Frame structure, board, network device and liquid cooling system

Abstract

The present application belongs to the technical field of liquid cooling, and provides a network device and a liquid cooling system. The network device comprises a cabinet, a first board, a second board, a first manifold and a second manifold; the cabinet is internally provided with a middle frame; the first manifold and the second manifold each comprise a liquid cooling quick connector; the first manifold is located on a first side of the middle frame, the liquid cooling quick connector thereof facing a second side of the middle frame; the second manifold is located on the second side of the middle frame, the liquid cooling quick connector thereof facing the first side of the middle frame; the first manifold and the second manifold are connected by means of a communication member; the first board and the second board are each provided with a liquid cooling quick connector at the back end; the first board is located on the second side of the middle frame, and the second board is located on the first side of the middle frame, the first board and the second board being perpendicular to each other; the liquid cooling quick connector of the first board is connected to the liquid cooling quick connector of the first manifold, and the liquid cooling quick connector of the second board is connected to the liquid cooling quick connector of the second manifold. The present application can achieve quick connection of the liquid cooling quick connectors.

Description

Frame structure, single-board unit, network equipment and liquid cooling system

[0001] This application claims priority to Chinese Patent Application No. 202510127616.3, filed on January 27, 2025, entitled "Frame Structure, Single Board, Network Device and Liquid Cooling System", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of liquid cooling technology, and in particular to a frame structure, a single board, a network device, and a liquid cooling system. Background Technology

[0003] With the rapid development of intelligent computing, the computing power of chips has increased dramatically, and the corresponding heat dissipation requirements are getting higher and higher. Air cooling is difficult to meet the high heat dissipation requirements, and the demand for liquid cooling with stronger heat dissipation capabilities is gradually increasing.

[0004] In liquid cooling, cooling equipment (typically cooling towers) located outside the data center connects to the coolant distribution unit (CDU) inside the data center via inlet and outlet pipes, forming a primary circulation loop. This primary loop connects the CDU to chassis-type or box-type network equipment within the data center via inlet and outlet pipes, forming a secondary circulation loop. The coolant in the secondary circulation loop absorbs heat generated by the network equipment and exchanges heat with the coolant in the primary circulation loop at the CDU's heat exchanger, thus achieving liquid cooling.

[0005] Specifically, liquid cooling devices (also called cooling blocks or cold plates) are integrated on the circuit boards (such as service boards or network boards) inserted into the network equipment. The liquid cooling devices are in contact with the heat sources (such as chips) on the circuit boards. The CDU and the liquid cooling devices on each circuit board are connected by pipes to form a secondary circulation pipeline. The heat generated by the heat source is absorbed by the coolant in the liquid cooling device. The coolant in the liquid cooling device circulates in the secondary circulation pipeline, and when it flows to the heat exchanger of the CDU, it exchanges heat with the coolant in the primary circulation pipeline, thus achieving liquid cooling heat dissipation.

[0006] Currently, the connection between the liquid cooling device on the single board and the CDU is mostly done manually. For example, after the technicians insert each single board into the slots of the rack, they insert the flexible tube with the liquid cooling plug into the liquid cooling plug of the single board one by one. The liquid cooling plug is connected to the liquid cooling device on the single board. Summary of the Invention

[0007] This application provides a frame structure, a single board, network equipment, and a liquid cooling system. The back of the single board has a liquid cooling quick connector. After the single board is inserted into the rack, the liquid cooling quick connector is also connected, realizing blind insertion of the liquid cooling quick connector. This connection method is efficient and convenient, and can achieve rapid connection without precise alignment, thus improving operational efficiency.

[0008] In a first aspect, a network device is provided, which includes a cabinet, a first single board, a second single board, a first crossbar and a second crossbar;

[0009] The cabinet has a middle frame. Both the first manifold and the second manifold include liquid-cooled quick connectors. The first manifold is located on the first side of the middle frame, and the liquid-cooled quick connector faces the second side of the middle frame. The second manifold is located on the second side of the middle frame, and the liquid-cooled quick connector faces the first side of the middle frame. The first manifold and the second manifold are connected by a connector. The first side and the second side are two opposite sides of the middle frame.

[0010] Both the first and second single boards have liquid-cooled quick-connect plugs on their back ends. The first single board is located on the second side of the middle frame, and the second single board is located on the first side of the middle frame. The first and second single boards are perpendicular to each other. The liquid-cooled quick-connect plug of the first single board is connected to the liquid-cooled quick-connect plug of the first manifold, and the liquid-cooled quick-connect plug of the second single board is connected to the liquid-cooled quick-connect plug of the second manifold.

[0011] In the solution shown in this application, liquid-cooled quick-connect plugs are arranged on both sides of the mid-frame of the network device, and liquid-cooled quick-connect plugs are arranged on the back end of the first and second single boards. After the first and second single boards are inserted into the cabinet, not only is the communication interconnection between the first and second single boards completed, but the liquid-cooled quick-connect plugs of the first single board are also connected to the liquid-cooled quick-connect plugs in the cabinet, and the liquid-cooled quick-connect plugs of the second single board are also connected to the liquid-cooled quick-connect plugs in the cabinet. This enables blind insertion of the liquid-cooled quick-connect plugs of the first and second single boards. This connection method is efficient and convenient, and can achieve rapid connection of liquid cooling pipelines without the need for precise alignment, thereby improving operational efficiency.

[0012] In one possible implementation, the number of the second single board is one or more, and the first manifold is located on one side of all the second single boards.

[0013] In the scheme shown in this application, both the second single-board and the first manifold are located on the first side (i.e., the rear side) of the middle frame. The second single-board is vertically arranged on the rear side of the middle frame. In the scheme where the first manifold includes multiple liquid-cooled quick-connect plugs, these multiple liquid-cooled quick-connect plugs are also vertically arranged on the rear side of the middle frame. Therefore, both the second single-board and the first manifold are vertically located on the rear side of the middle frame. In schemes with multiple second single-boards, the positional relationship between the first manifold and the multiple second single-boards can be that the first manifold is located on one side of all the second single-boards, for example, on the left side or the right side of all the second single-boards. This arrangement separates the space occupied by the second single-boards from the space occupied by the first manifold, which is beneficial for the maintenance of both the second single-boards and the first manifold.

[0014] Of course, the first manifold can also be mixed with multiple second single plates. For example, at least one second single plate is arranged on the left side of the first manifold, and at least one second single plate is also arranged on the right side of the first manifold.

[0015] In one possible implementation, the number of the first single boards is one or more, and the second manifold is located on one side of all the first single boards.

[0016] In the scheme shown in this application, both the first single-panel and the second manifold are located on the second side (i.e., the front side) of the middle frame. The first single-panel is arranged laterally on the front side of the middle frame. In the scheme where the second manifold includes multiple liquid-cooled quick-connect plugs, these multiple liquid-cooled quick-connect plugs are also arranged laterally on the front side of the middle frame. Therefore, both the first and second manifolds are laterally located on the front side of the middle frame. In schemes with multiple first single-panels, the positional relationship between the second manifold and the multiple first single-panels can be such that the second manifold is located on one side of all the first single-panels, for example, on the upper side or the lower side of all the first single-panels. This arrangement separates the space occupied by the first single-panel and the space occupied by the second manifold, which is beneficial for the maintenance of both the first single-panel and the second manifold.

[0017] In particular, the second manifold can be located on the underside of all the first boards, that is, the second manifold is located at the bottom of the cabinet. In this way, the impact on other components in the cabinet will be minimized in the event of a leak in the second manifold.

[0018] Of course, the second manifold can also be mixed with multiple first single plates. For example, at least one first single plate is arranged on the upper side of the second manifold, and at least one first single plate is also arranged on the lower side of the second manifold.

[0019] In one possible implementation, the cabinet includes a front door and a rear door positioned opposite each other, with a first side of the middle frame facing the rear door of the cabinet and a second side of the middle frame facing the front door of the cabinet.

[0020] The first panel is horizontally located between the second side of the middle frame and the front door of the cabinet, and the second panel is vertically located between the first side of the middle frame and the rear door of the cabinet, or...

[0021] The first single board is vertically located between the second side of the middle frame and the front door of the cabinet, and the second single board is horizontally located between the first side of the middle frame and the rear door of the cabinet.

[0022] In the solution shown in this application, the first board can be a service board or a control board, positioned horizontally on the front side of the middle frame, and the second board can be a switching board, positioned vertically on the rear side of the middle frame. That is, the first board is horizontally located in the front space of the cabinet, and the second board is vertically located in the rear space of the cabinet. Alternatively, the first board is vertically located on the front side of the middle frame, and the second board is horizontally located on the rear side of the middle frame. That is, the first board is vertically located in the front space of the cabinet, and the second board is horizontally located in the rear space of the cabinet.

[0023] In single-board maintenance, technicians can open the front cabinet door to maintain the first single board and open the rear cabinet door to maintain the second single board.

[0024] In one possible implementation, the cabinet includes a front door and a rear door positioned opposite each other, with a first side of the middle frame facing the rear door of the cabinet and a second side of the middle frame facing the front door of the cabinet.

[0025] The first panel is horizontally located between the first side of the middle frame and the rear door of the cabinet, and the second panel is vertically located between the second side of the middle frame and the front door of the cabinet, or...

[0026] The first single board is vertically located between the first side of the middle frame and the rear door of the cabinet, and the second single board is horizontally located between the second side of the middle frame and the front door of the cabinet.

[0027] In the scheme shown in this application, taking the first board as a service board or control board and the second board as a switching board as an example, the first board can be horizontally located at the rear of the middle frame, and the second board can be vertically located at the front of the middle frame. That is, the first board is horizontally located in the rear space of the cabinet, and the second board is vertically located in the front space of the cabinet. Alternatively, the first board can be vertically located at the rear of the middle frame, and the second board can be horizontally located at the front of the middle frame. That is, the first board is vertically located in the rear space of the cabinet, and the second board is horizontally located in the front space of the cabinet.

[0028] Therefore, during single-board maintenance, technicians can open the front cabinet door to maintain the second single board and open the rear cabinet door to maintain the first single board.

[0029] In one possible implementation, both the first manifold and the second manifold include a supply pipe and a return pipe fixed side by side;

[0030] The liquid supply quick connector of the liquid cooling quick connector of the first manifold is connected to the liquid supply pipe of the first manifold, and the liquid return quick connector of the liquid cooling quick connector of the first manifold is connected to the liquid return pipe of the first manifold.

[0031] The liquid supply quick connector of the liquid cooling quick connector of the second manifold is connected to the liquid supply pipe of the second manifold, and the liquid return quick connector of the liquid cooling quick connector of the second manifold is connected to the liquid return pipe of the second manifold.

[0032] The supply pipes of the first manifold and the second manifold are connected by a connector, and the return pipes of the first manifold and the second manifold are connected by a connector.

[0033] In the scheme shown in this application, both the first manifold and the second manifold are structurally composed of a liquid-cooled quick connector, a liquid supply pipe, and a liquid return pipe. The liquid-cooled quick connector includes a liquid supply quick connector and a liquid return quick connector. The liquid supply quick connector of the liquid-cooled quick connector is connected to the liquid supply pipe, and the liquid return quick connector of the liquid-cooled quick connector is connected to the liquid return pipe.

[0034] The quick-connect plug and supply pipe are used for supplying low-temperature coolant, while the quick-connect plug and return pipe are used for supplying high-temperature coolant.

[0035] The first manifold and the second manifold are connected by a connector, that is, the supply pipe of the first manifold and the supply pipe of the second manifold are connected by a connector, and the return pipe of the first manifold and the return pipe of the second manifold are connected by a connector.

[0036] In one possible implementation, the supply pipes of the first manifold and the second manifold are connected by a first tee pipe, which is configured to adjust the flow rate ratio between the supply pipes of the first manifold and the second manifold.

[0037] The return pipes of the first manifold and the second manifold are connected by a second tee pipe, which is configured to adjust the flow rate ratio between the return pipes of the first manifold and the second manifold.

[0038] In the scheme shown in this application, the liquid supply pipe of the first manifold and the liquid supply pipe of the second manifold are connected by a first tee pipe. The flow ratio of the liquid supply pipe to the first manifold and the liquid supply pipe to the second manifold can be adjusted by controlling the diameter of the flow channel opening of the first tee pipe connected to the liquid supply pipe of the first manifold and the diameter of the flow channel opening connected to the liquid supply pipe of the second manifold.

[0039] Similarly, the flow ratio of the return pipe flowing back to the first manifold and the return pipe flowing back to the second manifold can be adjusted by controlling the diameter of the flow channel opening connected to the two return pipes in the second three-way pipe.

[0040] Alternatively, flow valves may be installed on both the first and second tee pipes, or both the first and second tee pipes may be integrated with flow valves. In this case, the flow ratio of the liquid supply pipe flowing to the first manifold and the liquid supply pipe flowing to the second manifold can be adjusted in real time by the flow valve on the first tee pipe, and the flow ratio of the liquid return pipe flowing back to the first manifold and the liquid return pipe flowing back to the second manifold can be adjusted in real time by the flow valve on the second tee pipe.

[0041] It should be noted that, regardless of the method used to adjust the flow ratio, the flow ratio of the liquid supply pipe to the first manifold and the liquid supply pipe to the second manifold is equal to the flow ratio of the liquid return pipe to the first manifold and the liquid return pipe to the second manifold.

[0042] In one possible implementation, the liquid supply pipes of the first manifold and the second manifold are connected by a liquid-cooling quick-connect plug, and the liquid return pipes of the first manifold and the second manifold are connected by a liquid-cooling quick-connect plug.

[0043] In the scheme shown in this application, the liquid supply pipe of the first manifold and the liquid supply pipe of the second manifold are connected by a liquid cooling quick connector. Thus, the liquid cooling quick connector is the connecting component that connects the two liquid supply pipes. The liquid return pipe of the first manifold and the liquid return pipe of the second manifold are connected by a liquid cooling quick connector. Thus, the liquid cooling quick connector is the connecting component that connects the two liquid return pipes.

[0044] The two supply pipes are connected by a liquid cooling quick connector, and the two return pipes are connected by a liquid cooling quick connector. This saves on the connecting pipes between the two supply pipes and the connecting pipes between the two return pipes. As a result, the first and second manifolds are arranged in the cabinet, occupying less space and with simpler piping, which facilitates maintenance.

[0045] In one possible implementation, the back ends of both the first board and the second board further include a signal connector and a power connector.

[0046] The signal connector of the first board is arranged between the power connector of the first board and the liquid cooling fast connector of the first board.

[0047] The signal connector of the second board is arranged between the power connector of the second board and the liquid cooling fast connector of the second board.

[0048] In the solution shown in this application, the signal connector of the first board is located between the power connector and the liquid-cooled quick-connect connector, providing physical spatial isolation between the two and achieving water and electricity isolation, which is beneficial to improving the security of the network equipment. The signal connector of the second board is also located between the power connector and the liquid-cooled quick-connect connector, which also helps to improve the security of the network equipment.

[0049] In one possible implementation, both the first manifold and the second manifold include a liquid supply pipe, and both the first board and the second board include a liquid cooling device for liquid cooling heat dissipation.

[0050] A first valve is provided on the pipeline between the liquid supply pipe of the first manifold and the liquid inlet of the liquid cooling device of the first single board, and on the pipeline between the liquid supply pipe of the second manifold and the liquid inlet of the liquid cooling device of the second single board. The first valve is configured to control the opening and closing of the pipeline.

[0051] In the solution shown in this application, a first valve is arranged on the pipeline between the liquid supply pipe of the first manifold and the liquid cooling device on the first single plate. When a leak occurs on the pipeline between the liquid supply pipe and the liquid cooling device on the single plate, the pipeline can be closed by the first valve to prevent the coolant in the pipeline from leaking continuously.

