Circuit board module and server

Abstract

The present application relates to the technical field of servers. Disclosed are a circuit board module and a server. The circuit board module comprises a circuit board, a first connecting member and a second connecting member, wherein in a first direction, the first connecting member and the second connecting member are respectively connected to opposite ends of the circuit board in a snap-fit manner; the side of the first connecting member facing away from the circuit board is configured to snap-fit with the inner wall of a chassis; and the side of the second connecting member facing away from the circuit board is configured to snap-fit with the inner wall of the chassis. The circuit board is fixed and limited by means of the first connecting member and the second connecting member to prevent the circuit board from moving in the first direction, thereby preventing the problem of abnormal electrical connections between electrical components and the circuit board caused by the displacement of the circuit board, such that the server operates stably, thereby improving the service performance of the server. The first connecting member and the second connecting member are both snap-fitted to the circuit board, thereby reducing the number of connecting components, facilitating the installation and maintenance of the circuit board module, and improving the installation efficiency and maintenance efficiency of the server.

Description

Circuit board modules and servers

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202510187469.9, filed on February 20, 2025, entitled "Circuit Board Module and Server", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of server technology, and in particular to a circuit board module and a server. Background Technology

[0004] A server is a device used to provide data processing. Data in a server is stored in a memory, which is connected to a circuit board to facilitate data retrieval.

[0005] In related technologies, the circuit board is housed within the server chassis and has connection terminals. The memory is connected to the circuit board via these connection terminals. The circuit board and chassis are connected by screws; however, this connection method makes the installation and maintenance of the circuit board inconvenient. Summary of the Invention

[0006] This application provides a circuit board module and a server to at least solve the problem of inconvenient installation and maintenance of circuit boards in related technologies.

[0007] In a first aspect, this application provides a circuit board module for use in a server, the server including a chassis, and the circuit board module disposed within the chassis; the circuit board module includes:

[0008] Circuit board.

[0009] The first connector, along the first direction, is snap-fitted to one end of the circuit board, and the side of the first connector facing away from the circuit board is used to snap-fit ​​with the inner wall of the chassis.

[0010] The second connector, along the first direction, is snap-fitted to the other end of the circuit board. The side of the second connector facing away from the circuit board is used to snap-fit ​​with the inner wall of the chassis.

[0011] The first direction intersects with the thickness direction of the circuit board.

[0012] The circuit board module provided in this application uses a first connector and a second connector to fix and limit the circuit board, preventing it from moving along a first direction. This facilitates the connection between the circuit board and the hard drive and prevents electrical connection abnormalities between the hard drive and the circuit board caused by circuit board movement, thus ensuring stable server operation and improving server performance. Both the first and second connectors are connected to the circuit board via a snap-fit ​​mechanism. This reduces the number of screws, facilitating circuit board installation and maintenance, thereby improving installation and maintenance efficiency. With fewer screws, the usable area of ​​the circuit board increases, allowing for a smaller circuit board size. While meeting server performance requirements, this reduces the space occupied by the circuit board, contributing to server miniaturization and reducing production costs.

[0013] Secondly, this application also provides a server, including: a chassis and the circuit board module provided in the first aspect. The chassis has a receiving cavity, and the circuit board module is disposed within the receiving cavity.

[0014] The server provided in this application includes the circuit board module in any of the embodiments of the first aspect mentioned above, thus improving the server's installation and maintenance efficiency, as well as its operational stability and performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a schematic diagram of the circuit board module provided in an embodiment of this application;

[0017] Figure 2 is an exploded view of the circuit board module provided in an embodiment of this application;

[0018] Figure 3 is a schematic diagram from a first perspective of the first connector in the circuit board module provided in the embodiment of this application;

[0019] Figure 4 is a schematic diagram of the second connector in the circuit board module provided in the embodiment of this application;

[0020] Figure 5 is a magnified view of part I in Figure 1;

[0021] Figure 6 is a magnified view of part II in Figure 1;

[0022] Figure 7 is a magnified view of part I in Figure 2;

[0023] Figure 8 is a magnified view of part II in Figure 2;

[0024] Figure 9 is a schematic diagram of a circuit board in a circuit board module provided in an embodiment of this application;

[0025] Figure 10 is a magnified view of part I in Figure 9;

[0026] Figure 11 is a partial enlarged view of II in Figure 9;

[0027] Figure 12 is a schematic diagram of the connection between a circuit board and a first connector in a circuit board module provided in an embodiment of this application;

[0028] Figure 13 is a schematic diagram of the connection between a circuit board and a second connector in a circuit board module provided in an embodiment of this application.

[0029] Figure 14 is a schematic diagram of the connection between a circuit board module and a chassis according to an embodiment of this application;

[0030] Figure 15 is a magnified view of part I in Figure 14;

[0031] Figure 16 is a partial sectional view of Figure 15;

[0032] Figure 17 is a schematic diagram from a second perspective of the first connector in the circuit board module provided in the embodiment of this application;

[0033] Figure 18 is a schematic diagram of the fourth latching part of the chassis provided in an embodiment of this application;

[0034] Figure 19 is a schematic diagram of the connection between a circuit board module and a chassis according to an embodiment of this application;

[0035] Figure 20 is a schematic diagram of a chassis provided in an embodiment of this application;

[0036] Figure 21 is a partial sectional view of II in Figure 14;

[0037] Figure 22 is a partial sectional view of I in Figure 19.

[0038] The above-mentioned figures include the following reference numerals: 100-Circuit board module; 110-Circuit board; 111-Notch; 112-First snap-fit ​​hole; 113-Second snap-fit ​​hole; 114-First protruding extension; 115-Second protruding extension; 116-Guide hole; 117-Connecting terminal; 120-First connector; 121-First slot; 1211-First stop; 122-First latch; 123-Third snap-fit; 1231-First part; 1232-Second part; 124-Third latch; 130-Second connector; 131-Second slot; 1311-Second stop; 132-Second latch; 140-Guide slope; 200-Chassis; 210-Fourth snap-fit; 220-Guide; 230-Stop hook; 300-Hard disk. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0040] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. The terms "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, the range of which is within an acceptable deviation range, wherein the acceptable deviation range is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where an acceptable deviation range for approximate parallelism can be, for example, within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where an acceptable deviation range for approximate perpendicularity can also be, for example, within 5°. "Equal" includes absolute equality and approximate equality, where an acceptable deviation range for approximate equality can be, for example, a difference between the two equal items being less than or equal to 5% of either one. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] Referring to Figures 1 and 2, some embodiments of this application provide a circuit board module 100 applied to a server. It is understood that the server includes a chassis 200, and the circuit board module 100 is disposed within the chassis 200. The chassis 200 provides support and connection for the circuit board module 100. The chassis 200 also serves as a protective structure for the circuit board module 100, protecting it from dust, moisture, and other external environmental factors that could enter the chassis 200 and affect its heat dissipation performance and server performance, thereby improving the server's data processing performance and operational stability.

