Fixing device and mounting method of PCIE card in chassis

Abstract

The embodiment of the application discloses a fixing device and mounting method for a PCIE card built in a case, the fixing device comprising a Riser module support, a buckle and a PCIE card connecting piece; the Riser module support comprising a card support bottom plate, and a first side limiting plate and a second side limiting plate arranged on two adjacent sides of the card support bottom plate; the second side limiting plate being provided with a guide structure at one end away from the first side limiting plate, the guide structure comprising a guide groove; the buckle being mounted in the guide groove, and the PCIE card connecting piece being at least partially arranged in the guide groove, the guide groove being provided with a first limiting protrusion, the buckle being provided with a buckle opening matched with the first limiting protrusion, and the buckle opening and the first limiting protrusion being in a matched state to limit and fix the area of the PCIE card connecting piece arranged in the guide groove. The application does not need to use screws or other connecting pieces for fixing, and can be mounted without tools, thus being convenient to mount, and can be unlocked only under the action of external force, and the structure is firm.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of PCIE fixing, more particularly to a fixing device and mounting method for a PCIE card built in a case. BACKGROUND

[0002] For some special use requirements, it is necessary to support more than two single PCIE card modules inside a 1U case, but due to the space limitation inside the 1U case, relevant holding structures cannot be designed, and the purpose of quick disassembly also needs to be achieved, however, the traditional fixing method cannot meet these special use requirements.

[0003] Therefore, it is necessary to design a fixing device for a PCIE card which can place more than two single PCIE card modules inside a 1U case while achieving the effect of quick disassembly. SUMMARY

[0004] The present application aims to overcome the deficiencies of the prior art and provide a fixing device and mounting method for a PCIE card built in a case.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] On the one hand, the fixing device for a PCIE card built in a case comprises a Riser module support, a buckle member and a PCIE card connecting member for fixing a PCIE card; the Riser module support comprises a card support bottom plate, and a first side limiting plate and a second side limiting plate arranged on adjacent two sides of the card support bottom plate; the first side limiting plate is used for limiting the first side of the PCIE card, and the second side limiting plate is used for limiting the second side of the PCIE card; one end of the second side limiting plate away from the first side limiting plate is provided with a guide structure, and the guide structure comprises a guide groove; the buckle member is installed in the guide groove, and the PCIE card connecting member is at least partially located in the guide groove; a first limiting protrusion is arranged on the guide groove, and the buckle member is provided with a buckle opening matched with the first limiting protrusion; when the buckle opening and the first limiting protrusion form a clamping position matching state, the buckle member limits and fixes the area of the PCIE card connecting member located in the guide groove.

[0007] Further technical solutions are that one side of the buckle member matched with the first limiting protrusion is provided with a groove, and an elastic arm is arranged on one side of the groove extending to the other side; the interval space between the elastic arm and the side wall of the other side of the groove constitutes the buckle opening.

[0008] Further, a first opening is arranged at the bottom of the guide slot, a first connecting plate is arranged between one side and the other side opposite to the one side of the first opening, and the part of the first connecting plate arched in the opposite direction of the bottom of the guide slot forms the first limiting protrusion.

[0009] Further, a second limiting protrusion matched with the bayonet catch is arranged on the guide slot.

[0010] Further, a second opening is arranged at the bottom of the guide slot, a second connecting plate is arranged between one side and the other side opposite to the one side of the second opening, and the part of the second connecting plate arched in the opposite direction of the bottom of the guide slot forms the second limiting protrusion.

[0011] Further, the top edges of the upper and lower sides of the guide slot are extended with limiting extension edges for limiting the height of the buckle member.

[0012] Further, the top edge of the rear side of the buckle member is extended with a stop extension edge matched with the limiting extension edge.

[0013] Further, the inner side of the first side limiting plate is fixedly connected with a Cable Riser card connector for the insertion of the PCIE card, when the PCIE card is connected with the Cable Riser card connector, the first side limiting plate corresponds to the length direction of the PCIE card, and the second side limiting plate corresponds to the width direction of the PCIE card.

[0014] Further, the adjacent positions of the first side limiting plate and the second side limiting plate are provided with an insertion opening, and the PCIE card connecting member is at least partially embedded in the insertion opening.

