A fixing structure of a circuit board

Abstract

The embodiment of the present application provides a fixing structure of a circuit board, and relates to the technical field of computers. The fixing structure comprises a plate body, a connecting assembly and a sliding piece. The plate body is used for connecting the circuit board; the connecting assembly comprises a connecting piece and a first fixing piece arranged in cooperation with the connecting piece; the connecting piece is fixed to any one of the plate body and a case; the first fixing piece is fixed to the other one; the first fixing piece is configured to be connected or disconnected with the first fixing piece when the connecting piece is in a preset position; and the sliding piece is slidingly arranged on the plate body and is configured to be connected or disconnected with the contact plate when the sliding piece is in a locking or unlocking position. The fixing structure of the circuit board is convenient for mounting and dismounting the circuit board.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of computer technology, and particularly relate to a fixing structure of a circuit board. BACKGROUND

[0002] A PCIE card, full name PCI Express card, is an expansion card of a computer using a PCI Express interface. Such an expansion card can be connected to the mainboard of the computer using the PCI Express interface to increase or expand the functions of the computer. In some cases, it is necessary to plug the circuit board on the expansion card.

[0003] In related technologies, when the circuit board needs to be matched with the expansion card, a support is usually used. First, the expansion card is connected to the case of an electronic processing device such as a computer or a server, and then the circuit board is connected to the support. The support is fixed to the case by bolts, so that the circuit board and the expansion card are fixed to the plugging state.

[0004] However, the use of bolts to fix the support and the case is not convenient for the installation and disassembly of the support. SUMMARY

[0005] Therefore, embodiments of the present application provide a fixing structure of a circuit board to solve the technical problem that it is inconvenient to install and disassemble the support by using bolts to fix the support and the case.

[0006] To achieve the above object, embodiments of the present application provide a fixing structure of a circuit board, which adopts the following technical solution:

[0007] The fixing structure of the circuit board provided by the embodiments of the present application is used to connect the expansion card and the circuit board. The expansion card is provided with a contact plate. The fixing structure comprises:

[0008] a board body for connecting the circuit board;

[0009] a connecting assembly comprising a connecting piece and a first fixing piece matched with the connecting piece. The connecting piece is fixed to any one of the board body and the case, and the first fixing piece is fixed to the other one. The first fixing piece is configured to be connected or disconnected with the first fixing piece when the connecting piece is in a preset position.

[0010] a sliding piece slidingly arranged on the board body. The sliding piece is configured to be connected or disconnected with the contact plate when the sliding piece is in a locked or unlocked position.

[0011] In a possible implementation, the connecting piece comprises a fixed part and an elastic part connected to the fixed part, the fixed part is connected to the plate body, and the elastic part is provided with a protruding piece configured to be buckled with the first fixing piece under the elastic action of the elastic part when the connecting piece is in a preset position to limit the connecting piece.

[0012] In a possible implementation, the connecting piece further comprises a first stopper fixed on the fixed part, and the elastic part is configured to cancel the buckling with the first fixing piece when abutting against the first stopper.

[0013] In a possible implementation, one end of the sliding piece is provided with a matching groove for plugging or unplugging with the barb on the contact plate.

[0014] In a possible implementation, the fixing structure of the circuit board further comprises an anti-disengagement assembly for preventing the sliding piece and the expansion card from being unplugged.

[0015] In a possible implementation, the anti-disengagement assembly comprises:

[0016] a second fixing piece fixed on the sliding piece;

[0017] a third fixing piece fixed on the plate body;

[0018] an elastic piece connecting the second fixing piece and the third fixing piece, and the elastic piece is configured to be in a locked or unlocked position when being in a natural or compressed state.

[0019] In a possible implementation, the bottom of the sliding piece is provided with a guide surface, the guide surface is arranged at one end of the sliding piece provided with the matching groove, and the guide surface is configured to contact the contact plate to drive the sliding piece to slide to reach the locked position during the movement of the plate body towards the expansion card.

[0020] In a possible implementation, the plate body is fixed with a second stopper, and the second stopper is configured to be in an unlocked position when the sliding piece abuts against the second stopper.

[0021] In a possible implementation, any one of the sliding piece and the plate body is provided with a limiting hole arranged along the sliding direction of the sliding piece, and the other is provided with a limiting piece arranged in the limiting hole.

