Board structure

Abstract

The present application discloses a board structure, comprising: optical squirrel cages, a circuit board, and a panel. Each optical squirrel cage is press-fit on one side of the circuit board. A preset included angle is formed between a first side edge of the optical squirrel cage in the length direction and a side edge of a position in the circuit board at which an opening of the optical squirrel cage is located; the preset included angle is greater than 90 degrees. The panel comprises a housing and engagement spaces arranged in the housing. The engagement spaces are used to be engaged with lap joint elastic pieces of the optical squirrel cages. Each engagement space comprises: a first lap joint surface and a second lap joint surface. The first lap joint surface and the second lap joint surface are perpendicular to the plane in which the circuit board is located. The first lap joint surface and the second lap joint surface extend to form a preset included angle with a front surface of the panel. The front surface is the surface facing an optical module. By means of adjusting the orientation of the optical squirrel cages, the output orientation of optical fibers is further adjusted, so that turning of cables is adjusted from bending by 90 degrees to bending by a larger angle, the depth space of wiring of the optical fibers is reduced, and damage caused by compression on the optical fibers can be avoided while the depth of the wiring of the optical fibers is reduced.

Description

A board structure

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on January 30, 2024, with application number 202410130326.X and application name “A board structure”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of servers, and in particular to a board structure. Background Art

[0004] Servers and storage products are becoming increasingly powerful and integrated. Servers are typically arranged in cabinets, such as rack-mounted servers. The server's boards connect to optical modules for signal transmission.

[0005] In the related art, an optical cage is pressed onto a server board, and a right angle is usually formed between the optical cage and the server board.

[0006] However, due to the fixed depth of the cabinet, the space left for fiber optic routing becomes increasingly smaller after servers and storage products are placed in the cabinet. As server equipment increases in size, the fiber optic routing space will be further compressed if the cabinet depth remains unchanged. The optical squirrel cage arrangement used in related technologies means that when the fiber routing depth is small, the cabinet door may press against the fiber, affecting signal transmission.

[0007] Summary of the Invention

[0008] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below.

[0009] Some embodiments of the present application provide a board structure including: an optical mouse cage, a circuit board, and a panel;

[0010] The optical cage is pressed onto one side of the circuit board, and a preset angle is formed between a first side of the optical cage along the length direction and a side of the circuit board where the optical cage opening is located; the preset angle is greater than 90 degrees;

[0011] The panel includes a shell and a clamping space provided in the shell, wherein the clamping space is used for clamping with the overlapping spring piece of the light mouse cage;

[0012] The clamping space includes: a first overlapping surface and a second overlapping surface; the first overlapping surface and the second overlapping surface are perpendicular to the plane where the circuit board is located; the first overlapping surface and the second overlapping surface form a preset angle with the front surface of the panel after extension; the front surface is the surface facing the optical module.

[0013] Optionally, a first notch is provided on the side of the circuit board where the light cage opening is located;

[0014] The position of the first notch corresponds to the position of the overlapping spring piece of the light mouse cage, and the first notch is used to avoid the overlapping spring piece of the light mouse cage.

[0015] Optionally, grooves are provided on the upper surface of the panel facing away from the circuit board, the lower surface opposite to the upper surface, and the right side surface; the grooves are used to arrange the conductive cloth.

[0016] Optionally, the groove is a rectangular groove;

[0017] The conductive fabric is bonded in the groove and protrudes from the groove.

[0018] Optionally, the circuit board is provided with a first opening;

[0019] A second opening is provided on a side of the panel that contacts the circuit board;

[0020] After the optical mouse cage is installed in the clamping space, the first opening is aligned with the second opening, and the panel and the circuit board are connected by screws passing through the first opening and the second opening.

[0021] Optionally, the first opening is provided on both sides of an end of the circuit board close to the optical module;

[0022] The second openings are arranged on both sides of a side where the panel contacts the circuit board.

[0023] Optionally, the preset angle is greater than or equal to 100 degrees and less than or equal to 150 degrees.

[0024] Optionally, the front surface of the panel is provided with ventilation holes;

[0025] The plurality of vent holes are arranged in an array to form a vent hole array.

[0026] Optionally, a vent hole is provided at the top of the clamping space.

[0027] Optionally, a third opening is provided on the front surface of the panel; the third opening is used to connect a wrench.

[0028] Optionally, a fourth opening is provided on the left side of the panel; a fifth opening is provided at one end of the wrench;

[0029] After one end of the wrench enters the panel through the third opening, the fourth opening is aligned with the fifth opening, and the panel and the wrench are connected by rivets passing through the fourth opening and the fifth opening.

[0030] Optionally, the circuit board is further provided with a second notch;

[0031] The second notch is used to prevent the circuit board from colliding with the panel during the process of installing the circuit board on the panel.

[0032] Optionally, the second notch is in the shape of a triangle;

[0033] The hypotenuse of the triangle is connected to one of the side edges where the light cage opening is located on the circuit board and the side edges perpendicular to the side edge where the light cage opening is located on the circuit board.

[0034] Optionally, the clamping space further includes a third overlapping surface and a fourth overlapping surface;

[0035] The third lap joint surface and the fourth lap joint surface are parallel to the circuit board;

[0036] The first overlapping surface, the second overlapping surface, the third overlapping surface and the fourth overlapping surface form a clamping space; the overlapping spring pieces of the light cage abut against the overlapping surfaces to install the light cage in the clamping space of the panel.

[0037] Optionally, the optical mouse cage and the circuit board are an integrated die-casting structure.

