Liquid cooling distribution unit and data center

Abstract

The embodiment of the application provides a liquid cooling distribution unit and a data center, relates to the technical field of data centers, and the liquid cooling distribution unit comprises a cabinet body and an electrical system and a waterway system arranged in the cabinet body, the electrical system is used for controlling and powering the waterway system, a partition plate of the cabinet body separates an inner cavity of the cabinet body into two chambers, high-voltage equipment such as a power converter of the electrical system is arranged in the upper chamber, and the waterway system is arranged in the lower chamber, so that the waterway system and the electrical system are isolated, and the risk of electrical sparking is reduced. In addition, ventilation openings are formed in the front and rear doors corresponding to the upper chamber of the cabinet body, so that air flows in the front and rear of the upper chamber, at this time, the power converter located in the upper chamber can be cooled by the fan itself, without the need for additional fans, so as to reduce the cost.

Description

Technical Field

[0001] This application relates to the technical field of integrated water and electricity cabinets, and more particularly to a liquid-cooled distribution unit and a data center. Background Technology

[0002] Liquid-cooled distribution units in related technologies typically include electrical components such as power converters, as well as water circuit components such as heat exchangers, liquid pumps, and pipes connected to the heat exchangers or liquid pumps. In the design, pipe layout is usually prioritized. After the water circuit system layout is completed, the available space inside the cabinet is used to install electrical components such as power converters. When leakage or spraying occurs in the pipes, it can cause electrical arcing in the electrical components, creating a secondary hazard and reducing the safety and stability of the liquid-cooled distribution unit. Utility Model Content

[0003] Embodiments of this application provide a liquid-cooled distribution unit and a data center to improve the safety and stability of the liquid-cooled distribution unit.

[0004] In a first aspect, embodiments of this application provide a liquid-cooled distribution unit, which includes a cabinet and a power converter and a water system disposed within the cabinet. The cabinet includes a partition, a top plate and a bottom plate opposite each other in the height direction, a front door and a rear door opposite each other in the depth direction, and two side plates opposite each other in the length direction. The partition is located between the top plate and the bottom plate in the height direction and divides the inner cavity of the cabinet into an upper chamber and a lower chamber arranged vertically in the height direction. The water system includes a heat exchanger, a primary side pipe for communicating with the primary side, and a secondary side pipe for communicating with the secondary side. The primary side pipe is connected to the heat exchanger, and the secondary side pipe is connected to the heat exchanger. The heat exchanger, the primary side pipe, and the secondary side pipe are all disposed in the lower chamber. An air inlet is provided on the front door, and an air outlet is provided on the rear door. The air inlet and the air outlet are respectively located at both ends of the upper chamber in the depth direction and are connected to the upper chamber. The power converter is disposed in the upper chamber, and the fan of the power converter faces the air inlet.

[0005] In this embodiment, by placing the power converter in the upper chamber and the water system in the lower chamber, with the upper and lower chambers separated by a partition and the upper chamber located above the lower chamber, leakage or condensation in the water system will not fall onto the power converter in the upper chamber. Even in the event of severe leakage, such as during water spraying, the partition will prevent the sprayed water from falling onto the power converter. Therefore, by placing the power converter in the upper chamber and the water system in the lower chamber, electrical arcing due to water contamination of the power converter can be effectively prevented, thus improving the safety of the liquid cooling distribution unit. Furthermore, since the air inlet and outlet are located at opposite ends of the upper chamber in the depth direction and are connected to the upper chamber, the airflow path, driven by the power converter's built-in fan, is as follows: air enters the upper chamber through the air inlet, passes through the power converter's housing, and then flows out through the air outlet. During airflow, it can essentially flow in a straight line, effectively reducing airflow resistance and increasing airflow velocity, thereby improving the heat dissipation capacity of the power converter. Therefore, the power converter's built-in fan can meet its cooling requirements, eliminating the need for an additional fan and reducing costs. Furthermore, in this embodiment, the airflow in the upper chamber can be effectively confined to a controllable path, preventing fan-driven airflow from entering the lower chamber and thus avoiding interference or damage to the components of the lower chamber's water system caused by leaking liquid.

[0006] In some embodiments, the partition connects to two side panels at both ends along its length and extends to the front and rear doors at both ends along its depth. The power converter includes an inverter module and a rectifier module arranged along the height of the partition. Air inlets and outlets are located at the ends of the inverter and rectifier modules along their depth, with the fans of the inverter and rectifier modules facing the air inlets. In this embodiment, by arranging the inverter and rectifier modules along their height, space in the length direction can be saved for other electrical components. Furthermore, the two high-power devices, the inverter and rectifier modules, can be placed together, facilitating unified management of high-current paths. For example, during wiring, the wiring path is clear and orderly, making it easier to distinguish, lay, and fix cables during construction, and facilitating maintenance. Because the fan faces the air inlet, and the air inlet and outlet are located at opposite ends of the inverter module and rectifier module in the depth direction, the airflow can enter through the air inlet in a roughly straight line under the action of the fan, pass through the inverter module and rectifier module, and then be discharged through the air outlet. The airflow resistance is small, thus improving the heat dissipation effect of the inverter module and rectifier module.

[0007] In some embodiments, the liquid-cooled distribution unit further includes a circuit board and a power module mounted on the circuit board. The power module powers the sensors of the water system. The circuit board is located on the side of the partition facing the top plate, and in the depth direction, it is positioned on the side of the power converter facing the rear door. The circuit board and the top plate are spaced apart in the height direction, for example, the circuit board and the top plate are parallel. In this embodiment, since the fan built into the power converter drives the airflow from the air inlet to the air outlet, and the circuit board is located between the power converter and the rear door, that is, the circuit board is located in the airflow path, thus effectively dissipating heat from the circuit board. In addition, since the circuit board and the top plate are parallel, they do not significantly affect the airflow path from the power converter to the air outlet, and therefore the presence of the circuit board does not affect the heat dissipation effect of the power converter.

