Server

Abstract

The invention discloses a server, and relates to the technical field of servers, the server comprises a case, an installation space is formed in the case, and a first installation port and a second installation port are formed in the two ends of the case respectively; the accelerator module is inserted into the installation space from the first installation port, and the accelerator module comprises any one of a graphics processor module, a tensor processor module and a neural network processor module; the central processing unit module and the accelerator module are arranged in a stacked mode. The plug-in box module is inserted into the installation space from the second installation opening, a first heat dissipation cavity and a second heat dissipation cavity which are independent of each other are formed in the plug-in box module, a first fan assembly is arranged in the first heat dissipation cavity, a second fan assembly is arranged in the second heat dissipation cavity, and the first heat dissipation cavity communicates with the accelerator module through a first heat dissipation channel; and the second heat dissipation cavity is communicated with the central processing unit module through a second heat dissipation channel. And each module in the case can perform independent heat dissipation, so that the problem of unreasonable air distribution is solved, and the technical effect of efficient heat dissipation is achieved.

Description

Technical Field

[0001] This application relates to the technical field of servers, and particularly to servers. Background Art

[0002] With the rapid development of artificial intelligence technology, AI servers are increasingly widely used. During operation, AI servers generate a large amount of heat. If the heat cannot be dissipated in a timely and effective manner, the internal temperature of the server will be too high, which will affect the performance and stability of the server and may even damage the hardware devices of the server.

[0003] Currently, common heat dissipation methods for AI servers include air cooling and liquid cooling, etc. Although liquid cooling has a high heat dissipation efficiency, it has problems such as a complex system, high cost, and difficult maintenance. Air cooling is relatively simple in structure, low in cost, and easy to maintain. However, when facing high-power-density AI servers, the traditional air cooling method often fails to meet the heat dissipation requirements, and there are problems such as uneven heat dissipation and unreasonable air flow organization. Summary of the Invention

[0004] This application provides a server to at least solve the problem of unreasonable air flow organization when an AI server uses air cooling in related technologies.

[0005] This application provides a server, including: A chassis, which forms an installation space inside, and both ends of the chassis are open to form a first installation port and a second installation port respectively; An accelerator module, inserted into the installation space from the first installation port, and the accelerator module includes any one of a graphics processor module, a tensor processor module, and a neural network processor module; A central processing unit module, inserted into the installation space from the first installation port, and stacked with the accelerator module; A plug-in box module, inserted into the installation space from the second installation port, and independent first and second heat dissipation cavities are formed inside the plug-in box module. A first fan assembly is provided in the first heat dissipation cavity, and a second fan assembly is provided in the second heat dissipation cavity. The first heat dissipation cavity is communicated with the accelerator module through a first heat dissipation channel, and the second heat dissipation cavity is communicated with the central processing unit module through a second heat dissipation channel.

[0006] In some embodiments, the chassis module includes a chassis body and a backplane assembly. A first partition is provided inside the chassis body. The first partition divides the internal space of the chassis body into a first heat dissipation cavity and a second heat dissipation cavity. The first heat dissipation cavity faces the accelerator module, and the second heat dissipation cavity faces the central processing unit module. The backplane assembly is disposed on the front side of the chassis body and is correspondingly arranged with the first heat dissipation cavity and the second heat dissipation cavity. A first ventilation opening is provided at a position of the backplane assembly corresponding to the accelerator module. The first ventilation opening communicates the accelerator module and the first heat dissipation cavity to form an independent first heat dissipation channel. A second ventilation opening is provided at a position of the backplane assembly corresponding to the central processing unit module. The second ventilation opening communicates the central processing unit module and the second heat dissipation cavity to form an independent second heat dissipation channel.

[0007] In some embodiments, the backplane assembly includes a backplane body, a second partition, and a third partition. The first ventilation opening and the second ventilation opening are provided on the backplane body. There is a first gap between the front side surface of the backplane body and the accelerator module and the central processing unit module. There is a second gap between the rear side surface of the backplane body and the first partition. The front side surface of the backplane body extends forward to form the second partition. The second partition abuts against the joints of the accelerator module and the central processing unit module. The rear side surface of the backplane body extends backward to form the third partition. The third partition abuts against the first partition. The second partition and the third partition isolate the air output of the first fan assembly and the air output of the second fan assembly.

[0008] In some embodiments, the first fan assembly includes a plurality of first fans. The first heat dissipation cavity includes a plurality of first fan installation chambers. The plurality of first fans are correspondingly installed in the plurality of first fan installation chambers. The second fan assembly includes a plurality of second fans. The second heat dissipation cavity includes a plurality of second fan installation chambers. The plurality of second fans are correspondingly installed in the plurality of second fan installation chambers.

[0009] In some embodiments, the accelerator module includes a first box body and an accelerator module provided in the first box body. One of a first male connector and a first female connector is provided at the rear end of the first box body. The other of the first male connector and the first female connector is provided at the corresponding position of the chassis module. The first male connector and the first female connector can be correspondingly plugged.

[0010] In some embodiments, an avoidance opening is provided at the rear end of the first box body. A first connector bracket is provided at the avoidance opening. The first connector bracket is connected to the bottom wall of the first box body by fasteners. The male end of the first connector or the female end of the first connector is mounted on the first connector bracket.

[0011] In some embodiments, the lower end of the avoidance opening is flush with the bottom wall of the first box body. The lower surface of the first connector bracket is provided with a first hook and a limiting block. The limiting block is located in front of the first hook. A limiting groove cooperating with the limiting block is provided on the bottom wall of the first box body. The limiting block can move in the limiting groove in the front-back direction. The first connector bracket passes through the avoidance opening from back to front. When the first hook is in snap-fit connection with the bottom wall of the first box body, the limiting block abuts against the front side wall of the limiting groove.

[0012] In some embodiments, sliding blocks are arranged on the side wall of the accelerator module in the front-back direction. Rollers are provided at corresponding positions on the inner side wall of the chassis. The sliding blocks are located above the rollers and are in rolling cooperation with the rollers.

[0013] In some embodiments, a first handle assembly is provided at the front end of the side wall of the first box body. The first handle assembly includes a first handle body and a first locking member. The first handle body is rotatably connected to the first box body. The first locking member is connected between the first box body and the first handle body to lock the first handle body. And under the action of an external force, the first locking member is disengaged from the first handle body, and the first handle body is unlocked.

[0014] In some embodiments, the first handle body has a first connection end and a first cooperation end. The first connection end is rotatably connected to the side wall of the first box body. A first spring is connected between the first box body and the first handle body; The first locking member has a second connection end and a locking end. The second connection end is rotatably connected to the side wall of the first box body. A second spring is connected between the first box body and the first locking member, so that the locking end abuts against and locks the first cooperation end of the first handle body; When the locking force of the first locking member acting on the first handle body disappears, the first handle body rotates to the unlocked position under the elastic force of the first spring.

[0015] In some embodiments, an elastic stop is provided on the side wall of the first box body. The front end of the elastic stop is connected to the side wall of the first box body, and the rear end of the elastic stop forms a suspended second hook. A card interface is provided on the chassis. The second hook extends out of the first box body from the card interface and can be engaged with the front side of the card interface.

