Rack-mounted cooling capacity distribution unit and liquid cooling cabinet

Abstract

The embodiment of the utility model provides a rack-mounted cooling capacity distribution unit and a liquid cooling cabinet, and relates to the technical field of liquid cooling. The rack type cooling capacity distribution unit comprises a case, a heat dissipation assembly, an expansion tank and a reversing device. The machine box comprises an expansion tank maintenance part, and the expansion tank maintenance part is provided with an expansion tank liquid discharging connector. And the heat dissipation assembly and the expansion tank are arranged in the case. The expansion tank is connected with the heat dissipation assembly and the expansion tank drainage connector through the reversing device. Wherein the reversing device has a first communication state and a second communication state, and the reversing device can be switched between the first communication state and the second communication state. When the reversing device is in the first communication state, the expansion tank is communicated with the heat dissipation assembly, and the expansion tank is disconnected from the expansion tank drainage connector. And when the reversing device is in the second communication state, the expansion tank is communicated with the expansion tank drainage connector, and the expansion tank is disconnected from the heat dissipation assembly. In this way, the expansion tank can be maintained conveniently.

Description

Technical Field

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

[0002] Liquid cooling is a highly efficient heat dissipation method widely used in scenarios such as data centers.

[0003] A liquid-cooled cabinet is a device that dissipates heat through liquid cooling. In related technologies, a liquid-cooled cabinet includes a device to be cooled and a rack-mounted coolant distribution unit (CDU). The CDU includes a heat dissipation assembly and an expansion tank. The heat dissipation assembly is connected to the device to be cooled and forms a cooling medium circulation loop with the device, allowing the cooling medium to circulate. The heat generated by the device can be carried to the heat dissipation assembly by the cooling medium flowing in the circulation loop and dissipated through the heat dissipation assembly. The expansion tank is connected to the heat dissipation assembly and contains cooling medium and gas. The expansion tank is used to achieve pressure balance and cooling medium compensation in the cooling medium circulation loop.

[0004] Among related technologies, the expansion tank of a rack-mounted cold energy distribution unit is relatively difficult to maintain. Utility Model Content

[0005] The embodiments of this application aim to provide a rack-mounted cooling capacity distribution unit and a liquid-cooled cabinet to solve the problem that the expansion tank of the rack-mounted cooling capacity distribution unit is difficult to maintain in the prior art.

[0006] A first aspect of this application provides a rack-mounted cooling capacity distribution unit, which includes a chassis, a heat dissipation assembly, an expansion tank, and a reversing device. The chassis includes an expansion tank maintenance section with an expansion tank drain connector. The heat dissipation assembly and the expansion tank are housed within the chassis. The expansion tank is connected to the heat dissipation assembly and the expansion tank drain connector via the reversing device. The reversing device has a first connected state and a second connected state, and can switch between the two states. When the reversing device is in the first connected state, the expansion tank is connected to the heat dissipation assembly, and the expansion tank is disconnected from the expansion tank drain connector. When the reversing device is in the second connected state, the expansion tank is connected to the expansion tank drain connector, and the expansion tank is disconnected from the heat dissipation assembly.

[0007] The rack-mounted cooling capacity distribution unit provided in this application embodiment, when the reversing device is in the first connected state, the expansion tank can be used to achieve functions such as pressure balance of the cooling medium circulation loop, cooling medium compensation of the cooling medium circulation loop, and making the drive pump less prone to cavitation.

[0008] When it is necessary to drain the cooling medium from the expansion tank, the expansion tank drain connector can be connected to an external drain pipe accessory, and the reversing device can be switched to the second connected state. The expansion tank can then drain the cooling medium through the drain connector under the pressure of the air inside. At this time, the expansion tank is isolated from the cooling medium circulation loop. It is not necessary to disconnect the rack-mounted cooling capacity distribution unit from the device to be cooled, nor is it necessary to drain the cooling medium from the first heat exchange channel, the channel between the first heat exchange channel and the liquid supply connector, or the channel between the first heat exchange channel and the liquid return connector. This allows for the drainage of the cooling medium from the expansion tank. After maintenance of the expansion tank, it is not necessary to refill the first heat exchange channel, the channel between the first heat exchange channel and the liquid supply connector, or the channel between the first heat exchange channel and the liquid return connector. It is also not necessary to reconnect the rack-mounted cooling capacity distribution unit to the device to be cooled, making the maintenance of the expansion tank easier and less time-consuming. After completing the maintenance of the expansion tank, switch the reversing device to the first connected state, connecting the expansion tank to the cooling medium circulation loop. At this time, since the pressure inside the expansion tank is lower than the pressure in the cooling medium circulation loop, the cooling medium in the cooling medium circulation loop can flow into the expansion tank, thus replenishing the expansion tank.

[0009] Since maintenance of the expansion tank does not require disconnecting the rack-mounted cooling capacity distribution unit from the heat dissipation device, nor does it require draining the cooling medium from the first heat exchange channel, the channel between the first heat exchange channel and the liquid supply connector, or the channel between the first heat exchange channel and the liquid return connector, the cooling medium can circulate normally in the cooling medium circulation loop during expansion tank maintenance. This allows the rack-mounted cooling capacity distribution unit to provide cooling capacity during expansion tank maintenance. In other words, the expansion tank can be maintained online, minimizing the impact of expansion tank maintenance on the operation of the liquid cooling cabinet.

[0010] Since maintaining the expansion tank does not require draining the cooling medium from the first heat exchange channel, the channel between the first heat exchange channel and the liquid supply connector, and the channel between the first heat exchange channel and the liquid return connector, the amount of cooling medium that needs to be replaced is small, thus reducing the maintenance cost of the expansion tank.

[0011] By placing the expansion tank drain connector in the expansion tank maintenance section of the chassis, that is, by placing the expansion tank drain connector on the chassis, it is easier to connect the expansion tank drain connector to the external drain pipe accessory, so as to discharge the cooling medium in the expansion tank.

[0012] Optionally, the chassis includes a side panel assembly, a front panel, a rear panel, and a partition. The front panel is closable and connected to the front end of the side panel assembly, and the rear panel is connected to the rear end of the side panel assembly. The front panel, side panel assembly, and rear panel together form the internal cavity of the chassis. A partition is located between the front panel and the rear panel, dividing the internal cavity of the chassis into a first chamber located between the front panel and the partition, and a second chamber located between the partition and the rear panel. The expansion tank and heat dissipation components are located in the second chamber. By setting the partition to divide the internal cavity of the chassis into the first and second chambers, and placing the expansion tank and heat dissipation components in the second chamber, the requirements for hydraulic-electrical separation within the chassis are easily met. The partition includes an expansion tank maintenance section. In this case, components such as the expansion tank drain connector are located on the partition. When the front panel is opened, the expansion tank maintenance section is exposed, and maintenance of the expansion tank can be achieved through the opening structure at the front of the cabinet. When maintaining the expansion tank, it is not necessary to remove the rack-mounted cooling capacity distribution unit from the cabinet or disassemble the top plate of the chassis, making maintenance of the expansion tank easier while maintaining the hydraulic-electrical separation within the chassis. Furthermore, the structure used for maintaining the expansion tank occupies less space within the first chamber, facilitating the arrangement of electrical components and the structure used for maintenance within the first chamber.