[0052] In particular, when there are multiple first-layer boards, the liquid cooling devices on these first-layer boards are connected in parallel. If a leak occurs in the pipeline between the liquid cooling device and the liquid supply pipe on one of the first-layer boards, the coolant in the liquid cooling devices on other first-layer boards will rush to the leak point because the pressure at the leak point is the lowest. If this is not controlled, it can easily lead to board burning.

[0053] Similarly, a first valve is also installed on the pipeline between the liquid supply pipe of the second manifold and the liquid cooling device on the second single plate. This is also to facilitate the timely shut-off of the pipeline where the leak is detected, so as to avoid continuous leakage and cause the plate to burn out.

[0054] In one possible implementation, the first valve is arranged on the first board and on the pipeline between the liquid-cooled quick connector of the first board and the liquid-cooling device of the first board;

[0055] The first valve is arranged on the second single board and on the pipeline between the liquid cooling fast plug of the second single board and the liquid cooling device of the first single board.

[0056] In the scheme shown in this application, the first valve can be arranged on a single board, for example, on the first single board, and on the pipeline between the liquid supply quick plug of the liquid cooling quick plug on the first single board and the liquid inlet of the liquid cooling device on the first single board. It should be noted that if the first single board includes multiple liquid cooling devices, and these liquid cooling devices are connected in series, then the first valve is arranged on the pipeline between the last liquid cooling device connected to the liquid supply quick plug of the liquid cooling quick plug and the liquid supply quick plug. If multiple liquid cooling devices are connected in parallel, then the first valve is arranged on the main pipeline connected to the liquid supply quick plug of the liquid cooling quick plug.

[0057] Similarly, a first valve is also arranged on the second panel, and on the pipeline between the liquid supply quick connector of the liquid cooling quick connector on the second panel and the liquid inlet of the liquid cooling device on the second panel. It should be noted that if the second panel includes multiple liquid cooling devices, and these liquid cooling devices are connected in series, then the first valve is arranged on the pipeline between the last liquid cooling device connected to the liquid supply quick connector of the liquid cooling quick connector and the liquid supply quick connector. If multiple liquid cooling devices are connected in parallel, then the first valve is arranged on the main pipeline connected to the liquid supply quick connector of the liquid cooling quick connector.

[0058] It should be noted that, whether it is the first valve on the first single board or the first valve on the second single board, the position of the first valve can be close to the liquid supply quick plug of the liquid cooling quick plug.

[0059] In one possible implementation, the first valve is arranged in the first manifold and on the pipeline between the liquid supply pipe of the first manifold and the liquid cooling quick connector of the first manifold.

[0060] The first valve is arranged in the second manifold, and on the pipeline between the liquid supply pipe of the second manifold and the liquid cooling quick connector of the second manifold.

[0061] In the solution shown in this application, the first valve can also be arranged outside the single plate, for example, in the first manifold, and on the pipeline between the liquid supply pipe of the first manifold and the liquid supply quick plug of the liquid cooling quick plug of the first manifold. In this way, it is not necessary to arrange the first valve on the first single plate, which can reduce the space occupied by the first valve on the first single plate.

[0062] A first valve is installed in the second manifold, and on the pipeline between the liquid supply pipe of the second manifold and the liquid cooling quick-connect plug of the second manifold. This eliminates the need to install the first valve on the second single-panel, reducing the space occupied by the first valve on the second single-panel.

[0063] In one possible implementation, the first manifold includes a piping module and an adapter module, both of which are located on the first side of the middle frame. The liquid-cooled quick connector of the first manifold is disposed on the side of the adapter module facing the middle frame, and the liquid supply pipe and liquid return pipe of the first manifold are disposed in the piping module.

[0064] The piping module has a liquid-cooled adapter for communicating with the supply pipe and return pipe of the first manifold. The adapter module has a liquid-cooled adapter for communicating with the liquid-cooled quick plug of the first manifold. The liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the first manifold are connected by a pipeline. The first valve is disposed in the adapter module and on the pipeline between the liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the first manifold.

[0065] In the solution shown in this application, based on the first valve being arranged on the pipeline between the liquid supply pipe of the first manifold and the liquid cooling quick-connect plug of the first manifold, the first manifold can include two parts: one part integrating the liquid supply pipe and the other part integrating the liquid cooling quick-connect plug. Correspondingly, the first manifold includes a pipeline module and an adapter module. The liquid supply pipe is located on the pipeline module, and the liquid cooling quick-connect plug is located on the adapter module. The pipeline module and the adapter module are connected via an adapter. For example, the surface of the pipeline module facing the adapter module has an adapter, and the surface of the adapter module facing the pipeline module also has an adapter. The adapter of the pipeline module communicates with the liquid supply pipe, and the adapter of the adapter module communicates with the liquid cooling quick-connect plug. Thus, when the adapter of the pipeline module of the first manifold mates with the adapter of the adapter module, the liquid supply pipe of the first manifold and the liquid cooling quick-connect plug can be connected.

[0066] The first valve in the first manifold can be integrated into the adapter module of the first manifold, specifically located on the pipeline between the adapter of the adapter module and the liquid cooling quick connector integrated in the adapter module. Alternatively, the first valve in the first manifold can also be integrated into the pipeline module of the first manifold, specifically located on the pipeline between the liquid supply pipe integrated on the pipeline module and the adapter of the pipeline module.

[0067] In one possible implementation, the second manifold includes a piping module and an adapter module, both of which are located on the second side of the middle frame. The liquid-cooled quick connector of the second manifold is disposed on the side of the adapter module facing the middle frame, and the liquid supply pipe and liquid return pipe of the second manifold are disposed in the piping module.

[0068] The piping module has a liquid-cooled adapter for communicating with the supply pipe and return pipe of the second manifold. The adapter module has a liquid-cooled adapter for communicating with the liquid-cooled quick-connect plug of the second manifold. The liquid-cooled adapter of the adapter module and the liquid-cooled quick-connect plug of the second manifold are connected by a pipeline. The first valve is disposed in the adapter module and on the pipeline between the liquid-cooled adapter of the adapter module and the liquid-cooled quick-connect plug of the second manifold.

[0069] In the solution shown in this application, as described above, based on the arrangement of the first valve on the liquid supply pipe of the second manifold and the liquid cooling quick connector of the second manifold, the second manifold also includes the aforementioned piping module and adapter module. The first valve can be arranged in the adapter module of the second manifold, specifically in the pipe between the adapter of the adapter module and the liquid cooling quick connector integrated on the adapter module; alternatively, the first valve can also be arranged in the piping module of the second manifold, specifically in the pipe between the adapter of the piping module and the liquid supply pipe integrated in the piping module.

[0070] In one possible implementation, both the first manifold and the second manifold include a return pipe, and both the first board and the second board include a liquid cooling device for liquid cooling heat dissipation.

[0071] A second valve is provided on the pipeline between the return pipe of the first manifold and the liquid cooling device of the first single plate, and on the pipeline between the return pipe of the second manifold and the liquid cooling device of the second single plate. The second valve is configured to prevent the backflow of coolant.

[0072] In the solution shown in this application, a second valve is arranged on the pipeline between the return pipe of the first manifold and the outlet of the liquid cooling device of the first single board. The second valve can be a one-way valve, which helps to prevent the high-temperature coolant flowing out of the outlet of the liquid cooling device from flowing back into the liquid cooling device, thus causing the liquid cooling heat dissipation to fail.

[0073] Similarly, a second valve is arranged on the pipeline between the return pipe of the second manifold and the outlet of the liquid cooling device of the second single board. If the second valve can be a one-way valve, it is beneficial to prevent the high-temperature coolant flowing out of the outlet of the liquid cooling device from flowing back into the liquid cooling device, which would lead to the failure of liquid cooling heat dissipation.

[0074] In one possible implementation, a second valve is arranged on the first board and on the pipeline between the liquid-cooled quick connector of the first board and the liquid-cooling device of the first board;

[0075] On the second single board, and on the pipeline between the liquid cooling fast connector of the second single board and the liquid cooling device of the second single board, the second valve is arranged.

[0076] In the scheme shown in this application, the second valve can be arranged on a single board. For example, on the first single board, a second valve is arranged on the pipeline between the return quick plug of the liquid-cooled quick plug on the first single board and the outlet of the liquid-cooling device. It should be noted that if multiple liquid-cooling devices on the first single board are connected in series, then the second valve is specifically arranged on the pipeline between the last liquid-cooling device connected to the return quick plug of the liquid-cooled quick plug and the return quick plug. If multiple liquid-cooling devices on the first single board are connected in parallel, then the second valve is specifically arranged on the main pipeline connected to the return quick plug of the liquid-cooled quick plug.

[0077] Similarly, a second valve is installed on the second board, specifically on the pipeline between the return quick-connect of the liquid-cooled quick-connect plug and the outlet of the liquid-cooling device. It should be noted that if multiple liquid-cooling devices on the second board are connected in series, the second valve is specifically located on the pipeline between the last liquid-cooling device connected to the return quick-connect plug and the return quick-connect plug. If multiple liquid-cooling devices on the second board are connected in parallel, the second valve is specifically located on the main pipeline connected to the return quick-connect plug of the liquid-cooled quick-connect plug.

[0078] It should be noted that, whether it is the second valve on the first board or the second valve on the second board, the position of the second valve can be close to the return quick plug of the liquid cooling quick plug.

[0079] In one possible implementation, a second valve is arranged on the pipeline between the return pipe of the first manifold and the liquid-cooled quick connector of the first manifold;

[0080] The second valve is arranged on the pipeline between the return pipe of the second manifold and the liquid-cooled quick connector of the second manifold.

[0081] In the solution shown in this application, the second valve can also be arranged outside the single plate, for example, in the first manifold, and on the pipeline between the return pipe of the first manifold and the return quick plug of the liquid-cooled quick plug of the first manifold. In this way, it is not necessary to arrange the second valve on the first single plate, which can reduce the space occupied by the second valve on the first single plate.

[0082] A second valve is installed in the second manifold, and on the pipeline between the return pipe of the second manifold and the return quick connector of the liquid-cooled quick connector of the second manifold. This eliminates the need to install a second valve on the second panel, reducing the space occupied by the second valve on the second panel.

[0083] In one possible implementation, the first manifold includes a piping module and an adapter module, both of which are located on the first side of the middle frame. The liquid-cooled quick connector of the first manifold is disposed on the side of the adapter module facing the middle frame, and the liquid supply pipe and liquid return pipe of the first manifold are disposed in the piping module.

[0084] The piping module has a liquid-cooled adapter for communicating with the supply pipe and return pipe of the first manifold. The adapter module has a liquid-cooled adapter for communicating with the liquid-cooled quick plug of the first manifold. The liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the first manifold are connected by a pipeline. The second valve is disposed in the adapter module and on the pipeline between the liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the first manifold.

[0085] In the scheme shown in this application, similar to the first valve being arranged in the first manifold, which includes a piping module and a transition module, the second valve can be arranged in the transition module of the first manifold, specifically in the piping between the adapter of the transition module and the liquid-cooled quick-connect plug integrated on the transition module. Alternatively, the second valve can also be arranged on the piping module of the first manifold, specifically in the piping between the adapter of the piping module and the return pipe integrated on the piping module.

[0086] In one possible implementation, the second manifold includes a piping module and an adapter module, both of which are located on the second side of the middle frame. The liquid-cooled quick connector of the second manifold is disposed on the side of the adapter module facing the middle frame, and the liquid supply pipe and liquid return pipe of the second manifold are disposed in the piping module.

[0087] The piping module has a liquid-cooled adapter for communicating with the supply pipe and return pipe of the second manifold. The adapter module has a liquid-cooled adapter for communicating with the liquid-cooled quick plug of the second manifold. The liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the second manifold are connected by a pipeline. The second valve is disposed in the adapter module and on the pipeline between the liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the second manifold.

[0088] In the scheme shown in this application, similar to the arrangement of the second valve in the first manifold, the second valve can be arranged in the adapter module of the second manifold, specifically in the pipeline between the adapter of the adapter module and the liquid cooling quick connector integrated on the adapter module. Alternatively, the second valve can also be arranged on the pipeline module of the second manifold, specifically in the pipeline between the adapter of the pipeline module and the return pipe integrated on the pipeline module.

[0089] In one possible implementation, the first board is a service board, and the liquid cooling device on the first board includes a first liquid cooling device and a second liquid cooling device. The first liquid cooling device is configured to absorb the heat of the service chip of the first board, and the second liquid cooling device is configured to absorb the heat of the optical module inserted into the first board.

[0090] The liquid supply quick connector of the first liquid cooling quick connector is connected to the liquid inlet of the second liquid cooling device via a pipeline, the liquid outlet of the second liquid cooling device is connected to the liquid inlet of the first liquid cooling device via a pipeline, and the liquid outlet of the first liquid cooling device is connected to the liquid return quick connector of the first liquid cooling quick connector via a pipeline.

[0091] In the solution shown in this application, the first board is a service board. The front panel of the first board will have service interfaces used to connect optical modules, enabling the input and output of service signals. Since the optical modules also generate heat during operation and require heat dissipation, the liquid cooling system on the first board will include a first liquid cooling device for dissipating heat from the service chips and a second liquid cooling device for dissipating heat from the optical modules. Because the heat generated by the optical modules is less than that generated by the service chips, the coolant used to cool the optical modules absorbs relatively little heat and can continue to dissipate heat from the service chips.

[0092] Therefore, the first liquid cooling device and the second liquid cooling device can be connected in series between the liquid supply quick plug and the liquid return quick plug of the liquid cooling quick plug on the first single board, and the liquid inlet of the second liquid cooling device is connected to the liquid supply quick plug, and the liquid outlet of the first liquid cooling device is connected to the liquid return quick plug.

[0093] In this way, the coolant flowing into the first board first dissipates heat for the optical module and then continues to dissipate heat for the service chip. This helps to maximize the cooling capacity of the coolant, that is, it helps to make full use of the cooling capacity of the coolant and avoid waste of cooling capacity.

[0094] In one possible implementation, the service board typically includes multiple service chips, so the number of first liquid cooling devices is also multiple. Usually, multiple first liquid cooling devices are connected in parallel. For example, after multiple first liquid cooling devices are connected in parallel, they are connected to the pipeline between the liquid outlet of the second liquid cooling device and the return quick plug of the liquid cooling quick plug.

[0095] In one possible implementation, the second board is a switching board, which typically has a small number of switching chips, such as one or two. In a scheme with one switching chip, there can be one liquid cooling device; in a scheme with multiple switching chips, there can be two liquid cooling devices, referred to as the third and fourth liquid cooling devices respectively. Because the number of switching chips is small, the third and fourth liquid cooling devices can be connected in series in the piping between the liquid supply and return quick-connect connectors of the liquid-cooled quick-connect connector. The third liquid cooling device dissipates heat for one switching chip, and the fourth liquid cooling device dissipates heat for the other switching chip. Alternatively, multiple liquid cooling devices on the switching board can be connected in parallel in the piping between the liquid supply and return quick-connect connectors of the liquid-cooled quick-connect connector.

[0096] In one possible implementation, the liquid-cooled quick connectors of the first manifold and the second manifold include a movable valve core and a fixed valve cylinder. The movable valve core is located in the fixed valve cylinder and is used to move axially in the fixed valve cylinder to allow the coolant to be turned on or off.

[0097] The liquid cooling quick connectors of the first and second single boards include a fixed valve core and a movable valve cylinder. The movable valve cylinder is sleeved outside the fixed valve core and is used to move along the axial direction of the fixed valve core to allow the coolant to be turned on or off.

[0098] In the solution shown in this application, the liquid-cooled quick-connect plug on the first board is a floating liquid-cooled quick-connect plug. Therefore, when the first board is pushed into the cabinet and the liquid-cooled quick-connect plug on the first board mates with the liquid-cooled quick-connect plug on the first manifold, the connector of the liquid-cooled quick-connect plug on the first board will move circumferentially. Based on the movable nature of the connector of the liquid-cooled quick-connect plug on the first board, the valve core inside the connector of the liquid-cooled quick-connect plug on the first board can be set as a fixed valve core, while the valve core on the first manifold can be set as a movable valve core. The fixed valve core includes a slender valve stem, while the movable valve core does not include the valve stem. Therefore, when the liquid-cooled quick-connect plug on the first board mates with the liquid-cooled quick-connect plug on the first manifold, because the slender valve stem is arranged in the connector of the liquid-cooled quick-connect plug on the first board, the slender valve stem can move with the connector of the liquid-cooled quick-connect plug, thereby avoiding deformation of the valve stem in the event of a hard impact, thus helping to protect the valve stem.

