A new type of fiber array with positioning pins

Abstract

The utility model relates to optical fiber array technical field, and specifically is a kind of novel optical fiber array with positioning pin, including optical fiber, positioning pin, substrate, optical fiber cover plate and positioning pin cover plate;At least two positioning pin grooves and several optical fiber grooves between positioning pin groove are provided in parallel on substrate;Optical fiber is cooperatively arranged in optical fiber groove, and positioning pin is cooperatively arranged in positioning pin groove;Optical fiber cover plate is cooperatively arranged on optical fiber, and positioning pin cover plate is cooperatively arranged on positioning pin, and gap is left between optical fiber cover plate and positioning pin cover plate;The bottom of positioning pin cover plate is provided with recess, and recess and substrate cooperate to form cavity;The positioning pin cooperatively arranged in positioning pin groove forms protruding portion that is higher than substrate, and the height of optical fiber cover plate is less than the height of protruding portion.The utility model has the advantages that: optical fiber alignment efficiency is faster, and positioning alignment is more accurate;The gap between optical fiber cover plate and optical fiber groove is adjustable, so that the diameter of optical fiber that is pressed and positioned is more diverse.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic array technology, specifically a novel fiber optic array with positioning pins. Background Technology

[0002] Fiber Array (FA) in the present technology includes: glass cover plate, optical fiber, substrate and adhesive. During production, the optical fiber is placed on the substrate and positioned by high-precision optical fiber positioning groove. Then, the glass cover plate is pressed onto the substrate and optical fiber, and adhesive is used to bond the glass cover plate, optical fiber and substrate together.

[0003] However, when it is necessary to connect two fiber arrays, each fiber in the two fiber arrays needs to be aligned one by one before connection. This requires a complex fiber array coupling operation, which requires extremely high processing precision of the fiber positioning groove on the substrate and no deviation during the coupling operation. This results in high production costs, low yield, and low production efficiency.

[0004] Therefore, there is an urgent need to design a fiber optic array that can achieve rapid positioning and coupling. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a new type of fiber optic array with positioning pins to achieve accuracy and efficiency in fiber optic array docking and reduce artificial instability factors in fiber optic array coupling.

[0006] To achieve the above objectives, a novel fiber optic array with positioning pins is designed, comprising optical fibers, positioning pins, a substrate, an optical fiber cover plate, and a positioning pin cover plate. The substrate has at least two parallel positioning pin slots and several optical fiber slots, with the optical fiber slots positioned between the positioning pin slots. Optical fibers are fitted within the optical fiber slots, and positioning pins are fitted within the positioning pin slots. The optical fiber cover plate is fitted onto the optical fibers, providing support. The positioning pin cover plate is fitted onto the positioning pins, with the positioning pins providing support. A gap exists between the optical fiber cover plate and the positioning pin cover plate. The bottom of the positioning pin cover plate has a groove, which, in conjunction with the substrate, forms a cavity to accommodate the optical fiber cover plate. The positioning pins, fitted within the positioning pin slots, form a protrusion extending above the substrate, supporting the positioning pin cover plate. The height of the optical fiber cover plate is less than the height of the protrusion.

[0007] Preferably, the present invention further includes: the exposed section of the optical fiber is fitted with an optical fiber slot.

[0008] Preferably, the present invention further includes: a positioning pin groove is provided at the bottom of the cover plate.

[0009] Preferably, the present invention further includes: the optical fiber groove is a U-shaped groove or a V-shaped groove.

[0010] Preferably, the present invention further includes: the positioning pin groove is a U-shaped groove or a V-shaped groove.

[0011] Preferably, the present invention further includes: a stepped structure on the side of the substrate away from the optical fiber cover plate.