[0008] In some embodiments, the liquid-cooled distribution unit also includes an auxiliary power supply and controller located in the upper chamber. The auxiliary power supply powers the water system, for example, providing power to various sensors and other electrical components within the water system. The controller controls the water system. The auxiliary power supply and controller are arranged along the length of the partition, positioned on one side of the power converter. In this embodiment, by placing the auxiliary power supply and controller on one side of the power converter along the length, the power converter (belonging to high-voltage equipment) and the auxiliary power supply and controller (belonging to low-voltage equipment) are separated along the length. This results in clear and orderly wiring, and allows for quick location of the target cable during maintenance, avoiding misoperation in a mixed wiring harness. Furthermore, separating the power converter and the auxiliary power supply and controller effectively isolates the electromagnetic interference from the high-voltage power converter to the low-voltage auxiliary power supply and controller, improving the operational stability of the auxiliary power supply and controller.

[0009] In some embodiments, the primary side outlet of the heat exchanger is located below the primary side inlet in the vertical direction. The primary side inlet pipe includes a main pipe extending in the vertical direction and a connecting bend connecting the main pipe and the primary side inlet of the heat exchanger. The primary side outlet pipe also includes a main pipe extending in the vertical direction and a connecting bend connecting the main pipe and the primary side outlet of the heat exchanger. A filter is installed on the main pipe of the primary side inlet pipe. Since the length of the primary side inlet pipe is greater than the length of the primary side outlet pipe, there is still space to install a Y-type filter after installing various sensors and valves, thus making the overall layout of the primary side pipeline more reasonable.

[0010] In some embodiments, the secondary side piping includes a secondary side outlet pipe for communicating with the secondary side outlet of the heat exchanger. The secondary side outlet pipe includes a main pipe and a filter. The main pipe extends along the height direction, and a flow meter for detecting the flow rate is installed in the middle section of the main pipe. The end of the main pipe facing the baffle is connected to the filter. The outer pipe of the filter extends perpendicularly to the height direction. The filter is used to filter the coolant delivered from the secondary side outlet to the main pipe. In this embodiment, by placing the filter horizontally and connecting it to the inlet at the top of the main pipe, even when the space in the lower chamber is insufficient in the height direction, the main pipe does not need to reserve installation space in the height direction for the filter. That is, most of the dimensions of the main pipe can be used as straight pipe sections upstream and downstream of the flow meter, thus still meeting the detection accuracy of the flow meter.

[0011] In some embodiments, the water system further includes two liquid pumps. The output ends of the two liquid pumps are connected to the secondary side inlet of the heat exchanger, and the input ends of the two liquid pumps are connected to the cooling load. The two liquid pumps are mounted side by side on the base plate, and the heat exchanger is located on the side of the two liquid pumps facing the partition in the height direction. In this embodiment, the liquid pumps are mounted on the base plate. Since the liquid pumps vibrate significantly during operation, mounting them on the base plate allows for the installation of vibration damping pads between the liquid pumps and the base plate, facilitating vibration isolation of the liquid pumps. Furthermore, the space between the heat exchanger and the liquid pumps effectively suppresses the transmission of vibration to the more delicate heat exchanger, thereby improving the service life of the heat exchanger.

[0012] In some embodiments, the secondary side piping further includes a secondary side liquid inlet pipe, which is used to connect to the secondary side liquid inlet of the heat exchanger. The secondary side liquid inlet pipe includes a first manifold and a second manifold. The first manifold is used to connect to the output ends of two liquid pumps, and the second manifold is used to connect to the input ends of two liquid pumps. The first and second manifolds extend along the length direction, and the two liquid pumps are arranged along the length direction. The first manifold is located between the two liquid pumps and the heat exchanger in the height direction. In this embodiment, the first and second manifolds extend along the length direction, which facilitates the connection between the first manifold and the output ends of the two liquid pumps, and also facilitates the connection between the second manifold and the input ends of the two liquid pumps. By setting the first and second manifolds, a three-way valve can be replaced to realize the parallel connection of the two liquid pumps, and the overall length of the piping can also be effectively reduced. In addition, various valves or sensors can be installed on the first and second manifolds to effectively alleviate the problem of insufficient length for installing various valves or sensors on the main pipeline.

[0013] In some embodiments, the secondary side inlet pipe further includes two first vibration damping pipes. These two first vibration damping pipes extend along the height direction and connect to the first manifold and the output ends of the two liquid pumps. For example, the ends of the two first vibration damping pipes facing the top plate along the height direction can both be connected to the first manifold, and the ends of the two first vibration damping pipes facing the bottom plate along the height direction can be connected to the output ends of the two liquid pumps respectively. The two first vibration damping pipes are used to buffer vibrations in the height direction. In this embodiment, the two first vibration damping pipes not only enable communication between the output ends of the two liquid pumps and the heat exchanger, but also provide a buffering effect in the height direction when the two liquid pumps vibrate, thereby effectively suppressing the impact of the two liquid pumps' vibrations on the heat exchanger in the height direction.

[0014] In some embodiments, the two first damping pipes and the first manifold are located between the heat exchanger and the two liquid pumps in the vertical direction. In this embodiment, by arranging the two first damping pipes and the first manifold between the heat exchanger and the two liquid pumps in the vertical direction, the space between the two liquid pumps and the heat exchanger can be effectively utilized, thereby improving the space utilization rate within the cabinet.

[0015] In some embodiments, the liquid-cooled distribution unit also includes a power distribution box, which is used to distribute electrical energy to the electrical components of the water system, such as the liquid pump. The power distribution box is located between the heat exchanger and the front door in the depth direction. In this embodiment, since the power distribution box has its own enclosure structure and usually has high sealing performance, placing the power distribution box in the lower enclosure, together with the water system, can prevent electrical arcing of the electrical components inside the power distribution box from occurring when the water system leaks or sprays water. Furthermore, it saves space in the upper chamber to accommodate electrical components with weaker isolation or sealing.