[0022] The limiting hole is provided with a locking position and an unlocking position, and the limiting piece is configured to be in a locking position when sliding to the locking position and in an unlocking position when sliding to the unlocking position.

[0023] In a possible implementation, the plate body is provided with a support frame configured to abut against the circuit board when the plate body and the circuit board are connected.

[0024] The fixing structure of the circuit board provided by the embodiment of the application first fixes the circuit board on the plate body, and then when the plate body and the expansion card need to be connected and fixed, the connecting piece is installed at the preset position, the first fixing piece and the connecting piece are connected or disconnected with each other, so that the plate body and the case are fixed or separated, and the connection or disconnection between the plate body and the contact plate can be realized by sliding the sliding piece relative to the plate body, so that the fixing or separation between the plate body and the contact plate is realized, without the aid of other tools or the need to screw the bolt, the convenience of the plate body installation and disassembly is improved, so that the convenience of the circuit board installation and disassembly is improved; and the connection mode of the connecting assembly and the case enables the circuit board to be fixed on the side close to the case, and at the same time, the connection mode of the sliding piece and the contact plate enables the circuit board to be fixed with the contact plate, the fixing strength between the circuit board and the expansion card is improved by increasing the fixing points, and the disconnection between part of the circuit board and the expansion card is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings incorporated into the specification and constituting a part of the specification show the embodiments consistent with the application and, together with the specification, serve to explain the principles of the embodiments of the application. Obviously, the drawings described below are some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0026] Figure 1 The structural schematic diagram of the fixing structure of the circuit board provided by the embodiment of the application is shown in the figure.

[0027] Figure 2 The structural schematic diagram of the fixing structure of the circuit board provided by the embodiment of the application is shown in the figure. Figure 1 The structural schematic diagram of the fixing structure of the circuit board provided by the embodiment of the application is shown in the figure.

[0028] Figure 3 The structural schematic diagram of the fixing structure of the circuit board provided by the embodiment of the application is shown in the figure. Figure 1 The structural schematic diagram of the fixing structure of the circuit board provided by the embodiment of the application is shown in the figure.

[0029] Figure 4 The structural schematic diagram of the fixing structure of the circuit board provided by the embodiment of the application is shown in the figure. Figure 3 The structural schematic diagram of the fixing structure of the circuit board provided by the embodiment of the application is shown in the figure.

[0030] Figure 5 The structural schematic diagram of the fixing structure of the circuit board provided by the embodiment of the application is shown in the figure. Figure 3 The structural schematic diagram of the fixing structure of the circuit board provided by the embodiment of the application is shown in the figure.

[0031] Figure 6 for Figure 5 a structural schematic diagram of part A in the middle;

[0032] Figure 7 for Figure 5 a structural schematic diagram of part B in the middle.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 10 - expansion card; 11 - contact plate; 12 - barb;

[0035] 20 - circuit board;

[0036] 30 - case;

[0037] 100 - plate body; 110 - second stop; 120 - limiting piece; 130 - mounting seat; 140 - support frame;

[0038] 200 - connecting assembly; 210 - connecting piece; 211 - fixed part; 212 - elastic part; 2121 - protruding piece; 213 - first stop; 220 - first fixed part;

[0039] 300 - sliding piece; 310 - matching groove; 320 - guide surface; 330 - limiting hole; 340 - protective cover; 341 - operation port;

[0040] 400 - anti-dropping assembly; 410 - second fixed part; 420 - third fixed part; 430 - elastic piece.

[0041] Through the above drawings, the specific embodiments have been shown, and more detailed description will be given hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the embodiments of the present application by any means, but to illustrate the concept of the embodiments of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0042] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to indicate the same elements throughout the several views. The following detailed description is not intended to represent all embodiments consistent with the present embodiments. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present embodiments as detailed in the appended claims.

[0043] Secondly, it needs to be explained that in the description of the embodiments of the present application, the terms indicating the direction or positional relationship of "inner", "outer" and the like are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0044] In addition, it also needs to be explained that in the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two components. For those skilled in the art, the specific meaning of the above-mentioned terms in the embodiments of the present application can be understood according to the specific circumstances.

[0045] As the background art, when the circuit board needs to be matched with the expansion card, a support is usually used, first, the expansion card is connected to the computer case, and then the circuit board is connected to the support through bolts, the support is moved towards the expansion card, so that the contact plate on the expansion card is inserted and matched with the slot of the circuit board, so that the PCIE card is electrically connected with the circuit board. In order to prevent the contact plate from being separated from the slot, the support needs to be connected to the case, so that the contact plate is fixed to the state of being inserted into the slot.

