A pre-embedded optical fiber array

Abstract

The utility model discloses a kind of pre-buried optical fiber arrays, including base, locating sheet, cover plate and multiple optical fibers, the top surface of base is opened with multiple optical fiber grooves;The top surface of base is opened with compensation groove, to separate as pre-pressing part and rear pressing part;Locating sheet is opened with multiple locating holes along thickness direction, locating hole and optical fiber groove one-to-one correspondence, locating sheet is detachably arranged in compensation groove;Cover plate cover is arranged on the top surface of base, including pre-pressing plate and rear pressing plate, pre-pressing plate and rear pressing plate plasticity connection, the bottom surface of pre-pressing plate is protruded with pressing strip, when pre-pressing plate and pre-pressing part cover, pressing strip is located in compensation groove, locating sheet is extruded and clamped between pressing strip and the side wall of pre-pressing part;Optical fiber includes pre-buried section and rear joint section, pre-buried section is located in corresponding optical fiber groove, and is arranged in corresponding locating hole;Rear joint section is located in the optical fiber groove of rear pressing part, and the inner end of rear joint section is in abutment with corresponding pre-buried section. It can solve the problem that pre-buried section of pre-buried optical fiber array is prone to microslip when sticking cover plate.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber technology, specifically to a pre-embedded optical fiber array. Background Technology

[0002] A fiber optic array is an array structure composed of multiple optical fibers, typically used for signal transmission and reception. It can transmit multiple signals simultaneously by arranging multiple fibers. Fiber optic arrays have wide applications in communications, sensor technology, laser beam control, and optical imaging.

[0003] Fiber optic arrays, due to their ability to precisely position optical fibers, have become important coupling components connecting optical devices and optical fibers. Currently, the most common pre-embedded fiber optic arrays are generally sheet-like structures. One end of the sheet-like structure is equipped with a pyramidal lens, within which multiple optical fibers are pre-embedded. One end of the optical fiber abuts against the lens, while the other end is located within the sheet-like structure. The sheet-like structure has a cover plate. Opening the cover plate exposes the fiber slot and the optical fibers inside. During coupling, the subsequent fiber segment is placed in the fiber slot of the sheet-like structure, abutting against the pre-embedded fiber segment. Then, the pre-embedded segment, subsequent segment, sheet-like structure, and cover plate are bonded together with adhesive.

[0004] However, the above-mentioned pre-embedded fiber array has the following problems: during the gluing process, especially when gluing the cover plate, the pre-embedded section is prone to slight slippage, causing its inner end to move away from the lens, or its outer end to detach from the subsequent connecting section, thereby affecting the coupling effect.

[0005] Therefore, this application is hereby submitted. Utility Model Content

[0006] The purpose of this invention is to provide a pre-embedded fiber optic array to solve the problem that the pre-embedded section of the pre-embedded fiber optic array is prone to slight slippage when the cover plate is glued.

[0007] This invention is achieved through the following technical solution:

[0008] An embedded fiber optic array includes: a substrate, the substrate being a horizontally arranged rectangular plate, with multiple fiber optic slots on the top surface of the substrate, the fiber optic slots extending along the long side of the top surface of the substrate and penetrating the substrate at both ends, all the fiber optic slots being evenly spaced; a compensation slot on the top surface of the substrate, the compensation slot extending along the wide side of the top surface of the substrate and penetrating the substrate at both ends, so that the substrate is divided into a pre-compression section and a post-compression section; a positioning plate, the positioning plate having multiple positioning holes along the thickness direction, the positioning holes corresponding one-to-one with the fiber optic slots, the positioning plate being detachably disposed within the compensation slot; and a cover plate, the cover plate being disposed on the top surface of the substrate to close the fiber optic slots, the cover plate including a pre-compression plate and a post-compression plate, the pre-compression plate and the post-compression plate being connected... The pressure plates are plastically connected to allow the pre-pressure plate and the rear pressure plate to bend relative to each other, with the creases parallel to the length direction of the compensation groove. The length of the pre-pressure plate is longer than the length of the pre-pressure part. A pressure strip is protruding from the bottom surface of the pre-pressure plate. When the pre-pressure plate and the pre-pressure part are closed, the pressure strip is located inside the compensation groove. The positioning piece is squeezed and clamped between the pressure strip and the side wall of the pre-pressure part. Multiple optical fibers are connected, with each optical fiber corresponding to an optical fiber groove. Each optical fiber includes a pre-embedded section and a post-connection section. The pre-embedded section is located inside the corresponding optical fiber groove, with both ends located on both sides of the compensation groove. The pre-embedded section passes through the corresponding positioning hole. The post-connection section is located inside the optical fiber groove of the rear pressure part, with the inner end of the post-connection section abutting against the corresponding pre-embedded section.

