A water segregator
By designing vertically arranged diversion and convergence channels, combined with exhaust components and quick-release connectors, the problem of uneven cooling medium flow in the water distributor was solved, achieving uniform distribution of cooling medium in each heat dissipation area of the server, avoiding local overheating, and improving heat dissipation efficiency and system stability.
Patent Information
- Application Number
- CN202522011491.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-18
AI Technical Summary
The existing water distributor does not optimize the flow distribution of multiple water outlets, resulting in differences in the flow rate of the cooling medium when it flows through each water outlet. In some server heat dissipation areas, the cooling capacity cannot match the heat generation demand due to insufficient supply of cooling medium, resulting in localized overheating.
Design a water distributor with a vertically arranged diversion channel for the inlet water distribution component, the inlet located on the bottom, and the outlets spaced vertically. The confluence channel for the return water distribution component is also vertically arranged, with the return outlet located on the bottom. Combined with the exhaust component and quick-release connector, ensure uniform distribution of cooling medium flow and smooth return.
It achieves uniform flow of cooling medium at each water outlet, avoids local overheating, improves the cooling efficiency and stability of the server heat dissipation area, and simplifies the production and maintenance process.
Smart Images

Figure CN224684594U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fluid control technology, and in particular to a water distributor. Background Technology
[0002] With the rapid development of cloud computing and big data technologies, the computing density of data center server clusters continues to increase, and servers generate a large amount of heat when operating under high load. If this heat cannot be dissipated in time, it will cause the temperature of the server's core components to become too high, thereby affecting operational stability and even shortening the lifespan of the hardware. Therefore, liquid cooling systems have become the core solution for thermal management of high-density servers, and the water distributor, as a key component in the liquid cooling system responsible for the distribution and recovery of the cooling medium, directly determines the overall heat dissipation efficiency of the server through its distribution accuracy and operational stability.
[0003] Currently, the commonly used water distributors in liquid cooling systems mainly consist of an inlet water distribution unit and a return water distribution unit. The cooling medium flows in from the inlet of the inlet water distribution unit and is delivered to various heat dissipation areas of the server through multiple outlets of the inlet water distribution unit. After heat exchange, the cooling medium flows back to the return water distribution unit through multiple return water outlets and is finally discharged from the return water outlet of the return water distribution unit to enter the subsequent cooling stage.
[0004] However, the existing water distributor does not optimize the flow distribution of multiple water outlets. When the cooling medium flows through each water outlet, flow differences may occur, resulting in insufficient cooling medium supply in some server heat dissipation areas, and the heat dissipation capacity cannot match the heat generation demand, thus causing local overheating.
[0005] Therefore, the above problems urgently need to be solved. Utility Model Content
[0006] The purpose of this utility model is to provide a water distributor to alleviate the problem that the heat dissipation capacity of some server heat dissipation areas cannot match the heat demand due to insufficient supply of cooling medium, and to effectively avoid local overheating.
[0007] To achieve this objective, the present invention adopts the following technical solution:
[0008] A water distributor is disposed between an external cooling device and a server, for distributing the cooling medium output by the external cooling device to each heat dissipation area of the server, and collecting the cooling medium after heat exchange in each heat dissipation area of the server and sending it back to the external cooling device. The water distributor includes a water inlet and a water outlet component.
[0009] The water inlet and outlet components include a diversion channel, a water inlet, and a water outlet interface;
[0010] The diversion channel is vertically arranged inside the inlet water-draining component;
[0011] The water inlet is located on the lower side of the water inlet and water distribution component and is connected to the diversion channel, for introducing the cooling medium output by the external cooling device into the diversion channel;
[0012] The water outlet is provided with multiple outlets, which are spaced apart in the vertical direction, and all of the outlets are connected to the distribution channel to distribute the cooling medium to each heat dissipation area of the server through the outlets.
[0013] Preferably, the water distributor further includes a return water distribution component, which includes a confluence channel, a return water interface, and a return water outlet.
[0014] The confluence channel is vertically installed inside the return water distribution component;
[0015] The return water interface is provided in multiple ways, and the multiple return water interfaces are arranged at intervals in the vertical direction. All of the multiple return water interfaces are connected to the confluence channel to receive the cooling medium after the heat exchange of each heat dissipation area of the server.
[0016] The return water inlet is located on the lower side of the return water distribution component and communicates with the confluence channel, and is used to transport the cooling medium after confluence back to the external cooling equipment.
