. Preferably, the transverse section 107 is integrally formed with the vertical section 106, i.e., the material of the vertical section 106 and the material of the transverse section 107 are both polyimide. That is, the material of the connecting section 105 is polyimide. In an embodiment, the plate body 101 is integrally formed with the connecting section 105, i.e., the material of the connecting section 105 and the material of the plate body 101 are both polyimide.

[0046] The embodiment provides a plate body suitable for fixing optical fibers, at least one side of the plate body is provided with a connecting section; wherein the connecting section comprises a vertical section and a transverse section, one end of the vertical section is fixedly connected with the transverse section, the other end is fixedly connected with the plate body, and the transverse section is rollable for fixing optical fibers. In the application, the fixing of the exposed optical fibers is realized by rolling the transverse section through the provision of the connecting section on at least one side of the plate body; the provision of the vertical section increases a buffer between the plate body and the transverse section, avoids the breakage of the optical fibers in the outermost circle due to the left and right bending and the breakage of the optical fibers in the innermost circle due to the too small bending radius, and has the advantages of simple structure and easy realization.

[0047] Please refer to Figures 3 to 6 , Figure 3 for a structural schematic view of the structure of the connecting section between the plate body and the optical fibers in the embodiment; Figure 4 for Figure 3 a structural schematic view of the structure of the connecting section between the plate body and the optical fibers in another angle; Figure 5 for a structural schematic view of the structure of the connecting section between the plate body and the optical fibers in another embodiment;

[0048] Figure 6 for Figure 5 a structural schematic view of the structure of the connecting section between the plate body and the optical fibers in another angle.

[0049] The embodiment provides a substrate 201 used for fixing optical fibers, the substrate 201 comprising an upper layer plate 202 and a lower layer plate 203, the upper layer plate 202 and the lower layer plate 203 being arranged in a stack, the optical fibers being arranged between the upper layer plate 202 and the lower layer plate 203, and a part of the optical fibers being exposed outside the upper layer plate 202 and the lower layer plate 203 to form an exposed section. At least one side of the upper layer plate 202 and / or the lower layer plate 203 is provided with a connecting part 205; the connecting part 205 comprises a vertical section 206 and a horizontal section 207, one end of the vertical section 206 being fixedly connected with the horizontal section 207, and the other end being fixedly connected with the upper layer plate 202 or the lower layer plate 203, and the horizontal section 207 being capable of being curled to fix the optical fibers. In the embodiment, the fixed optical fibers are a plurality of single optical fibers combined into an optical fiber row 210. Specifically, the upper layer plate 202 and the lower layer plate 203 each have two ends, one of which is an in-fiber end 211, and the other of which is an out-fiber end 212. The in-fiber end 211 of the upper layer plate 202 and the in-fiber end 211 of the lower layer plate 203 are located on the same side, and the out-fiber end 212 of the upper layer plate 202 and the out-fiber end 212 of the lower layer plate 203 are located on the same side. Specifically, the main body structure of the upper layer plate 202 and the lower layer plate 203 is the same. Specifically, when the upper layer plate 202 and the lower layer plate 203 are both rectangular structures, one of the two opposite long sides is the out-fiber end 212, and the other is the in-fiber end 211. In other embodiments, the upper layer plate 202 and the lower layer plate 203 can both be pentagonal structures, or can be hexagonal structures or other polygonal structures, and the shape of the upper layer plate 202 and the lower layer plate 203 is not limited herein, as long as the upper layer plate 202 and the lower layer plate 203 have the in-fiber end 211 and the out-fiber end 212.

[0050] In an embodiment, the structure, shape and size of the upper layer plate 202 and the lower layer plate 203 can be the same as those of the plate body 101 in the above embodiment. In another embodiment, only one of the upper layer plate 202 and the lower layer plate 203 has the same structure, shape and size as the plate body 101 in the above embodiment, and the other one is not provided with the connecting part 205, but has the same main body structure as the plate body.

[0051] In an embodiment, please refer to Figure 3 and Figure 4The upper layer plate 202 and the lower layer plate 203 are provided with the connecting portions 205 in corresponding positions, and the transverse sections 207 on the upper layer plate 202 and the lower layer plate 203 are matched to form the clamping slots 209 for fixing the row of optical fibers 210. Specifically, the transverse sections 207 on the upper layer plate 202 are curled towards the lower layer plate 203, and the transverse sections 207 on the lower layer plate 203 are curled towards the upper layer plate 202, and then the curled transverse sections 207 are matched to form the clamping slots 209 for fixing the row of optical fibers 210. In order to make the clamping slots 209 more firmly fix the row of optical fibers 210, the lengths of the transverse sections 207 on the upper layer plate 202 and the lower layer plate 203 are not less than half of the circumference of the row of optical fibers 210. That is to say, the transverse sections 207 on the upper layer plate 202 and the transverse sections 207 on the lower layer plate 203 are connected to each other after being curled to form a closed clamping slot 209, the inner wall of the clamping slot 209 can be in contact with the outer wall of the row of optical fibers 210, and then the connection stability is improved.