[0046] However, when the support is connected to the case, the support and the case are usually fixed by bolts, when the circuit board needs to be installed and disassembled, tools need to be used to screw the bolts, when the bolts are internal hexagonal bolts, screwdrivers need to be used to screw the bolts. The space inside the case is small, which makes it inconvenient to install and disassemble the circuit board.

[0047] In view of the above technical problems, the embodiment of the present application provides a fixing structure of a circuit board. First, the circuit board is fixed on a mounting seat on the plate body through a bolt. When the circuit board and the expansion card need to be connected, the plate body moves along the guide groove on the contact plate towards the expansion card. Under the elastic action of the elastic member, the protruding member and the first fixing member are buckled, the installation and the limiting of the connecting member are completed, the fixing of the plate body and the case is realized, the guiding surface is in contact with the contact plate, the sliding member reaches the locking position along the guiding surface, the fixing between the plate body and the contact plate is realized, and the stable connection between the circuit board and the expansion card is realized. When the circuit board and the expansion card need to be separated, the elastic part is deformed by pulling the elastic member towards the first stop member, so that the buckling state between the protruding member and the first fixing member is cancelled, the fixing between the plate body and the case is unlocked, the fitting groove is separated from the barb on the contact plate by pulling the sliding member towards the second stop member, the fixing between the plate body and the contact plate is unlocked, and the convenience of disassembly of the plate body is improved. Without the aid of other tools or the screwing of the bolt, the installation and disassembly between the circuit board and the contact plate are facilitated.

[0048] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the present application will be described below with reference to the drawings.

[0049] Referring to Figures 1 to 7 The fixing structure of the circuit board provided by the embodiment of the present application is used to connect the expansion card 10 and the circuit board 20. The expansion card 10 is provided with a contact plate 11. The fixing mechanism includes a plate body 100, a connecting assembly 200 and a sliding member 300.

[0050] The plate body 100 is used to connect the circuit board 20. The connecting assembly 200 includes a connecting member 210 and a first fixing member 220 arranged in cooperation with the connecting member 210. The connecting member 210 is fixed to any one of the plate body 100 and the case 30. The first fixing member 220 is fixed to the other one. The first fixing member 220 is configured to be connected or disconnected with the first fixing member 220 when the connecting member 210 is in a preset position. The sliding member 300 is slidingly arranged on the plate body 100. The sliding member 300 is configured to be connected or disconnected with the contact plate 11 when the sliding member 300 is in a locking or unlocking position.

[0051] Referring to Figure 1 and Figure 2 In the embodiment, the mounting seat 130 is arranged on the plate body 100. The mounting seat 130 is provided with a threaded hole. The circuit board 20 can be detachably connected to the mounting seat 130 through a bolt, so that the circuit board 20 and the plate body 100 are convenient to install and disassemble.

[0052] By adopting the technical scheme, the circuit board 20 is first fixed on the plate body 100, then when the plate body 100 needs to be connected and fixed with the expansion card 10, the connecting piece 210 is installed at the preset position, the first fixing piece 220 and the connecting piece 210 are connected or disconnected with each other, so that the plate body 100 and the case 30 are fixed or separated, and the connection or disconnection with the contact plate 11 can be realized by sliding the sliding piece 300 relative to the plate body 100, so that the fixing or separation between the plate body 100 and the contact plate 11 is realized, without the aid of other tools or the need to screw the bolt, the convenience of mounting and dismounting the plate body 100 is improved, so that the convenience of mounting and dismounting the circuit board 20 is improved; and the connection assembly 200 enables the plate body 100 and the case 30 to be connected in a manner that enables the circuit board 20 to be fixed on the side close to the case 30, and at the same time, the sliding piece 300 is connected with the contact plate 11 in a manner that enables the circuit board 20 to be fixed with the contact plate 11, so that the fixing strength between the circuit board 20 and the expansion card 10 is improved by increasing the fixing points, and the disconnection between part of the circuit board 20 and the expansion card 10 is prevented.

[0053] Referring to Figure 6 As shown in the figure, the connecting piece 210 includes a fixed part 211 and an elastic part 212 connected to the fixed part 211, the fixed part 211 is connected to the plate body 100, and the elastic part 212 is provided with a protruding piece 2121, which is configured to be buckled with the first fixing piece 220 under the elastic action of the elastic part 212 when the connecting piece 210 is at the preset position, so as to limit the connecting piece 210.

