Support structure and FTTR equipment

Abstract

The utility model provides a support structure and FTTR equipment, the support structure can be applied to FTTR, FTTR-B or broadband fusion terminal products, a bottom plate of the support structure is provided with at least two first support columns which are arranged at intervals, and the at least two first support columns are used for placing a lower layer PCBA board; the bottom plate of the support structure is further provided with at least two clamping pieces, and the at least two clamping pieces are oppositely arranged and used for clamping a lower PCBA board. The bottom plate of the support structure is further provided with at least two second supporting columns which are arranged at intervals, and the at least two second supporting columns are used for placing an upper PCBA board. A mounting hole is formed in the top end of the second supporting column, and a fastener is mounted in the mounting hole. According to the utility model, the lower PCBA board realizes tool-free fast installation, the upper PCBA board realizes limiting fool-proof installation, and the assembly efficiency of the upper PCBA board and the lower PCBA board is improved; and meanwhile, the lower PCBA board is fixed by adopting a clamping piece and does not need to be disassembled and assembled by using a tool, and the disassembly of the lower PCBA board is not influenced even if the upper PCBA board is not disassembled, so that the later overhaul and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of FTTR equipment, in particular to a bracket structure and FTTR equipment. Background Art

[0002] In current FTTR equipment, the stacking design of the upper and lower PCBA boards can effectively improve space utilization, but a bracket structure is required to achieve stable fixation and heat dissipation. Traditional bracket structures mostly use fully enclosed metal structures or single-material injection molding, and the upper and lower PCBA boards are fixed through multiple layers of screw holes. Screw fixing requires multiple steps, resulting in low assembly efficiency and difficult maintenance of the upper and lower PCBA boards. Utility Model Content

[0003] The utility model provides a bracket structure to solve the problems of low assembly efficiency and difficult inspection and maintenance of the existing upper PCBA board and the lower PCBA board.

[0004] A bracket structure, comprising a lower PCBA board and an upper PCBA board for mounting FTTR equipment;

[0005] At least two first pillars arranged at intervals are provided on the bottom plate of the support structure, and at least two of the first pillars are used to place the lower PCBA board;

[0006] At least two clamping members are also provided on the bottom plate of the support structure, and the at least two clamping members are arranged opposite to each other and used for clamping the lower PCBA board;

[0007] At least two second pillars are arranged at intervals on the bottom plate of the support structure, and the second pillars are located at the periphery of the first pillar. In the axial direction of the pillar, the height of the second pillar is greater than the height of the first pillar, and at least two of the second pillars are used to place the upper PCBA board;

[0008] A mounting hole is provided at the top end of the second pillar, a fastener is installed in the mounting hole, and the fastener is used to fix the upper PCBA board.

[0009] Preferably, the first pillar comprises a first cylinder and at least two first ribs spaced apart along the circumferential direction of the first cylinder;

[0010] In the axial direction of the pillar, the height of the first cylinder is greater than the height of the first rib, and at least two of the first ribs cooperate with the first cylinder to form a first mounting position, and the first mounting position is used to place the lower PCBA board;

[0011] The second pillar comprises a second cylinder and at least two second ribs arranged at intervals along the circumferential direction of the second cylinder;

[0012] In the axial direction of the pillar, the height of the second cylinder is greater than the height of the second rib, and at least two of the second ribs cooperate with the second cylinder to form a second mounting position, and the second mounting position is used to place the upper PCBA board.

[0013] Preferably, the first pillar is a conical positioning pillar, and the diameter of the conical positioning pillar gradually decreases from an end close to the bottom plate of the support structure to an end far from the bottom plate of the support structure.

[0014] Preferably, the clamping member comprises a clamping arm and a clamping protrusion, one end of the clamping arm is arranged on the bottom plate of the bracket structure, and the clamping protrusion is arranged on the other end of the clamping arm;

[0015] The clamping arm is bent or reset to put the clamping protrusion in a non-clamping state or a clamping state;

[0016] The bending angle of the clamping arm ranges from 13 degrees to 17 degrees.

[0017] Preferably, the mounting hole on the second pillar is provided with a chamfer.

[0018] Preferably, the support structure comprises a bottom plate and a vertical plate extending from one side edge of the bottom plate in a direction perpendicular to the bottom plate;

[0019] The first pillar, the second pillar and the clamping member are all arranged on the bottom plate, and the vertical plate is provided with a mounting opening, and the mounting opening is used to install the gateway interface of the upper PCBA board.