[0013] Optionally, the chassis includes side panel assemblies, a front panel, and a rear panel. The front and rear panels are respectively connected to the front and rear ends of the side panel assemblies, and the front, side panel assemblies, and rear panels enclose the internal cavity of the chassis. One of the front and rear panels includes an expansion tank maintenance section. When the expansion tank maintenance section is located on the front panel, the expansion tank can be maintained through an opening at the front of the cabinet. When the expansion tank maintenance section is located on the rear panel, the expansion tank can be maintained through a maintenance port at the rear of the cabinet. Maintenance of the expansion tank does not require removing the rack-mounted cooling capacity distribution unit from the cabinet, nor does it require disassembling the chassis. Connecting accessories for maintaining the expansion tank and performing maintenance operations are convenient, making expansion tank maintenance relatively easy.

[0014] Optionally, the expansion tank is located between the heat dissipation assembly and the expansion tank maintenance section, so that the heat dissipation assembly is less likely to affect the connection of the expansion tank and the expansion tank maintenance section, such as the expansion tank drain connector, making the connection of the expansion tank and the expansion tank maintenance section more convenient.

[0015] Optionally, the reversing device includes a flow channel forming component and a control component. The flow channel forming component is located inside the chassis, and the expansion tank is connected to the heat dissipation assembly and the expansion tank drain connector via the flow channel forming component. The control component is located in the expansion tank maintenance section and is drive-connected to the flow channel forming component. The control component is used to control the switching of the reversing device between a first connected state and a second connected state. This drive-connection of the control component to the flow channel forming component facilitates manual control of the reversing device, eliminating the need for cables to control the reversing device, saving space within the chassis, and making the reversing device easier to arrange within the chassis. Located in the expansion tank maintenance section, the control component can be easily operated when maintenance of the expansion tank is required. The adjacent location of the control component and the expansion tank drain connector allows for the connection of external drain pipe accessories and the operation of the control component, making maintenance of the expansion tank more convenient.

[0016] Optionally, the expansion tank has inlet and outlet ports. The reversing device has a first port, a second port, and a third port. The first port is connected to the inlet and outlet ports, the second port is connected to the heat dissipation assembly, and the third port is connected to the expansion tank drain connector. When the reversing device is in the first connected state, the first port is connected to the second port, and the third port is disconnected from both the first and second ports. When the reversing device is in the second connected state, the first port is connected to the third port, and the second port is disconnected from both the first and third ports. This facilitates switching between the first and second connected states while allowing the expansion tank drain connector and heat dissipation assembly to connect to the expansion tank's inner cavity through the same inlet and outlet ports. It also simplifies the structure of the reversing device, making it easier to arrange within the chassis.

[0017] Optionally, the expansion tank maintenance unit is also equipped with an expansion tank air supply connector. The expansion tank has an air supply port, and the expansion tank air supply connector is connected to the air supply port. By setting up the expansion tank air supply connector and air supply port, it is convenient to realize online detection of the air pressure in the expansion tank and online air supply to the expansion tank. The operation is relatively simple and has little impact on the operation of the liquid cooling cabinet.

[0018] Optionally, the expansion tank includes a tank body and a gas-liquid separator disposed within the tank body. The gas-liquid separator divides the inner cavity of the tank body into a gas chamber and a liquid chamber. A reversing device communicates with the liquid chamber, and the tank body has a gas inlet that communicates with the gas chamber. By setting up the gas-liquid separator, gas-liquid separation can be achieved. By separating the gas and liquid within the expansion tank, the gas inside the expansion tank is less likely to dissolve in the cooling medium, thus preventing a drop in pressure inside the expansion tank due to gas dissolution. Gas-liquid separation also prevents gas contamination caused by the evaporation of the cooling medium. Furthermore, gas-liquid separation allows the expansion tank to respond quickly and linearly to pressure changes, resulting in more precise pressure control. By connecting the reversing device to the liquid chamber, the cooling medium in the gas-liquid separated expansion tank can be discharged. When the cooling medium is discharged from the expansion tank through the expansion tank drain connector, the gas in the expansion tank will not be discharged from the drain connector. The discharged cooling medium will not affect the gas in the expansion tank, thus helping to maintain the gas pressure in the expansion tank. By connecting the air inlet to the gas chamber, the gas-liquid separated expansion tank can be replenished with gas. The replenished gas will not affect the cooling medium.

[0019] Optionally, the expansion tank is tilted relative to the chassis to facilitate the placement of a larger capacity expansion tank within the chassis.

[0020] A second aspect of this application provides a liquid-cooled cabinet, which includes a cabinet body, a device to be cooled, and a rack-mounted cooling distribution unit as described in any of the above embodiments. Both the device to be cooled and the rack-mounted cooling distribution unit are housed within the cabinet body, and the heat dissipation components of the rack-mounted cooling distribution unit are used to form a cooling medium circulation loop with the device to be cooled. Attached Figure Description

[0021] 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.

[0022] Figure 1 A schematic diagram of a liquid-cooled cabinet provided for an embodiment of this application;

[0023] Figure 2 This application provides a schematic diagram illustrating the connection between a heat dissipation device and a rack-mounted cooling capacity distribution unit in an embodiment of the present application.

[0024] Figure 3 A schematic diagram of a rack-mounted cooling capacity distribution unit provided in an embodiment of this application;

[0025] Figure 4 A schematic diagram of another rack-mounted cooling capacity distribution unit provided in an embodiment of this application in one state;

[0026] Figure 5 for Figure 4 A schematic diagram of the rack-mounted cooling capacity distribution unit provided in another state;

[0027] Figure 6 A schematic diagram of yet another rack-mounted cooling capacity distribution unit is provided for embodiments of this application;

[0028] Figure 7 A schematic diagram of yet another rack-mounted cooling capacity distribution unit is provided for embodiments of this application;

[0029] Figure 8 A schematic diagram of yet another rack-mounted cooling capacity distribution unit is provided for embodiments of this application;

[0030] Figure 9 This application provides a schematic diagram of yet another rack-mounted cooling capacity distribution unit.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Rack-mounted cooling distribution unit; 20. Heat dissipation device; 30. Cabinet;

