Top and bottom snap-on optical fiber V-groove

Abstract

The utility model discloses a top and bottom counter -lock formula optical fiber V groove belongs to optical fiber field, the top of fixed plate is provided with another fixed plate, and a plurality of optical fiber main parts are placed between fixed plate and fixed plate, the top of each fixed plate is equipped with a plurality of V type grooves that are arranged at equal intervals, the bottom of each fixed plate is equipped with limiting protrusion, and each limiting protrusion of fixed plate is embedded in the inside of each V type groove of bottom fixed plate after two fixed plates are assembled, the section of limiting protrusion is isosceles trapezoidal shape, and the bottom of limiting protrusion is equipped with arc groove, the embedded cooperation structure of limiting protrusion and V type groove is set up, so that the automatic, accurate horizontal and longitudinal positioning of top and bottom fixed plate can be realized when buckling, effectively avoid the optical fiber shearing stress that the traditional structure produces because of misplacement, significantly reduce the insertion loss, and improve the long -term mechanical stability and reliability of array.

Description

Technical Field

[0001] This utility model belongs to the field of optical fiber technology, specifically relating to an interlocking optical fiber V-groove. Background Technology

[0002] In the fields of fiber optic communication, fiber optic sensing, and optoelectronic device packaging, fiber optic V-grooves, as a precision positioning structure, are widely used for the high-precision arrangement and fixation of multiple optical fibers. The basic principle is to use the V-shaped groove on the substrate to achieve self-alignment of cylindrical optical fibers, and to form a stable fiber array by fastening the upper and lower cover plates. However, in practical applications, the existing interlocking V-groove structure can easily generate excessive concentrated stress in the optical fiber if there are hard spots on the contact surface when the upper and lower cover plates are fastened. This may cause micro-cracks or even crush the optical fiber. Furthermore, dust, debris, and other contaminants that are difficult to completely avoid in the assembly environment can fall into the V-groove and be pressed between the optical fiber and the groove wall during fastening. These particles can not only "push up" the optical fiber, causing its positioning center to deviate, but may also scratch the surface of the optical fiber, seriously affecting the docking accuracy and increasing signal attenuation. Utility Model Content

[0003] The purpose of this invention is to provide an interlocking fiber optic V-groove to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an interlocking fiber optic V-groove, comprising a fixing plate, with another fixing plate clamped on the top of the fixing plate, and multiple fiber optic bodies placed between the fixing plates. Each fixing plate has multiple V-grooves equidistantly arranged on its top, and each fixing plate has a limiting protrusion on its bottom.

[0005] In a preferred embodiment, after the two fixing plates are assembled, each limiting protrusion of the fixing plate is embedded inside each V-groove of the bottom fixing plate.

[0006] In a preferred embodiment, the cross-section of the limiting protrusion is an isosceles trapezoid shape, and the bottom of the limiting protrusion is provided with an arc-shaped groove.

[0007] In a preferred embodiment, each of the V-grooves has an arc-shaped guide on both sides of the top, and an escape groove at the sharp corner of the bottom of each V-groove.

[0008] In a preferred embodiment, each of the V-grooves has a triangular groove in the inner wall on both sides, and the obtuse angles of the two triangular grooves are respectively directed toward the two inclined surfaces of the V-grooves.

[0009] In a preferred embodiment, hook plates are provided on both sides of the top of the fixing plate, and hook grooves adapted to the hook plates are provided on both sides of the bottom of the fixing plate.

[0010] In a preferred embodiment, a limiting center plate is provided at the center of the top of the fixing plate, and a mating groove is provided at the center of the bottom of the fixing plate. Two fitting elastic plates adapted to the top of the limiting center plate are provided on both sides of the inner wall of the mating groove.

