Cooling distribution unit liquid replenishment equipment and cold plate liquid cooling system

Abstract

This application discloses a cooling distribution unit replenishment device and a cold plate liquid cooling system, belonging to the technical field of liquid cooling devices. The disclosed cold plate liquid cooling system includes a cooling distribution unit replenishment device. The cooling distribution unit includes a replenishment container and a secondary side pipeline connected in series. The replenishment device includes: a storage container for storing heat exchange liquid; a replenisher including a pumping mechanism, the inlet end of which is connected to the storage container; a delivery pipeline connected to the outlet end of the pumping mechanism; and a pipeline assembly including a first delivery branch and a second delivery branch. One end of the first delivery branch is connected to the delivery pipeline, and the other end is connected to the replenishment container. One end of the second delivery branch is connected to the delivery pipeline, and the other end is connected to the secondary side pipeline. Using this replenishment device, replenishment of the secondary side pipeline can be achieved with minimal manual intervention, thus significantly saving manpower.

Description

Technical Field

[0001] This application belongs to the field of liquid cooling device technology, specifically relating to a liquid replenishment device for a cooling distribution unit and a cold plate type liquid cooling system. Background Technology

[0002] Cold plate liquid cooling refers to a non-contact liquid cooling technology that uses liquid as the heat transfer medium to flow through channels inside a cold plate, thereby cooling a heat source, such as a server, through heat transfer. Specifically, a cold plate liquid cooling system typically includes a Cooling Distribution Unit (CDU), which usually consists of primary-side piping, secondary-side piping, and a heat exchanger. The primary-side piping forms a first heat exchange loop with an external radiator, while the secondary-side piping forms a second heat exchange loop with the cold plate. The first and second heat exchange loops exchange heat through the heat exchanger to transfer heat from the heat source.

[0003] During actual system operation, the heat exchange fluid in the secondary side piping continuously exchanges heat with the cold plate. Ensuring a stable flow rate of this heat exchange fluid is crucial for maintaining the system's heat dissipation effect. However, due to leakage and evaporation losses, operators often need to replenish the secondary side piping to ensure this flow rate stability. For convenience, the secondary side piping is usually connected to a replenishment container. Currently, the common replenishment method involves operators manually carrying the heat exchange fluid to the replenishment container and manually adding it, then replenishing the secondary side piping through the container. This method is labor-intensive and fails to meet the requirements of efficient operation and maintenance. Utility Model Content

[0004] The purpose of this application is to provide a cooling distribution unit liquid replenishment device and a cold plate liquid cooling system, which can solve the problem that the liquid replenishment method of the secondary side pipeline in the related technology is labor-intensive.

[0005] In a first aspect, embodiments of this application provide a liquid replenishment device for a cooling distribution unit. The cooling distribution unit includes a liquid replenishment container and a secondary side pipeline connected in communication. The liquid replenishment device includes:

[0006] Liquid storage container, used to store heat exchange liquid;

[0007] A replenishing device includes a pumping mechanism, wherein the inlet end of the pumping mechanism is connected to the liquid storage container;

[0008] The delivery pipeline is connected to the liquid outlet end of the pumping mechanism;

[0009] The pipeline assembly includes a first delivery branch and a second delivery branch. One end of the first delivery branch is connected to the delivery pipeline, and the other end is connected to the replenishment container. One end of the second delivery branch is connected to the delivery pipeline, and the other end is connected to the secondary side pipeline.

[0010] Secondly, embodiments of this application also provide a cold plate type liquid cooling system, which includes a cooling distribution unit and the aforementioned liquid replenishment device. The cooling distribution unit includes a liquid replenishment container and a secondary side pipeline connected in series. One end of the first delivery branch of the liquid replenishment device is connected to the delivery pipeline of the liquid replenishment device, and the other end is connected to the liquid replenishment container. One end of the second delivery branch of the liquid replenishment device is connected to the delivery pipeline, and the other end is connected to the secondary side pipeline.

[0011] In this embodiment, the liquid storage container is used to store the heat exchange liquid, the inlet end of the pumping mechanism is connected to the liquid storage container, the outlet end of the pumping mechanism is connected to the conveying pipeline, one end of the first conveying branch is connected to the conveying pipeline, and the other end is connected to the replenishment container of the cooling distribution unit, one end of the second conveying branch is connected to the conveying pipeline, and the other end is connected to the secondary side pipeline of the cooling distribution unit.

[0012] In actual use, when the pumping mechanism is in the open state, the first delivery branch can automatically replenish the heat exchange liquid into the replenishment container of the cooling distribution unit, and the second delivery branch can automatically replenish the heat exchange liquid into the secondary side pipeline of the cooling distribution unit. Both replenishment methods require virtually no manual intervention, thus significantly saving manpower.

[0013] Furthermore, the solution in this embodiment allows for two approaches: either the heat exchange liquid can be added to the replenishment container and then fed into the secondary side pipeline, or the heat exchange liquid can be directly added to the secondary side pipeline. This provides operators with multiple replenishment options, thereby better meeting the replenishment needs of the cooling distribution unit. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the fluid replenishment device disclosed in the embodiments of this application;

[0015] Figure 2 for Figure 1 Enlarged view of part A;

[0016] Figure 3 This is a partial structural schematic diagram of the cooling distribution unit disclosed in an embodiment of this application.

