Fixing device, server expansion module and server

Abstract

The utility model relates to a fixing device, a server expansion module and a server, the fixing device comprises a base, a connector and a card pressing mechanism, the connector is arranged on the base and used for being matched with an expansion module of the server in an inserted mode, and the card pressing mechanism is rotatably connected to the base, has a pressing position and is in friction fit with the base; and the pressing part is used for pressing the expansion module on the connector at the pressing position. The base, the connector and the card pressing mechanism are arranged into a whole, the card pressing mechanism is rotatably connected to the base and has a damping effect in the rotating process, the operation hand feeling in the assembling process is improved, the card pressing mechanism is kept at the current rotating position without external force, and during assembling, the expansion module is inserted into the connector, so that the card pressing mechanism can be conveniently assembled. And then the pressing and clamping mechanism is rotated to the pressing position to complete assembling, tool operation is not needed in the assembling steps, the method and steps for simplifying the assembling operation are achieved, the assembling efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a fixing device, a server expansion module, and a server. Background Art

[0002] The server's expansion module needs to be secured to the server chassis via a base and connected to the server's motherboard via a connector. During installation, the connector must first be secured to the connector bracket, then the expansion module must be plugged into the connector and secured to the bracket. Finally, the expansion module and connector must be secured to the base. Assembly of the expansion module is cumbersome and requires tools, resulting in low assembly efficiency and high production costs. Utility Model Content

[0003] The embodiments of the present application provide a fixing device, a server expansion module, and a server, which simplify the methods and steps of assembly operations, improve assembly efficiency, and reduce production costs.

[0004] In order to achieve the above-mentioned object, according to a first aspect of the present application, a fixing device is provided, comprising:

[0005] base;

[0006] A connector is provided on the base and is used for plugging and mating with the expansion module of the server;

[0007] The pressing mechanism is rotatably connected to the base and has a pressing position. It is frictionally matched with the base and is used to press the expansion module onto the connector at the pressing position.

[0008] Optionally, the card pressing mechanism has an elastic arm, the base has a first surface, and the elastic arm is frictionally engaged with the first surface.

[0009] Optionally, the first surface is provided with a first positioning structure, and the elastic arm is provided with a matching structure, and the matching structure cooperates with the first positioning structure to position the card pressing mechanism in the pressing position.

[0010] Optionally, the elastic arm abuts against the first surface through a matching structure.

[0011] Optionally, the first positioning structure includes a groove formed on the first surface, and the matching structure includes a protrusion formed on the elastic arm.

[0012] Optionally, the surface of the convex portion is a spherical surface.

[0013] Optionally, the inner wall of the groove has a guide surface for guiding the protrusion to enter or leave the groove, and the guide surface includes an inclined surface and / or a step surface.

[0014] Optionally, the inner wall of the groove includes a bottom surface, a first inclined surface and a second inclined surface, the first inclined surface connects the bottom surface and the second inclined surface, and the second inclined surface is connected to the first surface; the inclination angle of the first inclined surface relative to the first surface is greater than the inclination angle of the second inclined surface relative to the first surface.

[0015] Optionally, the card pressing mechanism further has a release position, in which the card pressing mechanism is disengaged from the expansion module and clears a path for plugging and unplugging the expansion module;

[0016] The first surface is provided with a second positioning structure, and the matching structure matches with the second positioning structure to position the card pressing mechanism at the release position.

[0017] Optionally, the second positioning structure has the same structure as the first positioning structure.

[0018] Optionally, the pressing mechanism includes a base and a pressing member, the base is rotatably connected to the base, the pressing member is arranged on the base to press one end of the expansion module, and the pressing member includes an elastic arm.

[0019] Optionally, the base includes a central area and an edge area, the pressing member is arranged in the edge area, and the central area is raised relative to the edge area.

[0020] Optionally, the card pressing mechanism further includes a buffer component, which is arranged in the central area.

