Modular structure board card

Abstract

The utility model discloses a board card with a modularized structure, which comprises a front plug-in card PCB (printed circuit board) and a rear plug-in card PCB, plug-in card connectors are arranged on the front plug-in card PCB and the rear plug-in card PCB, a backboard connector is arranged on the front plug-in card PCB, a power supply connector is further arranged on the front plug-in card PCB, and microswitches are respectively arranged at two opposite ends of the front plug-in card PCB and the rear plug-in card PCB. The two sides of the front card insertion PCB and the two sides of the rear card insertion PCB are connected with static electricity leading-out strips through clamping structures, the clamping structures comprise cavities formed in the static electricity leading-out strips, the inner walls of the cavities are connected with clamping strips through elastic pieces, and the clamping strips are used for being movably inserted into the clamping grooves. According to the utility model, the static electricity leading-out strips are movably arranged on the two sides of the PCB through the clamping structures, so that the static electricity leading-out strips, the plug-in card connector, the backboard connector and other parts form an independent modularized structure board card, in actual use, a damaged board card can be independently replaced, the whole static electricity leading-out strips do not need to be discarded, and thus resource waste is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to drive board card technical field, concretely relates to a modular structure board card. BACKGROUND

[0002] With the rapid development of electronic technology, the application of board card in various electronic devices is more and more extensive. However, in the production, transportation, storage and use of board card, static electricity may accumulate on the board card, and when the static electricity accumulates to a certain extent, static discharge may occur, which may damage the electronic components on the board card and affect the performance and reliability of the equipment.

[0003] The traditional way to deal with static accumulation is to set a rubber insulating sleeve on the side of the PCB board of the board card to isolate the static charge in the external environment. However, the rubber material may age or lose elasticity after long-term use, resulting in a decrease in its protective performance. Therefore, in the prior art, an electrostatic discharge strip is provided on the PCB board, which provides a low-impedance static discharge path to prevent static accumulation.

[0004] However, the existing electrostatic discharge strip is usually fixedly arranged on the PCB board and is difficult to disassemble or replace. This means that when a single board of the PCB board is damaged, the electrostatic discharge strip will also be discarded, resulting in waste of resources. SUMMARY

[0005] The utility model aims at providing a modular structure board card to solve the technical problem that the electrostatic discharge strip is fixedly arranged on the PCB board in the prior art, which makes it difficult to disassemble and replace.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A modular structure board card comprises front and rear plug-in PCB boards arranged on both sides of a backboard structure, the front and rear plug-in PCB boards are respectively provided with plug-in connectors capable of being mutually docked, the front plug-in PCB board is provided with a backboard connector for connecting with an input port of the backboard structure, the front plug-in PCB board is further provided with a power connector, and panels are arranged at two ends of the front and rear plug-in PCB boards, respectively, the panels are provided with microswitches for controlling the on-off of the front and rear plug-in PCB boards.

[0008] Both sides of the front and rear plug-in card PCB boards are provided with clamping grooves, the clamping grooves are connected with electrostatic discharge strips through clamping structures, the clamping structure comprises a cavity opened in the electrostatic discharge strip, a clamping opening is opened on one side of the cavity, and a clamping strip is connected to the inner wall of the cavity through an elastic element.

[0009] As a preferred scheme of the utility model, the clamping grooves are arranged on the upper surfaces and lower surfaces of the front and rear plug-in card PCB boards, longitudinal grooves are arranged in the upper cavity wall and lower cavity wall of the cavity, the elastic element is arranged in the longitudinal groove, one end of the clamping strip is connected with the elastic element, and the other end of the clamping strip protrudes out of the longitudinal groove and extends outward.

[0010] As a preferred scheme of the utility model, the end face of the clamping strip outside the longitudinal groove is rounded to form a circular arc.

[0011] As a preferred scheme of the utility model, a conductive copper foil is arranged on the inner wall of the cavity away from the cavity opening, the conductive copper foil extends along the length direction of the electrostatic discharge strip, and the side surfaces of the front and rear plug-in card PCB boards are connected with the conductive copper foil.