[0052] In another embodiment, referring to Figure 5 and Figure 6 only the upper layer plate 202 or the lower layer plate 203 is provided with the connecting portions 205, and the transverse sections 207 on the upper layer plate 202 or the lower layer plate 203 are curled to form the clamping slots 209 for fixing the row of optical fibers 210. Specifically, in order to make the clamping slots 209 more firmly fix the row of optical fibers 210, the lengths of the transverse sections 207 on the upper layer plate 202 or the lower layer plate 203 are not less than the circumference of the row of optical fibers 210.

[0053] In the bending process of the row of optical fibers 210, in order to reduce the difference between the tension and the deformation force of the optical fibers in the middle position and the optical fibers on both sides, the shape of the clamping slot 209 is circular or elliptical, that is, when the row of optical fibers 210 is fixed in the clamping slot 209, the row of optical fibers 210 in the clamping slot 209 forms a cluster. The positions between the optical fibers at the end of the clamping slot 209 away from the upper layer plate 202 or the lower layer plate 203 change, so that when the row of optical fibers 210 is further bent left and right, the tension on the outermost optical fibers is further reduced, and the deformation force on the innermost optical fibers is also further reduced, thereby avoiding the optical fibers being pulled off or broken.

[0054] In an optional embodiment, referring to Figure 7 , Figure 7FIG. 6 is a structural schematic diagram of another embodiment of the substrate and the light emitting fiber connection in the present application. The substrate 201 further comprises at least one middle layer plate 213, which is arranged between the upper layer plate 202 and the lower layer plate 203. The light emitting fiber 210 is arranged between the adjacent upper layer plate 202, the at least one middle layer plate 213 and the lower layer plate 203. The clamping groove 209 formed by the transverse section 207 is fixedly connected with the exposed section of the light emitting fiber 210. Specifically, the middle layer plate 213 can be three, that is, among the three middle layer plates 213, the light emitting fiber 210 is fixedly arranged between the adjacent middle layer plates 213, and the light emitting fiber 210 is arranged between the upper layer plate 202 and the adjacent middle layer plate 213 and between the lower layer plate 203 and the adjacent middle layer plate 213. The structure of the middle layer plate 213 is the same as the main body structure of the upper layer plate 202 and the lower layer plate 203, but the connecting part 205 is not arranged. The connecting part 205 is arranged on the upper layer plate 202 and / or the lower layer plate 203. The connecting part 205 arranged on the upper layer plate 202 and / or the lower layer plate 203 can fix all the light emitting fibers 210 between the upper layer plate 202, the middle layer plate 213 and the lower layer plate 203.

[0055] In an embodiment, in order to protect the exposed section of the light emitting fiber 210 from being damaged during production and use, the exposed section of the light emitting fiber 210 is sleeved with a protective sleeve 208. In order to avoid breaking the protective sleeve 208 during the left and right bending of the light emitting fiber 210, the end of the protective sleeve 208 is spaced apart from the upper layer plate 202 and the lower layer plate 203. The transverse section 207 in the upper layer plate 202 and / or the lower layer plate 203 is curled to form the clamping groove 209, and the clamping groove 209 is fixedly connected with the protective sleeve 208.

[0056] In another embodiment, the side edge of the upper layer plate 202 and / or the lower layer plate 203 is respectively provided with a protrusion (not shown), and the end of the vertical section 206 away from the transverse section 207 is fixedly connected with the protrusion away from the side edge of the upper layer plate 202 or the lower layer plate 203. The protrusion is a rectangular structure, and the size of the protrusion is smaller than the size of the upper layer plate 202 or the lower layer plate 203. In a specific embodiment, a plurality of protrusions are arranged on the side edge of the upper layer plate 202 and / or the lower layer plate 203, and the plurality of protrusions can be arranged at equal intervals. The connecting part 205 arranged on the upper layer plate 202 or the lower layer plate 203 is arranged on the side of the protrusion away from the upper layer plate 202 or the lower layer plate 203. That is, the upper layer plate 202 or the lower layer plate 203 is fixedly connected with the connecting part 205 through the protrusion. The number of the connecting part 205 is the same as the number of the protrusion.