[0015] On the other hand, a PCIE card installation method comprises:

[0016] fixing the PCIE card on the PCIE card connecting member;

[0017] moving the buckle member to the position where the PCIE card connecting member can be installed on the Riser module support;

[0018] installing the PCIE card connecting member with the fixed PCIE card on the Riser module support, connecting the PCIE card to the Cable Riser card connector, and installing the corresponding part of the PCIE card connecting member into the insertion opening and the guide slot;

[0019] moving the buckle member again to form the bayonet catch matched with the first limiting protrusion, so as to limit and fix the PCIE card connecting member.

[0020] The beneficial effect of the present application compared with the prior art is that the fixing of the PCIE card is realized by the cooperation of the guiding structure and the buckle member, without the use of screws or other connecting members for fixing, reducing the occupation of the internal space of the case, allowing more PCIE cards to be placed, and without the use of tools for installation, convenient installation, and after the PCIE card is fixed, due to the elasticity of the elastic arm of the buckle member, only under the action of external force can it be unlocked, and the structure is firm.

[0021] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, it can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0023] Figure 1 The structural schematic diagram of the fixing device of the PCIE card built-in case according to the embodiment of the present application is shown in the figure.

[0024] Figure 2 The structural schematic diagram of the fixing device of the PCIE card built-in case according to the embodiment of the present application is shown in the figure.

[0025] Figure 3 The structural schematic diagram of the fixing device of the PCIE card built-in case according to the embodiment of the present application is shown in the figure.

[0026] Figure 4 The structural schematic diagram of the fixing device of the PCIE card built-in case according to the embodiment of the present application is shown in the figure.

[0027] Figure 5 The structural schematic diagram of the fixing device of the PCIE card built-in case according to the embodiment of the present application is shown in the figure.

[0028] Figure 6 The structural schematic diagram of the fixing device of the PCIE card built-in case according to the embodiment of the present application is shown in the figure.

[0029] Figure 7 The structural schematic diagram of the fixing device of the PCIE card built-in case according to the embodiment of the present application is shown in the figure. Figure 1 ;

[0030] Figure 8 PCIE card installation schematic provided for specific embodiments of the present application Figure 2 .

[0031] Reference signs

[0032] 1, Riser module support; 11, card support bottom plate; 12, first side limiting plate; 13, second side limiting plate; 14, insertion port; 15, case fixing matching structure; 2, buckle; 21, identification part; 22, elastic arm; 23, groove; 24, bayonet; 25, clamping position matching part; 26, step part; 27, stop extending edge; 28, foolproof groove; 3, guide structure; 31, guide groove; 32, first opening; 33, first connecting piece; 34, second opening; 35, second connecting piece; 36, limiting extending edge; 37, foolproof part; 4, Cable Riser card connector; 5, PCIE card connecting piece; 51, folded edge part; 511, opening; 52, embedded part; 100, PCIE card. DETAILED DESCRIPTION

[0033] The technical solutions of the present application will be described clearly and completely below in combination with specific embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] It should be understood that the terms "comprising" and "including" as used in the specification and claims indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0035] It should also be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0036] It should be further understood that the term "and / or" as used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations thereof, and includes these combinations.

[0037] This invention provides a mounting device for PCIe cards built into a computer chassis. This device is fixedly applied in a 1U chassis, allowing the chassis to accommodate as many PCIe cards as possible while enabling quick removal and removal. The invention is described below through specific embodiments.

[0038] like Figures 1-8 As shown, the chassis-integrated PCIe card fixing device includes a Riser module bracket 1, a clip 2, and a PCIe card connector 5 for fixing the PCIe card 100. The Riser module bracket 1 includes a card support base plate 11, and a first side limiting plate 12 and a second side limiting plate 13 disposed on adjacent sides of the card support base plate 11. The first side limiting plate 12 is used to limit the first side of the PCIe card 100, and the second side limiting plate 13 is used to limit the second side of the PCIe card 100. A guide structure 3 is provided at one end of the two side limiting plates 13 away from the first side limiting plate 12. The guide structure 3 includes a guide groove 31. The fastener 2 is installed in the guide groove 31. At least a part of the PCIE card connector 5 is located in the guide groove 31. A first limiting protrusion is provided on the guide groove 31. The fastener 2 is provided with a latch 2524 that engages with the first limiting protrusion. When the latch 2524 engages with the first limiting protrusion, the fastener 2 limits and fixes the area of ​​the PCIE card connector 5 located in the guide groove 31.

