PCIe card cooling system and server thereof

Abstract

The utility model discloses a PCIe card heat dissipation system which is installed in a server. The PCIe card heat dissipation system comprises two PCIe card devices, a frame device combined in the server, a fan fixing frame device arranged on the frame device and a fan device installed on the fan fixing frame device. Each PCIe card device comprises a PCIe card module and an extension board arranged on the PCIe card module. The frame device comprises two frame units corresponding to the PCIe card device and a connecting unit connected with the frame units. By means of the design that the extending plate of each PCIe card device is fixedly combined with the connecting plate of each frame unit, the connecting plate connected with the supporting frame and the corresponding extending plate are supported through the supporting frame of each frame unit, the effect of supporting the corresponding PCIe card device in an auxiliary mode is achieved, heat dissipation is directly conducted on the PCIe card devices through the fan unit, and the heat dissipation efficiency of the PCIe card devices is improved. And the overall heat dissipation efficiency is good.

Description

Technical Field

[0001] This utility model relates to a PCIe device, and more particularly to a PCIe card heat dissipation system and its server. Background Technology

[0002] In recent years, servers have frequently utilized PCIe (Peripheral Component Interconnect Express) cards, such as GPU cards or other PCIe interface expansion cards, to enable signal transmission between the motherboard and hardware devices or to perform other expansion functions. However, with the increasing demands for high-speed computing and high processing performance, the high integration and density of electronic components inside expansion cards increases their overall weight. Installing expansion cards requires further consideration of support mechanisms, and the high heat generated during operation cannot be effectively dissipated by the server's internal fans alone, leading to overheating issues. Therefore, how to effectively ensure proper heat dissipation for expansion cards is a question worthy of careful consideration and further exploration by industry professionals. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a PCIe card heat dissipation system with good applicability.

[0004] Therefore, the present invention relates to a PCIe card cooling system installed in a server. The server includes a rack. The rack has a base plate and two side plates extending upwards from two opposite sides of the base plate. The base plate and the side plates together define an accommodating space. The PCIe card cooling system is disposed in the accommodating space of the rack and includes two PCIe card devices, a frame assembly detachably attached to the server rack, a fan mounting bracket assembly disposed on the frame assembly, and a fan assembly mounted on the fan mounting bracket assembly. Each PCIe card device includes a PCIe card module and an extension plate disposed on the PCIe card module and extending away from the PCIe card module. The frame assembly includes two spaced-apart frame units corresponding to the PCIe card devices, and a connecting unit connecting the frame units. Each frame unit has a base frame disposed on the substrate, a support frame disposed on the base frame and adjacent to one of the side plates and extending from the base frame away from the base frame, and a connecting plate disposed on the support frame and extending from the support frame towards the extension plate of the corresponding PCIe card device. The connecting unit connects to the support frame of the frame unit. The support frames are respectively fixed to the adjacent side plates, thus fixing the entire frame assembly to the rack. The extension plate of each PCIe card device is disposed on and fixed to the corresponding connecting plate of the corresponding frame unit. The fan mounting bracket assembly includes two fan mounting brackets respectively disposed on the base frame of the frame unit. Each fan mounting bracket includes two spaced apart and fixed to the base frame, and two spaced apart and connected airflow plate units. The mounting plate units and airflow plate units of each fan mounting bracket cooperate to define a mounting space. One of the airflow plate units of each fan mounting bracket is adjacent to the support frame of the corresponding frame unit. The fan assembly includes two fan units, each mounted within the mounting space of the fan mount.

[0005] Specifically, each fan unit of the fan device has two fans installed in the mounting space of a corresponding fan mount. Each airflow plate unit of each fan mount of the fan mount device has a frame body and two airflow port modules that pass through the frame body and correspond to the fans respectively. Each frame unit of the frame device has a support frame with two openings. The airflow port modules of the airflow plate unit of each fan mount that are close to the support frame of the corresponding frame unit correspond to the openings of the support frame respectively.

[0006] In particular, each frame unit of the frame device also has a fixed arm disposed on the support frame and located between the support frame and the corresponding side plate, and a fastener passing through the fixed arm and detachably connecting the fixed arm to the corresponding side plate, the fastener fixing the fixed arm to the side plate of the frame and connecting the frame device to the frame.

