A general protection plate for a machine disc PCB

Abstract

The utility model relates to communication equipment field discloses a kind of general protective plate of machine disc PCB, including protective plate main body, the edge of protective plate main body is provided with multiple studs matched with the screw hole of PCB;The left and right sides of the protective plate main body are respectively provided with bending edge, and the end of the bending edge of left and right sides is symmetrically provided with positioning block, and every bending edge is provided with heat dissipation hole array;The front and back sides of the protective plate main body are respectively provided with the limit plate that projects outward. Since the stud of general protective plate is distributed in periphery, it is not adapted due to the different layout of electronic device on PCB, and it is strong in versatility, and when general protective plate is assembled to machine disc, one end of limit plate extending outward is abutted to the inner side of machine disc panel, to prevent general protective plate from displacement.

Description

Technical Field

[0001] This utility model relates to the field of communication equipment technology, and in particular to a universal protective plate for a chassis PCB board. Background Technology

[0002] With the increasing speed and processing power of communication equipment, the number of components on internal card-type chassis is growing, and more electronic components are being placed on the back of the PCB. Due to the height limitations of communication equipment, components on the back of the chassis are easily scratched off during insertion and removal, necessitating protection for these components. For standard large chassis (width ≥ 400mm), PCB protection boards require at least 10 sets of screws and studs for fixation due to their large span. Because different chassis have different functions, different optical / electrical modules are installed on the chassis panel, and the positions of these modules vary. Furthermore, the internal component layouts also differ, leading to inconsistent screw and stud installation positions. Different chassis require custom-made protection boards, making cross-model compatibility impossible.

[0003] Therefore, there is an urgent need to design a protective board suitable for large-size PCBs with densely packed electronic components. Summary of the Invention

[0004] The purpose of this utility model is to provide a universal protective board for chassis PCBs with strong versatility, which is suitable for large-size chassis and PCBs with different rear electronic component arrangements.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A universal protective board for a chassis PCB board, comprising a protective board body 1; The edge of the protective plate body 1 is provided with a plurality of studs 2 that match the screw holes 8 of the PCB board; The protective plate body 1 has bending edges 3 on the left and right sides respectively, and positioning blocks 4 are symmetrically arranged at the ends of the bending edges 3 on the left and right sides. Each bending edge 3 has a heat dissipation hole array 6. The protective plate body 1 has outwardly protruding limiting plates 5 on its front and rear sides respectively.

[0006] Furthermore, the main body 1 of the protective plate is a rectangular flat plate; Multiple studs 2 are distributed at the four corners and along the long side of the rectangular plate.

[0007] Furthermore, the number of studs 2 is 5-8.

[0008] Furthermore, both the left and right bends are right-angle bends perpendicular to the main body 1 of the protective plate, and their heights are equal.

[0009] Furthermore, a first positioning block 4 is provided at the front end of the top of the left bent edge, and a second positioning block 4 is symmetrically provided at the rear end of the top of the right bent edge.

[0010] Furthermore, when the universal protective plate is assembled with the PCB board, the first positioning block 4 and the second positioning block 4 are respectively matched and embedded in the positioning holes 7 on the PCB board so that the stud 2 corresponds to the screw hole 8 on the PCB board, and the multiple surface mount pads 9 on the back of the PCB board abut against the plane of the protective plate body 1.

[0011] Furthermore, the heat dissipation hole array 6 consists of multiple heat dissipation through holes arranged along the length direction of the bent edge 3.

[0012] Furthermore, one end of the limiting plate 5 is connected to the protective plate body 1, and the other end extends outward at a 30-45° angle to the protective plate body 1.

[0013] Furthermore, when the universal protective plate and PCB board are assembled onto the chassis, one end of the limiting plate 5 extending outward abuts against the inner side of the chassis panel 10.

[0014] Furthermore, the universal protective plate is a one-piece molded structure.

