Liquid cooling transmission pipeline and cabinet server

Abstract

The present application provides a liquid cooling transmission pipeline and a cabinet server. The liquid cooling transmission pipeline comprises first holes and second holes, and further comprises a liquid supply pipeline, a liquid return pipeline, a connection portion, an input branch pipe, and an output branch pipe; the liquid supply pipeline is provided with a first mounting portion, the first holes pass through the first mounting portion and the wall of the liquid supply pipeline, and the plurality of first holes are communicated with the channel of the liquid supply pipeline; the liquid return pipeline is provided with a second mounting portion, the second holes pass through the second mounting portion and the wall of the liquid return pipeline, and the plurality of second holes are communicated with the channel of the liquid return pipeline; the liquid supply pipeline and the liquid return pipeline are arranged in parallel at an interval, the connection portion is connected between the liquid supply pipeline and the liquid return pipeline, and the connection portion, the liquid supply pipeline and the liquid return pipeline are integrally formed; the input branch pipe is communicated with the liquid supply pipeline, and the output branch pipe is communicated with the liquid return pipeline. According to the technical solution of the present application, by adjusting the structure of the transmission pipeline, the processing difficulty of the liquid cooling transmission pipeline is reduced, thereby improving the yield rate of the liquid cooling transmission pipeline in production.

Description

Liquid cooling transmission pipelines and cabinet servers

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on September 28, 2023, with application number 202311277806.0 and application name “Liquid Cooling Transmission Pipeline and Cabinet Server”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of liquid cooling, and in particular to a liquid cooling transmission pipeline and a cabinet server. Background Art

[0003] Liquid cooling is the most common cooling method for server nodes. Liquid cooling typically involves contacting a cold plate with the heat-generating component. The refrigerant within the cold plate removes heat from the component and then transports the heated refrigerant through a distribution manifold to a heat exchanger within the computer room for heat exchange, allowing the refrigerant to circulate again. However, welding multiple distribution manifolds is a lengthy process and can easily damage the manifolds, resulting in reduced yield.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a liquid-cooling transmission pipe and a cabinet server, which can reduce the difficulty of processing the liquid-cooling transmission pipe by adjusting the structure of the transmission pipe, thereby improving the yield rate of the liquid-cooling transmission pipe production.

[0006] In a first aspect, the present application provides a liquid cooling transmission pipeline, comprising a plurality of first holes and a plurality of second holes, and further comprising:

[0007] a liquid supply pipeline, the liquid supply pipeline comprising a first side surface, the first side surface being provided with a first mounting portion, the first holes penetrating the first mounting portion and a wall of the liquid supply pipeline, a plurality of the first holes being in communication with a channel of the liquid supply pipeline;

[0008] a liquid return pipe, the liquid return pipe comprising a second side surface, the second side surface being provided with a second mounting portion, the second holes penetrating the second mounting portion and a pipe wall of the liquid return pipe, a plurality of the second holes being in communication with a channel of the liquid return pipe;

[0009] a connecting portion, wherein the liquid supply pipe and the liquid return pipe are arranged in parallel and spaced apart, the connecting portion is connected between the liquid supply pipe and the liquid return pipe, and the connecting portion, the liquid supply pipe and the liquid return pipe are integrally formed; and

[0010] an input branch pipe and an output branch pipe, wherein the input branch pipe is connected to the liquid supply pipe, and the output branch pipe is connected to the liquid return pipe;

[0011] The refrigerant can enter the liquid supply pipe from the input branch pipe and flow out through the multiple first holes of the liquid supply pipe. Moreover, the refrigerant can enter the liquid return pipe from the multiple second holes and flow out of the liquid cooling transmission pipe through the output branch pipe.

[0012] It is understandable that providing the first hole in the liquid supply pipe weakens the structural stability of the liquid supply pipe. However, providing the first mounting portion on one side of the liquid supply pipe can increase the structural strength of the pipe wall on the side where the first hole is provided. The embodiments of the present application improve the structural stability of the liquid supply pipe by adding the first mounting portion.

[0013] Similarly, providing a second hole in the liquid return pipe weakens its structural stability. However, providing the second mounting portion on one side of the liquid return pipe can increase the structural strength of the pipe wall on the side where the second hole is provided. The present embodiment improves the structural stability of the liquid return pipe by adding the second mounting portion.

[0014] The liquid supply pipe and liquid return pipe provided in the embodiment of the present application have a relatively stable structure, thereby preventing the liquid supply pipe and liquid return pipe from being easily deformed or damaged during the one-piece molding process, thereby improving the yield rate of the production of liquid cooling transmission pipes.

[0015] In a possible implementation manner, the connecting portion, the liquid supply pipe, and the liquid return pipe form an isolation channel, and the isolation channel extends along the length direction of the liquid-cooling transmission pipe.

[0016] As you can understand, the isolated space contains air, which is a good thermal insulator. Therefore, the heat in the return pipe can be isolated by the air, preventing heat transfer from the return pipe to the supply pipe, ensuring that the refrigerant in the supply pipe can maintain a low temperature.

[0017] In a possible implementation manner, the liquid supply pipe and the first mounting portion are integrally formed, and the liquid return pipe and the second mounting portion are integrally formed.

[0018] It is understandable that one-piece molding can save the assembly process of the first mounting part and the liquid supply pipe, the second mounting part and the liquid return pipe, and improve the connection strength of the first mounting part and the liquid supply pipe, the second mounting part and the liquid return pipe.

[0019] In a possible implementation manner, the cross-sectional shape of the liquid supply pipe and the cross-sectional shape of the liquid return pipe are circular;

[0020] The connecting portion includes a first sub-portion and a second sub-portion. The first sub-portion and the second sub-portion are both connected between the liquid supply pipe and the liquid return pipe. The first sub-portion and the second sub-portion are spaced apart and opposed to each other to form an isolation channel.

[0021] It's understandable that the cross-sectional shape of a pipe's inner profile affects the hydraulic radius. The hydraulic radius is often used to calculate a pipe's water-carrying capacity. The hydraulic radius is the ratio of the flow area of ​​the pipe's water-carrying section to the length of the pipe's side in contact with the water (i.e., the wetted perimeter). Therefore, the refrigerant flow rate in a pipe is related to the pipe's cross-sectional shape across its width. By varying the cross-sectional shape of the pipe's inner profile, the refrigerant flow rate within the pipe can be controlled.

[0022] And the cross-sectional shape of the outer contour of the pipe can be set according to the requirements of the installation space to adapt to different application scenarios.

[0023] In one possible embodiment, the liquid supply pipe has a rectangular cross-section, includes a second wall, and the liquid return pipe has a rectangular cross-section, includes a fifth wall, and the second wall and the fifth wall are arranged opposite to each other along the width direction of the liquid-cooling transmission pipe.

[0024] The connecting portion includes a first sub-portion, a second sub-portion and a third sub-portion, the first sub-portion and the second sub-portion are both connected between the second wall and the fifth wall, the first sub-portion and the second sub-portion are spaced apart from each other, the third sub-portion is connected between the first sub-portion and the second sub-portion, and the third sub-portion is spaced apart from the second wall and the fifth wall to form two isolation channels.

[0025] As you can understand, square supply and return pipes are easier to manufacture, less expensive, and convenient to fabricate and modify. Furthermore, square tubes take up less space, and with the same cross-sectional area, they are shorter than round tubes. Therefore, square shapes for return and supply pipes allow liquid cooling transmission pipes to be used in a wider range of applications.

[0026] Setting the cross-sectional shape of the pipes (supply and return lines) to a square shape makes it easier to install the liquid cooling transmission pipes on the pipe bracket. When the cross-sectional shape is rectangular, the area of ​​the rectangle can be adjusted to adjust the flow rate of the refrigerant in the pipes.

[0027] In addition, the isolated space contains air, which is a good thermal insulator. Therefore, the heat in the return pipe can be isolated by the air, preventing the heat from the return pipe from transferring to the supply pipe, ensuring that the refrigerant in the supply pipe can maintain a lower temperature.

[0028] In one possible embodiment, the cross-sectional shape of the liquid supply pipe is triangular, the liquid supply pipe includes a second wall, the cross-sectional shape of the liquid return pipe is triangular, the liquid return pipe includes a fifth wall, and the second wall and the fifth wall are arranged opposite to each other along the width direction of the liquid cooling transmission pipe;

[0029] The connecting portion includes a first sub-portion and a second sub-portion. The first sub-portion and the second sub-portion are both connected between the second wall and the fifth wall. The first sub-portion and the second sub-portion are spaced apart and opposed to each other to form an isolation channel.