[0016] In some embodiments, the water system further includes a storage tank and a makeup tank, which are positioned vertically between the two liquid pumps and the heat exchanger. In this embodiment, by placing the storage tank and makeup tank within the space between the liquid pumps and the heat exchanger, the space between the liquid pumps and the heat exchanger is effectively utilized, thereby improving space utilization.

[0017] In some embodiments, the primary side inlet, primary side outlet, secondary side inlet, and secondary side outlet of the heat exchanger are all located on the side of the heat exchanger facing the rear door, and the primary side piping and secondary side piping are also located on the same side. In this embodiment, because the primary side piping and secondary side piping are located on the side of the heat exchanger facing the rear door, maintenance or repair of the primary side piping and secondary side piping is convenient after the rear door is opened. The location of the primary side inlet, primary side outlet, secondary side inlet, and secondary side outlet on the same side of the heat exchanger facilitates the connection of the primary side piping and secondary side piping to the heat exchanger.

[0018] Secondly, embodiments of this application provide a data center, which includes a cold load, a cooling device, and a liquid-cooled distribution unit as described in any of the first aspects above. The cooling device is used to cool the coolant, a primary side pipeline connects a heat exchanger and the cooling device, and a secondary side pipeline connects the heat exchanger and the cold load. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0020] Figure 1 A simplified schematic diagram of a data center structure provided in this application embodiment; Figure 2 An embodiment provides a schematic diagram of the structure of a liquid-cooled distribution unit; Figure 3 for Figure 2 A front view of the liquid-cooled distribution unit in the embodiment; Figure 4 for Figure 2 A schematic diagram of the cabinet structure in the embodiment; Figure 5 for Figure 2 Side view of the liquid cooling distribution unit in the embodiment; Figure 6 for Figure 2 A schematic diagram of the water system in the liquid-cooled distribution unit in the embodiment; Figure 7 for Figure 6 A schematic diagram of the connection between the primary side pipeline and the heat exchanger in the water system of the embodiment; Figure 8 for Figure 2 Another structural schematic diagram of the water system in the liquid-cooled distribution unit of the embodiment; Figure 9 for Figure 8 A schematic diagram of the connection between the secondary side pipeline and the heat exchanger in the water system of the embodiment.

[0021] Explanation of reference numerals in the attached figures: Z: Height direction; Y: Depth direction; X: Length direction; 1000, Data Center; 100, Cooling Equipment; 200, Cooling Load; 300, Liquid Cooling Distribution Unit; 10. Cabinet body; 101. Upper chamber; 102. Lower chamber; 11. Partition; 12. Top panel; 13. Bottom panel; 14. Front door; 141. Air inlet; 15. Rear door; 151. Air outlet; 16. Side panel; 17. Bracket; 20. Electrical system; 21. Distribution box; 22. Power converter; 221. Inverter module; 222. Rectifier module; 23. Auxiliary power supply; 24. Controller; 25. Circuit board; 26. Power module; 30. Water system; 31. Heat exchanger; 311. Primary side inlet; 312. Primary side outlet; 313. Secondary side inlet; 314. Secondary side outlet; 32. Liquid pump; 33. Filter; 34. Storage tank; 35. Make-up tank; 36. Flow meter; 37. Primary side piping; 371. Primary side inlet pipe; 3711. Main pipe; 3712. Connecting bend; 372. Primary side outlet pipe; 3721. Main pipe; 3722. Connecting bend; 38. Secondary side piping; 381. Secondary side inlet pipe; 3811. Main pipe; 3812. First manifold; 3813. Second manifold; 3814. First shock absorber pipe; 3815. Second shock absorber pipe; 3816. Connecting bend; 382. Secondary side outlet pipe; 3821. Main pipe; 3822. Connecting bend; 39. Seismic isolation section. Detailed Implementation

[0022] The following section will first explain some of the terms used in the embodiments of this application.

[0023] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] In this specification, the terms "vertical" and "parallel" are explained.

[0025] Perpendicularity: The perpendicularity defined in this application is not limited to an absolute perpendicular intersection (with an included angle of 90 degrees). It is permissible for non-absolute perpendicular intersections caused by factors such as assembly tolerances, design tolerances, and structural flatness. It is permissible for errors within a small angular range, such as an assembly error range of 80 to 100 degrees, which can all be understood as a perpendicular relationship.

[0026] Parallelism: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism, allowing for situations where the parallelism is not absolute due to factors such as assembly tolerances, design tolerances, and structural flatness. These situations may lead to the sliding mating part and the first door panel not being absolutely parallel, but this application also defines such situations as parallelism.

[0027] Primary side: This refers to the entire circulation system that obtains cooling capacity from the external environment or cold source and transfers it to the cooling medium (usually water or ethylene glycol solution). Its core task is to produce cooling capacity. For example, the primary side refers to the main circulation system between the external cold source and the liquid cooling distribution unit, which is responsible for obtaining low-temperature coolant (such as chillers, cooling towers, or natural cold sources) from the outside and supplying it to the secondary side after temperature regulation.

[0028] Secondary side: This refers to the system that obtains cooling from the primary side and distributes it directly to the cooling terminal equipment in the area (computer room) where the data center IT equipment is located through a closed-loop piping system. Its core task is to distribute and transfer cooling to the load points. For example, the secondary side refers to the internal circulation system where coolant is distributed from the liquid cooling distribution unit to the liquid-cooled servers or equipment to maintain a stable temperature to meet the equipment's requirements.

[0029] Cooling load: refers to a load that is designed to maintain a low temperature for a specific object (such as during normal operation). Cooling loads require the continuous removal of heat by the refrigeration system to operate normally.