[0038] The present application discloses a board-card structure, comprising: an optical cage, a circuit board, and a panel. The optical cage is crimped onto one side of the circuit board, with a first side of the optical cage along its length forming a preset angle with a side of the circuit board where the optical cage opening is located. The preset angle is greater than 90 degrees. The panel comprises a housing and a snap-fitting space disposed within the housing, the snap-fitting space being configured to snap-fit ​​with a snap-fitting spring of the optical cage. The snap-fitting space comprises: a first snap-fitting surface and a second snap-fitting surface. The first snap-fitting surface and the second snap-fitting surface are perpendicular to the plane of the circuit board. The first snap-fitting surface and the second snap-fitting surface extend to form a preset angle with the front surface of the panel. The front surface is the surface facing the optical module. The present application differs from the traditional layout of the optical cage on the circuit board in that the long side of the optical cage forms a 90-degree angle with the front face of the circuit board. The present application makes the angle between the long side of the optical cage and the front face of the circuit board greater than 90 degrees. This angle determines that the optical cage, optical module, and optical fiber are placed at an angle relative to the circuit board. By adjusting the orientation of the optical cage, the orientation of the optical fiber output is adjusted, and the cable bend is adjusted from a 90-degree bend to a larger angle, thereby reducing the fiber winding depth space. Even when the fiber routing depth is reduced, the fiber can be prevented from being compressed or damaged by excessive bending.

[0039] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate some embodiments of the present application or technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments.

[0041] FIG1 shows an arrangement of an optical cage on a circuit board in a related art provided by some embodiments of the present application;

[0042] FIG2 is a board structure provided by some embodiments of the present application;

[0043] FIG3 is a top view of a panel disclosed in some embodiments of the present application;

[0044] FIG4 is a front view of a panel disclosed in some embodiments of the present application;

[0045] FIG5 is a rear oblique view of a panel disclosed in some embodiments of the present application;

[0046] FIG6 is a front oblique view of a panel disclosed in some embodiments of the present application;

[0047] FIG7 is a schematic diagram of the layout of the optical cage on the circuit board after the panel and the optical cage are installed according to some embodiments of the present application;

[0048] FIG8 is a schematic diagram of the optical fiber routing depth of the present application disclosed in some embodiments of the present application;

[0049] FIG9 is a design of a first notch disclosed in some embodiments of the present application;

[0050] FIG10 is a schematic diagram of a wrench installation disclosed in some embodiments of the present application;

[0051] FIG11 is a schematic diagram of an installation direction of an optical squirrel cage disclosed in some embodiments of the present application;

[0052] FIG12 is a schematic diagram of the back side of a circuit board disclosed in some embodiments of the present application;

[0053] FIG13 is a schematic diagram of fiber routing in a complete machine application disclosed in some embodiments of the present application.

[0054] Reference numerals:

[0055] 11-circuit board, 111-first opening, 112-second notch 12-optical cage, 121-lap spring; 13-panel, 14-first notch, 15-clamping space; 151-first overlapping surface; 152-second overlapping surface; 153-third overlapping surface; 154-fourth overlapping surface; 16-vent; 17-groove; 18-conductive fabric; 19-second opening; 20-optical module; 21-optical fiber; 30-wrench; 31-rivet. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in some embodiments of the present application to clearly and completely describe the technical solutions in some embodiments of the present application. Obviously, some of the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on some embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of this application.

[0057] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims is used to describe the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after the association are in an "or" relationship. In the embodiments of the present application, the term "multiple" refers to two or more, and other quantifiers are similar.

[0058] The following is an explanation of the contents involved in the solutions provided in some embodiments of this application.

[0059] Currently, servers and storage products are becoming increasingly powerful and integrated, requiring more and more space. Given a fixed cabinet depth, the space left for fiber optic routing to the boards and cards after servers and storage devices are installed is shrinking. This contradiction has led to a growing demand for a shorter fiber optic routing depth. While the current trend is towards larger cabinets, 1000mm cabinets are still the most common depth in customer center computer rooms. Given that cabinet depth cannot be changed, increasing equipment depth inevitably compresses the fiber optic routing depth for the boards and cards.

[0060] Based on current cabinet usage, users' central computer rooms primarily utilize 1000mm cabinets, while the depth of newly released servers and storage devices has exceeded 850mm. Excluding the space left from the equipment to the cabinet's front door, the remaining depth for routing cables from servers and storage devices to the cabinet's rear door has been compressed to a critical 100mm. To maximize cabinet space utilization, cabinets are fully populated with servers and storage devices, and large bundles of optical fibers are bundled together. Without a safety margin for fiber routing, the cabinet's rear door could press against the optical fibers, potentially affecting signal transmission at best and causing breakage at worst. Because optical fiber is essentially a glass product and is extremely fragile, ensuring its winding radius is crucial to guaranteeing signal transmission stability and the lifespan of the optical fiber itself.

[0061] Current solutions to address the issue of fiber routing depth include custom short fiber pigtails. The fiber connector where it inserts into the optical module has a reinforcement structure, which is a rigid plastic sheath that is difficult to bend, hindering fiber winding at the base of the connector. Currently, custom fiber connectors with shortened rigid plastic sheaths are used to reduce the fiber routing depth after exiting the optical module. This approach is suitable for server and storage vendors who provide fiber to customers for cabinet fiber layout. However, in most practical scenarios, the cabinet fiber layout is already completed by the customer, and equipment is directly installed in the cabinet. It is difficult to require customers to replace the fiber pigtails with short fiber pigtails and re-layout the layout, making this solution difficult to promote. Another example is custom cabinet raised doors. To address insufficient fiber routing space on-site, some server and storage equipment manufacturers will customize raised doors based on the customer's cabinet door interfaces. By replacing flat doors with raised doors without changing the cabinet's main structure, the actual fiber routing space within the cabinet is increased. In practice, this requires the customer to have space to install the raised doors, which increases equipment installation costs.