[0009] In another preferred embodiment, the top of the positioning piece is wedge-shaped so that the top surface is a slope.

[0010] In another preferred embodiment, an elastic layer is laid on any side of the positioning piece, and the elastic layer is sandwiched between the positioning piece and the sidewall of the pre-compression part.

[0011] In another preferred embodiment, the positioning hole extends through the bottom of the positioning piece; the diameter of the positioning hole matches the diameter of the optical fiber.

[0012] In another preferred embodiment, the rear pressing part is slidably provided with a plurality of adjustment plates along the length direction of the optical fiber groove. The adjustment plates slide within the adjustment groove so that the top surface of the adjustment plate is flush with the top surface of the rear pressing part. The adjustment plates correspond one-to-one with the optical fiber grooves, and the optical fiber groove portion is opened on the top of the corresponding adjustment plate.

[0013] In another preferred embodiment, the top of the adjustment plate is provided with a lever, and the bottom surface of the rear pressure plate is provided with multiple grooves, each groove corresponding to a lever. The width of the groove is slightly larger than the size of the lever, and the length of the groove is much larger than the size of the lever.

[0014] In another preferred embodiment, the top of the adjustment plate has an adhesive hole that extends along the length of the adjustment plate; the adhesive hole and the lever are respectively located on both sides of the width of the fiber optic slot.

[0015] In another preferred embodiment, the end of the fiber optic groove located in the rear pressure section that communicates with the adjustment groove is configured as a funnel shape.

[0016] In another preferred embodiment, the bottom of the adjustment groove and the bottom of the compensation groove are connected through a transition cavity.

[0017] In another preferred embodiment, baffles are provided on both sides of the pre-pressure plate in the width direction, and a buckle is provided on the side of the baffle away from the pre-pressure plate; when the pre-pressure plate is closed with the substrate, the buckle engages with the bottom wall of the substrate, and the baffle closes both ends of the compensation groove.

[0018] Because this utility model adopts the above-mentioned technical solution, it has the following positive effects compared with the prior art:

[0019] This utility model discloses a pre-embedded fiber optic array. A rectangular plate-shaped substrate has multiple fiber optic slots on its top surface, and multiple optical fibers are installed, including pre-embedded sections and post-connection sections. This allows the fibers to be radially positioned within the fiber optic slots, and the pre-embedded and post-connection sections to abut end-to-end within the slots. Furthermore, a compensation groove is provided. During adhesive bonding, excess adhesive flows into the compensation groove along the fiber optic slots or the top surface of the substrate, initially preventing the pre-embedded sections from slipping within the slots due to the adhesive. Next, positioning plates with positioning holes are provided, each corresponding to a fiber optic slot. The pre-embedded sections pass through the corresponding positioning holes, and the friction of the hole walls further limits axial positioning, preventing axial slippage. Finally, a cover plate with a protruding pressure strip on its bottom surface is provided. When the cover plate is bonded to the substrate, the pressure strip enters the compensation groove. Inside, the positioning plate is squeezed, bringing it close to and pressing the side wall of the pre-pressed section. This slight displacement of the positioning plate further drives the embedded section slightly towards the lens. When the embedded section abuts against the lens, it will no longer move axially (while simultaneously undergoing relative displacement with the positioning hole), thus further correcting the final position of the embedded section. By setting a cover plate including a pre-pressing plate and a rear press plate, and setting the two to be plastically connected, during coupling, the embedded section is first glued, and the pre-pressing plate is then glued to the base cover to fix the embedded section. Subsequent connections will not affect the embedded section. At this time, the tail end of the embedded section is still exposed. After the embedded section is glued and stabilized, the rear section is placed in the fiber groove, abuts against the tail end of the embedded section and is glued. Then, the rear press plate is glued to the base cover. Through the cooperation of the above features, this embedded fiber array can effectively solve the problem of slight slippage of the embedded section when the cover plate is glued. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a front view schematic diagram of a pre-embedded fiber optic array according to the present invention;

[0022] Figure 2 This is a top view of a pre-embedded fiber optic array after the cover plate has been removed.

[0023] Figure 3 This is a bottom view schematic diagram of a cover plate for a pre-embedded fiber optic array according to the present invention.

[0024] Figure 4 This is a schematic diagram of the pre-embedded fiber array of this utility model after the substrate adjustment plate has been removed.

[0025] Figure 5 This is a schematic diagram of a positioning piece for a pre-embedded fiber optic array according to the present invention.