[0017] Explanation of reference numerals in the attached figures:

[0018] 110 - Liquid storage container; 111 - First liquid level detector; 120 - Waste liquid container; 121 - Second liquid level detector; 130 - Flexible pipeline;

[0019] 200 - Replenishment device; 210 - Pumping mechanism; 220 - Return line; 230 - First valve; 240 - Flow detection element; 250 - Inlet line; 260 - Sterilization mechanism; 270 - Pressure detection element; 280 - Check valve;

[0020] 300 - Delivery pipeline;

[0021] 400 - Piping assembly; 410 - First delivery branch; 420 - Second delivery branch;

[0022] 500 - Connector assembly; 500a - First connector assembly; 500b - Second connector assembly; 500c - Third connector assembly; 500d - Fourth connector assembly; 500e - Fifth connector assembly; 500f - Sixth connector assembly; 500g - Seventh connector assembly; 500h - Eighth connector assembly; 510 - First connector; 520 - Second connector;

[0023] 610 - Switch valve; 610a - First switch valve; 610b - Second switch valve; 610c - Third switch valve; 620 - Second valve; 630 - Exhaust valve;

[0024] 700 - Cooling distribution unit; 710 - Liquid replenishment container; 721 - First pipeline; 722 - Second pipeline; 723 - Third pipeline; 730 - Intermediate pipeline; 740 - Heat exchanger; 750 - Third valve;

[0025] 800 - Connector. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0027] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] The cooling distribution unit replenishment device and cold plate liquid cooling system provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0029] Please refer to Figures 1 to 3 As shown in the embodiment of this application, a cooling distribution unit replenishment device is provided. The cooling distribution unit 700 includes a replenishment container 710 and a secondary side pipeline connected in communication. The replenishment device includes a storage container 110, a replenisher 200, a delivery pipeline 300, and a pipeline assembly 400.

[0030] Specifically, the liquid storage container 110 is used to store heat exchange liquid, and the liquid storage container 110 is, for example, a liquid storage tank or a liquid storage container.

[0031] The replenishment device 200 includes a pumping mechanism 210, the inlet end of which is connected to the storage container 110, and a delivery pipeline 300 connected to the outlet end of the pumping mechanism 210. The pumping mechanism 210 is, for example, a water pump, and the delivery pipeline 300 includes, for example, a delivery pipe, and the material of the delivery pipe is, for example, random copolymer polypropylene (PPR).

[0032] The piping assembly 400 includes a first delivery branch 410 and a second delivery branch 420. One end of the first delivery branch 410 is connected to the delivery pipeline 300, and the other end is connected to the replenishment container 710. One end of the second delivery branch 420 is connected to the delivery pipeline 300, and the other end is connected to the secondary side pipeline. That is, the first delivery branch 410 replenishes the heat exchange liquid into the replenishment container 710, and then the heat exchange liquid is replenished into the secondary side pipeline through the replenishment container 710. The second delivery branch 420 directly replenishes the heat exchange liquid into the secondary side pipeline.

[0033] In this embodiment, the liquid storage container 110 is used to store the heat exchange liquid. The inlet end of the pumping mechanism 210 is connected to the liquid storage container 110, and the outlet end of the pumping mechanism 210 is connected to the conveying pipeline 300. One end of the first conveying branch 410 is connected to the conveying pipeline 300, and the other end is connected to the replenishment container 710 of the cooling distribution unit 700. One end of the second conveying branch 420 is connected to the conveying pipeline 300, and the other end is connected to the secondary side pipeline of the cooling distribution unit 700.

[0034] In actual use, when the pumping mechanism 210 is in the open state, the first conveying branch 410 can automatically replenish the heat exchange liquid into the replenishment container 710 of the cooling distribution unit 700, and the second conveying branch 420 can automatically replenish the heat exchange liquid into the secondary side pipeline of the cooling distribution unit 700. Both replenishment methods require virtually no manual intervention, thus saving manpower.

[0035] Furthermore, the solution in this embodiment allows for two approaches: either heat exchange liquid can be added to the replenishment container 710 and then used to replenish the secondary side pipeline, or heat exchange liquid can be directly added to the secondary side pipeline. This provides operators with multiple replenishment options, thereby better meeting the replenishment needs of the cooling distribution unit 700.

[0036] It should also be noted that when the heat exchange liquid is replenished to the replenishment container 710 via the first delivery branch 410, the heat exchange liquid is first buffered by the replenishment container 710 before entering the secondary side pipeline. This makes the pressure of the heat exchange liquid entering the secondary side pipeline more stable. This replenishment method can achieve constant pressure replenishment, that is, the heat exchange liquid can be replenished to the secondary side pipeline according to a preset pressure. However, when the heat exchange liquid is directly replenished to the secondary side pipeline via the second delivery branch 420, the intermediate step of the replenishment container 710 is omitted, and the heat exchange liquid enters the secondary side pipeline directly. This results in a faster replenishment speed and higher replenishment efficiency for the secondary side pipeline. This replenishment method is suitable for emergency replenishment when the secondary side pipeline experiences excessive pressure loss. Furthermore, when the cooling distribution unit 700 is initially installed, the secondary side pipeline is in an empty state, and this replenishment method can quickly complete the liquid filling of the secondary side pipeline. In actual use, operators can flexibly choose between these two replenishment methods according to different replenishment needs.

[0037] Furthermore, the liquid replenishment device provided in this embodiment improves the emergency measures and efficiency of the secondary side pipeline of the cooling distribution unit 700 in the event of water leakage and pressure loss without significantly altering the structure of the original cooling distribution unit 700. This makes the liquid replenishment device more compatible and conducive to its promotion and use.

[0038] In another embodiment, reference Figure 1 and Figure 2As shown, the fluid replenishment device also includes a connector assembly 500, which includes a first connector 510 and a second connector 520. Both the first connector 510 and the second connector 520 are located in the delivery pipeline 300. The first connector 510 is detachably connected to one end of the first delivery branch 410, and the second connector 520 is detachably connected to one end of the second delivery branch 420. When the first connector 510 is connected to one end of the first delivery branch 410, the delivery pipeline 300 is in communication with the first delivery branch 410. When the second connector 520 is connected to one end of the second delivery branch 420, the delivery pipeline 300 is in communication with the second delivery branch 420.