[0017] Preferably, the water inlet component is provided with an exhaust component that communicates with the diversion channel, and the exhaust component is configured to discharge air bubbles entrained in the cooling medium in the diversion channel.
[0018] Preferably, the exhaust component is an exhaust valve, which is located on the upper side of the water inlet component and communicates with the diversion channel to discharge air bubbles entrained in the cooling medium in the diversion channel.
[0019] Preferably, the water distributor further includes multiple quick-release connectors, each of which corresponds to one of the multiple water outlet interfaces;
[0020] The quick-release connector includes a male end and a female end, which can be engaged or disengaged from the female end, and when engaged, they form a channel for the flow of cooling medium.
[0021] The water outlet is provided with one of the male terminal and the female terminal, and the media access port of the server heat dissipation area is provided with the other of the male terminal and the female terminal.
[0022] Preferably, the inlet has an outwardly extending insertion section that can be inserted into the output pipe of the external cooling device.
[0023] Preferably, the outer periphery of the insertion segment is provided with a plurality of annular protrusions spaced apart along its extension direction;
[0024] The output pipe of the external cooling device can be elastically clamped to the outer periphery of the insertion section. When the insertion section is inserted into the output pipe, the plurality of annular protrusions are interference-fitted with the inner wall of the output pipe.
[0025] Preferably, the water inlet component is provided with a fixing seat on both its upper and lower sides, and the fixing seat is provided with a mounting part for connecting with an external mounting structure.
[0026] Preferably, the cross-sectional dimensions of the diversion channel are consistent along the vertical direction.
[0027] Preferably, the water inlet and water outlet components have the same body structure, each including a vertical channel, a main interface disposed on the lower side of the vertical channel, and multiple branch interfaces spaced apart along the vertical direction and connected to the vertical channel;
[0028] When the main interface is connected to the output end of the external cooling device and multiple branch interfaces are connected to the access port of the server, the main body structure is the water inlet and water outlet component, the vertical channel is the water distribution channel, the main interface is the water inlet, and the branch interfaces are the water outlets.
[0029] When the main interface is connected to the input end of the external cooling device, and the multiple branch interfaces are connected to the discharge port of the server, the main body structure is the water return component, the vertical channel is the confluence channel, the main interface is the water return port, and the branch interfaces are the water return interfaces.
[0030] The beneficial effects of this utility model are:
[0031] The present invention provides a vertically arranged diversion channel with the water inlet located on the lower side. After the cooling medium enters the vertical diversion channel from bottom to top, the pressure distribution at each height position will be more uniform when the cooling medium flows in the vertical direction. Multiple water outlets are arranged at intervals in the vertical direction, so that each water outlet connects to the area with similar pressure in the diversion channel. This makes the flow rate of the cooling medium through each water outlet more uniform and avoids significant flow differences. This alleviates the problem that the heat dissipation capacity cannot match the heat generation demand in some server heat dissipation areas due to insufficient cooling medium supply, and effectively avoids local overheating. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the structure of the water distributor provided by this utility model;
[0033] Figure 2This is a partial structural schematic diagram of the water inlet and water outlet component provided by this utility model.
[0034] In the picture:
[0035] 1. Inlet water inlet component; 11. Inlet; 111. Insertion section; 1111. Annular protrusion; 12. Outlet water interface; 2. Return water inlet component; 21. Return water interface; 22. Return water outlet; 3. Exhaust component; 4. Quick-release connector; 41. Male end; 5. Fixing base. Detailed Implementation
[0036] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.
[0037] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0038] In this application, the term "and / or" describes a relationship between related objects, indicating that three relationships can exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent: the existence of only one centrifugal vortex magnetic pump, the simultaneous existence of one centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump, or the existence of only one centrifugal vortex magnetic pump. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.
[0039] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.
[0040] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values not using relative terms should also be disclosed as specific values with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.
[0041] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.
[0042] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.
[0043] Please see Figure 1 and Figure 2 This embodiment provides a water distributor, which is installed between the external cooling equipment and the server. It is used to distribute the cooling medium output by the external cooling equipment to each heat dissipation area of the server, and collect the cooling medium after the heat exchange between each heat dissipation area of the server and send it back to the external cooling equipment.
[0044] Specifically, the water distributor includes an inlet water distribution component 1. The inlet water distribution component 1 includes a distribution channel, an inlet 11, and an outlet 12. The distribution channel is vertically arranged within the inlet water distribution component 1. The inlet 11 is located on the lower side of the inlet water distribution component 1 and communicates with the distribution channel, used to introduce the cooling medium output from external cooling equipment into the distribution channel. Multiple outlet 12s are provided, spaced vertically, and all are connected to the distribution channel to distribute the cooling medium to various heat dissipation areas of the server.
