An electronic device

Abstract

The application provides an electronic device, which comprises a shell, a circuit board and an extension module located in the shell. The circuit board is arranged on the bottom wall of the shell, and the extension module is connected with the side wall of the shell and is arranged in suspension above the bottom wall of the shell. Through the above arrangement mode, the extension module does not need to be in direct contact with the bottom wall of the shell, the circuit board can be extended below the extension module, the available space of the mainboard can be effectively increased, the rationality of the internal space layout of the electronic device is improved, the space utilization of the electronic device is effectively improved, and the miniaturization design requirement of the electronic device is met.

Description

Technical Field

[0001] This invention relates to the field of electronic technology, and more particularly to an electronic device. Background Technology

[0002] A server is a computer that manages computing resources and provides computing or application services to other client devices on a network, such as personal computers (PCs) and smartphones. Servers typically include PCIe (Peripheral Component Interconnect Express) modules, which can interface with expansion cards or adapter cards to expand the server's functionality.

[0003] Typically, a server consists of a chassis, with a motherboard mounted on the bottom wall of the chassis. PCIe modules are electrically connected to the motherboard to expand its functionality. Currently, most server PCIe modules are directly mounted on the bottom wall of the server chassis. This results in a significant space occupied by the PCIe modules on the bottom wall, reducing the available space for the motherboard on the bottom wall and hindering the miniaturization of the server design.

[0004] Therefore, how to reduce the space occupied by the PCIe module on the bottom wall of the server chassis and increase the space occupied by the motherboard has become an urgent problem to be solved. Summary of the Invention

[0005] This invention provides an electronic device to solve the problem that the PCIe module in existing servers occupies a large amount of space on the bottom wall of the casing, reducing the available space of the motherboard on the bottom wall of the casing and hindering the miniaturization design of the server.

[0006] This invention provides an electronic device, including a housing and a circuit board and an expansion module located within the housing;

[0007] The circuit board is disposed on the bottom wall of the housing, the expansion module is connected to the side wall of the housing, and the expansion module is suspended above the bottom wall of the housing.

[0008] With the above-described configuration, the expansion module does not need to directly contact the bottom wall of the housing. The circuit board can extend to the bottom of the expansion module, which can effectively increase the available space of the motherboard, improve the rationality of the internal space layout of the electronic device, thereby effectively improving the space utilization of the electronic device and meeting the miniaturization design requirements of the electronic device.

[0009] In one possible implementation, the expansion module includes a mounting bracket and an expansion card disposed on the mounting bracket;

[0010] One end of the mounting bracket has a latch, and the side wall of the housing has a connecting plate. The connecting plate has a slot that mates with the latch. The latch is engaged in the slot so that the mounting bracket is connected to the side wall of the housing through the engagement between the latch and the slot.

[0011] In one possible implementation, the latch includes a first latching portion and a second latching portion that are connected to each other and angled together;

[0012] The top of the card slot has a limiting part, the first locking part abuts against the limiting part, and the second locking part abuts against the side wall of the card slot near the mounting bracket.

[0013] In one possible implementation, the mounting bracket further includes a limiting element;

[0014] The connecting plate has a limiting plate at one end facing away from the mounting bracket. The limiting member presses against the side of the connecting plate facing away from the latch, and the end of the limiting member facing away from the mounting bracket abuts against the limiting plate.

[0015] In one possible implementation, the mounting bracket also includes a mounting plate at the end facing away from the latch.

[0016] The bottom wall of the housing has a support column, which is connected to the mounting plate. The support column supports the other end of the mounting frame through its cooperation with the mounting plate.

[0017] In one possible implementation, bolt fasteners are also included, and the mounting plate has through holes;

[0018] The support column includes a support part and a connecting part connected to each other, and the outer periphery of the connecting part has external threads.

[0019] The support portion abuts against the outer periphery of the through hole, and the connecting portion passes through the through hole and engages with the bolt fastener.

