Cooling capacity distribution unit and liquid cooling cabinet

Abstract

The embodiment of the utility model provides a cooling capacity distribution unit and a liquid cooling cabinet, and relates to the technical field of liquid cooling. The cooling capacity distribution unit comprises a heat dissipation assembly and a liquid supplementing assembly. The liquid supplementing assembly comprises a liquid storage tank, a liquid passing pipe, a liquid supplementing pump and a gas passing pipe. The liquid storage tank is provided with a liquid passing opening and an air passing opening, and the liquid passing opening and the air passing opening are both communicated with an inner cavity of the liquid storage tank. The liquid passing pipe is provided with a first port, a second port and a third port, the first port is communicated with the liquid passing port, the liquid inlet end of the liquid supplementing pump is communicated with the second port, and the liquid outlet end of the liquid supplementing pump is communicated with the heat dissipation assembly. The ventilation pipe is provided with a fourth port and a fifth port, the fourth port is communicated with the ventilation port, the fifth port is communicated with the outside atmosphere, and the ventilation pipe is provided with an air path on-off control component. In this way, the liquid supplementing requirement can be met, and meanwhile the structure of the liquid supplementing assembly is simple.

Description

Technical Field

[0001] This application relates to the field of liquid cooling technology, and in particular to cooling capacity distribution units and liquid cooling cabinets. Background Technology

[0002] Liquid cooling, as a highly efficient heat dissipation method, is widely used in scenarios such as data centers. A liquid cooling system may include a coolant distribution unit (CDU), which forms a cooling medium circulation loop with the device to be cooled. The heat generated by the device can be carried to the coolant distribution unit by the cooling medium flowing in the cooling medium circulation loop, and then dissipated through the coolant distribution unit.

[0003] In related technologies, the cooling capacity distribution unit may include a liquid replenishment assembly, which is used to replenish the cooling medium circulation loop. The liquid replenishment assembly in the cooling capacity distribution unit of related technologies has a relatively complex structure. Utility Model Content

[0004] The embodiments of this application aim to provide a cooling capacity distribution unit and a liquid cooling cabinet to solve the problem that the liquid replenishment component structure of the cooling capacity distribution unit in the prior art is relatively complex.

[0005] A first aspect of this application provides a cooling distribution unit, which includes a heat dissipation assembly and a liquid replenishment assembly. The liquid replenishment assembly includes a liquid storage tank, a liquid inlet pipe, a liquid replenishment pump, and a vent pipe.

[0006] The liquid storage tank has a liquid inlet and a vent, both of which are connected to the inner cavity of the liquid storage tank.

[0007] The liquid inlet pipe has a first port, a second port, and a third port. The first port is connected to the liquid inlet, the inlet of the liquid replenishment pump is connected to the second port, and the outlet of the liquid replenishment pump is connected to the heat dissipation component.

[0008] The ventilator has a fourth port and a fifth port. The fourth port is connected to the vent, and the fifth port is connected to the outside atmosphere. The ventilator is equipped with an air passage control component, which is used to control the opening and closing of the air passage between the vent and the outside atmosphere.

[0009] The cooling capacity distribution unit provided in this application embodiment, after installing an air path on / off control component on the vent pipe, only requires one liquid replenishment pump. Through the cooperation of the air path on / off control component and the liquid replenishment pump, liquid replenishment to the heat dissipation components and the liquid storage tank can be achieved. The liquid replenishment component has fewer components, resulting in a simpler structure and reduced cost. Furthermore, the reduced number of components reduces the space occupied by the liquid replenishment component, simplifying its placement; for example, it can be easily installed in a rack-mounted cooling capacity distribution unit. Additionally, the fewer liquid replenishment pumps and valves in the liquid replenishment component reduces its failure rate, thereby lowering the maintenance cost of the cooling capacity distribution unit.

[0010] Optionally, the cooling capacity distribution unit also includes a chassis. The liquid receiver and replenishment pump are located inside the chassis, while the third and fifth ports are located outside the chassis. The gas flow control unit is located at the fifth port to facilitate communication between the fifth port and the outside atmosphere. The gas flow control unit is located outside the chassis for easy user operation.

[0011] Optionally, the gas flow control component includes a plug, which is detachably connected to the vent tube at the fifth port and is used to block the fifth port. This results in a simpler structure for the gas flow control component, requiring less space and facilitating its placement.

[0012] Optionally, the third and fifth ports are located on the same side wall of the chassis. This allows for operation of the third port connection and the airflow control unit at the fifth port from the same side of the chassis, making operations such as replenishing liquid via an external replenishment container more convenient.

[0013] Optionally, the vent is located on the top wall of the storage tank. A float and a limiting mechanism are installed at the vent, both located inside the storage tank. The limiting mechanism restricts the float's movement. The float seals the vent when the liquid level in the storage tank reaches a preset height and releases the seal when the liquid level falls below the preset height. Thus, when replenishing the storage tank, once the liquid level reaches the preset height, the float seals the vent, isolating the tank's interior from the outside atmosphere, keeping the interior sealed. At this point, the cooling medium in the external replenishment container cannot continue to flow into the storage tank, stopping the replenishment process and preventing the cooling medium from overflowing through the vent.