[0012] As a preferred scheme of the utility model, an auxiliary positioning sleeve is arranged between the plug-in card connector and the back plate connector on the front plug-in card PCB;

[0013] An auxiliary positioning plug is arranged on one side of the plug-in card connector on the rear plug-in card PCB, the end face of the auxiliary positioning plug protrudes from the end face of the plug-in card connector, the auxiliary positioning plug is correspondingly inserted with the auxiliary positioning sleeve, and the insertion depth of the auxiliary positioning plug and the auxiliary positioning sleeve is greater than the insertion depth between the two plug-in card connectors and the plurality of back plate connectors.

[0014] As a preferred scheme of the utility model, a plurality of elastic sheets are arranged in the auxiliary positioning sleeve, the plurality of elastic sheets are circumferentially arranged on the inner wall of the auxiliary positioning sleeve, one end of the elastic sheet close to the opening of the auxiliary positioning sleeve is connected with the inner wall of the auxiliary positioning sleeve, the other end of the elastic sheet is inclined to the center of the auxiliary positioning sleeve, and rough particles for increasing friction are arranged on the surfaces of the elastic sheet and the auxiliary positioning plug.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses a card joint structure is with static electricity export strip activity installation on the both sides of PCB board to with card connector, backplane connector and other components common constitute independent modular structure board card, when actual use, can replace the damaged board card alone, and do not need to discard the whole static electricity export strip, thereby greatly reduce the resource waste. And, through the modular design can realize independent dismounting and replacement function, can according to actual demand flexible combination different module, constructs the board card suitable for specific application scene, not only improves the flexibility of board card, also makes each module can be repeatedly used between different board cards, further improves the resource utilization. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description. Obviously, the drawing in the following description is only exemplary, and for those skilled in the art, other implementation drawings can be obtained according to the provided drawing without creating labor.

[0018] Figure 1 It is the overall structure schematic diagram of the utility model, specifically, it is embodiment one;

[0019] Figure 2 It is the sectional view of front card PCB of the utility model;

[0020] Figure 3 It is the utility model Figure 2 The enlarged view of A in the utility model;

[0021] Figure 4 It is the overall structure schematic diagram of the utility model, specifically, it is embodiment two;

[0022] Figure 5 It is the front cutaway view of the utility model;

[0023] Figure 6 It is the utility model Figure 5 The enlarged view of B in the utility model.

[0024] The reference numerals in the drawing represent as follows:

[0025] 1, backplate structure;2, front card PCB;3, rear card PCB;4, card connector;5, backplane connector;6, power connector;7, panel;8, micro switch;9, card joint groove;10, static electricity export strip;11, cavity;12, elastic piece;13, card strip;14, longitudinal depth groove;15, conductive copper foil;16, auxiliary positioning sleeve;17, auxiliary positioning column;18, elastic sheet. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] As shown in Figures 1 to 6 The utility model provides a kind of modular structure board card, including the front card PCB 2 and rear card PCB 3 of being set in the both sides of backplane structure 1, front card PCB 2 and rear card PCB 3 are respectively provided with the card connector 4 of being able to mutually butt joint, front card PCB 2 is provided with backplane connector 5 for being connected with the input port of backplane structure 1, front card PCB 2 is also provided with power connector 6, panel 7 is respectively arranged in the two ends of front card PCB 2 and rear card PCB 3, microswitch 8 for controlling the on-off of front card PCB 2 and rear card PCB 3 is provided on panel 7.

[0028] In the device, rear card PCB 3 is mainly located in the upper end of board card layout, wherein, the card connector 4 on front card PCB 2 is female connector, the card connector 4 on rear card PCB 3 is male connector, considering the need to avoid backplane structure 1 in overall structure layout, rear card PCB 3 can be special-shaped structure (protrude a proper distance at the position of connector, ensure that front card and rear card can be plugged)

[0029] It is set to the mode that rear card PCB 3 and front card PCB 2 are mutually clamped, which can provide multiple interface resources, including digital input and output interface, analog input and output interface, communication interface, etc., these interfaces can be connected with external equipment, realize the expansion of system and the enhancement of function, and support multi-slot system, the function and performance of system can be expanded by inserting multiple rear cards.