[0039] In this embodiment, the configuration of the first connector 510 and the second connector 520 provides a connection basis for the connection between the first conveying branch 410 and the second conveying branch 420 and the conveying pipeline 300, thereby reducing the difficulty of connecting the first conveying branch 410 and the second conveying branch 420 and the conveying pipeline 300. Furthermore, the detachable connection between the first connector 510 and the first conveying branch 410, and between the second connector 520 and the second conveying branch 420, makes the replacement and maintenance of the first conveying branch 410 and the second conveying branch 420 more convenient.

[0040] Optionally, both the first connector 510 and the second connector 520 can be self-sealing connectors. When the first delivery branch 410 is connected to the first connector 510, the first connector 510 is in the open state, allowing the heat exchange liquid in the delivery pipeline 300 to enter the first delivery branch 410 through the first connector 510. When the first delivery branch 410 is separated from the first connector 510, the first connector 510 automatically closes to prevent the heat exchange liquid in the delivery pipeline 300 from leaking out through the first connector 510. The connection between the second delivery pipeline 300 and the second connector 520 is the same as that between the first delivery pipeline 300 and the first connector 510, and will not be described again here. With this configuration, when both the first delivery pipeline 300 and the first connector 510, and the second delivery pipeline 300 and the second connector 520 are in the separated state, no additional sealing operation is required to close the first connector 510 and the second connector 520, thereby reducing the operational difficulty of the liquid replenishment equipment.

[0041] Optionally, one end of the first delivery branch 410 may be provided with a third connector, and one end of the second delivery branch 420 may be provided with a fourth connector. The third connector is plugged into the first connector 510 to achieve a detachable connection between one end of the first delivery branch 410 and the first connector 510, and the fourth connector is plugged into the second connector 520 to achieve a detachable connection between one end of the second delivery branch 420 and the second connector 520. The plug-in connection method is simpler to operate, which also reduces the operational difficulty of the liquid replenishment equipment.

[0042] More specifically, the first connector 510 and the second connector 520 are both male connectors, and correspondingly, the third connector and the fourth connector are both female connectors. The first conveying branch 410 includes a first conveying branch pipe, and the third connector is located at one end of the first conveying branch pipe. The second conveying branch 420 includes a second conveying branch pipe, and the fourth connector is located at one end of the second conveying branch pipe. The first conveying branch pipe and the second conveying branch pipe are both polyurethane (PU) pipes.

[0043] Optionally, the end of the first delivery branch 410 connected to the replenishment container 710 may be equipped with a first switch, for example, to control the on / off state of the first delivery branch 410. Similarly, the end of the second delivery branch 420 connected to the secondary side pipeline may be equipped with a second switch, for example, to control the on / off state of the second delivery branch 420. With this configuration, the operator can flexibly control the on / off state of the first delivery branch 410 and the second delivery branch 420 according to actual needs, making the replenishment equipment more convenient to use. Furthermore, both the first and second switches may be push-button switches, allowing for simple pressing operations to control the on / off state of the first delivery branch 410 and the second delivery branch 420, further enhancing the ease of use of the replenishment equipment.

[0044] In other embodiments, the liquid replenishment device may not include the connector assembly 500. In this case, when liquid replenishment is required using the first delivery branch 410, for example, one end of the first delivery branch 410 is directly connected to the delivery pipeline 300 in a non-detachable manner. Similarly, when liquid replenishment is required using the second delivery branch 420, for example, one end of the second delivery branch 420 is directly connected to the delivery pipeline 300 in a non-detachable manner.

[0045] In a further embodiment, reference is made to... Figure 1 As shown, the number of connector assemblies 500 is, for example, at least two, and each connector assembly 500 is arranged at intervals along the extension direction of the conveying pipeline 300, for example, as follows: Figure 1 As indicated by the middle arrow B, each connector assembly 500 corresponds to a different cooling distribution unit 700. In other words, each connector assembly 500 is used to replenish the cooling fluid to a different cooling distribution unit 700. With this configuration, the same fluid replenishment device can replenish fluid to multiple different cooling distribution units 700, thereby saving costs.

[0046] In actual use, for example, when the corresponding cooling distribution unit 700 requires liquid replenishment, the piping assembly 400 is connected to the corresponding connector assembly 500. When liquid replenishment is not required, the piping assembly 400 is disconnected from the corresponding connector assembly 500. Alternatively, the connector assembly 500 can be paired one-to-one with the piping assembly 400, in which case the number of connector assemblies is equal. Or, the number of piping assemblies 400 can be less than the number of connector assemblies 500, in which case at least two connector assemblies 500 correspond to the same piping assembly 400. When liquid replenishment is required, the piping assembly 400 can selectively engage with one of the connector assemblies 500 according to the actual liquid replenishment needs to replenish the corresponding cooling distribution unit 700.

[0047] Further, refer to Figure 1 As shown, the replenishment device also includes, for example, a switching valve 610. The switching valve 610 is connected to the delivery pipeline 300 and between two adjacent connector assemblies 500, and is used to control the opening and closing of the delivery pipeline 300. With this configuration, when the switching valve 610 is in the closed state, it cuts off the delivery pipeline 300, facilitating inspection and maintenance of the delivery pipeline 300 and its connected components, such as the connector assemblies 500. Furthermore, in this layout, when the switching valve 610 is in the closed state, only the connector assembly 500 on the inlet side of the switching valve 610 can be used to replenish the corresponding cooling distribution unit 700. When the switching valve 610 is in the open state, both the connector assembly 500 on the inlet side and the connector assembly 500 on the outlet side of the switching valve 610 can be used to replenish the corresponding cooling distribution unit 700, thus meeting various replenishment needs. Specifically, Figure 1 The left side of the switching valve 610, for example, the liquid inlet side of the switching valve 610.