[0016] In some embodiments, one of a second male connector and a second female connector is provided at the rear end of the central processing unit module. The other of the second male connector and the second female connector is provided at the corresponding position of the chassis module. The second male connector and the second female connector can be correspondingly plugged.

[0017] In some embodiments, a second handle assembly is provided at the front end of the side wall of the central processing unit module. The second handle assembly includes a second handle body and a connecting member. The second handle body is rotatably connected to the side wall of the central processing unit module. The connecting member is connected to the second handle body and is used for fixedly connecting to the chassis.

[0018] In some embodiments, the second handle body and the central processing unit module are rotatably connected through a damper.

[0019] In some embodiments, the chassis module further includes a base. The base is located below the chassis body, and the front end of the base protrudes from the backplane assembly. A power supply assembly is provided inside the base. The power supply assembly has a first power supply connector and an external power supply connector. The first power supply connector extends out from the front end of the base. The external power supply connector is located at the rear end of the base. The external power supply connector is used to connect to an external power supply; A first terminal is provided on the power supply assembly. The first terminal passes through the base and is exposed above the base. The backplane assembly includes a power supply adapter board. A second power supply connector is provided at the lower end of the power supply adapter board. The second power supply connector is correspondingly plugged with the first terminal; A third power supply connector is provided on the front side of the power supply adapter board. A fourth power supply connector is provided on both the accelerator module and the central processing unit module. The fourth power supply connector is plugged with the corresponding third power supply connector to realize power supply to the accelerator module and the central processing unit module.

[0020] In some embodiments, it further includes a power supply module. The power supply module is inserted into the installation space from the first installation port. The power supply module is located below the accelerator module and the central processing unit module and is correspondingly arranged with the base. A fifth power supply connector is provided at the rear end of the power supply module; the front end of the power supply assembly has a first power supply connector, and the first power supply connector extends out from the front end of the base. The first power supply connector is correspondingly plugged into the fifth power supply connector.

[0021] In some embodiments, the power supply assembly includes a power supply board and a structural member. The power supply board is arranged on the front side of the structural member and is connected to the structural member. The first power supply connector is arranged at the front end of the power supply board, and the first wiring post is arranged on the upper surface of the power supply board; the external power supply connector is arranged at the rear end of the structural member, and the external power supply connector is electrically connected to the first power supply connector through a cable.

[0022] In some embodiments, a cable fixing structure is provided on the structural member, and the cable fixing structure is used to constrain the cable on the structural member.

[0023] In some embodiments, a fourth partition is further provided on the front side of the backplane body. The fourth partition is arranged at the bottom of the backplane body and abuts against the bottom surface of the lowermost central processing unit module or accelerator module.

[0024] In some embodiments, the number of accelerator modules is one or more, the number of central processing unit modules is one or more, and the accelerator modules are stacked above the central processing unit modules.

[0025] In some embodiments, the accelerator module is a graphics processing unit module, the number of graphics processing unit modules is 8, and each graphics processing unit module includes a graphics processing card, and the graphics processing card is plugged into the first box body. With this application, since the heat generated by the accelerator module and the central processing unit module during operation is different and their requirements for air volume are also different, in this application, a first heat dissipation cavity and a second heat dissipation cavity are provided in the chassis module. The first fan assembly and the second fan assembly are arranged according to the air volume required for heat dissipation of the accelerator module and the central processing unit module respectively. The first heat dissipation cavity is communicated with the accelerator module through a first heat dissipation channel, and the second heat dissipation cavity is communicated with the central processing unit module through a second heat dissipation channel, so as to ensure that the air output by the first fan assembly blows towards the accelerator module through the first heat dissipation cavity and the first heat dissipation channel, and the air output by the first fan assembly will not blow towards the central processing unit module. Similarly, the air output by the second fan assembly blows towards the central processing unit module through the second heat dissipation cavity and the second heat dissipation channel, and the air output by the second fan assembly will not blow towards the accelerator module. Furthermore, independent heat dissipation of each module in the chassis can be realized, the problem of unreasonable air flow organization is solved, the technical effect of efficient heat dissipation is achieved, and the problems of waste of air volume and insufficient heat dissipation effect will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 Structural schematic diagram of a server provided by an embodiment of the present application; Figure 2 Exploded view of a server provided by an embodiment of the present application; Figure 3 Structural schematic diagram of the chassis module provided by an embodiment of the present application; Figure 4 Exploded view of the chassis module provided by an embodiment of the present application; Figure 5 Structural schematic diagram of the backplane assembly provided by an embodiment of the present application; Figure 6 Rear view schematic diagram of the backplane assembly provided by an embodiment of the present application; Figure 7 Structural schematic diagram of the first box body provided by an embodiment of the present application; Figure 8 Structural schematic diagram of the first box body from another perspective provided by an embodiment of the present application; Figure 9 For Figure 8 Enlarged layout view of point B in Figure 10 Structural schematic diagram of the first box body from yet another perspective provided by an embodiment of the present application; Figure 11 Schematic diagram of the structure of the first handle assembly provided by the embodiment of the present application in the unlocked state; Figure 12 Axonometric view of the first box body provided by the embodiment of the present application; Figure 13 For Figure 12 Partial enlarged view of point A in Figure 14 Schematic diagram of the structure of the second box body provided by the embodiment of the present application; Figure 15 For Figure 14 Partial enlarged view of point C in Figure 16 Schematic diagram of the rear side structure of the second box body provided by the embodiment of the present application.

[0028] Among them, the above-mentioned drawings include the following reference numerals: 1, chassis; 2, graphics processor module; 21, first box body; 211, sliding block; 212, elastic stop member; 2121, second hook; 213, first connector female end; 214, first connector bracket; 2141, first hook; 2142, limiting block; 215, first handle assembly; 2151, mounting plate; 2152, first handle body; 2152a, first mating end; 2152b, first connection end; 2153, first locking member; 2153a, locking end; 2153b, second connection end; 2154, first spring; 2155, second spring; 3, central processor module; 31, second box body; 311, second connector female end; 312, second handle assembly; 3121, second handle body; 3122, connecting member; 3123, damper; 313, second connector bracket; 4, plug-in box module; 41, plug-in box body; 42, backplane body; 421, second partition; 422, fourth partition; 423, third partition; 43, base; 44, first fan assembly; 45, second fan assembly; 46, power supply assembly; 461, power supply board; 462, structural member; 4611, first power supply connector; 4612, first wiring post; 4621, external power supply connector; 4622, cable fixing structure; 47, power supply adapter board; 471, second power supply connector; 472, third power supply connector; 48, first connector male end; 49, second connector male end; 410, wire harness clip; 5, power supply module. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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 of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] It should be noted that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. The terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. The terms "parallel", "perpendicular", and "equal" include the described situations and situations similar to the described situations, and the range of the similar situations is within the acceptable deviation range, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurement being discussed and the errors related to the measurement of a specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximate parallel, where the acceptable deviation range of approximate parallel can be, for example, within 5° deviation; "perpendicular" includes absolute perpendicular and approximate perpendicular, where the acceptable deviation range of approximate perpendicular can also be, for example, within 5° deviation. "Equal" includes absolute equality and approximate equality, where the acceptable deviation range of approximate equality can be, for example, that the difference between the two equal ones is less than or equal to 5% of any one of them. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0031] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Due to the diverse requirements in the design and development of AI servers, there are varying degrees of differences in servers of each specification, resulting in the server chassis supporting more diverse configurations. Traditional AI servers mostly adopt the form of on-board GPUs (Graphics Processing Units), which have high requirements for heat dissipation and usually use liquid cooling. Although liquid cooling has high heat dissipation efficiency, it has problems such as complex systems, high costs, and difficult maintenance. To support the need for localization, subsequent AI servers in the form of plug-in GPUs emerged. Through the multi-node GPU form, more GPUs can be loaded and supported. Compared with the on-board GPU form, the plug-in GPU form of AI servers does not have such high heat dissipation requirements. Therefore, overall air cooling can be selected. Based on this, the embodiments of this application provide a server that is equipped with fans to dissipate heat in different areas of the chassis.