[0007] Specifically, each fan of each fan unit includes two connecting plates located on two opposite sides, and a plurality of positioning members passing through the connecting plates. The frame of each airflow plate unit of each fan mounting bracket has a plurality of spaced-apart arcuate grooves corresponding to the positioning members of the fan, the arcuate grooves being used to support the positioning members.

[0008] Specifically, each positioning component of each fan has a positioning groove, the positioning groove of the positioning component corresponds to the arcuate groove of the frame of the airflow plate unit to which it is attached and can be respectively engaged in the corresponding arcuate groove. When the positioning groove of the positioning component of each fan is placed in the arcuate groove of the frame of the airflow plate unit to which it is attached, the positioning groove engages in the arcuate groove and causes the arcuate groove of the frame of the airflow plate unit to support and hold the positioning component.

[0009] Specifically, each frame unit of the frame device also has two locking fasteners. The connecting plate of each frame unit has two engagement holes into which the locking fasteners can be locked. The extension plate of each PCIe card device has two positioning holes corresponding to the engagement holes of the connecting plate. The locking fasteners of each frame unit pass through the positioning holes of the extension plate of the PCIe card device and lock into the engagement holes to fix the extension plate of the PCIe card device to the corresponding connecting plate.

[0010] Therefore, another objective of this invention is to provide a server with excellent applicability.

[0011] Therefore, the server of this utility model includes a rack and a PCIe card cooling system. The rack has a base plate and two side plates extending upward from two opposite sides of the base plate. The base plate and the side plates together define an accommodating space. The PCIe card cooling system is disposed in the accommodating space of the rack and includes two PCIe card devices, a frame assembly detachably attached to the rack of the server, a fan mounting bracket assembly disposed on the frame assembly, and a fan assembly mounted on the fan mounting bracket assembly. Each PCIe card device includes a PCIe card module and an extension plate disposed on the PCIe card module and extending away from the PCIe card module. The frame assembly includes two frame units spaced apart from each other and corresponding to the PCIe card devices, and a connecting unit connecting the frame units. Each frame unit has a base frame disposed on the substrate, a support frame disposed on the base frame and adjacent to one of the side plates and extending from the base frame away from the base frame, and a connecting plate disposed on the support frame and extending from the support frame towards the extension plate of the corresponding PCIe card device. The connecting unit connects to the support frame of the frame unit. The support frames are respectively fixed to the adjacent side plates, thus fixing the entire frame assembly to the rack. The extension plate of each PCIe card device is disposed on and fixed to the corresponding connecting plate of the corresponding frame unit. The fan mounting bracket assembly includes two fan mounting brackets respectively disposed on the base frame of the frame unit. Each fan mounting bracket includes two spaced apart and fixed to the base frame, and two spaced apart and connected airflow plate units. The mounting plate units and airflow plate units of each fan mounting bracket cooperate to define a mounting space. One of the airflow plate units of each fan mounting bracket is adjacent to the support frame of the corresponding frame unit. The fan device includes two fan units respectively installed in the mounting space of the fan mounting bracket. Each fan unit directs airflow through an airflow plate unit in each fan mounting bracket that is close to the corresponding support frame and through the corresponding PCIe card device.

[0012] Specifically, each fan unit of the fan device has two fans installed in the mounting space of a corresponding fan mount. Each airflow plate unit of each fan mount of the fan mount device has a frame body and two airflow port modules that pass through the frame body and correspond to the fans respectively. Each frame unit of the frame device has a support frame with two openings. The airflow port modules of the airflow plate unit of each fan mount that are close to the support frame of the corresponding frame unit correspond to the openings of the support frame respectively.

[0013] In particular, each frame unit of the frame device also has a fixed arm disposed on the support frame and located between the support frame and the corresponding side plate, and a fastener passing through the fixed arm and detachably connecting the fixed arm to the corresponding side plate, the fastener fixing the fixed arm to the side plate of the frame and connecting the frame device to the frame.