[0033] 100. Chassis; 110. Side panel assembly; 111. Top plate; 112. Bottom plate; 113. Left side panel; 114. Right side panel; 120. Front panel; 130. Rear panel; 140. Partition; 150. Expansion tank maintenance section; 151. First part; 152. Second part;

[0034] 200, Heat dissipation assembly; 210, Heat exchanger; 211, First heat exchange channel; 212, Second heat exchange channel; 220, Drive pump; 230, Flow control valve;

[0035] 300. Expansion tank; 310. Tank body; 320. Gas-liquid separator;

[0036] 400. Reversing device; 410. Flow channel forming component; 420. Control component;

[0037] 500, fluid replacement kit;

[0038] 610. Expansion tank drain connector; 620. Expansion tank gas supply connector; 630. Liquid supply connector; 640. Liquid return connector; 650. Liquid inlet connector; 660. Liquid outlet connector;

[0039] 710. First chamber; 720. Second chamber; 730. Gas chamber; 740. Liquid chamber;

[0040] 810. Display panel; 820. Control 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-cooled cabinet provided in an embodiment of this application. Figure 1 The perspective in the image is a forward-looking perspective.

[0047] like Figure 1 As shown, this application embodiment provides a liquid-cooled cabinet, which includes a cabinet body 30, a heat dissipation device 20, and a rack-mounted cooling capacity distribution unit 10. The rack-mounted cooling capacity distribution unit 10 and the heat dissipation device 20 are disposed inside the cabinet body 30.

[0048] For example, the front end of the cabinet 30 has an open structure, allowing the heat dissipation device 20 and the rack-mounted cooling distribution unit 10 to be installed in and removed from the cabinet 30 through the open structure at the front end. Furthermore, the open structure at the front end of the cabinet 30 also allows for maintenance of components such as the heat dissipation device 20 and the rack-mounted cooling distribution unit 10 installed within the cabinet 30.

[0049] In some examples, the rear end of the cabinet 30 has a maintenance port, which can be used to maintain components such as the heat dissipation device 20 and the rack-mounted cooling distribution unit 10 installed inside the cabinet 30.

[0050] Figure 2 This is a schematic diagram showing the connection between a heat dissipation device and a rack-mounted cooling distribution unit, as provided in an embodiment of this application. Figure 2 The direction indicated by the solid arrow is the direction of the cooling medium flow.

[0051] like Figure 2 As shown, the rack-mounted cooling distribution unit 10 includes a heat dissipation assembly 200, which is connected to the device to be cooled 20. The heat dissipation assembly 200 is used to form a cooling medium circulation loop with the device to be cooled 20 for circulating cooling medium. The heat generated by the device to be cooled 20 can be carried to the heat dissipation assembly 200 by the cooling medium flowing in the cooling medium circulation loop and dissipated through the heat dissipation assembly 200, so that the device to be cooled 20 can be dissipated more efficiently.

[0052] 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.

[0053] For example, the cabinet 30 may be provided with multiple heat dissipation devices 20, the heat dissipation component 200 may be connected to the multiple heat dissipation devices 20, and the heat dissipation component 200 may also be used to distribute and control the flow rate of the cooling medium flowing through each heat dissipation device 20.

[0054] For example, any heat dissipation device 20 may include, but is not limited to, a computing node, a switching node, a power node, etc.

[0055] After the cooling medium circulates in the cooling medium circulation loop for a period of time, a shortage of cooling medium circulation loop may occur due to reasons such as cooling medium leakage. In order to replenish the cooling medium circulation loop when it is short of liquid, in some examples, the rack-mounted cooling capacity distribution unit 10 may also include a liquid replenishment component 500. The liquid replenishment component 500 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.

[0056] Because pressure fluctuations may occur during the flow of the cooling medium in the cooling medium circulation loop, the rack-mounted cooling capacity distribution unit 10 also includes an expansion tank 300. The expansion tank 300 is connected to the heat dissipation assembly 200. The expansion tank 300 can be used to achieve pressure balancing and cooling medium compensation (e.g., thermal expansion compensation and leakage compensation) in the cooling medium circulation loop. Specifically, the expansion tank 300 contains both cooling medium and gas; that is, part of the space inside the expansion tank 300 contains cooling medium, and part of the space contains gas, with the cooling medium not completely filling the inner cavity of the expansion tank 300. The gas contained in the expansion tank 300 is used to achieve pressure balancing in the cooling medium circulation loop, allowing the expansion tank 300 to balance pressure changes in the cooling medium circulation loop. The cooling medium contained in the expansion tank 300 can be used to compensate for cooling medium fluctuations in the cooling medium circulation loop.

[0057] The size of the space for holding the cooling medium and the size of the space for holding the gas in the expansion tank 300 vary with the amount of cooling medium contained in the expansion tank 300.

[0058] For example, the gas contained in the expansion tank 300 may include, but is not limited to, nitrogen, air, etc.

[0059] For example, the cooling medium may include, but is not limited to, cooling water, cooling oil, fluorinated liquid, etc.

[0060] Figure 3 This is a schematic diagram of a rack-mounted 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.

[0061] like Figure 3 As 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.

[0062] For example, the rack-mounted cooling capacity distribution unit 10 also includes a liquid supply connector 630 and a liquid return connector 640. The outlet of the first heat exchange channel 211 is connected to the liquid supply connector 630, and the liquid supply connector 630 is connected 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 connector 630. The inlet of the first heat exchange channel 211 is connected to the liquid return connector 640, and the liquid return connector 640 is connected 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 connector 640. In this way, the connection between the rack-mounted cooling capacity distribution unit 10 and the device to be cooled 20 can be made more convenient.

[0063] In some examples, heat exchanger 210 can be a liquid-liquid heat exchanger, for example, 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. In this case, the cooling medium circulation loop can also be called a 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 circulating primary-side coolant in the primary-side circulation loop.

[0064] 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.

[0065] For example, the rack-mounted cooling capacity distribution unit 10 also includes an inlet connector 650 and an outlet connector 660. The outlet of the second heat exchange channel 212 is connected to the outlet connector 660, which is connected to the inlet of the cold source, so that the outlet of the second heat exchange channel 212 is connected to the inlet of the cold source through the outlet connector 660. The inlet of the second heat exchange channel 212 is connected to the inlet connector 650, which is connected to the outlet of the cold source, so that the inlet of the second heat exchange channel 212 is connected to the outlet of the cold source through the inlet connector 650. In this way, the connection between the rack-mounted cooling capacity distribution unit 10 and the cold source can be made more convenient.

[0066] For example, a flow control valve 230 may be provided between the outlet of the second heat exchange channel 212 and the liquid outlet connector 660. The flow control valve 230 can be used to control the flow rate of the primary side coolant flowing through the second heat exchange channel 212.