[0043] In some embodiments of this application, the circuit board module 100 includes a circuit board 110, which can be electrically connected to electrical components. For example, the circuit board 110 can be equipped with a central processing unit (CPU), memory, etc., to meet the data processing needs of the server. The memory can be a hard disk 300, etc., and this application does not specify a particular type.

[0044] When the hard disk 300 is connected to the circuit board 110, different connection terminals 117 can be set on the circuit board 110. The hard disk 300 is connected to the circuit board 110 through the connection terminals 117, so that the circuit board 110 and the hard disk 300 can achieve a stable electrical connection, making the server's data processing and signal interaction more stable.

[0045] For example, different types of hard drives 300 have different interfaces. Common hard drive 300 interfaces include serial interfaces, such as SAS (Serial Attached SCSI), SATA (Serial ATA), and NVMe (NVM Express). In some embodiments of this application, the structure of the connection terminal 117 matches the interface of the hard drive 300, so that the hard drive 300 can directly engage with the connection terminal 117 through the interface.

[0046] In practice, the assembly force between the interface and the connection terminal 117 of different hard drives 300 varies. For example, the assembly force between SAS and SATA interface hard drives 300 and the connection terminal 117 is typically 25N, while the assembly force between NVMe interface hard drives 300 and the connection terminal 117 is typically 59N. Due to the different assembly forces between the hard drive 300 and the circuit board 110, abnormal situations such as increased assembly force, deformation of the circuit board 110, and insufficient engagement distance between the interface and the connection terminal 117 of the hard drive 300 can occur. This leads to abnormal electrical connections between the hard drive 300 and the circuit board 110, reducing the server's data retrieval and storage speed from the hard drive 300, thus affecting the server's performance and stability.

[0047] Furthermore, within the chassis 200, the circuit board 110 and the inner wall of the chassis 200 are typically fixed with screws. In some embodiments of this application, the number of screws can be increased, providing multiple fixing points between the circuit board 110 and the chassis 200 wall, thereby improving the connection stability between the circuit board 110 and the chassis 200. However, this connection method reduces the installation and maintenance efficiency of the circuit board 110.

[0048] It's understandable that increasing the number of screws and screw holes on circuit board 110 leads to changes in the trace layout and reduces the usable area for the traces. To meet the server's data processing needs, the trace area of ​​circuit board 110 needs to be increased to ensure a reasonable trace layout, reduce signal interference, improve the reliability and stability of the server's signal processing, and enhance the heat dissipation efficiency of circuit board 110, keeping its operating temperature within a stable range and thus improving server performance. However, increasing the area of ​​circuit board 110 hinders server miniaturization. Furthermore, the increased area also alters the deformation of circuit board 110, potentially leading to a decrease in server performance.

[0049] To address the aforementioned deficiencies, referring to Figures 1 to 6, in some embodiments of this application, the circuit board module 100 further includes a first connector 120 and a second connector 130. The first connector 120 and the second connector 130 are disposed at opposite ends of the circuit board 110 along a first direction (X) to fix and limit the circuit board 110, preventing it from moving along the first direction (X). This facilitates the connection between the circuit board 110 and the hard disk 300 and also prevents electrical connection abnormalities between the hard disk 300 and the circuit board 110 caused by positional movement of the circuit board 110, thereby ensuring stable server operation and improving server performance.

[0050] In some embodiments of this application, the first connector 120 and the circuit board 110 are connected by a snap-fit ​​mechanism. This snap-fit ​​connection reduces the number of screws, facilitating the installation and maintenance of the circuit board 110 and improving installation and maintenance efficiency. With fewer screws, the usable area of ​​the circuit board 110 increases, allowing for a smaller overall size. This reduces the space occupied by the circuit board 110 while still meeting server performance requirements, contributing to server miniaturization and reducing production costs.

[0051] In some embodiments of this application, along the first direction (X), the side of the first connector 120 opposite to the circuit board 110 and the chassis wall of the chassis 200 are connected by a snap-fit, so as to facilitate the installation and disassembly of the circuit board module 100 and the chassis 200, reduce the installation and maintenance difficulty of the server, and improve the installation and maintenance efficiency.

[0052] The second connector 130 and the circuit board 110 are connected by a snap-fit ​​mechanism. This snap-fit ​​connection reduces the number of screws required, facilitating the installation and maintenance of the circuit board 110 and improving installation and maintenance efficiency. With fewer screws, the usable area of ​​the circuit board 110 increases, allowing for a smaller overall size. This reduces the space occupied by the circuit board 110 while still meeting server performance requirements, contributing to server miniaturization and reducing production costs.

[0053] In some embodiments of this application, along the first direction (X), the side of the second connector 130 opposite to the circuit board 110 and the chassis 200 are connected by a snap-fit, so as to facilitate the installation and disassembly of the circuit board module 100 and the chassis 200, reduce the installation and maintenance difficulty of the server, and improve the installation and maintenance efficiency.

[0054] It is understood that the first connector 120 and the second connector 130 are connected to both ends of the circuit board 110 along the first direction (X). This arrangement improves the stability of the circuit board module 100, reduces the deformation of the circuit board 110, and makes the electrical connection between the hard disk 300 and the circuit board 110 stable, thereby improving the working stability of the server.

[0055] In some embodiments of this application, the first direction (X) intersects with the thickness direction (Y) of the circuit board 110. That is, the first direction (X) can be either the length direction or the width direction of the circuit board 110. Some embodiments of this application are illustrated using the first direction (X) along the length direction of the circuit board 110 as an example. Referring to FIG1, the first direction (X) is defined as X, and the thickness direction (Y) of the circuit board is defined as Y.