[0020] Preferably, the support structure is provided with a plurality of hollow grooves, and the plurality of hollow grooves are arranged at intervals.

[0021] An FTTR device comprises a lower PCBA board, an upper PCBA board and the support structure;

[0022] The lower PCBA board is installed on the first pillar on the bottom plate of the support structure; the upper PCBA board is installed on the second pillar on the bottom plate of the support structure.

[0023] Preferably, the lower PCBA board is provided with a first mounting groove, and the first pillar is passed through the first mounting groove, so that the lower PCBA board is installed on the lower layer of the bracket structure;

[0024] The upper PCBA board is provided with a second mounting groove, and the second pillar is passed through the second mounting groove, so that the upper PCBA board is installed on the upper layer of the bracket structure;

[0025] An avoidance groove is provided on the periphery of the lower PCBA board, and the avoidance groove is used to avoid the second pillar.

[0026] Preferably, the FTTR device further comprises a protective shell, and the support structure is detachably installed in the protective shell;

[0027] A guide rail or a guide support plate is provided on the inner wall of the protective shell, and a guide support plate or a guide rail is provided on the support structure. The guide rail and the guide support plate cooperate to provide guidance for the installation of the support structure.

[0028] The bracket structure provided by the embodiment of the utility model adopts a differentiated fixing mechanism to install and fix the lower PCBA board and the upper PCBA board. Specifically, the lower PCBA board is fixed in the lower space of the bracket structure by the cooperation of the first pillar and the clamping piece, and the upper PCBA board is fixed in the upper space of the bracket structure by the second pillar and the fastener. In this way, the lower PCBA board can be installed quickly without tools, and the upper PCBA board can be installed with limited position to prevent mistakes, thereby improving the assembly efficiency of the upper PCBA board and the lower PCBA board. At the same time, the lower PCBA board is fixed by the clamping piece, and does not need to use tools for disassembly and assembly. If the upper PCBA board is not disassembled, it will not affect the disassembly of the lower PCBA board, which is convenient for later inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 It is an isometric view of the support structure in one embodiment of the utility model;

[0031] Figure 2 This is an isometric view of an embodiment of the present invention in which the PCBA board is not assembled on the bracket structure;

[0032] Figure 3 It is a first isometric view of a PCBA board assembled on a bracket structure in one embodiment of the utility model;

[0033] Figure 4 It is a second isometric view of a PCBA board assembled on a bracket structure in one embodiment of the utility model;

[0034] Figure 5 It is an exploded diagram of the FTTR device in one embodiment of the utility model.

[0035] Among them, 1. bracket structure; 11. bottom plate; 12. vertical plate; 13. installation port; 14. hollow groove; 15. guide support plate; 2. lower PCBA board; 21. first installation groove; 22. avoidance groove; 3. upper PCBA board; 31. gateway interface; 32. second installation groove; 4. first pillar; 41. first cylinder; 42. first rib; 5. snap-in; 51. snap-in arm; 52. snap-in protrusion; 6. second pillar; 61. second cylinder; 62. second rib; 7. installation hole; 8. fastener; 9. protective shell; 91. guide rail. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "plurality" means two or more.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The utility model embodiment provides a support structure 1, which can be applied to FTTR, FTTR-B or broadband fusion terminal products. Figure 1 , Figure 2 , Figure 3 and Figure 4The support structure 1 is used to install the lower PCBA board 2 and the upper PCBA board 3 of the FTTR equipment; at least two first pillars 4 arranged at intervals are provided on the bottom plate 11 of the support structure 1, and the at least two first pillars 4 are used to place the lower PCBA board 2; at least two clamping parts 5 are also provided on the bottom plate 11 of the support structure 1, and the at least two clamping parts 5 are arranged opposite to each other and used to clamp the lower PCBA board 2; at least two second pillars 6 arranged at intervals are also provided on the bottom plate 11 of the support structure 1, and the second pillars 6 are located on the periphery of the first pillars 4, and in the axial direction of the pillars, the height of the second pillars 6 is greater than the height of the first pillars 4, and at least two second pillars 6 are used to place the upper PCBA board 3; the top of the second pillar 6 is provided with a mounting hole 7, and a fastener 8 is installed in the mounting hole 7, and the fastener 8 is used to fix the upper PCBA board 3.