[0030] It is understood that when the cross-sectional shapes of the supply and return pipes are equal triangles, the flow rates in the supply and return pipes are substantially the same. Consequently, the resistance encountered by the refrigerant flowing from the supply pipe into the cold plate is the same as the resistance encountered by the refrigerant flowing from the return pipe into the heat exchanger, allowing the refrigerant to circulate more smoothly through the liquid cooling assembly.

[0031] In addition, when the cross-section of the pipe is triangular, the hydraulic radius of the supply and return pipes is smaller. The refrigerant encounters greater resistance in the pipe. Therefore, when the refrigerant flow rate needs to be controlled at a lower speed, a pipe with a triangular cross-section can be used.

[0032] In one possible embodiment, the cross-sectional shape of the liquid supply pipe is a pentagon, and the liquid supply pipe includes a second wall and a third wall connected thereto. The cross-sectional shape of the liquid return pipe is a pentagon, and the liquid return pipe includes a seventh wall and an eighth wall connected thereto. Along the width direction of the liquid-cooling transmission pipe, the second wall is arranged opposite to the seventh wall, and the third wall is arranged opposite to the eighth wall.

[0033] The connecting portion includes a first sub-portion, a second sub-portion and a third sub-portion, the first sub-portion is connected between the second wall and the seventh wall, one end of the second sub-portion is connected to the connection between the second wall and the third wall, the other end of the second sub-portion is connected to the connection between the seventh wall and the eighth wall, the second sub-portion is spaced opposite to the first sub-portion to form a first isolation channel, the third sub-portion is connected between the second wall and the seventh wall, and the third sub-portion is spaced opposite to the second sub-portion to form a second isolation channel.

[0034] It is understood that when the cross-sectional shape of the liquid supply and return pipes is a pentagon, the hydraulic radius of the liquid supply and return pipes in this embodiment is greater than the hydraulic radius of pipes with triangular or rectangular cross-sectional shapes, given the same cross-sectional area. Therefore, in different usage scenarios, different cross-sectional shapes of liquid supply and return pipes can be selected based on the required refrigerant flow rate.

[0035] In a second aspect, the present application provides a cabinet server comprising a plurality of server nodes, each of the server nodes comprising a cold plate, a connecting pipe, and the liquid cooling transmission pipe as described above, the liquid cooling transmission pipe further comprising a first joint and a second joint, the connecting pipe comprising a first pipe and a second pipe, the first pipe and the second pipe being arranged side by side and extending in the same direction;

[0036] The first pipe includes a first end and a second end, the first end is connected to the liquid inlet of the cold plate, the second end is connected to one end of the first joint and communicates with the first joint, and the other end of the first joint is connected to the first hole;

[0037] The second pipe includes a third end and a fourth end, the third end is connected to the liquid outlet of the cold plate, the fourth end is connected to one end of the second joint and communicates with the second joint, and the other end of the second joint is connected to the second hole.

[0038] In one possible embodiment, when the number of the first holes is the same as the number of the second holes, and the number of the server nodes is less than the number of the first holes, the liquid cooling transmission pipeline further includes a first connection cover and a second connection cover, wherein the first holes not connected to the server nodes are sealedly connected to the first connection cover, and the second holes not connected to the server nodes are sealedly connected to the second connection cover. It is understood that since the liquid cooling heat dissipation pipeline has multiple pairs of first holes and second holes, when the first holes and second holes are not in use, the first connection cover can be used to seal the first hole to prevent leakage in the liquid supply pipeline. The second connection cover can be used to seal the second hole to prevent leakage in the liquid return pipeline.

[0039] In one possible implementation, each of the server nodes includes a chassis, a third connector, and a fourth connector, the chassis is provided with a first through hole and a second through hole, the third connector is passed through the first through hole, and the fourth connector is passed through the second through hole;

[0040] The third joint is connected to the second end of the first pipe, the third joint is matched with the first joint, and the third joint and the first joint cooperate to form a quick joint;

[0041] The fourth connector is connected to the fourth end of the second pipe, and the fourth connector is matched with the second connector to form a quick connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained like these drawings without paying any creative work.

[0043] FIG1 is a schematic diagram of the structure of a cabinet server provided in an embodiment of the present application;

[0044] FIG2 is a schematic structural diagram of the cabinet shown in FIG1 ;

[0045] FIG3 is a schematic structural diagram of a server node shown in FIG1 ;

[0046] FIG4 is a schematic structural diagram of another server node shown in FIG1 ;

[0047] FIG5 is a schematic structural diagram of the liquid cooling transmission pipeline shown in FIG1 ;

[0048] FIG6 is a schematic diagram of a portion of the structure of the first embodiment of the liquid cooling transmission pipeline shown in FIG5;

[0049] FIG7 is a schematic structural diagram of the assembly of the liquid cooling transmission pipeline, the first joint, and the second joint shown in FIG6 ;

[0050] FIG8 is a partial structural diagram of a second embodiment of the liquid cooling transmission pipeline shown in FIG5 ;

[0051] FIG9 is a schematic structural diagram of the assembly of the liquid cooling transmission pipeline, the first joint, and the second joint shown in FIG8 ;

[0052] FIG10 is a partial structural diagram of a third embodiment of the liquid cooling transmission pipeline shown in FIG5 ;

[0053] FIG11 is a schematic structural diagram of the assembly of the liquid cooling transmission pipeline, the first joint, and the second joint shown in FIG10 ;

[0054] FIG12 is a partial structural diagram of a fourth embodiment of the liquid cooling transmission pipeline shown in FIG5 ;

[0055] FIG13 is a schematic diagram of the refrigerant flow of the cabinet server provided in FIG1 of the present application. DETAILED DESCRIPTION

[0056] For ease of understanding, the terms involved in the embodiments of the present application are first explained.

[0057] And / or: It is just a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0058] Multiple: refers to two or more than two.

[0059] Connection: should be understood in a broad sense. For example, A and B are connected, which can be either directly connected or indirectly connected through an intermediary.

[0060] The specific implementation of the present application will be clearly described below with reference to the accompanying drawings.

[0061] Server node: A high-performance computer that runs application software in a network environment, providing shared information resources and various services to online users. It also offers various shared services and other applications to end users. A server includes a central processing unit (CPU), memory, hard disk, and various buses, and features high-speed computing capabilities, long-term reliability, and strong external data throughput.

[0062] The motherboard, also known as the mainboard, system board, or motherboard, connects all the components in the server. The motherboard is used to transmit various electronic signals and initially process some peripheral data.

[0063] BIOS (Basic Input Output System) chip: This chip carries the computer's basic input and output programs, the post-boot self-test program, and the system startup program. It provides the computer with the lowest-level, most direct hardware settings and control. The BIOS chip also provides some system parameters to the operating system.

[0064] CPU (central processing unit): As the computing and control core of the information processing system, it is the execution unit of information processing and program running.

[0065] DIMM (dual inline memory module): A DIMM is a type of memory module. It provides operating space for information processing systems and software. It also temporarily stores CPU calculation data and exchanges data with external storage devices such as hard drives. The CPU can address and read and write to memory via the data bus.

[0066] The PCH (Platform Controller Hub), also known as the Southbridge chip, processes low-speed signals and communicates with the CPU via the Northbridge chip. The Northbridge chip, located near the CPU, primarily controls data exchange between the AGP (Accelerated Graphics Port) graphics card, memory, and the CPU. The Southbridge chip, located near the PCI (Peripheral Component Interconnect) slots, primarily handles data exchange between the floppy drive, hard drive, keyboard, and add-in cards. The Southbridge and Northbridge chips are connected via the PCI bus, forming a motherboard chipset architecture.

[0067] GPU (graphics processing unit): A microprocessor used to perform image and graphics-related operations.

[0068] GPU card: also known as graphics card, including GPU, video memory, circuit board, BIOS firmware, first fan and other components.

[0069] Manifold: Flow distribution manifold, a pipe for fluid distribution in a liquid cabinet, realizing the functions of one-to-many and many-to-one fluid distribution.

[0070] CDU (Coolant Distribution Unit): This unit contains a pump and plate heat exchanger. It is responsible for the circulation flow on the server node side and the flow required by the liquid cooling cabinet. At the same time, the plate heat exchanger isolates and exchanges heat between the liquid on the computer room side and the equipment side, providing refrigerant at a certain temperature for input into the liquid cooling cabinet.