[0056] In some embodiments of this application, both the first connector 120 and the second connector 130 are connected to the circuit board 110 via a snap-fit ​​connection. The snap-fit ​​connection can be achieved in various ways. In some embodiments of this application, at least one of the first connector 120 and the second connector 130 has a slot. In the first connector 120, the first connector 120 is connected to the circuit board 110 via the slot; in the second connector 130, the second connector 130 is connected to the circuit board 110 via the slot. In some embodiments of this application, the first connector 120 and / or the second connector 130 are connected to the circuit board 110 via corresponding slots. Thus, the slots restrict the movement of the circuit board 110, improving the structural stability of the circuit board module 100. Furthermore, the card slot has a simple structure, which facilitates the connection between the first connector 120 and / or the second connector 130 and the circuit board 110, making the installation and maintenance of the circuit board module 100 more convenient, and also facilitating the production of the first connector 120 and / or the second connector 130, thereby improving the production efficiency of the circuit board module 100 and the server.

[0057] Referring to Figures 1, 2, 3 and 5, in some embodiments of this application, the first connector 120 has a first slot 121 extending along a first direction (X), and the first connector 120 and the circuit board 110 are connected through the first slot 121.

[0058] For example, the first slot 121 extends along a first direction (X), with the opening of the first slot 121 facing the circuit board 110. Thus, the circuit board 110 housing enters the first slot 121 relative to the first connector 120 along the first direction (X). When maintaining the circuit board 110, it is only necessary to move the circuit board 110 along the first direction (X) towards the side where the second connector 130 is located until it is disengaged from the first slot 121. In this way, the first slot 121 eliminates the need for screws during the installation of the circuit board 110, facilitating its installation and removal, thereby improving the efficiency of the installation and removal of the circuit board module 100 and the server, and facilitating maintenance of the circuit board module 100 and the server. Furthermore, reducing the number of screws increases the usable area for the circuit board 110's wiring, reduces the structural size of the circuit board 110, and lowers its space ratio, thus contributing to the miniaturization and weight reduction of the server.

[0059] In some embodiments of this application, the structures of the first slot 121 and the end of the circuit board 110 are adapted to each other. That is, along the first direction (X), the inner wall of the first slot 121 and the end face of the circuit board 110 are matched. Along the second direction (Z), the extension length of the first slot 121 is the same as the extension length of the end of the circuit board 110 that is matched with it. In this way, the structure of the first slot 121 prevents the circuit board 110 from moving along the first direction (X), thereby reducing the probability of electrical connection abnormalities between the circuit board 110 and the hard disk 300 and improving the operational reliability of the server.

[0060] Referring to Figures 1, 2, 4 and 6, in some embodiments of this application, the second connector 130 has a second slot 131 extending along a first direction (X), and the second connector 130 and the circuit board 110 are connected through the second slot 131.

[0061] The second card slot 131 has a similar structure and function to the first card slot 121, and the structure of the second card slot 131 will not be described again in this section.

[0062] It is understood that the first connector 120 is connected to the circuit board 110 through the first slot 121, and the second connector 130 is connected to the circuit board 110 through the second slot 131. The two ends of the circuit board 110 are respectively located in the corresponding first slot 121 and the corresponding second slot 131. Thus, the first slot 121 and the second slot 131 can also restrict the movement of the circuit board 110 along the second direction (Z) and restrict the rotation of the circuit board 110 around an axis parallel to the first direction (X). In this way, when the hard disk 300 and the circuit board 110 are connected, the circuit board 110 is prevented from deforming and flipping due to the force applied by the hard disk 300. Therefore, some embodiments of this application improve the structural stability of the circuit board module 100 through such a first connector 120 and a second connector 130, making the electrical connection between the hard disk 300 and the circuit board 110 stable, thereby improving the operational stability of the server.

[0063] In some embodiments of this application, the first direction (X), the second direction (Z), and the thickness direction (Y) of the circuit board 110 are perpendicular to each other. Specifically, the first direction (X) is along the length or width direction of the circuit board 110, and the second direction (Z) is along the width or length direction of the circuit board 110. In conjunction with the foregoing, some embodiments of this application will be described using the example of the first direction (X) being along the length direction of the circuit board 110 and the second direction (Z) being along the width direction of the circuit board 110. Referring to Figure 1, the second direction (Z) is defined as Z.

[0064] Furthermore, in some embodiments of this application, only the first connector 120 may have a first slot 121; or only the second connector 130 may have a second slot 131; or the first connector 120 may have a first slot 121 and the second connector 130 may have a second slot 131.

[0065] In some embodiments of this application, at least one of the first slot 121 and the second slot 131 has a stop portion; the stop portion of the first slot 121 stops at the end of the circuit board 110; the stop portion of the second slot 131 stops at the end of the circuit board (110).

[0066] For example, the stop can be a protruding structure, a recessed groove structure, etc., but this application embodiment does not require it to be.

[0067] The first slot 121 has a first stop portion 1211. Along the first direction (X), the first stop portion 1211 is located on the side of the first slot 121 facing the circuit board 110 and stops at the end of the circuit board 110.

[0068] In some embodiments of this application, referring to Figures 1, 2, 3, and 5, the first stop portion 1211 may protrude relative to the groove wall of the first slot 121 along the thickness direction (Y) of the circuit board 110. That is, the first stop portion 1211 may be a protruding structure, a boss structure, a stepped structure, etc., which is not required in this embodiment. Along the first direction (X), the shape of the first stop portion 1211 matches the end of the circuit board 110. Thus, through the stop cooperation between the first stop portion 1211 and the circuit board 110, the movement of the circuit board 110 along the first direction (X) is better restricted, so that the circuit board module 100 remains stable relative to the chassis 200, thereby improving the stability and reliability of server operation. It is understood that by setting the first stop part 1211, the first stop part 1211 and the circuit board 110 form a stop connection relationship in a face-to-face cooperation manner, which not only restricts the movement of the circuit board 110, but also facilitates the installation of the circuit board 110 and the first connector 120, thereby improving the installation efficiency and maintenance efficiency of the circuit board module 100 and the server.