[0067] The heat dissipation assembly 200 also includes a drive pump 220, which is connected in series with the first heat exchange channel 211 between the liquid supply connector 630 and the liquid return connector 640. The drive pump 220 is used to drive the cooling medium to circulate in the cooling medium circulation loop. At this time, the expansion tank 300 can also play a role in preventing cavitation of the drive pump 220.

[0068] For example, the drive pump 220 is located between the outlet of the first heat exchange channel 211 and the liquid supply connector 630. That is, the liquid inlet of the drive pump 220 is connected to the outlet of the first heat exchange channel 211, and the liquid outlet of the drive pump 220 is connected to the liquid supply connector 630. At this time, the cooling medium flows into the drive pump 220 after heat exchange in the heat exchanger 210, so that the temperature of the cooling medium flowing through the drive pump 220 is lower and the drive pump 220 has a higher driving efficiency for the cooling medium.

[0069] For example, the replenishing component 500 is connected between the inlet of the drive pump 220 and the outlet of the first heat exchange channel 211, and the flow channel between the replenishing component 500 and the inlet of the drive pump 220 and the outlet of the first heat exchange channel 211 is in communication. Since the pressure between the inlet of the drive pump 220 and the outlet of the first heat exchange channel 211 is relatively low, and the flow channel between the replenishing component 500 and the inlet of the drive pump 220 and the outlet of the first heat exchange channel 211 is in communication, it is relatively easy to replenish the cooling medium circulation loop through the replenishing component 500.

[0070] For example, the expansion tank 300 is connected between the liquid inlet of the drive pump 220 and the outlet of the first heat exchange channel 211. The expansion tank 300 is used to communicate with the flow channel between the liquid inlet of the drive pump 220 and the outlet of the first heat exchange channel 211. This facilitates better pressure balance in the cooling medium circulation loop, cooling medium compensation in the cooling medium circulation loop, and reduces the likelihood of cavitation in the drive pump 220.

[0071] For example, the expansion tank 300 is connected between the inlet end of the drive pump 220 and the replenishment component 500, and the expansion tank 300 is used to communicate with the flow channel between the inlet end of the drive pump 220 and the replenishment component 500.

[0072] Figure 4 This is a schematic diagram of another rack-mounted cooling capacity distribution unit provided in an embodiment of this application in one state. Figure 4 The perspective in the text is a side view. Figure 4 In the middle, the front panel 120 covers the front end of the side panel assembly 110.

[0073] like Figure 4 As shown, the rack-mounted cooling distribution unit 10 also includes a chassis 100, and the heat dissipation component 200 and expansion tank 300 are all located inside the chassis 100. The chassis 100 can serve to support and protect the heat dissipation component 200 and expansion tank 300. The rack-mounted cooling distribution unit 10 is assembled inside the cabinet 30 through the chassis 100.

[0074] After the expansion tank 300 has been used for a period of time, due to reasons such as the infrequent flow of the cooling medium inside the expansion tank 300, the cooling medium inside the expansion tank 300 is prone to the growth of bacteria and other phenomena that lead to contamination of the cooling medium. After the cooling medium inside the expansion tank 300 is contaminated, it is necessary to drain the cooling medium inside the expansion tank 300 in order to maintain the expansion tank 300.

[0075] In related technologies, when it is necessary to drain the cooling medium from the expansion tank, the connection between the rack-mounted cooling capacity distribution unit and the device to be cooled must first be disconnected. Then, the cooling medium in the expansion tank, the first heat exchange channel, the channel between the first heat exchange channel and the liquid supply connector, and the channel between the first heat exchange channel and the liquid return connector must be drained. After maintenance of the expansion tank, the expansion tank, the first heat exchange channel, the channel between the first heat exchange channel and the liquid supply connector, and the channel between the first heat exchange channel and the liquid return connector need to be refilled with liquid. Then, the rack-mounted cooling capacity distribution unit must be reconnected to the device to be cooled, making the maintenance of the expansion tank difficult and time-consuming. Furthermore, disconnecting the rack-mounted cooling capacity distribution unit from the device to be cooled and draining the cooling medium from the first heat exchange channel, the channel between the first heat exchange channel and the liquid supply connector, and the channel between the first heat exchange channel and the liquid return connector will cause the rack-mounted cooling capacity distribution unit to be unable to continue providing cooling, which will significantly affect the normal operation of the liquid-cooled cabinet. In addition, the amount of cooling medium that needs to be replaced is large due to the discharge of cooling medium from the first heat exchange channel, the channel between the first heat exchange channel and the liquid supply connector, and the channel between the first heat exchange channel and the liquid return connector, resulting in high maintenance costs for the expansion tank.

[0076] like Figure 4 As shown, based on this, in this embodiment of the application, the chassis 100 includes an expansion tank maintenance section 150, which is provided with an expansion tank drain connector 610. The rack-mounted cooling capacity distribution unit 10 also includes a reversing device 400, through which the expansion tank 300 is connected to the heat dissipation assembly 200 and the expansion tank drain connector 610. The reversing device 400 has a first connected state and a second connected state, and can switch between the first connected state and the second connected state. When the reversing device 400 is in the first connected state, the expansion tank 300 is connected to the heat dissipation assembly 200 and disconnected from the expansion tank drain connector 610. When the reversing device 400 is in the second connected state, the expansion tank 300 is connected to the expansion tank drain connector 610 and disconnected from the heat dissipation assembly 200.

[0077] When the reversing device 400 is in the first connected state, the expansion tank 300 can be used to achieve pressure balance of the cooling medium circulation loop, cooling medium compensation of the cooling medium circulation loop, and to make the drive pump 220 less prone to cavitation.

[0078] When it is necessary to discharge the cooling medium in the expansion tank 300, the expansion tank drain connector 610 can be connected to the external drain pipe accessory, and the reversing device 400 can be switched to the second connected state. The expansion tank 300 can be drained through the expansion tank drain connector 610 under the action of the air pressure in the expansion tank 300. At this time, the expansion tank 300 is isolated from the cooling medium circulation loop. It is not necessary to disconnect the rack-mounted cold energy distribution unit 10 from the heat dissipation device 20, and it is not necessary to discharge the cooling medium in the first heat exchange channel 211, the channel between the first heat exchange channel 211 and the liquid supply connector 630, and the channel between the first heat exchange channel 211 and the liquid return connector 640. The cooling medium in the expansion tank 300 can be discharged. After maintenance of the expansion tank 300 is completed, it is not necessary to refill the first heat exchange channel 211, the channel between the first heat exchange channel 211 and the liquid supply connector 630, and the channel between the first heat exchange channel 211 and the liquid return connector 640. It is also not necessary to reconnect the rack-mounted cooling capacity distribution unit 10 to the heat dissipation device 20, making maintenance of the expansion tank 300 easier and less time-consuming. After maintenance of the expansion tank 300 is completed, the reversing device 400 is switched to the first connected state, connecting the expansion tank 300 to the cooling medium circulation loop. At this time, because the pressure inside the expansion tank 300 is lower than the pressure in the cooling medium circulation loop, the cooling medium in the cooling medium circulation loop can flow into the expansion tank 300, thus replenishing the expansion tank 300.