[0040] As an example, the support structure can be applied to FTTR, FTTR-B or broadband converged terminal products. The support structure 1 in this example is used to install the lower PCBA board 2 and the upper PCBA board 3 of the FTTR equipment, so that the lower PCBA board 2 and the upper PCBA board 3 are stacked and installed on the support structure 1, which can effectively improve the space utilization. During installation, at least two first pillars 4 arranged at intervals are provided on the bottom plate 11 of the support structure 1. Specifically, the number of first pillars 4 is three, which are respectively arranged in the three corner areas of the bottom plate 11. At least two first pillars 4 provide support for placing the lower PCBA board 2. At the same time, the lower PCBA board 2 is mounted on the first pillars 4. The first pillars 4 can provide guidance and limit for the installation of the lower PCBA board 2 to prevent the lower PCBA board 2 from shifting. At least two clips 5 are also provided on the bottom plate 11 of the bracket structure 1. Specifically, clips 5 are provided on the three sides of the bottom plate 11. At least two clips 5 are arranged opposite to each other. In this way, the lower PCBA board 2 can be clamped by at least two clips 5 to ensure that the lower PCBA board 2 is firmly and stably fixed. At least two second pillars 6 arranged at intervals are also provided on the bottom plate 11 of the support structure 1. Specifically, the number of the second pillars 6 is four, which are respectively arranged in the four corner areas of the bottom plate 11. At least two second pillars 6 provide support for placing the upper PCBA board 3. At the same time, the upper PCBA board 3 is mounted on the second pillars 6. The second pillars 6 can provide guidance and limit for the installation of the upper PCBA board 3 to avoid the upper PCBA board 3 from being offset; the second pillars 6 are located at the periphery of the first pillars 4, and in the axial direction of the pillars, the height of the second pillars 6 is greater than the height of the first pillars 4. In this way, the lower PCBA board 2 is installed in the lower space of the support structure 1, and the upper PCBA board 3 is installed in the upper space of the support structure 1. The lower PCBA board 2 and the upper PCBA board 3 are stacked to avoid collision and interference between the two, which can effectively improve the space utilization rate. A mounting hole 7 is provided at the top end of the second pillar 6. During installation, the main body of the fastener 8 (such as a screw or a bolt) passes through the upper PCBA board 3 and is installed in the mounting hole 7. The head of the fastener 8 is clamped on the upper PCBA board 3 to fix the upper PCBA board 3 on the second pillar 6.

[0041] The bracket structure 1 in this example adopts a differentiated fixing mechanism to install and fix the lower PCBA board 2 and the upper PCBA board 3. Specifically, the lower PCBA board 2 is fixed in the lower space of the bracket structure 1 by the cooperation of the first pillar 4 and the clamping member 5, and the upper PCBA board 3 is fixed in the upper space of the bracket structure 1 by the second pillar 6 and the fastener 8. In this way, the lower PCBA board 2 is arranged to achieve tool-free quick installation, and the upper PCBA board 3 is arranged to achieve limited position and fool-proof installation, thereby improving the assembly efficiency of the upper PCBA board 3 and the lower PCBA board 2. At the same time, the lower PCBA board 2 is fixed by the clamping member 5, and does not need to use tools for disassembly and assembly. If the upper PCBA board 3 is not disassembled, it will not affect the disassembly of the lower PCBA board 2, which is convenient for later inspection and maintenance.

[0042] In one embodiment, referring to Figure 1 and Figure 2 The first pillar 4 includes a first cylinder 41 and at least two first ribs 42 arranged at intervals along the circumferential direction of the first cylinder 41; in the axial direction of the pillar, the height of the first cylinder 41 is greater than the height of the first rib 42, and at least two first ribs 42 cooperate with the first cylinder 41 to form a first mounting position, and the first mounting position is used to place the lower PCBA board 2; the second pillar 6 includes a second cylinder 61 and at least two second ribs 62 arranged at intervals along the circumferential direction of the second cylinder 61; in the axial direction of the pillar, the height of the second cylinder 61 is greater than the height of the second rib 62, and at least two second ribs 62 cooperate with the second cylinder 61 to form a second mounting position, and the second mounting position is used to place the upper PCBA board 3.

