Optical fiber array

Abstract

The utility model discloses a fiber array belongs to optical element field, and the bottom plate and the cover plate are made of glass, and it is difficult to be influenced by high temperature and deform, the bottom plate includes the main part and the boss that extends from the main part, the first locating groove part is located on the boss and first locating groove extends from the bottom plate one end to the other end of bottom plate, and the second locating groove is all located in the boss, and the cover plate is equipped with the third locating groove, and the length of cover plate is less than the length of bottom plate, and the cover plate is pasted to the bottom plate, and the third locating groove is corresponding with the first locating groove position and forms the first mounting hole, and the guide needle part is fixed in the first mounting hole, and the second locating groove forms the second mounting hole with the bottom surface of cover plate, and the fiber part is fixed in the second mounting hole, and the part of fiber that extends from the second mounting hole is suspended in the bottom plate, and the contact area of fiber and bottom plate is reduced, and the influence of bottom plate deformation on fiber is reduced, and the first locating groove and the second locating groove position fiber and guide needle, and the installation precision is high.

Description

Technical Field

[0001] This utility model relates to optical elements, and more particularly to fiber optic arrays. Background Technology

[0002] With the ever-increasing demand for data centers, the simultaneous operation of numerous servers and network devices generates significant heat. Their internal temperatures are typically high and highly variable, placing higher demands on the high-temperature resistance of fiber optic arrays. Similarly, in telecommunications networks, fiber optic arrays must operate under various harsh environmental conditions, including high temperatures, low temperatures, and humidity. For example, in outdoor communication base stations or fiber-to-the-home (FTTH) networks, products are exposed to extreme weather conditions, and temperature can affect their performance and lifespan. Furthermore, industrial environments often exhibit high temperatures. For instance, after fiber optic arrays are coupled to chips, the PCBs in the photoelectric conversion modules often require reflow soldering, causing localized high temperatures. Therefore, it is crucial to fully consider the operating environment temperature to ensure stable operation.

[0003] Existing fiber optic arrays are typically made of plastic, and the coefficient of thermal expansion of plastic is much higher than that of optical fiber itself. Under different temperature conditions, the expansion or contraction of the ferrule can cause the optical fiber to protrude or concave, which may create air gaps when the optical fibers are connected, affecting the transmission quality of optical signals. When used in high-temperature environments, plastic is prone to deformation, causing the adhesive used for bonding inside the MT ferrule to delaminate and peel off, resulting in the failure of the overall stability of the product.

[0004] Although existing technologies include setting positioning grooves on the base plate and installing optical fibers in the positioning grooves to increase the stability of the optical fibers, the stability of the guide pins is still not high. In addition, the base plate is designed as a whole, which causes the optical fibers to be completely attached to the base plate and is greatly affected by the deformation of the base plate. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, one of the objectives of this utility model is to provide a fiber optic array that is stable, not prone to failure, and has high precision.

[0006] One of the objectives of this utility model is achieved through the following technical solution:

[0007] An optical fiber array includes a base plate, a cover plate, guide pins, and optical fibers. The base plate and the cover plate are made of glass. The base plate includes a main body and a boss extending from the main body. The base plate has a first positioning groove and a second positioning groove. The second positioning groove is parallel to the first positioning groove. The length of the first positioning groove is greater than the length of the second positioning groove. The first positioning groove is partially located on the boss and extends from one end of the base plate to the other end. The second positioning groove is entirely located on the boss. The cover plate has a third positioning groove. The length of the cover plate is less than the length of the base plate. The cover plate is fitted to the base plate. The third positioning groove corresponds to the position of the first positioning groove and forms a first mounting hole. The guide pin is partially fixed in the first mounting hole. The second positioning groove and the bottom surface of the cover plate form a second mounting hole. The optical fiber is partially fixed in the second mounting hole. The portion of the optical fiber extending from the second mounting hole is suspended from the base plate.

[0008] Furthermore, the first positioning groove, the second positioning groove, and the third positioning groove are all V-shaped, the first mounting hole has a rhomboid cross-section, and the second mounting hole has a triangular cross-section.

[0009] Furthermore, there are multiple second positioning grooves, which are parallel to each other and spaced apart, and a mating surface is formed between adjacent second positioning grooves. The mating surface is a plane.

[0010] Furthermore, there are two first positioning slots, which are parallel to each other, and there are multiple second positioning slots, which are located between the two first positioning slots.

[0011] Furthermore, the depth of the first positioning groove is greater than the depth of the second positioning groove.