[0048] In other embodiments, the number of connector assemblies 500 may be one, and the replenishment device may not include the switching valve 610.

[0049] In a further embodiment, reference is made to... Figure 1 As shown, the replenishing device 200 also includes a return liquid line 220 and a first valve 230. The replenishing device also includes a waste liquid container 120. One end of the return liquid line 220 is connected to the outlet end of the delivery line 300, and the other end can be connected to the waste liquid container 120. The first valve 230 is connected to the return liquid line 220 and is used to control the opening and closing of the return liquid line 220. The first valve 230 is, for example, an electric ball valve.

[0050] In actual use, when the switch valve 610 is closed, the first valve 230 is open, and the return pipe 220 is connected to the waste liquid container 120, the connector assembly 500 located on the outlet side of the switch valve 610 can cooperate with the second conveying branch 420 to discharge the heat exchange liquid in the secondary side pipe into the waste liquid container 120, thereby replacing the heat exchange liquid in the secondary side pipe. At this time, the heat exchange liquid in the secondary side pipe flows into the waste liquid container 120, for example, sequentially along the second conveying branch 420, the connector assembly 500, the conveying pipe 300, and the return pipe 220. Therefore, by adopting the solution of this embodiment, the replenishment equipment can not only replenish the secondary side pipe but also replace the liquid in the secondary side pipe, making the replenishment equipment more versatile and better meeting the needs of users. Specifically, Figure 1 The right side of the switching valve 610, for example, the liquid outlet side of the switching valve 610.

[0051] Furthermore, the secondary side pipelines of each cooling distribution unit 700 are typically interconnected to form an integrated system. To ensure the pressure stability of this integrated system, while discharging the heat exchange liquid using the connector assembly 500 located on the outlet side of the switching valve 610, the connector assembly 500 located on the inlet side of the switching valve 610 is simultaneously connected to the first delivery branch 410. This allows the connector assembly 500 on the inlet side of the switching valve 610 to replenish the secondary side pipelines of the corresponding cooling distribution unit 700, thereby replenishing the integrated system. In other words, this replenishment device can not only discharge the existing heat exchange liquid in the integrated system but also replenish new heat exchange liquid to the integrated system while discharging this portion of the heat exchange liquid, and the amount of heat exchange liquid discharged is, for example, equal to the amount of heat exchange liquid replenished. In addition, when only the replenishment device is used to replenish the cooling distribution unit 700, the first valve 230 is, for example, in a closed state to prevent the heat exchange liquid from flowing into the waste liquid container 120.

[0052] Further, refer to Figure 1 As shown, the number of switching valves 610 is, for example, at least two. Each switching valve 610 is connected to the delivery pipeline 300 and to two adjacent connector assemblies 500. The switching valves 610 are arranged at intervals, for example, along the extension direction of the delivery pipeline 300. With this layout, different fluid replenishment needs of users can be met by flexibly controlling the opening and closing of each switching valve 610.

[0053] In other embodiments, the replenishment container 710 may also exclude the return line 220 and the first valve 230. In this case, the outlet end of the delivery line 300 may always be in a closed state.

[0054] In a further embodiment, reference is made to... Figure 1As shown, the replenishment device 200 also includes a flow detection element 240, which is installed in the return line 220 and used to detect the flow information of the return line 220. The flow detection element 240 is, for example, a flow sensor. The replenishment device also includes a control element. The flow detection element 240 and the first valve 230 are both communicatively connected to the control element, which is used to control the opening degree of the first valve 230. With this configuration, the flow detection element 240 can monitor the flow information of the return line 220 in real time, which helps to ensure the reliable operation of the replenishment device. In addition, with this configuration, the control element can dynamically adjust the opening degree of the first valve 230, and by changing the opening degree of the first valve 230, the flow rate of the return line 220 can be changed, thereby meeting different flow requirements.

[0055] In other embodiments, the replenisher 200 may also exclude the flow detection element 240, the control element, and the first valve 230.

[0056] In another embodiment, reference Figure 1 As shown, the replenishment device also includes a second valve 620, which is connected between the delivery pipeline 300 and the outlet end of the pumping mechanism 210, and is used to control the on / off state of the two. The second valve 620 is, for example, a manual valve. When the second valve 620 is in the closed state, the passage between the delivery pipeline 300 and the pumping mechanism 210 is cut off. In this state, it is convenient to inspect and maintain the delivery pipeline 300 and the pumping mechanism 210.

[0057] In other embodiments, the replenishment device may also exclude the second valve 620.

[0058] In another embodiment, reference Figure 1 As shown, the replenishing device 200 also includes an inlet pipe 250 and a sterilization mechanism 260. One end of the inlet pipe 250 is connected to the outlet of the storage container 110, and the other end is connected to the inlet of the delivery pipe 300. The outlet of the delivery pipe 300 is connected to the inlet of the storage container 110. The sterilization mechanism 260 and the pumping mechanism 210 are both connected to the inlet pipe 250. The sterilization mechanism 260 is used to sterilize the heat exchange liquid flowing through the inlet pipe 250. The sterilization mechanism 260 is, for example, an ultraviolet sterilization mechanism.