[0099] Secondly, a frame structure including a manifold is provided. The frame structure includes a cabinet, a first manifold, and a second manifold. The cabinet has a middle frame. Both the first manifold and the second manifold include liquid-cooled quick connectors.

[0100] The first manifold is located on the first side of the middle frame, and the liquid-cooled fast connector of the first manifold faces the second side of the middle frame. The first side and the second side are two opposite sides of the middle frame.

[0101] The second manifold is located on the second side of the middle frame, and the liquid-cooled fast connector of the second manifold faces the first side of the middle frame;

[0102] The first manifold and the second manifold are connected by a connecting member.

[0103] In one possible implementation, the cabinet has at least one second slot for inserting a second board on a first side of the middle frame, and the first manifold is located on one side of all the second slots.

[0104] In the scheme shown in this application, since the first manifold is located on one side of all the second slots, and the second slots are for the insertion of the second single board, the first manifold is located on one side of all the second single boards.

[0105] In one possible implementation, the cabinet has at least one first slot for inserting a first board on the second side of the middle frame, and the second manifold is located on one side of all the first slots.

[0106] In the scheme shown in this application, since the second manifold is located on one side of all the first slots, and the first slots are for inserting the first single board, the second manifold is located on one side of all the first single boards.

[0107] In one possible implementation, both the first manifold and the second manifold include a supply pipe and a return pipe fixed side by side;

[0108] The liquid supply quick connector of the liquid cooling quick connector of the first manifold is connected to the liquid supply pipe of the first manifold, and the liquid return quick connector of the liquid cooling quick connector of the first manifold is connected to the liquid return pipe of the first manifold.

[0109] The liquid supply quick connector of the liquid cooling quick connector of the second manifold is connected to the liquid supply pipe of the second manifold, and the liquid return quick connector of the liquid cooling quick connector of the second manifold is connected to the liquid return pipe of the second manifold.

[0110] The supply pipes of the first manifold and the second manifold are connected by a connector, and the return pipes of the first manifold and the second manifold are connected by a connector.

[0111] In one possible implementation, the supply pipes of the first manifold and the second manifold are connected by a first tee pipe, which is configured to adjust the flow rate ratio between the supply pipes of the first manifold and the second manifold.

[0112] The return pipes of the first manifold and the second manifold are connected by a second tee pipe, which is configured to adjust the flow rate ratio between the return pipes of the first manifold and the second manifold.

[0113] In one possible implementation, the liquid supply pipes of the first manifold and the second manifold are connected by a liquid-cooling quick-connect plug, and the liquid return pipes of the first manifold and the second manifold are connected by a liquid-cooling quick-connect plug.

[0114] In one possible implementation, a first valve is arranged in the first manifold, and on the pipeline between the liquid supply pipe of the first manifold and the liquid-cooled quick connector of the first manifold;

[0115] A first valve is arranged in the second manifold, and on the pipeline between the liquid supply pipe of the second manifold and the liquid cooling quick connector of the second manifold;

[0116] The first valve is configured to control the opening and closing of the pipeline in which it is located.

[0117] In one possible implementation, the first manifold includes a piping module and an adapter module, both of which are located on the first side of the middle frame. The liquid-cooled quick connector of the first manifold is disposed on the side of the adapter module facing the middle frame, and the liquid supply pipe and liquid return pipe of the first manifold are disposed in the piping module.

[0118] The piping module has a liquid-cooled adapter for communicating with the supply pipe and return pipe of the first manifold. The adapter module has a liquid-cooled adapter for communicating with the liquid-cooled quick plug of the first manifold. The liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the first manifold are connected by a pipeline. The first valve is disposed in the adapter module and on the pipeline between the liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the first manifold.

[0119] In one possible implementation, the second manifold includes a piping module and an adapter module, both of which are located on the second side of the middle frame. The liquid-cooled quick connector of the second manifold is disposed on the side of the adapter module facing the middle frame, and the liquid supply pipe and liquid return pipe of the second manifold are disposed in the piping module.

[0120] The piping module has a liquid-cooled adapter for communicating with the supply pipe and return pipe of the second manifold. The adapter module has a liquid-cooled adapter for communicating with the liquid-cooled quick-connect plug of the second manifold. The liquid-cooled adapter of the adapter module and the liquid-cooled quick-connect plug of the second manifold are connected by a pipeline. The first valve is disposed in the adapter module and on the pipeline between the liquid-cooled adapter of the adapter module and the liquid-cooled quick-connect plug of the second manifold.

[0121] In one possible implementation, a second valve is arranged on the pipeline between the return pipe of the first manifold and the liquid-cooled quick connector of the first manifold;

[0122] A second valve is arranged on the pipeline between the return pipe of the second manifold and the liquid-cooled quick connector of the second manifold;

[0123] The second valve is configured to prevent coolant backflow.

[0124] In one possible implementation, the liquid-cooled quick connectors of the first manifold and the second manifold include a movable valve core and a fixed valve cylinder, wherein the movable valve core is located in the fixed valve cylinder and is used to move axially within the fixed valve cylinder to allow the coolant to flow through or shut off.

[0125] Thirdly, a single board is provided, the back end of which has a liquid-cooled quick connector, the liquid-cooled quick connector being used to connect with a liquid-cooled quick connector in the rack when the single board is inserted into the rack, wherein the back end of the single board is the end that extends into the rack when the single board is inserted into the rack.

[0126] In the scheme shown in this application, the single board can be either the first single board described above or the second single board described above.

[0127] In one possible implementation, the back end of the board also has a signal connector and a power connector, with the liquid-cooled quick-connect of the board located between the signal connector and the power connector.

[0128] In one possible implementation, a first valve is arranged on the single board and on the pipeline between the liquid-cooled quick connector of the single board and the liquid-cooling device of the single board, wherein the first valve is configured to control the opening and closing of the pipeline.

[0129] In one possible implementation, a second valve is arranged on the single board and on the pipeline between the liquid cooling fast connector of the single board and the liquid cooling device of the single board, wherein the second valve is configured to prevent backflow of coolant.

[0130] In one possible implementation, the single board is a service board, and the liquid cooling device on the single board includes a first liquid cooling device and a second liquid cooling device. The first liquid cooling device is configured to absorb the heat of the service chip of the single board, and the second liquid cooling device is configured to absorb the heat of the optical module inserted into the single board.

[0131] The liquid supply quick connector of the single board's liquid cooling quick connector is connected to the liquid inlet of the second liquid cooling device via a pipeline, the liquid outlet of the second liquid cooling device is connected to the liquid inlet of the first liquid cooling device via a pipeline, and the liquid outlet of the first liquid cooling device is connected to the liquid return quick connector of the single board's liquid cooling quick connector via a pipeline.

[0132] In one possible implementation, the liquid-cooled quick-connect plug of the single board includes a fixed valve core and a movable valve cylinder, the movable valve cylinder being sleeved outside the fixed valve core and used to move along the axial direction of the fixed valve core to allow the coolant to be turned on or off.

[0133] Fourthly, a network device is provided, the network device including the frame structure described in the second aspect or any of the second aspects, and the single board described in the third aspect or any of the third aspects, wherein the number of single boards is multiple, and a portion of the multiple single boards is a first single board and another portion is a second single board;

[0134] The first single board is located on the second side of the middle frame, the second single board is located on the first side of the middle frame, and the first single board and the second single board are perpendicular to each other. The liquid cooling fast connector of the first single board is connected to the liquid cooling fast connector of the first manifold, and the liquid cooling fast connector of the second single board is connected to the liquid cooling fast connector of the second manifold.

[0135] Fifthly, a liquid cooling system is provided, the liquid cooling system including a cooling device, a cooling capacity distribution device, and a network device as described in either the first or fourth aspect, wherein the primary side of the cooling capacity distribution device is connected to the cooling device via a pipeline, and the secondary side of the cooling capacity distribution device is connected to the network device via a pipeline.

[0136] In a sixth aspect, a pipe fitting assembly is provided, the pipe fitting assembly comprising a fixed pipe fitting and a movable pipe fitting, the fixed pipe fitting being applied to the liquid-cooled quick-connect plug of the first manifold as described in either the first or second aspect, or the fixed pipe fitting being applied to the liquid-cooled quick-connect plug of the second manifold as described in either the first or second aspect; the movable pipe fitting, also known as a floating pipe fitting, is applied to the liquid-cooled quick-connect plug of the first single board as described in either the first aspect, or to the liquid-cooled quick-connect plug of the second single board as described in either the first aspect, or to the liquid-cooled quick-connect plug of the single board as described in either the third aspect.

[0137] The fixed pipe joint includes a movable valve core and a fixed valve cylinder. The movable valve core is located in the fixed valve cylinder and is used to move axially in the fixed valve cylinder to allow the coolant to be turned on or off.

[0138] The movable pipe joint includes a fixed valve core and a movable valve cylinder. The movable valve cylinder is sleeved outside the fixed valve core and is used to move along the axial direction of the fixed valve core to allow the coolant to flow or shut off.

[0139] In the solution described in this application, the fixed valve core includes a slender valve stem portion, while the movable valve core does not include a valve stem portion. The fixed valve core is arranged in the movable pipe joint, and the movable valve core is arranged in the fixed pipe joint. When the movable pipe joint and the fixed pipe joint are connected, because the movable pipe joint can move in the circumferential direction and has a range of motion in the circumferential direction, the fixed valve core can move with the movable pipe joint. Therefore, in the event of a collision, this helps to protect the slender valve stem portion and prevents the valve stem portion from deforming in rigid contact, thereby extending the service life of the fixed valve core. The fact that the valve stem portion does not deform or has a weak deformation also helps to prevent liquid leakage.

[0140] In one possible implementation, the fixed pipe joint includes a valve seat, one end of which is used to communicate with the supply or return pipe of the first or second liquid collection pipe, and the other end is used to be fixedly connected to the fixed valve cylinder. The movable valve core is located in the fixed valve cylinder, and a spring in a compressed state is arranged between the movable valve core and the valve seat.

[0141] In one possible implementation, the connection between the valve seat and the fixed valve cylinder is a threaded connection.

[0142] In one possible implementation, the movable pipe fitting includes a valve tube and a sleeve. One end of the valve tube is connected to a fixed valve core, and the other end is used to connect to a pipe on a first or second single plate. The movable valve tube is sleeved outside the fixed valve core and also sleeved outside the valve tube. The sleeve is sleeved outside the movable valve tube and is fixedly connected to the valve tube. A spring in a compressed state is arranged between the movable valve tube and the valve tube, and the spring is sleeved outside the fixed valve core.

[0143] In one possible implementation, the connection between the sleeve and the valve pipe is a threaded connection. Attached Figure Description

[0144] Figure 1 is a schematic diagram of the architecture of a cabinet or chassis network device provided in an exemplary embodiment of this application;

[0145] Figure 2 is a logical schematic diagram of a network device provided in an exemplary embodiment of this application;

[0146] Figure 3 is a schematic diagram of the arrangement of service boards and switching boards in a rack according to an exemplary embodiment of this application;

[0147] Figure 4 is a schematic diagram of a liquid cooling heat dissipation system provided in an exemplary embodiment of this application;

[0148] Figure 5 is a schematic diagram of the structure of a network device provided in an exemplary embodiment of this application;

[0149] Figure 6 is a schematic diagram of the arrangement of the first and second manifolds in the cabinet according to an exemplary embodiment of this application;

[0150] Figure 7 is a schematic diagram of the arrangement of the first and second manifolds in the cabinet according to an exemplary embodiment of this application;

[0151] Figure 8 is a schematic diagram of the first manifold and the second manifold before they are connected by a liquid-cooled quick-connect plug, according to an exemplary embodiment of this application.

[0152] Figure 9 is a schematic diagram of the first manifold and the second manifold connected by a liquid-cooled quick-connect plug according to an exemplary embodiment of this application;

[0153] Figure 10 is a schematic diagram of the structure of a first board as a service board provided in an exemplary embodiment of this application;

[0154] Figure 11 is a schematic diagram of the structure of a second board as a switching board provided in an exemplary embodiment of this application;

[0155] Figure 12 is a schematic diagram of the internal piping connection of a manifold including a piping module and a transfer module provided in an exemplary embodiment of this application. In Figure 12(a), the internal piping of the first manifold is shown, and in Figure 12(b), the internal piping of the second manifold is shown.

[0156] Figure 13 is a schematic diagram of the first manifold pipe module and the adapter module before they are connected, according to an exemplary embodiment of this application;

[0157] Figure 14 is a schematic diagram of the connection of the piping module and the adapter module of the first manifold provided in an exemplary embodiment of this application;

[0158] Figure 15 is a schematic diagram of the second manifold before the piping module and the adapter module are connected, according to an exemplary embodiment of this application;

[0159] Figure 16 is a schematic diagram of the connection of the piping module and the adapter module of the second manifold provided in an exemplary embodiment of this application;

[0160] Figure 17 is a schematic diagram of the fixed pipe joint and the movable pipe joint of the pipe joint assembly provided in an exemplary embodiment of this application before they are connected.

[0161] Figure 18 is a schematic diagram of the fixed pipe joint and the movable pipe joint of the pipe joint assembly provided in an exemplary embodiment of this application after connection;

[0162] Figure 19 is a schematic diagram of the structure of the movable valve core of the fixed pipe joint provided in an exemplary embodiment of this application;

[0163] Figure 20 is a schematic diagram of the fixed valve core of an active pipe fitting provided in an exemplary embodiment of this application.

[0164] Explanation of reference numerals in the attached drawings: 11. Middle frame. 21. First single board; 22. Second single board. 31. First manifold; 32. Second manifold. 41. Main liquid supply pipe; 42. Main liquid return pipe. 51. First tee pipe; 52. Second tee pipe. 61. First valve; 62. Second valve. 210. Circuit board of the first single board; 211. Liquid-cooled quick connector on the first single board; 212. Signal connector on the first single board; 213. Power connector on the first single board; 214. Liquid cooling device on the first single board; 214a. First liquid cooling device; 214b. Second liquid cooling device. 220. Circuit board of the second single board; 221. Liquid-cooled quick connector on the second single board; 222. Signal connector on the second single board; 223. Power connector on the second single board; 224. Liquid cooling device on the second single board; 224a. Third liquid cooling device; 224b. Fourth liquid cooling device. 311. Liquid-cooled quick-connect connector for the first manifold; 312. Liquid supply pipe for the first manifold; 313. Liquid return pipe for the first manifold; 314. Piping module for the first manifold; 315. Adapter module for the first manifold. 3141. First liquid-cooled adapter; 3151. Second liquid-cooled adapter. 321. Liquid-cooled quick-connect connector for the second manifold; 322. Liquid supply pipe for the second manifold; 323. Liquid return pipe for the second manifold; 324. Piping module for the second manifold; 325. Adapter module for the second manifold. 3241. Third liquid-cooled adapter; 3251. Fourth liquid-cooled adapter. 7. Fixed pipe connector; 71. Valve seat; 72. Fixed valve cylinder; 73. Movable valve core; 731. Shut-off part of the movable valve core; 732. Flow guide part of the movable valve core; 7321. Flow guide hole on the movable valve core. 8. Movable pipe fitting; 81. Valve pipe; 82. Movable valve cylinder; 83. Fixed valve core; 84. Sleeve; 831. Shut-off part of fixed valve core; 832. Flow guide part of fixed valve core; 833. Valve stem part of fixed valve core; 8321. Flow guide hole on fixed valve core. 9. Sealing ring. Detailed Implementation

[0165] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0166] This embodiment provides a network device, which can be a chassis-type device or a box-type device. For example, it can be a chassis router or chassis switch, or a box router or box switch. In some examples, the network device can also be a server. This embodiment does not limit the specific type of network device. This embodiment uses a chassis-type or cabinet-type network device as an example. In addition, because the heat dissipation of this network device includes liquid cooling, in some examples, the network device is also called a liquid-cooled cabinet device, liquid-cooled device, or liquid-cooled cabinet.