[0014] Optionally, the limiting mechanism includes an isolation net located at the vent. The isolation net and the tank wall of the storage tank enclose a movable space, within which a float is positioned and can move up and down. The isolation net restricts the float's range of movement. This facilitates control over the float's direction of movement, ensuring that the float blocks the vent once the liquid level in the storage tank reaches a preset height.

[0015] Optionally, the liquid inlet is located at the bottom of the storage tank, and above the third port. This facilitates the drainage of liquid from the storage tank through the third port by utilizing the height difference between the liquid inlet and the third port, making it easier to drain the liquid from the storage tank and facilitating operations such as cleaning the storage tank.

[0016] Optionally, the replenishment assembly also includes a liquid level sensor, which is located on the wall of the liquid storage tank. The liquid level sensor is used to detect the liquid level in the liquid storage tank so as to know the liquid level in the liquid storage tank and thus facilitate corresponding operations based on the liquid level in the liquid storage tank.

[0017] Optionally, the replenishment assembly also includes a check valve. The check valve is located between the replenishment pump and the heat dissipation assembly. The outlet of the replenishment pump is connected to the inlet of the check valve, and the outlet of the check valve is connected to the heat dissipation assembly. This prevents the cooling medium in the heat dissipation assembly from flowing back into the replenishment assembly, thus facilitating the stable flow of the cooling medium in the cooling medium circulation loop.

[0018] Optionally, the cooling distribution unit is a rack-mounted cooling distribution unit, which makes it easier to arrange the liquid replenishment components in the cooling distribution unit and to replenish the cooling distribution unit. At the same time, it allows for more flexible expansion of the cooling distribution unit, simpler maintenance, and lower cost.

[0019] A second aspect of this application provides a liquid-cooled cabinet, which includes a cabinet body, a device to be cooled, and a cooling capacity distribution unit as described in any of the above embodiments. Both the device to be cooled and the cooling capacity distribution unit are housed within the cabinet body, and the heat dissipation components of the cooling capacity distribution unit are used to form a cooling medium circulation loop with the device to be cooled. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of a liquid cooling heat dissipation system provided in an embodiment of this application;

[0022] Figure 2 A schematic diagram of a liquid-cooled cabinet provided for an embodiment of this application;

[0023] Figure 3 A schematic diagram of a cooling capacity distribution unit provided in an embodiment of this application;

[0024] Figure 4 A schematic diagram of another cooling capacity distribution unit provided in an embodiment of this application;

[0025] Figure 5 for Figure 4 A partial schematic diagram of the cooling capacity distribution unit provided in the document;

[0026] Figure 6 for Figure 4 The diagram provided shows the cooling capacity distribution unit replenishing liquid when the gas path on / off control component is closed and the liquid replenishment pump is turned on;

[0027] Figure 7 for Figure 4 The diagram provided shows the cooling capacity distribution unit replenishing liquid when the gas path on / off control component is turned on and the liquid replenishment pump is turned off;

[0028] Figure 8 for Figure 4 The diagram provided shows the cooling capacity distribution unit replenishing the cooling medium circulation loop using the cooling medium in the storage tank.

[0029] Figure 9 for Figure 4 The diagram shows the cold energy distribution unit provided in the diagram after the liquid level in the storage tank reaches the preset height.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Cooling distribution unit; 20. Heat dissipation device; 30. Cabinet; 40. External liquid replenishment container; 50. Connecting pipe;

[0032] 100. Liquid replenishment assembly; 110. Liquid storage tank; 111. Liquid inlet; 112. Vent.

[0033] 120. Liquid passage tube; 121. Third port;

[0034] 130. Replenishment pump;

[0035] 140. Ventilation tube; 141. Fifth port;

[0036] 150. Gas circuit on / off control component; 160. Limiting mechanism; 161. Isolation net; 170. Liquid level sensor; 180. Check valve; 190. Float;

[0037] 200. Heat dissipation components;

[0038] 210. Heat exchanger; 211. First heat exchange channel; 212. Second heat exchange channel;

[0039] 220, First pressure sensor; 230, Drive pump; 230a, First drive pump; 230b, Second drive pump; 240, Flow meter; 250, Second pressure sensor; 260, Third pressure sensor; 270, Temperature sensor; 280, Flow control valve; 291, Liquid supply interface; 292, Liquid return interface;

[0040] 300. Chassis; 310. Front panel; 320. Rear panel. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the connection within two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] In the above description, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Figure 1 This is a schematic diagram of a liquid cooling system provided in an embodiment of this application. The solid arrows in the diagram indicate the direction of the cooling medium flow.

[0047] This application provides a cooling capacity distribution unit 10, which includes a heat dissipation component 200. The heat dissipation component 200 is connected to a device 20 to be cooled and forms a cooling medium circulation loop with the device 20 to allow the cooling medium to circulate. The heat generated by the device 20 to be cooled can be carried to the heat dissipation component 200 by the cooling medium flowing in the cooling medium circulation loop and dissipated by the heat dissipation component 200, so that the device 20 to be cooled can be cooled more efficiently.