[0020] In one possible implementation, the mounting bracket has a groove, and the expansion card has a slide rail that mates with the groove;

[0021] The expansion card is slidably mounted on the mounting bracket through the cooperation between the slide rail and the slide groove.

[0022] In one possible implementation, the expansion card also has a limiting baffle, and the mounting bracket has a pressing structure;

[0023] When the expansion card is located on the mounting bracket, the limiting baffle abuts against the mounting bracket, and the pressing structure presses against the limiting baffle.

[0024] In one possible implementation, the clamping structure is rotatably mounted on the mounting bracket.

[0025] In one possible implementation, the electronic device is a server, and the expansion card is a wireless network card or a graphics card. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an electronic device from one perspective, provided as an embodiment of this application;

[0028] Figure 2 A side view of an electronic device provided in an embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the structure of an electronic device from another perspective, provided as an embodiment of this application;

[0030] Figure 4 for Figure 3 A magnified view of region A in the middle;

[0031] Figure 5 This is a schematic diagram of the structure of a connecting plate provided in an embodiment of this application;

[0032] Figure 6 This is a schematic diagram of the structure of a latch and a slot in accordance with an embodiment of this application.

[0033] Figure 7 This is a schematic diagram of the structure of a mounting bracket provided in an embodiment of this application;

[0034] Figure 8 This is a schematic diagram of the structure of a tail support provided in an embodiment of this application;

[0035] Figure 9 This is a schematic diagram of the first step of assembling an expansion card and a mounting bracket, provided in an embodiment of this application.

[0036] Figure 10 This is a schematic diagram of the second step of assembling an expansion card and a mounting bracket, provided in an embodiment of this application.

[0037] Figure 11 This is a schematic diagram of the third step of assembling an expansion card and mounting bracket, provided in an embodiment of this application.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100 - Electronic devices;

[0040] 110 - Casing;

[0041] 111-bottom wall;

[0042] 1111 - Supporting column;

[0043] 11111 - Support section;

[0044] 11112 - Connecting part;

[0045] 112-Sidewall;

[0046] 1121-Connecting plate;

[0047] 1122 - Card slot;

[0048] 1123 - Limiting part;

[0049] 1124 - Limit plate;

[0050] 120 - Extension Module;

[0051] 121 - Mounting bracket;

[0052] 1211-Latch;

[0053] 12111 - First connecting part;

[0054] 12112 - Second connecting part;

[0055] 1212 - Limiting component;

[0056] 1213 - Mounting plate;

[0057] 1214 - Slide groove;

[0058] 1215 - Press-fit structure;

[0059] 1216 - Support body;

[0060] 1217 - Tail support;

[0061] 122-Expansion Card;

[0062] 1221 - Slide rail;

[0063] 1222 - Limiting stop plate;

[0064] 123 - Bolt fasteners. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0066] As described in the background section above, currently, PCIe modules in servers are usually mounted directly on the bottom wall of the server casing. This results in a large space occupied by the PCIe modules on the bottom wall of the casing, reducing the space available for the server motherboard on the casing. When the motherboard size is large, the size of the server casing must be increased, which is not conducive to the miniaturization design of the server.

[0067] Furthermore, by mounting the PCIe module directly on the bottom wall of the housing, when the housing is subjected to external impacts, the impact force can easily be transmitted to the PCIe module, causing damage.

[0068] To address these issues, researchers devised an improvement to the PCIe module installation method. By connecting the PCIe module to the side wall of the housing and suspending it above the bottom wall, the space occupied by the PCIe module on the bottom wall was reduced, thereby effectively increasing the space available for the motherboard on the bottom wall of the housing and improving the internal space utilization of the server.

[0069] 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, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0070] Figure 1 This is a schematic diagram of the structure of an electronic device from one perspective, provided as an embodiment of this application. Figure 2 This is a side view of an electronic device provided in an embodiment of this application.