[0039] The PCIe card 100 is generally rectangular in shape. The PCIe card connector 5 is located on one side of the width direction of the PCIe card 100. The PCIe card 100 and the PCIe card connector 5 are connected by screws or other means. After the PCIe card 100 and the PCIe card connector 5 are connected, they are installed as a whole on the Riser module bracket 1.

[0040] The inner side of the first side limiting plate 12 is fixedly connected with a Cable Riser card connector 4 for inserting the PCIE card 100, adjacent positions of the first side limiting plate 12 and the second side limiting plate 13 are provided with an insertion opening 14, and the PCIE card connecting piece 5 is at least partially embedded in the insertion opening 14. The part of the PCIE card connecting piece 5 embedded in the insertion opening 14 is an embedded part 52. When the PCIE card 100 is connected with the PCIE card connecting piece 5 and placed on the Riser module support 1 as a whole, and the Cable Riser card connector 4 for inserting the PCIE card 100 and the embedded part 52 are embedded in the insertion opening 14, the first side limiting plate 12 of the Riser module support 1 corresponds to one side of the length of the PCIE card 100, and the second side limiting plate 13 corresponds to one side of the width of the PCIE card 100. Of course, the length of the first side limiting plate 12 is at least equal to or greater than the length of the PCIE card 100, and the length of the second side limiting plate 13 is at least equal to or greater than the width of the PCIE card 100. Due to the first side limiting plate 12 and the second side limiting plate 13, one side of the length of the PCIE card 100 and one side of the width of the PCIE card 100 can be limited, and the insertion opening 14 can limit the other side of the width of the PCIE card 100. The card support bottom plate 11 limits the bottom of the PCIE card 100. If the other side of the length of the PCIE card 100 needs to be limited, the position of the clamping piece 2 in the guide groove 31 is adjusted. When the first limiting protrusion of the guide groove 31 and the clamping opening 2524 of the clamping piece 2 form a clamping position matching state, the area of the PCIE card connecting piece 5 in the guide groove 31 will be limited and fixed, thereby indirectly limiting and fixing the other side of the length of the PCIE card 100.

[0041] The guide structure 3 is located at one end of the second side limiting plate 13 away from the first side limiting plate 12 and is in an everted state, as shown in Figure 1 The direction of the guide groove 31 of the guide structure 3 is perpendicular to the length direction of the second side limiting plate 13, which is equivalent to that the direction of the guide groove 31 of the guide structure 3 is parallel to the first side limiting plate 12. Such design of the guide structure 3 can avoid occupying the space in the width direction of the Riser module support 1, and also avoid occupying the space in the height direction of the Riser module support 1.

[0042] As shown in Figure 6 The part of the PCIE card connecting piece 5 in the guide groove 31 is a folded edge part 51. After the PCIE card 100 is connected with the PCIE card connecting piece 5 and placed on the Riser module support 1, the folded edge part 51 is in the guide groove 31. When the first limiting protrusion of the guide groove 31 and the clamping opening 2524 of the clamping piece 2 form a clamping position matching state, the folded edge part 51 will be limited and fixed, as shown inFigure 8 As shown, Figure 8 The first limiting protrusion is used to limit the folding part 51. In this state, only when the first limiting protrusion is removed from the clamping hole 2524 of the buckle 2 under the action of force, the PCIE card 100 and the PCIE card connecting piece 5 can be taken out from the riser module support 1.

[0043] In order to facilitate processing, the guide structure 3 and the second side limiting plate 13 are integrally processed. Of course, they can also be processed separately and connected by connecting pieces (screws or bolts, etc.) when used.

[0044] In an embodiment, as shown, Figure 5 The side of the buckle 2 matched with the first limiting protrusion is provided with a groove 23. The elastic arm 22 is provided on one side of the groove 23 extending to the other side. The interval space between the elastic arm 22 and the side wall of the other side of the groove 23 constitutes the clamping hole 2524.

[0045] The elastic arm 22 has a certain elasticity, so that the clamping cooperation is more firm and stable, and it is also beneficial to contact the clamping cooperation state under the action of force.