[0033] Specifically, as Figures 1 to 16 shown, the embodiments of this application provide a server, including: A chassis 1, an installation space is formed inside the chassis 1, and the front and rear ends of the chassis 1 are open to form a first installation port and a second installation port respectively. In some embodiments of this application, the chassis 1 as a whole adopts a design with a length of 900 mm and a height of 8U model (U = 44.45 mm industry standard), which can adapt to and be compatible with the depth requirements of most servers and meet diversified needs. The outer shell of the chassis 1 is set with inner and outer layers of sheet metal parts to ensure the reliability of the overall strength of the machine and prevent distortion. The positions for fixing the lifting handles are designed on the left and right sides of the chassis 1, and the lifting handles are designed to be detachable to meet the requirements of diverse scenarios. The inner wall of the chassis 1 is designed with a double-layer sheet metal reinforcement structure, and the reinforcement structure is an annular reinforcement plate. The reinforcement plate is connected to the inside of the chassis 1 to provide support for the installation of each module.

[0034] The server further includes an accelerator module, and the accelerator module is inserted into the installation space from the first installation port. The accelerator module includes any one of a graphics processing unit module 2 (GPU), a tensor processing unit module (TPU), and a neural network processing unit module (NPU).

[0035] The server further includes a central processing unit module 3, which is inserted into the installation space from the first installation port, and the central processing unit module 3 is stacked with the accelerator module. The widths and lengths of the central processing unit module 3 and the accelerator module are equal. When the accelerator module and the central processing unit module 3 are installed into the installation space in the chassis 1, the rear ends of the accelerator module and the central processing unit module 3 both just move to the reinforcement plate. Due to the shielding of the reinforcement plate, they cannot move backward any further, avoiding the over-positioning of the accelerator module and the central processing unit module 3. After the accelerator module and the central processing unit module 3 are in place, the front ends of the accelerator module and the central processing unit module 3 are just at the first installation port, ensuring the flatness of the overall structure.

[0036] Specifically, in some embodiments of the present application, the central processing unit module 3 is a CPU (Central Processing Unit) module.

[0037] It should be noted that the number of accelerator modules is one or more, and specifically may include one or more graphics processing unit modules 2, one or more tensor processing unit modules, one or more neural network processing unit modules, or a combination of graphics processing unit modules 2, tensor processing unit modules, and neural network processing unit modules. As Figure 1 and Figure 2 shown, in some embodiments of the present application, the server includes two graphics processing unit modules 2 and a central processing unit module 3, and the two central processing unit modules 3 are stacked above the central processing unit module 3.

[0038] The server further includes an insertion box module 4, which is inserted into the installation space from the second installation port. Independent first and second heat dissipation cavities are formed in the insertion box module 4. A first fan assembly 44 is provided in the first heat dissipation cavity, and a second fan assembly 45 is provided in the second heat dissipation cavity. The first heat dissipation cavity is communicated with the accelerator module through a first heat dissipation channel, and the second heat dissipation cavity is communicated with the central processing unit module 3 through a second heat dissipation channel. The first heat dissipation channel and the second heat dissipation channel can be independent pipes or channels with ventilation functions surrounded by some structural members.

[0039] Since the heat generated by the accelerator module and the central processing unit module 3 during operation is different and the requirements for air volume are also different, in this application, a first heat dissipation cavity and a second heat dissipation cavity are provided in the chassis module 4. The first fan assembly 44 and the second fan assembly 45 are arranged according to the air volume required for heat dissipation of the accelerator module and the central processing unit module 3. The first heat dissipation cavity is connected to the accelerator module through a first heat dissipation channel, and the second heat dissipation cavity is connected to the central processing unit module 3 through a second heat dissipation channel, so as to ensure that the air output of the first fan assembly 44 blows towards the accelerator module through the first heat dissipation cavity and the first heat dissipation channel, and the air output of the first fan assembly 44 will not blow towards the central processing unit module 3. Similarly, the air output of the second fan assembly 45 blows towards the central processing unit module 3 through the second heat dissipation cavity and the second heat dissipation channel, and the air output of the second fan assembly 45 will not blow towards the accelerator module. Furthermore, independent heat dissipation of each module in the chassis 1 can be realized, the problem of unreasonable air flow organization is solved, the technical effect of efficient heat dissipation is achieved, and the problems of waste of air volume and insufficient heat dissipation effect will not occur.

[0040] This application uses air-cooled heat dissipation, which has a simple structure, low cost and is easy to maintain. At the same time, through the planning of the heat dissipation path, the server of the embodiment of this application can independently dissipate heat for each module in the chassis 1 according to the heat dissipation needs of different modules, and the modules do not affect each other, meeting diverse requirements.

[0041] In some embodiments of this application, as Figures 3 to 4 shown, the chassis module 4 includes a chassis body 41 and a backplane assembly. Among them, the interior of the chassis body 41 has a heat dissipation cavity, and the front and rear ends of the heat dissipation cavity are open. A first partition is provided in the heat dissipation cavity, and the first partition divides the heat dissipation cavity into a first heat dissipation cavity and a second heat dissipation cavity arranged up and down. Among them, the front end of the first heat dissipation cavity is arranged towards the accelerator module, and the front end of the second heat dissipation cavity is arranged towards the central processing unit module 3. The backplane assembly is arranged on the front side of the chassis body 41 and is correspondingly arranged with the first heat dissipation cavity and the second heat dissipation cavity. A first ventilation opening is provided at a position of the backplane assembly corresponding to the accelerator module, and the first ventilation opening connects the accelerator module and the first heat dissipation cavity to form an independent first heat dissipation channel. A second ventilation opening is provided at a position of the backplane assembly corresponding to the central processing unit module 3, and the second ventilation opening connects the central processing unit module 3 and the second heat dissipation cavity to form an independent second heat dissipation channel.