[0011] In a preferred embodiment, the fixing plate is an integral injection-molded structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The interlocking fiber V-groove structure, through the embedded engagement of the limiting protrusion and the V-groove, enables the upper and lower fixing plates to achieve automatic and precise lateral and longitudinal positioning when they are interlocked. This effectively avoids fiber shear stress caused by misalignment in traditional structures, significantly reduces insertion loss, and improves the long-term mechanical stability and reliability of the array. The interlocking fiber V-groove, with its isosceles trapezoidal cross-section and arc-shaped groove at the bottom, forms optimized line and point contact when in contact with the lower plate V-groove and fiber. This evenly distributes the clamping force, effectively compensates for minor tolerances in fiber diameter, prevents fiber damage caused by stress concentration, and ensures the consistency of optical performance in each channel. The interlocking fiber optic V-groove, by setting an arc-shaped guide at the top of the V-groove, an escape groove at the bottom corner, and a triangular groove in the inner wall, can not only guide the fiber optic cable into place smoothly, but also provide a space for dust and debris that are unavoidable during the assembly process, preventing particles from raising the fiber optic cable or scratching its surface, thereby greatly reducing the assembly difficulty and the requirements for a clean environment, and improving the production yield. The interlocking fiber optic V-groove, through the cooperation of the hook plate and hook groove on the side and the limiting center plate and the elastic plate at the center, forms a quick snap-locking mechanism. This structure can achieve precise alignment and firm fixation without the need for complicated external tools, simplifying the assembly process and greatly improving production efficiency. It is particularly suitable for large-scale automated mass production. When a large number of fibers need to be fixed, multiple fixing plates can be stacked, improving the practicality of the structure. Attached Figure Description

[0013] Figure 1 This is a front view of the structure of this utility model; Figure 2 for Figure 1 Enlarged view of point A; Figure 3 for Figure 1 Enlarged view of point B; Figure 4 for Figure 1 Enlarged diagram of point C.

[0014] In the diagram: 1. Fixing plate; 102. Limiting protrusion; 1021. Arc groove; 103. V-groove; 1031. Arc guide; 1032. Escape groove; 1033. Triangular groove; 104. Limiting center plate; 105. Mating groove; 106. Adhesive elastic plate; 107. Hook plate; 108. Hook groove; 2. Fiber optic body. Detailed Implementation

[0015] The present invention will be further described below with reference to the embodiments.

[0016] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0017] Please see Figures 1-4 This utility model provides an interlocking fiber optic V-groove, including a fixing plate 1, with another fixing plate 1 clamped on the top of the fixing plate 1, and multiple fiber optic bodies 2 placed between the fixing plates 1. Each fixing plate 1 has multiple V-grooves 103 equidistantly arranged on its top, and each fixing plate 1 has a limiting protrusion 102 at its bottom. After the two fixing plates 1 are assembled, each limiting protrusion 102 of the fixing plate 1 is embedded in each V-groove 103 of the bottom fixing plate 1. The limiting protrusion 102 has an isosceles trapezoidal cross section, and an arc groove 1021 is provided at the bottom of the limiting protrusion 102. Arc guides 1031 are provided on both sides of the top of each V-groove 103. An escape groove 1032 is provided at the sharp corner of the bottom of each V-groove 103. Triangular grooves 1033 are provided in the inner walls on both sides of each V-groove 103. The obtuse angles of the two triangular grooves 1033 face the two inclined surfaces of the V-groove 103 respectively. The fixing plate 1 is an integral injection molded structure. When assembling the interlocking fiber optic V-groove, multiple fiber bodies 2 are first placed one by one into the V-groove 103 of the bottom fixing plate 1. Since the top two sides of the V-groove 103 are provided with arc-shaped guide parts 1031, the arc-shaped guide parts 1031 can play a guiding role during the placement of the fiber, so that the fiber can fall into the V-groove 103 more smoothly and accurately, avoiding the fiber from getting stuck or shifting during placement, and ensuring that the fiber can be accurately positioned in the center of the V-groove 103. Align the top fixing plate 1 with the bottom fixing plate 1 and slowly snap it down. During the snapping process, the limiting protrusion 102 at the bottom of the top fixing plate 1 will gradually embed into the V-shaped groove 103 at the top of the bottom fixing plate 1. The cross-section of the limiting protrusion 102 is an isosceles trapezoid and the bottom is provided with an arc groove 1021. This design optimizes the contact method between the limiting protrusion 102, the V-shaped groove 103 and the optical fiber. The limiting protrusion 102 and the inclined surface of the V-shaped groove 103 form a line contact, and when in contact with the optical fiber, a point contact is formed. This contact method can evenly distribute the clamping force and prevent damage to the optical fiber due to excessive local pressure during the snapping process. The limiting protrusion 102 has an isosceles trapezoidal cross section and an arc groove 1021 at the bottom. When it comes into contact with the V-groove 103 of the lower plate and the optical fiber, it forms an optimized line contact and point contact, which can evenly distribute the clamping force. This way of dispersing pressure can effectively compensate for the small tolerance of the optical fiber diameter, prevent optical fiber damage caused by stress concentration, ensure the consistency of optical performance of each channel, and improve the quality of optical fiber transmission signal. The arc-shaped guide portions 1031 on both sides of the top of the V-groove 103 not only help the optical fiber to be smoothly inserted, but also guide dust, debris and other contaminants away from the key contact area between the optical fiber and the V-groove 103 to a certain extent. The escape groove 1032 at the bottom corner of the V-groove 103 and the triangular grooves 1033 in the inner walls on both sides provide a space for dust and debris that are unavoidable during the assembly process. These contaminants can enter the escape groove 1032 and the triangular groove 1033 without "raising" the optical fiber or scratching the surface of the optical fiber. This avoids the problem of optical fiber positioning center deviation and surface damage caused by the influence of contaminants, greatly reduces the assembly difficulty and the requirements for a clean environment, and improves the production yield.