[0046] In some embodiments, as shown, Figure 2 The first opening 32 is provided at the bottom of the guide groove 31. The first connecting piece 33 is provided between one side of the first opening 32 and the other side opposite to it. The part of the first connecting piece 33 arched in the direction opposite to the bottom of the guide groove 31 constitutes the first limiting protrusion.

[0047] The width of the first limiting protrusion needs to adapt to the width of the clamping hole 2524. The surface of the first limiting protrusion needs to be provided with a smooth transition surface to ensure that the clamping cooperation state can be smoothly removed.

[0048] In an embodiment, as shown, Figure 2 , 6 The opening 511 for clamping the first connecting piece 33 is provided on the folding part 51. The length direction of the first connecting piece 33 is kept the same as the direction of the guide groove 31. When installed, the folding part 51 is located in the guide groove 31 at the same time, and the first connecting piece 33 is clamped into the opening 511, which can further limit the PCIE card connecting piece 5 and improve the limiting ability.

[0049] In some embodiments, as shown, Figure 2 The second limiting protrusion is further provided on the guide groove 31 matched with the clamping hole 2524. The second limiting protrusion is located behind the first limiting protrusion. The purpose of the second limiting protrusion matched with the clamping hole 2524 is to prevent the buckle 2 from directly sliding out from the back of the guide groove 31.

[0050] In some embodiments, as shown, Figure 2As shown, the bottom of the guide groove 31 is provided with a second opening 34, and a second connecting piece 35 is arranged between one side of the second opening 34 and the other side opposite to the one side, and the second connecting piece 35 is arched towards the bottom of the guide groove 31 to form a second limiting protrusion.

[0051] In the embodiment, the length direction of the second limiting protrusion is perpendicular to the length direction of the first limiting protrusion.

[0052] In some embodiments, as shown in the drawings, Figure 5 In order to facilitate the clamping cooperation of the second limiting protrusion, a step portion 26 is arranged at the free end of the elastic arm 22, and a clamping cooperation portion is designed on the side wall of the other side of the groove 23, and the clamping cooperation portion is arranged opposite to the elastic arm 22. In the clamping cooperation state, the second limiting protrusion is located at the position of the step portion 26, and the problem that the second limiting protrusion is not easy to slide out after being clamped into the bottom of the card slot 2524 can be avoided.

[0053] In an embodiment, as shown in the drawings, Figure 2 The top edges of the upper and lower two side surfaces of the guide groove 31 are extended to form limiting extension edges 36 for limiting the height direction of the buckle 2. The limiting extension edges 36 can prevent the buckle 2 from being separated from the opening area of the side of the guide groove.

[0054] In some embodiments, as shown in the drawings, Figure 2 , 5 The top edge of the rear surface of the buckle 2 is extended to form a stop extension edge 27 matched with the limiting extension edge 36. When the buckle 2 is slid in the guide groove 31 to the position where the stop extension edge 27 contacts the limiting extension edge 36, the limiting extension edge 36 can limit the buckle 2 to prevent the buckle 2 from being separated from the front of the guide groove 31.

[0055] In some embodiments, as shown in the drawings, Figure 4 The outer surface of the buckle 2 is provided with an identification portion 21, which indicates the sliding direction of the buckle 2, and is more intuitive in use.

[0056] In some embodiments, as shown in the drawings, Figure 2 , 5 The buckle 2 is provided with a foolproof groove 28, and the guide groove 31 is provided with a foolproof piece 37 matched with the foolproof groove 28. The cooperation of the foolproof groove 28 and the foolproof piece 37 has the effect of preventing mistakes during installation, and is more convenient to use. In addition, the cooperation of the foolproof groove 28 and the foolproof piece 37 also solves the problem that the buckle 2 is easy to shake when installed in the guide groove 31.

[0057] In the embodiment, the foolproof piece 37 is in the shape of a cylinder, and of course in other embodiments, it can be designed in other shapes, such as rectangular, triangular, etc., which are not limited in the application.

[0058] In an embodiment, as shown in Figure 3 In order to facilitate the installation of the fixing device in the case, a case fixing matching structure 15 is arranged at the center area and / or the edge of the back of the card support bottom plate 11, which is connected with the corresponding part in the case, or is connected and fixed by screws or other connecting members after being connected, so as to avoid loosening after the installation of the fixing device.