[0045] During operation, the cooling medium output from the external cooling equipment first enters the distribution channel through the inlet 11 located on the lower side of the water inlet component 1. The cooling medium then flows along the vertical distribution channel and is delivered to various heat dissipation areas of the server by multiple outlets 12 spaced vertically, completing the distribution of the cooling medium. With this configuration, the distribution channel is vertically positioned and the inlet 11 is located on the lower side. As the cooling medium enters the vertical distribution channel from bottom to top, the pressure distribution at different heights along the vertical direction is more uniform. The multiple outlets 12 spaced vertically ensure that each outlet connects to an area with similar pressure within the distribution channel, resulting in a more uniform flow rate of the cooling medium through each outlet 12. This prevents significant flow rate differences and alleviates the problem of insufficient cooling medium supply in some server heat dissipation areas, thus effectively preventing localized overheating.
[0046] To improve the circulation of cooling medium between the external cooling equipment and the server, the distributor also includes a return water distribution component 2. The return water distribution component 2 includes a confluence channel, return water inlets 21, and return water outlets 22. The confluence channel is vertically positioned within the return water distribution component 2. Multiple return water inlets 21 are provided, spaced vertically, and all are connected to the confluence channel to receive the cooling medium after heat exchange in each heat dissipation area of the server. The return water outlets 22 are located on the lower side of the return water distribution component 2 and are connected to the confluence channel, used to transport the converged cooling medium back to the external cooling equipment.
[0047] Understandably, multiple return water inlets 21 are arranged vertically at intervals and all connected to the vertical confluence channel. This ensures that the cooling medium after heat exchange in each heat dissipation area quickly enters the confluence channel through the corresponding return water inlet 21, avoiding excessively long confluence paths or excessive resistance. Furthermore, the confluence channel is vertically arranged with the return water inlet 22 located on the lower side. After entering the vertical confluence channel, the hot medium naturally flows downwards, ensuring smooth flow and preventing the hot medium from accumulating within the channel.
[0048] In this embodiment, the inlet water diversion component 1 and the return water diversion component 2 have the same body structure, both including a vertical channel, a main interface disposed on the lower side of the vertical channel, and multiple branch interfaces that are spaced apart along the vertical direction and communicate with the vertical channel.
[0049] When the main interface is connected to the output of the external cooling equipment and multiple branch interfaces are connected to the access port of the server, the main body structure is a water inlet / water outlet component 1, the vertical channel is a water distribution channel, the main interface is a water inlet 11, and the branch interfaces are water outlets 12.
[0050] When the main interface is connected to the input end of the external cooling equipment and multiple branch interfaces are connected to the discharge port of the server, the main body structure is a water return component 2, the vertical channel is a confluence channel, the main interface is a water return port 22, and the branch interfaces are water return interfaces 21.
[0051] As shown above, the inlet water-cooling component 1 and the return water-cooling component 2 adopt the same body structure, eliminating the need to develop different molds and production processes for them during manufacturing. This allows for a unified production process and component specifications, reducing the variety of components and lowering the complexity and manufacturing cost of the production process. Furthermore, if components need to be replaced later, there is no need to separately stock two types of spare parts: inlet water-cooling component 1 and return water-cooling component 2. Spare parts with the same body structure are interchangeable, avoiding problems of mismatched or insufficient spare parts and improving maintenance efficiency.
[0052] As can be seen from the above, in this embodiment, the inlet water-water separator 1 and the return water-water separator 2 have the same structure. The following description will take the structure of the inlet water-water separator 1 as an example.
[0053] Generally, if the cooling medium contains air bubbles, the air bubbles will occupy part of the space in the distribution channel, resulting in a reduction in the cross-sectional area of the distribution channel actually used to transport the cooling medium. This may cause uneven flow of the cooling medium through each water outlet 12, or even a sudden drop in flow at some water outlets 12 due to air bubble blockage, which in turn affects the supply of cooling medium to the corresponding heat dissipation area of the server.
[0054] To address the aforementioned issues, the inlet water distribution component 1 is equipped with an exhaust component 3 that communicates with the distribution channel. The exhaust component 3 is configured to expel air bubbles entrained in the cooling medium within the distribution channel, thereby preventing air bubbles from occupying space within the distribution channel or interfering with the flow of the cooling medium. This ensures a stable cross-sectional area for the cooling medium within the distribution channel and maintains a smooth flow state of the medium. Consequently, each outlet water interface 12 can continuously obtain a uniform and stable flow of cooling medium, providing stable conditions for efficient heat exchange in each heat dissipation area of the server and further enhancing the heat dissipation reliability of the cooling system.