[0014] Specifically, each fan of each fan unit includes two connecting plates located on two opposite sides, and a plurality of positioning members passing through the connecting plates. The frame of each airflow plate unit of each fan mounting bracket has a plurality of spaced-apart arcuate grooves corresponding to the positioning members of the fan, the arcuate grooves being used to support the positioning members.

[0015] Compared with existing technologies, the PCIe card cooling system and server of this invention, through the design of the extension plate of each PCIe card device being fixedly connected to the connecting plate of each frame unit, can achieve the function of auxiliary support for the corresponding PCIe card device through the support frame of each frame unit supporting its connected connecting plate and corresponding extension plate, and achieve the function of the fan unit directly and independently cooling the PCIe card device, resulting in good overall heat dissipation efficiency. Furthermore, through the design of the connecting unit of the frame device connecting the support frame of the frame unit, the support frame is integrated into one unit, and the fan mounting bracket fixed on the base frame of the frame device and the fan unit are integrated into one unit structure, which facilitates the subsequent assembly operation of integrating the PCIe card cooling system into the rack. Attached Figure Description

[0016] Other features and effects of this utility model will be clearly presented in the embodiments with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is an exploded three-dimensional view illustrating an embodiment of the PCIe card heat dissipation system of this utility model installed in a server;

[0018] Figure 2 It is a 3D diagram, used for supplementary explanation. Figure 1 ;

[0019] Figure 3 It is a three-dimensional exploded view illustrating the connection between a frame device and a rack of the server in this embodiment;

[0020] Figure 4 This is a perspective view illustrating the connection relationship between a fan mounting bracket and the frame assembly in this embodiment; and

[0021] Figure 5 This is a partially enlarged exploded perspective view illustrating the connection relationship between a fan assembly and the fan mounting bracket assembly in this embodiment. Detailed Implementation

[0022] Before this utility model is described in detail, it should be noted that similar elements are represented by the same reference numerals in the following description.

[0023] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An embodiment of the PCIe card cooling system 1 of this utility model is installed in a server 90. The server 90 includes a rack 91. The rack 91 has a base plate 911 and two side plates 912 extending upward from two opposite sides of the base plate 911. The base plate 911 and the side plates 912 together define an accommodating space 913. The PCIe card cooling system 1 is disposed in the accommodating space 913 of the rack 91 and includes two PCIe card devices 2, a frame device 3 detachably coupled to the rack 91 of the server 90, a fan mounting bracket device 4 disposed on the frame device 3, and a fan device 5 mounted on the fan mounting bracket device 4.

[0024] Each PCIe card device 2 includes a PCIe card module 21 and an extension plate 22 disposed on the PCIe card module 21 and extending away from the PCIe card module 21.

[0025] The frame assembly 3 includes two spaced-apart frame units 31 corresponding to the PCIe card devices 2, and a connecting unit 38 connecting the frame units 31. Each frame unit 31 has a base frame 32 disposed on the substrate 911, a support frame 33 disposed on the base frame 32 near one of the side plates 912 and extending away from the base frame 32, and a connecting plate 34 disposed on the support frame 33 and extending towards the extension plate 22 of the corresponding PCIe card device 2. The connecting unit 38 connects to the support frame 33 of the frame unit 31. The support frame 33 is fixed to the adjacent side plate 912, thus fixing the entire frame assembly 3 to the rack 91. The extension plate 22 of each PCIe card device 2 is disposed on and fixed to the connecting plate 34 of the corresponding frame unit 31.

[0026] The fan mounting bracket 4 includes two fan mounting brackets 41 respectively disposed on the base frame 32 of the frame unit 31. Each fan mounting bracket 41 includes two spaced-apart mounting plate units 42 fixed to the base frame 32, and two spaced-apart airflow plate units 43 connected to the mounting plate units 42. The mounting plate units 42 and the airflow plate units 43 of each fan mounting bracket 41 cooperate to define a mounting space 44. One of the airflow plate units 43 of each fan mounting bracket 41 is close to the support frame 33 of the corresponding frame unit 31.

[0027] The fan assembly 5 includes two fan units 51 respectively installed in the mounting space 44 of the fan mounting bracket 41. Each fan unit 51 directs airflow through the airflow plate unit 43 in each fan mounting bracket 41 near the corresponding support frame 33 and through the corresponding PCIe card device 2.