[0021] Optionally, the base includes a first side wall, a second side wall and a pivot connection member, the second side wall and the pivot connection member are respectively arranged at both ends of the first side wall, the connector is arranged on the second side wall, and the card pressing mechanism is connected to the pivot connection member.

[0022] Optionally, the base further includes a third side wall, the third side wall is connected to the second side wall, the third side wall is opposite to the first side wall and is spaced apart, and the pressing mechanism cooperates with the third side wall in the pressing position.

[0023] Optionally, the pivot connection member includes a first connection portion and a second connection portion, the first connection portion and the second connection portion are arranged opposite to each other, the base is rotatably connected between the first connection portion and the second connection portion, and the first surface is located at the first connection portion and / or the second connection portion.

[0024] Optionally, the first connecting portion and the second connecting portion respectively have a first surface, and the two first surfaces are located on opposite sides of the first connecting portion and the second connecting portion; the pressing mechanism is provided with two elastic arms, and the two elastic arms are respectively pressed against the two first surfaces.

[0025] Optionally, the base further includes a guide structure, and the first side wall and / or the third side wall are provided with a guide structure for guiding the expansion module to be plugged and mated with the connector.

[0026] According to a second aspect of the present application, a server extension module is provided, comprising:

[0027] expansion modules; and

[0028] The fixing device for the server expansion module according to any one of the first aspects.

[0029] According to a third aspect of the present application, a server is provided, comprising the server extension module in the first aspect.

[0030] In the fixing device of the embodiment of the present application, the base, the connector, and the pressing mechanism form an integral whole. The pressing mechanism is rotatably connected to the base and has a damping effect during the rotation process, which not only increases the operational feel during assembly, but also enables the pressing mechanism to remain in the current rotation position without external force. During assembly, the expansion module is inserted into the connector, and then the pressing mechanism is rotated to the clamping position to complete the assembly. No tools are required in the assembly steps, thereby realizing a method and steps for simplifying the assembly operation.

[0031] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0033] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0034] Figure 1 is a schematic structural diagram of an extension module provided in an exemplary embodiment of the present disclosure;

[0035] Figure 2 is a schematic diagram of inserting an expansion module into a connector during the assembly process of the expansion module and the fixing device provided in an exemplary embodiment of the present disclosure;

[0036] Figure 3 is a schematic diagram of rotating the pressing mechanism to a pressing position during the assembly of the expansion module and the fixing device provided in an exemplary embodiment of the present disclosure;

[0037] Figure 4 is an assembly state diagram of an expansion module and a fixing device provided in an exemplary embodiment of the present disclosure;

[0038] Figure 5 yes Figure 3 Enlarged view of part A;

[0039] Figure 6 yes Figure 4 Enlarged view of part B;

[0040] Figure 7 is a schematic structural diagram of a first surface provided in an exemplary embodiment of the present disclosure;

[0041] Figure 8 is an exploded schematic diagram of a fixing device provided in an exemplary embodiment of the present disclosure;

[0042] Figure 9 2 is an exploded schematic diagram of a card pressing mechanism provided in an exemplary embodiment of the present disclosure.

[0043] Figure 10 is an exploded schematic diagram of a server extension module provided in an exemplary embodiment of the present disclosure;

[0044] Figure 11 is an exploded schematic diagram of a server provided in an exemplary embodiment of the present disclosure;

[0045] Description of reference numerals:

[0046] 1000-Chassis,

[0047] 2000-Extension module, 2001-Extension module, 2002-Fixed device,

[0048] 1-base, 11-first side wall, 12-second side wall, 13-third side wall, 14-pivot connection, 141-first connection part, 142-second connection part, 143-rotating shaft, 15-first surface, 151-first positioning structure, 1511-bottom surface, 1512-first inclined surface, 1513-second inclined surface, 152-second positioning structure, 16-guide structure, 17-fourth side wall,