[0071] Please refer to Figures 1 and 2 in combination. Figure 1 is a structural diagram of a cabinet server 1000 provided in an embodiment of the present application. An embodiment of the present application provides a cabinet server 1000. The cabinet server 1000 includes a cabinet 100, a plurality of server nodes 200, and a liquid cooling transmission pipeline 400. The plurality of server nodes 200 and the liquid cooling transmission pipeline 400 are all installed on the cabinet 100. The liquid cooling transmission pipeline 400 can be a flow distribution manifold (Manifold). The liquid cooling transmission pipeline 400 can divert the refrigerant and transmit it to the plurality of server nodes 200. Exemplarily, the plurality of server nodes 200 can be connected in communication to transmit data.

[0072] In some other embodiments, the cabinet server and the heat exchanger 300 can form a server system. The heat exchanger 300 can be a coolant distribution unit (CDU). The heat exchanger 300 can receive the refrigerant with a higher temperature flowing out from the liquid outlet of the liquid cooling transmission pipe 400, and transfer the refrigerant back to the liquid inlet of the liquid cooling transmission pipe 400 after cooling. The liquid cooling transmission pipe 400 distributes the refrigerant to the server node 200 again. In actual use, multiple cabinets 100 can also share a heat exchanger 300. That is, a server system can include multiple cabinet servers 1000 and a heat exchanger 300. A heat exchanger 300 can simultaneously exchange heat with multiple cabinet servers through liquid cooling medium. The installation of a heat exchanger 300 corresponding to one cabinet 100 shown in Figure 1 is only a schematic illustration.

[0073] Please refer to Figure 2, which is a schematic diagram of the structure of the cabinet 100 shown in Figure 1. In one possible embodiment, the cabinet 100 includes a mounting frame 110 and a plurality of slide rails 120. The plurality of slide rails 120 are connected to the mounting frame 110 and are arranged in a sequentially spaced relationship along the height direction of the mounting frame 110. Each slide rail 120 is used to connect to a server node 200.

[0074] Specifically, the mounting frame 110 includes a first side 111 and a second side 112 disposed opposite each other along the width direction, and a third side 113 and a fourth side 114 disposed opposite each other along the length direction. A slide rail 120 includes a first guide rail 121 and a second guide rail 122. The first guide rail 121 is mounted on the first side 111 of the mounting frame 110. The second guide rail 122 is mounted on the second side 112 of the mounting frame 110. The first guide rail 121 and the second guide rail 122 can be disposed opposite and parallel to each other along the width direction of the mounting frame 110. An installation space is defined between the opposing first and second guide rails 121, 122. Each installation space is configured to accommodate a server node 200. The first and second guide rails 121, 122 are located on the third side 113 to form a first insertion port, and the first and second guide rails 121, 122 are located on the fourth side 114 to form a second insertion port.

[0075] In some other embodiments, unlike the above embodiment, the cabinet 100 may include only the mounting frame 110 without the slide rails 120. Multiple server nodes 200 may be directly mounted on the mounting frame 110. This application does not limit the specific connection method between the server nodes and the cabinet. Figure 2 is also for illustrative purposes only.

[0076] The server node 200 in the embodiment of the present application comprises an ICT (information and communications technology) product. ICT products can refer to devices that enable people and organizations to enter the digital world, including switches, routers, network transmission equipment, and server nodes. ICT products can have communication capabilities to enable data transmission; ICT products can also have data processing capabilities to analyze and process data.

[0077] Please refer to Figure 3, which is a schematic diagram of the structure of the server node 200 shown in Figure 1. The server node 200 includes a housing 210, a motherboard 220, a heating element 230, and a cold plate assembly 240. The housing 210 has a storage space. The motherboard 220, the heating element 230, and the cold plate assembly 240 are all connected within the housing 210. The heating element 230 is electrically connected to the motherboard 220. The cold plate assembly 240 is in contact with the heating element 230.

[0078] It should be noted that the purpose of Figure 3 is only to schematically describe the connection relationship between the housing 210, the mainboard 220, the heating element 230 and the cold plate assembly 240, and does not specifically limit the connection position, specific structure and quantity of each device. The structure illustrated in the embodiment of the present application does not constitute a specific limitation on the server node 200. In other embodiments of the present application, the server node 200 includes more or fewer components than shown in Figure 3, or combines certain components, or splits certain components, or arranges components differently. The components shown in Figure 3 can be implemented in hardware, software, or a combination of software and hardware.

[0079] For example, the box body 210 may be in the shape of a rectangular parallelepiped. The box body 210 includes six plates, which may be a first plate 211 and a second plate 212 disposed opposite each other along the thickness direction of the box body 210, and a third plate 213, a fourth plate 214, a fifth plate 215, and a sixth plate 216 connected between the first plate 211 and the second plate 212. The third plate 213 and the fourth plate 214 are disposed opposite each other, and the fifth plate 215 and the sixth plate 216 are disposed opposite each other. The first plate 211, the second plate 212, the third plate 213, the fourth plate 214, the fifth plate 215, and the sixth plate 216 collectively enclose the interior space of the box body 210.

[0080] For example, one or more of the six panels of the housing 210 may be a single-piece panel structure, or a panel structure formed by stacking and / or splicing multiple panels. The outer surfaces of the six panels of the housing 210 are the surfaces of the six panels facing the power supply device outside the housing 210. The outer surfaces of one or more of the six panels of the housing 210 may be flat, or may have protrusions and / or grooves, but may generally be flat.

[0081] Referring again to Figure 3 , the housing 210 has a thickness H, a width W, and a length L. The first plate 211 and the second plate 212 may be parallel to the width direction X and the length direction Y of the housing 210. The third plate 213 and the fourth plate 214 may be parallel to the thickness direction Z and the width direction X of the housing 210. For the convenience of the following description, the positive direction of the X mark is defined as the second direction, the negative direction of the Y mark is defined as the first direction, and the positive direction of the Z mark is defined as the third direction. The fifth plate 215 and the sixth plate 216 may be parallel to the thickness direction Z and the length direction Y of the housing 210. The thickness H of the housing 210 is the distance between the outer surfaces of the first plate 211 and the second plate 212 of the housing 210. The length L of the housing 210 is the distance between the outer surfaces of the third plate 213 and the fourth plate 214 of the housing 210. The width W of the housing 210 is the distance between the outer surfaces of the fifth plate 215 and the sixth plate 216 of the housing 210.

[0082] In one possible embodiment, the housing 210 is provided with a first sliding member 2151, a second sliding member (not shown), and a pipe through-hole 2141. The first sliding member 2151 is provided on the outer surface of the fifth plate 215, and the second sliding member is provided on the outer surface of the sixth plate 216. The first sliding member 2151 can be mounted on the first guide rail 121. The second sliding member can be mounted on the second guide rail 122. The first sliding member 2151 moves relative to the first guide rail 121, and the second sliding member moves relative to the second guide rail 122. The server node 200 is inserted through the first insertion port so that the server node 200 can be installed in the cabinet 100 or removed from the cabinet 100. The pipe through-hole 2141 is provided on the fourth plate 214, and the pipe through-hole 2141 penetrates the fourth plate 214 along the thickness direction of the fourth plate 214. For example, in some other embodiments, the pipe through hole 2141 may also be provided on the first plate 211 , the second plate 212 , the third plate 213 , the fifth plate 215 or the sixth plate 216 .

[0083] In this embodiment, the first guide rail 121 includes a guide groove that extends along the third side 113 of the mounting frame 110 toward the fourth side 114. The first sliding member 2151 includes a slider. The slider extends along the length of the housing 210. The guide groove can be connected to the slider, and the groove wall of the slider can guide the guide groove so that the guide groove and the slider can slide in coordination.

[0084] The mainboard 220 is connected to the interior of the housing 210. In some embodiments, the mainboard 220 may be a rigid substrate. For example, the rigid substrate may be a copper-clad laminate (CCL). The material of the mainboard 220 may be selected based on required specifications, high-speed signals, current flow capacity, cost, and other requirements, and is not strictly limited in this embodiment of the present application.

[0085] In other embodiments, the mainboard 220 may also be a flexible substrate. When the mainboard 220 is a flexible substrate, a reinforcing plate may be used to provide rigid support for the flexible substrate. For example, the flexible substrate may be made of a polyester material such as polyimide. The reinforcing plate may be made of a metal, polymer material, inorganic non-metallic material, or the like, and is not strictly limited in this embodiment of the present application.