[0030] The modular design of the structure board card as a whole can enable different functional modules to be independently developed and produced, and then connected and integrated through standard interfaces, which makes the development and maintenance of system more convenient and fast, and also improves the reliability and scalability of system.

[0031] Among them, backplane connector 5 is used for plugging communication with backplane structure 1, can realize the transmission of high-speed data of signal and stable communication function, realizes bus communication between board cards through backplane structure 1, so that different functional board cards can work cooperatively and share system resources, so as to realize the overall function of system.

[0032] In addition, multiple external devices can be connected, and data can be quickly transmitted between devices through a local bus, effectively solving the bottleneck problem of data transmission.

[0033] In addition, the backplane connector 5 adopts a standardized design, follows international standards and industry specifications, improves the maintainability and manageability of the system, and reduces the maintenance cost and difficulty. At the same time, it also makes the system upgrade and expansion more convenient and fast, and users can choose different plug-in cards for upgrade and expansion according to their needs, improving the flexibility and scalability of the system.

[0034] The power connector 6 can transmit the power of the external power system to the board card, meet the power demand of each electronic component and circuit on the board card;

[0035] The power connector 6 is used with the power management circuit on the board card to realize the management and control of the power supply. It can monitor the input state of the power supply, such as voltage, current, power, etc., and feed back these information to the power management circuit, and adjust the output of the power supply according to these information to meet the different working state demand of the board card. And through reasonable design and layout, it can reduce the contact resistance and inductance, reduce the generation and propagation of power supply noise, and improve the signal quality of the board card.

[0036] Further, the connection of the power connector 6 and the power socket not only provides power connection, but also plays a mechanical connection role, firmly fixing the board card on the case or backplane structure 1, improving the firmness of the connection of the board card in the use process.

[0037] In addition, the setting of the micro switch 8 can directly pull out the faulty board card and replace it in the state of not stopping the system when the board card fails, greatly shortening the downtime of the system due to hardware failure, and minimizing the impact on business. Without closing the entire system, the board card can be maintained, replaced or upgraded, ensuring continuous operation of the system and timely updating of device functions to adapt to changing business needs.

[0038] It can also be inserted or pulled out according to different application scenarios and business needs during system operation, realizing dynamic allocation and adjustment of hardware resources. When the system needs to add new functions or improve performance, new board cards can be added through hot plug, without the need to restart the system or perform complex hardware configuration, making the system expansion more convenient and efficient. Avoiding the long downtime of the system caused by traditional maintenance methods (turning off and replacing the board card), thereby reducing the loss caused by the downtime of the equipment and the indirect cost brought by it. At the same time, maintenance personnel do not need to perform tedious shutdown and startup operation processes, but only need to perform plug-in and plug-out operations of the board card in the running state of the system, reducing the complexity and difficulty of maintenance operations and improving the maintenance efficiency.

[0039] The front and rear plug-in PCB boards 2 and 3 are provided with clamping grooves 9 on both sides, and the clamping grooves 9 are connected with electrostatic discharge strips 10 through clamping structures, the clamping structures include cavities 11 provided in the electrostatic discharge strips 10, the cavities 11 are provided with clamping openings on one side, and the inner walls of the cavities are connected with clamping strips 13 through elastic members 12, and the clamping strips 13 are used to be inserted into the clamping grooves 9.

[0040] The clamping grooves 9 are provided on the upper and lower surfaces of the front and rear plug-in PCB boards 2 and 3, the upper and lower cavity walls of the cavities 11 are provided with longitudinal grooves 14, the elastic members 12 are arranged in the longitudinal grooves 14, one end of the clamping strips 13 is connected with the elastic members 12, and the other end of the clamping strips 13 protrudes out of the longitudinal grooves 14 and extends outward, and the clamping strips 13 are embedded or separated from the clamping grooves 9 through the extension or compression of the elastic members 12.