[0048] The heat dissipation device 20 is a liquid cooling device, meaning that it is a device that can dissipate heat using liquid cooling. For example, the heat dissipation device 20 can be a cold plate type liquid cooling device or an immersion type liquid cooling device.

[0049] For example, the heat dissipation device 20 may include, but is not limited to, a server, a power supply frame, etc.

[0050] For example, the heat dissipation component 200 can be connected to multiple devices 20 to be cooled, and the heat dissipation component 200 can also be used to distribute and control the flow rate of the cooling medium flowing through each device 20 to be cooled.

[0051] During the circulation of the cooling medium in the cooling medium circulation loop, problems such as evaporation and leakage may occur, leading to a shortage of cooling medium in the circulation loop. In order to replenish the cooling medium circulation loop when it is short of cooling medium, the cooling capacity distribution unit 10 also includes a replenishment component 100. The replenishment component 100 is connected to the heat dissipation component 200 and can be used to input the cooling medium into the heat dissipation component 200 to replenish the cooling medium circulation loop.

[0052] In some examples, the cooling distribution unit 10 can be a rack-mounted cooling distribution unit, which allows the cooling distribution unit 10 to provide a larger cooling capacity.

[0053] In other examples, the cooling distribution unit 10 can be a rack-mounted cooling distribution unit, which gives the cooling distribution unit 10 the advantages of flexible expansion, simple maintenance and low cost.

[0054] Figure 2 This is a schematic diagram of a liquid-cooled cabinet provided in an embodiment of this application.

[0055] like Figure 2 As shown in the figure, this application embodiment also provides a liquid-cooled cabinet, which includes a cabinet body 30, a heat dissipation device 20 and a cooling capacity distribution unit 10. The cooling capacity distribution unit 10 and the heat dissipation device 20 are disposed inside the cabinet body 30. At this time, the cooling capacity distribution unit 10 is a rack-mounted cooling capacity distribution unit. The heat dissipation component 200 of the cooling capacity distribution unit 10 is connected to the heat dissipation device 20 disposed inside the cabinet body 30 and forms a cooling medium circulation loop with the heat dissipation device 20 disposed inside the cabinet body 30.

[0056] For example, the heat dissipation device 20 located inside the cabinet 30 may include, but is not limited to, computing nodes, switching nodes, power nodes, etc.

[0057] For example, multiple heat dissipation devices 20 may be installed inside the cabinet 30.

[0058] Figure 3 This is a schematic diagram of a cooling capacity distribution unit provided in an embodiment of this application. The solid arrows in the diagram point in the direction of the cooling medium flow, while the dashed arrows point in the direction of the primary coolant flow.

[0059] like Figure 3As shown, the heat dissipation assembly 200 includes a heat exchanger 210, which has a first heat exchange channel 211. The inlet of the first heat exchange channel 211 is connected to the outlet of the device to be cooled 20, and the outlet of the first heat exchange channel 211 is connected to the inlet of the device to be cooled 20. The first heat exchange channel 211 is used to form a cooling medium circulation loop with the device to be cooled 20. The heat generated by the device to be cooled 20 can be carried by the cooling medium flowing in the cooling medium circulation loop to the first heat exchange channel 211 and dissipated through the heat exchanger 210.

[0060] For example, the heat dissipation assembly 200 also includes a liquid supply interface 291 and a liquid return interface 292. The outlet of the first heat exchange channel 211 is connected to the liquid supply interface 291, which is used to connect to the inlet of the device to be cooled 20, so that the outlet of the first heat exchange channel 211 is connected to the inlet of the device to be cooled 20 through the liquid supply interface 291. The inlet of the first heat exchange channel 211 is connected to the liquid return interface 292, which is used to connect to the outlet of the device to be cooled 20, so that the inlet of the first heat exchange channel 211 is connected to the outlet of the device to be cooled 20 through the liquid return interface 292. In this way, the connection between the cooling capacity distribution unit 10 and the device to be cooled 20 can be made more convenient.

[0061] In some examples, heat exchanger 210 is a liquid-liquid heat exchanger, for example, heat exchanger 210 can be a plate heat exchanger. Heat exchanger 210 also has a second heat exchange channel 212. The outlet of the second heat exchange channel 212 is connected to the inlet of the cold source, and the inlet of the second heat exchange channel 212 is connected to the outlet of the cold source. The second heat exchange channel 212 is used to form a primary-side circulation loop with the cold source for the circulation of the primary-side coolant. At this time, the cooling medium circulation loop can also be called the secondary-side circulation loop. Heat exchanger 210 is used to exchange heat between the cooling medium in the first heat exchange channel 211 and the primary-side coolant in the second heat exchange channel 212. The heat in the cooling medium in the first heat exchange channel 211 can be carried to the cold source for heat dissipation through the primary-side coolant circulating in the primary-side circulation loop.

[0062] For example, the cold source is a device independent of the liquid cooling cabinet. For instance, the cold source may include, but is not limited to, a cooling tower, a chiller, etc.

[0063] For example, a flow control valve 280 may be provided between the outlet of the second heat exchange channel 212 and the inlet of the cold source. The flow control valve 280 can be used to control the flow rate of the primary side coolant flowing through the second heat exchange channel 212.