[0079] Since maintenance of the expansion tank 300 does not require disconnection of the rack-mounted cooling capacity distribution unit 10 from the heat dissipation device 20, and does not require discharge of the cooling medium in the first heat exchange channel 211, the channel between the first heat exchange channel 211 and the liquid supply connector 630, and the channel between the first heat exchange channel 211 and the liquid return connector 640, the cooling medium can circulate normally in the cooling medium circulation loop during maintenance of the expansion tank 300. This allows the rack-mounted cooling capacity distribution unit 10 to provide cooling capacity during the maintenance of the expansion tank 300. In other words, the expansion tank 300 can be maintained online, minimizing the impact of maintenance on the operation of the liquid-cooled cabinet.

[0080] Since maintaining the expansion tank 300 does not require draining the cooling medium from the first heat exchange channel 211, the channel between the first heat exchange channel 211 and the liquid supply connector 630, and the channel between the first heat exchange channel 211 and the liquid return connector 640, the amount of cooling medium that needs to be replaced is small, thus reducing the maintenance cost of the expansion tank 300.

[0081] By placing the expansion tank drain connector 610 in the expansion tank maintenance section 150 of the chassis 100, that is, by placing the expansion tank drain connector 610 on the chassis 100, it is easier to connect the expansion tank drain connector 610 to the external drain pipe accessory, so as to discharge the cooling medium in the expansion tank 300.

[0082] After completing the maintenance of the expansion tank 300 and replenishing the expansion tank 300 by allowing the cooling medium in the cooling medium circulation loop to flow into the expansion tank 300, if the pressure in the cooling medium circulation loop is less than the preset pressure, the cooling medium circulation loop can be replenished by the replenishment component 500.

[0083] For example, the expansion tank 300 is connected between the inlet of the drive pump 220 and the outlet of the first heat exchange channel 211 via a reversing device 400. When the reversing device 400 is in the first connected state, the expansion tank 300 is connected to the flow channel between the inlet of the drive pump 220 and the outlet of the first heat exchange channel 211 via the reversing device 400.

[0084] For example, the commutation device 400 is in communication with the space containing the cooling medium in the expansion tank 300. For instance, the commutation device 400 is in communication with the bottom of the space containing the cooling medium in the expansion tank 300.

[0085] For example, the reversing device 400 can be a reversing valve, such as a three-way reversing valve. The reversing valve can be, but is not limited to, a ball valve, a solenoid valve, etc.

[0086] For example, the expansion tank drain connector 610 can be a quick-connect connector. When the expansion tank drain connector 610 is not connected to the drain pipe accessory, the expansion tank drain connector 610 is in a sealed state. After the expansion tank drain connector 610 is connected to the drain pipe accessory, the expansion tank drain connector 610 is in communication with the drain pipe accessory.

[0087] In some possible implementations, the expansion tank 300 has inlet and outlet ports. The reversing device 400 has a first port, a second port, and a third port. The first port communicates with the inlet and outlet ports, the second port communicates with the heat dissipation assembly 200, and the third port communicates with the expansion tank drain connector 610. When the reversing device 400 is in the first connected state, the first port is connected to the second port, and the third port is disconnected from both the first and second ports. When the reversing device 400 is in the second connected state, the first port is connected to the third port, and the second port is disconnected from both the first and third ports.

[0088] This facilitates the switching of the commutator 400 between the first and second connected states, while also simplifying the structure of the commutator 400 for easy placement within the chassis 100.

[0089] The inlet and outlet ports are connected to the space within the expansion tank 300 that holds the cooling medium. For example, the inlet and outlet ports are connected to the bottom of the space within the expansion tank 300 that holds the cooling medium.

[0090] For example, the inlet and outlet can be located at the bottom of the expansion tank 300.

[0091] For example, the expansion tank drain connector 610 and the heat dissipation assembly 200 are connected to the inner cavity of the expansion tank 300 through the same inlet and outlet ports, which reduces the number of holes in the expansion tank 300 and facilitates the sealing of the expansion tank 300.

[0092] In some possible embodiments, the reversing device 400 may include a first connecting pipe, a second connecting pipe, a first on / off valve disposed on the first connecting pipe, and a second on / off valve disposed on the second connecting pipe. One end of the first connecting pipe is connected to the expansion tank 300, and the other end of the first connecting pipe is connected to the expansion tank drain connector 610. One end of the second connecting pipe is connected to the expansion tank 300, and the other end of the second connecting pipe is connected to the heat dissipation assembly 200. When the reversing device 400 is in the first connected state, the first on / off valve is closed, the second on / off valve is open, the flow path of the first connecting pipe is disconnected, and the flow path of the second connecting pipe is connected. When the reversing device 400 is in the second connected state, the first on / off valve is open, the second on / off valve is closed, the flow path of the first connecting pipe is connected, and the flow path of the second connecting pipe is disconnected.

[0093] like Figure 4 As shown, in some possible embodiments, the reversing device 400 is a manual reversing device. The reversing device 400 includes a flow channel forming component 410 and a control component 420. The flow channel forming component 410 is disposed inside the housing 100, and the expansion tank 300 is connected to the heat dissipation assembly 200 and the expansion tank drain connector 610 through the flow channel forming component 410. The control component 420 is disposed in the expansion tank maintenance section 150, and the control component 420 is drively connected to the flow channel forming component 410. The control component 420 is used to control the reversing device 400 to switch between a first connected state and a second connected state.

[0094] In this way, the reversing device 400 can be controlled manually, eliminating the need for cables to control it and saving space within the chassis 100. This also makes the placement of the reversing device 400 within the chassis 100 easier. By placing the control unit 420 in the expansion tank maintenance section 150, it is convenient to operate the control unit 420 when maintenance of the expansion tank 300 is required. The control unit 420 and the expansion tank drain connector 610 are located adjacent to each other, allowing for the connection of external drain pipe accessories and the operation of the control unit 420 in a convenient location, facilitating maintenance of the expansion tank 300.

[0095] For example, the flow channel forming component 410 may include a valve body and a valve core, and the control component 420 may include a handle or a knob, which is drively connected to the valve core.

[0096] After the rack-mounted cooling capacity distribution unit 10 has been running for a period of time, the gas pressure inside the expansion tank 300 may decrease due to slow gas leakage, cooling medium circulation loop, and dissolved gas in the cooling medium inside the expansion tank 300. When the gas pressure inside the expansion tank 300 decreases to a certain value, the expansion tank 300 will fail.