[0167] Figure 1 shows a schematic diagram of the architecture of a cabinet or chassis-type network device, and Figure 2 shows a logical schematic diagram of network device 100. Referring to Figures 1 and 2, the network device includes a main control board 110, a switching board 120, a service board 130, a cabinet 140, and a power module 150, etc.

[0168] The main control board 110, also known as a control board, main processing unit (MPU), or route processor card, is the core of control and management. It is primarily used for controlling and managing various components within the network device 100, including functions such as route calculation, device management, device maintenance, and protocol processing. There can be one or more main control boards 110, such as two.

[0169] The switch board 120 can also be called a switch fabric unit (SFU) or switch fabric board. The switch board 120 is used for data forwarding. Specifically, the switch board 120 has a switching chip 121 (a single switch board 120 may include one or more switching chips). The switch board 120 is responsible for data switching in the network plane through the switching chip. For example, in the case where the network device 100 has multiple service boards 130, the switch board 120 is used to complete the data exchange between the service boards 130. Referring to Figure 2, two service boards 130 can communicate through the switch board 120. The number of switch boards 120 can be multiple, such as eight.

[0170] Service board 130, also known as interface board, line processing unit (LPU), or line card, provides various service interfaces and is responsible for data reception and transmission. Specifically, service board 130 has service chip 131 (a single service board 130 may include one or more service chips), which are used to handle data reception and transmission. Referring further to Figure 2, service board 130 also includes service interface 132, also called physical interface, physical interface card, or sub-card, used to implement physical layer interfacing functions. Data enters service board 130 through this interface, and processed data is sent out from service interface 132. There can be multiple service boards 130, such as 16.

[0171] Figure 3 shows the layout of the service board 130 and the switching board 120 in the cabinet (the cabinet is not shown in Figure 3). For ease of explanation, a three-dimensional coordinate system is established in Figure 3 with the vertical central axis of the middle frame as the z-axis, the front-to-back direction of the middle frame 11 as the y-axis, and the width direction of the middle frame 11 as the x-axis. This three-dimensional coordinate system will be used as an example in the subsequent figures. The front side of the middle frame 11 is the side of the middle frame 11 facing the front door of the cabinet, and the rear side of the middle frame 11 is the side of the middle frame 11 facing the rear door of the cabinet.

[0172] Referring to Figure 3, the cabinet has a middle frame 11, with service boards 130 and switching boards 120 arranged orthogonally on both sides of the middle frame 11. For example, service boards 130 are horizontally inserted into the front of the middle frame 11, and switching boards 120 are vertically inserted into the rear of the middle frame 11. Service boards 130 and switching boards 120 are perpendicular, and the signal connectors on the back of service boards 130 are connected to the signal connectors on the back of switching boards 120. Of course, in other examples, service boards 130 may also be horizontally inserted into the rear of the middle frame 11, and switching boards 120 may be vertically inserted into the front of the middle frame 11. In other examples, the service board 130 may be vertically positioned in the rack, and the switching board 120 may be horizontally positioned in the rack. For example, the service board 130 may be vertically inserted at the front of the middle frame 11, and the switching board 120 may be horizontally inserted at the rear of the middle frame 11; or, the service board 130 may be vertically inserted at the rear of the middle frame 11, and the switching board 120 may be horizontally inserted at the rear of the middle frame 11. This embodiment uses the arrangement shown in FIG3 as an example, where the service board 130 is horizontally positioned at the front of the middle frame 11, and the switching board 120 is vertically positioned at the rear of the middle frame 11.

[0173] The heat dissipation of the network device in this embodiment includes liquid cooling, as shown in Figure 4, which is a schematic diagram of the liquid cooling system. Referring to Figure 4, the liquid cooling system includes not only the network device 100 mentioned above, but also a cooling distribution device 200 and a cooling device 300. The cooling distribution device 200 is also called a cooling distribution unit (CDU), which is used to adjust the flow rate and temperature of the coolant entering the network device 100.

[0174] Referring to Figure 4, the primary side of the cooling distribution device 200 is connected to the cooling device 300 via a pipeline to form a primary side pipeline (also called a primary side circulation or primary side circulation pipeline). The secondary side of the cooling distribution device 200 is connected to the network device 100 via a pipeline to form a secondary side pipeline (also called a secondary side circulation or secondary side circulation pipeline). The coolant flowing between the cooling distribution device 200 and the cooling device 300 (generally referred to as the primary side coolant) and the coolant flowing between the cooling distribution device 200 and the network device 100 (generally referred to as the secondary side coolant) exchange heat at the cooling distribution device 200. Therefore, the cooling device 300 supplies a lower-temperature primary-side coolant to the cooling distribution device 200. After passing through the cooling distribution device 200, the primary-side coolant becomes a higher-temperature primary-side coolant. The network device 100 supplies a higher-temperature secondary-side coolant to the cooling distribution device 200. After passing through the cooling distribution device 200, the secondary-side coolant becomes a lower-temperature secondary-side coolant and flows back into the network device 100. Thus, the heat generated by the network device 100 is transferred to the cooling device 300 via the cooling distribution device 200, and the cooling energy generated by the cooling device 300 is transferred to the network device 100 via the cooling distribution device 200, achieving the purpose of the cooling device 300 dissipating heat from the network device 100.

[0175] The secondary side of the cooling distribution device 200 is connected to the network device 100 via piping. For example, the network device 100 includes a single board with a liquid-cooled quick-connect connector. The liquid-cooled quick-connect connector is connected to a liquid cooling device on the single board via piping. The liquid cooling device is used to dissipate heat from the chips on the single board. Thus, the connection between the secondary side of the cooling distribution device 200 and the liquid-cooled quick-connect connector on the single board via piping creates a secondary-side circulation between the secondary side of the cooling distribution device 200 and the liquid cooling device on the single board. The coolant flows through this secondary-side circulation, carrying away the heat generated by the chips on the single board. The single board of the network device 100 includes the aforementioned main control board, service board, and switching board.

[0176] Currently, most liquid-cooled quick-connect connectors on network boards are located at the front. For example, the liquid-cooled quick-connect connectors on service boards and main control boards are located on the front panel facing the front cabinet door, while those on switching boards are located on the front panel facing the rear cabinet door. Therefore, when installing or maintaining network boards, technicians need to manually plug and unplug the boards and the pipes connected to the liquid-cooled quick-connect connectors. This manual plugging and unplugging of liquid-cooled pipes is inconvenient for network equipment maintenance and inefficient. Especially when network equipment includes multiple boards (e.g., 2 control boards, 16 service boards, and 8 switching boards), and each board's liquid-cooled quick-connect connector needs to be connected to the cooling distribution equipment via pipes, technicians would need to plug and unplug 26 boards and their liquid-cooled quick-connect connectors.

[0177] Therefore, this embodiment provides a network device with a liquid-cooled quick-connect plug in the cabinet and a liquid-cooled quick-connect plug also arranged on the back of the single board. After the single board is inserted into the cabinet, the liquid-cooled quick-connect plug on the back of the single board is connected with the liquid-cooled quick-connect plug in the cabinet, realizing blind insertion of the liquid-cooled quick-connect plug. This connection method is efficient and convenient, and can achieve rapid connection without precise alignment, thus improving operational efficiency.

[0178] Figure 5 shows a schematic diagram of the network device structure. Referring to Figure 5, the network device includes a cabinet (not shown), a first board 21, and a second board 22. The first board 21 is located on the second side of the middle frame 11, and the second board 22 is located on the first side of the middle frame 11. The first and second sides of the middle frame 11 are opposite to each other. Referring to Figures 4 and 5, the first side of the middle frame 11 can be the rear side, and the second side can be the front side. Of course, the first side of the middle frame 11 can also be the front side, and the second side can be the rear side. In this embodiment, the first side is the rear side, and the second side is the front side.

[0179] The first board 21 can be the service board or control board described above, and the second board 22 can be the switching board described above. The network device has an orthogonal architecture; therefore, the first board 21 is horizontally inserted into the front of the middle frame 11, and the second board 22 is vertically inserted into the rear of the middle frame 11, with the first board 21 and the second board 22 perpendicular to each other. Alternatively, the first board 21 can be horizontally inserted into the rear of the middle frame 11, and the second board 22 can be vertically inserted into the front of the middle frame 11, with the first board 21 and the second board 22 perpendicular to each other. Or, the first board 21 can be vertically inserted into the front of the middle frame 11, and the second board 22 can be horizontally inserted into the rear of the middle frame 11, with the first board 21 and the second board 22 perpendicular to each other. Or, the first board 21 can be vertically inserted into the rear of the middle frame 11, and the second board 22 can be horizontally inserted into the front of the middle frame 11, with the first board 21 and the second board 22 perpendicular to each other. In this embodiment, as shown in FIG5, the first single board 21 is inserted horizontally into the front side of the middle frame 11, and the second single board 22 is inserted vertically into the rear side of the middle frame 11.

[0180] In one example, the first board 21 can be a service board, and the second board 22 can be a switching board. The back of both the first and second boards has a signal connector. After the first and second boards are inserted into the rack, their signal connectors connect. The back of both the first and second boards is the end facing the middle frame 11.

[0181] Referring again to Figure 5, the network device also includes a first manifold 31 and a second manifold 32. The manifold includes a supply pipe and a return pipe. Both are pipes. The supply pipe is called the supply pipe because it delivers the low-temperature coolant from the cooling capacity distribution equipment to the liquid cooling unit of the single-board unit, supplying the liquid to the unit. The return pipe is called the return pipe because it delivers the high-temperature coolant from the liquid cooling unit of the single-board unit back to the cooling capacity distribution equipment, recovering the liquid from the liquid cooling unit.

[0182] The manifold, also known as a liquid distributor, water distributor, water pipe, or liquid distributor, is used to distribute liquid to each panel, serving as a channel for the flow of hot and cold liquids.

[0183] For example, the first manifold 31 is used to supply low-temperature coolant to the first single board 21 and to output high-temperature coolant from the first single board 21, and the second manifold 32 is used to supply low-temperature coolant to the second single board 22 and to output high-temperature coolant from the second single board 22.

[0184] As shown in Figures 6 and 7, the arrangement of the first manifold 31 and the second manifold 32 in the cabinet is illustrated. Referring to Figures 6 and 7, both the first manifold 31 and the second manifold 32 include liquid-cooled quick connectors. The first manifold 31 is located on the first side (i.e., the rear side) of the middle frame 11, and the liquid-cooled quick connector 311 of the first manifold 31 faces the second side (i.e., the front side) of the middle frame 11. The second manifold 32 is located on the second side (i.e., the front side) of the middle frame 11, and the liquid-cooled quick connector 321 of the second manifold 32 faces the first side (i.e., the rear side) of the middle frame 11.

[0185] When the first single board 21 is inserted into the second side of the middle frame 11 and is fully inserted, the liquid cooling fast connector 211 of the first single board 21 is connected to the liquid cooling fast connector 311 of the first manifold 31. When the second single board 22 is inserted into the second side of the middle frame 11 and is fully inserted, the liquid cooling fast connector 221 of the second single board 22 is connected to the liquid cooling fast connector 321 of the second manifold 32.

[0186] As can be seen, after the first board 21 and the second board 22 are inserted into the rack, the liquid cooling quick connectors on the back of the first board 21 and the second board 22 are also connected to the liquid cooling quick connectors in the rack, realizing blind insertion of the liquid cooling quick connectors. This connection method is efficient and convenient, and can achieve rapid connection without precise alignment, thus improving operational efficiency.

[0187] It should be noted that the liquid-cooled quick connector of the first single board 21 and the liquid-cooled quick connector of the first manifold 31 are mutually matched, one as a male connector and the other as a female connector. As to which one is the male connector and which one is the female connector, this embodiment does not limit it. For example, the liquid-cooled quick connector of the first manifold 31 can be used as the male connector and the liquid-cooled quick connector on the first single board 21 can be used as the female connector.

[0188] Similarly, the liquid-cooled quick connector of the second single board 22 and the liquid-cooled quick connector of the second manifold 32 are matched with each other, one as a male connector and the other as a female connector. As to which one is the male connector and which one is the female connector, this embodiment does not limit it. For example, the liquid-cooled quick connector of the second manifold 32 can be used as the male connector and the liquid-cooled quick connector on the second single board 22 can be used as the female connector.

[0189] In one example, a network device typically includes multiple first boards 21 and multiple second boards 22. For instance, the first boards 21 are service boards, and there are 16 of them. The second boards 22 are switching boards, and there are 8 of them. Based on this, referring to Figure 6, the first crossover 31 includes multiple liquid-cooled quick-connect connectors 311, such as 16 liquid-cooled quick-connect connectors 311, with a one-to-one correspondence between the liquid-cooled quick-connect connectors 311 of the first crossover 31 and the liquid-cooled quick-connect connectors of the first boards 21. Referring to Figure 7, the second crossover 32 includes multiple liquid-cooled quick-connect connectors 321, such as 8 liquid-cooled quick-connect connectors 321, with a one-to-one correspondence between the liquid-cooled quick-connect connectors 321 of the second crossover 32 and the liquid-cooled quick-connect connectors of the second boards 22.

[0190] Since the first single board 21 is arranged horizontally on one side of the middle frame 11, when there are multiple first single boards 21, these multiple first single boards 21 are arranged sequentially along the height direction of the middle frame 11. Therefore, referring to Figure 6, the multiple liquid cooling fast plugs 311 of the first manifold 31 are distributed sequentially along the height direction of the middle frame 11. It can also be understood that the first manifold 31 is arranged vertically in the cabinet.

[0191] Similarly, since the second single board 22 is arranged vertically on one side of the middle frame 11, when there are multiple second single boards 22, these multiple second single boards 22 are arranged sequentially along the width direction of the middle frame 11. Therefore, referring to Figure 7, the multiple liquid cooling fast plugs 321 of the second manifold 32 are distributed sequentially along the width direction of the middle frame 11. It can also be understood that the second manifold 32 is arranged horizontally or laterally in the cabinet.

[0192] Along the width of the middle frame 11, and on the first side of the middle frame 11, the first manifold 31 can be vertically arranged at any position on the middle frame 11. For example, the first manifold 31 can be close to the side panel of the cabinet (such as the left or right side panel). Then, referring to Figure 5, the first manifold 31 is located on the first side of the middle frame 11 and on one side of all the second single boards 22, for example, on the left or right side of all the second single boards 22. Of course, the first manifold 31 can also be vertically arranged among multiple second single boards 22. For example, referring to Figure 5, along the width of the middle frame 11, that is, along the straight line of the x-axis, at least one second single board 22 is arranged on the left side of the first manifold 31, and at least one second single board 22 is also arranged on the right side of the first manifold 31.

[0193] Similarly, along the height of the middle frame 11 and on the second side of the middle frame 11, the second manifold 32 can be arranged laterally at any position on the middle frame 11. For example, referring to Figure 5, the second manifold 32 can be located on one side of all the first single boards 21, and closer to the bottom of the cabinet than all the first single boards 21. This arrangement of the second manifold 32 minimizes the impact of leaked coolant on the network equipment should a leak occur in the second manifold 32 or at the connection between the second manifold 32 and the second single board 22.

[0194] Of course, the second manifold 32 can also be arranged horizontally at the position near the top of the cabinet on the middle frame 11, or the second manifold 32 can be arranged horizontally between multiple first single boards 21. For example, as shown in Figure 5, at least one first single board 21 is arranged on the upper side of the second manifold 32 along the height direction of the middle frame 11, that is, along the straight line of the z-axis, and at least one first single board 21 is arranged on the lower side of the second manifold 32.