[0064] In other examples, the heat exchanger 210 is an air-liquid heat exchanger, for example, the heat exchanger 210 can be a finned heat exchanger. In this case, the cooling distribution unit 10 can include a fan for driving airflow at the heat exchanger 210 to remove heat from the cooling medium in the first heat exchange channel 211.

[0065] like Figure 3 As shown, the heat dissipation assembly 200 also includes a drive pump 230, which is connected in series in the cooling medium circulation loop. The drive pump 230 is used to drive the cooling medium to circulate in the cooling medium circulation loop. For example, multiple drive pumps 230 can be provided, and these multiple drive pumps 230 are arranged in parallel to improve the reliability of the cooling medium circulation loop. For instance, two drive pumps 230 can be provided, one being a first drive pump 230a and the other a second drive pump 230b, which are connected in parallel to the cooling medium circulation loop.

[0066] For example, the drive pump 230 is located between the outlet of the first heat exchange channel 211 and the liquid supply interface 291. That is, the liquid inlet of the drive pump 230 is connected to the outlet of the first heat exchange channel 211, and the liquid outlet of the drive pump 230 is connected to the liquid supply interface 291. For example, the liquid inlets of both the first drive pump 230a and the second drive pump 230b are connected to the outlet of the first heat exchange channel 211, and the liquid outlets of both the first drive pump 230a and the second drive pump 230b are connected to the liquid supply interface 291.

[0067] For example, the replenishing component 100 is disposed between the inlet end of the drive pump 230 and the outlet of the first heat exchange channel 211, and the replenishing component 100 and the inlet end of the drive pump 230 and the outlet of the first heat exchange channel 211 are connected in a flow channel. Since the pressure between the inlet end of the drive pump 230 and the outlet of the first heat exchange channel 211 is relatively low, and the replenishing component 100 and the inlet end of the drive pump 230 and the outlet of the first heat exchange channel 211 are connected in a flow channel, it is relatively easy to replenish the cooling medium circulation loop through the replenishing component 100.

[0068] For example, the heat dissipation assembly 200 also includes a first pressure sensor 220, which is disposed between the liquid replenishment assembly 100 and the liquid inlet of the drive pump 230. The first pressure sensor 220 is used to detect the pressure in the flow channel between the liquid replenishment assembly 100 and the liquid inlet of the drive pump 230, so as to control the liquid replenishment of the liquid replenishment assembly 100.

[0069] For example, the heat dissipation assembly 200 also includes a flow meter 240, which is connected in series in the cooling medium circulation loop and is used to detect the flow rate of the cooling medium in the cooling medium circulation loop. For example, the flow meter 240 can be located between the outlet end of the drive pump 230 and the supply port 291, and the flow meter 240 can be used to detect the flow rate of the cooling medium flowing out of the supply port 291.

[0070] For example, the heat dissipation assembly 200 also includes a second pressure sensor 250, which is disposed between the liquid outlet of the drive pump 230 and the liquid supply structure. For instance, the second pressure sensor 250 may be disposed between the flow meter 240 and the liquid supply port 291. The second pressure sensor 250 is used to detect the pressure of the cooling medium flowing out of the liquid supply port 291.

[0071] For example, the heat dissipation assembly 200 also includes a third pressure sensor 260, which is located between the inlet of the first heat exchange channel 211 and the return interface 292. The third pressure sensor 260 is used to detect the pressure of the cooling medium flowing in from the return interface 292.

[0072] For example, the heat dissipation assembly 200 also includes a temperature sensor 270, which is located between the inlet of the first heat exchange channel 211 and the return interface 292. The temperature sensor 270 is used to detect the temperature of the cooling medium flowing in from the return interface 292.

[0073] like Figure 3 As shown, the liquid replenishment assembly 100 includes a liquid storage tank 110 and a vent pipe 140. The liquid storage tank 110 has a vent 112, which is connected to the inner cavity of the liquid storage tank 110. The vent pipe 140 has a fourth port and a fifth port 141. The fourth port is connected to the vent 112, and the fifth port 141 is connected to the outside atmosphere. The liquid storage tank 110 is used to store the cooling medium.

[0074] In related technologies, to achieve liquid replenishment, the liquid replenishment assembly also includes a first liquid replenishment pump and a second liquid replenishment pump. The liquid storage tank has an inlet and an outlet. The inlet of the first liquid replenishment pump is connected to the outlet of the liquid storage tank, and the outlet of the first liquid replenishment pump is connected to the heat dissipation assembly. The outlet of the second liquid replenishment pump is connected to the inlet of the liquid storage tank. The inlet of the second liquid replenishment pump is used to connect to an external liquid replenishment container through a connecting pipe. The second liquid replenishment pump is used to transport the cooling medium in the external container to the liquid storage tank, and the first liquid replenishment pump is used to transport the cooling medium in the liquid storage tank to the heat dissipation assembly.

[0075] However, in related technologies, the replenishment assembly requires a large number of replenishment pumps, as well as a large number of corresponding pipes and valves, resulting in a complex structure and high cost. Furthermore, the large number of components necessitates a significant space requirement, making assembly placement difficult. For example, it is challenging to arrange the replenishment assembly in a small rack-mounted cooling distribution unit. Additionally, the large number of replenishment pumps and valves means that a failure in any one of them can lead to assembly failure, resulting in a high failure rate and increased maintenance costs for the cooling distribution unit.