[0042] As Figure 5 and Figure 6As shown in the figure, the backplane assembly includes a backplane body 42, a second partition 421, and a third partition 423. The outer contour of the backplane body 42 is adapted to the shape and size of the front side of the chassis body 41. The backplane body 42 is arranged on the front side of the chassis body 41 and corresponds to the first heat dissipation cavity and the second heat dissipation cavity. The second partition 421 is arranged on the front side of the backplane body 42 and abuts against the joint of the accelerator module and the central processing unit module 3. The third partition 423 is arranged on the rear side of the backplane body 42 and abuts against the first partition. A first ventilation opening is provided at a corresponding position of the backplane body 42 and the accelerator module. The first ventilation opening communicates the accelerator module and the first heat dissipation cavity to form an independent first heat dissipation channel. The first heat dissipation channel sequentially includes a third partition section, a first ventilation opening section, and a second partition section along the air flow direction. A second ventilation opening is provided at a corresponding position of the backplane body 42 and the central processing unit module 3. The second ventilation opening communicates the central processing unit module 3 and the second heat dissipation cavity to form an independent second heat dissipation channel. The second heat dissipation channel sequentially includes a third partition section, a second ventilation opening section, and a second partition section along the air flow direction. Through the arrangement of the second partition 421 and the third partition 423, the isolation of the air flow blown out by the first fan assembly 44 and the air flow blown out by the second fan assembly 45 is formed, and the heat dissipation air flow is reasonably planned.

[0043] In some embodiments of the present application, the backplane body 42 is a hollow rectangular frame structure. The second partition 421 is arranged on the front side surface of the backplane body 42 and protrudes from the front side surface of the backplane body 42. The third partition 423 is arranged on the rear side surface of the backplane body 42 and protrudes from the rear side surface of the backplane body 42. When the chassis module 4 is inserted into the installation space from the second installation opening, the outer side wall of the chassis module 4 fits against the inner side wall of the chassis 1. The second partition 421 and the third partition 423 are horizontally arranged and continuously arranged in the entire width direction of the backplane body 42.

[0044] In some embodiments of the present application, the first fan assembly 44 includes a plurality of first fans. The first heat dissipation cavity includes a plurality of first fan installation chambers. The plurality of first fans are correspondingly installed in the plurality of first fan installation chambers. The second fan assembly 45 includes a plurality of second fans. The second heat dissipation cavity includes a plurality of second fan installation chambers. The plurality of second fans are correspondingly installed in the plurality of second fan installation chambers.

[0045] Specifically, the first heat dissipation cavity is divided into multiple first fan installation chambers by a grid structure. The number and layout of the first fan installation chambers are related to the air volume required for the heat dissipation of the accelerator module and the model of the first fan. In some embodiments of the present application, an 80 fan is selected as the first fan, the accelerator module is two stacked graphics processing unit (GPU) modules 2, the number of the first fan installation chambers is 15, the grid structure divides the first heat dissipation cavity into 3 layers, each layer includes 5 first fan installation chambers, and 1 first fan is arranged in each first fan installation chamber. It can be understood that when a fan of other models is selected as the first fan and the number and type of the accelerator modules are different, the number and layout of the first fan installation chambers will also change.

[0046] Similarly, the second heat dissipation fan is divided into multiple second fan installation chambers by a grid structure. The number and layout of the second installation chambers are related to the heat required for the heat dissipation of the central processing unit (CPU) module 3 and the model of the second fan. In some embodiments of the present application, a 40 fan is selected as the second fan, the CPU module 3 has only one layer, the number of the second fan installation chambers is 9, the grid structure divides the second heat dissipation cavity into 9 second fan installation chambers along the width direction, and 1 second fan is arranged in each second fan installation chamber. It can be understood that when a fan of other models is selected as the second fan and the number of the CPU modules 3 is different, the number and layout of the second fan installation chambers will also change.

[0047] As Figures 7 to 13 shown, in some embodiments of the present application, the accelerator module includes a first box body 21 and an accelerator module arranged in the first box body 21. One of a first male connector 48 and a first female connector 213 is arranged at the rear end of the first box body 21, and the other of the first male connector 48 and the first female connector 213 is arranged at the corresponding position of the chassis module 4. The first male connector 48 is correspondingly plugged into the first female connector 213.

[0048] As Figure 7 shown, taking the accelerator module as the GPU module 2 as an example, the GPU module 2 includes a first box body 21 and a GPU module arranged in the first box body 21. In some embodiments of the present application, a first card slot (not shown in the figure) is arranged in the first box body 21, and the GPU module is inserted into the first card slot. Specifically, 8 first card slots are arranged in each first box body 21, the number of the GPU modules is 8, each GPU module includes a graphics processing card, and the 8 graphics processing cards are correspondingly inserted into the 8 first card slots one by one. The graphics processing card is a PCIe double-width card. Therefore, in the embodiments of the present application, the GPU module 2 has two layers, and 8 PCIe double-width cards are arranged in each layer of the GPU module 2. The server realizes an architecture that supports 16 PCIe double-width cards in a single machine.

[0049] In some embodiments of the present application, a female first connector 213 is provided at the rear end of the first box body 21, and a male first connector 48 is provided at the corresponding position of the chassis module 4. When assembling the server, first install the chassis module 4 into the installation space from the second installation opening, and then install the graphics processing unit module 2 into the installation space from the first installation opening. The male first connectors 48 are provided at the positions of the chassis module 4 corresponding to the two graphics processing unit modules 2. When installing the graphics processing unit module 2, when the graphics processing unit module 2 is installed in place, the female first connector 213 on the graphics processing unit module 2 can just be inserted into the corresponding male first connector 48 to realize data transmission between the graphics processing unit module 2 and the chassis module 4. It can be understood that the male first connector 48 can also be provided on the graphics processing unit module 2, and the female first connector 213 is provided at the corresponding position of the chassis module 4. That is to say, the positions of the male first connector 48 and the female first connector 213 can be interchanged.

[0050] As Figure 8 and Figure 9 described above, in some embodiments of the present application, an avoidance opening is provided at the rear end of the first box body 21, and a first connector bracket 214 is provided at the avoidance opening. The first connector bracket 214 is connected to the bottom wall of the first box body 21 through fasteners, and the male first connector 48 or the female first connector 213 is installed on the first connector bracket 214. Specifically, the lower end of the avoidance opening extends to the bottom wall of the first box body 21. The first connector bracket 214 is located inside the first box body 21, and the bottom surface of the first connector bracket 214 is attached to the inner surface of the bottom wall of the first box body 21. The first box body 21 is provided with a first fixing hole, and the corresponding position of the first connector bracket 214 is provided with a second fixing hole. The fasteners sequentially pass through the first fixing hole and the second fixing hole from bottom to top to fixedly connect the first connector bracket 214 and the first box body 21. When the female first connector 213 is provided on the first box body 21, the female first connector 213 is installed on the first connector bracket 214. The first connector bracket 214 is provided with an anti-fool installation groove, and the shape of the anti-fool installation groove is adapted to the outer contour of the female first connector 213. The female first connector 213 is correspondingly inserted into the anti-fool installation groove to realize the installation of the female first connector 213.