[0086] The heating element 230 may be electrically connected to the mainboard 220. The heating element 230 includes components such as a CPU, a GPU, a DIMM, and a PCH.

[0087] It is understood that the heating elements 230 of the current server node 200 include the CPU, GPU, memory, power chip, etc. During the operation of the server node 200, the heating elements 230 will generate heat. The heating elements 230 are subject to strict temperature requirements to ensure the normal operation of the server node 200.

[0088] The cold plate assembly 240 includes a cold plate 241 and a communication pipe 242. One end of the communication pipe 242 is connected to the cold plate 241 and passes through a pipe through-hole 2141 in the housing 210. The other end of the communication pipe 242 is connected to the liquid cooling transmission pipe 400. Specifically, the cold plate 241 has a liquid cooling cavity, and a liquid inlet and outlet are provided in communication with the liquid cooling cavity. The liquid inlet and outlet are located on the same side as the cold plate 241.

[0089] The connecting pipe 242 includes a first pipe 2421 and a second pipe 2422. The first and second pipes 2421 and 2422 are arranged side by side and extend in the same direction. The outer sides of the first and second pipes 2421 and 2422 are connected, or secured together using other fixing aids, such as a retaining ring. The first pipe 2421 includes a first end 2423 and a second end 2424, while the second pipe 2422 includes a third end 2425 and a fourth end 2426. The first and third ends 2423 and 2425 are located on the same side. The second and fourth ends 2424 and 2426 are located on the same side.

[0090] In one possible embodiment, the first end 2423 is connected to the liquid inlet of the cold plate 241. The first pipe 2421 passes through the pipe through-hole 2141 of the housing 210. The second end 2424 of the first pipe 2421 is configured to communicate with the liquid cooling transmission pipe 400. The third end 2425 is connected to the liquid outlet of the cold plate 241. The second pipe 2422 passes through the pipe through-hole 2141 of the housing 210. The fourth end 2426 of the second pipe 2422 is configured to communicate with the liquid cooling transmission pipe 400. The cold plate assembly 240 and the liquid cooling transmission pipe 400 together form the liquid cooling assembly of the cabinet server 1000.

[0091] It is understood that because the cold plate 241 is in contact with the heating element 230, heat from the heating element 230 can be transferred to the cold plate 241. The refrigerant in the cold plate 241 is then transferred to the liquid cooling transmission pipe 400 via the connecting pipe 242, thereby exchanging heat with the heat exchanger 300. The refrigerant continuously removes heat from the cold plate 241. Therefore, the cold plate 241 can maintain a relatively low temperature. As a result, the cold plate 241 can remove a large amount of heat from the heating element 230 after contacting it. This allows the heating element 230 to operate below a certain temperature, ensuring the operational stability of the heating element 230.

[0092] In another possible embodiment, please refer to FIG. 4 , which is a schematic diagram of the structure of another server node 200 shown in FIG. Server node 200 further includes a third connector 250 and a fourth connector 260 . The chassis of server node 200 is provided with a first through-hole 2142 and a second through-hole 2143 . Both first through-hole 2142 and second through-hole 2143 extend through fourth plate 214 along its thickness. Third connector 250 is provided through first through-hole 2142, and fourth connector 260 is provided through second through-hole 2143. Second end 2424 of first pipe 2421 is connected to third connector 250. Fourth end 2426 of second pipe 2422 is connected to fourth connector 260.

[0093] For example, server node 200 may not use cold plate 241 to cool heating components. Instead, all components of server node 200 may be immersed in a liquid coolant to dissipate heat. The housing 210 is provided with a liquid inlet and a liquid outlet for the liquid coolant. The liquid coolant may flow into the housing 210 from the liquid inlet, or from the liquid outlet. The liquid coolant may be a two-phase coolant, such as a fluoride. In other embodiments, the coolant may be a single-phase coolant, such as silicone oil.

[0094] Please refer to Figure 1 again. The heat exchanger 300 includes a heat exchange body 310, a fifth joint 320, and a sixth joint 330. The heat exchange body 310 may have a refrigerant channel therein. Refrigerant may flow within the heat exchange body 310. The heat exchange body 310 includes a liquid inlet and a liquid outlet. The fifth joint 320 is connected to the liquid outlet of the heat exchange body 310, and the sixth joint 330 is connected to the liquid inlet of the heat exchange body 310. The fifth joint 320 and the sixth joint 330 are connected to the same side of the heat exchange body 310. Both the fifth joint 320 and the sixth joint 330 are in communication with the refrigerant channel within the heat exchange body 310 and are used to communicate with the liquid cooling transmission pipeline 400.

[0095] The heat exchanger 300 is located on the fourth side 114 of the mounting frame 110 . A side of the heat exchanger 300 where the fifth joint 320 and the sixth joint 330 are provided is opposite to the fourth side 114 of the mounting frame 110 .

[0096] Please refer to Figure 5, which is a schematic diagram of the structure of the liquid-cooling transmission pipeline 400 shown in Figure 1. Liquid-cooling transmission pipeline 400 includes a liquid supply pipeline 413, a liquid return pipeline 414, a connecting portion 417, an input branch pipe 440, and an output branch pipe 450. The liquid supply pipeline 413, the liquid return pipeline 414, and the connecting portion 417 are integrally formed. The input branch pipe 440 is connected to the liquid supply pipeline 413. The output branch pipe 450 is connected to the liquid return pipeline 414.

[0097] Specifically, the liquid-cooling transmission pipeline 400 is provided with an input through-hole (not shown) and an output through-hole (not shown). The input through-hole extends through the wall of the liquid supply pipeline 413 facing the Y direction, while the output through-hole extends through the wall of the liquid return pipeline 414 facing the Y direction. An input branch pipe 440 is connected to the wall of the liquid supply pipeline 413 facing the Y direction and communicates with the input through-hole. An output branch pipe 450 is connected to the wall of the liquid return pipeline 414 facing the Y direction and communicates with the output through-hole.

[0098] In a possible implementation, the input branch pipe 440 is connected to the fifth joint 320 of the heat exchanger 300 through a hose. The output branch pipe 450 is connected to the sixth joint 330 of the heat exchanger 300 through a hose.

[0099] Exemplarily, along the width direction of the liquid cooling transmission pipe 400, the liquid supply pipe 413, the connecting portion 417 and the liquid return pipe 414 are arranged in parallel. The liquid supply pipe 413 is used to introduce the low-temperature refrigerant flowing in from the heat exchanger 300, and the liquid return pipe 414 is used to lead out the high-temperature refrigerant after heat exchange with the server node 200 installed in the cabinet 100. The liquid supply pipe 413 and the liquid return pipe 414 can be arranged in parallel. The cross-sectional shape of the liquid supply pipe 413 and the cross-sectional shape of the liquid return pipe 414 can be the same or different. It should be explained that the cross-sectional shape of the pipes (liquid supply pipe 413 and liquid return pipe 414) described in this application includes the cross-sectional shape of the inner contour of the pipe and the cross-sectional shape of the outer contour of the pipe. In this embodiment, the cross-sectional shape of the inner contour of the pipe (liquid supply pipe 413 and liquid return pipe 414) and the cross-sectional shape of the outer contour of the pipe are basically the same. The cross-sectional shape described below in this application represents both the cross-sectional shape of the inner contour of the pipe and the cross-sectional shape of the outer contour of the pipe.

[0100] The connecting portion 417 is connected between the liquid supply pipe 413 and the liquid return pipe 414. An isolation channel is formed between the connecting portion and the liquid supply pipe 413 and the liquid return pipe 414.

[0101] It will be appreciated that the supply pipe 413 allows refrigerant to flow from the heat exchanger 300 into the cold plate 241. The temperature of the refrigerant flowing from the supply pipe 413 is relatively low. The return pipe 414 allows refrigerant to flow from the cold plate 241 back into the heat exchanger 300. Therefore, the temperature of the refrigerant in the return pipe 414 is higher than that in the supply pipe 413.

[0102] By adding a connection portion 417 between the liquid supply pipe 413 and the liquid return pipe 414 and separating the liquid supply pipe 413 and the liquid return pipe 414 via the connection portion 417, the present application can avoid a large amount of heat transfer between the liquid supply pipe 413 and the liquid return pipe 414, thereby maintaining the refrigerant in the liquid supply pipe 413 at a relatively low temperature. This can prevent the direct connection between the circumference of the liquid supply pipe 413 and the circumference of the liquid return pipe 414, which would cause heat exchange between the liquid supply pipe 413 and the liquid return pipe 414, thereby preventing the temperature of the refrigerant flowing from the liquid supply pipe 413 into the cold plate 241 from rising. This ensures that the amount of heat that the refrigerant can remove from the heating element 230 is reduced, resulting in the heating element 230 being unable to effectively dissipate heat.