[0076] Figure 4 This is a schematic diagram of another cooling capacity distribution unit provided in an embodiment of this application. Figure 5 for Figure 4 A partial schematic diagram of the cooling capacity distribution unit provided in the document.

[0077] Based on this, such as Figures 3-5 As shown in this embodiment, the replenishment assembly 100 further includes a liquid inlet pipe 120 and a liquid replenishment pump 130. The liquid storage tank 110 also has a liquid inlet 111, which communicates with the inner cavity of the liquid storage tank 110. The liquid inlet pipe 120 has a first port, a second port, and a third port 121. The first port communicates with the liquid inlet 111, the liquid inlet of the liquid replenishment pump 130 communicates with the second port, the liquid outlet of the liquid replenishment pump 130 communicates with the heat dissipation assembly 200, and the third port 121 can be used to communicate with an external replenishment container 40 through a connecting pipe 50. The vent pipe 140 is provided with a gas path on / off control component 150, which is used to control the on / off of the gas path between the vent 112 and the outside atmosphere.

[0078] The external liquid replenishment container 40 is a container that is independent of the cold energy distribution unit 10.

[0079] For example, the fluid inlet tube 120 is a three-way tube.

[0080] Figure 6 for Figure 4 The diagram shows the cooling capacity distribution unit replenishing coolant when the airflow control component is off and the coolant pump is on. The solid arrows in the diagram indicate the flow direction of the cooling medium.

[0081] like Figure 6As shown, the external liquid replenishment container 40 can directly replenish the heat dissipation component 200 by cooperating with the liquid replenishment pump 130 and the air circuit on / off control component 150. This can be used for liquid replenishment during the whole machine debugging of the cooling distribution unit 10 or the first liquid replenishment of the cooling distribution unit 10. At this time, the liquid storage tank 110 may not contain any cooling medium. Specifically, the internal cavity of the liquid storage tank 110 can be isolated from the outside atmosphere by closing the gas path on / off control component 150, thus keeping the internal cavity of the liquid storage tank 110 in a sealed state. With the gas path on / off control component 150 closed and the third port 121 connected to the external replenishment container 40 via the connecting pipe 50, the replenishment pump 130 is started. After the cooling medium flows into the liquid passage pipe 120, due to the suction of the replenishment pump 130, the cooling medium will flow into the replenishment pump 130 through the second port and be delivered to the heat dissipation assembly 200. Because the internal cavity of the liquid storage tank 110 is in a sealed state with a certain pressure, the cooling medium in the liquid passage pipe 120 will not flow into the liquid storage tank 110 through the first port and the liquid passage 111. After the pressure detected by the first pressure sensor 220 meets the requirements, the replenishment pump 130 can be turned off to stop replenishing the heat dissipation device.

[0082] For example, during the process of replenishing the heat dissipation component 200 directly by the external replenishment container 40, the liquid level in the external replenishment container 40 can be higher than the liquid level in the storage tank 110.

[0083] For example, the connecting tube 50 can extend into the external replenishment container 40 through the opening at the top of the external replenishment container 40.

[0084] Figure 7 for Figure 4 The diagram provided illustrates how the cooling capacity distribution unit replenishes coolant when the airflow control component is on and the coolant pump is off. In the diagram, the solid arrows indicate the direction of coolant flow, and the dotted arrows indicate the direction of airflow.

[0085] like Figure 6 , Figure 7As shown, the liquid replenishment in the storage tank 110 can be achieved through the cooperation of the replenishment pump 130 and the gas path on / off control component 150. Specifically, the liquid level in the external replenishment container 40 can be made higher than the liquid level in the storage tank 110 and the liquid passage pipe 120. By closing the gas path on / off control component 150, the inner cavity of the storage tank 110 is isolated from the outside atmosphere, so that the inner cavity of the storage tank 110 is in a sealed state. After the gas path on / off control component 150 is in the closed state and the third port 121 is connected to the external replenishment container 40 through the connecting pipe 50, the replenishment pump 130 is started, so that the cooling medium in the external replenishment container 40 flows into the liquid passage pipe 120 through the connecting pipe 50. After the cooling medium in the external replenishment container 40 flows into the liquid passage pipe 120, the replenishment pump 130 can be turned off and the air passage on / off control component 150 can be turned on, so that the inner cavity of the liquid storage tank 110 is connected to the outside atmosphere. Since the liquid level in the external replenishment container 40 is higher than the liquid level in the liquid storage tank 110 and the liquid passage pipe 120, the cooling medium in the external replenishment container 40 can flow into the liquid storage tank 110 using the principle of communicating vessels. During the process of the cooling medium flowing into the liquid storage tank 110, the air in the liquid storage tank 110 can be discharged through the vent pipe 140, thereby realizing the replenishment of the liquid storage tank 110. After the liquid level in the liquid storage tank 110 meets the requirements, the connecting pipe 50 can be pulled out from the external replenishment container 40, or the connection between the connecting pipe 50 and the third port 121 can be disconnected, or the air passage on / off control component 150 can be turned off to stop the replenishment of the liquid storage tank 110.