[0062] Referring to Figure 1, which illustrates a related art optical cage arrangement on a circuit board, it can be seen that the optical cage 12 is arranged perpendicular to the printed circuit board 11 (PCB). After the optical fiber 21 is routed from the optical module 20, the required fiber routing depth is 100 mm. This right-angle arrangement results in a large fiber routing space requirement. Given the shrinking fiber routing space requirements, it is difficult to ensure the signal transmission quality of the optical fiber. To address these issues, a board design approach is proposed in this application. This application differs from the traditional layout of the optical cage on the circuit board in that the long side of the optical cage forms a 90-degree angle with the front face of the circuit board. This application makes the angle between the long side of the optical cage and the front face of the circuit board greater than 90 degrees. This angle determines that the optical cage, optical module, and optical fiber are placed at an angle relative to the circuit board. By adjusting the orientation of the optical cage, and thus the orientation of the optical fiber output, the cable bend is adjusted from a 90-degree bend to a larger angle, thereby reducing the fiber winding depth. Even when the fiber routing depth is reduced, it can also prevent the fiber from being compressed or damaged by excessive bending. The specific solution is as follows:

[0063] 2 and 3 , FIG2 illustrates a board structure provided by some embodiments of the present application, including: an optical cage 12, a circuit board 11, and a panel 13. The optical cage 12 is crimped onto one side of the circuit board 11, with a first longitudinal side edge of the optical cage 12 forming a predetermined angle (see the 110-degree angle formed in FIG2 ) with the side edge of the circuit board 11 where the optical cage opening is located. The predetermined angle is greater than 90 degrees. The panel 13 includes a housing and a snap-fitting space 15 disposed within the housing. The snap-fitting space 15 is configured to snap-fit ​​with a snap-fitting spring 121 of the optical cage 12. The snap-fitting space 15 includes a first snap-fitting surface 151 and a second snap-fitting surface 152. The first snap-fitting surface 151 and the second snap-fitting surface 152 are perpendicular to the plane of the circuit board 11. The first snap-fitting surface 151 and the second snap-fitting surface 152 extend to form a predetermined angle with the front surface of the panel 13, which faces the optical module 20. Furthermore, the first overlapping surface 151, the second overlapping surface 152, the third overlapping surface 153 and the fourth overlapping surface 154 form a snap-fitting space 15 for installing the light cage 12. The overlapping spring pieces 121 of the light cage 12 abut against the overlapping surfaces. A snap-fitting effect is formed between the overlapping surfaces of the snap-fitting space 15 and the overlapping spring pieces 121 of the light cage 12, thereby installing the light cage in the panel.

[0064] Specifically, referring to FIG. 2 , FIG. 2 is a layout diagram of an optical cage on a circuit board disclosed in some embodiments of the present application. It can be seen that the optical cage 12 is tilted relative to the circuit board 11, and a preset angle is formed between a first side (the left side or the right side in the first direction) of the optical cage 12 along the length direction (the direction indicated by arrow B in the figure) and the side of the circuit board 11 where the optical cage opening is located. The preset angle is 110 degrees, for example, but can also be other angles, and some embodiments of the present application are not limited thereto.

[0065] When the angle between the optical cage and the circuit board is a preset angle, the panel needs to be designed accordingly to the tilt angle of the optical cage. Referring to Figures 3 to 6, Figure 3 is a top view of a panel disclosed in some embodiments of the present application, Figure 4 is a front view of a panel disclosed in some embodiments of the present application, Figure 5 is a rear oblique view of a panel disclosed in some embodiments of the present application, and Figure 6 is a front oblique view of a panel disclosed in some embodiments of the present application. To ensure the overlap between the panel and the optical cage, the installation and fixation of the circuit board, and the insertion, removal, and fixation of the board, a snap-in space 15 is formed in the panel to be mounted with the overlapping spring clip 121 of the cage. The snap-in space 15 includes a first overlapping surface 151, a second overlapping surface 152, a third overlapping surface 153, and a fourth overlapping surface 154. To maintain consistency with the installation angle of the optical cage 12, the panel overlap surfaces at the first overlapping surface 151 and the second overlapping surface 152 are at an angle of 110 degrees to the front surface. The front surface can be the surface of the panel facing the optical module. 7 , which shows a layout of the optical cage 12 on the circuit board after the panel 13 and the optical cage 12 are installed. It can be seen that the optical cage 12 is tilted on the circuit board 11 , and the optical module 20 is inserted into the optical cage 12 tilted relative to the circuit board. Referring to FIG8 , which is a schematic diagram of the fiber routing depth of the present application disclosed in some embodiments of the present application, it can be seen that compared to the solution shown in FIG1 , the present application changes the orientation of the fiber output by changing the orientation of the optical cage 12. Taking the prior art as an example, where the angle is 90 degrees, the present application adopts a 110-degree angle. The layout of the optical cage 12 on the circuit board 11 of the present application differs from the conventional optical cage 12, where the long side of the optical cage 12 forms a 90-degree angle with the front face of the circuit board. The long side of the optical cage 12 of the present application forms a 110-degree angle with the front face of the circuit board 12. This angle determines the orientation of the optical cage 12, optical module 20, and optical fiber 21 on the circuit board 11. By adjusting the orientation of the optical fiber 21 output, the cable bend is adjusted from a 90-degree bend to a 110-degree bend, thereby reducing the fiber winding depth. This ensures the signal transmission quality of the optical fiber when the depth is small. The fiber routing changes from the traditional 90-degree bend to an obtuse-angle bend, reducing the depth space occupied by the fiber routing. This can effectively reduce the depth space occupied by the cabinet, and also provides a solution for cabinet application scenarios with limited depth.