[0069] Along the second direction (Z), the extension length of the first stop portion 1211 may be equal to or less than the extension length of the circuit board 110, and this embodiment does not limit this.

[0070] Referring to Figures 1, 2, 4 and 6, the second slot 131 has a second stop portion 1311. Along the first direction (X), the second stop portion 1311 is located on the side of the second slot 131 facing the circuit board 110 and stops at the end of the circuit board 110.

[0071] The structure and function of the second stop portion 1311 in some embodiments of this application are similar to those of the first stop portion 1211, and will not be described again in this section.

[0072] The circuit board 110 has various structures. Referring to Figures 1, 2, and 8, in some embodiments of this application, the circuit board 110 has a notch 111 along a first direction (X), and the notch 111 is located at the end of the circuit board 110 facing the second slot 131. In order to improve the connection stability of the circuit board 110 and the second connector 130 through the second slot 131, in some embodiments of this application, the shapes of the notch 111 and the second stop portion 1311 are matched with each other, and the second stop portion 1311 and the notch 111 are connected to stop the circuit board 110.

[0073] Along the second direction (Z), the extension length of the second stop 1311 can be less than or equal to the extension length of the notch 111, so that the circuit board 110 and the second stop 1311 can be connected to each other, thereby improving the assembly efficiency of the circuit board module 100. At the same time, the cooperation between the second stop 1311 and the notch 111 provides a positioning function for the installation of the circuit board 110, preventing the circuit board 110 from being deformed or damaged due to misalignment between the circuit board 110 and the second connector 130, further improving the assembly efficiency of the circuit board module 100.

[0074] In some embodiments of this application, along the thickness direction (Y) of the circuit board 110, the extension length of the second stop portion 1311 may be less than the extension length of the notch 111, or greater than the extension length of the notch 111.

[0075] When the extension length of the second stop portion 1311 along the thickness direction (Y) of the circuit board 110 is less than the extension length of the notch 111, the second stop portion 1311 still forms the stopping and positioning functions of the circuit board 110 by cooperating with the notch 111. However, the circuit board 110 is prone to shaking or misinsertion, or even deformation.

[0076] When the extension length of the second stop portion 1311 is greater than the extension length of the notch 111 along the thickness direction (Y) of the circuit board 110, the second stop portion 1311 will cause the groove space of the second slot 131 to increase, making the circuit board 110 prone to shaking and causing uneven stress on the circuit board 110, resulting in deformation. Furthermore, the increased groove space of the second slot 131 increases the structural size of the second connector 130 and the space ratio of the second connector 130, which is not conducive to reducing the space ratio of the circuit board module 100 and the server.

[0077] Therefore, in some embodiments of this application, along the thickness direction (Y) of the circuit board 110, the extension length of the second stop portion 1311 is equal to the extension length of the notch 111, so that the structure of the circuit board module 100 is stabilized by the cooperation between the second stop portion 1311 and the notch 111, and the performance reduction of the server caused by the deformation of the circuit board 110 is avoided.

[0078] For example, the circuit boards 110 have different sizes, and each circuit board 110 has multiple snap-fit ​​segments at both ends along the first direction (X). These multiple snap-fit ​​segments are spaced apart along the second direction (Z). The first slot 121 of the first connector 120 and the second slot 131 of the second connector 130 correspond one-to-one with the snap-fit ​​segments of the circuit board 110. In this way, the circuit board 110 is snapped into the first connector 120 and the second connector 130 at multiple positions, thereby improving the structural stability of the circuit board module 100.

[0079] In some embodiments of this application, the circuit board 110 is provided with a plurality of snap-fit ​​portions, the first connector 120 is connected to the circuit board 110 through at least one snap-fit ​​portion, and the second connector 130 is connected to the circuit board 110 through at least one snap-fit ​​portion.

[0080] For example, the snap-fit ​​part can be a groove-shaped structure, a stepped structure, etc. Some embodiments of this application do not make specific requirements in this regard. The snap-fit ​​part is adapted to the structure on the circuit board and achieves a stable snap-fit.

[0081] Referring to Figures 1, 2, 3, and 5, in some embodiments of this application, the circuit board 110 is provided with a first latching portion, and the first connector 120 is provided with a first latch 122. The first connector 120 and the circuit board 110 are connected through the first latch 122 and the first latching portion. Thus, the latching engagement between the first latch 122 and the first latching portion further restricts the movement of the circuit board 110 along the first direction (X), thereby stabilizing the structure of the circuit board module 100.

[0082] For example, the first snap 122 may be a resilient snap.

[0083] Referring to Figures 1, 2, 4 and 6, in some embodiments of this application, the circuit board 110 is provided with a second snap-fit ​​portion, the second connector 130 is provided with a second buckle 132, and the second connector 130 and the circuit board 110 are snapped together by the second buckle 132 and the second snap-fit ​​portion.

[0084] In some embodiments of this application, the second snap-fit ​​portion has the same structure and function as the first snap-fit ​​portion, and the second buckle 132 has the same structure and function as the first buckle 122, which will not be described again.

[0085] For example, the second snap 132 may be a resilient snap.

[0086] In some embodiments of this application, only the first connector 120 and the circuit board 110 may be connected through the first latch 122 and the first latching portion, or only the second connector 130 and the circuit board 110 may be connected through the second latch 132 and the second latching portion, or when the first connector 120 and the circuit board 110 are connected through the first latch 122 and the first latching portion, the second connector 130 and the circuit board 110 may be connected through the second latch 132 and the second latching portion.

[0087] When the first connector 120 and the circuit board 110 are connected through the first latch 122 and the first latching part, the second connector 130 and the circuit board 110 are connected through the second latch 132 and the second latching part. The first latch 122 and the second latch 132 exert tension on the circuit board 110 along the first direction (X). The load on the circuit board 110 along the first direction (X) is evenly distributed. In this way, the circuit board 110 is not easily deformed, and the electrical connection between the circuit board 110 and the hard disk 300 is stable, which is conducive to improving the reliability and stability of the server, as well as the performance of the server.

[0088] In addition, some embodiments of this application reduce the number of screws used to fix the circuit board 110 by engaging the first latch 122 and the second latch 132 with the first latching part and the second latching part of the circuit board 110, respectively. This facilitates the installation and maintenance of the circuit board module 100, reduces the cost and weight of the server, and helps to achieve server lightweighting.