[0026] Figure 6 This is a side sectional view of a pre-embedded fiber optic array according to the present invention.

[0027] Figure 7 This is a front view of a pre-embedded fiber optic array of this utility model when the rear pressure plate is not covered.

[0028] The attached diagram shows the markings and corresponding component names:

[0029] 10-Substrate; 11-Fiber optic groove; 12-Compensation groove; 13-Pre-compression section; 14-Post-compression section; 140-Adjustment groove; 141-Adjustment plate; 142-Pulling block; 143-Glue hole; 15-Transition cavity; 20-Positioning piece; 21-Positioning hole; 22-Elastic layer; 30-Cover plate; 31-Pre-compression plate; 311-Pressure strip; 312-Baffle; 313-Snap fastener; 32-Post-compression plate; 321-Embedded groove; 40-Embedded section; 41-Post-connection section. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0033] Example

[0034] Please refer to Figures 1 to 7As shown, this embodiment provides a pre-embedded fiber optic array, including: a substrate 10, which is a horizontally arranged rectangular plate. Multiple fiber optic slots 11 are formed on the top surface of the substrate 10. Each fiber optic slot 11 extends along the long side of the top surface of the substrate 10 and penetrates the substrate 10 at both ends. All fiber optic slots 11 are evenly spaced. A compensation slot 12 is formed on the top surface of the substrate 10. The compensation slot 12 extends along the wide side of the top surface of the substrate 10 and penetrates the substrate 10 at both ends. The substrate 10 is divided into a pre-pressing section 13 and a post-pressing section 14. The second part includes a positioning plate 20, which has multiple positioning holes 21 along its thickness direction. Each positioning hole 21 corresponds to a fiber optic groove 11, and the positioning plate 20 is detachably disposed within the compensation groove 12. The third part includes a cover plate 30, which covers the top surface of the substrate 10 to seal the fiber optic groove 11. The cover plate 30 includes a pre-pressing plate 31 and a post-pressing plate 32. The pre-pressing plate 31 is plastically connected to the rear pressing plate 32 so that the pre-pressing plate 31 and the rear pressing plate 32 can be bent relative to each other, and the crease is parallel to the length direction of the compensation groove 12. The length of the pre-pressing plate 31 is longer than the length of the pre-pressing part 13. A pressure strip 311 is protruding from the bottom surface of the pre-pressing plate 31. When the pre-pressing plate 31 and the pre-pressing part 13 are closed, the pressure strip 311 is located in the compensation groove 12. The positioning piece 20 is squeezed and clamped between the pressure strip 311 and the rear pressing plate 32. Between the side walls of the pre-compression section 13; the fourth includes multiple optical fibers, each optical fiber corresponding to an optical fiber groove 11. Each optical fiber includes a pre-embedded section 40 and a post-connection section 41. The pre-embedded section 40 is located in the corresponding optical fiber groove 11, and its two ends are located on both sides of the compensation groove 12. The pre-embedded section 40 passes through the corresponding positioning hole 21. The post-connection section 41 is located in the optical fiber groove 11 of the post-compression section 14, and the inner end of the post-connection section 41 abuts against the corresponding pre-embedded section 40.

[0035] The pre-embedded fiber optic array disclosed in this embodiment uses a rectangular plate-shaped substrate 10 with multiple fiber optic grooves 11 on its top surface, and multiple optical fibers, including pre-embedded sections 40 and post-connection sections 41, to achieve radial positioning of the optical fibers within the fiber optic grooves 11, and to allow the pre-embedded sections 40 and post-connection sections 41 to abut end-to-end within the fiber optic grooves 11. Furthermore, by providing a compensation groove 12, during adhesive bonding, excess adhesive will flow along the top surface of the fiber optic grooves 11 or the substrate 10 into the compensation groove 12, thus initially preventing the pre-embedded sections 40 from being damaged due to adhesive loss. The colloid causes slippage within the fiber optic groove 11. To address this, a positioning plate 20 with positioning holes 21 is installed, aligning each hole 21 with a fiber optic groove 11. The embedded section 40 passes through the corresponding positioning hole 21, and the friction of the hole wall of the positioning hole 21 axially limits the embedded section 40, further preventing axial slippage. Furthermore, a cover plate 30 is installed with a pressure strip 311 protruding from its bottom surface. When the cover plate 30 is closed and bonded to the substrate 10, the pressure strip 311... The positioning piece 20 is pressed into the compensation groove 12, causing it to approach and press against the side wall of the pre-compression section 13. This slight displacement of the positioning piece 20 further drives the embedded section 40 slightly towards the lens. When the embedded section 40 comes into contact with the lens, it will no longer move axially (while simultaneously undergoing relative displacement with the positioning hole 21), thus further correcting the final position of the embedded section 40. The cover plate 30 includes a pre-compression plate 31 and a rear pressure plate 32, which are plastically connected. During coupling, the embedded section 40 is first glued together, and the pre-compression plate 31 is then connected to the base 10. The pre-embedded section 40 can be fixed by adhesive bonding, and subsequent connections will not affect the pre-embedded section 40. At this time, the tail end of the pre-embedded section 40 is still exposed. After the pre-embedded section 40 is glued and stabilized, the rear connecting section 41 is placed in the fiber optic groove 11, abutting against the tail end of the pre-embedded section 40 and glued. Then, the rear pressure plate 32 is covered and glued to the substrate 10. Through the cooperation of the above features, the pre-embedded fiber optic array can effectively solve the problem that the pre-embedded section 40 of the pre-embedded fiber optic array is prone to slight slippage when the cover plate 30 is glued.