[0097] Therefore, such as Figure 4 As shown, in some possible embodiments, the expansion tank maintenance unit 150 is further provided with an expansion tank air supply connector 620, the expansion tank 300 has an air supply port, and the expansion tank air supply connector 620 is connected to the air supply port.

[0098] When maintaining the expansion tank 300, after draining the cooling medium from the expansion tank 300, the drain tank accessories can be removed, and the expansion tank air supply connector 620 can be connected to an external air supply device. The air supply device can be used to detect the air pressure inside the expansion tank 300. If the air pressure inside the expansion tank 300 is lower than the pre-charge pressure, air can be supplied to the expansion tank 300 to ensure that the air pressure inside the expansion tank 300 meets the usage requirements. After the air pressure inside the expansion tank 300 meets the requirements, the air supply device is removed. After removing the air supply device, the reversing device 400 is switched to the first connected state.

[0099] By setting up the expansion tank gas supply connector 620 and the gas supply port, it is easy to realize online detection of the gas pressure in the expansion tank 300 and online gas supply to the expansion tank 300. The operation is relatively simple and has little impact on the operation of the liquid cooling cabinet.

[0100] By setting the expansion tank air supply connector 620 in the expansion tank maintenance section 150, that is, by setting the expansion tank air supply connector 620 on the chassis 100, it is more convenient to connect the expansion tank air supply connector 620 to the external air supply device, so as to facilitate the detection of air pressure in the expansion tank 300 and the air supply in the expansion tank 300 chassis 100.

[0101] By setting the expansion tank air supply connector 620 in the expansion tank maintenance section 150, and placing the expansion tank air supply connector 620 and the expansion tank drain connector 610 in adjacent positions, the external drain pipe accessories and air supply device can be disassembled and installed in adjacent positions, making the operation of maintaining the expansion tank 300 more convenient.

[0102] For example, the gas inlet is connected to the gas-containing space within the expansion tank 300; for instance, the gas inlet may be connected to the top of the gas-containing space within the expansion tank 300.

[0103] For example, the air inlet can be located at the top of the expansion tank 300.

[0104] For example, the expansion tank air supply connector 620 can be a quick-connect connector. When the expansion tank air supply connector 620 is not connected to the air supply device, the expansion tank air supply connector 620 is in a sealed state. After the expansion tank air supply connector 620 is connected to the air supply device, the expansion tank air supply connector 620 is connected to the air supply device.

[0105] For example, the expansion tank maintenance section 150 includes a first part 151 and a second part 152, with the second part 152 located above the first part 151. The expansion tank drain connector 610 and the control component 420 are located in the first part 151, and the expansion tank gas supply connector 620 is located in the second part 152.

[0106] In some possible embodiments, the expansion tank 300 includes a tank body 310 and a gas-liquid separator 320 disposed within the tank body 310. The gas-liquid separator 320 divides the inner cavity of the tank body 310 into a gas chamber 730 and a liquid chamber 740. The gas chamber 730 forms a space for containing gas, that is, gas is contained within the gas chamber 730. The liquid chamber 740 forms a space for containing cooling medium, that is, cooling medium is contained within the liquid chamber 740. A reversing device 400 communicates with the liquid chamber 740, and the tank body 310 has a gas inlet that communicates with the gas chamber 730.

[0107] Gas-liquid separation can be achieved by incorporating the gas-liquid separator 320. This separation prevents the gas within the expansion tank 300 from dissolving in the cooling medium, thus reducing the risk of pressure drop due to gas dissolution. It also prevents gas contamination caused by the evaporation of the cooling medium. Furthermore, the gas-liquid separation allows the expansion tank 300 to respond quickly and linearly to pressure changes, resulting in more precise pressure control.

[0108] By connecting the reversing device 400 to the liquid chamber 740, the cooling medium in the gas-liquid separated expansion tank 300 can be discharged. When the cooling medium in the expansion tank 300 is discharged through the expansion tank drain connector 610, the gas in the expansion tank 300 will not be discharged from the expansion tank drain connector 610. The discharged cooling medium will not affect the gas in the expansion tank 300, which helps to maintain the gas pressure in the expansion tank 300. By connecting the air inlet to the gas chamber 730, the gas-liquid separated expansion tank 300 can be replenished with gas. The replenished gas will not affect the cooling medium.

[0109] The size of the gas chamber 730 and the size of the liquid chamber 740 vary with the amount of cooling medium contained in the liquid chamber 740.

[0110] For example, the gas-liquid separator 320 may include, but is not limited to, an elastic diaphragm, an air bladder, etc.

[0111] For example, the tank 310 has an inlet and outlet that are connected to the liquid chamber 740.

[0112] For example, the chassis 100 includes a side panel assembly 110, a front panel 120, and a rear panel 130. The front panel 120 and the rear panel 130 are respectively connected to the front and rear ends of the side panel assembly 110. That is, the front panel 120 is connected to the front end of the side panel assembly 110, and the rear panel 130 is connected to the rear end of the side panel assembly 110. The front panel 120, the side panel assembly 110, and the rear panel 130 surround and form the internal cavity of the chassis 100.

[0113] For example, the liquid supply connector 630 and the liquid return connector 640 may be provided on the rear panel 130 to facilitate the connection of the liquid supply connector 630 and the liquid return connector 640 with the heat dissipation device 20.

[0114] For example, the inlet connector 650 and the outlet connector 660 may be located on the rear panel 130 to facilitate the connection of the inlet connector 650 and the outlet connector 660 to a cold source.

[0115] For example, the rack-mounted cooling capacity distribution unit 10 also includes a display panel 810, which is located on the front panel 120.

[0116] In some possible embodiments, the front panel 120 includes an expansion tank maintenance section 150, that is, the expansion tank maintenance section 150 is located on the front panel 120, and the expansion tank drain connector 610 is provided on the front panel 120. When the expansion tank maintenance section 150 is provided with an expansion tank air supply connector 620, the expansion tank air supply connector 620 is provided on the front panel 120. When the expansion tank maintenance section 150 is provided with a control component 420, the control component 420 is provided on the front panel 120.

[0117] Thus, the expansion tank maintenance unit 150 is located on the front panel 120, and the drain pipe accessories, gas replenishment device, and operation control unit 420 can be connected through the opening structure at the front of the cabinet 30, making the connection of the drain pipe accessories, gas replenishment device, and operation control unit 420 convenient. When maintaining the expansion tank 300, it is not necessary to remove the rack-mounted cooling capacity distribution unit 10 from the cabinet 30 or disassemble the chassis 100; the expansion tank 300 can be maintained through the opening structure at the front of the cabinet 30, making the maintenance of the expansion tank 300 relatively easy.