[0054] Among them, the fixed part 211 is the main supporting part of the connecting piece 210, further, the fixed part 211 is installed at one end of the plate body 100, in some examples, the fixed part 211 is a fixed plate; the elastic part 212 is connected with the fixed part 211, in some examples, the elastic part 212 includes an elastic plate and a movable plate, the elastic plate is connected with the end of the fixed plate and the movable plate respectively, so that a cavity is formed between them, and due to the elastic characteristics of the elastic plate, there is always a gap between the fixed plate and the movable plate under no external force, wherein the protruding piece 2121 is arranged on the side of the movable plate away from the fixed plate.

[0055] When the board body 100 is installed in a preset process, the convex piece 2121 and the first fixing piece 220 are buckled under the elastic action of the elastic piece 430, the installation and the limiting of the connecting piece 210 are completed; when it is needed to disassemble the connecting piece 210, the convex piece 2121 is separated from the first fixing piece 220 by applying appropriate external force, with the separation of the convex piece 2121 from the first fixing piece 220, the connection between the connecting piece 210 and the board body 100 is also released, and the connecting piece 210 is realized from the board body 100. The connection mode is simple in structure, and the installation and disassembly process is convenient, the limiting function is realized by the buckling of the convex piece 2121 and the first fixing piece 220, and the connection is stable and reliable.

[0056] It should be noted that the above-mentioned connection piece 210 is fixed to any one of the board body 100 and the case 30, and the first fixing piece 220 is fixed to the other.

[0057] In one embodiment, the connecting piece 210 is fixed to the board body 100, the first fixing piece 220 is fixed to the case 30, and the contact surface of the two when the convex piece 2121 is buckled to the first fixing piece 220 is the upper end surface of the convex piece 2121; in another embodiment, the connecting piece 210 is fixed to the case 30, the first fixing piece 220 is fixed to the board body 100, and the contact surface of the two when the convex piece 2121 is buckled to the first fixing piece 220 is the lower end surface of the convex piece 2121, that is, when the board body 100 is located in the installation position, the connecting assembly 200 can ensure that the end of the board body 100 close to the case 30 is fixed, and this is not limited.

[0058] Further, referring to Figure 6 As shown in the figure, the connecting piece 210 further comprises a first stop piece 213, the first stop piece 213 is fixed on the fixed part 211, and the elastic part 212 is configured to cancel the buckling of the convex piece 2121 and the first fixing piece 220 when abutting against the first stop piece 213.

[0059] In some examples, the first stop piece 213 is a stop plate, the first stop piece 213 is arranged in the cavity formed by the fixed plate, the elastic plate and the interactive plate, and the first stop piece 213 is fixedly connected to the fixed plate and has a spacing between the elastic plate.

[0060] When it is needed to cancel the limiting function of the connecting piece 210, an external force can be applied, such as pulling the elastic piece 430 towards the direction of the first stop piece 213, so that the elastic part 212 is deformed. When the elastic part 212 is deformed due to the action of the external force and abuts against the first stop piece 213, the deformation of the elastic part 212 reaches its maximum range, at this time the buckling state between the convex piece 2121 and the first fixing piece 220 is cancelled, and the fixing of the end of the board body 100 is cancelled, so that the board body 100 is disassembled.

[0061] Further, referring toFigure 1 and Figure 7 As shown in FIG. 3, one end of the sliding member 300 is provided with a matching groove 310, which is used for plugging or unplugging with the barb 12 on the contact plate 11.

[0062] The sliding member 300 is an important component for connecting and fixing the expansion card 10, and one end of the sliding member 300 is provided with the matching groove 310. The main function of the matching groove 310 is to provide an interface for plugging or unplugging with the barb 12 on the contact plate 11, and the matching groove 310 matches the barb 12 on the contact plate 11.

[0063] When the sliding member 300 is in the locked position, the matching groove 310 is plugged with the barb 12 on the contact plate 11, thereby realizing stable connection between the expansion card 10 and the circuit board 20. When it is necessary to unlock the expansion card 10, the sliding member 300 is pushed to move to the unlocked position, and the matching groove 310 is unplugged with the barb 12, allowing the expansion card 10 to be taken out of the slot.