[0043] As an example, the first pillar 4 includes a first cylinder 41 and at least two first ribs 42, and the at least two first ribs 42 are components arranged at intervals along the circumferential direction of the first cylinder 41; in the axial direction of the pillar, the height of the first cylinder 41 is greater than the height of the first rib 42, and the at least two first ribs 42 cooperate with the first cylinder 41 to form a first mounting position, and the first mounting position provides convenience for placing the lower PCBA board 2; the first cylinder 41 is penetrated into the lower PCBA board 2, and can provide guidance and limitation for the installation of the lower PCBA board 2. The second pillar 6 includes a second cylinder 61 and at least two second ribs 62, and the at least two second ribs 62 are components arranged at intervals along the circumferential direction of the second cylinder 61; in the axial direction of the pillar, the height of the second cylinder 61 is greater than the height of the second rib 62, and the at least two second ribs 62 cooperate with the second cylinder 61 to form a second mounting position, and the second mounting position provides convenience for placing the upper PCBA board 3; the second cylinder 61 is penetrated in the upper PCBA board 3, and can provide guidance and limitation for the installation of the upper PCBA board 3.

[0044] In one embodiment, referring to Figure 1The first pillar 4 is a conical positioning pillar, and the diameter of the conical positioning pillar gradually decreases from one end close to the bottom plate 11 of the support structure 1 to one end far away from the bottom plate 11 of the support structure 1 .

[0045] As an example, the first pillar 4 is a conical positioning pillar, and the diameter of the conical positioning pillar gradually decreases from one end of the base plate 11 close to the support structure 1 to the end of the base plate 11 away from the support structure 1. In this way, the connection between the first pillar 4 and the lower PCBA board 2 is set as a progressive connection. The diameter tolerance of the first pillar 4 is ±0.05mm, and there is a tolerance space of ±0.5mm, which realizes stepped assembly, provides guidance and limitation for the installation of the lower PCBA board 2, and ensures that the installation of the lower PCBA board 2 is stable and reliable.

[0046] In one embodiment, referring to Figure 1 The clamping member 5 includes a clamping arm 51 and a clamping protrusion 52. One end of the clamping arm 51 is arranged on the bottom plate 11 of the support structure 1, and the clamping protrusion 52 is arranged on the other end of the clamping arm 51. The clamping arm 51 is bent or reset so that the clamping protrusion 52 is in a non-clamping state or a clamping state. The bending angle range of the clamping arm 51 is 13 degrees to 17 degrees.

[0047] As an example, the clamping member 5 includes a clamping arm 51 and a clamping protrusion 52. During installation, one end of the clamping arm 51 is set on the bottom plate 11 of the support structure 1, and the clamping protrusion 52 is set on the other end of the clamping arm 51; in this way, the operator applies external force to bend the clamping arm 51 so that the clamping protrusion 52 is in a non-clamping state, which is convenient for placing the lower PCBA board 2 on the first pillar 4 or taking it out from the first pillar 4; when the operator removes the external force, the clamping arm 51 is reset so that the clamping protrusion 52 is in a clamping state, and the lower PCBA board 2 can be fixed. The bending angle range of the clamping arm 51 is 13 degrees to 17 degrees, which can ensure the deformation ability of the clamping member 5 and avoid excessive deformation and damage of the clamping member 5. Among them, the demolding angle of the slider of the clamping protrusion 52 is optimized to 0.5 degrees to 1 degree to avoid demolding strain.

[0048] In one embodiment, the mounting hole 7 on the second pillar 6 is chamfered.

[0049] As an example, the mounting hole 7 on the second pillar 6 is provided with a chamfer, and a guiding slope is provided at the end of the fastener 8, so that the fastener 8 can be automatically aligned, providing convenience for fixing the upper PCBA board 3.

[0050] In one embodiment, referring to Figure 1The support structure 1 includes a base plate 11 and a vertical plate 12 extending from a side edge of the base plate 11 in a direction perpendicular to the base plate 11; the first pillar 4, the second pillar 6 and the clamping member 5 are all arranged on the base plate 11, and an installation port 13 is provided on the vertical plate 12, and the installation port 13 is used to install the gateway interface 31 of the upper PCBA board 3.