[0118] When the expansion tank maintenance section 150 is located on the front panel 120, both the first part 151 and the second part 152 are located on the front panel 120.

[0119] In some possible embodiments where a maintenance port is provided at the rear end of the cabinet 30, the rear panel 130 includes an expansion tank maintenance section 150, that is, the expansion tank maintenance section 150 is located on the rear panel 130, and the expansion tank drain connector 610 is provided on the rear panel 130. When the expansion tank maintenance section 150 is provided with an expansion tank air supply connector 620, the expansion tank air supply connector 620 is provided on the rear panel 130. When the expansion tank maintenance section 150 is provided with a control component 420, the control component 420 is provided on the rear panel 130.

[0120] In this way, the expansion tank maintenance section 150 is located on the rear panel 130. It can be connected to the drain pipe accessories, the gas replenishment device, and the operation control component 420 through the maintenance port at the rear of the cabinet 30. Connecting the drain pipe accessories, the gas replenishment device, and the operation control component 420 is convenient. When maintaining the expansion tank 300, it is not necessary to remove the rack-mounted cooling capacity distribution unit 10 from the cabinet 30 or disassemble the chassis 100. The expansion tank 300 can be maintained through the maintenance port at the rear of the cabinet 30, making the maintenance of the expansion tank 300 easier.

[0121] When the expansion tank maintenance section 150 is located on the rear panel 130, both the first part 151 and the second part 152 are located on the rear panel 130.

[0122] like Figure 4 As shown, in some possible embodiments, the chassis 100 also includes a partition 140. The partition 140 is disposed between the front panel 120 and the rear panel 130, and the partition 140 divides the interior of the chassis 100 into a first chamber 710 located between the front panel 120 and the partition 140, and a second chamber 720 located between the partition 140 and the rear panel 130. The expansion tank 300 and the heat dissipation assembly 200 are disposed in the second chamber 720, and the first chamber 710 is used to house electrical components. In this way, the requirement of liquid-electric separation within the chassis 100 is easily met, so that when liquid leaks occur from the expansion tank 300 and the heat dissipation assembly 200, it is not easy to affect the electrical components housed in the first chamber 710.

[0123] For example, the rack-mounted cooling capacity distribution unit 10 also includes a control board 820, which is located in the first chamber 710 and on the partition 140. The control board 820 can be electrically connected to the display panel 810 via a cable located in the first chamber 710.

[0124] Figure 5 for Figure 4 The diagram shows the rack-mounted cooling capacity distribution unit in another state. Figure 5The perspective in the text is a side view. Figure 5 In the middle, the front panel 120 is in the open state.

[0125] like Figure 4 , Figure 5 As shown, in some examples where the chassis 100 also includes a partition 140, the front panel 120 is closably connected to the front end of the side panel assembly 110. The partition 140 includes an expansion tank maintenance section 150, meaning the expansion tank maintenance section 150 is located on the partition 140, and the expansion tank drain connector 610 is located on the partition 140. When the expansion tank maintenance section 150 is provided with an expansion tank air supply connector 620, the expansion tank air supply connector 620 is located on the partition 140. When the expansion tank maintenance section 150 is provided with a control component 420, the control component 420 is located on the partition 140.

[0126] Thus, after opening the front panel 120, the expansion tank maintenance section 150 is exposed. The drain pipe accessories, gas replenishment device, and operation control component 420 can be connected through the opening structure at the front of the cabinet 30, making these connections convenient. When maintaining the expansion tank 300, it is not necessary to remove the rack-mounted cooling capacity distribution unit 10 from the cabinet 30 or disassemble the top plate 111 of the chassis 100. Maintenance of the expansion tank 300 can be performed through the opening structure at the front of the cabinet 30, making maintenance of the expansion tank 300 easier. At this time, while meeting the requirements of liquid-electric separation within the chassis 100, maintenance of the expansion tank 300 can be achieved more easily. Furthermore, the structure used for maintaining the expansion tank 300 occupies less space within the first chamber 710, facilitating the arrangement of electrical components within the first chamber 710 and the structure used for maintaining the expansion tank 300.

[0127] When the expansion tank maintenance section 150 is located on the baffle 140, both the first part 151 and the second part 152 are located on the baffle 140.

[0128] In some examples, the front panel 120 can be detachably connected to the side panel assembly 110 via snap-fit, fastener connection, or other means.

[0129] In other examples, one side of the front panel 120 is hinged to the side panel assembly 110, and the opposite side of the front panel 120 can be detachably connected to the side panel assembly 110 by means of snap-fit, fastener connection, or other means.

[0130] In some possible implementations, the expansion tank 300 is located between the heat dissipation assembly 200 and the expansion tank maintenance section 150.

[0131] In this way, the heat dissipation component 200 is less likely to affect the connection between the expansion tank 300 and the expansion tank maintenance section 150, such as the expansion tank drain connector 610, making the connection between the expansion tank 300 and the expansion tank maintenance section 150 more convenient.

[0132] In some examples where the expansion tank maintenance section 150 is located on the front panel 120, the expansion tank 300 is located between the front panel 120 and the heat dissipation assembly 200, with the expansion tank 300 positioned close to the front panel 120.

[0133] In some examples where the expansion tank maintenance section 150 is located on the rear panel 130, the expansion tank 300 is located between the rear panel 130 and the heat dissipation assembly 200, with the expansion tank 300 positioned close to the rear panel 130.

[0134] In some examples where the expansion tank maintenance section 150 is located on the partition 140, the expansion tank 300 is located between the partition 140 and the heat dissipation assembly 200, and the expansion tank 300 is positioned close to the partition 140.

[0135] Figure 6 This application provides a schematic diagram of yet another rack-mounted cooling capacity distribution unit. Figure 6 The perspective in the image is a forward-looking perspective.

[0136] like Figure 6 As shown, the side panel assembly 110 includes a top panel 111, a bottom panel 112, a left side panel 113, and a right side panel 114. The top panel 111 and the bottom panel 112 are arranged vertically opposite each other, and the left side panel 113 and the right side panel 114 are arranged horizontally opposite each other. The top panel 111, the bottom panel 112, the left side panel 113, and the right side panel 114 are connected to form the side panel assembly 110. The front ends of the top panel 111, the bottom panel 112, the left side panel 113, and the right side panel 114 are connected to the front panel 120, and the rear ends of the top panel 111, the bottom panel 112, the left side panel 113, and the right side panel 114 are connected to the rear panel 130. A partition 140 is connected to the top panel 111, the bottom panel 112, the left side panel 113, and the right side panel 114.

[0137] like Figure 6 As shown, in some examples, the expansion tank 300 may be arranged close to the right side plate 114.