[0057] In one embodiment, only one side of the upper plate 202 and / or the lower plate 203 is provided with the connecting portion 205 at the fiber exit end 212, and the other side of the upper plate 202 and / or the lower plate 203 is not provided with the connecting portion 205 at the fiber entry end 211. In a preferred embodiment, the upper plate 202 and / or the lower plate 203 is provided with the connecting portion 205 at both the fiber exit end 212 and the fiber entry end 211.

[0058] In order to facilitate the fixation of the plurality of rows of optical fibers 210, the connecting portion 205 can be provided in plurality and arranged at intervals on the side end of the upper plate 202 and / or the lower plate 203. Preferably, the connecting portion 205 is arranged at intervals on the side end of the upper plate 202 and / or the lower plate 203, which can better control the consistency of the plate edge spacing in the process. In addition, the number of connecting portions 205 arranged on the fiber entry end 211 of the upper plate 202 and / or the lower plate 203 is the same as the number of connecting portions 205 arranged on the fiber exit end 212 of the upper plate 202 and / or the lower plate 203.

[0059] The connecting portion 205 includes a vertical section 206 and a transverse section 207. One end of the vertical section 206 is fixedly connected with the transverse section 207, and the other end is fixedly connected with the upper plate 202 or the lower plate 203. The transverse section 207 can be curled to fix the row of optical fibers 210.

[0060] In one embodiment, the vertical section 206 and the transverse section 207 are perpendicular to each other, and at least one end of the transverse section 207 is curled and close to the other end of the transverse section 207. In other alternative embodiments, the vertical section 206 and the transverse section 207 can also be arranged non-perpendicularly and connected non-linearly. At least one end of the transverse section 207 can be curled around the row of optical fibers 210 and fixedly connected with the row of optical fibers 210 to fix the row of optical fibers 210.

[0061] In one embodiment, the end of the vertical section 206 is fixedly connected with the middle of one side of the transverse section 207. Preferably, the end of the vertical section 206 is fixedly connected with the center of one side of the transverse section 207. In other alternative embodiments, the end of the vertical section 206 is fixedly connected with one end of the transverse section 207, and the other end of the transverse section 207 is curled and close to the end of the vertical section 206 connected with the transverse section 207 to fix the row of optical fibers 210.

[0062] In an embodiment, in order to increase the connection firmness between the vertical segment 206 and the upper layer plate 202 or the lower layer plate 203, and avoid the connection between the vertical segment 206 and the upper layer plate 202 or the lower layer plate 203 being broken due to the bending of the optical fiber 210, the angle between the vertical segment 206 and the side of the upper layer plate 202 or the lower layer plate 203 is rounded. In an embodiment, in order to increase the connection firmness between the vertical segment 206 and the horizontal segment 207, and avoid the connection between the vertical segment 206 and the horizontal segment 207 being broken due to the bending of the optical fiber 210, the angle between the vertical segment 206 and the horizontal segment 207 is rounded.

[0063] In an embodiment, in order to ensure the strength of the horizontal segment 207 wrapping the optical fiber 210, and avoid the horizontal segment 207 being broken during the process of fixing the optical fiber 210, the width of the horizontal segment 207 is not less than 3mm.

[0064] In an embodiment, in order to avoid the vertical segment 206 being bent during the process of the horizontal segment 207 being curled, and cause the problem of the spacing between the optical fiber and the vertical segment 206, the width of the vertical segment 206 is less than the diameter of the optical fiber 210.

[0065] In an embodiment, in order to increase the buffer distance, and reduce the pulling force of the maximum circle optical fiber and the deformation force of the minimum circle optical fiber when the optical fiber 210 is bent left and right, the length of the vertical segment 206 is not less than 1mm.

[0066] In an embodiment, in order to facilitate the process of the horizontal segment 207 in the connection part 205 fixing the optical fiber 210 by curling, the material of the horizontal segment 207 in the connection part 205 is polyimide. The material of the vertical segment 206 can be the same as or different from the material of the horizontal segment 207. Preferably, the horizontal segment 207 and the vertical segment 206 are integrally made, that is, the material of the vertical segment 206 and the material of the horizontal segment 207 are both polyimide. That is, the material of the connection part 205 is polyimide. In an embodiment, the upper layer plate 202 or the lower layer plate 203 and the connection part 205 are integrally made, that is, the material of the connection part 205 and the material of the upper layer plate 202 and / or the lower layer plate 203 are both polyimide.