[0066] It should be noted that the preset angle can be selected from any value in the range of 100° to 150°, which can achieve a reduction in the fiber winding depth space. For example, the preset angle can be 100 degrees, 110 degrees, 120 degrees, 130 degrees, 140 degrees, 150 degrees, etc. Those skilled in the art can set it based on the actual layout requirements of the circuit board. After changing the preset angle, the corresponding panel design and circuit board design are changed accordingly. The design of the panel and the design of the circuit board are the same as the design concept of 110 degrees listed in some embodiments of the present application, which can achieve the effect of reducing the fiber winding depth space. Some embodiments of the present application are not described here. The present application makes the angle between the long side of the optical cage and the front end of the circuit board greater than 90 degrees. This angle determines that the optical cage, optical module and optical fiber are tilted relative to the board; by adjusting the direction of the optical cage, the direction of the optical fiber output is adjusted, and the cable turn is adjusted from a 90-degree bend to a larger angle bend, thereby reducing the fiber winding depth space, so that when the fiber routing depth is reduced, the optical fiber can be prevented from being compressed or damaged by excessive bending.

[0067] In addition, the reduction of the fiber routing depth of the optical modules corresponding to 10G, 25G, 100G, 200G and all subsequent optical cages can be achieved through the design method of this solution, and the size of the circuit board and panel in the specification of this application are only used for case demonstration. As the size of the circuit board and panel increases, the number of optical cages and optical modules that can be supported will increase. For this expansion form, the board structure can be designed according to the solution concept of this application, and its design concept is the same as that of this application. At the same time, the technical solution of this application provides a new board panel solution. Different from the traditional sheet metal panel, the panel solution of this application adopts die-casting of die-cast alloy as a whole. Compared with the sheet metal panel, the die-cast alloy panel has better strength and better sealing than the sheet metal panel, and is better than the sheet metal panel solution in electromagnetic shielding performance.

[0068] In summary, the present application discloses a board structure, comprising: an optical cage, a circuit board, and a panel; the optical cage is crimped onto one side of the circuit board, and a preset angle is formed between a first side of the optical cage along the length direction and a side of the circuit board where the optical cage opening is located; the preset angle is greater than 90 degrees; the panel includes a housing and a snap-fitting space provided within the housing, the snap-fitting space being configured to snap-fit ​​with a snap-fitting spring of the optical cage; the snap-fitting space comprising: a first snap-fitting surface and a second snap-fitting surface; the first snap-fitting surface and the second snap-fitting surface are perpendicular to the plane of the circuit board; the first snap-fitting surface and the second snap-fitting surface extend to form a preset angle with the front surface of the panel; the front surface is the surface facing the optical module. The present application differs from the traditional layout of the optical cage on the circuit board in that the long side of the optical cage forms a 90-degree angle with the front face of the circuit board. The present application makes the angle between the long side of the optical cage and the front face of the circuit board greater than 90 degrees. This angle determines that the optical cage, optical module, and optical fiber are placed at an angle relative to the circuit board. By adjusting the orientation of the optical cage, the orientation of the optical fiber output is adjusted, and the cable bend is adjusted from a 90-degree bend to a larger angle, thereby reducing the fiber winding depth space. Even when the fiber routing depth is reduced, the fiber can be prevented from being compressed or damaged by excessive bending.

[0069] Optionally, referring to Figures 2 and 9, a first notch 14 is provided on the side of the circuit board 11 where the opening of the light cage 12 is located; the position of the first notch 14 corresponds to the position of the overlapping spring piece 121 of the light cage 12, and the first notch 14 is used to avoid the overlapping spring piece of the light cage.

[0070] Specifically, in the related art, the optical cage 12 is crimped onto the circuit board at a 90-degree angle, thus eliminating the need for a notch in the circuit board 11. Because the orientation of the optical cage 12 is altered in this application, if the optical cage 12 were crimped directly onto the circuit board 11, the spring element of the optical cage 12 would contact the circuit board. If the optical cage 12 were connected to the optical module 20, the optical module 20 would further squeeze the optical cage 12 against the circuit board, impacting the overall performance of the board. As shown in Figure 9, Figure 9 discloses the design of the first notch in some embodiments of this application. The optical cage 12 and the circuit board 11 are arranged at a 110-degree angle, with a corresponding first notch formed on the corresponding circuit board to avoid the overlapping spring element of the optical cage 12. The size and shape of the first notch 14 are related to the size of the preset angle formed between the optical cage 12 and the circuit board 11. During design, the first notch can be provided in accordance with the actual preset angle to avoid the overlap spring tab 121 of the optical cage 12. This application does not limit the size and design of the first notch. Specifically, this application also provides a circuit board design solution. In the area where the spring tab at the bottom of the optical cage contacts the circuit board, a notch is cut into the circuit board to avoid contact, ensuring that the overlap spring tab of the optical cage and the circuit board do not come into contact. After the circuit board assembly is installed in the panel, the spring tabs on all four sides of the optical cage fully overlap the panel, providing electromagnetic shielding. The present application differs from the traditional layout of the optical cage on the circuit board in that the long side of the optical cage forms a 90-degree angle with the front face of the circuit board. The present application makes the angle between the long side of the optical cage and the front face of the circuit board greater than 90 degrees. This angle determines that the optical cage, optical module, and optical fiber are placed at an angle relative to the board. By adjusting the orientation of the optical cage, the design of the board is simultaneously adjusted, and the orientation of the optical fiber output is adjusted, the cable bend is adjusted from a 90-degree bend to a larger angle, thereby reducing the fiber winding depth space. Even when the fiber routing depth is reduced, the fiber can be prevented from being compressed or damaged by excessive bending.