[0030] Figure 1 This is a simplified structural diagram of a data center 1000 provided as an embodiment of this application. (Refer to...) Figure 1 The data center 1000 includes a cooling device 100, cooling loads 200, and a liquid cooling distribution unit (Thermal Management Unit, TMU) 300. The cooling loads 200 can be IT (Internet Technology) equipment or battery packs, etc. For example, the cooling device 100 can be a cooling tower. The cooling device 100 is located on the primary side, and the liquid cooling distribution unit 300 and the cooling loads 200 are located on the secondary side. The cooling device 100 is used to cool a first type of coolant. The liquid cooling distribution unit 300 is connected between the cooling device 100 on the primary side and the cooling loads 200 on the secondary side. The liquid cooling distribution unit 300 is used to distribute a second type of coolant, which has undergone heat exchange with the cooled first type of coolant, to different cooling loads 200, such as to different IT equipment or battery packs. As the central hub connecting the primary cooling device 100 and the secondary cooling load 200, the liquid-cooled distribution unit 300 needs to control and distribute coolant to cool different cooling loads 200. Therefore, the safety and stability requirements of the liquid-cooled distribution unit 300 are very high. However, some existing liquid-cooled distribution units 300 often experience leakage, spraying, or condensation in their water circuit components, leading to a risk of electrical arcing in the electrical components of the liquid-cooled distribution unit 300. Moreover, since some electrical components are high-voltage equipment with high heat dissipation requirements, additional fans are usually needed to cool these high-voltage equipment. This not only increases costs, but the airflow from the fans can also carry leaked coolant or condensation from the water circuit components to other electrical components within the liquid-cooled distribution unit 300, further increasing the risk of electrical arcing. It should be noted that high-voltage equipment refers to equipment that carries a large current, such as the power converter 22.

[0031] In this embodiment, the liquid-cooled distribution unit 300 separates the water and electricity components, placing the high-voltage electrical equipment in the water system and electrical components in different chambers. Through a well-designed air duct, the high-voltage equipment can dissipate heat independently, eliminating the need for additional fans. This significantly reduces the risk of electrical arcing caused by leakage or condensation in the water system, thus improving the stability of the liquid-cooled distribution unit 300. The specific structure of the liquid-cooled distribution unit 300 can be found in the embodiment shown in the following figures.

[0032] Figure 2 An embodiment provides a schematic diagram of the structure of a liquid-cooled distribution unit 300. Figure 2 The liquid cooling distribution unit 300 in the embodiment can be applied to Figure 1 In the embodiment, data center 1000, wherein, Figure 2 One of the side panels 16 is hidden to allow for a clearer view of the components inside the cabinet 10 of the liquid cooling distribution unit 300.

[0033] Reference Figure 2 The liquid cooling distribution unit 300 includes a cabinet 10 and an electrical system 20 and a water system 30 disposed within the cabinet 10. The electrical system 20 is used to supply power to the water system 30 and to control the water system 30.

[0034] The electrical system 20 includes one or more of the following: a distribution box 21, a power converter 22, an auxiliary power supply 23, a controller 24, a circuit board 25, and a power module 26 mounted on the circuit board 25.

[0035] The water system 30 includes a heat exchanger 31, a liquid pump 32, a pipeline connecting the heat exchanger 31 or the liquid pump 32, a filter 33, and one or more of various sensor components or valve components. The sensor components can be temperature sensors, pressure sensors, or flow meters 36, etc., and the valve components can be flow regulating valves or on / off valves, etc.

[0036] Reference Figure 2 In some embodiments, the cabinet 10 includes a partition 11, a top plate 12 and a bottom plate 13 opposite each other in the height direction Z of the cabinet 10, a front door 14 and a rear door 15 opposite each other in the depth direction Y of the cabinet 10, and two side plates 16 opposite each other in the length direction X of the cabinet 10. The partition 11 is located between the top plate 12 and the bottom plate 13 in the height direction Z, and the partition 11 is spaced apart from the top plate 12 and the bottom plate 13. For example, the partition 11 can be arranged parallel to the top plate 12 and the bottom plate 13. The partition 11 divides the inner cavity of the cabinet 10 into an upper chamber 101 and a lower chamber 102 arranged vertically in the height direction Z. It should be noted that, in this embodiment, after the cabinet 10 is installed, the bottom plate 13 faces the floor of the installation site, and the top plate 12 faces upward.

[0037] Figure 3 for Figure 2 The front view of the liquid cooling distribution unit 300 in the embodiment, that is, the view facing the depth direction Y, wherein the front door 14 is hidden so that the internal structure of the cabinet 10 can be observed.

[0038] It is understandable that the power converter 22 can be used to convert externally input DC power into AC power. For example, the power converter 22 can be an inverter module 221 (Direct Current to Alternating Current, DC / AC) to supply AC power to the electrical components in the electrical system 20 and water system 30 of the liquid-cooled distribution unit 300. The power converter 22 can also be used to convert externally input AC power into DC power. For example, the power converter 22 can be a rectifier module 222 (Alternating Current to Direct Current, AC / DC) to supply DC power to the electrical components in the electrical system 20 and water system 30 of the liquid-cooled distribution unit 300. Of course, the power converter 22 can also include both an inverter module 221 and a rectifier module 222. It is clear that the power converter 22 is connected to a large current and belongs to high-voltage electrical equipment. (Refer to...) Figure 2 and Figure 3To improve the stability of the liquid cooling distribution unit 300, the power converter 22 is located in the upper chamber 101, and the water system 30 is located in the lower chamber 102. By placing the power converter 22 in the upper chamber 101 and the water system 30 in the lower chamber 102, and separating the upper chamber 101 and the lower chamber 102 by a partition 11, with the upper chamber 101 located above the lower chamber 102, when the water system 30 leaks or produces condensate, it will not fall onto the power converter 22 in the upper chamber 101. Even if the water system 30 experiences severe leakage, such as when spraying water, the water will not fall onto the power converter 22 due to the isolation provided by the partition 11. Thus, by placing the power converter 22 in the upper chamber 101 and the water system 30 in the lower chamber 102, electrical arcing caused by water contact with the power converter 22 can be effectively prevented, thereby improving the safety of the liquid cooling distribution unit 300.