[0067] The substrate in the embodiment comprises an upper layer plate and a lower layer plate, the upper layer plate and the lower layer plate are arranged in a laminated manner, and the row of optical fibers is arranged between the upper layer plate and the lower layer plate; wherein at least one side fiber exit end of the upper layer plate and / or the lower layer plate is provided with a connecting part; the connecting part comprises a vertical segment and a horizontal segment, one end of the vertical segment is fixedly connected with the horizontal segment, the other end is fixedly connected with the upper layer plate or the lower layer plate, and the horizontal segment can be curled to fix the row of optical fibers. In the application, the connecting part is arranged at the at least one side fiber exit end of the upper layer plate and / or the lower layer plate, the row of exposed optical fibers is fixed by curling the horizontal segment, a buffer is arranged between the part of the row of optical fibers arranged between the upper layer plate and the lower layer plate and the part of the row of optical fibers fixed by the horizontal segment, so that the outermost optical fibers of the parallel arranged optical fibers are prevented from being broken due to left and right bending and the innermost optical fibers are prevented from being broken due to too small bending radius, and the structure is simple and easy to realize.

[0068] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the specification and the drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A substrate for securing an optical fiber, characterized by, The substrate is applied to a flexible optical path board, and the substrate comprises: an upper layer plate and a lower layer plate, the upper layer plate and the lower layer plate are arranged in a laminated manner, and the optical fiber part is arranged between the upper layer plate and the lower layer plate; wherein at least one side of the upper layer plate and / or the lower layer plate is provided with a connecting part; the connecting part comprises a vertical segment and a horizontal segment, one end of the vertical segment is fixedly connected with the horizontal segment, the other end is fixedly connected with the upper layer plate or the lower layer plate, the vertical segment and the horizontal segment are perpendicular to each other, at least one end of the horizontal segment is curlable and close to the other end of the horizontal segment, and the horizontal segment is curled for fixing the optical fiber; a protective sleeve is sleeved on the exposed part of the optical fiber, the protective sleeve is arranged in a spaced manner with the upper layer plate and the lower layer plate, and the horizontal segment is curled to form a clamping groove, and the clamping groove is fixedly connected with the protective sleeve.

2. The substrate of claim 1, wherein The connecting part is arranged on the upper layer plate and the lower layer plate in a position corresponding manner, and the horizontal segments on the upper layer plate and the lower layer plate are matched to form the clamping groove.

3. The substrate of claim 2, wherein, The length of the horizontal segment on the upper layer plate and the lower layer plate is not less than half of the circumference of the optical fiber.

4. The substrate of claim 1, wherein The connecting part is arranged on the upper layer plate or the lower layer plate, the horizontal segment on the upper layer plate or the lower layer plate is curled to form a clamping groove, and the clamping groove is used for fixing the optical fiber.

5. The substrate of claim 4, wherein, The length of the horizontal segment on the upper layer plate or the lower layer plate is not less than the circumference of the optical fiber.

6. The substrate according to claim 3 or 5, wherein The substrate further comprises at least one middle layer plate, the middle layer plate is arranged between the upper layer plate and the lower layer plate, the optical fiber is arranged between the upper layer plate, the middle layer plate and the lower layer plate, and the clamping groove formed by the horizontal segment is fixedly connected with the exposed part of the optical fiber through the protective sleeve.

7. The substrate of claim 1, wherein The end of the vertical segment is fixedly connected with the middle part of one side of the horizontal segment.

8. The substrate of claim 1, wherein The connecting part is at least two, and the horizontal segments in the adjacent two connecting parts are arranged in a spaced manner.

9. The substrate of claim 1, wherein The included angle between the vertical segment and the upper layer plate or the lower layer plate is a rounded angle.

10. The substrate according to claim 1 or 9, wherein The included angle between the vertical segment and the horizontal segment is a rounded angle.

11. The substrate of claim 1, wherein The width of the horizontal segment is not less than 3 mm.

12. The substrate of claim 1, wherein, The width of the vertical segment is less than the width of the optical fiber.

13. The substrate of claim 1, wherein The length of the vertical segment is not less than 1 mm.

14. The substrate of claim 1, wherein, The upper layer plate and the lower layer plate are respectively provided with a protruding block on the side edge, and one end of the vertical segment away from the horizontal segment is fixedly connected with the protruding block away from the side edge of the upper layer plate or the lower layer plate.

15. The substrate of claim 1, wherein, The material of the horizontal segment is polyimide.

16. The substrate of claim 1, wherein The upper layer plate and / or the lower layer plate are integrally made with the corresponding connecting part.

Images