[0071] This application provides an electronic device, which may be a server or any other electronic device with a PCIe module.

[0072] See Figure 1 and Figure 2As shown, the electronic device 100 may include a housing 110, a circuit board (not shown) located within the housing 110, and an expansion module 120. The circuit board may be the motherboard of the electronic device 100, providing the logical computing basis for the operation of the electronic device 100. The expansion module 120 may be a module in the electronic device 100 used to expand its functions, for example, it may be a PCIe module, so that the electronic device 100 can realize more functions to meet user needs.

[0073] The circuit board can be mounted on the bottom wall 111 of the housing 110, and the expansion module 120 can be connected to the side wall 112 of the housing 110. Furthermore, the expansion module 120 can be suspended above the bottom wall 111 of the housing 110. For example, one end of the expansion module 120 can be connected to the side wall 112 of the housing 110 by means of snap-fit ​​or fastening, so that the expansion module 120 is in a cantilevered state.

[0074] With the above-described configuration, the expansion module 120 does not need to directly contact the bottom wall 111 of the housing 110. The circuit board can extend to the bottom of the expansion module 120, which can effectively increase the available space of the motherboard (i.e., the circuit board), improve the rationality of the internal space layout of the electronic device 100, thereby effectively improving the space utilization of the electronic device 100 and meeting the miniaturization design requirements of the electronic device 100.

[0075] Furthermore, by suspending the expansion module 120 on the bottom wall 111 of the housing 110, the direct impact on the expansion module 120 can be effectively reduced when the electronic device 100 is subjected to external impact, which helps to improve the protection of the expansion module 120.

[0076] Figure 3 This is a schematic diagram of the structure of an electronic device from another perspective, provided as an embodiment of this application. Figure 4 for Figure 3 A magnified view of region A in the middle.

[0077] See Figure 3 and Figure 4 As shown, the expansion module 120 may include a mounting bracket 121 and an expansion card 122 disposed on the mounting bracket 121. For example, the expansion card 122 may be a wireless network card, a graphics card, etc. The mounting bracket 121 can be connected to the side wall 112 of the housing 110, so that the expansion module 120 can be connected to the side wall 112 of the housing 110 through the mounting bracket 121. For example, see... Figure 4As shown, a latch 1211 can be provided at one end of the mounting bracket 121, and a connecting plate 1121 can be provided on the side wall 112 of the housing 110. A slot 1122 that mates with the latch 1211 can be provided on the connecting plate 1121. The latch 1211 can be locked in the slot 1122 so that the mounting bracket 121 can be connected to the side wall 112 of the housing 110 through the engagement between the latch 1211 and the slot 1122.

[0078] The snap-fit ​​connection is reliable, which helps improve the reliability and stability of the expansion module 120 setup. Furthermore, the snap-fit ​​connection facilitates installation and removal by operators, improving the efficiency of installation and removal of the expansion module 120.

[0079] In this embodiment, a mounting plate 1213 may also be provided at one end of the mounting bracket 121 facing away from the latch 1211 (see [link]). Figure 1 As shown, a support column 1111 can be provided on the bottom wall 111 of the housing 110. The support column 1111 can be connected to the mounting plate 1213, and the support column 1111 can support the other end of the mounting frame 121 through cooperation with the mounting plate 1213. In this way, the mounting frame 121 can be supported and fixed at both ends, which helps to improve the uniformity of the force on the mounting frame 121, and can effectively reduce or avoid the mounting frame 121 from flipping or tipping over, thereby effectively improving the reliability and stability of the expansion module 120.

[0080] See also Figure 1 As shown, the expansion module 120 may also include a bolt fastener 123, and a through hole (not shown) may be provided on the mounting plate 1213. The support column 1111 may include a support part 11111 and a connecting part 11112 connected to each other, wherein the outer periphery of the connecting part 11112 may be provided with external threads, the support part 11111 may abut against the outer periphery of the through hole, and the connecting part 11112 may pass through the through hole and cooperate with the bolt fastener 123.