[0086] For example, the connecting pipe 50 can be a transparent pipe. Whether the cooling medium has flowed into the liquid passage pipe 120 can be determined by whether the cooling medium has flowed to the end of the connecting pipe 50 connected to the third port 121, so as to determine the timing of shutting down the liquid replenishment pump 130 and opening the gas passage on / off control component 150.

[0087] Figure 8 for Figure 4 The diagram provided illustrates how the cooling capacity distribution unit replenishes the cooling medium circulation loop using the cooling medium in the storage tank. In the diagram, the solid arrows point in the direction of cooling medium flow, and the dotted-dashed arrows point in the direction of air flow.

[0088] like Figure 8As shown, when cooling medium is stored in the liquid storage tank 110, it can be used to replenish the heat dissipation assembly 200. Specifically, during the operation of the cooling distribution unit 10, the air path on / off control component 150 is in a normally open state. When the pressure detected by the first pressure sensor 220 is lower than the required value, the replenishment pump 130 can be turned on, and the cooling medium in the liquid storage tank 110 can be delivered to the heat dissipation assembly 200 through the replenishment pump 130. During the process of the cooling medium flowing out of the liquid storage tank 110, air can enter the liquid storage tank 110 through the vent pipe 140 to balance the pressure in the liquid storage tank 110. After the pressure detected by the first pressure sensor 220 meets the requirements, the replenishment pump 130 can be turned off to stop replenishing the heat dissipation device. During the process of replenishing the heat dissipation assembly 200 through the liquid storage tank 110, the third port 121 is in a closed state.

[0089] Thus, by installing the air path on / off control component 150 on the vent pipe 140, only one liquid replenishment pump 130 is needed. Through the cooperation of the air path on / off control component 150 and the liquid replenishment pump 130, liquid replenishment to the heat dissipation assembly 200 and the liquid storage tank 110 can be achieved. The liquid replenishment assembly 100 has fewer components, resulting in a simpler structure and reduced cost. Furthermore, the reduced number of components in the liquid replenishment assembly 100 reduces the space it occupies, simplifying its placement; for example, it can be easily installed in a rack-mounted cooling distribution unit. Additionally, the fewer liquid replenishment pumps 130 and valves in the liquid replenishment assembly 100 reduces its failure rate, thereby lowering the maintenance cost of the cooling distribution unit 10.

[0090] like Figure 3 As shown, for example, the outlet of the replenishment pump 130 is connected to the channel between the first pressure sensor 220 and the outlet of the first heat exchange channel 211.

[0091] In some examples, the replenishment assembly 100 also includes a one-way valve 180. The one-way valve 180 is located between the replenishment pump 130 and the heat dissipation assembly 200. The outlet of the replenishment pump 130 is connected to the inlet of the one-way valve 180, and the outlet of the one-way valve 180 is connected to the heat dissipation assembly 200. This allows the outlet of the replenishment pump 130 to be connected to the heat dissipation assembly 200 through the one-way valve 180, making it difficult for the cooling medium in the heat dissipation assembly 200 to flow back into the replenishment assembly 100, which is beneficial for the stable flow of the cooling medium in the cooling medium circulation loop.

[0092] For example, the outlet of the one-way valve 180 is connected to the flow channel between the first pressure sensor 220 and the outlet of the first heat exchange channel 211.

[0093] In some possible implementations, the liquid replenishment assembly 100 also includes a liquid level sensor 170, which is disposed on the wall of the liquid storage tank 110. The liquid level sensor 170 is used to detect the liquid level in the liquid storage tank 110 so as to know the liquid level in the liquid storage tank 110 and thus facilitate corresponding operations based on the liquid level in the liquid storage tank 110.

[0094] like Figure 4 , Figure 5 As shown, in some possible embodiments, the liquid inlet 111 is located at the bottom of the liquid storage tank 110, and the liquid inlet 111 is located above the third port 121. This facilitates the discharge of liquid from the liquid storage tank 110 through the third port 121 by utilizing the height difference between the liquid inlet 111 and the third port 121, making it easier to discharge the liquid from the liquid storage tank 110 and facilitating operations such as cleaning the liquid storage tank 110.

[0095] For example, the third port 121 can be a quick-connect interface to facilitate the connection of the third port 121 to the connecting tube 50.

[0096] In some examples, a switch valve is provided at the third port 121. The switch valve is used to control the opening and closing of the third port 121. When replenishment and drainage are not required, the switch valve is in the closed state to close the third port 121.

[0097] In some examples, the third port 121 is a self-closing port. When the third port 121 is not connected to a corresponding port (e.g., the port of the connecting pipe 50), the third port 121 is in a closed state. When the third port 121 is connected to a corresponding port, the third port 121 is in an open state, and the third port 121 is connected to the corresponding port.

[0098] like Figure 4 , Figure 5 As shown, for example, the cooling capacity distribution unit 10 also includes a chassis 300, which can serve to support the liquid replenishment assembly 100 and the heat dissipation assembly 200. The heat exchanger 210, the drive pump 230, the liquid storage tank 110 and the liquid replenishment pump 130 are disposed inside the chassis 300, which can also protect the components disposed inside the chassis 300.