[0089] Referring to Figures 1, 2, 3, 5, and 7, in some embodiments of this application, the first latching portion includes a first latching hole 112, which penetrates the circuit board 110 along the thickness direction (Y); and a first latch 122 engages with the wall of the first latching hole 112 along the first direction (X). Thus, the cooperation between the first latch 122 and the wall of the first latching hole 112 facilitates the connection and disassembly of the circuit board 110 and the first connector 120, improving the installation and maintenance efficiency of the circuit board module 100. Furthermore, the interaction between the first latch 122 and the first latching hole 112 restricts the movement of the circuit board 110 along the first direction (X), restricts the movement of the circuit board 110 along the thickness direction (Y), and restricts the rotation of the circuit board 110 around an axis parallel to the first direction (X). This stabilizes the structure of the circuit board module 100, preventing electrical connection abnormalities after the hard drive 300 and the circuit board 110 are connected, thereby ensuring the stable and reliable operation of the server. In addition, while meeting the wiring layout requirements, the circuit board 110, through the setting of the first latching hole 112, reduces the material cost and weight of the circuit board 110, thus reducing the cost and weight of the server.

[0090] Referring to Figures 1, 2, 4, 6 and 8, in some embodiments of this application, the second snap-fit ​​portion includes a second snap-fit ​​hole 113. Along the thickness direction (Y) of the circuit board 110, the second snap-fit ​​hole 113 penetrates the circuit board 110; along the first direction (X), the second buckle 132 snaps into the hole wall of the second snap-fit ​​hole 113.

[0091] In some embodiments of this application, the structure and function of the second snap-fit ​​hole 113 are the same as those of the first snap-fit ​​hole 112, and the structure and function of the second snap-fit ​​buckle 132 are the same as those of the first snap-fit ​​buckle 122, which will not be described again.

[0092] Referring to Figures 9, 10, and 12, the first snap-fit ​​portion includes a first protruding extension 114. Along the second direction (Z), the first protruding extension 114 protrudes from one edge of the circuit board 110. Along the first direction (X), the first latch 122 and the side of the first protruding extension 114 away from the first connector 120 snap together. Thus, the circuit board 110 is fixed by the snap-fit ​​engagement of the first snap-fit ​​portion and the first protruding extension 114, reducing the number of screws and facilitating the maintenance of the circuit board 110, thereby improving the installation and maintenance of the circuit board module 100.

[0093] It is understandable that for a small circuit board 110, if a hole structure is provided on the circuit board 110 and it is engaged with the first buckle 122, the usable area of ​​the circuit board 110's traces will decrease. Therefore, by providing the first protruding extension 114, not only can this problem be solved, but the installation of the circuit board 110 can also be satisfied, avoiding the need to provide different first connectors 120 for small circuit boards 110, thereby improving the applicability of the first connector 120.

[0094] Along the second direction (Z), the first protruding extension 114 may be located on either side of the opposite sides of the circuit board 110, which is not required in this embodiment.

[0095] Referring to Figures 9, 11, and 13, in some embodiments of this application, the second snap-fit ​​portion includes a second protruding extension 115. Along the second direction (Z), the second protruding extension 115 protrudes from one side edge of the circuit board 110; along the first direction (X), the second latch 132 snaps into the side of the second protruding extension 115 away from the second connector 130.

[0096] The structure and function of the second protruding extension 115 in some embodiments of this application are the same as those of the first protruding extension 114, and will not be described again.

[0097] In some embodiments of this application, the first protruding extension 114 and the second protruding extension 115 may be located on different sides of the circuit board 110 along the second direction (Z), or the first protruding extension 114 and the second protruding extension 115 may be located on the same side of the circuit board 110 along the second direction (Z).

[0098] When the first protruding extension 114 and the second protruding extension 115 are located on the same side of the circuit board 110, along the first direction (X), the two ends of the circuit board 110 are respectively connected to the first connector 120 and the second connector 130, which enables the load distribution of the circuit board 110 to be uniform, thereby avoiding structural deformation of the circuit board 110 caused by uneven stress, further improving the stability of the electrical connection between the hard disk 300 and the circuit board 110, making the server's working performance reliable and stable. Furthermore, the structure of the circuit board 110 is relatively regular, reducing the manufacturing difficulty of the circuit board 110.

[0099] In some embodiments of this application, the first protruding extension 114 and the second protruding extension 115 protrude along the second direction (Z) relative to the circuit board 110 by a certain length, so as to satisfy the stable connection with the corresponding first buckle 122 and the corresponding second buckle 132. This application does not require this.

[0100] The following describes the snap-fit ​​assembly structure of the circuit board module 100 and the chassis 200 in conjunction with the structure of the first connector 120 and the second connector 130.

[0101] Referring to Figures 14, 15, 16, 17, and 18, in some embodiments of this application, a third latching portion 123 is provided on the side of the first connector 120 opposite to the circuit board 110 along the first direction (X), and the third latching portion 123 extends along the second direction (Z); a fourth latching portion 210 is provided on the chassis 200 opposite to the first connector 120, and the fourth latching portion 210 extends along the second direction (Z); the third latching portion 123 is used to latch with the fourth latching portion 210.

[0102] For example, the third latching portion 123 may be recessed or protruding relative to the surface of the first connector 120 facing the wall of the chassis 200. Correspondingly, the fourth latching portion 210 may be protruding or recessed relative to the surface of the chassis 200 facing the wall of the first connector 120. In this way, the latching cooperation of the third latching portion 123 and the fourth latching portion 210 restricts the movement of the circuit board module 100 along the thickness direction (Y) of the circuit board module 100, preventing insufficient distance between the hard drive 300 and the circuit board 110, thereby improving the connection stability between the hard drive 300 and the circuit board 110, and further improving the stability and reliability of the server.

[0103] During implementation, the circuit board module 100 can be installed inside the chassis 200 by relative sliding between the third latching part 123 on the first connector 120 and the fourth latching part 210 on the chassis 200. In this way, the setting of the third latching part 123 and the fourth latching part 210 reduces the number of screws used to fix the circuit board module 100 and the chassis 200. This safer method is more convenient, thereby facilitating the installation and maintenance of the circuit board module 100.