[0039] Furthermore, when the power converter 22 is cooled by its own fan 220, since the water system 30 is located in the lower chamber 102 and the power converter 22 is located in the upper chamber 101, the airflow generated by the fan 220 can effectively reduce the impact on the airflow in the lower chamber 102, thereby reducing the risk of the airflow generated by the fan 220 carrying the leakage of the water system 30 to other electrical components.

[0040] It is understood that the above-mentioned leakage or spraying refers to the leakage or spraying of coolant.

[0041] In order for the power converter 22 to meet its heat dissipation requirements through its own built-in fan 220, refer to Figure 2 and Figure 3In some embodiments, the front door 14 is provided with an air inlet 141 and the rear door 15 is provided with an air outlet 151. The air inlet 141 and the air outlet 151 are located at both ends of the upper chamber 101 in the depth direction Y and are connected to the upper chamber 101, so that the air inlet 141, the air outlet and the upper chamber 101 connecting the air inlet 141 and the air outlet 151 form an air duct extending from the air inlet 141 to the air outlet 151. That is, after the air enters from the air inlet 141, it can pass through the upper chamber 101 and flow out through the air outlet 151. The power converter 22 is located inside the upper chamber 101, and its fan 220 faces the air inlet 141. This means the power converter 22 is essentially located within an air duct, with the fan 220 positioned on the side facing the air inlet 141. Under the action of the fan 220, the airflow path is as follows: air enters the upper chamber 101 from the air inlet 141, passes through the housing of the power converter 22, then through the upper chamber 101 again, and finally exits through the air outlet. During this airflow, it can essentially flow in a straight line, effectively reducing air resistance and increasing airflow speed, thereby improving the heat dissipation capacity of the power converter 22. Therefore, the built-in fan 220 of the power converter 22 is sufficient to meet its heat dissipation requirements, eliminating the need for an additional fan and reducing costs. In addition, in this embodiment, under the action of the fan 220, the air can flow smoothly from the air inlet 141 of the front door 14 to the air outlet 151 of the rear door 15 in a roughly straight line. That is, the air flow can be effectively restricted to a controllable path, thereby preventing the airflow blown by the fan 220 from entering the lower chamber 102, and thus preventing the airflow from carrying leakage liquid from interfering with or damaging the various components of the water system 30 of the lower chamber 102.

[0042] Furthermore, since the air inlet 141 is located on the front door 14 and the air outlet 151 is located on the rear door 15, and both the front door 14 and the rear door 15 are for opening to facilitate maintenance or repair, when installing the liquid cooling distribution unit 300, space is usually left for opening the front door 14 and the rear door 15, rather than directly attaching them to the wall or other equipment. Therefore, in this embodiment, the location of the air inlet 141 on the front door 14 and the air outlet 151 on the rear door 15 will not affect the normal installation of the liquid cooling distribution unit 300.

[0043] Figure 4 for Figure 2 A schematic diagram of the structure of the cabinet 10 in the embodiment. Figure 4 A side panel 16 is also hidden to allow observation of the interior of the cabinet 10.

[0044] Reference Figure 4The partition 11 extends to the two side plates 16 at both ends in the length direction X and is connected to the two side plates 16. The partition 11 also extends to the front door 14 and the rear door 15 at both ends in the depth direction Y. However, the partition 11 is not connected to the front door 14 and the rear door 15 so that the front door 14 and the rear door 15 can be opened and closed normally. When the front door 14 and the rear door 15 are closed, the two ends of the partition 11 in the depth direction Y are in direct contact with the front door 14 and the rear door 15 or the gap is very small. This allows the upper chamber 101 and the lower chamber 102 to be basically completely isolated by the partition 11. This is to prevent the airflow in the upper chamber 101 from interfering with the airflow in the lower chamber 102, or the airflow in the lower chamber 102 from interfering with the upper chamber 101. It can also prevent liquid from leaking into the upper chamber 101 when it leaks from the lower chamber 102.

[0045] The upper chamber 101 is formed by the upper part of the partition 11, the top plate 12, the front door 14, the rear door 15, and the two side plates 16. The lower chamber 102 is formed by the lower part of the partition 11, the top plate 12, the front door 14, the rear door 15, and the two side plates 16. That is, the front door 14, the rear door 15, and the two side plates 16 participate in the enclosure of both the upper chamber 101 and the lower chamber 102.

[0046] Of course, it is understandable that the upper chamber 101 and the lower chamber 102 may not be completely sealed off. For example, it is acceptable to leave a gap between the partition 11 and the front door 14 or the rear door 15.

[0047] Reference Figures 2-4 In some embodiments, the power converter 22 includes both an inverter module 221 and a rectifier module 222, which are arranged along the height direction Z on a partition 11. The partition 11 supports the inverter module 221 and the rectifier module 222. By arranging the inverter module 221 and the rectifier module 222 along the height direction Z, space in the length direction X can be saved for placing other electrical components. Furthermore, placing the two high-voltage devices, the inverter module 221 and the rectifier module 222, together facilitates unified management of high-current paths. For example, during wiring, the wiring route is clear and orderly, making it easier to distinguish, lay, and fix cables during construction, and facilitating maintenance.

[0048] To ensure that the inverter module 221 and rectifier module 222 can meet their own heat dissipation needs using their built-in fans 220, in some embodiments, the air inlet 141 and air outlet 151 are located at opposite ends of the inverter module 221 and rectifier module 222 in the depth direction Y, with the fans 220 of both modules facing the air inlet 141. Since the fans 220 face the air inlet 141, and the air inlet 141 and air outlet 151 are located at opposite ends of the inverter module 221 and rectifier module 222 in the depth direction Y, airflow can enter through the air inlet 141 in a roughly straight line under the action of the fans 220, pass through the inverter module 221 and rectifier module 222, and then exit through the air outlet 151. This results in low airflow resistance and thus improves the heat dissipation effect of the inverter module 221 and rectifier module 222.