[0195] It should be noted that, since the first manifold 31 is used to supply low-temperature coolant to the first single-board 21 and to output high-temperature coolant from the first single-board 21, and the second manifold 32 is used to supply low-temperature coolant to the second single-board 22 and to output high-temperature coolant from the second single-board 22, as shown in Figure 6, the first manifold 31 includes a supply pipe 312 and a return pipe 313 fixed side by side. The liquid cooling quick connector 311 of the first manifold 31 includes a supply quick connector and a return quick connector, wherein the supply quick connector of the liquid cooling quick connector 311 is connected to the supply pipe 312, and the return quick connector is connected to the return pipe 313. Referring to Figure 7, the second manifold 32 also includes a supply pipe 322 and a return pipe 323 fixed side by side. The liquid cooling quick connector 321 of the second manifold 32 includes a supply quick connector and a return quick connector. The supply quick connector of the liquid cooling quick connector 321 is connected to the supply pipe 322, and the return quick connector is connected to the return pipe 323.

[0196] Referring to Figures 6 and 7, the supply pipe 312 of the first manifold 31 is connected to the main supply pipe 41, the return pipe 313 of the first manifold 31 is connected to the main return pipe 42, the supply pipe 322 of the second manifold 32 is connected to the main supply pipe 41, and the return pipe 323 of the second manifold 32 is connected to the main return pipe 42.

[0197] The supply pipe 312 of the first manifold 31 and the supply pipe 322 of the second manifold 32 are connected by a connecting member, and the return pipe 313 of the first manifold 31 and the return pipe 323 of the second manifold 32 are connected by a connecting member.

[0198] In some examples, referring to Figure 6, the supply pipe 312 of the first manifold 31 and the supply pipe 322 of the second manifold 32 are connected by a first tee pipe 51, and the return pipe 313 of the first manifold 31 and the return pipe 323 of the second manifold 32 are connected by a second tee pipe 52.

[0199] Both the first three-way pipe 51 and the second three-way pipe 52 include three flow channels, denoted as the first flow channel, the second flow channel, and the third flow channel. For example, for the first three-way pipe 51: the first flow channel is connected to the main supply pipe 41, the second flow channel is connected to the supply pipe 312 of the first manifold 31, and the third flow channel is connected to the supply pipe 322 of the second manifold 32. For the second three-way pipe 52: the first flow channel is connected to the main return pipe 42, the second flow channel is connected to the return pipe 313 of the first manifold 31, and the third flow channel is connected to the return pipe 323 of the second manifold 32.

[0200] In one example, the first tee pipe 51 can be used to adjust the flow rate ratio of the supply pipe 312 of the first manifold 31 and the supply pipe 322 of the second manifold 32. For example, the flow rate ratio of the supply pipe 312 of the first manifold 31 and the supply pipe 322 of the second manifold 32 is 2:1. The second tee pipe 52 can be used to adjust the flow rate ratio of the return pipe 313 of the first manifold 31 and the return pipe 323 of the second manifold 32. For example, the flow rate ratio of the return pipe 313 of the first manifold 31 and the return pipe 323 of the second manifold 32 is 2:1.

[0201] The principle behind the flow rate ratio adjustment achieved by the first three-way pipe 51 and the second three-way pipe 52 can be as follows: In the design of the first three-way pipe 51, the diameters of the second and third flow channels are different. For example, the diameter of the second flow channel is larger than the diameter of the third flow channel. Therefore, in application, the proportion of flow through the second flow channel to the supply pipe of the first manifold is greater than the proportion of flow through the third flow channel to the supply pipe of the second manifold. Similarly, in the design of the second three-way pipe, the diameters of the second and third flow channels are different. For example, the diameter of the second flow channel is larger than the diameter of the third flow channel. Therefore, in application, the proportion of flow from the return pipe of the first manifold to the second flow channel is greater than the proportion of flow from the return pipe of the second manifold to the third flow channel.

[0202] Another principle for adjusting the flow ratio using the first and second three-way pipes is that both the first and second three-way pipes include flow valves, which can also adjust the flow ratio in application. For example, if a flow valve is installed on both the first and second three-way pipes, the flow ratio between the supply pipe 322 of the first manifold 31 and the supply pipe 322 of the second manifold 32, as well as the flow ratio between the return pipe 323 of the first manifold 31 and the return pipe 323 of the second manifold 32, can be adjusted using these flow valves.

[0203] In application, if the heat dissipation requirement of the first single board 21 is higher than that of the second single board 22, the flow rate ratios of the supply pipe 312 and return pipe 313 of the first manifold 31 can be adjusted by using the flow valves on the first and second three-way pipes, ensuring that both flow rates are greater than the flow rates of the supply pipe 322 and return pipe 323 of the second manifold 32. Conversely, if the heat dissipation requirement of the first single board 21 is lower than that of the second single board 22, the flow rate ratios of the supply pipe 312 and return pipe 313 of the first manifold 31 can be adjusted by using the flow valves on the first and second three-way pipes, ensuring that both flow rates are less than the flow rates of the supply pipe 322 and return pipe 323 of the second manifold 32.

[0204] It should be noted that, referring to Figure 6, the first tee pipe 51 and the supply pipe 312 of the first manifold 31 are integrally formed, and the second tee pipe 52 and the return pipe 313 of the first manifold 31 are integrally formed. The supply pipe 322 of the second manifold 32 is connected to the supply pipe 312 of the first manifold 31 via a U-shaped bend (e.g., near the bottom), and the return pipe 323 of the second manifold 32 is connected to the return pipe 313 of the first manifold 31 via another U-shaped bend (e.g., near the bottom). Therefore, the diameter of the second flow channel opening of the first tee pipe 51 is the same as the diameter of the supply pipe 312 of the first manifold 31, and the diameter of the third flow channel opening of the first tee pipe 51 is the same as the diameter of the U-shaped bend. Similarly, the diameter of the second flow channel opening of the second tee pipe 52 is the same as the diameter of the return pipe 313 of the first manifold 31, and the diameter of the third flow channel opening of the second tee pipe 52 is the same as the diameter of the U-shaped bend. Generally, the diameters of the first flow channel openings of the first tee pipe 51 and the second flow channel openings of the second tee pipe 52 are the same, the diameters of the second flow channel openings of the first tee pipe 51 and the second flow channel openings of the second tee pipe 52 are the same, and the diameters of the third flow channel openings of the first tee pipe 51 and the third flow channel openings of the second tee pipe 52 are the same.

[0205] In another example, the first manifold 31 and the second manifold 32 can be connected via liquid-cooled quick-connect plugs. Figures 8 and 9 show schematic diagrams before and after the connection of the first manifold 31 and the second manifold 32. Referring to Figure 8, the first manifold 31 includes multiple liquid-cooled quick-connect plugs, such as 17 plugs, designated as liquid-cooled quick-connect plugs 311a to 311q, and the second manifold 32 includes multiple liquid-cooled quick-connect plugs, such as 9 plugs, designated as liquid-cooled quick-connect plugs 321a to 321i. Referring to Figure 9, the liquid cooling quick connector 311a of the first manifold 31 and the liquid cooling quick connector 321a of the second manifold 32 are connected. Then, the liquid cooling quick connectors 311b to 311q of the first manifold 31 are used to connect to the liquid cooling quick connector of the first board 21, and the liquid cooling quick connectors 321b to 321i of the second manifold 32 are used to connect to the liquid cooling quick connector of the second board 22.

[0206] Therefore, the liquid cooling fast connector 311a of the first manifold 31 and the liquid cooling fast connector 321a of the second manifold 32 are male and female liquid cooling fast connectors to each other, the liquid cooling fast connectors 311b to 311q of the first manifold 31 are male and female liquid cooling fast connectors to each other with the liquid cooling fast connector of the first single board 21, and the liquid cooling fast connectors 321b to 321i of the second manifold 32 are male and female liquid cooling fast connectors to each other with the liquid cooling fast connector of the second single board 22.

[0207] It should be noted that, referring to Figure 8, the liquid supply quick connector of the liquid cooling quick connector 311a of the first manifold 31 is connected to the liquid supply pipe 312, and the liquid return quick connector of the liquid cooling quick connector 311a is connected to the liquid return pipe 313. Continuing to refer to Figure 8, the liquid supply pipe 312 of the first manifold 31 can be connected to the main liquid supply pipe 41, and the liquid return pipe 313 of the first manifold 31 can be connected to the main liquid return pipe 42. Alternatively, the liquid supply pipe 312 of the first manifold 31 is the main liquid supply pipe 41, and the liquid return pipe 313 of the first manifold 31 is the main liquid return pipe 42.

[0208] It should be noted that the method of connecting the first manifold 31 and the second manifold 32 via a liquid-cooled quick-connect plug can be applied in scenarios where the heat dissipation requirements of the second board 22 are relatively low. This connection method is relatively simple, and there is no need for a U-shaped bend to connect the first manifold and the second manifold. The connection link is simple. Referring to Figure 6, in the scheme where the first manifold and the second manifold are connected via a connector, a U-shaped bend is required to connect the first manifold and the second manifold.

[0209] It should be noted that for the first manifold 31: the diameter of the liquid supply quick connectors of liquid cooling quick connectors 311b to 311q is generally the same, while the diameter of the liquid supply quick connector of liquid cooling quick connector 311a can be the same as or different from the diameter of the liquid supply quick connector of liquid cooling quick connector 311b; the diameter of the return quick connectors of liquid cooling quick connectors 311b to 311q is generally the same, while the diameter of the return quick connector of liquid cooling quick connector 311a can be the same as or different from the diameter of the return quick connector of liquid cooling quick connector 311b.

[0210] Similarly, for the second manifold 32: the diameter of the liquid supply quick connectors of liquid cooling quick connectors 321b to 321i is generally the same, while the diameter of the liquid supply quick connector of liquid cooling quick connector 321a can be the same as or different from the diameter of the liquid supply quick connector of liquid cooling quick connector 321b; the diameter of the return quick connectors of liquid cooling quick connectors 321b to 321i is generally the same, while the diameter of the return quick connector of liquid cooling quick connector 321a can be the same as or different from the diameter of the return quick connector of liquid cooling quick connector 321b.

[0211] It should be noted that the supply and return pipes of the first manifold 31 generally have the same diameter, and the supply and return pipes of the second manifold 32 generally have the same diameter. For the liquid cooling quick connector 311 of the first manifold 31: the diameter of the supply quick connector and the diameter of the return quick connector of the liquid cooling quick connector 311 are generally the same. Similarly, for the liquid cooling quick connector 321 of the second manifold 32: the diameter of the supply quick connector and the diameter of the return quick connector of the liquid cooling quick connector 321 are generally the same.

[0212] In one example, whether the first manifold 31 and the second manifold 32 are connected via a T-junction or a liquid-cooled quick-connect plug, both are connected to the liquid-cooling interface of the network device. The liquid-cooling interface includes a main supply port and a main return port. The liquid-cooling interface of the network device can be located at the bottom of the cabinet, as shown in Figure 5. Below the network device is typically a ring network piping system used to connect the cooling distribution equipment to the network device. Therefore, locating the liquid-cooling interface of the network device at the bottom of the cabinet facilitates connection to the ring network piping at the bottom of the cabinet.

[0213] For example, referring to Figure 6, in the following scheme: the liquid supply pipe 312 of the first manifold 31 and the liquid supply pipe 322 of the second manifold 32 are connected to the main liquid supply pipe 41 through the first tee pipe 51; the liquid return pipe 313 of the first manifold 31 and the liquid return pipe 323 of the second manifold 32 are connected to the main liquid return pipe 42 through the second tee pipe 52. Then, the main liquid supply pipe 41 can be connected to the main liquid supply port of the liquid cooling interface, and the main liquid return pipe 42 can be connected to the main liquid return port of the liquid cooling interface.

[0214] For example, referring to Figure 9, in the following scheme: the first manifold 31 and the second manifold 32 are connected by a liquid cooling quick connector. The liquid supply pipe 312 of the first manifold 31 is connected to the main liquid supply pipe 41, and the liquid return pipe 313 of the first manifold 31 is connected to the main liquid return pipe 42. Then, the main liquid supply pipe 41 can be connected to the main liquid supply port of the liquid cooling interface, and the main liquid return pipe 42 can be connected to the main liquid return port of the liquid cooling interface.

[0215] Alternatively, referring to Figure 9, in the following scheme: the first manifold 31 and the second manifold 32 are connected by a liquid cooling quick connector. The liquid supply pipe 312 of the first manifold 31 is the main liquid supply pipe, and the liquid return pipe 313 of the first manifold 31 is the main liquid return pipe. Then, the liquid supply pipe 312 of the first manifold 31 is connected to the main liquid supply port of the liquid cooling interface, and the liquid return pipe 313 of the first manifold 31 is connected to the main liquid return port of the liquid cooling interface.

[0216] In one example, since the first manifold 31 is arranged vertically in the cabinet, that is, the multiple liquid cooling quick connectors of the first manifold 31 are distributed along the height direction of the middle frame 11, in order to ensure that the low-temperature coolant flowing into the main liquid supply port of the liquid cooling interface flows smoothly to the top of the liquid supply pipe 312 of the first manifold 31, as shown in Figure 7, the top of the first manifold 31 has an exhaust pipe with an exhaust valve installed on it. The exhaust pipe is connected to the liquid supply pipe 312 of the first manifold 31. With the adjustment of the exhaust valve, the main liquid supply port of the liquid cooling interface can deliver the low-temperature coolant to the top of the liquid supply pipe 312 of the first manifold 31, so that the low-temperature coolant fills the liquid supply pipe 312 of the first manifold 31, and the liquid cooling quick connector 311 at the top of the first manifold 31 can also be distributed with low-temperature coolant.

[0217] In one example, the top of the return pipe 323 of the first manifold 31 may also have an exhaust pipe with an exhaust valve installed on it, and the exhaust pipe is connected to the return pipe 313 of the first manifold 31.

[0218] It should be noted that an exhaust valve connected to the supply pipe 312 can be arranged at the top of the first manifold 31, or an exhaust valve connected to the return pipe 313 can be arranged at the top of the first manifold 31, or an exhaust valve connected to both the supply pipe 312 and the return pipe 313 can be arranged at the top of the first manifold 31.

[0219] The above describes the features of the first manifold 31 and the second manifold 32. The following describes the arrangement of the liquid-cooled quick-connect plug on the first board 21 and the second board 22. The first board 21 will be used as the service board, and the second board 22 as the switching board.

[0220] Figure 10 shows a schematic diagram of the structure of the first single board 21. Referring to Figure 10, the first single board 21 includes a circuit board 210 and a liquid-cooled quick connector 211, multiple signal connectors 212, a power connector 213, multiple service chips (not shown in the figure, specifically between the first liquid cooling device 214a and the circuit board 210) and a liquid cooling device 214 arranged on the circuit board 210.

[0221] Referring to Figure 10, the liquid-cooled quick connector 211, multiple signal connectors 212 and power connectors 213 are all arranged on the back of the first single board 21 in a straight line. The back of the first single board 21 is opposite to the front panel. Referring to Figure 5, the back of the first single board 21 faces the middle frame 11.

[0222] To achieve water and electricity separation, multiple signal connectors 212 are arranged between the liquid cooling quick connector 211 and the power connector 213. The multiple signal connectors 212 are used to establish a communication connection with the second board 22.

[0223] Since the first board 21 is a service board, its front end (i.e., the panel) has a service interface. The service interface is used to insert optical modules for photoelectric and electro-optical conversion. The optical modules also need heat dissipation. Therefore, referring to Figure 10, the liquid cooling device 214 includes a first liquid cooling device 214a and a second liquid cooling device 214b. The first liquid cooling device 214a is used to absorb the heat of the service chip, and the second liquid cooling device 214b is used to absorb the heat of the optical modules inserted into the network equipment.