[0049] 2- Connectors,

[0050] 3-pressing mechanism, 31-base, 311-central area, 312-edge area, 313-sleeve, 314-bending portion, 315-locking piece, 32-pressing piece, 321-first part, 3211-limiting surface; 322-elastic arm, 3221-matching structure, 323-second part, 33-buffer piece. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0052] The expansion module of server is a kind of computer hardware or software, for expanding the function of system, to meet the different needs of user, when expansion module is hardware, can be fixed in the chassis of server by a base, and be connected to the mainboard of server by connector.For example, as a kind of example, for the expansion module of GPU server, using riser card as connector, and set a riser fixing bracket and a fixed base, during installation, first riser card is fixed to riser card fixing bracket by screw locking, then expansion module is connected with riser card and expansion module and riser card fixing bracket are fixed by screw locking, then put into fixed base and fix to form expansion module by screw locking, finally expansion module integral body is put into chassis and is fixed, make riser card be connected with pipeline or slot in chassis.Therefore, in the related art, the assembling step of expansion module generally needs 3 to 4 steps, and needs to be fixed by tool (such as screwdriver or automatic screw machine etc.), and operation is cumbersome, time-consuming and long, and assembly efficiency is low, and production cost is high.

[0053] In view of this, on one hand, the present application provides a fixing device for simplifying assembly operations and steps, improving assembly efficiency, and reducing production costs.

[0054] See also Figure 1 , Figure 1 A structural schematic diagram of a fixing device 2002 provided in an embodiment of the present application is shown. The fixing device 2002 includes a base 1, a connector 2 and a card pressing mechanism 3.

[0055] The base 1 is a component for connecting to a chassis 1000 of a server.

[0056] The connector 2 is a component used to plug and mate with the expansion module. The connector 2 is fixed on the base 1. For example, it can be fixed in advance by anchors such as screws, or fixed by bonding, welding, etc.

[0057] The pressing mechanism 3 is a component used to press the expansion module 2001 against the connector 2 and secure the expansion module 2001. The pressing mechanism 3 is rotatably connected to the base 1 and frictionally engages with the base 1. The pressing mechanism 3 has a pressing position and a release position. In the release position, the pressing mechanism 3 clears the insertion and removal path for the expansion module 2001. In the pressing position, the pressing mechanism 3 blocks the insertion and removal path for the expansion module 2001 and abuts the side of the expansion module 2001 facing away from the connector 2, thereby pressing and securing the expansion module 2001. Due to the frictional engagement between the pressing mechanism 3 and the base 1, the pressing mechanism 3 has a damping effect during rotation, which not only enhances the operational feel during assembly but also allows the pressing mechanism 3 to remain in its current rotational position in the absence of external force. For example, when inserting or removing the expansion module 2001, the pressing mechanism 3 remains in the release position without manual support, making operation more convenient.

[0058] When assembling the expansion module 2001 to the fixing device 2002 provided in the embodiment of the present application, confirm that the card pressing mechanism 3 is in the release position and then start assembling. Figure 2 、 Figure 3 and Figure 4 As shown, the expansion module 2001 can be first inserted into the connector 2, and then the pressing mechanism 3 is rotated to the pressing position to complete the assembly. In this way, the assembly can be completed by plugging the connector 2 and rotating the pressing mechanism 3, and no tools are required during the assembly steps.

[0059] There can be many ways of friction cooperation between the base 1 and the card pressing mechanism 3. For example, a gasket is set between the card pressing mechanism 3 and the base 1, so that the card pressing mechanism 3 rubs the gasket when rotating to generate damping; for example, a damping rod is set between the base 1 and the card pressing mechanism 3.

[0060] In some embodiments, as Figure 5 and Figure 6 As shown, the card pressing mechanism 3 has an elastic arm 322, and the base 1 has a first surface 15, with the elastic arm 322 frictionally engaging with the first surface 15. By providing the elastic arm 322 on the card pressing mechanism 3 and frictionally engaging with the first surface 15 of the base 1, friction damping is generated when the card pressing mechanism 3 rotates without adding any additional accessories. The elasticity of the elastic arm 322 also makes it less likely for the card pressing mechanism 3 to become stuck due to excessive friction, thereby ensuring the flexibility of the card pressing mechanism 3.