[0012] Furthermore, the depth of the first positioning groove is greater than the height of the boss.

[0013] Furthermore, the boss is located at one end of the upper surface of the body, and a recess is formed at the other end of the upper surface of the body, and the first positioning groove extends from the boss to the recess.

[0014] Furthermore, each of the optical fibers extends from the second mounting hole and is suspended in the recess.

[0015] Furthermore, the boss and the surface of the recess are connected by an inclined surface.

[0016] Furthermore, the surface of the recessed portion is planar.

[0017] Compared to existing technologies, the base plate and cover plate of this utility model's fiber optic array are made of glass. The base plate includes a main body and a boss extending from the main body. The base plate has a first positioning groove and a second positioning groove, the second positioning groove being parallel to the first positioning groove. The length of the first positioning groove is greater than the length of the second positioning groove. The first positioning groove is partially located on the boss and extends from one end of the base plate to the other end. The second positioning groove is entirely located on the boss. The cover plate has a third positioning groove. The length of the cover plate is less than the length of the base plate. The cover plate fits against the base plate. The third positioning groove is parallel to the first positioning groove. The slot positions correspond to and form the first mounting hole. The guide pin is fixed in the first mounting hole. The second positioning slot and the bottom surface of the cover plate form the second mounting hole. The optical fiber is fixed in the second mounting hole. The part of the optical fiber extending from the second mounting hole is suspended in the base plate. Through the above design, the base plate and the cover plate are made of glass and are not easily deformed by high temperature. The first positioning slot and the second positioning slot position the optical fiber and the guide pin, and the installation accuracy is high. The part of the optical fiber extending from the second mounting hole is suspended in the base plate, which reduces the contact area between the optical fiber and the base plate and reduces the impact of the base plate deformation on the optical fiber. Attached Figure Description

[0018] Figure 1 This is a perspective view of the fiber optic array of this utility model;

[0019] Figure 2 for Figure 1 Another perspective stereoscopic view of the fiber optic array;

[0020] Figure 3 for Figure 1 A three-dimensional view of the base plate of the fiber optic array;

[0021] Figure 4 for Figure 1 A three-dimensional view of the cover plate of the fiber optic array;

[0022] Figure 5 for Figure 1 A three-dimensional diagram of the internal structure of a fiber optic array;

[0023] Figure 6 for Figure 1 A three-dimensional cross-sectional view of the fiber optic array.

[0024] In the figure: 10, base plate; 11, main body; 12, boss; 13, recess; 14, first positioning groove; 15, second positioning groove; 16, mating surface; 20, cover plate; 21, third positioning groove; 30, guide pin; 40, optical fiber; 50, first mounting hole; 60, second mounting hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figures 1 to 2 This utility model's fiber optic array includes a base plate 10, a cover plate 20, guide pins 30, and optical fibers 40. The base plate 10 and cover plate 20 are made of glass, which is stable and can prevent deformation caused by high environmental temperatures. Specifically, the base plate 10 and cover plate 20 are made of BF33 glass. The guide pins 30 and optical fibers 40 are installed between the base plate 10 and cover plate 20 and fixed with adhesive. There are two guide pins 30, which are parallel to each other, and multiple optical fibers 40, which are parallel to each other and located between two guide pins 30.

[0029] Please continue reading. Figure 3 The base plate 10 includes a main body 11 and a boss 12 extending from the main body 11. The boss 12 is located on one side of the upper surface of the main body 11 and is integrally formed with the main body 11. Specifically, both the main body 11 and the boss 12 are flat cuboids. The width of the boss 12 is the same as the width of the main body 11, and the length of the boss 12 is less than the length of the main body 11. A recess 13 is formed on the side of the boss 12. The recess 13 is located on the upper surface of the main body 11. The upper surface of the main body 11 is flat, and the upper surface of the boss 12 is flat. The upper surface of the boss 12 and the upper surface of the main body 11 are connected by a slope.

[0030] The base plate 10 is provided with a first positioning groove 14 and a second positioning groove 15. The first positioning groove 14 is used to install the guide pin 30, and the second positioning groove 15 is used to install the optical fiber 40. Specifically, there are two first positioning grooves 14, which are located on both sides of the base plate 10 and are parallel to each other. Each first positioning groove 14 extends from one end of the base plate 10 to the opposite end. That is, each first positioning groove 14 extends from the boss 12 to the recess 13, so the depth of the first positioning groove 14 is greater than the height of the boss 12. In this embodiment, the cross-section of the first positioning groove 14 is V-shaped. There are multiple second positioning grooves 15, which are parallel to each other and located between two first positioning grooves 14. The multiple second positioning grooves 15 are spaced apart from each other, and a mating surface 16 is formed between adjacent second positioning grooves 15. The mating surface 16 is mated to the bottom surface of the cover plate 20 and fixed with adhesive.