[0051] In some embodiments of the present application, three anti-fool installation grooves are arranged at intervals along the width direction of the first box body 21 on the first connector bracket 214, and three female first connectors 213 are correspondingly arranged in the three anti-fool installation grooves. Two avoidance openings are arranged on each first box body 21, and two first connector brackets 214 are correspondingly arranged in the two avoidance openings. The two avoidance openings are arranged at both ends of the rear end face of the first box body 21 along the width direction of the first box body 21. The number of the female first connectors 213 is related to the model of the graphics processing unit module 2. It can be understood that the number of the female first connectors 213 is not limited to 6 mentioned in the embodiments of the present application.

[0052] In some embodiments of the present application, a suspended first hook 2141 and a limiting block 2142 are arranged on the lower surface of the first connector bracket 214. The limiting block 2142 is located in front of the first hook 2141. A limiting groove for cooperating with the limiting block 2142 is arranged on the bottom wall of the first box body 21. The limiting block 2142 can move in the limiting groove along the front-back direction. The first connector bracket 214 passes through the avoidance opening from the rear to the front. When the first hook 2141 is in snap-fit connection with the bottom wall of the first box body 21, the limiting block 2142 abuts against the front side wall of the limiting groove.

[0053] Exemplarily, in some embodiments of the present application, the number of the first hooks 2141 is 4, and the 4 first hooks 2141 are arranged at intervals along the width direction of the first connector bracket 214. A snap-fit groove with an opening facing forward is formed between the first hook 2141 and the lower surface of the first connector bracket 214. The number of the limiting blocks 2142 is 6, and the 6 limiting blocks 2142 are arranged at intervals along the width direction of the first connector bracket 214. 6 limiting grooves are correspondingly arranged on the bottom wall of the first box body 21. The dimension of the limiting groove along the front-back direction is greater than the dimension of the limiting block 2142 along the front-back direction. The dimension of the limiting groove along the width direction (consistent with the width of the first box body 21) is equal to or slightly greater than the dimension of the limiting block 2142 along the width direction. Therefore, the limiting block 2142 can move in the limiting groove along the front-back direction. When installing the first connector bracket 214, the first connector bracket 214 is inserted into the avoidance opening from the rear end and moves forward from the rear to the front until the first hook 2141 is in snap-fit connection with the bottom wall of the first box body 21 and the limiting block 2142 abuts against the front side wall of the limiting groove. At this time, the first connector bracket 214 cannot move forward any further, and the first connector bracket 214 is in place. At this time, the second fixing hole just corresponds to the first fixing hole, and the first connector bracket 214 is fixed to the first box body 21 by using a fastener. In the embodiments of the present application, the snap-fit connection between the first hook 2141 and the bottom wall of the first box body 21 and the cooperation between the limiting block 2142 and the limiting groove are adopted to realize the pre-positioning of the first connector bracket 214, providing a basis for the subsequent fixing of the first connector bracket 214 to the first box body 21.

[0054] Such asFigures 10 to 12 As shown, in some embodiments of the present application, a sliding block 211 is arranged on the side wall of the accelerator module in the front-back direction, and a roller (not shown in the figure) is arranged at the corresponding position on the inner side wall of the chassis 1. The sliding block 211 is located above the roller and is in rolling cooperation with the roller. Taking the accelerator module as the graphics processing unit module 2 as an example, the graphics processing unit module 2 is relatively heavy. To ensure smooth pulling out and pushing in of the graphics processing unit module 2 during maintenance, the cooperation of the sliding block 211 and the roller is adopted, which reduces the friction force when the graphics processing unit module 2 is pulled out and pushed in, reduces the acting force when the graphics processing unit module 2 is pulled out and pushed in, and improves the smoothness of pulling out and pushing in of the graphics processing unit module 2.

[0055] As Figure 10 and Figure 11 As shown, in some embodiments of the present application, a first handle assembly 215 is provided at the front end of the side wall of the first box body 21. The first handle assembly 215 includes a mounting plate 2151, a first handle body 2152 and a first locking member 2153. The mounting plate 2151 is fixedly connected to the side wall of the first box body 21. The first handle body 2152 is rotatably connected to the mounting plate 2151. The first locking member 2153 is connected between the mounting plate 2151 and the first handle body 2152 to lock the first handle body 2152. And under the action of an external force, the first locking member 2153 is disengaged from the first handle body 2152, and the first handle body 2152 is unlocked. The first handle assembly 215 serves as the force application point when the accelerator module is pulled out and pushed in. That is, it is necessary to ensure that it can be unfolded when applying force and retracted when no force is required. Therefore, in some embodiments of the present application, the first handle body 2152 is rotatably connected to the mounting plate 2151. When the first box body 21 does not need to be pulled out and pushed in, the first handle body 2152 rotates to the side of the first box body 21 and does not protrude from the front end of the first box body 21. The first locking member 2153 locks the first handle body 2152 in this position to prevent the first locking member 2153 from rotating. When the first box body 21 needs to be pulled out and pushed in, first apply force to the first locking member 2153 to disengage the first locking member 2153 from the first handle body 2152. At this time, the first handle body 2152 is unlocked and can rotate freely. Rotate the first handle body 2152 forward so that the first handle body 2152 protrudes from the front end of the first box body 21. At this time, the first handle body 2152 can be used as the force application point when the first box body 21 is pulled out and pushed in, facilitating the user to pull out and push in.

[0056] Specifically, the first handle body 2152 has a first connection end 2152b and a first mating end 2152a. The first connection end 2152b is rotatably connected to the side wall of the first box body 21, so that the first handle body 2152 rotates between a locked position and an unlocked position. The first handle assembly 215 further includes a first spring 2154, and the first spring 2154 is connected between the first box body 21 and the first handle body 2152. When the first handle body 2152 is in the locked position, the first locking member 2153 locks and fixes the first handle body 2152. When the first locking member 2153 is disengaged from the first handle body 2152 under an external force, the first handle body 2152 rotates to the unlocked position under the elastic force of the first spring 2154 and remains in this position. Through an external force, the first handle body 2152 can overcome the elastic force of the first spring 2154 and return to the locked position. The first spring 2154 is a torsion spring. When the first handle is in the locked position, the first spring 2154 undergoes elastic deformation. When the force exerted by the first locking member 2153 on the first handle disappears, the first spring 2154 resets and drives the first handle body 2152 to rotate to the unlocked position.

[0057] The first locking member 2153 has a second connection end 2153b and a locking end 2153a. The second connection end 2153b is rotatably connected to the mounting plate 2151. The first handle assembly 215 further includes a second spring 2155, and the second spring 2155 is connected between the mounting plate 2151 and the first locking member 2153, so that the locking end 2153a abuts against and locks the first mating end 2152a of the first handle body 2152. The second spring 2155 is a torsion spring. In its natural state, the second spring 2155 positions the first locking member 2153 in the locked position, enabling it to abut against the first mating end 2152a of the first handle body 2152, thereby locking the first handle body 2152. Under an external force, the first locking member 2153 can rotate, and the body of the second spring 2155 undergoes elastic deformation. After the external force disappears, the second spring 2155 resets and drives the first locking member 2153 to rotate to the locked position.