[0103] In some possible implementations, the material for the liquid supply pipe 413, the connecting portion 417, and the liquid return pipe 414 is aluminum alloy. Aluminum alloy has high strength (σb is 110-650 MPa), approaching that of high-alloy steel, while exceeding steel in stiffness. Furthermore, aluminum alloy has excellent casting and plastic processing properties. Therefore, using aluminum alloy to form the integrally formed liquid supply pipe 413, the connecting portion 417, and the liquid return pipe 414 results in a high yield rate. Furthermore, aluminum alloy is lightweight, thus helping to reduce the overall weight of the liquid cooling assembly.

[0104] The liquid supply pipe 413 has a first side surface 411 and a third side surface (not shown). Along the thickness of the liquid-cooling transmission pipe 400, the first side surface 411 and the third side surface are arranged opposite each other. The first side surface 411 faces the opposite direction of the Y direction. In other words, the first side surface 411 faces the first direction, and the third side surface faces the positive direction of the Y direction. The liquid supply pipe 413 has a first mounting portion 415, which is connected to the first side surface 411.

[0105] The liquid return pipe 414 has a second side surface 418 and a fourth side surface 419. Along the thickness direction of the liquid-cooling transfer pipe 400, the second side surface 418 and the fourth side surface 419 are disposed opposite each other. The second side surface 418 faces the opposite direction of the Y direction. In other words, the second side surface 418 faces the first direction. The fourth side surface 419 faces the positive direction of the Y direction. The liquid return pipe 414 has a second mounting portion 416 connected to the second side surface 418.

[0106] The first mounting portion 415 and the second mounting portion 416 are spaced apart along the width direction of the liquid-cooling delivery pipe 400. The first mounting portion 415 and the second mounting portion 416 extend along the length direction of the liquid-cooling delivery pipe 400. Exemplarily, the first mounting portion 415 and the second mounting portion 416 are thin strip-shaped plates, and the first mounting portion 415 and the second mounting portion 416 are integrally formed with the liquid supply pipe 413 and the liquid return pipe 414.

[0107] The liquid-cooling delivery pipe 400 includes a plurality of first holes 4151 and a plurality of second holes 4161. The plurality of first holes 4151 are spaced apart along the length of the first mounting portion 415. Along the thickness of the first mounting portion 415, the first holes 4151 penetrate the walls of the first mounting portion 415 and the liquid supply pipe 413. The first holes 4151 communicate with the channel of the liquid supply pipe 413. The plurality of first holes 4151 are spaced apart along the length of the first mounting portion 415.

[0108] Multiple second holes 4161 are spaced apart along the length of the second mounting portion 416. Along the thickness of the second mounting portion 416, the second holes 4161 penetrate the second mounting portion 416 and the wall of the liquid return pipe 414. The second holes 4161 communicate with the channel of the liquid return pipe 414. The number of second holes 4161 is the same as the number of first holes 4151. The multiple second holes 4161 are spaced apart along the length of the second mounting portion 416.

[0109] When the first hole 4151 on the liquid-cooling transmission pipeline 400 needs to be connected to the server node 200, a first connector 420 can be provided on the liquid supply pipeline 413. The first connector 420 is located within the first hole 4151 and is mutually limited by the hole wall of the first hole 4151. The first connector 420 is connected to the input branch pipe 440. The number of first connectors 420 can be the same as the number of first holes 4151. When the first holes 4151 of the liquid-cooling transmission pipeline 400 do not need to be connected to the server node 200, the liquid-cooling transmission pipeline 400 can be provided with a first connection cover 401. In actual use, the number of first connectors 420 is less than the number of first holes 4151, and the first holes 4151 not connected to the first connector 420 can be sealed with the first connection cover 401. Exemplarily, the material of the first connection cover 401 can include stainless steel.

[0110] In some possible implementations, the first connector 420 is a quick connector. When the first pipe 2421 and the second pipe 2422 of the server node 200 pass directly through the housing 210, the first connector 420 directly connects to the second end 2424 of the first pipe 2421. Because the quick connector can connect and disconnect the first pipe 2421 without tools, configuring the first connector 420 as a quick connector can simplify the assembly process of the cold plate 241 and the liquid cooling transmission pipe 400.

[0111] It is understandable that providing the first hole 4151 on the liquid supply pipe 413, which connects to the connector, weakens the structural stability of the liquid supply pipe 413. The thickness of the pipe wall on the side of the liquid supply pipe 413 where the first mounting portion 415 is provided is greater than the thickness of the pipe wall at other locations on the liquid supply pipe 413. By increasing the thickness of the pipe wall on the side of the liquid supply pipe 413 where the first hole 4151 is provided, the wall of this portion is strengthened. By adding the first mounting portion 415 to improve the structural stability of the liquid supply pipe 413, the embodiments of the present application can increase the mechanical strength of the liquid supply pipe 413.

[0112] When the second hole 4161 on the liquid-cooling transmission pipe 400 needs to communicate with the server node 200, a second connector 430 can be provided on the liquid return pipe 414. The second connector 430 is located within the second hole 4161 and is mutually restrained by the hole wall of the second hole 4161. The second connector 430 is connected to the output branch pipe 450. The number of second connectors 430 can be the same as the number of second holes 4161. When the first hole 4151 of the liquid-cooling transmission pipe 400 does not need to communicate with the server node 200, the liquid-cooling transmission pipe 400 can be provided with a second connection cover 402. In actual use, the number of second connectors 430 is less than the number of second holes 4161, and the second holes 4161 not connected to the second connector 430 can be sealed with the second connection cover 402.

[0113] In some possible implementations, the second connector 430 is a quick connector. When the first pipe 2421 and the second pipe 2422 of the server node 200 pass directly through the housing 210, the second connector 430 directly connects to the fourth end 2426 of the second pipe 2422. Because the quick connector can connect and disconnect the second pipe 2422 without tools, configuring the second connector 430 as a quick connector simplifies the assembly process between the cold plate 241 and the liquid-cooling transmission pipe 400.

[0114] It is understood that providing the second hole 4161 in the liquid return pipe 414, which is connected to the second connector 430, will weaken the structural stability of the liquid return pipe 414. The thickness of the pipe wall on the side of the liquid return pipe 414 where the second mounting portion 416 is provided is greater than the thickness of the pipe wall at other locations on the liquid return pipe 414. By increasing the thickness of the pipe wall on the side of the liquid return pipe 414 where the second hole 4161 is provided, the pipe wall in this portion is strengthened. By adding the second mounting portion 416415 to improve the structural stability of the liquid return pipe 414, the embodiment of the present application can increase the mechanical strength of the liquid return pipe 414.

[0115] In other possible embodiments, unlike the previous possible embodiment, the server node 200 is provided with the third connector 250 and the fourth connector 260 described above. When the liquid cooling transmission pipe 400 is installed outside the cabinet 100 and fixedly connected to the rear side of the mounting bracket 110, the position of the first connector 420 of the liquid cooling transmission pipe 400 corresponds to the position of the third connector 250 of the housing 210. The position of the second connector 430 of the liquid cooling transmission pipe 400 corresponds to the position of the fourth connector 260 of the housing 210. The housing 210 can slide from the front to the rear of the cabinet 100. When the third connector 250 and the fourth connector 260 connected to the housing 210 are close to the first connector 420 and the second connector 430, the third connector 250 can be directly connected to the first connector 420 by blind-mating. The third connector 250 and the first connector 420 are connected to form a quick connector. The fourth connector 260 can be directly connected to the second connector 430 by blind-mating. The fourth connector 260 is matched and connected with the second connector 430 , and the fourth connector 260 and the second connector 430 cooperate to form a quick connector.

[0116] For example, the first connector 420 and the third connector 250 may be connected by blind plugging or manual plugging. The second connector 430 and the fourth connector 260 may be connected by blind plugging or manual plugging.

[0117] It is understandable that when the space between the server node 200 and the liquid-cooling transmission pipeline 400 is small or substantially nonexistent, it can be difficult for an operator to securely connect the first joint 420 to the third joint 250, and the second joint 430 to the fourth joint 260, in the gap between the server node 200 and the liquid-cooling transmission pipeline 400. The first joint 420 provided herein can be blind-plugged to the third joint 250, and the second joint 430 to the fourth joint 260. Thus, during installation of the server in the cabinet 100, the first joint 420 and the third joint 250, and the second joint 430 and the fourth joint 260, can be directly secured. This simplifies the connection method between the server node 200 and the liquid-cooling transmission pipeline 400.