[0104] In some embodiments of this application, along the first direction (X), a fifth latching portion is provided on the side of the second connector 130 opposite to the circuit board 110, and the fifth latching portion extends along the second direction (Z); a sixth latching portion is provided on the chassis 200 opposite to the second connector 130, and the sixth latching portion extends along the second direction (Z); the fifth latching portion is used to latch with the sixth latching portion.

[0105] The structure and function of the fifth latching portion in some embodiments of this application are the same as those of the third latching portion 123, and the structure and function of the sixth latching portion are the same as those of the fourth latching portion 210, which will not be described again.

[0106] In some embodiments of this application, the first connector 120 and the chassis 200 are connected to the fourth connector 210 via the third connector 123, and the second connector 130 and the chassis 200 are connected via the fifth connector and the sixth connector. Thus, the first connector 120 and the second connector 130 together restrict the movement and deformation of the circuit board 110 along the thickness direction (Y) of the circuit board 110, making the connection between the circuit board 110 and the hard disk 300, as well as the connection between the circuit board module 100 and the chassis 200, stable and reliable, thereby ensuring the stability of the server's operation and its performance.

[0107] Referring to Figures 14, 15, 16, 17, and 18, the third latching portion 123 includes a first portion 1231 and a second portion 1232. Along the second direction (Z), the first portion 1231 and the second portion 1232 are arranged sequentially, and along the thickness direction (Y) of the circuit board 110, the extension length of the first portion 1231 is less than the extension length of the second portion 1232; the shapes of the fourth latching portion 210 and the third latching portion 123 are matched.

[0108] It is understood that, along the second direction (Z), the third latching portion 123 forms a structure that is narrow at the top and wide at the bottom through the arrangement of the first portion 1231 and the second portion 1232. Correspondingly, since the shape of the fourth latching portion 210 matches that of the third latching portion 123, the fourth latching portion 210 also has a structure that is narrow at the top and wide at the bottom. This facilitates the sliding of the third latching portion 123 and the fourth latching portion 210 along the second direction (Z), making the connection between the circuit board module 100 and the chassis 200 more convenient.

[0109] As can be understood, referring to Figures 16, 17, and 18, the narrower first part 1231 of the third latching part 123 and the narrower part of the fourth latching part 210 latch together, and the wider second part 1232 of the third latching part 123 and the wider part of the fourth latching part 210 latch together, thereby restricting the movement of the circuit board module 100 within the chassis 200 along the thickness direction (Y) of the circuit board 110, thus ensuring a stable connection between the circuit board module 100 and the chassis 200.

[0110] The fifth latching portion includes a third part and a fourth part, which are arranged sequentially along the second direction (Z) and along the thickness direction (Y) of the circuit board 110. The extension length of the third part is less than the extension length of the fourth part; the sixth latching portion and the fifth latching portion have matching shapes.

[0111] The structure and function of the fifth latching portion in some embodiments of this application are the same as those of the third latching portion 123, and the structure and function of the sixth latching portion are the same as those of the fourth latching portion 210, which will not be described again.

[0112] In some embodiments of this application, the circuit board module 100 is connected to the chassis 200 via a third latching portion 123 on the first connector 120 and a fifth latching portion on the second connector 130, thereby restricting the movement of the circuit board module 100 within the chassis 200 along the thickness direction (Y) of the circuit board 110. To prevent the circuit board module 100 from moving relative to the chassis 200 along the first direction (X), causing the circuit board module 100 and chassis 200 to disengage, in some embodiments of this application, a third latch 124 is provided on the side of the first connector 120 opposite to the circuit board 110 along the first direction (X); the third latch 124 is located on the side of the third latching portion 123 opposite to the circuit board 110 along the thickness direction (Y) of the circuit board 110; the third latch 124 is used to latch with the chassis wall of the chassis 200 along the first direction (X).

[0113] For example, the chassis 200 has a protruding structure or a stepped structure on its wall for the third latch 124 to engage with the chassis 200.

[0114] In some embodiments of this application, the third latch 124 can be an elastic latch, which facilitates the installation and removal of the circuit board module 100 and the chassis 200 through the elastic force of the elastic latch, thereby reducing the maintenance difficulty of the server and improving maintenance efficiency.

[0115] In some embodiments of this application, along the first direction (X), the second connector 130 is provided with a fourth buckle on the side opposite to the circuit board 110; along the thickness direction (Y) of the circuit board 110, the fourth buckle is located on the side opposite to the circuit board 110 of the fifth latching part; the fourth buckle is used to latch with the wall of the chassis 200 along the first direction (X).

[0116] The connection structure and function of the fourth clip to the wall of the chassis 200 are the same as those of the third clip 124 to the wall of the chassis 200, and will not be described again.

[0117] Thus, in some embodiments of this application, the circuit board module 100, through the provision of the third latch 124 and the fourth latch, can restrict the movement of both ends of the circuit board module 100 relative to the chassis 200 in the second direction (Z) along the first direction (X), further stabilizing the connection between the circuit board module 100 and the chassis 200. Furthermore, since both ends of the circuit board 110 module are connected to the chassis 200 along the first direction (X), it ensures uniform load distribution on the circuit board module 100, thereby preventing deformation of the circuit board 110 during use, ensuring a stable electrical connection between the hard drive 300 and the circuit board 110, and further enhancing the stability and reliability of the server.

[0118] Referring to Figures 19, 20, and 21, in some embodiments of this application, a guide portion 220 is provided on the chassis 200, extending along a second direction (Z); a guide hole 116 is provided on one side of the circuit board 110 along the thickness direction (Y); the guide hole 116 is used for the guide portion 220 to pass through along the second direction (Z). Thus, the guide hole 116 and the guide portion 220 provide guidance and positioning for the installation of the circuit board module 100, facilitating the connection between the circuit board module 100 and the chassis 200, and preventing damage to the circuit board 110 caused by misalignment during installation.

[0119] In some embodiments of this application, at least one of the guide portion 220 and the hole wall of the guide hole 116 has a guide slope 140. The guide slope 140 is provided to guide the formation of the guide portion 220 through the guide hole 116, which facilitates the installation and removal of the circuit board module 100.