[0058] Exemplarily, such as Figure 10 and 11As shown, in some embodiments of the present application, the first locking member 2153 is located above the first handle body 2152. The left end of the first locking member 2153 is the locking end 2153a, and the right end is the second connection end 2153b. The lower end of the first handle body 2152 is the first connection end 2152b, and the upper end is the first mating end 2152a. When in use, rotate the first handle body 2152 clockwise so that the first mating end 2152a abuts against the locking end 2153a. At this time, the first locking member 2153 locks the first handle body 2152. When unlocking is required, rotate the first locking member 2153 so that the locking end 2153a rotates upward and the locking end 2153a disengages from the first mating end 2152a. Under the action of the first spring 2154, the first handle body 2152 rotates counterclockwise, and the first handle body 2152 rotates out of the side wall of the first box body 21, facilitating the application of force during pulling.

[0059] The graphics processing unit module 2 is relatively heavy. During the extraction process, if the force is too strong, the graphics processing unit module 2 is very likely to be directly pulled out of the chassis 1, which has certain potential safety hazards.

[0060] As Figures 11 to 13 As shown, in some embodiments of the present application, an elastic stop member 212 is further provided on the side wall of the first box body 21. The elastic stop member 212 is arranged in the front-rear direction, and the front end of the elastic stop member 212 is connected to the side wall of the first box body 21. The rear end of the elastic stop member 212 forms a second hook 2121. A card interface (not shown in the figure) is provided on the chassis 1. The second hook 2121 extends out of the first box body 21 from the card interface and can be in snap-fit cooperation with the front side of the card interface. The elastic stop member 212 is made of a metal material and can produce a certain elastic deformation under an external force. There is a certain gap between the front end of the elastic stop member 212 and the side wall of the first box body 21. When the first box body 21 is pushed into the chassis 1, the elastic stop member 212 correspondingly extends out of the chassis 1 from the card interface. When the first box body 21 is pulled outwards, the elastic stop member 212 moves outwards with the first box body 21. Since the second hook 2121 is provided on the elastic stop member 212, during the pulling stroke of the first box body 21, the second hook 2121 will interfere with the front side of the card interface, and the first box body 21 cannot continue to move, avoiding the potential safety hazard of the first box body 21 being directly pulled out due to excessive external force. After the second hook 2121 interferes with the front side wall of the card interface, it is necessary to manually change the elastic stop member 212 so that the elastic stop member 212 retracts into the interior of the chassis 1, and the first box body 21 can continue to be pulled outwards.

[0061] As Figures 14 to 16As shown, in some embodiments of the present application, one of the male second connector 49 and the female second connector 311 is provided at the rear end of the central processing unit module 3, and the other of the male second connector 49 and the female second connector 311 is provided at the corresponding position of the chassis module 4. The male second connector 49 and the female second connector 311 can be correspondingly plugged. Specifically, the central processing unit module 3 includes a second housing 31 and a central processing unit module disposed within the second housing 31. The male second connector 49 or the female second connector 311 is disposed at the rear end of the second housing 31. In some embodiments of the present application, the female second connector 311 is disposed at the rear end of the second housing 31, and the male second connector 49 is disposed at the corresponding position of the chassis module 4. The male second connector 49 is correspondingly plugged with the female second connector 311. The female second connector 311 and the female first connector 213 can be the same. The connection manner between the female second connector 311 and the second housing 31 is the same as the connection manner between the female first connector 213 and the first housing 21. The female second connector 311 is mounted at the rear end of the second housing 31 through a second connector bracket 313. The specific structure will not be elaborated herein. During installation, the chassis module 4 is first installed into the installation space from the second installation opening. After the chassis module 4 is installed in place, the central processing unit module 3 is then installed. The central processing unit module 3 is pushed into the installation space from the first installation opening. When the central processing unit module 3 is installed in place, the female second connector 311 is exactly correspondingly plugged with the male second connector 49, realizing data transmission between the central processing unit module 3 and the chassis module 4.

[0062] Exemplarily, 6 female first connectors 213 are provided at the rear end of the graphics processing unit module 2. The number of the graphics processing unit modules 2 is two, and the two graphics processing unit modules 2 are stacked. 12 male first connectors 48 are correspondingly provided at the corresponding positions of the backplane body 42 and are respectively plugged with the female first connectors 213. The 12 male first connectors 48 are interconnected through cables. The cables are located at the rear side of the backplane body 42 and are constrained on the backplane body 42 through a wire harness clip 410. 4 female second connectors 311 are provided at the rear end of the central processing unit module 3. 4 male second connectors 49 are provided at the corresponding positions of the backplane body 42. The respective male second connectors are connected to each other, and the male second connector 49 is connected to the male first connector 48 through a cable to realize interconnection within the graphics processing unit module 2, interconnection within the central processing unit module 3, and interconnection between the graphics processing unit module 2 and the central processing unit module 3.

[0063] To facilitate the pushing and pulling of the central processing unit module 3, a second handle assembly 312 is provided at the front end of the side wall of the second box body 31. The second handle assembly 312 includes a second handle body 3121 and a connecting member 3122. The second handle body 3121 is rotatably connected to the side wall of the second box body 31, and the connecting member 3122 is connected to the second handle body 3121 for fixedly connecting to the chassis 1.

[0064] Specifically, as Figure 15 shown, in some embodiments of the present application, a damper 3123 is provided at the connection between the second handle body 3121 and the side wall of the second box body 31. By providing the damper 3123, the fixation of the second handle body 3121 can be achieved. That is to say, the second handle body 3121 can rotate and be fixed at this position, and only under the action of an external force can the second handle body 3121 overcome the acting force of the damper 3123 and continue to rotate. When it is necessary to push and pull the central processing unit module 3, manually rotate the second handle body 3121 to make the second handle body 3121 extend out of the front end of the second box body 31 and be fixed at this position. At this time, the second handle body 3121 can be used as the force application point when pushing and pulling the second box body 31. At the same time, the connecting member 3122 rotates out with the second handle body 3121. A fastener is provided at the position corresponding to the front end face of the chassis 1 on the connecting member 3122, and the connecting member 3122 can be fixedly connected to the front end face of the chassis 1, thereby realizing the fixation of the central processing unit module 3 and preventing the position of the central processing unit module 3 in the chassis 1 from changing.

[0065] In some embodiments of the present application, the connecting member 3122 is provided at one end of the second handle body 3121 away from the damper 3123, and when the second handle body 3121 rotates out of the front end of the second box body 31, the fastener on the connecting member 3122 is exactly opposite to the front end face of the chassis 1, and the fixed connection with the front end face of the chassis 1 can be realized.