[0099] For example, the flow meter 240, the second pressure sensor 250, the third pressure sensor 260, the temperature sensor 270, and the flow control valve 280 can all be located inside the chassis 300.

[0100] For example, both the liquid supply interface 291 and the liquid return interface 292 are located outside the chassis 300 to facilitate the connection between the liquid supply interface 291 and the liquid return interface 292 and the heat dissipation device 20. The liquid supply interface 291 and the liquid return interface 292 can be fixedly connected to the chassis wall of the chassis 300.

[0101] In some examples, the third port 121 is located outside the chassis 300 to facilitate the connection of the third port 121 to the connecting pipe 50 and to drain liquid through the third port 121. The third port 121 can be fixedly connected to the wall of the chassis 300.

[0102] In some examples, the fifth port 141 is located outside the chassis 300 to facilitate communication between the fifth port 141 and the outside atmosphere. The fifth port 141 can be fixedly connected to the chassis wall of the chassis 300.

[0103] In some examples, the gas flow control unit 150 is located at the fifth port 141, outside the chassis 300, so that the user can operate the gas flow control unit 150.

[0104] In some examples, the gas flow control component 150 includes a plug that is detachably connected to the vent pipe 140 at the fifth port 141, and the plug is used to block the fifth port 141. In this way, the gas flow control component 150 has a simpler structure, occupies less space, and is easier to arrange.

[0105] For example, the sealing element can be a plug or a sealing cap.

[0106] In other examples, the gas flow control component 150 can be a control valve, for example, a needle valve or a ball valve.

[0107] In some possible implementations, the third port 121 and the fifth port 141 are located on the same side wall of the chassis 300. This allows operation of the third port 121 and the fifth port 141 from the same side of the chassis 300. For example, the connection of the third port 121 and the gas flow control component 150 at the fifth port 141 can be operated from the same side of the chassis 300, making operations such as replenishing liquid via the external replenishment container 40 more convenient.

[0108] For example, the chassis 300 includes a front panel 310 and a rear panel 320, which are respectively disposed on the front and rear sides of the chassis 300.

[0109] In some examples, both the third port 121 and the fifth port 141 are located on the rear panel 320.

[0110] In other examples, the third port 121 and the fifth port 141 may both be located on the front panel 310.

[0111] In some examples, the reservoir 110 is located near the rear panel 320.

[0112] In other examples, the liquid storage tank 110 may also be located in the middle of the chassis 300.

[0113] The positions of the liquid storage tank 110, the third port 121, and the fifth port 141 can be determined according to the arrangement of other components of the cooling distribution unit, and are not limited here.

[0114] In some examples, the front panel 310 is equipped with a control panel, and the cooling capacity distribution unit 10 also includes a controller. The control panel, the first pressure sensor 220, the second pressure sensor 250, the third pressure sensor 260, the temperature sensor 270, the liquid level sensor 170, the replenishment pump 130, and the drive pump 230 can all be electrically connected to the controller.

[0115] In some examples, the controller can generate commands for controlling the replenishment pump 130 based on instructions sent from the control panel. For example, the start and stop of the replenishment pump 130 can be controlled by operating the control panel.

[0116] In some examples, the controller can generate instructions for controlling the replenishment pump 130 based on information detected by the first pressure sensor 220. For example, when the pressure detected by the first pressure sensor 220 reaches a preset threshold, the controller can generate instructions to stop the replenishment pump 130.

[0117] In some examples, the controller can generate an alarm command based on the liquid level information detected by the liquid level sensor 170. For example, when the liquid level detected by the liquid level sensor 170 is greater than or equal to a first threshold, the controller can generate an alarm message indicating that the liquid level is too high; when the liquid level detected by the liquid level sensor 170 is less than or equal to a second threshold, the controller can generate an alarm message indicating that the liquid level is too low.

[0118] like Figure 5 As shown, in some possible embodiments, the vent 112 is located on the top wall of the liquid storage tank 110. A float 190 and a limiting mechanism 160 are provided at the vent 112. Both the float 190 and the limiting mechanism 160 are located inside the liquid storage tank 110. The float 190 can float above the liquid stored in the liquid storage tank 110, and the limiting mechanism 160 is used to limit the range of movement of the float 190.

[0119] Figure 9 for Figure 4 The diagram shows the cold energy distribution unit provided in the diagram after the liquid level in the storage tank reaches the preset height.

[0120] like Figure 9As shown, within the movement range of the float 190, the float 190 can rise as the liquid level in the storage tank 110 rises and fall as the liquid level in the storage tank 110 falls. The float 190 is used to block the vent 112 when the liquid level in the storage tank 110 reaches a preset height, and to release the blockage of the vent 112 when the liquid level in the storage tank 110 is lower than the preset height.

[0121] In this way, when replenishing the liquid in the storage tank 110, after the liquid level in the storage tank 110 reaches the preset height, the float ball 190 blocks the vent 112, thus isolating the inner cavity of the storage tank 110 from the outside atmosphere, so that the inner cavity of the storage tank 110 is in a sealed state. At this time, the cooling medium in the external replenishment container 40 can no longer flow into the storage tank 110, and replenishment of the storage tank 110 can be stopped, so that the cooling medium in the storage tank 110 is not easy to overflow through the vent 112.