[0120] In some embodiments of this application, there are multiple guide portions 220, which can be spaced apart along a first direction (X). Correspondingly, there can also be multiple guide holes 116 on the circuit board 110. The multiple guide holes 116 are arranged in an array on the circuit board 110, with each row of guide holes 116 corresponding to the same guide portion 220 and allowing the guide portion 220 to pass through. In this way, by setting multiple guide portions 220 and multiple guide holes 116, the force distribution of the circuit board module 100 is made uniform, thereby providing multi-directional support for the circuit board 110 through the guide portions 220 and reducing the deformation of the circuit board 110.

[0121] In some embodiments of this application, along the thickness direction (Y) of the circuit board 110, the connection terminal 117 and the guide hole 116 on the circuit board 110 are located on opposite sides of the circuit board 110. In this way, when the hard disk 300 and the connection terminal 117 are plugged in, the assembly force between the hard disk 300 and the circuit board 110 and the supporting effect of the guide portion 220 cancel each other out, thereby preventing the circuit board 110 from deforming and further ensuring the stable electrical connection between the hard disk 300 and the circuit board 110, so that the working performance of the server is stable.

[0122] In some embodiments of this application, a stop member is provided inside the chassis 200; along the thickness direction (Y) of the circuit board 110, a connection terminal 117 is provided on one side of the circuit board 110, the connection terminal 117 is used to connect electrical components, and the side of the circuit board 110 opposite to the connection terminal 117 is used for the stop member to stop and engage. Thus, by stopping the circuit board 110 on the side opposite to the connection terminal 117, the stop member prevents the circuit board 110 from rotating around an axis parallel to the first direction (X), and also provides a stopping and supporting effect on the circuit board 110 along its thickness direction (Y), thereby avoiding deformation of the circuit board 110 caused by the mechanical force generated when electrical components are assembled onto the circuit board 110 through the connection terminal 117. This ensures a stable and reliable mechanical and electrical connection between the electrical components and the circuit board 110, further ensuring the stable operation of the server.

[0123] Referring to Figures 19, 20, and 22, the stop includes a stop hook 230, which is rotatably connected to the wall of the chassis 200. The stop hook 230 rotates relative to the wall of the chassis 200 to stop the circuit board 110 on the side of the circuit board 110 away from the connection terminal 117 along the thickness direction (Y).

[0124] It is understood that the stop hook 230 is rotatably connected to the wall of the chassis 200. The stop hook 230 has a stop position and a clearance position. In the stop position, along the thickness direction (Y) of the circuit board 110, the stop hook 230 stops on the side of the circuit board 110 away from the connection terminal 117, so as to support the circuit board 110 through the stop hook 230, avoid the deformation of the circuit board 110 when the hard disk 300 and the circuit board 110 are connected, and improve the connection stability of the circuit board 110 and the hard disk 300.

[0125] In the open position, the stop hook 230 and the circuit board 110 are disengaged, facilitating the installation and removal of the circuit board module 100 and the chassis 200.

[0126] There can be one or more stop members. When there are multiple stop members, the multiple stop members can be arranged at intervals along the first direction (X) inside the chassis 200. The embodiments of this application do not make specific requirements on the number of stop members.

[0127] Some embodiments of this application may also provide a server, including: a chassis 200 and a circuit board module 100. The chassis 200 has a receiving cavity; the circuit board module 100 is the circuit board module 100 in any embodiment of the first aspect of this application, and the circuit board module 100 is disposed within the receiving cavity.

[0128] In some embodiments of this application, the server includes the circuit board module 100 in any of the embodiments of the first aspect described above, thereby improving the server's installation and maintenance efficiency, as well as its operational stability and performance.

[0129] The circuit board module and server provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A circuit board module, characterized in that, Applied to a server, the server includes a chassis (200), and the circuit board module (100) is disposed inside the chassis (200); The circuit board module (100) includes: Circuit board (110); A first connector (120) is connected to one end of the circuit board (110) in a snap-fit ​​manner along a first direction. The side of the first connector (120) facing away from the circuit board (110) is configured to snap-fit ​​with the inner wall of the chassis (200). The second connector (130) is connected to the other end of the circuit board (110) in a snap-fit ​​manner along the first direction. The side of the second connector (130) facing away from the circuit board (110) is configured to snap-fit ​​with the inner wall of the chassis (200). The first direction intersects with the thickness direction of the circuit board (110).

2. The circuit board module according to claim 1, characterized in that, At least one of the first connector (120) and the second connector (130) has a slot; In the first connector (120), the first connector (120) is connected to the circuit board (110) via the slot; In the second connector (130), the second connector (130) is connected to the circuit board (110) via the slot.

3. The circuit board module according to claim 2, characterized in that, The first connector (120) has a first slot (121) that extends along the first direction, and the first connector (120) and the circuit board (110) are connected through the first slot (121). The second connector (130) has a second slot (131) that extends along the first direction, and the second connector (130) and the circuit board (110) are connected through the second slot (131).

4. The circuit board module according to claim 3, characterized in that, At least one of the first card slot (121) and the second card slot (131) has a stop portion; The stop portion of the first card slot (121) stops at the end of the circuit board (110); The stop portion of the second slot (131) stops at the end of the circuit board (110).

5. The circuit board module according to claim 4, characterized in that, The first slot (121) has a first stop (1211). Along the first direction, the first stop (1211) is located on the side of the first slot (121) facing the circuit board (110) and stops at the end of the circuit board (110). The second slot (131) has a second stop (1311), which is located on the side of the second slot (131) facing the circuit board (110) along the first direction and stops at the end of the circuit board (110).

6. The circuit board module according to claim 5, characterized in that, The circuit board (110) has a notch (111) along the first direction, the notch (111) being located at the end of the circuit board (110) facing the second slot (131); the notch (111) and the second stop (1311) are matched in shape, and the second stop (1311) and the notch (111) are connected to stop the circuit board (110).

7. The circuit board module according to any one of claims 1-6, characterized in that, The circuit board (110) is provided with a plurality of snap-fit ​​parts. The first connector (120) is connected to the circuit board (110) through at least one of the snap-fit ​​parts, and the second connector (130) is connected to the circuit board (110) through at least one of the snap-fit ​​parts.