[0071] Optionally, referring to FIG. 5 and FIG. 12 , grooves 17 are provided on the upper surface of the panel 13 facing away from the circuit board 11 , the lower surface opposite to the upper surface, and the right side surface; the grooves are used to arrange the conductive cloth 18 .

[0072] Specifically, inside the server, there may be gaps between panel 13 and adjacent components. This application provides grooves 17 on the top, bottom, and right sides of the panel. Grooves 17 are designed to accommodate conductive fabric 18. Grooves 17 act as a retaining mechanism for conductive fabric 18, ensuring that it does not shift due to squeezing when circuit board 11 is inserted into the server. Conductive fabric 18 is used to fill gaps between the board structure and adjacent objects, achieving electromagnetic shielding.

[0073] Furthermore, the location and size of the groove 17 can be adjusted based on actual needs and are not limited in some embodiments of the present application. The conductive fabric 18 can be made of an elastic material and is positioned within the groove with a portion protruding from the groove to fill the gap between the board and other objects to achieve electromagnetic shielding.

[0074] Furthermore, in conjunction with the light cage and the circuit board, the present application also provides a structural solution for the panel design, that is, the matching structure of the panel, the light cage and the circuit board. The panel solution of the present application is formed in one piece using a die-cast alloy, and a lap joint surface with a bevel is designed at the light cage matching point. The bevel and the front end surface of the panel form an angle of 110 degrees, ensuring the push-in installation of the light cage and the overlapping fit of the spring clip; in addition, the panel also includes a conductive cloth groove design to ensure that the conductive cloth does not move.

[0075] Optionally, referring to FIG. 5 , the groove 17 is a rectangular groove; the conductive cloth 18 is bonded in the groove 17 , and the conductive cloth 18 protrudes from the groove.

[0076] Specifically, groove 17 can be rectangular, elliptical, or other shaped, and some embodiments of this application are not limited thereto. The conductive fabric 18 in this application is a material of a certain thickness used to fill the gap between the board and other objects. The groove 17 limits the bonding position of the conductive fabric 18, and the conductive fabric protrudes from the plane where the groove opening is located to fill the gap between the board and other objects, thereby achieving electromagnetic shielding.

[0077] Furthermore, by providing the grooves, the present invention can keep the conductive cloth in the preset position without displacement even after frequent plugging and unplugging of the board, thus ensuring the normal isolation function of the conductive cloth and avoiding the electromagnetic shielding failure caused by displacement of the conductive cloth.

[0078] Optionally, referring to Figures 5 and 9, the circuit board 11 is provided with a first opening 111; a second opening 19 is provided on the side of the panel 13 that contacts the circuit board 11; after the optical squirrel cage 12 is installed in the snap-fit ​​space 15, the first opening 111 and the second opening 19 are aligned, and the panel 13 and the circuit board 11 are connected by screws passing through the first opening 111 and the second opening 19.

[0079] Specifically, in this application, corresponding through holes are respectively provided on the panel 13 and the circuit board 11 to securely connect the panel 13 and the circuit board 11. The circuit board 11 is provided with a first opening 111, and the side of the panel 13 that contacts the circuit board 11 is provided with a second opening 19. The first opening 111 and the second opening 19 are screw holes for driving fixing screws that pass through the first opening 111 and the second opening 19 to connect the panel and the circuit board. The symmetrical arrangement of the first opening 111 and the second opening 19 ensures a secure connection between the panel 13 and the circuit board 11.

[0080] Optionally, referring to FIG. 5 and FIG. 9 , the first opening 111 is provided on both sides of one end of the circuit board close to the optical module; the second opening 19 is provided on both sides of the side where the panel contacts the circuit board.

[0081] Specifically, in the present application, corresponding through holes are respectively provided on the panel 13 and the circuit board 11 to fix the panel 13 and the circuit board 11, wherein the circuit board 11 is provided with a first opening 111, and the side of the panel 13 in contact with the circuit board 11 is provided with a second opening 19; the first opening 111 and the second opening 19 are screw holes for driving fixing screws, and the panel and the circuit board are connected by screws passing through the first opening 111 and the second opening 19. The panel 13 and the circuit board 11 are firmly connected by the symmetrically arranged first opening 111 and the second opening 19. The positions of the first opening and the second opening can be set based on actual needs, and some embodiments of the present application are not limited here.

[0082] Optionally, the preset angle is greater than or equal to 100 degrees and less than or equal to 150 degrees.

[0083] Specifically, the preset angle can be selected from any value in the range of 100° to 150°, which can achieve a reduction in the fiber winding depth space. For example, the preset angle can be 100 degrees, 110 degrees, 120 degrees, 130 degrees, 140 degrees, 150 degrees, etc. Those skilled in the art can set it based on the actual layout requirements of the circuit board. After changing the preset angle, the design of the corresponding panel and the design of the circuit board are changed accordingly. The design of the panel and the design of the circuit board are the same as the design concept of 110 degrees listed in some embodiments of the present application, which can achieve the effect of reducing the fiber winding depth space. Some embodiments of the present application are not described here. The present application makes the angle between the long side of the optical cage and the front end of the circuit board greater than 90 degrees. This angle determines that the optical cage, the optical module and the optical fiber are tilted relative to the board; by adjusting the direction of the optical cage, the direction of the optical fiber output is adjusted, and the cable turn is adjusted from a 90-degree bend to a larger angle bend, thereby reducing the fiber winding depth space, so that when the fiber routing depth is reduced, the optical fiber can be prevented from being compressed or excessively bent to cause damage.