[0012] Preferably, the present invention further includes: the kick surface of the stepped structure is an inclined surface.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] Compared to existing fiber array coupling technologies, fiber alignment is faster and more precise. By separating the positioning pin cover and the fiber cover, the gap between the fiber cover and the fiber slot is adjustable, allowing for a wider variety of fiber diameters to be pressed and positioned. This increases the adaptability of the fiber array to different fiber diameters, reduces production costs, and improves operational efficiency. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is a front view of the present invention;

[0017] In the diagram: 1. Optical fiber, 2. Positioning pin, 3. Substrate, 4. Optical fiber cover plate, 5. Positioning pin cover plate, 6. Positioning pin groove, 7. Optical fiber groove, 8. Groove, 9. Protrusion, 10. Gap, 11. Step structure. Detailed Implementation

[0018] To make the purpose, principle and structure of this utility model clearer, the following description is provided in conjunction with the accompanying drawings and specific embodiments.

[0019] Example 1:

[0020] This embodiment provides a novel fiber optic array with positioning pins, such as... Figure 1-2 As shown, it includes an optical fiber 1, a positioning pin 2, a substrate 3, an optical fiber cover plate 4, and a positioning pin cover plate 5. The top surface of the substrate 3 has two positioning pin grooves 6 arranged in parallel and several optical fiber grooves 7 located between the two positioning pin grooves.

[0021] The fiber optic cover plate 4, by fitting together with the fiber optic groove 7, limits the top and bottom of the fiber optic 1. The fiber optic 1 is embedded between the fiber optic groove 7 and the fiber optic cover plate 4, with its exposed section precisely fitting the groove of the fiber optic groove 7. The fiber optic groove 7 is a gradually narrowing groove structure, and the bottom of the fiber optic 1 is also a gradually narrowing arc structure. At least two tangent points can be generated between the fiber optic groove 7 and the fiber optic 1, and the two tangent points are symmetrical along the central axis of the fiber optic 1, thereby achieving stable limiting and support for the fiber optic 1.

[0022] The bottom of the positioning pin cover plate 5 is provided with a downward-opening groove 8. The positioning pin cover plate 5 and the surface of the substrate 3 together form a receiving cavity through the groove 8. The height of the receiving cavity is greater than the thickness of the optical fiber cover plate 4, so that the clearance gap 10 formed between the positioning pin cover plate 5 and the optical fiber cover plate 4 will not come into contact with the positioning pin cover plate 5 and the optical fiber cover plate 4 when the positioning pin cover plate 5 is pressed down, and no force will be transmitted.

[0023] The positioning pin 2 is installed in the positioning pin groove 6, which is a groove. The positioning pin 2 is a cylindrical structure. There are at least two tangent points between the positioning pin 2 and the positioning pin groove 6. The tangent points provide stable positioning and support for the positioning pin 2.

[0024] The substrate 3 is provided with a stepped structure 11, which is located perpendicular to the extension direction of the positioning pin groove 6 and the optical fiber groove 7, and its kick surface is designed with an inclination. Since the exposed section of the optical fiber 1 is located in the optical fiber groove 7, the stepped structure 11 allows a suspension drop to be generated on the substrate 3. This suspension drop can accommodate the coated section of the optical fiber 1, and the inclined design of the stepped structure 11 reduces the stress generated by the coated section of the optical fiber 1 during assembly, thereby reducing the micro-bending loss of the optical fiber 1.

[0025] Preferably, the step structure 11 has extended positioning pin grooves 6 and fiber optic grooves 7 on both the kick surface and the tread surface, and the extended positioning pin grooves 6 and fiber optic grooves 7 on the kick surface of the step structure 11 have a smooth transition.

[0026] The split cover structure allows for independent adjustment of the fiber crimping force and the diameter of the fiber to be accommodated. Combined with the clearance design, it can accommodate fibers of different diameters.

[0027] When it is necessary to connect two fiber optic arrays for assembly, follow these steps:

[0028] Step 1: Fix the two substrates 3.

[0029] Step 2: Use an automatic fiber feeding mechanism to precisely place optical fibers 1 into optical fiber slots 7.