[0224] In one example, the first liquid cooling device 214a for cooling the business chip and the second liquid cooling device 214b for cooling the optical module are both connected to the liquid cooling quick connector 211 of the first board 21. For example, referring to FIG10, the liquid supply quick connector of the liquid cooling quick connector 211 is connected to the liquid inlet of the second liquid cooling device 214b through a pipeline, the liquid outlet of the second liquid cooling device 214b is connected to the liquid inlet of the first liquid cooling device 214a through a pipeline, and the liquid outlet of the first liquid cooling device 214a is connected to the liquid return quick connector of the liquid cooling quick connector 211 through a pipeline.

[0225] In the piping connection shown in Figure 10, the first liquid cooling device 214a and the second liquid cooling device 214b are connected in series. The coolant input to the liquid cooling fast connector 211 of the first board 21, although it first flows into the second liquid cooling device 214b and then out of the second liquid cooling device 214b before entering the first liquid cooling device 214a to dissipate heat from the service chip, still effectively cools the service chip. This is because the heat generated by the optical module is generally lower than the heat generated by the service chip. Therefore, although the coolant flowing out of the second liquid cooling device 214b absorbs heat from the optical module, its temperature remains lower than that of the service chip. Thus, when the coolant flows into the first liquid cooling device 214a, it can still absorb the heat generated by the service chip and dissipate heat from it.

[0226] In this way, the coolant flowing into the first board 21 first dissipates heat for the optical module and then continues to dissipate heat for the service chip. This helps to maximize the cooling capacity of the coolant, that is, it helps to make full use of the cooling capacity of the coolant and avoid waste of cooling capacity.

[0227] Of course, the first liquid cooling device 214a and the second liquid cooling device 214b can also be connected in parallel to the liquid cooling quick connector 211. For example, the liquid inlet of the first liquid cooling device 214a and the liquid inlet of the second liquid cooling device 214b are both connected to the liquid supply quick connector of the liquid cooling quick connector 211 through pipes, and the liquid outlet of the first liquid cooling device 214a and the liquid outlet of the second liquid cooling device 214b are both connected to the liquid return quick connector of the liquid cooling quick connector 211 through pipes. This connection method provides better heat dissipation for both the service chip and the optical module.

[0228] In one example, when a leak occurs in a pipe on a first board 21, the low hydraulic pressure at the leak point causes coolant from the external pipes of that first board 21 (such as coolant on other first boards 21 or coolant on other network devices) to rush to the leak point, resulting in a large accumulation of coolant on the leaking first board 21 and causing the board to burn.

[0229] Therefore, a first valve 61 is arranged on the pipeline between the liquid supply pipe 312 of the first manifold 31 and the liquid inlet of the liquid cooling device 214 of the first single plate 21. The first valve 61 is used to control the opening and closing of the pipeline. For example, the first valve 61 is used to close the pipeline when leakage occurs on the pipeline of the first single plate 21.

[0230] For example, the first valve 61 can be arranged on the first single board 21, specifically on the liquid supply line connected to the liquid supply quick plug of the liquid cooling quick plug 211 on the first single board 21. As shown in Figure 10, the first valve 61 is arranged on the line between the liquid supply quick plug of the liquid cooling quick plug 211 and the liquid inlet of the second liquid cooling device 214b.

[0231] The first valve 61 can be an electronic shut-off valve. An overflow rope is wound around the pipe of the first single board 21, and an overflow rope can also be placed on the circuit board of the first single board 21. The overflow rope is connected to the controller of the first single board 21. When coolant leakage occurs, the overflow rope can send a high level to the controller, and the controller can control the first valve 61 to shut off, so as to prevent external coolant from rushing to the leak and causing the first single board 21 to burn out.

[0232] Referring to Figure 10, if a leak occurs in the pipeline between the liquid cooling quick connector 211 of the first board 21 and the first valve 61, even if the first valve 61 is closed, the external coolant will still rush to the leak. Therefore, the closer the first valve 61 is to the liquid cooling quick connector 211, the better the leak prevention effect.

[0233] In another example, the first valve 61 can also be arranged outside the first single plate 21, for example, on the pipeline between the liquid supply pipe 312 of the first manifold 31 and the liquid cooling quick connector 311 of the first manifold 31. This solution can reduce the number of positions of the first valve 61 on the first single plate 21. The solution of arranging the first valve 61 outside the first single plate 21 will be described later.

[0234] In one example, to prevent the high-temperature coolant flowing out of the first single plate 21 from flowing back into the liquid cooling device of the first single plate 21, a second valve 62 is arranged on the pipeline between the return pipe 312 of the first manifold 31 and the outlet of the liquid cooling device of the first single plate 21. The second valve 62 is used to prevent the high-temperature coolant flowing out of the liquid cooling device from flowing back into the liquid cooling device.

[0235] For example, the second valve 62 is arranged on the first single plate 21, specifically on the return pipe connected to the return quick plug of the liquid cooling quick plug 211 of the first single plate 21. As shown in Figure 10, the second valve 62 is arranged on the first single plate 21, and on the pipe between the return quick plug of the liquid cooling quick plug 211 and the outlet of the first liquid cooling device 214a.

[0236] Specifically, the second valve 62 can be a one-way valve, and its conduction direction is from the liquid outlet of the first liquid cooling device 214a to the liquid return quick plug of the liquid cooling quick plug 211. For example, the second valve 62 is arranged between the liquid return quick plug of the liquid cooling quick plug 211 and the liquid outlet of the first liquid cooling device 214a, and is located closer to the liquid cooling quick plug 211.

[0237] In another example, the second valve 62 can also be arranged outside the first single plate 21, for example, on the pipeline between the return pipe 312 of the first manifold 31 and the liquid cooling quick connector 311 of the first manifold 31. This solution can reduce the number of positions of the second valve 62 on the first single plate 21. The solution of arranging the second valve 62 outside the first single plate 21 will be described later.

[0238] The above is a description of the features of the first single board 21. The features of the second single board 22 will be described below.

[0239] Figure 11 shows a schematic diagram of the second single board 22. Referring to Figure 11, the second single board 22 includes a circuit board 220, and a liquid-cooled quick connector 221, multiple signal connectors 222, a power connector 223, and multiple switching chips located on the circuit board 220. The liquid-cooled quick connector 221, multiple signal connectors 222, and power connectors 223 of the second single board 22 are arranged on the back end of the second single board 22 in a straight line. The back end of the second single board 22 is opposite to the front end of the second single board 22. Referring to Figure 5, the back end of the second single board 22 is the end facing the middle frame 11.

[0240] In one example, to achieve water and electricity separation, referring to Figure 11, multiple signal connectors 222 are located between the liquid-cooled quick connector 221 and the power connector 223 to isolate the liquid-cooled quick connector 221 and the power connector 223.

[0241] Since the second board 22 is arranged vertically in the cabinet, in order to reduce the impact on the second board 22 in case of liquid leakage, as shown in Figure 11, the liquid cooling fast connector 221 of the second board 22 is located at the bottom of the second board 22 compared to the multiple signal connectors 222.

[0242] In one example, the number of switching chips on the second board 22 is generally small, such as including one or two switching chips. Therefore, the number of liquid cooling devices 224 included in the second board 22 is also small. For example, it may include one liquid cooling device 224, which covers all the switching chips to dissipate heat for all the switching chips, or it may include two liquid cooling devices 224, which cover two switching chips respectively to dissipate heat for the two switching chips.

[0243] As shown in Figure 11, the second single board 22 includes two liquid cooling devices 224, referred to as the third liquid cooling device 224a and the fourth liquid cooling device 224b, respectively. These two liquid cooling devices are connected in series on the liquid cooling quick connector. That is, the liquid supply quick connector of the liquid cooling quick connector 221 of the second single board 22 is connected to the liquid inlet of the first liquid cooling device 224a through a pipeline, the liquid outlet of the first liquid cooling device 224a is connected to the liquid inlet of the second liquid cooling device 224b through a pipeline, and the liquid outlet of the second liquid cooling device 224b is connected to the liquid return quick connector of the liquid cooling quick connector 221 through a pipeline.

[0244] Of course, in the scheme where the second single board 22 includes multiple liquid cooling devices 224, these multiple liquid cooling devices 224 can also be connected in parallel to the liquid cooling quick connector 221. That is, the liquid inlets of the multiple liquid cooling devices 224 of the second single board 22 are all connected to the liquid supply quick connector of the liquid cooling quick connector 221 of the second single board 22 through pipes, and the liquid outlets of the multiple liquid cooling devices 224 of the second single board 22 are all connected to the liquid return quick connector of the liquid cooling quick connector 221 of the second single board 22 through pipes.

[0245] Similarly, to prevent external coolant from rushing towards the second panel 22 in case of a leak in the pipes on the second panel 22, the aforementioned first valve 61 is arranged on the pipe between the supply pipe of the second manifold 32 and the inlet of the liquid cooling device of the second panel 22. For example, the first valve 61 is arranged on the second panel 22, specifically in the pipe between the supply quick connector of the liquid cooling quick connector 221 and the inlet of the first liquid cooling device 224a, as shown in Figure 11.

[0246] Of course, the first valve 61 can also be arranged outside the second single plate 22, for example, on the pipeline between the liquid supply pipe 322 of the second manifold 32 and the liquid cooling quick connector 321 of the second manifold 32. This solution can reduce the number of positions of the first valve 61 on the second single plate 22. The solution of arranging the first valve 61 outside the second single plate 22 will be introduced later.

[0247] Similarly, to prevent the high-temperature coolant flowing out of the liquid cooling device of the second single plate 22 from flowing back into the liquid cooling device of the second single plate 22, the aforementioned second valve 62 is arranged on the pipeline between the return pipe 323 of the second manifold 32 and the outlet of the liquid cooling device of the second single plate 22. The second valve 62 can be a one-way valve, and the conduction direction is from the liquid cooling device of the second single plate 22 to the return pipe of the second manifold 32.

[0248] In one example, the second valve 62 may be arranged on the second panel 22. For example, referring to FIG11, the second valve 62 is arranged on the pipeline between the return quick plug of the liquid cooling quick plug 221 of the second panel 22 and the outlet of the second liquid cooling device 224b, and is as close as possible to the return quick plug of the liquid cooling quick plug 221.

[0249] Of course, the second valve 62 can also be arranged outside the second single plate 22, for example, on the pipeline between the return pipe 323 of the second manifold 32 and the liquid cooling quick connector 321 of the second manifold 32. This solution can reduce the number of positions of the second valve 62 on the second single plate 22. The solution of arranging the second valve 62 outside the second single plate 22 will be introduced later.

[0250] The following describes the arrangement of the first valve 61 and the second valve 62 outside the first single plate 21, and the arrangement of the first valve 61 and the second valve 62 outside the second single plate 22.

[0251] First, we introduce the arrangement of the first valve 61 and the second valve 62 outside the first single plate 21. Figure 12 shows a schematic diagram of the internal piping connections of the first manifold 31 and the second manifold 32. Referring to Figure 12(a), the first valve 61 is arranged in the first manifold 31, specifically on the pipe between the liquid supply pipe 312 and the liquid cooling quick connector 311 of the first manifold 31. Referring to Figure 12(b), the first valve 61 is arranged in the second manifold 32, specifically on the pipe between the liquid supply pipe 322 and the liquid cooling quick connector 321 of the second manifold 32.

[0252] Figures 13 and 14 show a schematic diagram of the first manifold 31. The first manifold 31 includes a piping module 314 and a converter module 315. The liquid supply pipe 312 and the liquid return pipe 313 of the first manifold 31 are both integrated in the piping module 314. The liquid-cooled quick connector 311, the first valve 61, and the second valve 62 of the first manifold 31 are all integrated in the converter module 315. Referring to Figure 13, the piping module 314 also includes a first liquid-cooled adapter 3141, and the converter module 315 also includes a second liquid-cooled adapter 3151. Referring to Figures 13 and 14, the first liquid-cooled adapter 3141 of the piping module 314 and the second liquid-cooled adapter 3151 of the converter module 315 are connected.

[0253] As shown in Figure 14, when the first manifold 31 is assembled in the cabinet, the piping module 314 can be installed on the rear side of the middle frame 11 first, and then the adapter module 315 can be inserted into the cabinet from the rear side of the middle frame 11. When it is fully inserted, the second liquid cooling adapter 3151 of the adapter module 315 is connected to the first liquid cooling adapter 3141 of the piping module 314. At this time, the liquid cooling quick connector 311 integrated on the adapter module 315 faces the front side of the middle frame 11 and is used to connect with the liquid cooling quick connector of the first single board 21.

[0254] It should be noted that, as shown in Figures 13 and 14, only the four liquid cooling quick connectors 311 of the first manifold 31 are illustrated, and Figure 12(a) only shows the connection relationship between one liquid cooling quick connector 311 and the supply pipe 312 and return pipe 313. Therefore, it can be inferred that the connection relationship between each liquid cooling quick connector 311 of the first manifold 31 and the supply pipe 312 and return pipe 313 can refer to Figure 12(a). That is, the connection relationship between any liquid cooling quick connector 311 in Figures 13 and 14 and the supply pipe 312 and return pipe 313 can refer to Figure 12(a).

[0255] Figures 15 and 16 show schematic diagrams of the second manifold 32. The second manifold 32 includes a piping module 324 and a converter module 325. The supply pipe 322 and return pipe 323 of the second manifold 32 are integrated into the piping module 324. The liquid-cooled quick-connect plug 321, the first valve 61, and the second valve 62 of the second manifold 32 are integrated into the converter module 325. Referring to Figure 15, the piping module 324 also includes a third liquid-cooled adapter 3241, and the converter module 325 also includes a fourth liquid-cooled adapter 3251. Referring to Figures 15 and 16, the third liquid-cooled adapter 3241 of the piping module 324 and the fourth liquid-cooled adapter 3251 of the converter module 325 are connected.

[0256] As shown in Figure 16, when the second manifold 32 is installed in the cabinet, the piping module 324 can be installed on the front side of the middle frame 11 first, and then the adapter module 325 can be inserted into the cabinet from the front side of the middle frame 11. When it is fully inserted, the fourth liquid cooling adapter 3251 of the adapter module 325 is connected to the third liquid cooling adapter 3241 of the piping module 324. At this time, the liquid cooling quick connector 321 integrated on the adapter module 325 faces the rear side of the middle frame 11 and is used to connect with the liquid cooling quick connector of the second single board 22.

[0257] It should be noted that, as shown in Figures 15 and 16, only the four liquid cooling quick connectors 311 of the first manifold 31 are illustrated, and Figure 12(b) only shows the connection relationship between one liquid cooling quick connector 321 and the supply pipe 322 and return pipe 323. Therefore, it can be inferred that the connection relationship between each liquid cooling quick connector 321 of the second manifold 32 and the supply pipe 322 and return pipe 323 can be referenced to Figure 12(b). That is, the connection relationship between any liquid cooling quick connector 321 in Figures 15 and 16 and the supply pipe 322 and return pipe 323 can be referenced to Figure 12(b).

[0258] The above describes the features of the first single board 21, the second single board 22, the first manifold 31, and the second manifold 32. The following describes the structural features of the liquid cooling quick connectors on the single boards (including the first single board 21 and the second single board 22) and the liquid cooling quick connectors on the manifolds (including the first manifold 31 and the second manifold 32).

[0259] Figures 17 and 18 show schematic diagrams of the fixed connector 7 and the movable connector 8 before and after connection. Since the first and second manifolds are fixed in the cabinet and cannot be moved, their liquid cooling fast connectors are called fixed liquid cooling fast connectors. The liquid cooling fast connectors on the first board 21 and the second board 22 are specifically floating liquid cooling fast connectors; therefore, they are called movable liquid cooling fast connectors or floating liquid cooling fast connectors. Thus, the fixed connector 7 shown in Figures 17 and 18 specifically belongs to the liquid supply fast connector or liquid return fast connector of the liquid cooling fast connector of the first manifold 31, or specifically belongs to the liquid supply fast connector or liquid return fast connector of the liquid cooling fast connector of the second manifold 32. The movable pipe connector 8 shown in Figures 17 and 18 specifically belongs to the liquid supply quick connector or liquid return quick connector of the liquid cooling quick connector of the first single board 21, or specifically belongs to the liquid supply quick connector or liquid return quick connector of the liquid cooling quick connector of the second single board 22.