[0084] Optionally, referring to FIG4 , ventilation holes 16 are provided on the front surface of the panel; a plurality of ventilation holes 16 are arranged in an array to form a ventilation hole array.

[0085] Optionally, referring to FIG. 4 , a vent hole 16 is provided at the top of the engaging space 15 .

[0086] Specifically, panel 13 is provided with ventilation holes 16, which are designed to allow for the exchange of hot and cold air between the boards. Ventilation holes 16 are located at the top of the connection space 15 to centrally dissipate heat from the optical cage and optical module. Proper ventilation holes ensure proper heat dissipation from the boards and ensure proper server operation.

[0087] This application differentiates the layout of the optical cage on the circuit board from the traditional layout where the long side of the optical cage is at a 90-degree angle to the front face of the circuit board. This design creates an angle greater than 90 degrees between the long side of the optical cage and the front face of the circuit board. This preset angle determines the tilted placement of the optical cage, optical module, and optical fiber relative to the circuit board. By adjusting the orientation of the optical cage, and thus the orientation of the fiber output, the cable can be bent from a 90-degree bend to a larger angle, thereby reducing the fiber winding depth. This reduces the fiber's compression or excessive bending damage even when the fiber routing depth is reduced. Furthermore, the design of ventilation holes ensures effective heat dissipation from the circuit board structure, ensuring the proper functioning of all components within the circuit board structure.

[0088] Optionally, referring to FIG. 6 and FIG. 10 , a third opening 131 is provided on the front surface of the panel 13 ; the third opening 131 is used to connect the wrench 30 .

[0089] Optionally, a fourth opening 132 is provided on the left side of the panel 13; a fifth opening is provided at one end of the wrench 30; after one end of the wrench 30 enters the interior of the panel 13 through the third opening 131, the fourth opening 132 is aligned with the fifth opening (not shown in the drawings), and the panel and the wrench are connected by a rivet 31 passing through the fourth opening 132 and the fifth opening.

[0090] Specifically, referring to Figures 6 and 10, the third opening 131 is designed to allow a wrench to be inserted into the panel, and the fourth opening 132 is a rivet hole, which fastens the wrench 30 to the panel 13. The wrench can be used to assist in inserting and removing boards, making it easier for users to plug and remove boards.

[0091] Furthermore, the rivet 31 can be a double-sided countersunk rivet, and the fourth opening can be two. When assembling the wrench to the panel, the snap position of the wrench 30 can be adjusted forward, and the wrench can be inserted through the third opening 131 on the front side of the panel 13. The fifth opening of the wrench is adjusted to align with the rivet hole of the panel, i.e., the fourth opening 132. The double-sided countersunk rivet is used, and a rivet gun is used to rivet. The assembly of the wrench and the panel is completed, making it convenient for users to plug and unplug the board. The wrench installation and fixing structure solution can achieve quick installation of the wrench.

[0092] Optionally, the circuit board is further provided with a second notch 112 ; the second notch 112 is used to prevent the circuit board 11 from colliding with the panel 13 during the process of installing the circuit board on the panel 13 .

[0093] Optionally, the second notch 112 is in the shape of a triangle; the hypotenuse of the triangle connects one of the sides where the light cage opening of the circuit board 11 is located and the sides perpendicular to the side where the light cage opening of the circuit board 11 is located.

[0094] Specifically, referring to FIG. 11 , the second notch 112 may be formed by removing a triangular portion at the location of the second notch 112 from the original circuit board.

[0095] Furthermore, when the light cage 12 is installed in the engaging space 15 of the panel 13 along the direction indicated by arrow B, if a circuit board is located at the location of the second notch 112, the circuit board and the panel may collide. Therefore, to ensure smooth installation of the circuit board in the direction indicated by arrow B on the panel 13, the second notch 112 can be provided to ensure smooth installation. Furthermore, the size of the second notch 112 can be determined based on the predetermined angle between the light cage 12 and the circuit board. When the predetermined angle is different, the size of the second notch may vary, which is not limited in some embodiments of the present application.

[0096] Furthermore, when installing the circuit board, by adjusting the optical cage on the circuit board assembly to be flush with the four overlapping surfaces formed by the panel, the optical cage is pushed horizontally into the overlapping surface of the panel, the screw holes on the circuit board assembly are aligned with the screw holes at the bottom of the panel, and the screws are tightened with an electric screwdriver to complete the assembly of the board assembly. This application distinguishes the layout of the optical cage on the circuit board from the traditional optical cage, where the long side of the optical cage is at a 90-degree angle to the front end of the circuit board; this application makes the angle between the long side of the optical cage and the front end of the circuit board greater than 90 degrees, which determines that the optical cage, optical module and optical fiber are placed at an angle relative to the board; by adjusting the orientation of the optical cage, the orientation of the optical fiber output is adjusted, and the cable turn is adjusted from a 90-degree bend to a larger angle bend, thereby reducing the fiber winding depth space, so that even when the fiber routing depth is reduced, the optical fiber can be prevented from being compressed or excessively bent to cause damage.