[0030] Step 3: Install the fiber optic cover plates 4 of the two fiber optic arrays using a pneumatic pressing device.

[0031] Step 4: Apply UV-curable adhesive to the junction of optical fiber 1 and optical fiber cover plate 4 using a micro-dispensing machine.

[0032] Step 5: Insert the positioning pin 2 into the positioning pin groove 6 of the substrate 3 of the two opposing fiber arrays, with the two ends of the positioning pin 2 placed on the substrate 3 of the two fiber arrays respectively.

[0033] Step Six: Install the positioning pin cover plate 5 on the two fiber arrays respectively and apply the same force to press them together. At this time, since the applied force is the same, the degree of cooperation between the positioning pin 2 and the positioning pin groove 6 is the same, that is, the tangent point between the positioning pin 2 and the substrate 3 is the same. Under the action of the positioning pin 2, the two opposing fiber arrays generate at least four symmetrical tangent points. The multiple tangent points together ensure the coupling alignment of the opposing fiber arrays. The substrate 3 and the fiber groove 7 on the fiber array are aligned, and their fiber 1 must also be aligned.

[0034] Step 7: Use adhesive to fix the connection between the positioning pin cover plate 5 and the substrate 3 to complete the coupling alignment and fixation of the two opposing fiber arrays.

[0035] Example 2:

[0036] Preferably, based on Embodiment 1, both the fiber optic groove 7 and the positioning pin groove 6 adopt a V-shaped or U-shaped groove structure.

[0037] Example 3:

[0038] Preferably, in this embodiment, based on embodiment one, after the positioning pin 2 and the positioning pin groove 6 are engaged, the positioning pin 2 will form a protrusion 9 that is a certain height above the surface of the substrate. The height of the fiber optic cover plate 4 is set to not exceed the height of the protrusion, so that regardless of whether there is a groove 8 below the positioning pin cover plate 5, there will be a gap between it and the fiber optic cover plate 4, so as to avoid the transmission of force when the positioning pin cover plate 5 is pressed down and in contact with the fiber optic cover plate 4.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and novel concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A novel fiber optic array with positioning pins, characterized in that, Includes optical fiber, positioning pin, substrate, optical fiber cover plate, and positioning pin cover plate; At least two positioning pin slots and several optical fiber slots are provided in parallel on the substrate, with the optical fiber slots disposed between the positioning pin slots. The optical fiber is fitted inside the optical fiber slot, and the positioning pin is fitted inside the positioning pin slot. The fiber optic cover plate is fitted onto the fiber optic cable, and the fiber optic cable supports the fiber optic cover plate. The positioning pin cover plate is fitted onto the positioning pin, and the positioning pin stroke supports the positioning pin cover plate. There is a gap between the fiber optic cover plate and the positioning pin cover plate. The bottom of the positioning pin cover plate is provided with a groove, which cooperates with the substrate to form a cavity, which is used to accommodate the optical fiber cover plate. A protrusion is formed above the substrate by a positioning pin that is set in the positioning pin groove. The protrusion is used to support the positioning pin cover plate. The height of the fiber optic cover plate is less than the height of the protrusion.

2. A novel fiber optic array with positioning pins as described in claim 1, characterized in that, The exposed section of the optical fiber is fitted with the optical fiber slot.

3. A novel fiber optic array with positioning pins as described in claim 1, characterized in that, The bottom of the cover plate is provided with a positioning pin groove.

4. A novel fiber optic array with positioning pins as described in claim 1, characterized in that, The fiber optic slot is either a U-shaped slot or a V-shaped slot.

5. A novel fiber optic array with positioning pins as described in claim 1, characterized in that, The positioning pin groove is a U-shaped groove or a V-shaped groove.

6. A novel fiber optic array with positioning pins as described in claim 1, characterized in that, The substrate has a stepped structure on the side away from the optical fiber cover plate.

7. A novel fiber optic array with positioning pins as described in claim 6, characterized in that, The kick surface of the stepped structure is a slope.

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