[0049] Reference Figure 2 In some embodiments, the air inlet 141 can be a mesh composed of multiple small holes, and the air outlet 151 can be a mesh composed of multiple small holes. In other embodiments, a filter screen can be provided at both the air inlet 141 and the air outlet 151.

[0050] Reference Figure 2 In some embodiments, the front door 14, which encloses most of the upper part of the upper chamber 101, can have small holes to collectively form an air inlet 141. Similarly, the rear door 15, which encloses most of the upper part of the upper chamber 101, can have small holes to collectively form an air outlet 151. Of course, in other embodiments, since the power converter 22 is a high-voltage electrical device with high heat dissipation requirements, the front door 14 can have an air inlet 141 only at a position directly opposite the power converter 22 in the depth direction Y, and the rear door 15 can have an air outlet 151 only at a position directly opposite the power converter 22 in the depth direction Y.

[0051] Reference Figure 3 The auxiliary power supply 23 can provide a stable current to the controller 24, various sensors, valves, or pump 32, etc. For example, when the main power supply fails, the auxiliary power supply 23 can supply power to various electrical components. The controller 24 is used to control the opening or closing of various sensors, valves, and pump 32, etc. For example, it can control the water system 30 to supply different cooling loads 200 on the secondary side (such as...). Figure 1Distribute coolant. In some embodiments, the auxiliary power supply 23 and controller 24 are located in the upper chamber 101. For example, the auxiliary power supply 23 and controller 24 can be arranged along the length direction X on the partition 11, with the auxiliary power supply 23 and controller 24 located on one side of the power converter 22 in the length direction X. It is understood that the auxiliary power supply 23 and controller 24 carry a smaller current than the power converter 22 and are considered low-voltage devices. By placing the auxiliary power supply 23 and controller 24 on one side of the power converter 22 in the length direction X, the power converter 22 (which is a high-voltage device) and the auxiliary power supply 23 and controller 24 (which are low-voltage devices) can be separated in the length direction X. This results in clear and orderly wiring during cabling and allows for quick location of the target cable during maintenance, avoiding misoperation in a mixed wiring harness. Furthermore, separating the power converter 22, auxiliary power supply 23, and controller 24 can effectively isolate the electromagnetic interference from the high-voltage power converter 22 to the low-voltage auxiliary power supply 23 and controller 24, thereby improving the operational stability of the auxiliary power supply 23 and controller 24.

[0052] Reference Figure 3 In some embodiments, the auxiliary power supply 23 and the controller 24 are arranged along the length direction X. Of course, in other embodiments, the auxiliary power supply 23 and the controller 24 may also be arranged along the height direction Z.

[0053] Reference Figure 2 In some embodiments, space is left between the power converter 22 and the rear door 15. That is, after the power converter 22 is placed in the upper chamber 101, the power converter 22 does not fill the upper chamber 101 completely, and other electrical components can be installed in the upper chamber 101. In order to improve the space utilization efficiency of the upper chamber 101, a circuit board 25 is also provided in the upper chamber 101. The circuit board 25 is equipped with a power module 26, which can be used to supply power to sensors and other components of the water system 30.

[0054] Understandably, the heat dissipation requirements of circuit board 25 are usually also high. In order to improve the heat dissipation of circuit board 25 while avoiding affecting the heat dissipation of power converter 22, refer to Figure 2 and Figure 3In some embodiments, the circuit board 25 is disposed on the side of the partition 11 facing the top plate 12. The circuit board 25 is located in the depth direction Y on the side of the power converter 22 facing the rear door 15. The circuit board 25 and the top plate 12 are spaced apart in the height direction Z, for example, the circuit board 25 is arranged parallel to the top plate 12. The space between the circuit board 25 and the top plate 12 forms an air duct, which extends from the power converter 22 to the air outlet 151 in the depth direction Y. First, since the fan 220 of the power converter 22 drives the airflow from the air inlet 141 to the air outlet, and the circuit board 25 is located between the power converter 22 and the rear door 15, that is, on the path of the airflow, the circuit board 25 can be effectively cooled. Furthermore, since the circuit board 25 and the top plate 12 are spaced apart in the height direction Z, the airflow path from the power converter 22 to the air outlet 151 is not significantly affected, and the cooling effect of the power converter 22 is not affected by the presence of the circuit board 25.

[0055] It is understood that in some other embodiments, the circuit board 25 may also be disposed on the side plate 16, for example, parallel to the side plate 16. In this case, heat dissipation of the circuit board 25 can also be improved while avoiding affecting the heat dissipation of the power converter 22.

[0056] Reference Figure 2 The distribution box 21 can be used to distribute and transmit the input current to the liquid pump 32, controller 24, various sensors or valves, etc. In some embodiments, the distribution box 21 is located in the lower chamber 102 and close to the front door 14, so that it is convenient to maintain or operate the distribution box 21 after opening the front door 14. Moreover, since the distribution box 21 has its own box structure, it usually has high sealing performance. Therefore, by placing the distribution box 21 in the lower box and placing it together with the water system 30, when the water system 30 leaks or sprays water, the isolation of the box of the distribution box 21 can prevent electrical arcing of the electrical components inside the distribution box 21. It can also save space in the upper chamber 101 to place electrical components with poor isolation or sealing.

[0057] Reference Figure 2 The cabinet 10 also includes a bracket 17 on the frame connecting the side panel 16 or the cabinet 10. The bracket 17 is located between the bottom plate 13 and the partition 11. The distribution box 21 is mounted on the bracket 17 and spaced apart from the bottom plate 13, so that in the event of leakage, too much leakage can be prevented from entering the distribution box 21.