[0097] Optionally, referring to Figures 3 to 6, the snap-fit ​​space further includes a third overlapping surface 153 and a fourth overlapping surface 154; the third overlapping surface 153 and the fourth overlapping surface 154 are parallel to the circuit board 11; the first overlapping surface 151, the second overlapping surface 152, the third overlapping surface 153 and the fourth overlapping surface 154 form a snap-fit ​​space 15; the overlapping spring piece 121 of the light cage 12 abuts against the overlapping surface to install the light cage 12 in the snap-fit ​​space 15 of the panel 13.

[0098] Specifically, the first overlapping surface 151, the second overlapping surface 152, the third overlapping surface 153, and the fourth overlapping surface 154 form a snap-fitting space 15 for mounting the optical cage 12. The overlapping spring pieces 121 of the optical cage 12 abut against the overlapping surfaces, and the overlapping surfaces of the snap-fitting space 15 and the overlapping spring pieces 121 of the optical cage 12 form a snap-fitting effect, thereby mounting the optical cage in the panel. The present application distinguishes the layout of the optical cage on the circuit board from the traditional optical cage, which has a 90-degree angle between the long side and the front face of the circuit board. The present application makes the angle between the long side and the front face of the circuit board greater than 90 degrees. The preset angle determines that the optical cage, optical module, and optical fiber are placed at an angle relative to the board. By adjusting the direction of the panel's overlapping surface to adapt to the optical cage, the direction of the optical fiber output is adjusted, and the cable bend is adjusted from a 90-degree bend to a larger angle, thereby reducing the fiber winding depth space. Even when the fiber routing depth is reduced, the fiber can still be prevented from being compressed or damaged by excessive bending.

[0099] Optionally, the optical mouse cage and the circuit board are an integrated die-casting structure.

[0100] Specifically, the technical solution of the present application provides a new board panel solution, which is different from the traditional sheet metal panel. The panel solution of the present application adopts die-casting of die-cast alloy in one piece. Compared with the sheet metal panel, the die-cast alloy panel has better strength and better sealing than the sheet metal panel, and is better than the sheet metal panel solution in terms of electromagnetic shielding performance. The reduction of the fiber routing depth of the optical modules corresponding to 10G, 25G, 100G, 200G and all subsequent optical cages can be achieved through the design method of this solution, and the size of the circuit board and panel in the specification of this application is only for case display. As the size of the circuit board and panel increases, the number of optical cages and optical modules that can be supported will increase. For this expansion form, the board structure can be designed according to the solution concept of this application. Its design concept is the same as that of this application. Similarly, it can be implemented by the die-casting integrated molding structure in this application.

[0101] Refer to Figure 13, which is a schematic diagram of fiber routing in a whole machine application provided by some embodiments of the present application. Through the solution of the present application, taking the preset angle of 110 degrees as an example, the depth space occupied by the optical fiber is reduced from 100mm to 78mm, reducing the depth space occupied by the fiber routing of the whole machine, and can better support the scene of tight cabinet depth. That is, the technical solution of the present application provides a new optical cage layout solution. Unlike the traditional optical cage and the end face of the circuit board at a vertical angle, the solution of the present application places the optical cage at an angle, forming a certain angle with the end face of the circuit board, and the corresponding optical module and optical fiber maintain the same angle with the panel. This changes the traditional 90-degree bend of the optical fiber routing into an obtuse-angle bend, reducing the depth space occupied by the optical fiber routing, and can effectively reduce the depth space occupied by the cabinet, and also provides a solution for cabinet application scenarios with tight depth. At the same time, the present application also provides a circuit board appearance design scheme. In the area where the spring sheet at the bottom of the light cage contacts the circuit board, the circuit board is dug out to avoid it, ensuring that the overlapping spring sheet of the light cage and the circuit board have no contact. After the circuit board assembly is installed in the panel, the spring sheets on all four sides of the light cage are fully overlapped with the panel, playing the role of electromagnetic shielding. Furthermore, in conjunction with the light cage and the circuit board, the present application also provides a structural scheme for panel design, that is, the matching structure of the panel, the light cage and the circuit board. The panel scheme of the present application is formed in one piece by die-casting alloy, and a lap joint surface with an inclined surface is designed at the light cage matching position, and the inclined surface and the front end surface of the panel are 1 The 10-degree angle ensures the push-in installation of the optical cage and the overlap of the spring clips. In addition, the panel also includes a conductive cloth groove design to ensure that the conductive cloth does not move, as well as a wrench installation and fixing structure solution to achieve quick installation of the wrench and a circuit board installation and fixing structure solution, forming a board structure of the present application, which solves the problem in the related art that the optical fiber is easily damaged when the fiber running depth is small. The solution of the present application does not require the addition of other auxiliary components. By changing the orientation of the optical cage and synchronously designing the circuit board and panel to match the orientation of the optical cage, the fiber running depth is reduced. It can be applied in multiple scenarios to ensure the communication performance of the optical fiber.

[0102] It should be noted that the reduction in the fiber optic routing depth of optical modules corresponding to 10G, 25G, 100G, 200G and all subsequent optical cages can be achieved through the design method of this solution, and the size of the circuit board and panel in this application specification are only used for case demonstration. As the size of the circuit board and panel increases, the number of optical cages and optical modules that can be supported will increase. For this expansion form, the board structure can be designed according to the solution concept of this application, and its design concept is the same as that of this application.