[0081] For example, during installation, the latch 1211 and the slot 1122 can be engaged first, and then the mounting plate 1213 can be connected to the support column 1111. For instance, the latch 1211 can be inserted into the slot 1122 first, and then the expansion module 120 can be rotated to make the entire expansion module 120 horizontal, allowing the connecting part 11112 in the support column 1111 to pass through the through hole in the mounting plate 1213, and allowing the support part 11111 in the support column 1111 to support the mounting plate 1213. At this time, the bolt fastener 123 can be screwed onto the connecting part 11112 to connect the support column 1111 and the mounting plate 1213, thus completing the installation of the expansion module 120 on the housing 110.

[0082] The support portion 11111 can support the mounting bracket 121 through the outer periphery of the through hole, thereby improving the stability and reliability of the mounting bracket 121. The connection between the bolt fastener 123 and the connecting portion 11112 reduces or prevents the mounting bracket 121 from detaching from the support portion 11111, improving the firmness and reliability of the connection between the support portion 11111 and the mounting bracket 121, thus effectively enhancing the reliability and stability of the support portion 11111's support for the mounting bracket 121.

[0083] Among them, the bolt fastener 123 can be a hand-operated screw, which can be equipped with an operating handle to facilitate the operation of the bolt fastener 123 by the staff, thereby improving the ease of operation of the bolt fastener 123.

[0084] Figure 5 This is a schematic diagram of the structure of a connecting plate provided in an embodiment of this application. Figure 6 This is a schematic diagram of the structure of a latch and a slot provided in an embodiment of this application.

[0085] See Figure 5 and Figure 6 As shown, the latch 1211 may include a first latching portion 12111 and a second latching portion 12112 that are connected to each other and arranged at an angle. For example, the latch 1211 may be manufactured by a bending process, and the first latching portion 12111 and the second latching portion 12112 may be perpendicular to each other.

[0086] A limiting part 1123 can be provided at the top of the slot 1122. The first engaging part 12111 can abut against the limiting part 1123, and the second engaging part 12112 can abut against the side wall of the slot 1122 near the mounting bracket 121. The cooperation between the limiting part 1123 and the first engaging part 12111 can restrict the overall movement of the latch 1211 along the height direction of the mounting bracket 121 (i.e.,...). Figure 6The x-direction of the slot 1122 acts as a limit, effectively preventing the tongue 1211 from coming out of the slot 1122 in the x-direction.

[0087] The engagement between the second latching part 12112 and the side wall 112 of the slot 1122 allows the latching tongue 1211 to move along the length of the mounting bracket 121 (i.e., Figure 6 The latch (in the y-direction) acts as a limit, preventing the latch 1211 from dislodging from the slot 1122 in the y-direction. This effectively improves the reliability and stability of the fit between the latch 1211 and the slot 1122, and enhances the robustness and stability of the expansion module 120 mounted on the side wall 112 of the housing 110.

[0088] See also Figure 6 As shown, the mounting bracket 121 may further include a limiting member 1212. A limiting plate 1124 may also be provided at one end of the connecting plate 1121 facing away from the mounting bracket 121. The limiting member 1212 can press against the side of the connecting plate 1121 facing away from the latch 1211, and the end of the limiting member 1212 facing away from the mounting bracket 121 can abut against the limiting plate 1124. The cooperation between the limiting member 1212 and the connecting plate 1121 provides a clamping force between the latch 1211 and the slot 1122, helping to improve the firmness and reliability of the cooperation between the latch 1211 and the slot 1122, and further enhancing the stability of the expansion module 120 setup.

[0089] The mutual contact between the limiting member 1212 and the limiting plate 1124 allows the limiting plate 1124 to limit the limiting member 1212, preventing the mounting bracket 121 from moving and further improving the reliability and stability of the mounting bracket 121.