[0058] Figure 5 for Figure 2 Side view of the liquid cooling distribution unit 300 in the embodiment. Figure 5 One of the side panels 16 is also hidden to allow for observation of the internal structure of the cabinet 10. (See reference...) Figure 2 and Figure 5 In some embodiments, the piping of the water system 30 includes a primary side piping 37 (e.g., Figure 6 ) and secondary side piping 38, primary side piping 37 is used to connect heat exchanger 31 and primary side cooling equipment 100 (such as Figure 1 Secondary side piping 38 is used to connect heat exchanger 31 and the secondary side cooling load 200 (e.g., Figure 1 Various sensors and valves can be installed on the primary side pipeline 37 and the secondary side pipeline 38.

[0059] In some embodiments, the primary side pipe 37 and the secondary side pipe 38 are located on the side facing the rear door 15 so that the primary side pipe 37 and the secondary side pipe 38 can be easily repaired or maintained when the rear door 15 is opened.

[0060] In some embodiments, the heat exchanger 31 and the liquid pump 32 are located near the front door 14 to facilitate maintenance or repair of the heat exchanger 31 and the liquid pump 32 when the front door 14 is opened. Furthermore, because the heat exchanger 31 and the liquid pump 32 are located near the front door 14, more space is available on the side of the lower chamber 102 near the rear door 15 to accommodate the primary side piping 37 and the secondary side piping 38. In the vertical direction Z, the primary side piping 37 and the secondary side piping 38 also have more space to accommodate the installation of longer pipes, such as pipes equipped with flow meters 36.

[0061] In some embodiments, the heat exchanger 31 is located above the liquid pump 32 in the height direction Z, and there is a space between the heat exchanger 31 and the liquid pump 32. The liquid pump 32 is mounted on the base plate 13. Since the liquid pump 32 vibrates significantly during operation, mounting the liquid pump 32 on the base plate 13 facilitates vibration isolation of the liquid pump 32 and can effectively suppress the transmission of vibration to the relatively delicate heat exchanger 31, thereby improving the service life and safety of the heat exchanger 31.

[0062] In some embodiments, the heat exchanger 31 is mounted on the bracket 17, and in the depth direction Y, the electrical distribution box 21 is located between the heat exchanger 31 and the front door 14.

[0063] In some embodiments, the water system 30 also includes a storage tank 34 and a replenishment tank 35, which are used to provide coolant and replenish coolant to the water system 30. For example, the storage tank 34 and the replenishment tank 35 can be connected to the secondary side pipeline 38. The storage tank 34 and the replenishment tank 35 are located in the space between the liquid pump 32 and the heat exchanger 31 to effectively utilize the space between the liquid pump 32 and the heat exchanger 31 and improve space utilization.

[0064] In some embodiments, the storage tank 34 and the replenishment tank 35 are arranged along the length direction X. Of course, in other embodiments, they can be arranged in other ways, such as along the depth direction Y.

[0065] In some embodiments, the storage tank 34 and the replenishment tank 35 can be fixed to the bracket 17 or to the side plate 16. A gap should be left between the storage tank 34 and the replenishment tank 35 and the liquid pump 32 to effectively suppress the transmission of vibration to the storage tank 34 and the replenishment tank 35 and reduce the risks caused by vibration.

[0066] Figure 6 for Figure 2 A schematic diagram of the water system 30 in the liquid-cooled distribution unit 300 in the embodiment. Figure 7 for Figure 6 A schematic diagram of the connection between the primary side pipe 37 and the heat exchanger 31 in the water system 30 of the embodiment.

[0067] Reference Figure 6 and Figure 7 In some embodiments, the primary side pipe 37 includes a primary side inlet pipe 371 and a primary side outlet pipe 372. The outlet of the primary side inlet pipe 371 is used to communicate with the primary side inlet port 311 of the heat exchanger 31, and the inlet of the primary side inlet pipe 371 is used to communicate with the primary side cooling device 100 (e.g., Figure 1 The primary side liquid outlet pipe 372 is connected to the primary side liquid outlet 312 of the heat exchanger 31, and the outlet of the primary side liquid outlet pipe 372 is used to connect to the primary side cooling device 100. Through the primary side liquid inlet pipe 371 and the primary side liquid outlet pipe 372, the primary side cooling device 100 and the heat exchanger 31 are connected, so that the coolant after cooling by the cooling device 100 can be transported to the heat exchanger 31.

[0068] In some embodiments, the primary side inlet pipe 371 includes a main pipe 3711 extending along the height direction Z and a connecting bend 3712 connecting the main pipe 3711 and the primary side inlet 311 of the heat exchanger 31. The connecting bend 3712 is a bend of approximately 90 degrees, so that the connection between the main pipe 3711 extending along the height direction Z and the primary side inlet 311 of the heat exchanger 31 is more convenient. Since the main pipe 3711 extends along the height direction Z, the height space inside the cabinet 10 can be utilized efficiently. Moreover, the extension of the main pipe 3711 along the height direction Z reduces the difficulty of supporting and fixing the main pipe 3711. In addition, the extension of the main pipe 3711 along the height direction Z also facilitates the discharge of gas inside the main pipe 3711. Furthermore, the extension of the main pipe 3711 along the height direction Z concentrates the main part of the main pipe 3711 on one side of the rear door 15 of the cabinet 10, which facilitates the installation or maintenance of various valves or sensors installed on the main pipe 3711.

[0069] In some embodiments, the primary side liquid outlet pipe 372 also includes a main pipe 3721 extending along the height direction Z and a connecting bend 3722 connecting the main pipe 3721 and the primary side liquid outlet 312 of the heat exchanger 31. Since the main pipe 3721 of the primary side liquid outlet pipe 372 also extends along the height direction Z, it can make efficient use of the height space inside the cabinet 10, just like the primary side liquid inlet pipe 371, reducing the difficulty of supporting and fixing the main pipe 3721, facilitating the discharge of gas in the main pipe 3721, and also facilitating the installation or maintenance of various valves or sensors installed on the main pipe 3721.

[0070] In some embodiments, the primary side outlet 312 of the heat exchanger 31 is located below the primary side inlet 311 in the height direction Z, and the length of the primary side inlet pipe 371 is greater than the length of the primary side outlet pipe 372, so as to accommodate the fact that the height of the primary side outlet 312 of the heat exchanger 31 is higher than the height of the inlet.