[0118] The liquid cooling transmission pipe 400 is connected to the cabinet 100. One end of the input branch pipe 440 is connected to the liquid supply pipe 413. The other end of the input branch pipe 440 is connected to the fifth connector 320 of the heat exchanger 300 via a hose. One end of the output branch pipe 450 is connected to the liquid return pipe 414, and the other end of the output branch pipe 450 is connected to the sixth connector 330 of the heat exchanger 300 via a hose.

[0119] It can be known that the cross-sectional shape of the pipeline (liquid supply pipeline 413 or liquid return pipeline 414) will affect the size of the hydraulic radius. The hydraulic radius is often used to calculate the water delivery capacity of the pipeline. The hydraulic radius refers to the ratio of the flow area of ​​the water delivery section of the pipeline to the side length of the pipeline in contact with the water body (i.e., the wetted perimeter). Therefore, the flow rate of the refrigerant in the pipeline is related to the cross-sectional shape of the pipeline in the width direction. Based on this, the embodiment of the present application also provides a variety of liquid supply pipelines 413 and liquid return pipelines 414 with different cross-sectional shapes to adapt to different application scenarios. Among them, the cross-sectional shapes of the liquid supply pipeline 413 and the liquid return pipeline 414 provided in the embodiment of the present application can be the same.

[0120] It is understood that when the cross-sectional shapes of the inner contours of the liquid supply pipe 413 and the liquid return pipe 414 are the same, the flow rates in the liquid supply pipe 413 and the liquid return pipe 414 are substantially the same. As a result, the resistance encountered by the refrigerant when flowing from the liquid supply pipe 413 into the cold plate 241 is the same as the resistance encountered when flowing from the liquid return pipe 414 into the heat exchanger 300, thereby allowing the refrigerant to circulate more smoothly in the liquid cooling assembly.

[0121] In addition, the cross-sectional shapes of the outer contours of the liquid supply pipe 413 and the liquid return pipe 414 can be set according to the requirements of the installation space to adapt to different application scenarios.

[0122] In the first possible embodiment, please refer to Figures 6 and 7 . Figure 6 is a schematic diagram of the partial structure of the first embodiment of the liquid-cooling transmission pipe 400 shown in Figure 5 . Figure 7 is a schematic diagram of the assembled structure of the liquid-cooling transmission pipe 400, first joint 420, and second joint 430 shown in Figure 6 . The cross-sectional shapes of the supply pipe 413 and the return pipe 414 along the width direction are both rectangular. The supply pipe 413 includes a first wall 4131, a second wall 4132, a third wall 4133, and a fourth wall 4134, which are connected in sequence. The first wall 4131 and the third wall 4133 are disposed opposite each other in the thickness direction of the liquid-cooling transmission pipe 400. The second wall 4132 and the fourth wall 4134 are disposed opposite each other in the width direction of the liquid-cooling transmission pipe 400. The return pipe 414 includes a fifth wall 4141, a sixth wall 4142, a seventh wall 4143, and an eighth wall 4144, which are connected in sequence. The fifth wall 4141 and the seventh wall 4143 are disposed opposite each other in the thickness direction of the liquid-cooling transmission pipe 400. The sixth wall 4142 and the eighth wall 4144 are arranged opposite to each other in the width direction of the liquid-cooling transfer pipe 400 .

[0123] The first wall 4131 and the fifth wall 4141 are disposed on the same side. The first wall 4131 is the wall of the liquid supply pipe 413 facing the first direction, and the fifth wall 4141 is the wall of the liquid return pipe 414 facing the second direction. The second wall 4132 and the sixth wall 4142 are disposed opposite each other. The third wall 4133 and the seventh wall 4143 are disposed on the same side. The third wall 4133 is the wall of the liquid supply pipe 413 facing the positive direction of the Y direction, and the seventh wall 4143 is the wall of the liquid return pipe 413 facing the positive direction of the Y direction. The fourth wall 4134 and the eighth wall 4144 are disposed opposite each other.

[0124] The first mounting portion 415 is located on the outer surface of the first wall 4131 of the liquid supply pipe 413. The outer surface of the first wall 4131 is also the first side surface 411 of the liquid supply pipe 413 described above. The second mounting portion 416 is connected to the outer surface of the fifth wall 4141 of the liquid return pipe 414. The outer surface of the fifth wall 4141 is also the second side surface 418 of the liquid return pipe 414 described above.

[0125] The connecting portion 417 may include a first sub-portion 4171, a second sub-portion 4172, and a third sub-portion 4173. The first sub-portion 4171 is connected between the second wall 4132 and the sixth wall 4142. The second sub-portion 4172 is connected between the second wall 4132 and the sixth wall 4142. The third sub-portion 4173 is connected between the first sub-portion 4171 and the second sub-portion 4172. The first sub-portion 4171 and the second sub-portion 4172 are spaced apart from each other. The third sub-portion 4173 is spaced apart from the second wall 4132 and the sixth wall 4142.

[0126] Part of the first sub-section 4171, the second sub-section 4172, part of the third sub-section 4173, and the second wall 4132 collectively form a first isolation channel A. Part of the first sub-section 4171, the third sub-section 4173, part of the second sub-section 4172, and the sixth wall 4142 collectively form a second isolation channel B. The first isolation channel A and the second isolation channel B extend along the length of the liquid-cooling transfer pipe 400.

[0127] The input branch pipe 440 is connected to the outer surface of the third wall 4133 . The output branch pipe 450 is connected to the outer surface of the seventh wall 4143 .

[0128] Furthermore, the first isolation channel A and the second isolation channel B serve as an insulating space between the liquid supply pipe 413 and the liquid return pipe 414. Because air is contained within the first isolation channel A, which is a good thermal insulator, the heat in the liquid return pipe 414 is isolated by the air, preventing heat transfer from the liquid return pipe 414 to the liquid supply pipe 413. This ensures that the refrigerant in the liquid supply pipe 413 remains at a relatively low temperature.

[0129] For example, referring to FIG5 , the ends of the return pipe 414 and the supply pipe 413 may also be provided with inspection holes 403. Inspection holes 403 extend through the ends of the supply pipe 413. During the production process of the liquid-cooling transmission pipe 400, inspection holes 403 can be used to pass an endoscope through, allowing the endoscope to observe whether the inner wall of the pipe (supply pipe 413 or return pipe 414) is clean.

[0130] In a second possible embodiment, please refer to Figures 8 and 9. Figure 8 is a schematic diagram of the partial structure of the second embodiment of the liquid-cooling transmission pipe 400 shown in Figure 5. Figure 9 is a schematic diagram of the structure of the liquid-cooling transmission pipe 400 shown in Figure 8 assembled with the first joint 420 and the second joint 430. Unlike the first embodiment, the cross-sectional shapes of the liquid supply pipe 413 and the liquid return pipe 414 along the width direction are both circular. For ease of description, in this embodiment, the wall of the liquid supply pipe 413 is divided into a first wall 4131, a second wall 4132, a third wall 4133, and a fourth wall 4134, which are connected in sequence. The outer surface of the first wall 4131 is also the first side surface 411 mentioned above. The outer surface of the third wall 4133 is also the third side surface 412 mentioned above. The first wall 4131 and the third wall 4133 are arranged opposite each other in the thickness direction of the liquid-cooling transmission pipe 400. The second wall 4132 and the fourth wall 4134 are arranged opposite each other in the width direction of the liquid-cooling transmission pipe 400.

[0131] It should be noted that, since the cross-section of the liquid supply pipe 413 is circular, the wall of the liquid supply pipe 413 is cylindrical, and the first wall 4131, the second wall 4132, the third wall 4133, and the fourth wall 4134 are all parts of the cylindrical liquid supply pipe 413. In actual products, the first wall 4131, the second wall 4132, the third wall 4133, and the fourth wall 4134 do not have obvious boundaries.