[0028] During assembly, first, the support frame 33 of each frame unit 31 of the frame device 3 is as follows: Figure 3 The frame assembly 3 is fixed to the adjacent side plates 912 as shown, thus fixing the entire frame assembly 3 to the frame 91. It should be noted that, in this embodiment, each frame unit 31 of the frame assembly 3 further includes a fixing arm 35 disposed on the support frame 33 and located between the support frame 33 and the corresponding side plate 912, and a fixing member 36 passing through the fixing arm 35 and detachably connecting the fixing arm 35 to the corresponding side plate 912. The fixing member 36 fixes the fixing arm 35 to the side plate 912 of the frame 91, thus connecting the frame assembly 3 to the frame 91. Simply put, the support frame 33, through the fixing member 36, holds the fixing arm 35 in place as follows... Figure 3 It is fixed to the side plate 912 as shown, and the frame device 3 is fixed to the frame 91 as a whole, but not limited thereto.

[0029] Next, the extension board 22 of each PCIe card device 2 is as follows Figure 3 The connecting plate 34 of the corresponding frame unit 31 is shown and fixed to the corresponding connecting plate 34. Specifically, in this embodiment, each frame unit 31 of the frame device 3 also has two locking fasteners 37. The connecting plate 34 of each frame unit 31 has two engagement holes 341 into which the locking fasteners 37 can be engaged. The extension plate 22 of each PCIe card device 2 has two positioning holes 23 corresponding to the engagement holes 341 of the engaged connecting plate 34. The locking fasteners 37 of each frame unit 31 pass through the positioning holes 23 of the extension plate 22 of the engaged PCIe card and are engaged in the engagement holes 341 to fix the extension plate 22 of the engaged PCIe card device 2 to the corresponding connecting plate 34. In short, as long as the extension plate 22 of each PCIe card device 2 is... Figure 4The extension plate 22 of the PCIe card device 2 is placed on the connecting plate 34 of the combined frame unit 31, with the positioning hole 23 of each extension plate 22 aligned with the connecting hole 341 of the corresponding connecting plate 34. Then, the fastener 37 passes through the positioning hole 23 of the extension plate 22 of the combined PCIe card and locks into the connecting hole 341 to fix the extension plate 22 of the combined PCIe card device 2 to the corresponding connecting plate 34. At this time, the support frame 33 of the frame unit 31 supports the connecting plate 34 and the corresponding extension plate 22. Incidentally, in this embodiment, each PCIe card device 2 also includes a fixing part 24 disposed on the PCIe card module 21. The fixing part 24 of each PCIe card device 2 and the extension plate 22 are located at opposite ends of the corresponding PCIe card module 21, and each PCIe card device 2 is locked to the rack 91 through the fixing part 24 (not shown in the figure), but this is not a limitation. Additionally, in this embodiment, the PCIe card module 21 of each PCIe card device 2 is in the form of a GPU card, but this is not a limitation.

[0030] Next, the mounting plate unit 42 of the fan mounting bracket 41 of the fan mounting bracket device 4 is as follows: Figure 4 As shown, each fan mounting bracket 41 is fixed to the base frame 32, and one of its airflow plate units 43 is close to the support frame 33 of the corresponding frame unit 31. Finally, as long as the fan unit 51 of the fan device 5 is as shown... Figure 2 , Figure 5 The fan is fixedly installed in the mounting space 44 of the fan mounting bracket 41 as shown, thus completing the assembly operation. However, the assembly operation is not limited to the above steps.