[0015] The technical effects and advantages of this utility model are as follows: (1) The universal protective plate is equipped with standardized edge studs that match the screw holes on the edge of the PCB. The universal protective plate and the PCB are locked together by the stud and screw connection assembly, which not only reduces the number of studs and screws used, but also eliminates the need for customized protective plates and frees up PCB layout space because the studs of the universal protective plate are distributed on the periphery. (2) The universal protective plate uses symmetrically arranged positioning blocks on the left and right bent edges to achieve pre-positioning of the PCB board assembly, avoiding stud offset that could cause the parts on the back of the PCB board to be bumped during assembly; (3) The bending edges on the left and right sides of the general protective plate are provided with an array of heat dissipation holes. The heat dissipation holes run through the front and back of the equipment heat dissipation air duct to improve the heat dissipation efficiency of the back of the PCB board. (4) The front and rear sides of the universal protective plate are provided with outward protruding limiting plates. When the universal protective plate is assembled onto the chassis, the end of the limiting plate that extends outward abuts against the inner side of the chassis panel to prevent the universal protective plate from shifting.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the general protective plate according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the bent edge structure of the general protective plate according to an embodiment of this utility model; Figure 3 This is an enlarged schematic diagram of the positioning block in an embodiment of the present utility model; Figure 4 This is a side view of the general protective plate according to an embodiment of the present utility model; Figure 5 for Figure 4 Side view of the center positioning block and the limiting plate; Figure 6 This is a schematic diagram of the back of the PCB board according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the assembly of the PCB board and the general protective board according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the assembly of the general protective plate and the chassis panel in an embodiment of this utility model; 1. Protective plate body; 2. Stud; 3. Bending edge; 4. Positioning block; 5. Limiting plate; 6. Heat dissipation hole array; 7. Positioning hole; 8. Screw hole; 9. Surface mount pad; 10. Chassis panel; 60. Heat dissipation through hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] To address the shortcomings of existing technologies, such as Figures 1 to 5As shown, this utility model discloses a universal protective plate for a chassis PCB board, the universal protective plate including a protective plate body 1. The edge of the protective plate body 1 is provided with a plurality of studs 2 that match the screw holes 8 of the PCB board. The left and right sides of the protective plate body 1 are respectively provided with bent edges 3, and the ends of the bent edges 3 on the left and right sides are symmetrically provided with positioning blocks 4, and each bent edge 3 has a heat dissipation hole array 6. The front and rear sides of the protective plate body 1 are respectively provided with outwardly protruding limiting plates 5.

[0021] In this embodiment, the protective plate body 1 is a rectangular flat plate, and the width of the rectangular protective plate body 1 is suitable for a chassis ≥400mm. Specifically, multiple studs 2 are distributed at the four corners and along the long side of the rectangular flat plate. Preferably, the number of studs 2 is 5-8. Figure 1 As shown, a total of 6 studs 2 are provided at the four corners of the rectangular plane of the general protective plate and along the edge of the front long side.

[0022] Preferably, both the left and right bends are perpendicular to the main body 1 of the protective plate. The left and right bends are right-angle bends with equal height, which can effectively improve the support strength of the general-purpose protective plate. A first positioning block is provided at the front end of the top of the left bend, and a second positioning block is symmetrically provided at the rear end of the top of the right bend.

[0023] like Figure 6 As shown, the PCB board is provided with two positioning holes 7 that are adapted to the positioning block 4. When the PCB board is assembled onto the universal protective plate, the first positioning block and the second positioning block are respectively matched and embedded in the positioning holes 7 on the PCB board so that the stud 2 corresponds to the screw hole 8 on the PCB board and the multiple surface mount pads 9 on the back of the PCB board abut against the plane of the protective plate body 1.

[0024] Specifically, when the first and second positioning blocks are respectively matched and embedded in the positioning holes 7 on the PCB board, the positions of the multiple studs 2 on the edge of the protective plate body 1 correspond one-to-one with the screw holes 8 on the PCB board. In this embodiment, the universal protective plate uses the positioning blocks 4 symmetrically arranged on the bent edges 3 on both sides to achieve pre-positioning of the PCB board during assembly, avoiding the studs 2 from shifting and causing them to bump into the parts on the back of the PCB board during assembly. Then, the screws are passed through the screw holes 8 on the PCB board and the studs 2 on the protective plate body 1 in sequence to fix the PCB board to the universal protective plate. Figure 7 This is an assembly diagram of the PCB board and the general protective board.

[0025] Preferably, multiple surface mount pads 9 are provided on the back of the PCB board, and the position of the surface mount pads 9 can be adaptively adjusted according to the layout of the electronic components. For example, surface mount pads 9 are soldered around high-profile electronic components on the back of the PCB board. The surface mount pads 9 are distributed discontinuously, and the support and protection range of each surface mount pad 9 is 40-60mm in radius. Generally, large chassis only require 5-7 surface mount pads 9 to form a distributed support network. When the PCB board is assembled onto a universal protective board, the surface mount pads 9 of the PCB board abut against the plane of the protective board body 1, preventing the screwless support area in the middle of the universal protective board from sinking and compressing the electronic components. Furthermore, the surface mount pads 9 are distributed on the PCB board according to the layout of the electronic components, without affecting the universality of the protective board.