[0061] For example, Figure 5 and Figure 6As shown, the card pressing mechanism 3 rotates relative to the base 1 about the first axis. The first surface 15 of the base 1 is perpendicular to the extension direction of the first axis. The elastic arm 322 is a cantilever structure with one end fixed and the other end extending toward the base 1. The free end of the elastic arm 322 abuts the first surface 15. When the card pressing mechanism 3 rotates, the free end of the elastic arm 322 moves on the first surface 15, thereby generating friction and forming a damping effect.

[0062] It should be understood that the term "vertical" in the description of this application does not mean that it is required to be absolutely vertical. For example, "the first surface 15 is perpendicular to the extension direction of the first axis" does not require the first surface 15 to be absolutely perpendicular to the first axis. The first surface 15 can have a certain inclination angle relative to the first axis, as long as the elastic arm 322 can maintain contact with the first surface 15 during the rotation of the card pressing mechanism 3.

[0063] In some embodiments, the first surface 15 is provided with a first positioning structure 151, and the elastic arm 322 is provided with a mating structure 3221. The mating structure 3221 cooperates with the first positioning structure 151 to position the card pressing mechanism 3 in the clamping position. In addition to the positioning function, when the card pressing mechanism 3 is rotated until the mating structure 3221 mates with the first positioning structure 151, it also serves as a warning to the operator to avoid excessive rotation of the card pressing mechanism 3, which could cause damage to the expansion module 2001 due to excessive force.

[0064] In some embodiments, the elastic arm 322 abuts the first surface 15 via a mating structure 3221. Specifically, the mating structure 3221 is disposed on the side of the elastic arm 322 facing the first surface 15. The elastic arm 322 not only engages with the first positioning structure 151 via the mating structure 3221, but also abuts the first surface 15 via the mating structure 3221, thereby simplifying the structure of the elastic arm 322. Furthermore, since the entire elastic arm 322 does not contact the first surface 15, the friction generated is less likely to be excessive, thereby causing jamming. Furthermore, the dimension of the mating structure 3221 along the first axis can be adjusted to adjust the abutment force between the elastic arm 322 and the first surface 15, thereby adjusting the magnitude of the friction.

[0065] like Figure 5 and Figure 6 As shown, the mating structure 3221 includes a protrusion formed on the elastic arm 322, and the first positioning structure 151 includes a groove formed on the first surface 15. The elastic arm 322 abuts the first surface 15 via the protrusion. When the card pressing mechanism 3 rotates, the protrusion moves along an arc path on the first surface 15. When the card pressing mechanism 3 rotates to the pressing position, the protrusion is embedded in the groove to position the card pressing mechanism 3 in the pressing position.

[0066] In some embodiments, as Figure 7As shown, the surface of the protrusion is spherical, which is conducive to the protrusion being able to smoothly enter or leave the groove to avoid obstruction.

[0067] In some embodiments, the inner wall of the groove has a guide surface for guiding the protrusion into or out of the groove, and the guide surface includes an inclined surface and / or a stepped surface. That is, by providing an inclined surface, a stepped surface, or a combination of an inclined surface and a stepped surface on the inner wall of the groove as a guide surface, the protrusion can smoothly enter or exit the groove and avoid obstruction.

[0068] Please refer to Figure 7 In some embodiments, the inner wall of the groove includes a bottom surface 1511, a first inclined surface 1512, and a second inclined surface 1513. The first inclined surface 1512 connects the bottom surface 1511 and the second inclined surface 1513, and the second inclined surface 1513 is connected to the first surface 15. The inclination angle of the first inclined surface 1512 relative to the first surface 15 is greater than the inclination angle of the second inclined surface 1513 relative to the first surface 15.