[0036] It should be noted that the triangular prism-shaped part on the left side of the substrate 10 in the figure is the lens. Since the lens part is not the inventive point of this application and is not related to the inventive point, it will not be described in detail here.

[0037] To facilitate pressing down the preload plate 31, the top of the positioning piece 20 is wedge-shaped so that the top surface is inclined.

[0038] With the above settings, the pressure strip 311 presses down on the inclined surface of the positioning piece 20, causing the positioning piece 20 to move closer to the side wall of the pre-pressing part 13.

[0039] To further increase the stroke of the positioning piece 20, an elastic layer 22 is laid on any side of the positioning piece 20, and the elastic layer 22 is sandwiched between the positioning piece 20 and the side wall of the pre-compression part 13.

[0040] With the above settings, during setup, the elastic layer 22 is first brought into contact with the side wall of the pre-compression part 13 to limit the initial position. When the positioning piece 20 is squeezed, the elastic layer 22 is compressed, thereby causing the positioning piece 20 to move further toward the pre-compression part 13, so as to drive the embedded section 40 to move toward the lens direction.

[0041] To facilitate the insertion of the optical fiber into the positioning hole 21, the positioning hole 21 extends through the bottom of the positioning piece 20; the diameter of the positioning hole 21 matches the diameter of the optical fiber.

[0042] In order to enable the subsequent section 41 to make a slight displacement in the length direction so that it can indeed abut against the pre-embedded section 40, the subsequent pressing part 14 is slidably provided with a plurality of adjustment plates 141 along the length direction of the optical fiber groove 11. The adjustment plates 141 slide in the adjustment groove 140 so that the top surface of the adjustment plate 141 is flush with the top surface of the subsequent pressing part 14. The adjustment plates 141 correspond one-to-one with the optical fiber groove 11, and the optical fiber groove 11 is partially opened on the top of the corresponding adjustment plate 141.

[0043] To facilitate the sliding adjustment plate 141, a lever 142 is provided on the top of the adjustment plate 141, and multiple grooves 321 are provided on the bottom surface of the rear pressure plate 32. The grooves 321 correspond one-to-one with the levers 142. The width of the groove 321 is slightly larger than the size of the lever 142, and the length of the groove 321 is much larger than the size of the lever 142.

[0044] In order to fix the adjustment plate 141 to the rear pressure part 14 after the adjustment is completed, the top of the adjustment plate 141 is provided with an adhesive hole 143, which extends along the length direction of the adjustment plate 141; the adhesive hole 143 and the lever 142 are respectively provided on both sides of the width direction of the optical fiber groove 11.

[0045] In order to facilitate the reconnection section 41 to approach and abut against the pre-embedded section 40, the end of the fiber optic groove 11 located in the re-pressing part 14 that communicates with the adjustment groove 140 is set in a funnel shape.

[0046] In order to guide the colloid in the adjustment tank 140, the bottom of the adjustment tank 140 is connected to the bottom of the compensation tank 12 through the transition cavity 15.