[0090] The mounting bracket 1211 can have two latches, which can be respectively positioned on both sides of the limiting member 1212. Correspondingly, two slots 1122 can be formed on the connecting plate 1121, and the two latches 1211 can be respectively engaged in the two slots 1122. This can effectively improve the firmness of the connection between the mounting bracket 121 and the connecting plate 1121, and enhance the reliability and stability of the mounting bracket 121.

[0091] Figure 7 This is a schematic diagram of the structure of a mounting bracket provided in an embodiment of this application. Figure 8 This is a schematic diagram of a tail support provided in an embodiment of this application.

[0092] See Figure 7 As shown, the mounting bracket 121 also has a slide groove 1214, and slide rails 1221 that mate with the slide groove 1214 can be provided at both ends of the expansion card 122 (see reference). Figure 10As shown, the expansion card 122 can be slidably mounted on the mounting bracket 121 through the cooperation between the slide rail 1221 and the slide groove 1214. For example, a connection port for electrical connection with the expansion card 122 can be provided inside the mounting bracket 121. The expansion card 122 can be inserted into the slide groove 1214 and dock with the connection port. The other end of the connection port can be electrically connected to the circuit board through a wire, so that the expansion card 122 can be electrically connected to the circuit board through the connection port and the wire, thereby realizing the functional expansion of the electronic device 100.

[0093] The connection between the expansion card 122 mounting bracket 121 is achieved through the cooperation of the slide groove 1214 and the slide rail 1221. The installation and disassembly are convenient and the connection is reliable. It can effectively improve the convenience of assembly between the expansion card 122 and the mounting bracket 121, making it easier for staff to install and replace the expansion card 122, and helping to improve the user experience.

[0094] See also Figure 7 As shown, the mounting bracket 121 may include a bracket body 1216 and a tail bracket 1217. The tail bracket 1217 may be located at one end of the bracket body 1216 facing away from the latch 1211, in conjunction with... Figure 8 As shown, the slide groove 1214 at one end of the mounting plate 1213 and the mounting bracket 121 can be set on the tail bracket 1217. The tail bracket 1217 can be detachably connected to the bracket body 1216. By adjusting the mounting position of the tail bracket 1217 on the bracket body 1216, the mounting space of the mounting bracket 121 can be changed, that is, the distance between the two slide grooves 1214 can be changed, so as to meet the installation requirements of expansion cards 122 of different sizes and specifications.

[0095] For example, when the expansion card 122 is small, the tail bracket 1217 can be positioned towards the end closer to the card tongue 1211 to reduce the distance between the two end slides 1214, thus accommodating the installation of the smaller expansion card 122. Conversely, when the expansion card 122 is large, the tail bracket 1217 can be positioned away from the card tongue 1211 to increase the distance between the two end slides 1214, thus accommodating the installation of the larger expansion card 122. This allows the mounting bracket 121 to meet the installation requirements of different sizes, thereby effectively improving the flexibility of the mounting bracket 121.

[0096] Figure 9 This is a schematic diagram of the first step in assembling an expansion card and a mounting bracket according to an embodiment of this application. Figure 10 This is a schematic diagram of the second step of assembling an expansion card and a mounting bracket, provided in an embodiment of this application. Figure 11 This is a schematic diagram of the third step of assembling an expansion card and mounting bracket, provided in an embodiment of this application.

[0097] See Figure 9 As shown, a limiting stop 1222 can be provided on the expansion card 122, and a pressing structure 1215 can be provided on the mounting bracket 121. When the expansion card 122 is located on the mounting bracket 121, the limiting stop 1222 can abut against the mounting bracket 121, and the pressing structure 1215 can press against the limiting stop 1222. The pressing structure 1215 can press the limiting stop 1222 tightly onto the mounting bracket 121, thereby fixing the expansion card 122 through the limiting stop 1222 to prevent the expansion card 122 from falling off the mounting bracket 121, thus effectively improving the reliability and stability of the expansion card 122 installation.