[0031] Please continue reading. Figure 4 The cover plate 20 is provided with a third positioning groove 21, which is used to position the guide pin 30. There are two third positioning grooves 21, which are located on both sides of the cover plate 20 and their positions correspond to the positions of the first positioning groove 14. The cross-section of the third positioning groove 21 is V-shaped.

[0032] Please continue reading. Figure 5 as well as Figure 6 When assembling the fiber array, the fiber 40 is placed in the second positioning groove 15, and the guide pin 30 is placed in the first positioning groove 14. The cover plate 20 is attached to the boss 12 of the base plate 10. At this time, the first positioning groove 14 and the third positioning groove 21 form the first mounting hole 50. The guide pin 30 is partially located in the first mounting hole 50, and both ends of the guide pin 30 extend out from both ends of the first mounting hole 50. The cross-section of the first mounting hole 50 is rhomboid. In this embodiment, the cross-section of the first mounting hole 50 is square. The second positioning groove 15 is attached to the bottom surface of the cover plate 20 to form the second mounting hole 60. Each fiber 40 is partially located in the second mounting hole 60, and both ends of each fiber 40 extend out from the second mounting hole 60. The portion of each fiber 40 located at the recess 13 is suspended, which reduces the contact area between the base plate 11 and the fiber 40 and reduces the impact of deformation of the base plate 11 on the fiber 40.

[0033] The base plate 10 and cover plate 20 of the fiber array in this application are made of glass and are not easily deformed by high temperature. The first positioning groove 14 and the second positioning groove 15 position the fiber 40 and the guide pin 30, with high installation accuracy. The part of the fiber 40 extending from the second mounting hole 60 is suspended in the base plate 10, which reduces the contact area between the fiber 40 and the base plate 10 and reduces the impact of the deformation of the base plate 10 on the fiber 40.

[0034] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. An optical fiber array, comprising a base plate, a cover plate, guide pins, and optical fibers, characterized in that: The base plate and the cover plate are made of glass. The base plate includes a main body and a boss extending from the main body. The base plate has a first positioning groove and a second positioning groove. The second positioning groove is parallel to the first positioning groove. The length of the first positioning groove is greater than the length of the second positioning groove. The first positioning groove is partially located on the boss and extends from one end of the base plate to the other end. The second positioning groove is entirely located on the boss. The cover plate has a third positioning groove. The length of the cover plate is less than the length of the base plate. The cover plate fits against the base plate. The third positioning groove corresponds to the position of the first positioning groove and forms a first mounting hole. The guide pin is fixed in the first mounting hole. The second positioning groove and the bottom surface of the cover plate form a second mounting hole. The optical fiber is fixed in the second mounting hole. The portion of the optical fiber extending from the second mounting hole is suspended from the base plate.

2. The fiber optic array according to claim 1, characterized in that: The first positioning groove, the second positioning groove, and the third positioning groove are all V-shaped, the first mounting hole has a rhomboid cross-section, and the second mounting hole has a triangular cross-section.

3. The fiber optic array according to claim 1, characterized in that: The number of the second positioning grooves is multiple, and the multiple second positioning grooves are parallel to each other and spaced apart. A mating surface is formed between two adjacent second positioning grooves, and the mating surface is a plane.

4. The fiber optic array according to claim 1, characterized in that: There are two first positioning slots, which are parallel to each other. There are multiple second positioning slots, which are located between the two first positioning slots.

5. The fiber optic array according to claim 1, characterized in that: The depth of the first positioning groove is greater than the depth of the second positioning groove.

6. The fiber optic array according to claim 1, characterized in that: The depth of the first positioning groove is greater than the height of the boss.

7. The fiber optic array according to claim 6, characterized in that: The boss is located at one end of the upper surface of the body, and a recess is formed at the other end of the upper surface of the body. The first positioning groove extends from the boss to the recess.

8. The fiber optic array according to claim 7, characterized in that: Each of the optical fibers extends from the second mounting hole and is suspended in the recess.

9. The fiber optic array according to claim 7, characterized in that: The boss and the surface of the recess are connected by an inclined surface.

10. The fiber optic array according to claim 9, characterized in that: The surface of the recessed portion is flat.

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