[0069] It can be understood that the first slope 1512 and the second slope 1513 are connected to form a guide surface. The relatively flat second slope 1513 smoothly connects the first slope 1512 and the first surface 15, which is conducive to the protrusion entering or leaving the groove along the second slope 1513. At the same time, the relatively steep first slope 1512 has a certain limiting effect on the protrusion. The protrusion is better maintained within the limited range of the first slope 1512 in the absence of external force, and the protrusion can leave along the first slope 1512 under the action of external force.

[0070] In other embodiments, the elastic arm 322 may also abut against the first surface 15 without the mating structure 3221 (not shown in the figure). For example, the top surface of the elastic arm 322 abuts against the first surface 15, and the mating structure 3221 is provided on the side of the elastic arm 322, with a gap between the mating structure 3221 and the first surface 15. The first surface 15 is provided with a raised first positioning structure 151. The first positioning structure 151 has a hole opening toward the side of the elastic arm 322. The mating structure 3221 may be an elastic protrusion on the side of the elastic arm 322. When the pressing mechanism 3 rotates to the pressing position, the elastic protrusion enters the hole. It is understandable that the first positioning structure 151 may also be other structures, such as a clamping ring, a clamp, etc.

[0071] In some embodiments, the first surface 15 is provided with a second positioning structure 152. The mating structure 3221 cooperates with the second positioning structure 152 to position the card pressing mechanism 3 in the release position. In addition to its positioning function, when the card pressing mechanism 3 is rotated until the mating structure 3221 mates with the second positioning structure 152, it also serves as a warning to the operator, preventing damage to the card pressing mechanism 3 caused by excessive rotation. The structural configuration of the second positioning structure 152 can be similar to any embodiment of the first positioning structure 151 and will not be further described here.

[0072] There are various structures of the base 1 and the card pressing mechanism 3 , as long as the base 1 and the card pressing mechanism 3 can cooperate to press the expansion module 2001 .

[0073] In some embodiments, as Figure 8 As shown, the base 1 includes a first sidewall 11, a second sidewall 12, a third sidewall 13, and a pivoting connector 14. The second sidewall 12 and the pivoting connector 14 are respectively disposed at opposite ends of the first sidewall 11. The third sidewall 13 is connected to the second sidewall 12 and is spaced apart from and opposite the first sidewall 11. A connector 2 is disposed on the second sidewall 12, and a card pressing mechanism 3 is connected to the pivoting connector 14. The third sidewall 13 is spaced apart from the first sidewall 11 to form an opening for the entry and exit of the expansion module 2001. In the released position, the card pressing mechanism 3 opens the opening, allowing the expansion module 2001 to pass through the opening between the third sidewall 13 and the first sidewall 11 and be inserted into the connector 2. In the pressed position, the card pressing mechanism 3 closes the opening and abuts the expansion module 2001, thereby forming a closed position where the first sidewall 11, the second sidewall 12, the third sidewall 13, and the card pressing mechanism 3 cooperate to enclose the expansion module 2001.

[0074] Furthermore, in some embodiments, the base 1 further includes a fourth side wall 17, to which the first side wall 11, the second side wall 12, and the third side wall 13 are all connected. The fourth side wall 17 can serve as a component for supporting the expansion module 2001 to reduce the force exerted by the weight of the expansion module 2001 on the connector 2.

[0075] In some embodiments, the base 1 further includes a fifth sidewall (not shown), which is disposed opposite the fourth sidewall 17 and to which the first sidewall 11, the second sidewall 12, and the third sidewall 13 are connected. The fifth sidewall can serve as a covering component for the expansion module 2001 to better secure and protect the expansion module 2001.

[0076] In the embodiment provided herein, the first surface 15 can be provided on any of the first sidewall 11, the second sidewall 12, the third sidewall 13, the fourth sidewall 17, and the fifth sidewall. For example, the surface of the fourth sidewall 17 facing away from the expansion module 2001 serves as the first surface 15, and the elastic arm 322 extends to the bottom of the base 1 and abuts against the fourth sidewall 17.