[0051] As an example, the support structure 1 includes a bottom plate 11 and a vertical plate 12; the vertical plate 12 is a component extending from one side of the bottom plate 11 in a direction perpendicular to the bottom plate 11; the first pillar 4, the second pillar 6 and the clamping member 5 are all arranged on the bottom plate 11, the lower PCBA board 2 is installed through the first pillar 4 and the clamping member 5, and the upper PCBA board 3 is installed through the second pillar 6 and the fastener 8; the vertical plate 12 is provided with an installation port 13, and the installation port 13 is used to install the gateway interface 31 of the upper PCBA board 3; in this way, the upper PCBA board 3 needs to be installed obliquely during installation. The specific assembly process is as follows: first, the lower PCBA board 2 is vertically installed on the first pillar 4 of the support structure 1, and fixed by the clamping member 5, and then the upper PCBA board 3 is obliquely installed on the second pillar 6 of the support structure 1, and then fixed by four fasteners 8, so that the lower PCBA board 2 and the upper PCBA board 3 are stacked and installed on the support structure 1, and the whole structure is compactly designed, which can effectively improve the space utilization. When the bracket structure 1 is manufactured, the gate position is optimized through mold flow analysis, so that the material utilization rate reaches more than 92%, which reduces the manufacturing cost and prolongs the mold life.

[0052] In one embodiment, referring to Figure 1 The support structure 1 is provided with a plurality of hollow grooves 14, and the plurality of hollow grooves 14 are arranged at intervals.

[0053] As an example, a plurality of hollow grooves 14 are provided on the support structure 1, and the plurality of hollow grooves 14 are arranged at intervals; in this way, the support structure 1 is reasonably hollowed out through simulation analysis, and the main stress-bearing area is reinforced by adding bones. Without changing the strength of the support structure 1, the strength and heat dissipation capacity of the support structure 1 can be improved (for example, at 25W power consumption, the temperature of the PCBA board in the prior art is 8°C to 12°C lower than that of the PCBA board in the traditional technology), and the material can be reduced, and more space can be used for the layout of PCBA components. Among them, the injection mold of the support structure 1 has a conformal cooling water channel design to ensure that the uniformity deviation of the cooling rate in the hollow area is less than 5%.

[0054] The utility model embodiment provides a FTTR device, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4, including a lower PCBA board 2, an upper PCBA board 3 and a bracket structure 1; the lower PCBA board 2 is installed on a first pillar 4 on a bottom plate 11 of the bracket structure 1; the upper PCBA board 3 is installed on a second pillar 6 on the bottom plate 11 of the bracket structure 1.

[0055] As an example, the FTTR device includes a lower PCBA board 2, an upper PCBA board 3 and a support structure 1; during installation, the lower PCBA board 2 is installed on the first pillar 4 on the bottom plate 11 of the support structure 1; the upper PCBA board 3 is installed on the second pillar 6 on the bottom plate 11 of the support structure 1, and specifically, at least two first pillars 4 arranged at intervals are provided on the bottom plate 11 of the support structure 1, and specifically, the number of the first pillars 4 is three, which are respectively arranged in the three corner areas of the bottom plate 11, and at least two first pillars 4 provide support for placing the lower PCBA board 2, and at the same time, the lower PCBA board 2 is mounted on the first pillars 4, and the first pillars 4 can provide guidance and limit for the installation of the lower PCBA board 2 to prevent the lower PCBA board 2 from being offset. At least two clamping parts 5 are also provided on the bottom plate 11 of the support structure 1, and specifically, clamping parts 5 are provided on the three sides of the bottom plate 11, and at least two clamping parts 5 are arranged oppositely, so that the lower PCBA board 2 can be clamped by at least two clamping parts 5 to ensure that the lower PCBA board 2 is fixed firmly and stably. At least two second pillars 6 arranged at intervals are also provided on the bottom plate 11 of the support structure 1. Specifically, the number of the second pillars 6 is four, which are respectively arranged in the four corner areas of the bottom plate 11. At least two second pillars 6 provide support for placing the upper PCBA board 3. At the same time, the upper PCBA board 3 is mounted on the second pillars 6. The second pillars 6 can provide guidance and limit for the installation of the upper PCBA board 3 to avoid the upper PCBA board 3 from being offset; the second pillars 6 are located at the periphery of the first pillars 4, and in the axial direction of the pillars, the height of the second pillars 6 is greater than the height of the first pillars 4. In this way, the lower PCBA board 2 is installed in the lower space of the support structure 1, and the upper PCBA board 3 is installed in the upper space of the support structure 1. The lower PCBA board 2 and the upper PCBA board 3 are stacked to avoid collision and interference between the two, which can effectively improve the space utilization rate. A mounting hole 7 is provided at the top end of the second pillar 6. During installation, the main body of the fastener 8 (such as a screw or a bolt) passes through the upper PCBA board 3 and is installed in the mounting hole 7. The head of the fastener 8 is clamped on the upper PCBA board 3 to fix the upper PCBA board 3 on the second pillar 6.