[0260] For example, if the fixed pipe connector 7 is the liquid supply quick connector of the liquid cooling quick connector of the first manifold 31, then the movable pipe connector 8 is the liquid supply quick connector of the liquid cooling quick connector of the first single board 21, except that these two liquid supply quick connectors are a male liquid supply quick connector and a female liquid supply quick connector.

[0261] For example, if the fixed pipe connector 7 is the return quick connector of the liquid cooling quick connector of the first manifold 31, then the movable pipe connector 8 is the return quick connector of the liquid cooling quick connector of the first single board 21, except that these two return quick connectors are one male and one female.

[0262] For example, if the fixed pipe connector 7 is the liquid supply quick connector of the liquid cooling quick connector of the second manifold 32, then the movable pipe connector 8 is the liquid supply quick connector of the liquid cooling quick connector of the second single board 22, except that these two liquid supply quick connectors are a male liquid supply quick connector and a female liquid supply quick connector.

[0263] For example, if the fixed pipe connector 7 is the return quick connector of the liquid cooling quick connector of the second manifold 32, then the movable pipe connector 8 is the return quick connector of the liquid cooling quick connector of the second single board 22, except that these two return quick connectors are one male and one female.

[0264] The features of the fixed pipe joint 7 and the movable pipe joint 8 shown in Figures 17 and 18 are described below.

[0265] Referring to Figure 17, the fixed pipe connector 7 includes a movable valve core 73 and a fixed valve cylinder 72. The movable valve core 73 is located within the fixed valve cylinder 72 and is used to move axially within the fixed valve cylinder 72 to allow or shut off the coolant flow. For example, referring to Figure 17, with the movable valve core 73 located within the fixed valve cylinder 72, one end of the valve seat 71 of the fixed pipe connector 7 is fitted over the fixed valve cylinder 72 and threadedly connected to the fixed valve cylinder 72. The other end of the valve seat 71 is used to connect to the supply or return pipe of the manifold. Continuing to refer to Figure 17, a compressed spring is arranged between the movable valve core 73 and the valve seat 71. Referring to Figure 17, when the movable valve core 73 is in the first position, it blocks the fixed valve cylinder 72, cutting off the coolant supply. At this time, the movable valve core 73 is furthest from the valve seat 71, and the spring between them is compressed, ensuring the valve core 73 tightly blocks the fixed valve cylinder 72. Referring to Figure 18, when the movable valve core 73 is in the second position, it no longer blocks the fixed valve cylinder 72, allowing coolant to flow. At this time, the movable valve core 73 is closest to the valve seat 71, and the spring between them is compressed. The spring force is greater than when the valve core 73 is in the first position, facilitating the subsequent return of the movable valve core 73 to the position where it blocks the fixed valve cylinder 72.

[0266] Referring to Figure 17, the movable pipe connector 8 includes a fixed valve core 83 and a movable valve cylinder 82. The movable valve cylinder 82 is sleeved outside the fixed valve core 83 and is used to move axially along the fixed valve core 83 to allow the coolant to flow or shut off. For example, referring to Figure 17, the fixed valve core 83 is located in the movable valve cylinder 82, which is located in a sleeve 84. The valve pipe 81 is connected to the sleeve 84, such as by a threaded connection. Continuing to refer to Figure 17, a compressed spring is arranged between the movable valve cylinder 82 and the valve pipe 81. The end of the valve pipe 81 away from the fixed valve core 83 is used to connect to the inlet or outlet of the liquid cooling device on the single board. Referring to Figure 17, when the movable valve cylinder 82 is in the first position, the fixed valve core 83 blocks the movable valve cylinder 82, cutting off the coolant. At this time, the movable valve cylinder 82 is closest to the outer port of the sleeve 84 (i.e., the port furthest from the valve tube 81), and the spring between the movable valve cylinder 82 and the valve tube 81 is compressed, causing the fixed valve core 83 to tightly block the movable valve cylinder 82. Referring to Figure 18, when the movable valve cylinder 82 is in the second position, the fixed valve core 83 no longer blocks the movable valve cylinder 82, allowing the coolant to flow. At this time, the movable valve cylinder 82 is furthest from the outer port of the sleeve 84, and the spring between the movable valve cylinder 82 and the valve tube 81 is compressed. The spring force is greater than the spring force when the movable valve cylinder 82 is in the first position, so that the movable valve cylinder 82 can be reset to be blocked by the fixed valve core 83 later.

[0267] As shown in Figure 17 and with reference to Figure 18, when the movable pipe joint 8 is connected to the fixed pipe joint 7, as the movable pipe joint 8 is inserted into the fixed pipe joint 7, the sleeve 84 gradually covers the outside of the fixed valve cylinder 72. As the movable pipe joint 8 continues to move, the protrusion on the inner wall of the fixed valve cylinder 72 pushes the movable valve cylinder 82 to move, and the fixed valve core 83 pushes the movable valve core 73 to move. The movable valve cylinder 82 and the movable valve core 73 move in opposite directions. When the movable pipe joint 8 moves to the bottom, the movable valve cylinder 82 and the movable valve core 73 stop moving. At this time, the movable valve cylinder 82 is in the second position, the movable valve core 73 is in the second position, and the movable pipe joint 8 and the fixed pipe joint 7 are connected. At this time, the coolant can flow between the movable pipe joint 8 and the fixed pipe joint 7.

[0268] Referring to Figure 17, when the movable pipe connector 8 and the fixed pipe connector 7 are separated, a sealing ring 9 is arranged between the fixed valve core 83 and the movable valve cylinder 82, and a sealing ring is arranged between the movable valve cylinder 82 and the valve pipe 81 to prevent liquid leakage. Continuing to refer to Figure 17, when the movable pipe connector 8 and the fixed pipe connector 7 are separated, a sealing ring 9 is arranged between the movable valve core 73 and the fixed valve cylinder 72, and a sealing ring 9 is arranged between the fixed valve cylinder 72 and the valve seat 71 to prevent liquid leakage. Referring to Figure 18, after the movable pipe connector 8 and the fixed pipe connector 7 are connected, the fixed valve cylinder 72 is fitted over the movable valve cylinder 82, and a sealing ring 9 is arranged between the fixed valve cylinder 72 and the movable valve cylinder 82. Multiple sealing rings 9 are arranged; for example, two sealing rings 9 are arranged to achieve a double-layer seal, which helps prevent liquid leakage.

[0269] It should be noted that the threaded connection between the valve seat 71 and the fixed valve cylinder 72, compared to a riveted connection, enhances the reliability of the connection between the valve seat 71 and the fixed valve cylinder 72. Similarly, the threaded connection between the valve tube 81 and the sleeve 84, compared to a riveted connection, enhances the reliability of the connection between the valve tube 81 and the sleeve 84.

[0270] Figure 19 shows a schematic diagram of the movable valve core 73. Since the movable valve core 73 is movable within the fixed valve cylinder 72, as shown in Figures 17 and 18, there is no fixed connection between the movable valve core 73 and the valve seat 71. Therefore, as shown in Figure 19, the movable valve core 73 includes a shut-off section 731 and a guide section 732. The shut-off section 731 is used to block the fixed valve cylinder 72 when the movable valve core 73 is in the first position. The guide section 732 has a guide hole 7321, which allows coolant to flow through the guide hole 7321 when the movable valve core 73 is in the second position, thus enabling coolant flow. The shut-off section 731 and the guide section 732 are directly connected, without a valve stem connection between them.

[0271] Figure 20 shows a schematic diagram of the fixed valve core 83. Since the fixed valve core 83 is immovable, it is fixedly connected to the valve tube 81, as shown in Figures 17 and 18. For example, the fixed valve core 83 and the valve tube 81 are integrally formed. Referring to Figure 20, the fixed valve core 83 includes not only a shut-off portion 831 and a guide portion 832, but also a valve stem portion 833 located between the shut-off portion 831 and the guide portion 832. The outer diameter of the valve stem portion 833 is smaller than the outer diameter of the shut-off portion 831, and also smaller than the outer diameter of the guide portion 832. The shut-off portion 831 of the fixed valve core 83 is used to block the movable valve tube 81 when the movable valve cylinder 82 is in the first position. The valve stem portion 833 and the flow guide portion 832 are used to allow coolant to flow through the valve stem portion 833 and the flow guide hole 8321 of the flow guide portion 832 when the movable valve cylinder 82 is in the second position, thereby achieving coolant conduction. If the fixed valve core 83 does not include the valve stem portion 833, then because the outer diameter of the shut-off portion 831 of the fixed valve core 83 is similar to the outer diameter of the flow guide portion 832 of the fixed valve core 83, the flowability of the fixed valve core 83 will be poor, or even non-conducting, when the movable valve cylinder 82 is in the second position.

[0272] It should be noted that the fixed valve core 83 with valve stem portion 833 is arranged in the movable pipe joint 8. Compared with the arrangement in the fixed pipe joint 7, this is beneficial to protect the valve stem portion 833, making the valve stem portion 833 less prone to deformation. This helps to ensure the sealing performance of the fixed valve core 83 and reduce the probability of leakage.

[0273] The reasons are as follows:

[0274] A fixed valve core 83 with a valve stem portion 833 is arranged on a movable pipe joint 8. The movable pipe joint 8 is a liquid-cooled quick connector on a single board. Specifically, the liquid-cooled quick connector on the single board is a floating liquid-cooled quick connector. When the floating liquid-cooled quick connector on the single board is connected to the liquid-cooled quick connector on the manifold, the movable pipe joint 8 has a certain amount of room for movement in the circumferential direction. Thus, the valve stem portion 833 inside the movable pipe joint 8 can also move, thereby avoiding deformation of the valve stem portion 833 caused by hard collision.

[0275] If a fixed valve core with a valve stem is located at a fixed pipe joint 7, and the fixed pipe joint 7 is a liquid-cooled quick-connect plug on the manifold, while the liquid-cooled quick-connect plug on the manifold is not a floating liquid-cooled quick-connect plug, then when the floating liquid-cooled quick-connect plug on the single board mates with the liquid-cooled quick-connect plug on the manifold, the fixed pipe joint 7 will remain stationary, and the valve stem within the fixed pipe joint 7 will also remain stationary. Therefore, the valve stem is prone to deformation during a hard impact. Once the valve stem deforms, as shown in Figure 17, it will affect the sealing performance of the fixed pipe joint 7.

[0276] Additionally, referring to Figure 19, the flow guide portion 732 of the movable valve core 73 has multiple flow guide holes 7321, for example, including four flow guide holes 7321. Compared to including three flow guide holes, the flow area of ​​the movable valve core can be increased by 116%.

[0277] Referring to Figures 19 and 20, the diameters of the guide holes 7321 of the movable valve core 73 and the guide holes 8321 of the fixed valve core 83 are relatively large, which helps to increase the flow area and reduce the flow resistance.

[0278] In this embodiment, liquid-cooled quick-connect plugs are arranged on both sides of the mid-frame of the network device, and liquid-cooled quick-connect plugs are arranged on the back of both the first and second single boards. After the first and second single boards are inserted into the cabinet, not only is communication between the first and second single boards completed, but the liquid-cooled quick-connect plugs of the first single board are also connected to the liquid-cooled quick-connect plugs in the cabinet, and the liquid-cooled quick-connect plugs of the second single board are also connected to the liquid-cooled quick-connect plugs in the cabinet. This enables blind insertion of the liquid-cooled quick-connect plugs of the first and second single boards. This connection method is efficient and convenient, and can achieve rapid connection of liquid cooling pipelines without the need for precise alignment, thus improving operational efficiency.

[0279] This embodiment also provides a frame structure that excludes the first and second single boards, but includes a cabinet, a first manifold, and a second manifold. The frame structure includes a cabinet, a first manifold 31, and a second manifold 32. The cabinet has a middle frame 11. Both the first manifold 31 and the second manifold 32 include liquid-cooled quick-connect connectors. The first manifold 31 is located on the first side of the middle frame 11, and the liquid-cooled quick-connect connector of the first manifold 31 faces the second side of the middle frame 11. The first side and the second side are two opposite sides of the middle frame 11. The second manifold 32 is located on the second side of the middle frame 11, and the liquid-cooled quick-connect connector of the second manifold 32 faces the first side of the middle frame 11. The first manifold 31 and the second manifold 32 are connected by a connecting member. For details, please refer to the above description, which will not be repeated here.

[0280] This embodiment also provides a single board that integrates a signal connector and a liquid-cooled quick-connect plug, which are located on the back end of the single board. Specifically, this single board can be either the first single board or the second single board described above; further details are omitted here.

[0281] This embodiment also provides a liquid cooling system. Referring to Figure 1, the liquid cooling system includes a cooling device 300, a cooling capacity distribution device 200, and the aforementioned network device 100. The cooling device 300 is generally located outdoors, while the cooling capacity distribution device 200 and the network device 100 are generally located indoors. The primary side of the cooling capacity distribution device 200 is connected to the cooling device 300 via a pipeline to form a primary-side circulation, and the secondary side of the cooling capacity distribution device 200 is connected to the network device 100 via a pipeline to form a secondary-side circulation. For details, please refer to the above description; further elaboration is unnecessary.

[0282] The terminology used in the embodiments section of this application is for explaining the embodiments of this application only and is not intended to limit this application. Unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are only used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but indicate the presence of at least one. The terms "comprising," "including," etc., mean that the elements or objects preceding "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are only used to indicate relative positional relationships, and the relative positional relationship may also change accordingly when the absolute position of the described object changes. "A plurality of" means two or more, unless otherwise expressly defined.

[0283] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A network device, characterized in that, Includes a cabinet, a first single board (21), a second single board (22), a first manifold (31), and a second manifold (32); The cabinet has a middle frame (11). The first manifold (31) and the second manifold (32) both include liquid cooling fast connectors. The first manifold (31) is located on the first side of the middle frame (11) and the liquid cooling fast connector faces the second side of the middle frame (11). The second manifold (32) is located on the second side of the middle frame (11) and the liquid cooling fast connector faces the first side of the middle frame (11). The first manifold (31) and the second manifold (32) are connected by a connector. The first side and the second side are two opposite sides of the middle frame (11). Both the first single board (21) and the second single board (22) have liquid cooling fast connectors on their back ends. The first single board (21) is located on the second side of the middle frame (11), and the second single board (22) is located on the first side of the middle frame (11). The first single board (21) and the second single board (22) are perpendicular to each other. The liquid cooling fast connector of the first single board (21) is connected to the liquid cooling fast connector of the first manifold (31), and the liquid cooling fast connector of the second single board (22) is connected to the liquid cooling fast connector of the second manifold (32).

2. The network device according to claim 1, characterized in that, The number of the second single plate (22) is one or more, and the first manifold (31) is located on one side of all the second single plates (22).

3. The network device according to claim 1 or 2, characterized in that, The number of the first single plate (21) is one or more, and the second manifold (32) is located on one side of all the first single plates (21).

4. The network device according to any one of claims 1 to 3, characterized in that, The cabinet includes a front door and a rear door that are positioned opposite each other. The first side of the middle frame (11) faces the rear door of the cabinet, and the second side of the middle frame (11) faces the front door of the cabinet. The first panel (21) is horizontally located between the second side of the middle frame (11) and the front door of the cabinet, and the second panel (22) is vertically located between the first side of the middle frame and the rear door of the cabinet, or... The first panel (21) is vertically located between the second side of the middle frame (11) and the front door of the cabinet, and the second panel (22) is horizontally located between the first side of the middle frame (11) and the rear door of the cabinet.