[0132] In this embodiment, the wall of the return liquid pipe 414 is divided into a fifth wall 4141, a sixth wall 4142, a seventh wall 4143, and an eighth wall 4144, which are connected in sequence. The outer surface of the fifth wall 4141 is also the second side surface 418 described above. The outer surface of the seventh wall 4143 is also the fourth side surface 419 described above. The fifth wall 4141 and the seventh wall 4143 are disposed opposite each other in the thickness direction of the liquid-cooling delivery pipe 400. The sixth wall 4142 and the eighth wall 4144 are disposed opposite each other in the width direction of the liquid-cooling delivery pipe 400. It should be noted that the cross-sectional shape of the liquid supply pipe 413 is circular. Therefore, the tube wall of the liquid supply pipe 413 is cylindrical, and the fifth wall 4141, the sixth wall 4142, the seventh wall 4143 and the eighth wall 4144 are all partial wall surfaces of the cylindrical liquid supply pipe 413. The fifth wall 4141, the sixth wall 4142, the seventh wall 4143 and the eighth wall 4144 do not have obvious boundaries in the actual product.

[0133] The first wall 4131 and the fifth wall 4141 are arranged on the same side. The second wall 4132 and the sixth wall 4142 are arranged opposite each other. The third wall 4133 and the seventh wall 4143 are arranged on the same side. The fourth wall 4134 and the eighth wall 4144 are arranged opposite each other.

[0134] The first mounting portion 415 is located on the outer surface of the first wall 4131 of the liquid supply pipe 413 . The second mounting portion 416 is connected to the outer surface of the fifth wall 4141 of the liquid return pipe 414 .

[0135] The connecting portion 417 may include a first sub-portion 4171 and a second sub-portion 4172. The first sub-portion 4171 is connected between the second wall 4132 and the sixth wall 4142. The second sub-portion 4172 may be connected between the second wall 4132 and the sixth wall 4142. The first sub-portion 4171 and the second sub-portion 4172 are spaced apart and face each other.

[0136] The first sub-portion 4171 , the second wall 4132 , the second sub-portion 4172 and the sixth wall 4142 are sequentially connected and together form a first isolation channel A. The first isolation channel A extends along the length direction of the liquid-cooling transmission pipe 400 .

[0137] The input branch pipe 440 is connected to the outer surface of the third wall 4133 . The output branch pipe 450 is connected to the outer surface of the seventh wall 4143 .

[0138] It's easy to understand that hydraulic radius = cross-sectional area / wetted perimeter (cross-sectional circumference). Given the same pipe cross-sectional area, a larger hydraulic radius results in a higher flow rate. A larger hydraulic radius means less contact between the fluid and the pipe wall, resulting in less resistance to the refrigerant from the pipe wall, thus increasing the refrigerant's flow capacity. To maximize the refrigerant's flow rate within the pipe, a circular cross-sectional shape can be used.

[0139] Furthermore, the first isolation channel A serves as an insulating space between the liquid supply pipe 413 and the liquid return pipe 414. Because air, a highly effective thermal insulator, is contained within the first isolation channel A, the heat from the liquid return pipe 414 is isolated by the air, thereby preventing heat transfer from the liquid return pipe 414 to the liquid supply pipe 413. This ensures that the refrigerant in the liquid supply pipe 413 remains at a relatively low temperature.

[0140] In a third possible embodiment, please refer to Figures 10 and 11. Figure 10 is a partial structural schematic diagram of the third embodiment of the liquid-cooling transmission pipeline 400 shown in Figure 5. Figure 11 is a structural schematic diagram of the assembly of the liquid-cooling transmission pipeline 400 shown in Figure 10 with the first joint 420 and the second joint 430. Unlike the first embodiment, the cross-sectional shapes of the liquid supply pipeline 413 and the liquid return pipeline 414 in the width direction are both triangular. The liquid supply pipeline 413 includes a first wall 4131, a second wall 4132, and a third wall 4133 that are connected. The outer surface of the first wall 4131 is also the first side surface 411 described above, and the outer surface of the second wall 4132 is also the third side surface 412 described above.

[0141] The liquid return pipe 414 includes a fourth wall 4134, a fifth wall 4141, and a sixth wall 4142. The first wall 4131 and the fourth wall 4134 are disposed toward the same side in the thickness direction of the liquid-cooling transfer pipe 400. The second wall 4132 and the fifth wall 4141 are disposed opposite each other. The third wall 4133 and the sixth wall 4142 are disposed opposite each other. The outer surface of the fourth wall 4134 is also the second side surface 418 described above, and the outer surface of the fifth wall 4141 is also the fourth side surface 419 described above.

[0142] The first mounting portion 415 is connected to the outer surface of the first wall 4131 of the liquid supply pipe 413 . The second mounting portion 416 is connected to the outer surface of the fourth wall 4134 of the liquid return pipe 414 .

[0143] The connecting portion 417 includes a first sub-portion 4171 and a second sub-portion 4172. The first sub-portion 4171 is connected between the second wall 4132 and the fifth wall 4141. The second sub-portion 4172 is connected between the second wall 4132 and the fifth wall 4141. The first sub-portion 4171 and the second sub-portion 4172 are spaced apart and opposite to each other.

[0144] The first sub-portion 4171 , the second wall 4132 , the second sub-portion 4172 and the fifth wall 4141 together form a first isolation channel A. The first isolation channel A extends along the length direction of the liquid-cooling transmission pipe 400 .

[0145] The input branch pipe 440 may be connected to the outer surface of the second wall 4132 , and the output branch pipe 450 may be connected to the outer surface of the fifth wall 4141 .

[0146] Furthermore, the first isolation channel A serves as an insulating space between the liquid supply pipe 413 and the liquid return pipe 414. Because air, a highly effective thermal insulator, is contained within the first isolation channel A, the heat from the liquid return pipe 414 is isolated by the air, thereby preventing heat transfer from the liquid return pipe 414 to the liquid supply pipe 413. This ensures that the refrigerant in the liquid supply pipe 413 remains at a relatively low temperature.

[0147] In a fourth possible embodiment, please refer to Figure 12, which is a partial structural diagram of the fourth embodiment of the liquid-cooling transmission pipe 400 shown in Figure 5. Unlike the first possible embodiment, the cross-sectional shapes of the liquid supply pipe 413 and the liquid return pipe 414 in the width direction are both pentagonal. The liquid supply pipe 413 includes a first wall 4131, a second wall 4132, a third wall 4133, a fourth wall 4134, and a fifth wall 4141, which are connected in sequence. The outer surface of the first wall 4131 is also the first side surface 411 described above, and the outer surface of the fourth wall 4134 is also the third side surface 412 described above.

[0148] The liquid return pipe 414 includes a sixth wall 4142, a seventh wall 4143, an eighth wall 4144, a ninth wall 4145, and a tenth wall 4146, which are connected in sequence. The first wall 4131 and the sixth wall 4142 are both arranged in the thickness direction of the liquid-cooling transmission pipe 400. The second wall 4132 and the third wall 4133 face the liquid return pipe 414. The fourth wall 4134 and the fifth wall 4141 face away from the liquid return pipe 414. The seventh wall 4143 and the eighth wall 4144 of the liquid return pipe 414 face the liquid supply pipe 413, while the ninth wall 4145 and the tenth wall 4146 of the liquid return pipe 414 face away from the liquid supply pipe 413. The outer surface of the sixth wall 4142 is also the second side surface 418 described above, and the outer surface of the ninth wall is also the third side surface 412 described above.

[0149] The first mounting portion 415 is connected to the outer surface of the first wall 4131 . The second mounting portion 416 is connected to the outer surface of the sixth wall 4142 .

[0150] The connecting portion 417 includes a first sub-portion 4171, a second sub-portion 4172, and a third sub-portion 4173. The first sub-portion 4171, the second sub-portion 4172, and the third sub-portion 4173 all extend along the length of the liquid-cooling transfer pipe 400. The first sub-portion 4171 is connected between the second wall 4132 and the seventh wall 4143. One end of the second sub-portion 4172 is connected to the junction of the second wall 4132 and the third wall 4133, and the other end of the second sub-portion 4172 is connected to the junction of the seventh wall 4143 and the eighth wall 4144. The first sub-portion 4171 and the second sub-portion 4172 are spaced apart and opposite each other. The third sub-portion 4173 is located between the third wall 4133 and the eighth wall. The second sub-portion 4172 and the third sub-portion 4173 are spaced apart and opposite each other.

[0151] The first sub-portion 4171, the second sub-portion 4172, the second wall 4132, and the seventh wall 4143 collectively form a first isolation channel A. The second sub-portion 4172, the third wall 4133, the third sub-portion 4173, and the eighth wall 4144 collectively form a second isolation channel B. The first isolation channel A and the second isolation channel B may extend along the length of the liquid-cooling transfer pipe 400.