[0059] In another embodiment, reference Figure 1As shown, the replenishing device 200 also includes an inlet pipe 250, a return pipe 220, and a sterilization mechanism 260. One end of the inlet pipe 250 is connected to the outlet of the storage container 110, and the other end is connected to the inlet of the delivery pipe 300. One end of the return pipe 220 is connected to the outlet of the delivery pipe 300, and the other end can be connected to the inlet of the storage container 110. The sterilization mechanism 260 and the pumping mechanism 210 are both connected to the inlet pipe 250. The sterilization mechanism 260 is used to sterilize the heat exchange liquid flowing through the inlet pipe 250. The sterilization mechanism 260 is, for example, an ultraviolet sterilization mechanism.

[0060] In actual use, when both the sterilization mechanism 260 and the pumping mechanism 210 are in the open state, the heat exchange liquid in the storage container 110 will circulate sequentially along the loop of the storage container 110, the inlet pipe 250, the delivery pipe 300, and back to the storage container 110 under the drive of the pumping mechanism 210. That is to say, the heat exchange liquid flowing out of the outlet of the storage container 110 flows sequentially through the inlet pipe 250 and the delivery pipe, and then returns to the storage container 110 through the inlet, and then re-enters the inlet pipe 250 through the outlet of the storage container 110 to start the next cycle. During the process of the heat exchange liquid flowing through the inlet pipe 250, the sterilization mechanism 260 can sterilize the heat exchange liquid, thereby preventing bacteria and microorganisms in the heat exchange liquid from affecting the normal operation of the replenishment equipment.

[0061] Specifically, the replenishing device 200 also includes the return line 220 mentioned above. In this case, the outlet of the delivery line 300 is connected to the inlet of the storage container 110, for example, through the return line 220.

[0062] Furthermore, in actual use, for example, the operating time of the pumping mechanism 210 can be controlled. Specifically, the pumping mechanism 210 may operate for 30 minutes and then stop for 2 hours. During the 30-minute operation of the pumping mechanism 210, the heat exchange liquid in the storage container 110 completes one complete cycle. Additionally, the circulation flow rate of the heat exchange liquid is, for example, 2 m³ / s. ³ / h. It should be noted that the running time, stopping time, and circulation flow rate of the pumping mechanism 210 are determined according to the actual situation; this is only an example.

[0063] In addition, sterilization is performed only when the cooling distribution unit 700 does not require liquid replacement or replenishment, to prevent the sterilization operation from affecting the normal liquid replacement and replenishment of the cooling distribution unit 700.

[0064] It should be noted that the heat exchange fluid is prone to microbial growth after a period of use, so it needs to be replaced regularly or sterilized regularly using the sterilization unit 260.

[0065] Optionally, refer to Figure 1 As shown, the outlet of the liquid storage container 110 is connected to one end of the liquid inlet pipe 250, for example, through a connecting joint 800.

[0066] In other embodiments, the refill device 200 may also exclude the sterilization mechanism 260.

[0067] In one optional embodiment, one end of the return line 220 may be selectively connected to the inlet of the storage container 110 or the waste container 120 via a flexible line 130, for example, a flexible steel wire hose. Specifically, during a liquid replacement operation, the flexible line 130 may be connected only to the waste container 120, allowing the heat exchange liquid in the return line 220 to flow into the waste container 120. During a sterilization operation, the flexible line 130 may be connected only to the inlet of the storage container 110, allowing the heat exchange liquid in the return line 220 to flow back to the storage container 110.

[0068] In this embodiment, the flexible pipeline 130 is easy to deform, so that the flexible pipeline 130 can be switched between the liquid inlet of the liquid storage container 110 and the waste liquid container 120 in a relatively convenient way.

[0069] Furthermore, the flexible conduit 130 may be equipped with a filter, for example, to filter the heat exchange liquid flowing through the flexible conduit 130. After filtration, the impurities in the heat exchange liquid are reduced, which is beneficial to the reliable operation of the replenishment equipment. Even further, the filter may be, for example, a fine filter, to better filter impurities in the heat exchange liquid.

[0070] In another embodiment, the replenishing device 200 further includes an inlet pipe 250 and a pressure detection element 270. One end of the inlet pipe 250 is connected to the storage container 110, and the other end is connected to the inlet end of the delivery pipe 300. The pumping mechanism 210 and the pressure detection element 270 are both connected to the inlet pipe 250, and the pressure detection element 270 is used to detect the pressure information within the inlet pipe 250. The pressure detection element 270 is, for example, a pressure sensor. The replenishing device also includes a control element. The pressure detection element 270 and the pumping mechanism 210 are both communicatively connected to the control element, which is used to control the operating frequency of the pumping mechanism 210.

[0071] In this embodiment, the pressure detection element 270 can monitor the pressure information of the liquid inlet pipe 250 in real time, which helps to ensure that the liquid replenishment device replenishes the cooling distribution unit 700 according to the preset pressure. In addition, in this embodiment, the control element can dynamically adjust the operating frequency of the pumping mechanism 210, and by changing the operating frequency of the pumping mechanism 210, the liquid replenishment pressure can be adjusted, thereby meeting different liquid replenishment needs.

[0072] In actual operation, control elements, such as frequency converters, regulate the operating frequency of the pumping mechanism 210.

[0073] When performing constant pressure replenishment, the pumping mechanism 210 has a starting pressure of 1.2 bar and a stopping pressure of 1.4 bar. It should be noted that this is just an example, and the starting and stopping pressures of the pumping mechanism 210 are determined according to the specific circumstances.

[0074] In other embodiments, the replenisher 200 may also exclude the inlet line 250, the pressure sensing element 270, and the control element.

[0075] In one alternative embodiment, the control element includes, for example, a control box, and the control box includes, for example, a controller. The flow detection element 240 and the first valve 230 are both communicatively connected to the controller. More specifically, the controller is, for example, a PLC controller.