8. The circuit board module according to claim 7, characterized in that, The circuit board (110) is provided with a first snap-fit ​​portion, and the first connector (120) is provided with a first buckle (122). The first connector (120) and the circuit board (110) are connected through the first buckle (122) and the first snap-fit ​​portion. The circuit board (110) is provided with a second snap-fit ​​part, and the second connector (130) is provided with a second buckle (132). The second connector (130) and the circuit board (110) are snapped together by the second buckle (132) and the second snap-fit ​​part.

9. The circuit board module according to claim 8, characterized in that, The first snap-fit ​​portion includes a first snap-fit ​​hole (112), which penetrates the circuit board (110) along the thickness direction of the circuit board (110); along the first direction, the first buckle (122) snaps into the wall of the first snap-fit ​​hole (112). The second snap-fit ​​portion includes a second snap-fit ​​hole (113), which penetrates the circuit board (110) along the thickness direction; and the second buckle (132) snaps into the wall of the second snap-fit ​​hole (113) along the first direction.

10. The circuit board module according to claim 8, characterized in that, The first snap-fit ​​portion includes a first protruding extension (114), which protrudes from one side edge of the circuit board (110) along the second direction; the first buckle (122) and the first protruding extension (114) snap-fit ​​on the side away from the first connector (120) along the first direction. The second snap-fit ​​portion includes a second protruding extension (115), which protrudes from one side edge of the circuit board (110) along a second direction; and the second buckle (132) and the second protruding extension (115) snap-fit ​​on the side away from the second connector (130) along a first direction. The first direction, the second direction, and the thickness direction of the circuit board (110) are perpendicular to each other.

11. The circuit board module according to claim 10, characterized in that, Along the second direction, the first protruding extension (114) and the second protruding extension (115) are located on the same side of the circuit board (110).

12. The circuit board module according to any one of claims 1-6, characterized in that, Along the first direction, a third latching portion (123) is provided on the side of the first connector (120) opposite to the circuit board (110), and the third latching portion (123) extends along the second direction; a fourth latching portion (210) is provided on the chassis (200) opposite to the first connector (120), and the fourth latching portion (210) extends along the second direction; the third latching portion (123) is configured to latch with the fourth latching portion (210); The first direction, the second direction, and the thickness direction of the circuit board (110) are perpendicular to each other.

13. The circuit board module according to claim 12, characterized in that, Along the first direction, the second connector (130) is provided with a fifth snap-fit ​​portion on the side opposite to the circuit board (110), and the fifth snap-fit ​​portion extends along the second direction; a sixth snap-fit ​​portion is provided on the chassis (200) opposite to the second connector (130), and the sixth snap-fit ​​portion extends along the second direction; the fifth snap-fit ​​portion is configured to snap-fit ​​with the sixth snap-fit ​​portion.

14. The circuit board module according to claim 13, characterized in that, Along the first direction, a third latch (124) is provided on the side of the first connector (120) away from the circuit board (110); along the thickness direction of the circuit board (110), the third latch (124) is located on the side of the third latching portion (123) away from the circuit board (110); the third latch (124) is configured to latch with the wall of the chassis (200) along the first direction.

15. The circuit board module according to claim 14, characterized in that, Along the first direction, the second connector (130) is provided with a fourth buckle on the side opposite to the circuit board (110); along the thickness direction of the circuit board (110), the fourth buckle is located on the side opposite to the circuit board (110) of the fifth snap-fit ​​portion; the fourth buckle is configured to snap into the chassis wall of the chassis (200) along the first direction.

16. The circuit board module according to claim 13, characterized in that, The third latching portion (123) includes a first portion (1231) and a second portion (1232). Along the second direction, the first portion (1231) and the second portion (1232) are arranged sequentially, and along the thickness direction of the circuit board (110), the extension length of the first portion (1231) is less than the extension length of the second portion (1232). The shapes of the fourth latching portion (210) and the third latching portion (123) are matched. The fifth latching portion includes a third part and a fourth part, which are arranged sequentially along the second direction. Along the thickness direction of the circuit board (110), the extension length of the third part is less than the extension length of the fourth part. The sixth latching portion matches the shape of the fifth latching portion.

17. The circuit board module according to any one of claims 1-6, characterized in that, The chassis (200) is provided with a guide portion (220) that extends along a second direction; Along the thickness direction of the circuit board (110), a guide hole (116) is provided on one side of the circuit board (110); the guide hole (116) is configured to allow the guide portion (220) to pass through along the second direction; At least one of the guide portion (220) and the hole wall of the guide hole (116) has a guide slope (140).

18. The circuit board module according to any one of claims 1-6, characterized in that, The chassis (200) is equipped with a stop; Along the thickness direction of the circuit board (110), a connection terminal (117) is provided on one side of the circuit board (110). The connection terminal (117) is configured to connect electrical components. The side of the circuit board (110) opposite to the connection terminal (117) is configured to provide a stop for the stop member to stop.

19. The circuit board module according to claim 18, characterized in that, The stop component includes a stop hook (230), which is rotatably connected to the wall of the chassis (200); the stop hook (230) rotates relative to the wall of the chassis (200) to stop on the side of the circuit board (110) away from the connecting terminal (117) along the thickness direction of the circuit board (110).

20. The circuit board module according to claim 5, characterized in that, The opening of the first slot (121) faces the circuit board (110) so that the circuit board (110) enters the first slot along the first direction; The slot of the second card slot (131) faces the circuit board (110) so that the circuit board (110) enters the second card slot along the first direction.

21. The circuit board module according to claim 17, characterized in that, There are multiple guide portions (220) and guide holes (116). The multiple guide portions (220) are spaced apart along the first direction. The multiple guide holes (116) are arrayed on the circuit board (110). Each column of guide holes (116) corresponds to the same guide portion (220). Along the thickness direction of the circuit board (110), a connection terminal (117) is provided on one side of the circuit board (110). The connection terminal (117) and the guide holes (116) are located on opposite sides of the circuit board (110).

22. A server, characterized in that, include: A chassis (200) having a receiving cavity; A circuit board module (100), wherein the circuit board module (100) is the circuit board module (100) according to any one of claims 1-19, and the circuit board module (100) is disposed in the accommodating cavity.

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