[0055] Preferably, the venting component 3 is an venting valve, which is located above the water inlet component 1 and communicates with the diversion channel to expel air bubbles entrained in the cooling medium within the diversion channel. Air bubbles entrained in the cooling medium will naturally float upwards due to their lower density than liquid. Positioning the venting valve above the water inlet component 1 coincides with this upward aggregation of air bubbles, making it easier for them to naturally converge at the venting valve position without requiring additional power to assist bubble movement, thus reducing the complexity of the venting process. It should be noted that the venting valve can be either an automatic or manual type. An automatic venting valve automatically opens to expel air bubbles based on the pressure of the cooling medium or the buoyancy generated by the air bubbles, and automatically closes when no air bubbles are present to prevent cooling medium leakage. A manual venting valve, on the other hand, vents air by manually operating the valve to open and close, allowing for flexible control of the venting timing and volume according to actual needs.
[0056] To improve the ease of assembly of the water distributor, the distributor also includes multiple quick-release connectors 4, each corresponding to a specific water outlet 12. Each quick-release connector 4 includes a male end 41 and a female end, which can be snapped together or detached, forming a channel for the cooling medium to flow when snapped together. Each water outlet 12 has either a male end 41 or a female end, while the medium inlet port in the server's heat dissipation area has the other end. It is understood that the male end 41 and the female end of the quick-release connector 4 can be directly snapped together or detached without the need for additional tools, shortening installation time and improving installation efficiency. It should be noted that the specific model of the quick-release connector 4 can be selected according to the actual application scenario, preferably the UQD type connector (universal quick-release connector) in the existing technology, and therefore will not be elaborated further.
[0057] To improve the ease of assembly of the water distributor, the inlet 11 has an outwardly extending insertion section 111, which can be inserted into the output pipe of an external cooling device. This design allows for direct insertion and connection between the insertion section 111 and the output pipe, eliminating the need for additional fasteners or complex assembly procedures. This simplifies the connection between the inlet 11 and the output pipe of the external cooling device, shortens installation time, and improves assembly efficiency.
[0058] Furthermore, the outer periphery of the insertion section 111 is provided with multiple annular protrusions 1111 spaced apart along its extension direction. The output pipe of the external cooling equipment can be elastically clamped to the outer periphery of the insertion section 111. When the insertion section 111 is inserted into the output pipe, the multiple annular protrusions 1111 are press-fitted with the inner wall of the output pipe. With this configuration, the output pipe elastically clamps the insertion section 111, and when the annular protrusions 1111 are press-fitted with the inner wall of the pipe, the protrusions will squeeze the inner wall of the pipe, making the two fit more tightly. This can significantly reduce the gap at the connection point, further reducing the risk of cooling medium leakage from the gap, avoiding insufficient total medium volume or pressure fluctuation in the system due to leakage, and ensuring the sealing of the cooling medium delivery. In addition, the multiple spaced annular protrusions 1111 can increase the contact area and friction between the insertion section 111 and the inner wall of the pipe, preventing the insertion section 111 from axially loosening or falling off in the pipe.
[0059] Specifically, the inlet water-diverting component 1 is provided with fixing seats 5 on both its upper and lower sides, and the fixing seats 5 are provided with mounting parts for connection with the external installation structure. The fixing seats 5 provided on the upper and lower sides can form a bidirectional fixation with the external installation structure through the mounting parts, positioning and constraining the inlet water-diverting component 1 from the two key positions above and below, avoiding the tilting or displacement of the inlet water-diverting component 1 that is prone to occur when fixed on only one side, and ensuring that the diversion channel always maintains a vertical posture.
[0060] It should be noted that the connection between the mounting part and the external mounting structure can be achieved by screwing or snap-fitting. When screwing, the mounting part can have pre-drilled threaded holes, and the external mounting structure can have corresponding through holes. Bolts are passed through the through holes and screwed into the threaded holes to achieve a secure connection. When snap-fitting, the mounting part can have elastic clips, and the external mounting structure can have corresponding matching slots. The elastic clips are inserted into the slots to quickly connect and secure the two components.