[0056] The bracket structure 1 in this example adopts a differentiated fixing mechanism to install and fix the lower PCBA board 2 and the upper PCBA board 3. Specifically, the lower PCBA board 2 is fixed in the lower space of the bracket structure 1 by the cooperation of the first pillar 4 and the clamping member 5, and the upper PCBA board 3 is fixed in the upper space of the bracket structure 1 by the second pillar 6 and the fastener 8. In this way, the lower PCBA board 2 is arranged to achieve tool-free quick installation, and the upper PCBA board 3 is arranged to achieve limited position and fool-proof installation, thereby improving the assembly efficiency of the upper PCBA board 3 and the lower PCBA board 2. At the same time, the lower PCBA board 2 is fixed by the clamping member 5, and does not need to use tools for disassembly and assembly. If the upper PCBA board 3 is not disassembled, it will not affect the disassembly of the lower PCBA board 2, which is convenient for later inspection and maintenance.

[0057] In one embodiment, referring to Figure 2 A first mounting groove 21 is provided on the lower PCBA board 2, and the first pillar 4 is penetrated in the first mounting groove 21, so that the lower PCBA board 2 is installed on the lower layer of the bracket structure 1; a second mounting groove 32 is provided on the upper PCBA board 3, and the second pillar 6 is penetrated in the second mounting groove 32, so that the upper PCBA board 3 is installed on the upper layer of the bracket structure 1; an avoidance groove 22 is provided on the periphery of the lower PCBA board 2, and the avoidance groove 22 is used to avoid the second pillar 6.

[0058] As an example, a first mounting groove 21 is provided on the lower PCBA board 2. During installation, the first pillar 4 is inserted into the first mounting groove 21 so that the lower PCBA board 2 is installed on the lower layer of the support structure 1. At the same time, the first pillar 4 can provide guidance and limit for the installation of the lower PCBA board 2. Among them, the first mounting groove 21 is a waist-shaped groove, which is convenient for the operator to fine-tune the position of the lower PCBA board 2. A second mounting groove 32 is provided on the upper PCBA board 3. The second pillar 6 is inserted into the second mounting groove 32 so that the upper PCBA board 3 is installed on the upper layer of the support structure 1. At the same time, the second pillar 6 can provide guidance and limit for the installation of the upper PCBA board 3. An avoidance groove 22 is provided on the periphery of the lower PCBA board 2. The avoidance groove 22 is used to avoid the second pillar 6, which facilitates the disassembly and assembly of the lower PCBA board 2.

[0059] In one embodiment, referring to Figure 5 The FTTR device also includes a protective shell 9, and the support structure 1 can be detachably installed in the protective shell 9; a guide rail 91 or a guide support plate 15 is provided on the inner wall of the protective shell 9, and a guide support plate 15 or a guide rail 91 is provided on the support structure 1, and the guide rail 91 and the guide support plate 15 cooperate to provide guidance for the installation of the support structure 1.

[0060] As an example, the FTTR device also includes a protective shell 9. During installation, the support structure 1 can be detachably installed in the protective shell 9, and the protective shell 9 provides protection for the internal structure of the FTTR device. A guide rail 91 or a guide support plate 15 is provided on the inner wall of the protective shell 9, and a guide support plate 15 or a guide rail 91 is provided on the support structure 1. The guide rail 91 cooperates with the guide support plate 15 to provide guidance for the installation of the support structure 1 and facilitate the installation and removal of the support structure 1. In addition, the reliability of the FTTR device is enhanced. After the drop test and the vibration test, the support structure 1 and the PCBA board are still well fixed, and the machine can work normally.