[0066] In some embodiments of the present application, as Figure 3 and Figure 4As shown in the figure, the chassis module 4 further includes a base 43, which is provided below the chassis body 41, and the front end of the base 43 protrudes from the backplane assembly. A power supply component 46 is provided inside the base 43. The power supply component 46 has a first power supply connector 4611 and an external power supply connector 4621. The first power supply connector 4611 extends out from the front end of the base 43, and the external power supply connector 4621 is located at the rear end of the base 43. The external power supply connector 4621 is used to connect to an external power supply. Specifically, the width of the base 43 is equal to the width of the chassis module 4. The base 43 and the chassis body 41 can be integrally formed or separately provided. A power supply cavity that is open at both the front and rear ends is formed inside the base 43. The power supply component 46 is installed in the power supply cavity from the rear to the front. The first power supply connector 4611 of the power supply component 46 is exposed from the front end of the power supply cavity to be plugged and supplied with power to other electrical connectors 3122, and the external power supply connector 4621 is exposed from the rear end of the power supply cavity to facilitate plugging and supplying power to an external power supply.

[0067] Further, a first wiring terminal 4612 is provided on the power supply component 46. The first wiring terminal 4612 corresponds to the part of the base 43 that protrudes from the front end of the chassis body 41. The upper side wall of the part of the base 43 that protrudes from the front end of the chassis body 41 is a hollow structure, and the first wiring connection can correspondingly pass through the base 43 and be exposed above the base 43. The backplane body 42 further includes a power supply adapter board 47. The power supply adapter board 47 is installed on the backplane body 42, and a second power supply connector 471 is provided at the lower end of the power supply adapter board 47. The second power supply connector 471 is correspondingly plugged into the first wiring terminal 4612 to realize the power supply connection between the power supply adapter board 47 and the power supply component 46.

[0068] The power supply adapter board 47 is located in the middle of the backplane body 42 in the width direction and is fixedly connected to the backplane body 42 through fasteners. A third power supply connector 472 is provided on the front side of the power supply adapter board 47. A fourth power supply connector (not shown in the figure) is provided on both the accelerator module and the central processing unit module 3. The fourth power supply connector is plugged into the corresponding third power supply connector 472 to realize the power supply connection between the accelerator module and the central processing unit module 3. Specifically, the height of the power supply adapter board 47 matches the width of the backplane body 42. Three third power supply connectors 472 are provided on the power supply adapter board 47 from top to bottom. The three third power supply connectors 472 are respectively arranged corresponding to two graphics processing unit modules 2 and one central processing unit module 3. Fourth power supply connectors are respectively provided at the rear ends of the two graphics processing unit modules 2 and the rear end of the central processing unit module 3. When the graphics processing unit modules 2 and the central processing unit module 3 are installed in place, the fourth power supply connector can just be plugged into the corresponding third power supply connector 472 to power on.

[0069] In some embodiments of the present application, the power supply component 46 includes a power supply board 461 and a structural member 462. The power supply board 461 is disposed on the front side of the structural member 462 and connected to the structural member 462. The power supply connector is disposed at the front end of the power supply board 461. The first terminal 4612 is disposed on the upper surface of the power supply board 461. The external power supply connector 4621 is disposed at the rear end of the structural member 462. The external power supply connector 4621 is electrically connected to the first power supply connector 4611 through a cable. The power supply board 461 is a circuit board. The structural member 462 has the functions of electrical transmission and data transmission and only serves as the installation base for the external power supply connector 4621. The external power supply powers on the graphics processor module 2 and the central processor module 3 through the external power supply connector 4621, the cable, the power supply board 461, the first terminal 4612, the second power supply connector 471, the power supply adapter board 47, the third power supply connector 472, and the fourth power supply connector.

[0070] In some embodiments of the present application, a cable fixing structure 4622 is provided on the structural member 462. The cable fixing structure 4622 may specifically be a wire harness clip, and the wire harness clip is used to constrain the cable on the structural member 462. The number of cables between the power supply board 461 and the external power supply connector 4621 is large. If not constrained, multiple cables are intertwined and the structure is messy. The wire harness clip correspondingly constrains the cables on the structural member 462, avoiding the phenomenon of flying wires.

[0071] In some embodiments of the present application, the server further includes a power supply module 5. The power supply module 5 is inserted into the installation space from the first installation port. The power supply module 5 is located below the accelerator module and the central processor module 3 and is correspondingly arranged with the base 43. A fifth power supply connector (not shown in the figure) is provided at the rear end of the power supply module 5, and the fifth power supply connector is correspondingly plugged into the first power supply connector 4611. The power supply module 5 is used as a storage battery, and through the plugging of the fifth power supply connector and the first power supply connector 4611, the power supply board 461 can also be powered on.

[0072] The power supply module 5 is located at the bottom layer and is correspondingly arranged with the base 43. After the power supply module 5 is inserted into the installation space from the first installation port, the fifth power supply connector on the power supply module 5 is just plugged into the first power supply connector 4611 on the base 43 to be powered on.

[0073] In some embodiments of the present application, the height of the chassis body 41 and the backplane body 42 is 7U, the overall height of the graphics processor module 2 is 3U, the height of two graphics processor modules 2 is 6U, and the overall height of the central processor module 3 is 1U. Therefore, the first heat dissipation cavity occupies a height of 6U to arrange 15 first fans, the second heat dissipation cavity occupies a height of 1U to arrange 9 second fans, the base 43 occupies a height of 1U, and the overall height of the power supply module 5 is also 1U.

[0074] In some embodiments of the present application, a fourth partition 422 is further provided on the front side of the backplane body 42. The fourth partition 422 is provided at the bottom of the backplane body 42 and abuts against the bottom surface of the lowermost central processing unit module 3 or accelerator module. Specifically, the server includes a power supply module 5, a central processing unit module 3, two graphics processing unit modules 2, and a chassis module 4. The fourth partition 422 separates the central processing unit module 3 and the power supply module 5, so that the air output of the second fan blows only to the central processing unit module 3.

[0075] The above provides a detailed introduction to a server provided by the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A server, characterized in that, Comprising: A chassis, with an installation space formed inside, and both ends of the chassis are open to form a first installation opening and a second installation opening respectively; An accelerator module, inserted into the installation space from the first installation opening, and the accelerator module includes any one of a graphics processing unit module, a tensor processing unit module, and a neural network processing unit module; A central processing unit module, inserted into the installation space from the first installation opening, and stacked with the accelerator module; A plug-in box module, inserted into the installation space from the second installation opening, and independent first and second heat dissipation cavities are formed in the plug-in box module. A first fan assembly is provided in the first heat dissipation cavity, and a second fan assembly is provided in the second heat dissipation cavity. The first heat dissipation cavity is communicated with the accelerator module through a first heat dissipation channel, and the second heat dissipation cavity is communicated with the central processing unit module through a second heat dissipation channel.