[0064] Through the movement of the sliding member 300, the locking and unlocking of the expansion card 10 can be easily realized, and at the same time, the plugging mode of the matching groove 310 and the barb 12 provides stable connection, ensuring the fixation between the expansion card 10 and the circuit board 20, and avoiding disconnection after installation.

[0065] In addition, the connection assembly 200 makes the board body 100 have one fixed point, and the plugging of the sliding member 300 and the contact plate 11 makes the board body 100 have another fixed point. In some examples, the sliding member 300 is arranged near one end of the board body 100 away from the connection assembly 200, and the two fixed points are arranged near the ends of the board body 100, respectively, which ensures the installation stability of the board body 100 and further improves the stable connection between the circuit board 20 and the expansion card 10.

[0066] When it is necessary to unlock the board body 100, the operator can simultaneously push the elastic part 212 and the sliding member 300 to realize the unlocking of the board body 100, without the need for multiple people to work together, which is convenient to operate and has high work efficiency.

[0067] In some embodiments, the fixing structure of the circuit board 20 further includes an anti-disconnection assembly 400 for preventing the sliding member 300 and the expansion card 10 from unplugging, further enhancing the stability and safety of the connection between the sliding member 300 and the expansion card 10.

[0068] Further, referring to Figure 1 、 Figure 2 and Figure 3As shown, the anti-disengagement assembly 400 includes a second fixing member 410, a third fixing member 420, and an elastic member 430. The second fixing member 410 is fixed on the sliding member 300, and the third fixing member 420 is fixed on the board body 100. The elastic member 430 connects the second fixing member 410 and the third fixing member 420, and is configured to, when in a natural or compressed state, the sliding member 300 is in a locked or unlocked position.

[0069] For example, the elastic member 430 can be a spring, a rubber block, an elastic sheet, etc., which provides the necessary elastic force and restoring force for the second fixing member 410 and the third fixing member 420.

[0070] When the elastic member 430 is not subjected to external force, its length or shape remains unchanged, at which time the sliding member 300 is in a locked position. When external force is applied to move the sliding member 300, the elastic member 430 is compressed or deformed to provide resistance to maintain the locked or unlocked position. Through the elasticity and restoring force of the elastic member 430, the stability of the sliding member 300 in the locked and unlocked positions is ensured, and the operator only needs to apply appropriate external force to easily achieve the unlocking operation.

[0071] As shown in Figure 4 , Figure 5 and Figure 7 , a guide groove is usually provided at the top end of the contact plate 11, and a guide member is provided on the board body 100. During installation of the board body 100, the guide member slides along the guide groove to approach the expansion card 10. In some embodiments, the bottom of the sliding member 300 is provided with a guide surface 320, which is located at one end of the sliding member 300 that is provided with a matching groove 310. The guide surface 320 is configured to, during movement of the board body 100 towards the expansion card 10, contact the contact plate 11 to drive the sliding member 300 to slide, so that the sliding member 300 reaches the locked position.

[0072] When the board body 100 moves towards the expansion card 10, the guide surface 320 will contact the contact plate 11, and the guide surface 320 will provide a clear guide direction to ensure that the sliding member 300 can slide along the predetermined path. Through the design of the guide surface 320, it can be ensured that the sliding member 300 can accurately reach the locked position during sliding. Once the sliding member 300 reaches the locked position, the position of the sliding member 300 will be fixed, preventing accidental movement or disengagement. The provision of the guide surface 320 makes the sliding process of the sliding member 300 smoother and easier to control.

[0073] In some examples, refer to Figure 1 and Figure 2As shown, the sliding member 300 is provided with a protective cover 340, and the second fixing member 410, the third fixing member 420 and the elastic member 430 are located in the protective cover 340. The protective cover 340 is arranged to protect the second fixing member 410, the third fixing member 420 and the elastic member 430, improve the stability of the anti-disengagement assembly 400, and has a neat and beautiful effect.

[0074] In other examples, the protective cover 340 is provided with at least two operation openings 341, and the second fixing member 410 and the third fixing member 420 correspond to the operation openings 341 respectively. When the operator needs to operate inside the protective cover 340, the operator can directly operate through the operation openings 341 without removing the entire protective cover 340 or disassembling other components, which not only improves the operation convenience, but also protects the internal components from external interference and damage.