[0031] Furthermore, in this embodiment, each fan unit 51 of the fan device 5 has two fans 52 installed in the mounting space 44 of the corresponding fan mounting bracket 41. Each airflow plate unit 43 of each fan mounting bracket 41 of the fan mounting bracket device 4 has a frame body 431 and two airflow port modules 433 that penetrate the frame body 431 and respectively correspond to the fans 52. The support frame 33 of each frame unit 31 of the frame device 3 has two openings 331 (see...). Figure 3 In each fan mount 41, the airflow port module 433 of the airflow plate unit 43 near the support frame 33 of the corresponding frame unit 31 corresponds to the opening 331 of the support frame 33. The fan 52 in the mounting space 44 of each fan mount 41 will flow through the airflow port module 433 of the airflow plate unit 43 near the corresponding support frame 33 in the corresponding fan mount 41 and flow through the corresponding PCIe card device 2 for heat dissipation. Simply put, the mounting space 44 defined by the mounting plate unit 42 and the airflow plate unit 43 of each fan mount 41 of the fan mount device 4 is as follows: Figure 1 The space shown can accommodate two fans 52, but is not limited to this; the installation space 44 can also be designed to accommodate one fan 52 or more than three fans 52, depending on actual needs. The airflow port module 433 of the airflow plate unit 43 near the support frame 33 of the corresponding frame unit 31 in each fan mounting bracket 41 is as follows: Figure 4 The airflow generated by the fan 52 within the mounting space 44 of each fan mount 41 flows through the airflow port module 433 of the airflow plate unit 43 near the corresponding support frame 33 in the corresponding fan mount 41, and through the opening 331 of the corresponding support frame 33 to the corresponding PCIe card device 2 for heat dissipation. However, this is not a limitation. Incidentally, in this embodiment, the fan 52 within the mounting space 44 of each fan mount 41 directs airflow towards the corresponding PCIe card device 2 for heat dissipation. However, this is not a limitation; it can also be designed according to the actual installation position requirements, where the fan 52 draws air from the corresponding PCIe card module 21 towards the opening 331 of the corresponding support frame 33, causing the airflow to flow through the entire corresponding PCIe card module 211 and into the opening 331 of the corresponding support frame 33 for heat dissipation.

[0032] By fixing the extension plate 22 of each PCIe card device 2 to the connecting plate 34 of each frame unit 31, the connecting plate 34 and the corresponding extension plate 22 can be supported by the support frame 33 of each frame unit 31, thereby achieving the function of assisting in supporting the corresponding PCIe card device 2, and enabling the fan unit 51 to directly dissipate heat from the PCIe card device 2, resulting in good overall heat dissipation efficiency. Furthermore, by connecting the support frame 33 of the frame unit 31 to the connecting unit 38 of the frame device 3, the support frame 33 is integrated into one unit, and the fan mounting bracket 41 fixed on the base frame 32 of the frame device 3 is integrated with the fan unit 51 into a single structure, which facilitates the subsequent assembly of the PCIe card cooling system 1 onto the rack 91.

[0033] Furthermore, it should be noted that in this embodiment, each fan 52 of each fan unit 51 includes two connecting plates 521 located on opposite sides, and a plurality of positioning members 522 penetrating the connecting plates 521. The frame body 431 of each airflow plate unit 43 of each fan mounting bracket 41 has a plurality of spaced-apart positioning members 522 corresponding to the fan 52, each used to receive the arcuate groove 432 of the positioning member 522. More specifically, in this embodiment, each positioning member 522 of each fan 52 has a positioning groove 523, the positioning groove 523 of the positioning member 522 corresponding to the arcuate groove 432 of the frame body 431 of the airflow plate unit 43 to which it is attached, and each can be engaged with the corresponding arcuate groove 432. When the positioning groove 523 of the positioning member 522 of each fan 52 is placed in the arcuate groove 432 of the frame 431 of the attached airflow plate unit 43, the positioning groove 523 engages with the arcuate groove 432, and the arcuate groove 432 of the frame 431 of the airflow plate unit 43 supports the positioning member 522. That is, each fan 52 is positioned securely on the frame 431 of the attached airflow plate unit 43 by means of the positioning groove 523 of the positioning member 522, but this is not a limitation. Furthermore, the positioning members 522 of the fan 52 are respectively coupled to the outer side of the corresponding connecting plate 521, and the positioning groove 523 of each positioning member 522 is designed to absorb vibration, effectively reducing the vibration generated during the operation of the fan 52. In this embodiment, each positioning member 522 of each fan 52 is in the form of a rivet, and each positioning member 522 of each fan 52 corresponds to the connecting plate 521 and each positioning member 522 is riveted to the outer side of the corresponding connecting plate 521, but this is not a limitation.