[0041] The end face of the clamping strips 13 located outside the longitudinal grooves 14 is rounded to form a circular arc.

[0042] The clamping strips 13 arranged in a telescopic manner can be pressed when the PCB boards are inserted into the longitudinal grooves 14, and the clamping strips 13 extend out to be connected with the clamping grooves 9. Further, when the electrostatic discharge strips 10 need to be disassembled, the PCB boards are pulled out, so that the clamping strips 13 are compressed and moved upward, and the clamping strips 13 are separated from the clamping grooves 9, so that the electrostatic discharge strips 10 can be disassembled.

[0043] Further, the electroconductive copper foils 15 are arranged on the inner walls of the cavities 11 away from the openings of the cavities 11, the electroconductive copper foils 15 extend along the length direction of the electrostatic discharge strips 10, and the sides of the front and rear plug-in PCB boards 2 and 3 are connected with the electroconductive copper foils 15. The electroconductive copper foils 15 arranged with a length corresponding to the length of the electrostatic discharge strips 10 can greatly expand the contact area of the PCB and the copper foil, so that the electrostatic can be more effectively guided to the electrostatic discharge strips 10. Specifically, the electrostatic discharge strips 10 can be in contact with the board card cabinet shell to guide the electrostatic to the ground wire or the discharge system.

[0044] As shown in Figure 4 and Figure 5 , in actual use, the size of the board body can be selected according to the functional requirements and the number of channels, and the number of ports can be increased or decreased to form different standard board cards. For example, when the functional requirements are simple and the number of acquisition channels is small, a 3U standard structure board card with smaller size and fewer ports can be arranged.

[0045] When the function is complex and the number of channels is large, a 6U structure board card with larger size and more ports can be arranged.

[0046] Since the rear board card needs to avoid the position of the backboard structure 1 when arranged, the rear board card is usually connected with the front board card only through the plug-in connector 4 (as shown in Figure 1As shown, the front and rear plug-in PCBs of the smaller 3U board card are also usually provided with auxiliary positioning sleeves, but the two auxiliary positioning sleeves are usually used to connect with the latches on the backplane structure. In the device, as an embodiment, one of the auxiliary positioning sleeves on the rear plug-in PCB can be set as an auxiliary positioning column, which is used to connect with the front plug-in PCB, so that the connection is not firm enough in actual use. Therefore, in the device, an auxiliary positioning column 17 is arranged on the rear plug-in PCB on the side of the plug-in connector 4, the end face of the auxiliary positioning column 17 protrudes from the end face of the plug-in connector 4, the auxiliary positioning column 17 is inserted into the auxiliary positioning sleeve 16 in correspondence, and the insertion depth of the auxiliary positioning column 17 and the auxiliary positioning sleeve 16 is greater than the insertion depth between the two plug-in connectors 4 and the plurality of backplane connectors 5.

[0047] This design is more suitable for larger 6U structure board cards in actual use, and smaller 3U structure board cards are connected and fixed through the backplane structure 1.

[0048] Further, a plurality of elastic pieces 18 are arranged in the auxiliary positioning sleeve 16, the plurality of elastic pieces 18 are circumferentially arranged on the inner wall of the auxiliary positioning sleeve 16, one end of the elastic piece 18 close to the opening of the auxiliary positioning sleeve 16 is connected with the inner wall of the auxiliary positioning sleeve 16, and the other end is inclined to the center of the auxiliary positioning sleeve 16, and rough particles for increasing friction are arranged on the surfaces of the elastic piece 18 and the auxiliary positioning column 17.

[0049] When the auxiliary positioning column 17 is inserted into the auxiliary positioning sleeve 16, the clamping and extrusion of the plurality of elastic pieces 18 and the mutual friction between the auxiliary positioning column 17 and the elastic piece 18 can improve the connection firmness between them, thereby enhancing the connection firmness effect.