2. The server according to claim 1, characterized in that, The plug-in box module includes a plug-in box body and a backplane assembly. A first partition is provided in the plug-in box body, and the first partition divides the internal space of the plug-in box body into the first heat dissipation cavity and the second heat dissipation cavity. The first heat dissipation cavity faces the accelerator module, and the second heat dissipation cavity faces the central processing unit module; the backplane assembly is arranged on the front side of the plug-in box body and corresponds to the first heat dissipation cavity and the second heat dissipation cavity. A first ventilation opening is provided at a position of the backplane assembly corresponding to the accelerator module, and the first ventilation opening communicates the accelerator module and the first heat dissipation cavity to form the independent first heat dissipation channel. A second ventilation opening is provided at a position of the backplane assembly corresponding to the central processing unit module, and the second ventilation opening communicates the central processing unit module and the second heat dissipation cavity to form the independent second heat dissipation channel.

3. The server according to claim 2, wherein The backplane assembly includes a backplane body, a second partition, and a third partition. The first ventilation opening and the second ventilation opening are provided on the backplane body. There is a first gap between the front side surface of the backplane body and the accelerator module and the central processing unit module. There is a second gap between the rear side surface of the backplane body and the first partition. The front side surface of the backplane body extends forward to form the second partition, and the second partition abuts against the joints of the accelerator module and the central processing unit module. The rear side surface of the backplane body extends backward to form the third partition, and the third partition abuts against the first partition. The second partition and the third partition isolate the air output of the first fan assembly and the air output of the second fan assembly.

4. The server according to claim 1, wherein The first fan assembly includes a plurality of first fans, and the first heat dissipation cavity includes a plurality of first fan installation chambers, and the plurality of first fans are correspondingly installed in the plurality of first fan installation chambers; the second fan assembly includes a plurality of second fans, and the second heat dissipation cavity includes a plurality of second fan installation chambers, and the plurality of second fans are correspondingly installed in the plurality of second fan installation chambers.

5. The server according to claim 1, characterized in that, The accelerator module includes a first box body and an accelerator module disposed in the first box body. One of a first male connector and a first female connector is provided at the rear end of the first box body, and the other of the first male connector and the first female connector is provided at a corresponding position of the plug-in box module. The first male connector and the first female connector can be correspondingly plugged.

6. The server according to claim 5, wherein An avoidance opening is provided at the rear end of the first box body. A first connector bracket is provided at the avoidance opening. The first connector bracket is connected to the bottom wall of the first box body by a fastener. The first male connector or the first female connector is mounted on the first connector bracket.

7. The server according to claim 6, wherein The lower end of the avoidance opening is flush with the bottom wall of the first box body. The lower surface of the first connector bracket is provided with a first hook and a limit block. The limit block is located in front of the first hook. A limit groove cooperating with the limit block is provided on the bottom wall of the first box body. The limit block can move in the limit groove in the front-rear direction. The first connector bracket passes through the avoidance opening from back to front. When the first hook is in snap-fit connection with the bottom wall of the first box body, the limit block abuts against the front side wall of the limit groove.

8. The server according to claim 1, wherein Sliding blocks are arranged on the side wall of the accelerator module in the front-rear direction. Rollers are provided at corresponding positions on the inner side wall of the chassis. The sliding blocks are located above the rollers and are in rolling cooperation with the rollers.

9. The server according to claim 5, wherein A first handle assembly is provided at the front end of the side wall of the first box body. The first handle assembly includes a first handle body and a first locking member. The first handle body is rotatably connected to the first box body. The first locking member is connected between the first box body and the first handle body to lock the first handle body. And under the action of an external force, the first locking member is disengaged from the first handle body, and the first handle body is unlocked.

10. The server according to claim 9, characterized in that The first handle body has a first connection end and a first cooperation end. The first connection end is rotatably connected to the side wall of the first box body. A first spring is connected between the first box body and the first handle body. The first locking member has a second connection end and a locking end. The second connection end is rotatably connected to the side wall of the first box body. A second spring is connected between the first box body and the first locking member so that the locking end abuts against and locks the first cooperation end of the first handle body. When the locking force of the first locking member acting on the first handle body disappears, the first handle body rotates to the unlocked position under the elastic force of the first spring.

11. The server according to claim 5, wherein An elastic stop member is provided on the side wall of the first box body. The front end of the elastic stop member is connected to the side wall of the first box body. The rear end of the elastic stop member forms a suspended second hook. A card interface is provided on the chassis. The second hook extends out of the first box body from the card interface and can be in snap-fit connection with the front side of the card interface.

12. The server according to claim 1, characterized in that One of a male second connector and a female second connector is provided at the rear end of the central processing unit module, and the other of the male second connector and the female second connector is provided at a corresponding position of the chassis module. The male second connector and the female second connector can be correspondingly plugged together.

13. The server according to claim 1, characterized in that, A second handle assembly is provided at the front end of the side wall of the central processing unit module. The second handle assembly includes a second handle body and a connecting member. The second handle body is rotatably connected to the side wall of the central processing unit module through a damper, and the connecting member is connected to the second handle body for fixedly connecting to the chassis.

14. The server according to claim 2, characterized in that, The chassis module further includes a base, which is located below the chassis body, and the front end of the base protrudes from the backplane assembly. A power supply assembly is provided inside the base. The power supply assembly has an external power supply connector, and the external power supply connector is located at the rear end of the base for connecting to an external power supply. A first wiring terminal is provided on the power supply assembly. The first wiring terminal passes through the base and is exposed above the base. The backplane assembly includes a power supply transfer board, and a second power supply connector is provided at the lower end of the power supply transfer board. The second power supply connector is correspondingly plugged into the first wiring terminal. A third power supply connector is provided on the front side of the power supply transfer board. Fourth power supply connectors are provided on both the accelerator module and the central processing unit module. The fourth power supply connectors are plugged into the corresponding third power supply connectors to supply power to the accelerator module and the central processing unit module.

15. The server according to claim 14, wherein A power supply module is further included. The power supply module is inserted into the installation space from the first installation opening. The power supply module is located below the accelerator module and the central processing unit module and is correspondingly arranged with the base. A fifth power supply connector is provided at the rear end of the power supply module. A first power supply connector is provided at the front end of the power supply assembly. The first power supply connector extends out from the front end of the base and is correspondingly plugged into the fifth power supply connector.

16. The server according to claim 15, characterized in that, The power supply assembly includes a power supply board and a structural member. The power supply board is provided on the front side of the structural member and is connected to the structural member. The first power supply connector is provided at the front end of the power supply board, and the first wiring terminal is provided on the upper surface of the power supply board. The external power supply connector is provided at the rear end of the structural member, and the external power supply connector is electrically connected to the first power supply connector through a cable.

17. The server according to claim 16, wherein A cable fixing structure is provided on the structural member for restraining the cable on the structural member.

18. The server according to claim 3, wherein A fourth partition is further provided on the front side of the backplane body. The fourth partition is provided at the bottom of the backplane body and abuts against the bottom surface of the lowermost central processing unit module or accelerator module.

19. The server according to any one of claims 1 to 17, characterized in that, The number of accelerator modules is one or more, and the number of central processing unit modules is one or more. The accelerator modules are stacked above the central processing unit modules.

20. The server according to claim 5, wherein The accelerator module is a graphics processing unit module, the number of the graphics processing unit modules is eight, each of the graphics processing unit modules includes a graphics processing card, and the graphics processing card is plugged in the first box body.

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