[0018] Please see Figures 1-4 The top of the fixing plate 1 is provided with hook plates 107 on both sides, and the bottom of both sides of the fixing plate 1 is provided with hook grooves 108 adapted to the hook plates 107. The center of the top of the fixing plate 1 is provided with a limiting center plate 104, and the center of the bottom of the fixing plate 1 is provided with a mating groove 105. The inner walls of the mating groove 105 are provided with two elastic plates 106 adapted to the top of the limiting center plate 104 on both sides. While the upper and lower fixing plates 1 are fastened together, the hook plates 107 on both sides of the top of the top fixing plate 1 will be inserted into the hook grooves 108 on both sides of the bottom of the bottom fixing plate 1. The cooperation between the hook plates 107 and the hook grooves 108 can provide a certain fixing effect for the upper and lower fixing plates 1 from the side, prevent the upper and lower fixing plates 1 from moving relative to each other in the horizontal direction, and ensure the stability of the assembled structure in the horizontal direction. At the same time, the limiting center plate 104 at the top center of the top fixing plate 1 will be inserted into the mating groove 105 at the bottom center of the bottom fixing plate 1. The two elastic plates 106 on both sides of the inner wall of the mating groove 105 will be tightly fitted with the top of the limiting center plate 104. The elastic plates 106 have a certain elasticity and can generate a certain elastic deformation when the limiting center plate 104 is inserted, thereby tightly holding the limiting center plate 104, further enhancing the fixing effect of the upper and lower fixing plates 1 in the vertical direction, and preventing the upper and lower fixing plates 1 from separating or loosening in the vertical direction. Through the double cooperation of the side buckle and the center buckle, the precise alignment and firm fixing of the upper and lower fixing plates 1 can be completed quickly and accurately without the need for complicated external tools. When multiple optical fibers need to be fixed, multiple pre-assembled interlocking optical fiber V-groove structures can be stacked sequentially. During the stacking process, the bottom fixing plate 1 of the upper structure and the top fixing plate 1 of the lower structure are connected by the above-mentioned snap-locking method. That is, the limiting protrusion 102 of the upper bottom fixing plate 1 is embedded in the V-groove 103 of the lower top fixing plate 1. At the same time, the side hook plate 107 and the hook groove 108, the central limiting center plate 104 and the fitting elastic plate 106 cooperate to achieve a stable connection, thereby forming a multi-layer optical fiber fixing structure, which improves the capacity of optical fibers and the practicality of the structure.