[0077] In some embodiments, the first surface 15 is disposed on the pivot connection 14 .

[0078] Please refer to Figure 8 The pivoting connecting member 14 includes a first connecting portion 141 and a second connecting portion 142. The first connecting portion 141 and the second connecting portion 142 are arranged opposite to each other. The card pressing mechanism 3 is rotatably connected between the first connecting portion 141 and the second connecting portion 142. Figure 8 and Figure 9 As shown, the card pressing mechanism 3 is provided with a shaft sleeve 313, and the pivot connection member 14 further includes a rotating shaft 143, which is passed through the shaft sleeve 313, and the two ends of the rotating shaft 143 are fixedly connected to the first connecting part 141 and the second connecting part 142 respectively.

[0079] The first surface 15 is located on the first connecting portion 141 and / or the second connecting portion 142. That is, the first connecting portion 141 has the first surface 15, or the second connecting portion 142 has the first surface 15, or both the first connecting portion 141 and the second connecting portion 142 have the first surface 15. By providing the first surface 15 on the first connecting portion 141 and / or the second connecting portion 142, the length of the elastic arm 322 is shortened, and the overall structure is more compact.

[0080] In some embodiments, the first connection portion 141 and the second connection portion 142 each have a first surface 15 . Figure 5 As shown, the two first surfaces 15 are located on opposite sides of the first connecting portion 141 and the second connecting portion 142. Accordingly, the card pressing mechanism 3 is provided with two elastic arms 322, which respectively press against the two first surfaces 15. Consequently, the free ends of the elastic arms 322 are located between the first connecting portion 141 and the second connecting portion 142, eliminating the need for additional vertical (Z-direction) space and minimizing interference with external structures. Furthermore, the two elastic arms 322 simultaneously generate frictional damping at both ends, making the card pressing mechanism 3 more vertically stable and less prone to tilting, ensuring a stable and smooth rotation process.

[0081] In some embodiments, as Figure 8 As shown, the pressing mechanism 3 includes a base 31 and a pressing member 32 . The base 31 is rotatably connected to the base 1 . The pressing member 32 is provided on the base 31 to press one end of the expansion module 2001 .

[0082] The elastic arm 322 provided in the embodiment of the present application can be provided on the base 31 or on the pressing member 32. In some embodiments, the elastic arm 322 is configured as a part of the pressing member 32, so that the base 31 is used to achieve a rotatable connection with the base 1, and the pressing member 32 is used to achieve compression and friction fit.

[0083] Please refer to Figure 8 The base 31 is a plate-shaped structure, and the aforementioned sleeve 313 is arranged at one end of the base 31.

[0084] Combine Figure 8 and Figure 9As shown, the pressing member 32 includes a first portion 321 , which is fixed to the base 31 by screw anchoring or bonding. The side of the first portion 321 facing away from the base 31 is used to press the expansion module 2001 .

[0085] The elastic arm 322 is connected to an end surface of the first portion 321 at one vertical end and extends toward the shaft sleeve 313 .

[0086] In some embodiments, please refer to Figure 6 As shown, the first part 321 is provided with a notch on the end face in the vertical direction (Z direction), and a limiting surface 3211 facing the elastic arm 322 is formed at the notch. The notch serves to increase the elasticity of the elastic arm 322, and the limiting surface 3211 serves to limit excessive deformation of the elastic arm 322, thereby preventing the elastic arm 322 from being damaged by excessive force.

[0087] In some embodiments, the clamping member 32 further includes a second portion 323, which is connected to the first portion 321 in an L-shape to enhance the ability of the clamping member 32 to resist deformation. In some embodiments, reinforcing ribs are provided at the corner between the second portion 323 and the first portion 321 to further enhance the structural strength of the clamping member 32.