[0138] Figure 7 This application provides a schematic diagram of yet another rack-mounted cooling capacity distribution unit. Figure 7 The perspective in the image is a forward-looking perspective.

[0139] like Figure 7 As shown, in some other examples, the expansion tank 300 may be arranged close to the left side plate 113.

[0140] In some possible implementations, the expansion tank 300 is vertically positioned relative to the chassis 100.

[0141] Figure 8 This application provides a schematic diagram of yet another rack-mounted cooling capacity distribution unit. Figure 8 The perspective in the image is a forward-looking perspective.

[0142] like Figure 8 As shown, in some other possible embodiments, the expansion tank 300 is inclined relative to the chassis 100, that is, the central axis of the expansion tank 300 is inclined relative to the bottom plate 112 of the chassis 100.

[0143] This makes it easier to arrange a large-capacity expansion tank 300 inside the chassis 100.

[0144] For example, the angle between the central axis of the expansion tank 300 and the bottom plate 112 of the chassis 100 can be greater than 0° and less than or equal to 90°. The angle between the central axis of the expansion tank 300 and the bottom plate 112 of the chassis 100 can be determined according to the height of the inner cavity of the chassis 100 and the required capacity of the expansion tank 300.

[0145] In some examples, the expansion tank 300 may be arranged close to the right side panel 114 of the chassis 100, and the top of the expansion tank 300 may be tilted to the left relative to the bottom of the expansion tank 300.

[0146] Figure 9 This application provides a schematic diagram of yet another rack-mounted cooling capacity distribution unit. Figure 9 The perspective in the image is a forward-looking perspective.

[0147] like Figure 9 As shown, the expansion tank 300 can be arranged close to the left side plate 113 of the chassis 100, and the top of the expansion tank 300 can be tilted to the right relative to the bottom of the expansion tank 300.

[0148] 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 rack-mounted cooling capacity distribution unit (10), characterized in that, include: The chassis (100) includes an expansion tank maintenance section (150) and the expansion tank maintenance section (150) is provided with an expansion tank drain connector (610); A heat dissipation assembly (200) is disposed inside the chassis (100); An expansion tank (300) is disposed inside the chassis (100); A reversing device (400) is provided, through which the expansion tank (300) is connected to the heat dissipation assembly (200) and the expansion tank drain connector (610); The commutation device (400) has a first connected state and a second connected state, and the commutation device (400) is capable of switching between the first connected state and the second connected state; When the reversing device (400) is in the first connected state, the expansion tank (300) is connected to the heat dissipation assembly (200), and the expansion tank (300) is disconnected from the expansion tank drain connector (610); When the reversing device (400) is in the second connected state, the expansion tank (300) is connected to the expansion tank drain connector (610) and the expansion tank (300) is disconnected from the heat dissipation assembly (200).

2. The rack-mounted cooling capacity distribution unit (10) according to claim 1, characterized in that, The chassis (100) includes a side panel assembly (110), a front panel (120), a rear panel (130), and a partition (140); The front panel (120) is closable and connected to the front end of the side panel assembly (110), and the rear panel (130) is connected to the rear end of the side panel assembly (110). The front panel (120), the side panel assembly (110), and the rear panel (130) surround and form the inner cavity of the chassis (100). The partition (140) is disposed between the front panel (120) and the rear panel (130). The partition (140) divides the inner cavity of the chassis (100) into a first chamber (710) located between the front panel (120) and the partition (140), and a second chamber (720) located between the partition (140) and the rear panel (130). The expansion tank (300) and the heat dissipation assembly (200) are disposed in the second chamber (720). The partition (140) includes the expansion tank maintenance part (150).

3. The rack-mounted cooling capacity distribution unit (10) according to claim 1, characterized in that, The chassis (100) includes a side panel assembly (110), a front panel (120), and a rear panel (130); The front panel (120) and the rear panel (130) are respectively connected to the front and rear ends of the side panel assembly (110), and the front panel (120), the side panel assembly (110) and the rear panel (130) surround and form the inner cavity of the chassis (100); One of the front panel (120) and the rear panel (130) includes the expansion tank maintenance section (150).

4. The rack-mounted cooling capacity distribution unit (10) according to claim 1, characterized in that, The expansion tank (300) is located between the heat dissipation assembly (200) and the expansion tank maintenance section (150).

5. The rack-mounted cooling capacity distribution unit (10) according to any one of claims 1-4, characterized in that, The reversing device (400) includes a flow channel forming component (410) and a control component (420); The flow channel forming component (410) is disposed inside the chassis (100), and the expansion tank (300) is connected to the heat dissipation assembly (200) and the expansion tank drain connector (610) through the flow channel forming component (410); The control component (420) is located in the expansion tank maintenance section (150). The control component (420) is connected to the flow channel forming component (410). The control component (420) is used to control the reversing device (400) to switch between the first connected state and the second connected state.

6. The rack-mounted cooling capacity distribution unit (10) according to any one of claims 1-4, characterized in that, The expansion tank (300) has inlet and outlet ports; The commutation device (400) has a first port, a second port and a third port; The first port is connected to the liquid inlet / outlet, the second port is connected to the heat dissipation component (200), and the third port is connected to the expansion tank drain connector (610). When the commutation device (400) is in the first connected state, the first port is connected to the second port, and the third port is disconnected from both the first port and the second port; When the commutation device (400) is in the second connected state, the first port is connected to the third port, and the second port is disconnected from both the first port and the third port.

7. The rack-mounted cooling capacity distribution unit (10) according to any one of claims 1-4, characterized in that, The expansion tank maintenance unit (150) is also provided with an expansion tank air supply connector (620), the expansion tank (300) has an air supply port, and the expansion tank air supply connector (620) is connected to the air supply port.

8. The rack-mounted cooling capacity distribution unit (10) according to claim 7, characterized in that, The expansion tank (300) includes a tank body (310) and a gas-liquid separator (320) disposed within the tank body (310); The gas-liquid separator (320) divides the inner cavity of the tank (310) into a gas cavity (730) and a liquid cavity (740). The reversing device (400) is connected to the liquid cavity (740). The tank (310) has the gas inlet, which is connected to the gas cavity (730).

9. The rack-mounted cooling capacity distribution unit (10) according to any one of claims 1-4, characterized in that, The expansion tank (300) is inclined relative to the chassis (100).

10. A liquid-cooled cabinet, characterized in that, It includes a cabinet (30), a heat dissipation device (20), and a rack-mounted cooling distribution unit (10) as described in any one of claims 1-9; The heat dissipation device (20) and the rack-mounted cooling capacity distribution unit (10) are both located inside the cabinet (30). The heat dissipation component (200) of the rack-mounted cooling capacity distribution unit (10) is used to form a cooling medium circulation loop with the heat dissipation device (20).

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