[0059] The embodiment of the application also provides a PCIE card installation method, which comprises the following steps:

[0060] S10, fixing the PCIE card 100 on the PCIE card connecting member 5;

[0061] S20, moving the clamping member 2 to a position where the PCIE card connecting member 5 can be installed on the Riser module support 1;

[0062] S30, installing the PCIE card connecting member 5 with the fixed PCIE card 100 on the Riser module support 1, connecting the PCIE card 100 to the Cable Riser card connector 4, and installing the corresponding part of the PCIE card connecting member 5 into the insertion port 14 and the guide slot 31;

[0063] S50, moving the clamping member 2 again to form the clamping position matching state of the clamping port 2524 and the first limiting protrusion, so as to limit and fix the PCIE card connecting member 5.

[0064] As shown in Figure 7 , 8 , Figure 7 The state that the second limiting protrusion in the guide slot 31 matches the clamping port 2524 of the clamping member 2 is shown, in which state, the PCIE card connecting member 5 and the PCIE card 100 can be installed on the Riser module support 1, and at this time, the clamping member 2 does not limit the PCIE card connecting member 5 and the PCIE card 100. Figure 8 The state that the first limiting protrusion in the guide slot 31 matches the clamping port 2524 of the clamping member 2 is shown, in which state, the clamping member 2 limits and fixes the PCIE card connecting member 5 and the PCIE card 100.

[0065] The method for releasing the limiting and fixing of the PCIE card connecting member 5 and the PCIE card 100 is that a force is applied to the clamping member 2 to the rear of the guide slot 31, so that the first limiting protrusion releases the limiting of the clamping port 2524, and when the clamping member 2 moves to no longer limit the folded edge part 51, the PCIE card 100 can be taken out from the Riser module support 1 together with the PCIE card connecting member 5 after being removed from the Cable Riser card connector 4.

[0066] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A fixing device for a PCIE card built in a case, characterized by, The application relates to a riser module support, a buckle and a PCIE card connecting piece for fixing a PCIE card, wherein the riser module support comprises a card supporting bottom plate, a first side limiting plate and a second side limiting plate arranged on two adjacent sides of the card supporting bottom plate; the first side limiting plate is used for limiting a first side of the PCIE card, the second side limiting plate is used for limiting a second side of the PCIE card, one end of the second side limiting plate away from the first side limiting plate is provided with a guide structure, and the guide structure comprises a guide groove; the buckle is arranged in the guide groove, and the PCIE card connecting piece is arranged at least partially in the guide groove; a first limiting protrusion is arranged on the guide groove; the buckle is provided with a buckle opening matched with the first limiting protrusion; when the buckle opening and the first limiting protrusion are matched, the buckle limits and fixes the area of the PCIE card connecting piece in the guide groove; one side of the buckle opening is provided with a recess, and the recess is provided with an elastic arm extending from one side to the other side; the interval between the elastic arm and the side wall of the other side of the recess forms the buckle opening; the bottom of the guide groove is provided with a first opening, and a first connecting piece is arranged between one side and the other side opposite to the one side of the first opening; and the part of the first connecting piece arched towards the opposite direction of the bottom of the guide groove forms the first limiting protrusion.

2. The fixing device of the chassis-embedded PCIE card according to claim 1, wherein, The guide groove is further provided with a second limiting protrusion matched with the buckle opening.

3. The fixing device of the chassis-embedded PCIE card according to claim 2, wherein, The bottom of the guide groove is provided with a second opening, and a second connecting piece is arranged between one side and the other side opposite to the one side of the second opening; and the part of the second connecting piece arched towards the opposite direction of the bottom of the guide groove forms the second limiting protrusion.

4. The chassis-in-box PCIE card fixing device according to claim 1, wherein, The top edges of the upper and lower sides of the guide groove are extended and provided with limiting extension edges for limiting the height direction of the buckle.

5. The fixing device of the chassis-embedded PCIE card according to claim 4, wherein, The top edge of the rear side of the buckle is extended and provided with a stop extension edge matched with the limiting extension edge.