[0050] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application, and the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements shall also be considered to fall within the protection scope of the present application.

Claims

1. A modular structure board card, characterized by, The application relates to a backplane structure (1) comprising front and rear plug-in card PCB plates (2 and 3) arranged on two sides of the backplane structure (1), wherein the front and rear plug-in card PCB plates (2 and 3) are respectively provided with plug-in card connectors (4) capable of being mutually docked, the front plug-in card PCB plate (2) is provided with a backplane connector (5) for connecting with an input port of the backplane structure (1), the front plug-in card PCB plate (2) is further provided with a power supply connector (6), and panels (7) are arranged at two ends of the front and rear plug-in card PCB plates (2 and 3) away from each other, wherein the panels (7) are provided with micro switches (8) for controlling on-off power supply of the front and rear plug-in card PCB plates (2 and 3). The front and rear plug-in card PCB plates (2 and 3) are respectively provided with clamping grooves (9) arranged on upper and lower surfaces of the front and rear plug-in card PCB plates (2 and 3), the clamping grooves (9) are connected with electrostatic discharge strips (10) through clamping structures, the clamping structures comprise cavities (11) arranged in the electrostatic discharge strips (10), the cavities (11) are provided with clamping openings on one side, and the inner walls of the cavities (11) are connected with clamping strips (13) through elastic members (12), and the clamping strips (13) are used for being movably inserted into the clamping grooves (9).

2. The modular chassis board card of claim 1, wherein, The clamping grooves (9) are arranged on the upper and lower surfaces of the front and rear plug-in card PCB plates (2 and 3), the upper and lower cavity walls of the cavities (11) are provided with longitudinal grooves (14), the elastic members (12) are arranged in the longitudinal grooves (14), one end of the clamping strips (13) is connected with the elastic members (12), the other end of the clamping strips (13) protrudes out of the longitudinal grooves (14) and extends outward, and the clamping strips (13) are embedded or separated from the clamping grooves (9) through stretching or compression of the elastic members (12).

3. The modular chassis board card of claim 2, wherein, The end face of the clamping strips (13) located outside the longitudinal grooves (14) is rounded to form a circular arc.

4. The modular chassis board card of claim 3, wherein, Conductive copper foils (15) are arranged on the inner walls of the cavities (11) away from the openings of the cavities (11), the conductive copper foils (15) extend along the length direction of the electrostatic discharge strips (10), and the side surfaces of the front and rear plug-in card PCB plates (2 and 3) are connected with the conductive copper foils (15).

5. The modular chassis board card of claim 1, wherein, Auxiliary positioning sleeves (16) are arranged between the plug-in card connectors (4) and the backplane connector (5) on the front plug-in card PCB plate (2), and the end faces of the auxiliary positioning sleeves (16) protrude out of the plug-in card connectors (4) and the backplane connector (5). The auxiliary positioning sleeve (16) is arranged on the rear card PCB and is located on one side of the card connector (4). The end surface of the auxiliary positioning sleeve (16) protrudes from the end surface of the card connector (4). The auxiliary positioning sleeve (16) is correspondingly inserted into the auxiliary positioning sleeve (16). The insertion depth of the auxiliary positioning sleeve (16) and the auxiliary positioning sleeve (16) is greater than the insertion depth between the two card connectors (4) and the plurality of backboard connectors (5).

6. A modular chassis board card according to claim 5, wherein, A plurality of elastic sheets (18) are arranged in the auxiliary positioning sleeve (16). The plurality of elastic sheets (18) are circumferentially arranged on the inner wall of the auxiliary positioning sleeve (16). One end of the elastic sheet (18) close to the opening of the auxiliary positioning sleeve (16) is connected to the inner wall of the auxiliary positioning sleeve (16). The other end is inclined to the center of the auxiliary positioning sleeve (16). Rough particles are arranged on the surfaces of the elastic sheet (18) and the auxiliary positioning sleeve (17) to increase the friction.

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