[0076] In an optional embodiment, the liquid replenishment device may further include, for example, a first liquid level detector 111 and a second liquid level detector 121. The first liquid level detector 111 is disposed, for example, in the liquid storage container 110, and is used to detect the liquid level value in the liquid storage container 110. The first liquid level detector 111 is connected, for example, to a control element, and when the detected liquid level value is less than a preset value, the control element, for example, controls an alarm to sound. Similarly, the second liquid level detector 121 is disposed, for example, in the waste liquid container 120, and is used to detect the liquid level value in the waste liquid container 120. The second liquid level detector 121 is connected, for example, to a control element, and when the detected liquid level value is greater than a preset value, the control element, for example, controls an alarm to sound.

[0077] As one specific implementation method, refer to Figure 1 As shown, the replenishment device includes, for example, the aforementioned liquid storage container 110, waste liquid container 120, pumping mechanism 210, pressure detection element 270, flow detection element 240, sterilization mechanism 260, switching valve 610, first valve 230, and second valve 620, and refers to... Figure 1 As shown, the number of switching valves 610 is, for example, three, and the number of cooling distribution units 700 and connector assemblies 500 is, for example, eight each. For ease of description, Figure 1From left to right, the three switching valves 610 are, for example, the first switching valve 610a, the second switching valve 610b, and the third switching valve 610c, respectively; and the eight connector assemblies 500 are, for example, the first connector assembly 500a, the second connector assembly 500b, the third connector assembly 500c, the fourth connector assembly 500d, the fifth connector assembly 500e, the sixth connector assembly 500f, the seventh connector assembly 500g, and the eighth connector assembly 500h. Specifically, the first switching valve 610a is connected between the second connector assembly 500b and the third connector assembly 500c; the second switching valve 610b is connected between the fourth connector assembly 500d and the fifth connector assembly 500e; and the third switching valve 610c is connected between the sixth connector assembly 500f and the seventh connector assembly 500g.

[0078] The fluid replenishment device provided in this embodiment has, for example, the following operating modes:

[0079] Mode 1, constant pressure liquid replenishment. In this mode, the first valve 230 and the sterilization mechanism 260 are, for example, both in the closed state, while the pumping mechanism 210, the second valve 620, the first switching valve 610a, the second switching valve 610b, and the third switching valve 610c are, for example, all in the open state. At this time, each connector assembly 500 is, for example, only connected to the first delivery branch 410, so that the liquid replenishment equipment can replenish multiple liquid replenishment containers 710 at the same time, and then the liquid replenishment containers 710 can be used to replenish the heat exchange liquid to the corresponding secondary side pipeline at constant pressure.

[0080] Mode 2, liquid replacement. In this mode, the pumping mechanism 210, the first valve 230, the second valve 620, the first switching valve 610a, and the third switching valve 610c are all in the open state, while the sterilization mechanism 260 and the second switching valve 610b are both in the closed state. The return liquid pipeline 220 is connected to the waste liquid container 120. At this time, the first connector assembly 500a, the second connector assembly 500b, the third connector assembly 500c, and the fourth connector assembly 500d are all connected only to the first delivery branch 410, while the fifth connector assembly 500e... The sixth connector assembly 500f, the seventh connector assembly 500g, and the eighth connector assembly 500h are all connected only to the second delivery branch 420. That is, the first connector assembly 500a to the fourth connector assembly 500d replenish the liquid to the replenishment container 710 of the corresponding cooling distribution unit 700. At the same time, the fifth connector assembly 500e to the eighth connector assembly 500h discharge the heat exchange liquid from the secondary side pipeline of the corresponding cooling distribution unit 700 to maintain the pressure stability of the overall system formed by the connection of the secondary side pipelines of each cooling distribution unit 700.

[0081] Mode 3, emergency liquid replenishment or liquid injection after the initial installation of the cooling distribution unit 700. In this mode, the sterilization mechanism 260 and the first valve 230 are, for example, both in the closed state, while the pumping mechanism 210, the second valve 620, the first switch valve 610a, the second switch valve 610b, and the third switch valve 610c are, for example, all in the open state. At this time, each connector assembly 500 is, for example, only connected to the second delivery branch 420, so that the liquid replenishment equipment can be used to directly replenish the secondary side pipelines of multiple first cooling distribution units 700 at the same time.

[0082] Mode 4, sterilization. In this mode, the first valve 230, the second valve 620, the first switching valve 610a, the second switching valve 610b, the third switching valve 610c, the sterilization mechanism 260, and the pumping mechanism 210 are all in the open state, and the return liquid pipeline 220 is connected to the storage container 110. At this time, each connector assembly 500 is in the separated state from the corresponding first conveying branch 410 and second conveying branch 420, and the heat exchange liquid circulates sequentially along the loop of the storage container 110, the conveying pipeline 300, the return liquid pipeline 220, and the storage container 110.

[0083] When the replenishment equipment is in modes one through four, the specific opening and closing states of its components are shown in Table 1 below. Additionally, in modes two and four, the specific opening degree of the first valve 230 depends on the actual situation.

[0084] Table 1 shows the specific opening and closing status of the components of the fluid replenishment equipment.