[0061] The specific assembly process of the FTTR device is as follows: first, the lower PCBA board 2 is vertically installed on the first pillar 4 of the bracket structure 1, and fixed by the clamping piece 5, and then the upper PCBA board 3 is obliquely installed on the second pillar 6 of the bracket structure 1, and then fixed by four fasteners 8. In this way, the bracket structure 1, the lower PCBA board 2 and the upper PCBA board 3 form the entire bracket assembly. Finally, the entire bracket assembly is slid into the protective shell 9 through the guide rail 91 and the guide support plate 15 to complete the assembly.

[0062] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A support structure, characterized in that: Used to install the lower PCBA board and upper PCBA board of FTTR equipment; At least two first pillars arranged at intervals are provided on the bottom plate of the support structure, and at least two of the first pillars are used to place the lower PCBA board; At least two clamping members are also provided on the bottom plate of the support structure, and the at least two clamping members are arranged opposite to each other and used for clamping the lower PCBA board; At least two second pillars are arranged at intervals on the bottom plate of the support structure, and the second pillars are located at the periphery of the first pillar. In the axial direction of the pillar, the height of the second pillar is greater than the height of the first pillar, and at least two of the second pillars are used to place the upper PCBA board; A mounting hole is provided at the top end of the second pillar, a fastener is installed in the mounting hole, and the fastener is used to fix the upper PCBA board.

2. The support structure according to claim 1, characterized in that: The first pillar comprises a first cylinder and at least two first ribs arranged at intervals along the circumferential direction of the first cylinder; In the axial direction of the pillar, the height of the first cylinder is greater than the height of the first rib, and at least two of the first ribs cooperate with the first cylinder to form a first mounting position, and the first mounting position is used to place the lower PCBA board; The second pillar comprises a second cylinder and at least two second ribs arranged at intervals along the circumferential direction of the second cylinder; In the axial direction of the pillar, the height of the second cylinder is greater than the height of the second rib, and at least two of the second ribs cooperate with the second cylinder to form a second mounting position, and the second mounting position is used to place the upper PCBA board.

3. The support structure according to claim 1, characterized in that: The first pillar is a conical positioning pillar, and the diameter of the conical positioning pillar gradually decreases from an end close to the bottom plate of the support structure to an end far away from the bottom plate of the support structure.

4. The support structure according to claim 1, characterized in that: The clamping member comprises a clamping arm and a clamping protrusion, one end of the clamping arm is arranged on the bottom plate of the bracket structure, and the clamping protrusion is arranged on the other end of the clamping arm; The clamping arm is bent or reset to put the clamping protrusion in a non-clamping state or a clamping state; The bending angle of the clamping arm ranges from 13 degrees to 17 degrees.

5. The support structure according to claim 1, characterized in that: The mounting hole on the second pillar is provided with a chamfer.

6. The support structure according to claim 1, characterized in that: The support structure includes a bottom plate and a vertical plate extending from one side edge of the bottom plate in a direction perpendicular to the bottom plate; The first pillar, the second pillar and the clamping member are all arranged on the bottom plate, and the vertical plate is provided with a mounting opening, and the mounting opening is used to install the gateway interface of the upper PCBA board.

7. The support structure according to claim 1, characterized in that: The support structure is provided with a plurality of hollow grooves, and the plurality of hollow grooves are arranged at intervals.

8. A FTTR device, characterized in that: It comprises a lower PCBA board, an upper PCBA board and the bracket structure according to any one of claims 1 to 7; The lower PCBA board is installed on the first pillar on the bottom plate of the support structure; the upper PCBA board is installed on the second pillar on the bottom plate of the support structure.

9. The FTTR device according to claim 8, characterized in that The lower PCBA board is provided with a first mounting groove, and the first pillar is passed through the first mounting groove, so that the lower PCBA board is installed on the lower layer of the bracket structure; The upper PCBA board is provided with a second mounting groove, and the second pillar is passed through the second mounting groove, so that the upper PCBA board is installed on the upper layer of the bracket structure; An avoidance groove is provided on the periphery of the lower PCBA board, and the avoidance groove is used to avoid the second pillar.

10. The FTTR device according to claim 8, characterized in that The FTTR device further comprises a protective shell, and the support structure is detachably mounted in the protective shell; A guide rail or a guide support plate is provided on the inner wall of the protective shell, and a guide support plate or a guide rail is provided on the support structure. The guide rail and the guide support plate cooperate to provide guidance for the installation of the support structure.

Images