[0098] The clamping structure 1215 is rotatably mounted on the mounting bracket 121. For example, a mounting shaft can be provided on the mounting bracket 121, and a mounting hole can be provided on the clamping structure 1215. The mounting shaft can pass through the mounting hole and have a clearance fit with the mounting hole, so that the clamping structure 1215 can rotate around the mounting shaft. For example, see... Figure 9 As shown, before inserting the expansion card 122 into the mounting bracket 121, the clamping structure 1215 can be rotated to position it outside the mounting bracket 121. This prevents the clamping structure 1215 from interfering with the installation of the expansion card 122. Furthermore, the tail bracket 1217 can be detached from the bracket body 1216 to allow the expansion card 122 to be installed on the bracket body 1216. Figure 10 As shown, when the expansion card 122 is inserted into the mounting bracket 121, the limiting stop 1222 presses against the mounting bracket 121, indicating that the expansion card 122 has been inserted into the appropriate position. At this time, the tail bracket 1217 can be reinstalled onto the bracket body 1216, combined with... Figure 11 As shown, the clamping structure 1215 can be rotated so that it presses against the limiting baffle 1222, thereby fixing the limiting baffle 1222 so that the expansion card 122 can be securely and reliably installed in the mounting bracket 121.

[0099] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0100] In the description of this invention, it should be understood that the terms “comprising” and “having” as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0101] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electronic device, characterized in that, Includes a housing and a circuit board and expansion module located within the housing; The circuit board is disposed on the bottom wall of the housing, the expansion module is connected to the side wall of the housing, and the expansion module is suspended above the bottom wall of the housing. The expansion module includes a mounting bracket and an expansion card mounted on the mounting bracket; One end of the mounting bracket has a latch, and the side wall of the housing has a connecting plate. The connecting plate has a slot that mates with the latch. The latch is engaged in the slot so that the mounting bracket is connected to the side wall of the housing through the engagement between the latch and the slot. The mounting bracket is also provided with a mounting plate at the end facing away from the latch. The bottom wall of the housing has a support column, which is connected to the mounting plate. The support column supports the other end of the mounting frame through cooperation with the mounting plate.

2. The electronic device according to claim 1, characterized in that, The latch includes a first latching part and a second latching part that are connected to each other and set at an angle; The top of the slot has a limiting part, the first locking part abuts against the limiting part, and the second locking part abuts against the side wall of the slot near the mounting bracket.

3. The electronic device according to claim 2, characterized in that, The mounting bracket also includes a limiting component; The connecting plate has a limiting plate at one end facing away from the mounting bracket. The limiting member presses against the side of the connecting plate facing away from the latch, and the end of the limiting member facing away from the mounting bracket abuts against the limiting plate.

4. The electronic device according to claim 1, characterized in that, It also includes bolt fasteners, and the mounting plate has through holes; The support column includes a support part and a connecting part connected to each other, and the outer periphery of the connecting part has external threads. The support portion abuts against the outer periphery of the through hole, and the connecting portion passes through the through hole and engages with the bolt fastener.

5. The electronic device according to any one of claims 1 to 3, characterized in that, The mounting bracket has a sliding groove, and the expansion card has a sliding rail that mates with the sliding groove; The expansion card is slidably mounted on the mounting bracket through the cooperation between the slide rail and the slide groove.

6. The electronic device according to any one of claims 1 to 3, characterized in that, The expansion card also has a limiting baffle, and the mounting bracket has a pressing structure; When the expansion card is located on the mounting bracket, the limiting baffle abuts against the mounting bracket, and the pressing structure presses against the limiting baffle.

7. The electronic device according to claim 6, characterized in that, The clamping structure is rotatably mounted on the mounting bracket.

8. The electronic device according to claim 7, characterized in that, The electronic device is a server, and the expansion card is a wireless network card or a graphics card.

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