[0075] In addition, with reference to Figure 1 As shown, the plate body 100 is fixed with a second stop member 110, and the second stop member 110 is configured such that when the sliding member 300 abuts against the second stop member 110, the sliding member 300 is in the unlocked position. The second stop member 110 is arranged at one end of the plate body 100 away from the connecting assembly 200.

[0076] When it is necessary to unlock the sliding member 300, the operator can manually push or pull the sliding member 300 to slide on the plate body 100, and when the sliding member 300 abuts against the second stop member 110, the sliding member 300 is in the unlocked position. At this time, the connection between the sliding member 300 and the contact plate 11 is cancelled, and the plate body 100 can be removed. The arrangement of the second stop member 110 prevents the sliding member 300 from sliding excessively or moving unexpectedly during the unlocking process.

[0077] In some examples, any one of the sliding member 300 and the plate body 100 is provided with a limiting hole 330 arranged along the sliding direction of the sliding member 300, and the other is provided with a limiting member 120 arranged in the limiting hole 330; the limiting hole 330 is provided with a locking position and an unlocking position, and the limiting member 120 is configured such that when it slides to the locking position, the sliding member 300 is in the locked position, and when it slides to the unlocking position, the sliding member 300 is in the unlocked position.

[0078] The limiting hole 330 is arranged along the sliding direction of the sliding member 300 to provide a clear sliding path for the limiting member 120, ensuring the stability and directionality of the sliding member 300 during movement. The limiting hole 330 is provided with a locking position and an unlocking position, and when the limiting member 120 slides to the locking position, a stable connection is formed between the sliding member 300 and the plate body 100, i.e. the sliding member 300 is in the locked position; when the limiting member 120 slides to the unlocking position, the connection between the sliding member 300 and the plate body 100 is released, i.e. the sliding member 300 is in the unlocked position.

[0079] When it is necessary to lock the slider 300, the slider 300 is in the locked position under the action of the elastic member 430, and the limiting member 120 is in the locked position at this time. When it is necessary to unlock the slider 300, the operator can manually push or pull the slider 300 to slide in the opposite direction. As the slider 300 moves, the limiting member 120 and the limiting hole 330 also slide relative to each other. When the limiting member 120 slides to the unlock position, the limiting member 120 is in the unlock position, and the plate 100 can be removed or subsequent operations can be performed at this time.

[0080] Additionally, refer to Figure 1 and Figure 2 As shown, a support frame 140 is provided on the board body 100. The support frame 140 is configured to abut against the circuit board 20 when the board body 100 and the circuit board 20 are connected.

[0081] The support frame 140 provides a stable support platform for the circuit board 20, ensuring that the circuit board 20 can remain flat and stable when connected to the board body 100. At the same time, when the circuit board 20 is connected to the board body 100, the support frame 140 can bear some stress, reducing the risk of deformation and damage to the circuit board 20 due to external forces or vibrations.

[0082] This application provides a fixing structure for a circuit board 20. First, the circuit board 20 is fixed to the mounting base 130 on the board body 100 using bolts. When it is necessary to connect the circuit board 20 and the expansion card 10, the board body 100 moves towards the expansion card 10 along the guide groove on the contact plate 11. Under the elastic action of the elastic member 430, the protrusion 2121 and the first fixing member 220 engage, completing the installation and limiting of the connector 210, thus fixing the board body 100 and the chassis 30. Simultaneously, the guide surface 320 contacts the contact plate 11, causing the sliding member 300 to reach the locking position along the guide surface 320, thus fixing the board body 100 and the contact plate 11, thereby achieving the connection between the circuit board 20 and the expansion card 10. Stable connection; when it is necessary to separate the circuit board 20 from the expansion card 10, by pulling the elastic member 430 towards the first stop member 213, the elastic part 212 can be deformed, so that the fastening state between the protrusion 2121 and the first fixing member 220 will be canceled, thus unlocking the fixation between the board body 100 and the chassis 30. By pulling the sliding member 300 towards the second stop member 110, the mating groove 310 is disengaged from the barb 12 on the contact plate 11, thus unlocking the fixation between the board body 100 and the contact plate 11. This improves the convenience of disassembling the board body 100 without the need for other tools or screws, thus facilitating the installation and disassembly of the circuit board 20 and the expansion card 10.

[0083] The fixing structure of the circuit board 20 provided by the embodiment of the present application can be set with one or more according to actual application, each fixing mechanism corresponds to one circuit board 20 and one expansion card 10, and the plurality of fixing mechanisms respectively fix each group of circuit board 20 and expansion card 10 on the case 30.