[0047] In order to close the compensation groove 12, baffles 312 are provided on both sides of the pre-pressure plate 31 in the width direction, and buckles 313 are provided on the side of the baffles 312 away from the pre-pressure plate 31; when the pre-pressure plate 31 is closed with the base 10, the buckles 313 are engaged with the bottom wall of the base 10, and the baffles 312 close both ends of the compensation groove 12.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pre-embedded fiber optic array, characterized in that, include: The substrate (10) is a horizontally arranged rectangular plate. The top surface of the substrate (10) has multiple fiber optic grooves (11). The fiber optic grooves (11) extend along the long side of the top surface of the substrate (10) and both ends penetrate the substrate (10). All the fiber optic grooves (11) are evenly spaced. The top surface of the substrate (10) has a compensation groove (12). The compensation groove (12) extends along the wide side of the top surface of the substrate (10) and both ends penetrate the substrate (10), so that the substrate (10) is divided into a pre-compression part (13) and a post-compression part (14). Positioning piece (20), the positioning piece (20) has multiple positioning holes (21) along the thickness direction, the positioning holes (21) correspond one-to-one with the optical fiber groove (11), the positioning piece (20) is detachably disposed in the compensation groove (12); Cover plate (30), the cover plate (30) is placed on the top surface of the substrate (10) to close the fiber groove (11). The cover plate (30) includes a pre-pressing plate (31) and a rear pressing plate (32). The pre-pressing plate (31) and the rear pressing plate (32) are plastically connected so that the pre-pressing plate (31) and the rear pressing plate (32) can be bent relative to each other, and the crease is parallel to the length direction of the compensation groove (12). The length of the pre-pressing plate (31) is longer than the length of the pre-pressing part (13). The bottom surface of the pre-pressing plate (31) is provided with a pressure strip (311). When the pre-pressing plate (31) and the pre-pressing part (13) are covered, the pressure strip (311) is located in the compensation groove (12). The positioning piece (20) is squeezed and clamped between the pressure strip (311) and the side wall of the pre-pressing part (13). Multiple optical fibers are provided, each corresponding to an optical fiber groove (11). Each optical fiber includes a pre-embedded section (40) and a post-connection section (41). The pre-embedded section (40) is located in the corresponding optical fiber groove (11), and its two ends are located on both sides of the compensation groove (12). The pre-embedded section (40) passes through the corresponding positioning hole (21). The post-connection section (41) is located in the optical fiber groove (11) of the rear pressure part (14), and the inner end of the post-connection section (41) abuts against the corresponding pre-embedded section (40).

2. The pre-embedded fiber optic array according to claim 1, characterized in that, The top of the positioning piece (20) is wedge-shaped so that the top surface is inclined.

3. The pre-embedded fiber optic array according to claim 2, characterized in that, An elastic layer (22) is laid on any side of the positioning piece (20), and the elastic layer (22) is sandwiched between the positioning piece (20) and the side wall of the pre-compression part (13).

4. The pre-embedded fiber optic array according to claim 3, characterized in that, The positioning hole (21) extends through the bottom of the positioning piece (20); the diameter of the positioning hole (21) matches the diameter of the optical fiber.

5. The pre-embedded fiber optic array according to claim 1, characterized in that, The rear pressing part (14) is slidably provided with multiple adjustment plates (141) along the length direction of the fiber groove (11). The adjustment plates (141) slide in the adjustment groove (140) so that the top surface of the adjustment plate (141) is flush with the top surface of the rear pressing part (14). The adjustment plate (141) corresponds one-to-one with the fiber optic slot (11), and the fiber optic slot (11) is partially opened on the top of the corresponding adjustment plate (141).

6. The pre-embedded fiber optic array according to claim 5, characterized in that, The top of the adjustment plate (141) is provided with a lever (142), and the bottom surface of the rear pressure plate (32) is provided with multiple grooves (321). The grooves (321) correspond one-to-one with the levers (142). The width of the groove (321) is slightly larger than the size of the lever (142), and the length of the groove (321) is much larger than the size of the lever (142).

7. The pre-embedded fiber optic array according to claim 6, characterized in that, The top of the adjustment plate (141) has an adhesive hole (143) that extends along the length of the adjustment plate (141). The adhesive hole (143) and the push block (142) are respectively located on both sides of the width direction of the optical fiber groove (11).

8. The pre-embedded fiber optic array according to claim 5, characterized in that, The end of the fiber optic groove (11) located in the rear pressure section (14) that is connected to the adjustment groove (140) is configured as a funnel shape.

9. The pre-embedded fiber optic array according to claim 5, characterized in that, The bottom of the adjustment groove (140) and the bottom of the compensation groove (12) are connected through the transition cavity (15).

10. The pre-embedded fiber optic array according to claim 1, characterized in that, The pre-pressing plate (31) has baffles (312) on both sides in the width direction, and the baffles (312) have buckles (313) on the side away from the pre-pressing plate (31). When the pre-press plate (31) covers the base (10), the buckle (313) engages with the bottom wall of the base (10), and the baffle (312) closes both ends of the compensation groove (12).

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