[0085]

[0086] It should be noted that in Mode 2, the opening and closing states of the first switching valve 610a, the second switching valve 610b, and the third switching valve 610c are merely illustrative examples. Other opening and closing methods can also be used for the first switching valve 610a, the second switching valve 610b, and the third switching valve 610c. For example, the first switching valve 610a can be closed, while the second switching valve 610b and the third switching valve 610c can be opened simultaneously. In this case, the first connector assembly 500a and the second connector assembly 500b are, for example, only connected to the first conveying branch 410, while the third connector... Head assembly 500c, fourth connector assembly 500d, fifth connector assembly 500e, sixth connector assembly 500f, seventh connector assembly 500g, and eighth connector assembly 500h are all connected only to the second delivery branch 420. That is, the first connector assembly 500a and the second connector assembly 500b replenish the liquid to the replenishment container 710 of the corresponding cooling distribution unit 700, while the third connector assembly 500c to the eighth connector assembly 500h discharge the heat exchange liquid from the secondary side pipeline of the corresponding cooling distribution unit 700.

[0087] In another embodiment, reference Figure 1 As shown, the replenishment device 200 also includes a one-way valve 280. The outlet end of the pumping mechanism 210 is connected to the delivery pipeline 300 through the one-way valve 280. The one-way valve 280 is used for unidirectional flow from the outlet end of the pumping mechanism 210 to the delivery pipeline 300. That is, the heat exchange liquid can only flow from the pumping mechanism 210 to the delivery pipeline 300, and cannot flow back from the delivery pipeline 300 to the pumping mechanism 210. With this setting, during the replenishment operation, it can prevent the heat exchange liquid in the delivery pipeline 300 from flowing back to the pumping mechanism 210 due to the pressure in the delivery pipeline 300 being greater than the pressure at the outlet end of the pumping mechanism 210. This helps to extend the service life of the pumping mechanism 210.

[0088] Optionally, the check valve 280 is connected, for example, to the liquid inlet line 250 mentioned above. The liquid inlet line 250 is also connected to a pressure stabilizing tank, which is connected, for example, between the check valve 280 and the pumping mechanism 210. The heat exchange liquid flows sequentially through the pumping mechanism 210, the pressure stabilizing tank, and the check valve 280. The pressure stabilizing tank helps to ensure the stability of the pressure in the liquid inlet line 250, thereby making the operation of the liquid replenishment equipment more reliable.

[0089] In other embodiments, the refill device 200 may also exclude the one-way valve 280.

[0090] In another embodiment, the replenishment device further includes an exhaust valve 630, which is connected to the delivery line 300 and is used to discharge gas from the delivery line 300.

[0091] In this embodiment, the exhaust valve 630 can be used to promptly discharge excess gas from the delivery pipeline 300, which can prevent the pressure inside the delivery pipeline 300 from becoming too high, thereby helping to ensure the reliable operation of the liquid replenishment equipment.

[0092] In other embodiments, the fluid replenishment device may also exclude the vent valve 630.

[0093] This application embodiment also provides a cold plate liquid cooling system, including a cooling distribution unit 700 and the aforementioned liquid replenishment device. The cooling distribution unit 700 includes a liquid replenishment container 710 and a secondary side pipeline connected in series. One end of the first delivery branch 410 of the liquid replenishment device is connected to the delivery pipeline 300 of the liquid replenishment device, and the other end is connected to the liquid replenishment container 710. One end of the second delivery branch 420 of the liquid replenishment device is connected to the delivery pipeline 300, and the other end is connected to the secondary side pipeline. This cold plate liquid cooling system includes the aforementioned liquid replenishment device, which has the same beneficial effects as the liquid replenishment device described above, and will not be repeated here.

[0094] As one specific implementation method, refer to Figure 3As shown, the secondary side piping includes, for example, a first pipe 721, a second pipe 722, and a third pipe 723 connected in sequence. One end of the first pipe 721 is connected to the liquid outlet of the cold plate, and the other end of the first pipe 721 is connected to one end of the second pipe 722. The other end of the second pipe 722 is connected to one end of the third pipe 723 through a heat exchanger 740, and the other end of the third pipe 723 is connected to the liquid inlet of the cold plate. The second pipe 722 is connected to a third valve 750, for example. The second delivery branch 420 mentioned above is connected to the second pipe 722 through the third valve 750. The third valve 750 is used to control the on / off state of the second delivery branch 420 and the second pipe 722.

[0095] In actual use, the heat exchange liquid with a higher temperature in the cold plate enters the heat exchanger 740 through the outlet of the cold plate, the first pipe 721 and the second pipe 722 in sequence. After heat exchange with the primary side pipe of the cooling distribution unit 700 in the heat exchanger 740, the temperature of this part of the heat exchange liquid decreases. Then, this part of the heat exchange liquid flows back to the cold plate through the third pipe 723 and the inlet of the cold plate in sequence to start the next cycle. That is to say, the heat exchange liquid in the secondary side pipe circulates along the cold plate, the first pipe 721, the second pipe 722, the heat exchanger 740, the third pipe 723 and the cold plate in sequence. This loop is provided with, for example, a first drive pump, which is used to drive the heat exchange liquid to circulate along the loop.

[0096] In addition, when replenishing the liquid, the power source of the heat exchange liquid includes, for example, a pumping mechanism 210, and when changing the liquid, the power source of the heat exchange liquid includes, for example, a first drive pump. Specifically, the heat exchange liquid enters the second delivery branch 420 through the third valve 750 under the drive of the first drive pump, and enters the waste liquid container 120 in sequence along the second connector 520, the delivery pipeline 300, and the return liquid pipeline 220 under the drive of the first drive pump.

[0097] In addition, the replenishment container 710 is connected to the first pipe 721 through the intermediate pipe 730, for example. The intermediate pipe 730 is equipped with a second drive pump. In actual use, the heat exchange liquid in the replenishment container 710 enters the first pipe 721 through the intermediate pipe 730 under the drive of the second drive pump, and then circulates along the cold plate, the first pipe 721, the second pipe 722, the heat exchanger 740, the third pipe 723 and the cold plate.