[0088] In some embodiments, please refer to Figure 9 The base 31 includes a central region 311 and an edge region 312. The edge region 312 surrounds the central region 311. The pressing member 32 is disposed in the edge region 312. The central region 311 protrudes relative to the edge region 312. The pressing mechanism 3 not only presses the end of the expansion module 2001 with the pressing member 32, but also presses the middle of the expansion module 2001 with the central region 311.

[0089] In some embodiments, the card pressing mechanism 3 further includes a buffer 33, which is disposed in the central area 311. Figure 8 As shown, the buffer 33 is a layered structure located within the edge of the central region 311. This protects the expansion module while also allowing for a certain degree of manufacturing tolerance for the expansion module 2001. The buffer 33 is made of a flexible material, such as rubber, polyethylene, polypropylene, polyurethane, or silicone.

[0090] The central region 311 includes a first end and a second end. The first end is relatively close to the clamping member 32. The buffer member 33 has a first spacing from the first end of the central region 311, and a second spacing from the second end of the central region 311, wherein the second spacing is greater than the first spacing. The first spacing provides a certain distance between the clamping member 32 and the buffer member 33, allowing for a certain manufacturing tolerance between the clamping member 32 and the buffer member 33 to prevent contact and compression. The second spacing allows the accommodated expansion module 2001 to be equipped with functional components or interfaces at corresponding locations in the second spacing, thereby preventing damage to the functional components or interfaces.

[0091] In some embodiments, as Figure 8 and Figure 9 As shown, the base 31 is configured to extend to the third side wall 13, and one end of the base 31 away from the sleeve 313 has a bent portion 314. Figure 5 As shown, when the card pressing mechanism 3 is in the pressing position, the bent portion 314 is located on the side of the third side wall 13 facing away from the first side wall 11, so as to be fixedly engaged with the third side wall 13. Optionally, a locking member 315 is provided on the bent portion 314, and a locking hole is provided on the third side wall 13. The locking member 315 is connected to the locking hole to lock the card pressing mechanism 3 in the card pressing position.

[0092] In some embodiments, as Figure 8 As shown, the base 1 further includes a guide structure 16, which is provided on the first side wall 11 and / or the third side wall 13 to guide the expansion module 2001 in mating with the connector 2. Specifically, the guide structure 16 is provided on the first side wall 11, or the third side wall 13, or both. After the expansion module 2001 enters between the first side wall 11 and the third side wall 13, the guide structure 16 defines a movement path for the expansion module 2001, thereby guiding the expansion module 2001 to be mated with the connector 2.

[0093] In other embodiments of the present application, the base 1 and the card pressing mechanism 3 may also have other structural forms.

[0094] For example, the base 1 includes a first side wall 11, a second side wall 12, and a pivoting connection 14. The second side wall 12 and the pivoting connection 14 are respectively disposed at both ends of the first side wall 11. The connector 2 is disposed on the second side wall 12, and the pressing mechanism 3 is connected to the pivoting connection 14. That is, the base 1 is L-shaped, and the pressing mechanism 3 cooperates with the second side wall 12 to press the expansion module 2001 when in the pressing position.

[0095] For another example, the base 1 includes a second side wall 12, and the card pressing mechanism 3 is constructed in an L shape, the connector 2 is arranged on the second side wall 12, the L-shaped card pressing mechanism 3 is rotatably connected to the second side wall 12, and the L-shaped card pressing mechanism 3 cooperates with the second side wall 12 to press the expansion module 2001 when in the clamping position.

[0096] According to the second aspect of this application, Figure 10 As shown, an expansion module 2000 is provided. The expansion module 2000 includes an expansion module 2001 and a fixing device 2002 provided in any of the previous embodiments.

[0097] According to the third aspect of this application, Figure 11 As shown, a server is provided, which includes the expansion module 2000 provided in the second aspect and a chassis 1000 for accommodating the expansion module 2000.