6. The chassis-in-box PCIE card fixing device according to claim 1, wherein, The inner side of the first side limiting plate is fixedly connected with a cable riser card connector for PCIE card insertion; when the PCIE card is connected with the cable riser card connector, the first side limiting plate corresponds to the length direction of the PCIE card, and the second side limiting plate corresponds to the width direction of the PCIE card.

7. The chassis-in-box PCIE card fixing device according to claim 1, wherein, The adjacent positions of the first side limiting plate and the second side limiting plate are provided with an insertion opening, and the PCIE card connecting piece is embedded at least partially in the insertion opening.

8. A PCIE card mounting method of a fixing device of a chassis-embedded PCIE card according to any one of claims 1 to 7, characterized by, The application relates to a riser module support, a buckle and a PCIE card connecting piece for fixing a PCIE card, wherein the riser module support comprises a card supporting bottom plate, a first side limiting plate and a second side limiting plate arranged on two adjacent sides of the card supporting bottom plate; the first side limiting plate is used for limiting a first side of the PCIE card, the second side limiting plate is used for limiting a second side of the PCIE card, one end of the second side limiting plate away from the first side limiting plate is provided with a guide structure, and the guide structure comprises a guide groove; the buckle is arranged in the guide groove, and the PCIE card connecting piece is arranged at least partially in the guide groove; a first limiting protrusion is arranged on the guide groove; the buckle is provided with a buckle opening matched with the first limiting protrusion; when the buckle opening and the first limiting protrusion are matched, the buckle limits and fixes the area of the PCIE card connecting piece in the guide groove; one side of the buckle opening is provided with a recess, and the recess is provided with an elastic arm extending from one side to the other side; the interval between the elastic arm and the side wall of the other side of the recess forms the buckle opening; the bottom of the guide groove is provided with a first opening, and a first connecting piece is arranged between one side and the other side opposite to the one side of the first opening; and the part of the first connecting piece arched towards the opposite direction of the bottom of the guide groove forms the first limiting protrusion. The guide groove is further provided with a second limiting protrusion matched with the buckle opening. The bottom of the guide groove is provided with a second opening, and a second connecting piece is arranged between one side and the other side opposite to the one side of the second opening; and the part of the second connecting piece arched towards the opposite direction of the bottom of the guide groove forms the second limiting protrusion. The top edges of the upper and lower sides of the guide groove are extended and provided with limiting extension edges for limiting the height direction of the buckle. The top edge of the rear side of the buckle is extended and provided with a stop extension edge matched with the limiting extension edge. The inner side of the first side limiting plate is fixedly connected with a cable riser card connector for PCIE card insertion; when the PCIE card is connected with the cable riser card connector, the first side limiting plate corresponds to the length direction of the PCIE card, and the second side limiting plate corresponds to the width direction of the PCIE card. The adjacent positions of the first side limiting plate and the second side limiting plate are provided with an insertion opening, and the PCIE card connecting piece is embedded at least partially in the insertion opening. The application relates to a riser module support, a buckle and a PCIE card connecting piece for fixing a PCIE card, wherein the riser module support comprises a card supporting bottom plate, a first side limiting plate and a second side limiting plate arranged on two adjacent sides of the card supporting bottom plate; the first side limiting plate is used for limiting a first side of the PCIE card, the second side limiting plate is used for limiting a second side of the PCIE card, one end of the second side limiting plate away from the first side limiting plate is provided with a guide structure, and the guide structure comprises a guide groove; the buckle is arranged in the guide groove, and the PCIE card connecting piece is arranged at least partially in the guide groove; a first limiting protrusion is arranged on the guide groove; the buckle is provided with a buckle opening matched with the first limiting protrusion; when the buckle opening and the first limiting protrusion are matched, the buckle limits and fixes the area of the PCIE card connecting piece in the guide groove; one side of the buckle opening is provided with a recess, and the recess is provided with an elastic arm extending from one side to the other side; the interval between the elastic arm and the side wall of the other side of the recess forms the buckle opening; the bottom of the guide groove is provided with a first opening, and a first connecting piece is arranged between one side and the other side opposite to the one side of the first opening; and the part of the first connecting piece arched towards the opposite direction of the bottom of the guide groove forms the first limiting protrusion. The buckle is adjusted again to make the card hole and the first limiting protrusion form a clamping cooperation state, so as to limit and fix the PCIE card connector.

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