[0103] In summary, the present application discloses a board structure, comprising: an optical cage, a circuit board, and a panel; the optical cage is crimped onto one side of the circuit board, and a preset angle is formed between a first side of the optical cage along the length direction and a side of the circuit board where the optical cage opening is located; the preset angle is greater than 90 degrees; the panel includes a housing and a snap-fitting space provided within the housing, the snap-fitting space being configured to snap-fit ​​with a snap-fitting spring of the optical cage; the snap-fitting space comprising: a first snap-fitting surface and a second snap-fitting surface; the first snap-fitting surface and the second snap-fitting surface are perpendicular to the plane of the circuit board; the first snap-fitting surface and the second snap-fitting surface extend to form a preset angle with the front surface of the panel; the front surface is the surface facing the optical module. The present application differs from the traditional layout of the optical cage on the circuit board in that the long side of the optical cage forms a 90-degree angle with the front face of the circuit board. The present application makes the angle between the long side of the optical cage and the front face of the circuit board greater than 90 degrees. This angle determines that the optical cage, optical module, and optical fiber are placed at an angle relative to the circuit board. By adjusting the orientation of the optical cage, the orientation of the optical fiber output is adjusted, and the cable bend is adjusted from a 90-degree bend to a larger angle, thereby reducing the fiber winding depth space. Even when the fiber routing depth is reduced, the fiber can be prevented from being compressed or damaged by excessive bending.

[0104] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that some embodiments of this application can be implemented in an order other than that illustrated or described herein. Furthermore, the terms "first," "second," and the like generally distinguish objects of a class and do not limit the number of objects. For example, the first object may be one or more.

[0105] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0106] The above are only preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application are included in the scope of protection of the present application.

Claims

1. A board structure, characterized in that: include: Optical mouse cages, circuit boards, panels; The optical cage is pressed onto one side of the circuit board, and a preset angle is formed between a first side of the optical cage along the length direction and a side of the circuit board where the optical cage opening is located; the preset angle is greater than 90 degrees; The panel includes a shell and a clamping space provided in the shell, wherein the clamping space is configured to be clamped with the overlapping spring piece of the light mouse cage; The clamping space includes: a first overlapping surface and a second overlapping surface; the first overlapping surface and the second overlapping surface are perpendicular to the plane where the circuit board is located; After being extended, the first overlapping surface and the second overlapping surface form a preset angle with the front surface of the panel; the front surface is a surface facing the optical module.

2. The board structure according to claim 1, wherein: A first notch is provided on the side of the circuit board where the light cage opening is located; The position of the first notch corresponds to the position of the overlapping elastic piece of the light cage, and the first notch is configured to avoid the overlapping elastic piece of the light cage.

3. The board structure according to claim 2, characterized in that: The first notch is opened based on the preset angle formed between the optical cage and the circuit board.

4. The board structure according to claim 2, characterized in that: The overlapping spring pieces of the optical cage are configured to fully overlap with the panel after the circuit board is installed in the panel to achieve electromagnetic shielding.

5. The board structure according to claim 1, characterized in that: The panel is provided with grooves on its upper surface facing away from the circuit board, its lower surface opposite to the upper surface, and its right side; the grooves are configured to accommodate conductive cloth.

6. The board structure according to claim 5, characterized in that: The groove is a rectangular groove; The conductive cloth is bonded in the groove and protrudes from the groove.

7. The board structure according to claim 6, characterized in that: The conductive cloth is configured to fill the gaps to achieve electromagnetic shielding.

8. The board structure according to claim 1, wherein: The circuit board is provided with a first opening; A second opening is provided on a side of the panel that contacts the circuit board; After the optical cage is installed in the clamping space, the first opening is aligned with the second opening, and the panel and the circuit board are connected by screws passing through the first opening and the second opening.

9. The board structure according to claim 8, characterized in that: The first opening is provided on both sides of an end of the circuit board close to the optical module; The second openings are arranged on both sides of a surface of the panel that contacts the circuit board.

10. The board structure according to claim 1, wherein: The preset angle is greater than or equal to 100 degrees and less than or equal to 150 degrees.

11. The board structure according to claim 1, wherein: The front surface of the panel is provided with ventilation holes; The plurality of vent holes are arranged in an array to form a vent hole array.

12. The board structure according to claim 1, wherein: A vent hole is provided on the top of the clamping space.

13. The board structure according to claim 1, wherein: The front surface of the panel is provided with a third opening; the third opening is configured to connect a wrench.

14. The board structure according to claim 13, characterized in that: A fourth opening is provided on the left side of the panel; a fifth opening is provided at one end of the wrench; After one end of the wrench enters the interior of the panel through the third opening, the fourth opening is aligned with the fifth opening, and the panel and the wrench are connected by rivets passing through the fourth opening and the fifth opening.

15. The board structure according to claim 14, characterized in that: The rivet is a double-sided countersunk rivet, there are two fourth openings, and the wrench is configured to assist in the insertion and removal of the board.

16. The board structure according to claim 1, characterized in that: The circuit board is further provided with a second notch; The second notch is configured to prevent the circuit board from colliding with the panel when the circuit board is installed on the panel.

17. The board structure according to claim 16, characterized in that: The shape of the second notch is a triangle; The hypotenuse of the triangle is connected to one of the side edges where the light cage opening is located on the circuit board and the side edges perpendicular to the side edge where the light cage opening is located on the circuit board.

18. The board structure according to claim 17, characterized in that: The size of the second notch is determined by the size of the preset angle between the optical cage and the circuit board.

19. The board structure according to claim 1, wherein: The clamping space further includes a third overlapping surface and a fourth overlapping surface; The third overlapping surface and the fourth overlapping surface are parallel to the circuit board; The first overlapping surface, the second overlapping surface, the third overlapping surface and the fourth overlapping surface form a clamping space; the overlapping elastic pieces of the light cage abut against the overlapping surfaces to install the light cage in the clamping space of the panel.

20. The board structure according to claim 1, wherein: The optical cage and the circuit board are die-cast integrated structures.

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