[0098] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0099] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0100] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0101] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A fixing device, characterized in that: include: base; A connector, provided on the base, for plugging and mating with an expansion module of the server; The pressing mechanism is rotatably connected to the base and has a pressing position. The pressing mechanism is frictionally matched with the base and is used to press the expansion module onto the connector at the pressing position.

2. The fixing device according to claim 1, characterized in that The card pressing mechanism has an elastic arm, the base has a first surface, and the elastic arm is frictionally engaged with the first surface.

3. The fixing device according to claim 2, characterized in that The first surface is provided with a first positioning structure, and the elastic arm is provided with a matching structure, and the matching structure cooperates with the first positioning structure to position the card pressing mechanism at the pressing position.

4. The fixing device according to claim 3, characterized in that The elastic arm abuts against the first surface through the matching structure.

5. The fixing device according to claim 3, characterized in that The first positioning structure includes a groove formed on the first surface, and the matching structure includes a protrusion formed on the elastic arm.

6. The fixing device according to claim 5, characterized in that The surface of the convex portion is a spherical surface.

7. The fixing device according to claim 5, characterized in that The inner wall of the groove has a guide surface for guiding the protrusion to enter or leave the groove, and the guide surface includes an inclined surface and / or a step surface.

8. The fixing device according to claim 5, characterized in that The inner wall of the groove includes a bottom surface, a first inclined surface and a second inclined surface, wherein the first inclined surface connects the bottom surface and the second inclined surface, and the second inclined surface is connected to the first surface; An inclination angle of the first inclined surface relative to the first surface is greater than an inclination angle of the second inclined surface relative to the first surface.

9. The fixing device according to any one of claims 3 to 8, characterized in that: The card pressing mechanism further has a release position, in which the card pressing mechanism is disengaged from the expansion module and clears the insertion and removal path of the expansion module; The first surface is provided with a second positioning structure, and the matching structure cooperates with the second positioning structure to position the card pressing mechanism at the releasing position.

10. The fixing device according to claim 9, characterized in that The second positioning structure has the same structure as the first positioning structure.

11. The fixing device according to claim 2, characterized in that The pressing mechanism includes a base and a pressing member. The base is rotatably connected to the base. The pressing member is arranged on the base to press one end of the expansion module. The pressing member includes the elastic arm.

12. The fixing device according to claim 11, characterized in that The base includes a central area and an edge area. The pressing member is arranged in the edge area. The central area is raised relative to the edge area.

13. The fixing device according to claim 12, characterized in that The card pressing mechanism further includes a buffer component, and the buffer component is arranged in the central area.

14. The fixing device according to claim 2, characterized in that The base includes a first side wall, a second side wall and a pivot connection member, the second side wall and the pivot connection member are respectively arranged at two ends of the first side wall, the connector is arranged on the second side wall, and the card pressing mechanism is connected to the pivot connection member.

15. The fixing device according to claim 14, characterized in that The base further includes a third side wall connected to the second side wall. The third side wall is opposite to the first side wall and spaced apart. The pressing mechanism cooperates with the third side wall in a pressing position.

16. The fixing device according to claim 14 or 15, characterized in that The pivot connection member includes a first connection part and a second connection part, the first connection part is arranged opposite to the second connection part, the card pressing mechanism is rotatably connected between the first connection part and the second connection part, and the first surface is located at the first connection part and / or the second connection part.

17. The fixing device according to claim 16, characterized in that The first connecting portion and the second connecting portion respectively have the first surface, and the two first surfaces are located on opposite sides of the first connecting portion and the second connecting portion; The card pressing mechanism is provided with two elastic arms, and the two elastic arms are pressed against the two first surfaces respectively.

18. The fixing device according to claim 15, characterized in that The base further includes a guide structure, and the guide structure is provided on the first side wall and / or the third side wall, so as to guide the expansion module to be plugged and matched with the connector.

19. A server expansion module, characterized in that: include: Extension modules; and The fixing device according to any one of claims 1 to 18.

20. A server, characterized in that: Including the server expansion module described in claim 19.

Images