[0152] The input branch pipe 440 may be connected to the outer surface of the fourth wall 4134 , and the output branch pipe 450 may be connected to the outer surface of the ninth wall 4145 .

[0153] It is understood that when the cross-sectional shape of the liquid supply pipe 413 and the liquid return pipe 414 is a pentagon, the hydraulic radius of the liquid supply pipe 413 and the liquid return pipe 414 in this embodiment is greater than the hydraulic radius of pipes with triangular or rectangular cross-sectional shapes, given the same cross-sectional area. Therefore, in different usage scenarios, different cross-sectional shapes of the liquid supply pipe 413 and the liquid return pipe 414 can be selected based on the required refrigerant flow rate.

[0154] Furthermore, the first isolation channel A and the second isolation channel B serve as an insulating space between the liquid supply pipe 413 and the liquid return pipe 414. Because air is contained within the first isolation channel A and the second isolation channel B, and air is a good thermal insulator, the heat in the liquid return pipe 414 can be isolated by the air, thereby preventing heat transfer from the liquid return pipe 414 to the liquid supply pipe 413. This ensures that the refrigerant in the liquid supply pipe 413 remains at a relatively low temperature.

[0155] The length of the liquid cooling transmission pipe 400 provided in the embodiment of the present application can also be adjusted according to the height of the cabinet 100 and / or the number of server nodes 200.

[0156] Please refer to Figure 13, which is a schematic diagram of the refrigerant flow of the cabinet server 1000 provided in Figure 1 of the present application. When the liquid cooling component is in operation, the refrigerant can flow out from the fifth joint 320 of the heat exchanger 300 and enter the liquid supply pipe 413 of the liquid cooling transmission pipeline 400 through the input branch pipe 440, and then enter the cold plate 241 from the first joint 420 through the first pipe 2421. The refrigerant can indirectly contact the heating element 230 through the cold plate 241, thereby absorbing heat from the heating element 230. After absorbing heat, the refrigerant flows to the return liquid pipe 414 through the second pipe 2422 and the second joint 430, and then flows to the heat exchanger 300 through the output branch pipe 450 and the sixth joint 330. Finally, the refrigerant can be cooled in the heat exchanger 300 for the next cycle.

[0157] The above is a detailed introduction to the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A liquid cooling transmission pipeline, characterized in that: The method comprises a plurality of first holes and a plurality of second holes, and further comprises: A liquid supply pipeline, the liquid supply pipeline comprising a first side surface, the first side surface being provided with a first mounting portion, the first hole penetrating the first mounting portion and a tube wall of the liquid supply pipeline, and a plurality of the first holes being in communication with a channel of the liquid supply pipeline; A liquid return pipe, the liquid return pipe comprises a second side surface, the second side surface is provided with a second mounting portion, the second hole penetrates the second mounting portion and a pipe wall of the liquid return pipe, and a plurality of the second holes are communicated with a channel of the liquid return pipe; A connecting portion, wherein the liquid supply pipe and the liquid return pipe are arranged in parallel and spaced apart, the connecting portion is connected between the liquid supply pipe and the liquid return pipe, and the connecting portion, the liquid supply pipe and the liquid return pipe are integrally formed; and An input branch pipe and an output branch pipe, wherein the input branch pipe is connected to the liquid supply pipe, and the output branch pipe is connected to the liquid return pipe; The refrigerant can enter the liquid supply pipe from the input branch pipe and flow out through the first holes of the liquid supply pipe, and the refrigerant can enter the liquid return pipe from the second holes and flow out of the liquid cooling transmission pipe through the output branch pipe.

2. The liquid cooling transmission pipeline according to claim 1, characterized in that: The connecting portion, the liquid supply pipe and the liquid return pipe form an isolation channel, and the isolation channel extends along the length direction of the liquid cooling transmission pipe.

3. The liquid cooling transmission pipeline according to claim 2, characterized in that: The liquid supply pipe is integrally formed with the first mounting portion, and the liquid return pipe is integrally formed with the second mounting portion.

4. The liquid cooling transmission pipeline according to any one of claims 1 to 3, characterized in that: The cross-sectional shape of the liquid supply pipe and the cross-sectional shape of the liquid return pipe are circular; The connecting portion includes a first sub-portion and a second sub-portion. The first sub-portion and the second sub-portion are both connected between the liquid supply pipe and the liquid return pipe. The first sub-portion and the second sub-portion are spaced apart from each other to form an isolation channel.

5. The liquid cooling transmission pipeline according to any one of claims 1 to 3, characterized in that: The cross-sectional shape of the liquid supply pipe is rectangular, the liquid supply pipe includes a second wall, the cross-sectional shape of the liquid return pipe is rectangular, the liquid return pipe includes a fifth wall, the second wall and the fifth wall are arranged opposite to each other along the width direction of the liquid cooling transmission pipe, The connecting portion includes a first sub-portion, a second sub-portion and a third sub-portion, the first sub-portion and the second sub-portion are both connected between the second wall and the fifth wall, the first sub-portion and the second sub-portion are spaced apart from each other, the third sub-portion is connected between the first sub-portion and the second sub-portion, and the third sub-portion is spaced apart from the second wall and the fifth wall to form two isolation channels.

6. The liquid cooling transmission pipeline according to any one of claims 1 to 3, characterized in that: The cross-sectional shape of the liquid supply pipe is triangular, the liquid supply pipe includes a second wall, the cross-sectional shape of the liquid return pipe is triangular, the liquid return pipe includes a fifth wall, and the second wall and the fifth wall are arranged opposite to each other along the width direction of the liquid cooling transmission pipe; The connecting portion includes a first sub-portion and a second sub-portion. The first sub-portion and the second sub-portion are both connected between the second wall and the fifth wall. The first sub-portion and the second sub-portion are spaced apart from each other to form an isolation channel.

7. The liquid cooling transmission pipeline according to any one of claims 1 to 3, characterized in that: The cross-sectional shape of the liquid supply pipe is a pentagon, and the liquid supply pipe includes a second wall and a third wall connected to each other. The cross-sectional shape of the liquid return pipe is a pentagon, and the liquid return pipe includes a seventh wall and an eighth wall connected to each other. Along the width direction of the liquid cooling transmission pipe, the second wall is arranged opposite to the seventh wall, and the third wall is arranged opposite to the eighth wall. The connecting portion includes a first sub-portion, a second sub-portion and a third sub-portion, the first sub-portion is connected between the second wall and the seventh wall, one end of the second sub-portion is connected to the connection between the second wall and the third wall, the other end of the second sub-portion is connected to the connection between the seventh wall and the eighth wall, the second sub-portion is spaced apart from the first sub-portion to form a first isolation channel, the third sub-portion is connected between the second wall and the seventh wall, and the third sub-portion is connected to the connection between the second wall and the third wall. The second sub-portion is spaced apart from and opposite to the second sub-portion to form a second isolation channel.

8. A cabinet server, characterized in that: The method comprises a plurality of server nodes, each of the server nodes comprises a cold plate, a connecting pipe and a liquid cooling transmission pipe according to any one of claims 1 to 7, the liquid cooling transmission pipe further comprises a first joint and a second joint, the connecting pipe comprises a first pipe and a second pipe, the first pipe and the second pipe are arranged side by side and extend in the same direction; The first pipe includes a first end and a second end, the first end is connected to the liquid inlet of the cold plate, the second end is connected to one end of the first joint and communicates with the first joint, and the other end of the first joint is connected to the first hole; The second pipe includes a third end and a fourth end, the third end is connected to the liquid outlet of the cold plate, the fourth end is connected to one end of the second joint and communicates with the second joint, and the other end of the second joint is connected to the second hole.

9. The cabinet server according to claim 8, characterized in that: When the number of the first holes is the same as the number of the second holes and the number of the server nodes is less than the number of the first holes, the liquid cooling transmission pipeline also includes a first connecting cover and a second connecting cover, the first hole not connected to the server node is sealedly connected to the first connecting cover, and the second hole not connected to the server node is sealedly connected to the second connecting cover.

10. The cabinet server according to claim 8 or 9, characterized in that: Each of the server nodes comprises a chassis, a third connector and a fourth connector, the chassis is provided with a first through hole and a second through hole, the third connector is passed through the first through hole, and the fourth connector is passed through the second through hole; The third joint is connected to the second end of the first pipe, and the third joint is matched and communicated with the first joint; The fourth joint is connected to the fourth end of the second pipe, and the fourth joint is matched and communicated with the second joint.

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