[0034] Additionally, the aforementioned PCIe card cooling system 1 can also be integrated into an embodiment of the server 90, meaning that an embodiment of the server 90 can be considered to include a rack 91 and a PCIe card cooling system 1. The rack 91 has a base plate 911 and two side plates 912 extending upwards from opposite sides of the base plate 911. The base plate 911 and the side plates 912 together define an accommodating space 913. The PCIe card cooling system 1 is disposed in the accommodating space 913 of the rack 91 and includes two PCIe card devices 2, a frame assembly 3 detachably attached to the rack 91 of the server 90, a fan mounting bracket 4 disposed on the frame assembly 3, and a fan assembly 5 mounted on the fan mounting bracket 4. The assembly method is the same as that of the PCIe card cooling system 1 described above, and will not be repeated here.

[0035] In summary, the PCIe card cooling system 1 and its server 90 of this utility model, through the design of the extension plate 22 of each PCIe card device 2 being fixedly connected to the connecting plate 34 of each frame unit 31, can achieve the effect of auxiliary support for the corresponding PCIe card device 2 by supporting the connecting plate 34 and the corresponding extension plate 22 through the support frame 33 of each frame unit 31, and thus achieve the effect of directly and independently cooling the PCIe card device 2, resulting in good overall cooling efficiency. Furthermore, through the design of the connecting unit 38 of the frame device 3 connecting the support frame 33 of the frame unit 31, the support frame 33 is integrated into one unit, and the fan mounting bracket 41 fixed on the base frame 32 of the frame device 3 is integrated with the fan unit 51 into a single structure, which facilitates the subsequent assembly operation of the PCIe card cooling system 1 on the rack 91.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A PCIe card cooling system, installed in a server, the server including a rack having a base plate and two side plates extending upward from two opposite sides of the base plate, the base plate and the side plates together defining an accommodating space, the PCIe card cooling system being disposed in the accommodating space of the rack, characterized in that, Include: Two PCIe card devices, each PCIe card device including a PCIe card module and an extension plate disposed on the PCIe card module and extending away from the PCIe card module. A frame assembly detachably attached to the server rack includes two frame units spaced apart from each other and corresponding to the PCIe card devices, and a connecting unit connecting the frame units. Each frame unit has a base frame disposed on the substrate, a support frame disposed on the base frame and adjacent to one of the side plates and extending from the base frame away from the base frame, and a connecting plate disposed on the support frame and extending from the support frame towards the extension plate of the corresponding PCIe card device. The connecting unit connects to the support frame of the frame unit. The support frame is fixed to the adjacent side plate and the frame assembly is fixed to the rack as a whole. The extension plate of each PCIe card device is disposed on the connecting plate of the corresponding frame unit and fixed to the corresponding connecting plate. A fan mounting bracket assembly disposed on the frame device includes two fan mounting brackets respectively disposed on the base frame of the frame unit. Each fan mounting bracket includes two spaced apart and fixed to the base frame, and two spaced apart and connected airflow plate units. The mounting plate units and airflow plate units of each fan mounting bracket cooperate to define an installation space. One airflow plate unit of each fan mounting bracket is close to the support frame of the corresponding frame unit. A fan assembly mounted on the fan mounting bracket includes two fan units respectively mounted in the mounting space of the fan mounting bracket.

2. The PCIe card heat dissipation system according to claim 1, characterized in that, Each fan unit of the fan device has two fans installed in the mounting space of a corresponding fan mounting bracket. Each airflow plate unit of each fan mounting bracket of the fan mounting bracket has a frame body and two airflow port modules that pass through the frame body and correspond to the fans respectively. Each frame unit of the frame device has a support frame with two openings. The airflow port modules of the airflow plate unit of each fan mounting bracket that are close to the support frame of the corresponding frame unit correspond to the openings of the support frame respectively.

3. The PCIe card heat dissipation system according to claim 1, characterized in that, Each frame unit of the frame device also has a fixed arm disposed on the support frame and located between the support frame and the corresponding side plate, and a fastener passing through the fixed arm and detachably connecting the fixed arm to the corresponding side plate, the fastener fixing the fixed arm to the side plate of the frame and connecting the frame device to the frame.