[0019] The working principle and usage process of this utility model are as follows: First, multiple optical fiber bodies 2 are placed one by one into the V-shaped groove 103 of the bottom fixing plate 1. The arc-shaped guide parts 1031 on both sides of the top of the V-shaped groove 103 can guide the optical fiber to fall smoothly and accurately, and accurately position it in the center position. The top fixing plate 1 is aligned with the bottom fixing plate 1 and slowly snapped down. The limiting protrusion 102 at the bottom of the top fixing plate 1 is embedded in the V-shaped groove 103 of the bottom fixing plate 1. The limiting protrusion 102 has an isosceles trapezoidal cross section and an arc groove 1021 at the bottom. It makes contact with the inclined surface of the V-shaped groove 103 and the point contact with the optical fiber, which can evenly distribute the clamping force and prevent damage to the optical fiber. When snapping, the hook plates 1 on both sides of the top fixing plate 1 07 is inserted into the hook grooves 108 on both sides of the bottom fixing plate 1 to prevent the upper and lower fixing plates 1 from moving horizontally and to ensure horizontal stability. The center limiting plate 104 of the top fixing plate 1 is inserted into the center mating groove 105 of the bottom fixing plate 1. The elastic plate 106 on the inner wall of the mating groove 105 is tightly fitted with the top of the limiting plate 104 to enhance the vertical fixing effect and prevent separation and loosening. The double buckle does not require complicated tools and can quickly and accurately align and fix. When fixing more optical fibers, multiple assembled structures can be stacked in sequence. The upper bottom fixing plate 1 and the lower top fixing plate 1 are connected by buckle locking to form a multi-layer optical fiber fixing structure, which improves the optical fiber capacity and structural practicality.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An interlocking fiber optic V-groove, comprising a fixing plate (1), characterized in that: Another fixing plate (1) is attached to the top of the fixing plate (1). Multiple optical fiber bodies (2) are placed between the fixing plate (1) and the fixing plate (1). Each fixing plate (1) has multiple V-shaped grooves (103) arranged at equal intervals on its top and a limiting protrusion (102) on its bottom.

2. The interlocking fiber optic V-groove according to claim 1, characterized in that: After the two fixing plates (1) are assembled, each limiting protrusion (102) of the fixing plate (1) is embedded inside each V-groove (103) of the bottom fixing plate (1).

3. The interlocking fiber optic V-groove according to claim 2, characterized in that: The cross-section of the limiting protrusion (102) is an isosceles trapezoid shape, and the bottom of the limiting protrusion (102) is provided with an arc groove (1021).

4. The interlocking fiber optic V-groove according to claim 3, characterized in that: Each of the V-grooves (103) has an arc-shaped guide portion (1031) on both sides of the top, and an escape groove (1032) is provided at the sharp corner of the bottom of each V-grooves (103).

5. The interlocking fiber optic V-groove according to claim 4, characterized in that: Each of the V-grooves (103) has a triangular groove (1033) on the inner wall on both sides, and the obtuse angles of the two triangular grooves (1033) are respectively directed toward the two inclined surfaces of the V-grooves (103).

6. The interlocking fiber optic V-groove according to claim 1, characterized in that: The top two sides of the fixing plate (1) are provided with hook plates (107), and the bottom sides of the fixing plate (1) are provided with hook grooves (108) that are adapted to the hook plates (107).

7. The interlocking fiber optic V-groove according to claim 1, characterized in that: The fixed plate (1) has a limiting center plate (104) at the center of the top and a mating groove (105) at the center of the bottom. Both sides of the inner wall of the mating groove (105) are provided with two fitting elastic plates (106) that are adapted to the top of the limiting center plate (104).

8. The interlocking fiber optic V-groove according to claim 1, characterized in that: The fixing plate (1) is an integral injection molded structure.

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