5. The network device according to any one of claims 1 to 4, characterized in that, Both the first manifold (31) and the second manifold (32) include a supply pipe and a return pipe fixed side by side; The liquid supply quick plug of the liquid cooling quick plug of the first manifold (31) is connected to the liquid supply pipe of the first manifold (31), and the liquid return quick plug of the liquid cooling quick plug of the first manifold (31) is connected to the liquid return pipe of the first manifold (31). The liquid supply quick plug of the liquid cooling quick plug of the second manifold (32) is connected to the liquid supply pipe of the second manifold (32), and the liquid return quick plug of the liquid cooling quick plug of the second manifold (32) is connected to the liquid return pipe of the second manifold (32). The supply pipe of the first manifold (31) and the supply pipe of the second manifold (32) are connected by a connector, and the return pipe of the first manifold (31) and the return pipe of the second manifold (32) are connected by a connector.

6. The network device according to claim 5, characterized in that, The liquid supply pipe of the first manifold (31) and the liquid supply pipe of the second manifold (32) are connected by a first tee pipe (51), which is configured to adjust the flow rate ratio between the liquid supply pipe of the first manifold (31) and the liquid supply pipe of the second manifold (32). The return pipe of the first manifold (31) and the return pipe of the second manifold (32) are connected by a second tee pipe (52), which is configured to adjust the flow rate ratio between the return pipe of the first manifold (31) and the return pipe of the second manifold (32).

7. The network device according to claim 5, characterized in that, The liquid supply pipe of the first manifold (31) and the liquid supply pipe of the second manifold (32) are connected by a liquid cooling quick connector, and the liquid return pipe of the first manifold (31) and the liquid return pipe of the second manifold (32) are connected by a liquid cooling quick connector.

8. The network device according to any one of claims 1 to 7, characterized in that, The back ends of both the first board (21) and the second board (22) also include a signal connector and a power connector; The signal connector of the first board (21) is arranged between the power connector of the first board (21) and the liquid cooling fast connector of the first board (21); The signal connector of the second board (22) is arranged between the power connector of the second board (22) and the liquid cooling fast connector of the second board (22).

9. The network device according to any one of claims 1 to 8, characterized in that, Both the first manifold (31) and the second manifold (32) include liquid supply pipes, and both the first single plate (21) and the second single plate (22) include liquid cooling devices for liquid cooling heat dissipation. A first valve (61) is provided on the pipeline between the liquid supply pipe of the first manifold (31) and the liquid inlet of the liquid cooling device of the first single plate (21), and on the pipeline between the liquid supply pipe of the second manifold (32) and the liquid inlet of the liquid cooling device of the second single plate (22). The first valve (61) is configured to control the opening and closing of the pipeline.

10. The network device according to claim 9, characterized in that, The first valve (61) is arranged on the first single board (21) and on the pipeline between the liquid cooling fast plug of the first single board (21) and the liquid cooling device of the first single board (21); The first valve (61) is arranged on the second board (22) and on the pipeline between the liquid cooling fast plug of the second board (22) and the liquid cooling device of the first board (21).

11. The network device according to claim 9, characterized in that, The first valve (61) is arranged in the first manifold (31) and on the pipeline between the liquid supply pipe of the first manifold (31) and the liquid cooling fast plug of the first manifold (31); The first valve (61) is arranged in the second manifold (32) and on the pipeline between the liquid supply pipe of the second manifold (32) and the liquid cooling fast plug of the second manifold (32).

12. The network device according to claim 11, characterized in that, The first manifold (31) includes a pipeline module and a converter module. Both the pipeline module and the converter module are located on the first side of the middle frame (11). The liquid cooling fast plug of the first manifold (31) is disposed on the side of the converter module facing the middle frame (11). The liquid supply pipe and the liquid return pipe of the first manifold (31) are disposed in the pipeline module. The pipeline module has a liquid-cooled adapter for communicating with the supply pipe and return pipe of the first manifold (31). The adapter module has a liquid-cooled adapter for communicating with the liquid-cooled quick plug of the first manifold (31). The liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the first manifold (31) are connected by a pipeline. The first valve (61) is disposed in the adapter module and on the pipeline between the liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the first manifold (31).

13. The network device according to claim 11, characterized in that, The second manifold (32) includes a pipeline module and a converter module. Both the pipeline module and the converter module are located on the second side of the middle frame (11). The liquid cooling fast plug of the second manifold (32) is disposed on the side of the converter module facing the middle frame (11). The liquid supply pipe and the liquid return pipe of the second manifold (32) are disposed in the pipeline module. The pipeline module has a liquid-cooled adapter for communicating with the supply pipe and return pipe of the second manifold (32). The adapter module has a liquid-cooled adapter for communicating with the liquid-cooled quick plug of the second manifold (32). The liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the second manifold (32) are connected by a pipeline. The first valve (61) is provided in the adapter module and on the pipeline between the liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the second manifold (32).

14. The network device according to any one of claims 1 to 13, characterized in that, Both the first manifold (31) and the second manifold (32) include a return pipe, and both the first single plate (21) and the second single plate (22) include a liquid cooling device for liquid cooling heat dissipation. A second valve (62) is provided on the pipeline between the return pipe of the first manifold (31) and the liquid cooling device of the first single plate (21), and on the pipeline between the return pipe of the second manifold (32) and the liquid cooling device of the second single plate (22). The second valve (62) is configured to block the backflow of coolant.

15. The network device according to claim 14, characterized in that, On the first single board (21), and on the pipeline between the liquid cooling fast plug of the first single board (21) and the liquid cooling device of the first single board (21), the second valve (62) is arranged; The second valve (62) is arranged on the second single board (22) and on the pipeline between the liquid cooling fast plug of the second single board (22) and the liquid cooling device of the second single board (22).

16. The network device according to claim 14, characterized in that, A second valve (62) is arranged on the pipeline between the return pipe of the first manifold (31) and the liquid cooling fast plug of the first manifold (31); The second valve (62) is arranged on the pipeline between the return pipe of the second manifold (32) and the liquid cooling fast plug of the second manifold (32).

17. The network device according to any one of claims 1 to 16, characterized in that, The first board (21) is a service board. The liquid cooling device on the first board (21) includes a first liquid cooling device (214a) and a second liquid cooling device (214b). The first liquid cooling device (214a) is configured to absorb the heat of the service chip of the first board (21), and the second liquid cooling device (214b) is configured to absorb the heat of the optical module inserted into the first board (21). The liquid supply quick plug of the liquid cooling quick plug of the first single board (21) is connected to the liquid inlet of the second liquid cooling device (214b) through a pipeline. The liquid outlet of the second liquid cooling device (214b) is connected to the liquid inlet of the first liquid cooling device (214a) through a pipeline. The liquid outlet of the first liquid cooling device (214a) is connected to the liquid return quick plug of the liquid cooling quick plug of the first single board (21) through a pipeline.

18. The network device according to any one of claims 1 to 17, characterized in that, The liquid cooling quick connectors of the first manifold (31) and the second manifold (32) include a movable valve core (73) and a fixed valve cylinder (72). The movable valve core (73) is located in the fixed valve cylinder (72) and is used to move axially in the fixed valve cylinder (72) to allow the coolant to be turned on or off. The liquid cooling fast connectors of the first single board (21) and the second single board (22) include a fixed valve core (83) and a movable valve cylinder (82). The movable valve cylinder (82) is sleeved outside the fixed valve core (83) and is used to move along the axial direction of the fixed valve core (83) to allow the coolant to be turned on or off.

19. A frame structure including a manifold, characterized in that, The frame structure includes a cabinet, a first manifold (31) and a second manifold (32). The cabinet has a middle frame (11). Both the first manifold (31) and the second manifold (32) include liquid-cooled quick connectors. The first manifold (31) is located on the first side of the middle frame (11), and the liquid cooling fast plug of the first manifold (31) faces the second side of the middle frame (11). The first side and the second side are two opposite sides of the middle frame (11). The second manifold (32) is located on the second side of the middle frame (11), and the liquid-cooled fast plug of the second manifold (32) faces the first side of the middle frame (11); The first manifold (31) and the second manifold (32) are connected by a connecting member.

20. The frame structure according to claim 19, characterized in that, In the cabinet, and on the first side of the middle frame (11), there is at least one second slot for inserting a second single board, and the first manifold (31) is located on one side of all the second slots.

21. The frame structure according to claim 19 or 20, characterized in that, In the cabinet, and on the second side of the middle frame (11), there is at least one first slot for inserting the first single board, and the second manifold (32) is located on one side of all the first slots.

22. The frame structure according to any one of claims 19 to 21, characterized in that, Both the first manifold (31) and the second manifold (32) include a supply pipe and a return pipe fixed side by side; The liquid supply quick plug of the liquid cooling quick plug of the first manifold (31) is connected to the liquid supply pipe of the first manifold (31), and the liquid return quick plug of the liquid cooling quick plug of the first manifold (31) is connected to the liquid return pipe of the first manifold (31). The liquid supply quick plug of the liquid cooling quick plug of the second manifold (32) is connected to the liquid supply pipe of the second manifold (32), and the liquid return quick plug of the liquid cooling quick plug of the second manifold (32) is connected to the liquid return pipe of the second manifold (32). The supply pipe of the first manifold (31) and the supply pipe of the second manifold (32) are connected by a connector, and the return pipe of the first manifold (31) and the return pipe of the second manifold (32) are connected by a connector.

23. The frame structure according to claim 22, characterized in that, The liquid supply pipe of the first manifold (31) and the liquid supply pipe of the second manifold (32) are connected by a first tee pipe (51), which is configured to adjust the flow rate ratio between the liquid supply pipe of the first manifold (31) and the liquid supply pipe of the second manifold (32). The return pipe of the first manifold (31) and the return pipe of the second manifold (32) are connected by a second tee pipe (52), which is configured to adjust the flow rate ratio between the return pipe of the first manifold (31) and the return pipe of the second manifold (32).

24. The frame structure according to claim 22, characterized in that, The liquid supply pipe of the first manifold (31) and the liquid supply pipe of the second manifold (32) are connected by a liquid cooling quick connector, and the liquid return pipe of the first manifold (31) and the liquid return pipe of the second manifold (32) are connected by a liquid cooling quick connector.

25. The frame structure according to any one of claims 19 to 24, characterized in that, A first valve (61) is arranged in the first manifold (31) and on the pipeline between the liquid supply pipe of the first manifold (31) and the liquid cooling fast plug of the first manifold (31); A first valve (61) is arranged in the second manifold (32) and on the pipeline between the liquid supply pipe of the second manifold (32) and the liquid cooling fast plug of the second manifold (32); The first valve (61) is configured to control the opening and closing of the pipeline in which it is located.

26. The frame structure according to claim 25, characterized in that, The first manifold (31) includes a pipeline module and a converter module. Both the pipeline module and the converter module are located on the first side of the middle frame (11). The liquid cooling fast plug of the first manifold (31) is disposed on the side of the converter module facing the middle frame (11). The liquid supply pipe and the liquid return pipe of the first manifold (31) are disposed in the pipeline module. The pipeline module has a liquid-cooled adapter for communicating with the supply pipe and return pipe of the first manifold (31). The adapter module has a liquid-cooled adapter for communicating with the liquid-cooled quick plug of the first manifold (31). The liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the first manifold (31) are connected by a pipeline. The first valve (61) is disposed in the adapter module and on the pipeline between the liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the first manifold (31).

27. The frame structure according to claim 25, characterized in that, The second manifold (32) includes a pipeline module and a converter module. Both the pipeline module and the converter module are located on the second side of the middle frame (11). The liquid cooling fast plug of the second manifold (32) is disposed on the side of the converter module facing the middle frame (11). The liquid supply pipe and the liquid return pipe of the second manifold (32) are disposed in the pipeline module. The pipeline module has a liquid-cooled adapter for communicating with the supply pipe and return pipe of the second manifold (32). The adapter module has a liquid-cooled adapter for communicating with the liquid-cooled quick plug of the second manifold (32). The liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the second manifold (32) are connected by a pipeline. The first valve (61) is provided in the adapter module and on the pipeline between the liquid-cooled adapter of the adapter module and the liquid-cooled quick plug of the second manifold (32).

28. The frame structure according to any one of claims 19 to 27, characterized in that, A second valve (62) is arranged on the pipeline between the return pipe of the first manifold (31) and the liquid cooling fast plug of the first manifold (31); A second valve (62) is arranged on the pipeline between the return pipe of the second manifold (32) and the liquid cooling fast plug of the second manifold (32); The second valve (62) is configured to block the backflow of coolant.

29. The frame structure according to any one of claims 19 to 28, characterized in that, The liquid cooling quick connectors of the first manifold (31) and the second manifold (32) include a movable valve core (73) and a fixed valve cylinder (72). The movable valve core (73) is located in the fixed valve cylinder (72) and is used to move axially in the fixed valve cylinder (72) to allow the coolant to be turned on or off.

30. A single-board unit, characterized in that, The back end of the single board has a liquid cooling quick connector, which is used to connect with the liquid cooling quick connector in the rack when the single board is inserted into the rack. The back end of the single board is the end that extends into the rack when the single board is inserted into the rack.

31. The single board according to claim 30, characterized in that, The back of the board also has a signal connector and a power connector, and the liquid-cooled fast connector of the board is located between the signal connector and the power connector.

32. The single board according to claim 30 or 31, characterized in that, On the single board, and on the pipeline between the liquid cooling fast plug of the single board and the liquid cooling device of the single board, a first valve (61) is arranged, wherein the first valve (61) is configured to control the opening and closing of the pipeline.

33. The single board according to any one of claims 30 to 32, characterized in that, On the single board, and on the pipeline between the liquid cooling fast plug of the single board and the liquid cooling device of the single board, a second valve (62) is arranged, wherein the second valve (62) is configured to block the backflow of coolant.

34. The single board according to any one of claims 30 to 33, characterized in that, The single board is a service board, and the liquid cooling device on the single board includes a first liquid cooling device (214a) and a second liquid cooling device (214b). The first liquid cooling device (214a) is configured to absorb the heat of the service chip of the single board, and the second liquid cooling device (214b) is configured to absorb the heat of the optical module inserted into the single board. The liquid supply quick connector of the liquid cooling quick connector of the single board is connected to the liquid inlet of the second liquid cooling device (214b) through a pipeline, the liquid outlet of the second liquid cooling device (214b) is connected to the liquid inlet of the first liquid cooling device (214a) through a pipeline, and the liquid outlet of the first liquid cooling device (214a) is connected to the liquid return quick connector of the liquid cooling quick connector of the single board through a pipeline.

35. The single board according to any one of claims 30 to 34, characterized in that, The liquid cooling fast connector of the single board includes a fixed valve core (83) and a movable valve cylinder (82). The movable valve cylinder (82) is sleeved outside the fixed valve core (83) and is used to move along the axial direction of the fixed valve core (83) to allow the coolant to be turned on or off.

36. A network device, characterized in that, The network device includes the frame structure according to any one of claims 19 to 29, and the single board according to any one of claims 30 to 35, wherein there are multiple single boards, and a portion of the multiple single boards is a first single board (21) and another portion is a second single board (22); The first single plate (21) is located on the second side of the middle frame (11) of the frame structure, and the second single plate (22) is located on the first side of the middle frame (11). The first single plate (21) and the second single plate (22) are perpendicular to each other. The liquid cooling fast plug of the first single plate (21) is connected to the liquid cooling fast plug of the first manifold (31) of the frame structure, and the liquid cooling fast plug of the second single plate (22) is connected to the liquid cooling fast plug of the second manifold (32) of the frame structure.

37. A liquid cooling system, characterized in that, The liquid cooling system includes a cooling device (300), a cooling capacity distribution device (200), and a network device according to any one of claims 1 to 18 or 36. The primary side of the cooling capacity distribution device (200) is connected to the cooling device (300) via a pipeline, and the secondary side of the cooling capacity distribution device (200) is connected to the network device (100) via a pipeline.

Images