[0026] like Figures 3 to 5 As shown, the heat dissipation hole array on the left and right bent edges 3 consists of multiple heat dissipation through holes 60 arranged along the length of the bent edges 3. In practical applications, the heat dissipation direction of the chassis equipment is left and right. After the left and right sides of the general protective plate are bent, it will inevitably affect the heat dissipation of the electronic components on the back of the PCB board. If the temperature of the electronic components is too high, it will cause abnormal operation of the chassis. Therefore, in this embodiment, a row of heat dissipation through holes 60 is opened on each of the left and right bent edges 3 of the general protective plate. When the equipment fan unit is running, the airflow can enter from one side of the heat dissipation through hole, exchange heat, and then exit from the other side of the heat dissipation through hole, thus cooling the electronic components on the back of the PCB board.

[0027] like Figure 4 and Figure 5 As shown, the front and rear sides of the protective plate body 1 are respectively provided with outwardly protruding limiting plates 5. One end of the limiting plate 5 is connected to the protective plate body 1, and the other end extends outward in a direction of 30~45° with the protective plate body 1.

[0028] like Figure 8 As shown, when the universal protective plate is assembled onto the chassis, one end of the limiting plate 5 extends outward and abuts against the inner side of the chassis panel 10. The inner side of the bottom surface of the chassis panel 10 supports the limiting plate 5 to prevent the universal protective plate from shifting.

[0029] Preferably, the universal protective plate described in this embodiment is a one-piece sheet metal structure, which improves the strength of the workpiece.

[0030] This embodiment is only a preferred embodiment of the present utility model. Any simple modifications, equivalent changes or alterations made by those skilled in the art based on the above-disclosed technical content shall fall within the protection scope of the present utility model.

Claims

1. A universal protective board for a chassis PCB, characterized in that, The general protective plate includes a protective plate body (1). The edge of the protective plate body (1) is provided with a plurality of studs (2) that match the screw holes (8) of the PCB board. The protective plate body (1) is provided with bending edges (3) on the left and right sides respectively. Positioning blocks (4) are symmetrically provided at the ends of the bending edges (3) on the left and right sides, and each bending edge (3) is provided with a heat dissipation hole array (6). The protective plate body (1) is provided with outwardly protruding limiting plates (5) on the front and rear sides respectively.

2. The universal protective plate according to claim 1, characterized in that, The main body (1) of the protective plate is a rectangular flat plate; Multiple studs (2) are distributed at the four corners and along the long side of the rectangular plate.

3. The universal protective plate according to claim 2, characterized in that, The number of studs (2) is 5-8.

4. The universal protective plate according to claim 1, characterized in that, Both the left and right bends are right-angle bends perpendicular to the main body (1) of the protective plate, and their heights are equal.

5. The universal protective plate according to claim 4, characterized in that, A first positioning block is provided at the front end of the top of the left bent edge, and a second positioning block is symmetrically provided at the rear end of the top of the right bent edge.

6. The universal protective plate according to claim 5, characterized in that, When the general protective plate is assembled with the PCB board, the first positioning block and the second positioning block are respectively matched and embedded in the positioning holes (7) on the PCB board so that the stud (2) corresponds to the screw hole (8) on the PCB board, and the multiple surface mount pads (9) on the back of the PCB board abut against the plane of the protective plate body (1).

7. The universal protective plate according to claim 1, characterized in that, The heat dissipation hole array (6) consists of multiple heat dissipation through holes (60) arranged along the length direction of the bent edge (3).

8. The universal protective plate according to claim 1, characterized in that, One end of the limiting plate (5) is connected to the main body of the protective plate (1), and the other end extends outward at a direction of 30~45° with the main body of the protective plate (1).

9. The universal protective plate according to claim 8, characterized in that, When the universal protective plate and PCB board are assembled onto the chassis, one end of the limiting plate (5) extends outward and abuts against the inner side of the chassis panel (10).

10. The universal protective plate according to any one of claims 1 to 9, characterized in that, The universal protective plate is a one-piece molded structure.

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