[0084] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the technology disclosed herein.

[0085] It is intended that the embodiments of the present application cover any and all variations, uses, or adaptations of the embodiments of the present application and include what is described in the claims and their equivalents.

[0086] The specification and examples are to be considered exemplary only, with the true scope and spirit of the embodiments of the present application being indicated by the following claims.

[0087] It is to be understood that the embodiments of the present application are not limited to the precise structures as herein described and illustrated in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the present application. The scope of the present application is limited only by the appended claims.

Claims

1. A fixing structure of a circuit board for connecting an expansion card (10) and a circuit board (20), the expansion card (10) being provided with a contact plate (11), characterized in that, The fixing mechanism comprises: a plate body (100) for connecting the circuit board (20); a connecting assembly (200) comprising a connecting piece (210) and a first fixing piece (220) arranged in cooperation with the connecting piece (210), the connecting piece (210) being fixed to any one of the plate body (100) and a case (30), the first fixing piece (220) being fixed to the other one, the first fixing piece (220) being configured to be connected or disconnected with the first fixing piece (220) when the connecting piece (210) is in a preset position; a sliding piece (300) slidingly arranged on the plate body (100), the sliding piece (300) being arranged close to an end of the plate body (100) away from the connecting assembly (200), the sliding piece (300) being configured to be connected or disconnected with the contact plate (11) when the sliding piece (300) is in a locked or unlocked position; the connecting piece (210) comprises a fixed part (211) and an elastic part (212) connected to the fixed part (211), the fixed part (211) being connected to the plate body (100), the fixed part (211) being mounted at one end of the plate body (100), the elastic part (212) being provided with a protruding piece (2121), the protruding piece (2121) being configured to be buckled with the first fixing piece (220) under the elastic action of the elastic part (212) when the connecting piece (210) is in a preset position, so as to limit the connecting piece (210); the connecting piece (210) further comprises a first stop piece (213), the first stop piece (213) being fixed on the fixed part (211), the elastic part (212) being configured to cancel the buckling of the protruding piece (2121) with the first fixing piece (220) when abutting against the first stop piece (213).

2. The fixing structure for a circuit board according to claim 1, wherein One end of the sliding piece (300) is provided with a cooperation groove (310), the cooperation groove (310) being used for plugging or unplugging with the barb (12) on the contact plate (11).

3. The fixing structure for a circuit board according to claim 2, wherein Further comprising an anti-disconnection assembly (400) for preventing the sliding piece (300) and the expansion card (10) from being unplugged.

4. The fixing structure for a circuit board according to claim 3, wherein The anti-disconnection assembly (400) comprises: a second fixing piece (410) fixed on the sliding piece (300); a third fixing piece (420) fixed on the plate body (100); an elastic piece (430) connecting the second fixing piece (410) and the third fixing piece (420), the elastic piece (430) being configured to make the sliding piece (300) be in a locked or unlocked position when being in a natural or compressed state.

5. The fixing structure for a circuit board according to claim 4, wherein The bottom of the sliding piece (300) is provided with a guide surface (320), which is arranged at one end of the sliding piece (300) and is provided with a matching groove (310). The guide surface (320) is configured to contact the contact plate (11) to drive the sliding piece (300) to slide during the movement of the plate body (100) towards the expansion card (10), so that the sliding piece (300) reaches the locking position.

6. The fixing structure for a circuit board according to any one of claims 1 to 5, characterized in that, The plate body (100) is fixed with a second stop piece (110), which is configured to be abutted by the sliding piece (300) when the sliding piece (300) is in the unlocking position.

7. The fixing structure for a circuit board according to any one of claims 1 to 5, wherein Any one of the sliding piece (300) and the plate body (100) is provided with a limiting hole (330) arranged along the sliding direction of the sliding piece (300), and the other is provided with a limiting piece (120) arranged in the limiting hole (330). The limiting hole (330) is provided with a locking position and an unlocking position, and the limiting piece (120) is configured to be in the locking position when the sliding piece (300) is slid to the locking position, and in the unlocking position when the sliding piece (300) is slid to the unlocking position.

8. The fixing structure for a circuit board according to any one of claims 1 to 5, wherein The plate body (100) is provided with a support frame (140), which is configured to be abutted by the circuit board (20) when the plate body (100) and the circuit board (20) are connected.

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