[0061] To improve the uniformity of cooling medium flow distribution by the water inlet component 1, the cross-sectional dimensions of the diversion channel are consistent along the vertical direction. This avoids sudden changes in local flow velocity due to cross-sectional changes, thereby preventing uneven pressure in the channel. As a result, the pressure at the multiple water outlets 12 spaced apart along the vertical direction tends to be consistent, and the flow of cooling medium through each water outlet 12 is more uniform.
[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A water distributor, disposed between an external cooling device and a server, for distributing the cooling medium output from the external cooling device to various heat dissipation areas of the server, and collecting the cooling medium after heat exchange in each heat dissipation area of the server and returning it to the external cooling device, characterized in that, The water distributor includes an inlet water distribution component (1); The water inlet and outlet component (1) includes a diversion channel, an inlet (11), and an outlet (12); The diversion channel is vertically arranged inside the inlet water-draining component (1); The water inlet (11) is located on the lower side of the water inlet and water distribution component (1) and is connected to the diversion channel, for introducing the cooling medium output by the external cooling device into the diversion channel; The water outlet (12) is provided in multiple ways, and the multiple water outlets (12) are arranged at intervals in the vertical direction. The multiple water outlets (12) are all connected to the diversion channel so as to distribute the cooling medium to each heat dissipation area of the server through the multiple water outlets (12).
2. A water distributor according to claim 1, characterized in that, The water distributor also includes a return water distribution component (2), which includes a confluence channel, a return water interface (21), and a return water outlet (22); The confluence channel is vertically installed inside the return water distribution component (2); The return water interface (21) is provided in multiple ways. The multiple return water interfaces (21) are arranged at intervals in the vertical direction, and the multiple return water interfaces (21) are all connected to the confluence channel to receive the cooling medium after the heat exchange of each heat dissipation area of the server is completed. The return water inlet (22) is located on the lower side of the return water distribution component (2) and is connected to the confluence channel, for conveying the cooling medium after confluence back to the external cooling equipment.
3. A water distributor according to claim 1, characterized in that, The water inlet component (1) is provided with an exhaust component (3) that communicates with the flow distribution channel. The exhaust component (3) is configured to discharge air bubbles entrained in the cooling medium in the flow distribution channel.
4. A water distributor according to claim 3, characterized in that, The exhaust component (3) is an exhaust valve, which is located on the upper side of the water inlet component (1) and communicates with the diversion channel to discharge air bubbles entrained in the cooling medium in the diversion channel.
5. A water distributor according to claim 1, characterized in that, The water distributor also includes multiple quick-release connectors (4), and each of the multiple quick-release connectors (4) corresponds to one of the multiple water outlets (12); The quick-release connector (4) includes a male end (41) and a female end. The male end (41) and the female end can be engaged or disengaged, and when engaged, a channel for the flow of cooling medium is formed. The water outlet (12) is provided with either the male end (41) or the female end, and the medium access port of the server heat dissipation area is provided with the other of the male end (41) and the female end.
6. A water distributor according to claim 1, characterized in that, The inlet (11) has an outwardly extending insertion section (111) that can be inserted into the output pipe of the external cooling device.
7. A water distributor according to claim 6, characterized in that, The outer periphery of the insertion segment (111) is provided with a plurality of annular protrusions (1111) spaced apart along its extension direction; The output pipe of the external cooling device can be elastically clamped to the outer periphery of the insertion section (111). When the insertion section (111) is inserted into the output pipe, the plurality of annular protrusions (1111) are interference-fitted with the inner wall of the output pipe.
8. A water distributor according to claim 1, characterized in that, The water inlet component (1) is provided with a fixing seat (5) on both the upper and lower sides, and the fixing seat (5) is provided with a mounting part for connecting with an external installation structure.
9. A water distributor according to claim 1, characterized in that, The cross-sectional dimensions of the diversion channels are consistent along the vertical direction.
10. A water distributor according to claim 2, characterized in that, The water inlet water inlet component (1) and the water return water inlet component (2) have the same body structure, both including a vertical channel, a main interface disposed on the lower side of the vertical channel, and multiple branch interfaces that are spaced apart along the vertical direction and connected to the vertical channel; When the main interface is connected to the output end of the external cooling device and multiple branch interfaces are connected to the access port of the server, the main body structure is the water inlet water distribution component (1), the vertical channel is the distribution channel, the main interface is the water inlet (11), and the branch interface is the water outlet (12). When the main interface is connected to the input end of the external cooling device and the multiple branch interfaces are connected to the discharge port of the server, the main body structure is the water return component (2), the vertical channel is the confluence channel, the main interface is the water return port (22), and the branch interface is the water return interface (21).