4. The PCIe card heat dissipation system according to claim 2, characterized in that, Each fan of each fan unit includes two connecting plates located on two opposite sides, and a plurality of positioning members passing through the connecting plates. The frame of each airflow plate unit of each fan mounting bracket has a plurality of spaced-apart arcuate grooves corresponding to the positioning members of the fan, the arcuate grooves being used to support the positioning members.

5. The PCIe card heat dissipation system according to claim 4, characterized in that, Each positioning component of each fan has a positioning groove, and the positioning groove of the positioning component corresponds to the arc groove of the frame of the airflow plate unit to which it is attached and can be respectively engaged in the corresponding arc groove. When the positioning groove of the positioning component of each fan is placed in the arc groove of the frame of the airflow plate unit to which it is attached, the positioning groove is engaged in the arc groove and the arc groove of the frame of the airflow plate unit supports and holds the positioning component.

6. The PCIe card heat dissipation system according to claim 4, characterized in that, Each frame unit of the frame device also has two locking fasteners. The connecting plate of each frame unit has two engagement holes into which the locking fasteners can be locked. The extension plate of each PCIe card device has two positioning holes corresponding to the engagement holes of the connecting plate. The locking fasteners of each frame unit pass through the positioning holes of the extension plate of the PCIe card device and lock into the engagement holes to fix the extension plate of the PCIe card device to the corresponding connecting plate.

7. A server, characterized in that, Include: A frame having a base plate and two side plates extending upward from two opposite sides of the base plate, the base plate and the side plates together defining an accommodating space; and A PCIe card cooling system disposed within the enclosure space of the rack, the PCIe card cooling system comprising, The two PCIe card devices each have a PCIe card module and an extension plate disposed on the PCIe card module and extending away from the PCIe card module. A frame assembly detachably attached to a server rack includes two spaced-apart frame units corresponding to the PCIe card devices, and a connecting unit connecting the frame units. Each frame unit has a base frame mounted on a substrate, a support frame mounted on the base frame near one of its side panels and extending away from the base frame, and a connecting plate mounted on the support frame and extending towards the extension plate of the corresponding PCIe card device. The connecting unit connects to the support frame of the frame unit. The support frame is fixed to the adjacent side panels, thus fixing the entire frame assembly to the rack. The extension plate of each PCIe card device is mounted on the connecting plate of the corresponding frame unit and fixed to the corresponding connecting plate. A fan mounting bracket assembly mounted on the frame device includes two fan mounting brackets respectively mounted on the base frame of the frame unit. Each fan mounting bracket includes two spaced-apart mounting plate units fixed to the base frame, and two spaced-apart airflow plate units connected to the mounting plate units. The mounting plate units and airflow plate units of each fan mounting bracket cooperate to define an installation space. One of the airflow plate units of each fan mounting bracket is close to the support frame of the corresponding frame unit. A fan assembly mounted on the fan mounting bracket includes two fan units respectively mounted in the mounting space of the fan mounting bracket.

8. The server according to claim 7, characterized in that, Each fan unit of the fan device has two fans installed in the mounting space of a corresponding fan mounting bracket. Each airflow plate unit of each fan mounting bracket of the fan mounting bracket has a frame body and two airflow port modules that pass through the frame body and correspond to the fans respectively. Each frame unit of the frame device has a support frame with two openings. The airflow port modules of the airflow plate unit of each fan mounting bracket that are close to the support frame of the corresponding frame unit correspond to the openings of the support frame respectively.

9. The server according to claim 7, characterized in that, Each frame unit of the frame device also has a fixed arm disposed on the support frame and located between the support frame and the corresponding side plate, and a fastener passing through the fixed arm and detachably connecting the fixed arm to the corresponding side plate, the fastener fixing the fixed arm to the side plate of the frame and connecting the frame device to the frame.

10. The server according to claim 8, characterized in that, Each fan of each fan unit includes two connecting plates located on two opposite sides, and a plurality of positioning members passing through the connecting plates. The frame of each airflow plate unit of each fan mounting bracket has a plurality of spaced-apart arcuate grooves corresponding to the positioning members of the fan, the arcuate grooves being used to support the positioning members.

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