[0098] Optionally, the cooling distribution unit 700 may be provided with a first interface and a second interface, the first interface being connected to the replenishment container 710, the second interface being connected to the secondary side pipeline, the first delivery branch 410 being connected to the first interface to replenish the replenishment container 710, and the second delivery branch 420 being connected to the second interface to directly replenish the secondary side pipeline through the second interface.

[0099] Optionally, the cold plate is used, for example, for heat exchange with the server, and both the cold plate and the server are located, for example, inside the equipment room, while the replenishment device 200, the storage container 110, and the waste container 120 mentioned above are located, for example, outside the equipment room. Due to the influence of the server, the temperature in the equipment room is usually high. By installing the replenishment device 200, the storage container 110, and the waste container 120 outside the equipment room, the temperature of the replenishment device 200, the storage container 110, and the waste container 120 can be prevented from becoming too high, thereby reducing the growth of microorganisms.

[0100] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A cooling distribution unit replenishment device, wherein the cooling distribution unit (700) includes a replenishment container (710) and a secondary side pipeline connected in communication, characterized in that, The fluid replenishment device includes: A liquid storage container (110) is used to store heat exchange liquid; The replenishment device (200) includes a pumping mechanism (210), the inlet end of which is connected to the storage container (110); The delivery pipeline (300) is connected to the liquid outlet of the pumping mechanism (210); The pipeline assembly (400) includes a first delivery branch (410) and a second delivery branch (420). One end of the first delivery branch (410) is connected to the delivery pipeline (300), and the other end is connected to the replenishment container (710). One end of the second delivery branch (420) is connected to the delivery pipeline (300), and the other end is connected to the secondary side pipeline.

2. The fluid replenishment device according to claim 1, characterized in that, The fluid replenishment device also includes a connector assembly (500), which includes a first connector (510) and a second connector (520). The first connector (510) and the second connector (520) are both located in the delivery pipeline (300). The first connector (510) is detachably connected to one end of the first delivery branch (410), and the second connector (520) is detachably connected to one end of the second delivery branch (420).

3. The fluid replenishment device according to claim 2, characterized in that, The number of connector assemblies (500) is at least two, and each connector assembly (500) is arranged at intervals along the extension direction of the delivery pipeline (300). Each connector assembly (500) corresponds to a different cooling distribution unit (700). The liquid replenishment device also includes a switch valve (610), which is connected to the delivery pipeline (300) and between two adjacent connector assemblies (500). The switch valve (610) is used to control the opening and closing of the delivery pipeline (300).

4. The fluid replenishment device according to claim 3, characterized in that, The replenishing device (200) also includes a return pipeline (220) and a first valve (230). The replenishing device also includes a waste liquid container (120). One end of the return pipeline (220) is connected to the outlet end of the delivery pipeline (300), and the other end is connected to the waste liquid container (120). The first valve (230) is connected to the return pipeline (220) and is used to control the opening and closing of the return pipeline (220).

5. The fluid replenishment device according to claim 4, characterized in that, The replenishing device (200) also includes a flow detection element (240), which is installed on the return line (220) and used to detect the flow information of the return line (220). The replenishing device also includes a control element, which is communicatively connected to both the flow detection element (240) and the first valve (230). The control element is used to control the opening degree of the first valve (230).

6. The fluid replenishment device according to claim 1, characterized in that, The replenishment device also includes a second valve (620), which is connected between the delivery pipeline (300) and the outlet end of the pumping mechanism (210) and is used to control the on / off state of the two.

7. The fluid replenishment device according to claim 1, characterized in that, The replenishing device (200) also includes an inlet pipe (250) and a sterilization mechanism (260). One end of the inlet pipe (250) is connected to the outlet of the storage container (110), and the other end is connected to the inlet of the delivery pipe (300). The outlet of the delivery pipe (300) is connected to the inlet of the storage container (110). The sterilization mechanism (260) and the pumping mechanism (210) are both connected to the inlet pipe (250), and the sterilization mechanism (260) is used to sterilize the heat exchange liquid flowing through the inlet pipe (250).

8. The fluid replenishment device according to claim 1, characterized in that, The replenishing device (200) also includes an inlet pipe (250) and a pressure detection element (270). One end of the inlet pipe (250) is connected to the liquid storage container (110), and the other end is connected to the inlet end of the delivery pipe (300). The pumping mechanism (210) and the pressure detection element (270) are both connected to the inlet pipe (250), and the pressure detection element (270) is used to detect the pressure information in the inlet pipe (250). The replenishing device also includes a control element. The pressure detection element (270) and the pumping mechanism (210) are both communicatively connected to the control element. The control element is used to control the operating frequency of the pumping mechanism (210).

9. The fluid replenishment device according to claim 1, characterized in that, The replenishing device (200) also includes a one-way valve (280). The outlet end of the pumping mechanism (210) is connected to the delivery pipeline (300) through the one-way valve (280). The one-way valve (280) is used for one-way flow from the outlet end of the pumping mechanism (210) to the delivery pipeline (300). And / or, the replenishment device further includes an exhaust valve (630) connected to the delivery line (300).

10. A cold plate type liquid cooling system, characterized in that, The device includes a cooling distribution unit (700) and a replenishment device according to any one of claims 1-9. The cooling distribution unit (700) includes a replenishment container (710) and a secondary side pipeline connected in communication. One end of the first delivery branch (410) of the replenishment device is connected to the delivery pipeline (300) of the replenishment device, and the other end is connected to the replenishment container (710). One end of the second delivery branch (420) of the replenishment device is connected to the delivery pipeline (300), and the other end is connected to the secondary side pipeline.

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