[0122] like Figure 5 As shown, in some possible embodiments, the limiting mechanism 160 includes an isolation net 161, which is located at the vent 112. The isolation net 161 and the tank wall of the liquid storage tank 110 enclose an active space. The float 190 is located in the active space and can move up and down in the active space. The isolation net 161 is used to limit the range of movement of the float 190.

[0123] This facilitates control over the movement direction of the float 190, so that the float 190 can block the vent 112 after the liquid level in the storage tank 110 reaches the preset height.

[0124] For example, when the liquid level in the storage tank 110 is low, the isolation net 161 can support the float 190, that is, the float 190 can be suspended in the storage tank 110 through the isolation net 161.

[0125] For example, the isolation mesh 161 can be a stainless steel mesh.

[0126] In other examples, the limiting mechanism 160 may also include a pull rope, with its two ends connected to the float 190 and the wall of the storage tank 110, respectively. When the liquid level in the storage tank 110 is low, the float 190 can be suspended below the vent 112 by the pull rope. The pull rope can limit the movement range of the float 190, so that when the float 190 rises as the liquid level in the storage tank 110 rises, it can block the vent 112.

[0127] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cooling capacity distribution unit (10), characterized in that, Includes a heat dissipation component (200) and a liquid replenishment component (100); The fluid replenishment assembly (100) includes: The liquid storage tank (110) has a liquid inlet (111) and a vent (112), both of which are connected to the inner cavity of the liquid storage tank (110); The liquid inlet tube (120) has a first port, a second port and a third port (121), the first port being connected to the liquid inlet (111); A replenishing pump (130) is provided, with its inlet end connected to the second port and its outlet end connected to the heat dissipation assembly (200). The ventilation pipe (140) has a fourth port and a fifth port (141). The fourth port is connected to the ventilation port (112), and the fifth port (141) is connected to the outside atmosphere. The ventilation pipe (140) is provided with an air passage on / off control component (150), which is used to control the on / off of the air passage between the ventilation port (112) and the outside atmosphere.

2. The cooling capacity distribution unit (10) according to claim 1, characterized in that, Also includes the chassis (300); The liquid storage tank (110) and the replenishment pump (130) are located inside the chassis (300), while the third port (121) and the fifth port (141) are located outside the chassis (300). The gas path on / off control component (150) is located at the fifth port (141), and the gas path on / off control component (150) is located outside the chassis (300).

3. The cooling capacity distribution unit (10) according to claim 2, characterized in that, The gas path on / off control component (150) includes a plugging component, which is detachably connected to the vent pipe (140) at the fifth port (141) and is used to block the fifth port (141).

4. The cooling capacity distribution unit (10) according to claim 2, characterized in that, The third port (121) and the fifth port (141) are located on the same side wall of the chassis (300).

5. The cooling capacity distribution unit (10) according to claim 1, characterized in that, The vent (112) is located on the top wall of the liquid storage tank (110); The vent (112) is provided with a float (190) and a limiting mechanism (160). The float (190) and the limiting mechanism (160) are both located inside the liquid storage tank (110). The limiting mechanism (160) is used to limit the movement range of the float (190). The float (190) is used to block the vent (112) after the liquid level in the storage tank (110) reaches a preset height, and to release the blockage of the vent (112) when the liquid level in the storage tank (110) is lower than the preset height.

6. The cooling capacity distribution unit (10) according to claim 5, characterized in that, The limiting mechanism (160) includes an isolation net (161), which is located at the vent (112). The isolation net (161) and the tank wall of the liquid storage tank (110) form an active space. The float (190) is located in the active space and can move up and down in the active space. The isolation net (161) is used to limit the movement range of the float (190).

7. The cooling capacity distribution unit (10) according to claim 1, characterized in that, The liquid inlet (111) is located at the bottom of the liquid storage tank (110) and above the third port (121).

8. The cooling capacity distribution unit (10) according to any one of claims 1-7, characterized in that, The replenishment assembly (100) also includes a liquid level sensor (170), which is located on the wall of the storage tank (110) and is used to detect the liquid level in the storage tank (110).

9. The cooling capacity distribution unit (10) according to any one of claims 1-7, characterized in that, The fluid replenishment assembly (100) also includes a one-way valve (180). The one-way valve (180) is located between the replenishment pump (130) and the heat dissipation assembly (200). The outlet of the replenishment pump (130) is connected to the inlet of the one-way valve (180), and the outlet of the one-way valve (180) is connected to the heat dissipation assembly (200).

10. The cooling capacity distribution unit (10) according to any one of claims 1-7, characterized in that, The cooling capacity distribution unit (10) is a rack-mounted cooling capacity distribution unit.

11. A liquid-cooled cabinet, characterized in that, It includes a cabinet (30), a heat dissipation device (20), and a cooling distribution unit (10) as described in any one of claims 1-10. The heat dissipation device (20) and the cooling distribution unit (10) are both located inside the cabinet (30). The heat dissipation component (200) of the cooling distribution unit (10) is used to form a cooling medium circulation loop with the heat dissipation device (20).

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