[0071] To prevent impurities in the coolant from entering the heat exchanger 31, in some embodiments, a filter 33 is provided on the main pipe 3711 of the primary side inlet pipe 371. The filter 33 filters the cooling equipment 100 (e.g., Figure 1 The coolant is supplied to the heat exchanger 31 to prevent impurities from entering the heat exchanger 31 and reducing its service life.

[0072] In some embodiments, the filter 33 is a Y-type filter 33, meaning that when the filter 33 is installed in the main pipe 3711 of the primary side inlet pipe 371, it is approximately Y-shaped, and the main pipe 3711 of the primary side inlet pipe 371 and the outer pipe of the filter 33 are set at approximately an acute angle. The Y-type filter 33 has advantages such as compact structure, low pressure drop, easy maintenance, and low cost, making it the preferred filtration device in liquid cooling systems, HVAC, and other fields. Moreover, using the Y-type filter 33 can effectively save space in the horizontal direction. In this embodiment, since the length of the primary side inlet pipe 371 is greater than the length of the primary side outlet pipe 372, there is still space in the primary side inlet pipe 371 to install the Y-type filter 33 after installing various sensors and valves, thus making the overall layout of the primary side pipeline 37 more reasonable.

[0073] To improve the overall vibration resistance of the water system 30, in some embodiments, both the primary side inlet pipe 371 and the primary side outlet pipe 372 may include a vibration damping section 39 to buffer vibrations. This also effectively compensates for assembly tolerances and improves assembly accuracy.

[0074] Figure 8 for Figure 2 Another structural schematic diagram of the water system 30 in the liquid-cooled distribution unit 300 in the embodiment. Figure 9 for Figure 8 A schematic diagram of the connection between the secondary side pipe 38 and the heat exchanger 31 in the water system 30 of the embodiment.

[0075] Reference Figure 8 and Figure 9 In some embodiments, the secondary side piping 38 includes a secondary side inlet pipe 381 and a secondary side outlet pipe 382. The inlet of the secondary side inlet pipe 381 is used to connect with the secondary side cooling load 200 (e.g., Figure 1 The secondary side liquid inlet pipe 381 is connected to the secondary side liquid inlet 313 of the heat exchanger 31, the secondary side liquid outlet pipe 382 is connected to the secondary side liquid outlet 314 of the heat exchanger 31, and the secondary side liquid outlet pipe 382 is connected to the secondary side liquid load 200 (e.g., the liquid cooling unit of the cooling load 200). Figure 1 The secondary side cooling load 200 is connected to the heat exchanger 31 via the secondary side inlet pipe 381 and the secondary side outlet pipe 382, ​​so that the coolant cooled after heat exchange by the heat exchanger 31 can be delivered to the cooling load 200.

[0076] To improve the driving capability of the liquid pump 32 or to provide redundant backup of the liquid pump 32, in some embodiments, the number of liquid pumps 32 is multiple, for example... Figure 9The system contains two liquid pumps 32, which are connected in parallel. When both liquid pumps 32 are turned on at the same time, the driving capability of the coolant can be improved, and the flow rate of the coolant can be increased.

[0077] In some embodiments, the secondary side inlet 313 is located below the secondary side outlet 314 in the height direction Z. Since the primary side inlet 311 is located above the primary side outlet 312 in the height direction Z, and the secondary side inlet 313 is located below the secondary side outlet 314 in the height direction Z, the cooling device 100 (e.g., Figure 1 The coolant supplied to heat exchanger 31 and the cooling load 200 (e.g.) Figure 1 The coolant delivered to heat exchanger 31 flows in opposite directions, thereby improving the heat exchange efficiency of the two coolants.

[0078] In some embodiments, the primary side inlet 311, the primary side outlet 312, the secondary side inlet 313, and the secondary side outlet 314 are all located on the side of the heat exchanger 31 facing the rear door 15, so as to facilitate the connection and maintenance of the primary side pipeline 37 and the secondary side pipeline 38 with the heat exchanger 31.

[0079] In some embodiments, two liquid pumps 32 are connected in parallel between the secondary side inlet pipe 381 and the heat exchanger 31. The secondary side inlet pipe 381 includes a main pipe 3811 extending in the height direction Z, a first manifold 3812 for connecting to the output ends of the two liquid pumps 32, a second manifold 3813 for connecting to the input ends of the two liquid pumps 32, two first shock-absorbing pipes 3814 connecting the first manifold 3812 and the output ends of the two liquid pumps 32, two second shock-absorbing pipes 3815 connecting the second manifold 3813 and the input ends of the two liquid pumps 32, and a connecting bend 3816 for connecting the first manifold 3812 and the secondary side inlet 313 of the heat exchanger 31. Since the main pipe 3811 extends along the height direction Z, it can be placed on the side of the heat exchanger 31 and the two liquid pumps 32 facing the front door 14, so that the main pipe 3811 can be relatively long in the height direction Z, so as to make full use of the space in the height direction Z inside the cabinet 10.

[0080] Two liquid pumps 32 are arranged along the length direction X, and the first manifold 3812 and the second manifold 3813 extend along the length direction X. This facilitates the connection of the first manifold 3812 to the output ends of the two liquid pumps 32, and also facilitates the connection of the second manifold 3813 to the input ends of the two liquid pumps 32. The arrangement of the first manifold 3812 and the second manifold 3813 can replace a three-way valve, enabling the parallel connection of the two liquid pumps 32 and effectively reducing the overall length of the pipeline. Furthermore, various valves or sensors can be installed on the first manifold 3812 and the second manifold 3813 to effectively alleviate the problem of insufficient length for installing various valves or sensors on the main pipeline 3811.

[0081] In some embodiments, the first manifold 3812 is located in the height direction Z between the two liquid pumps 32 and the heat exchanger 31. Two first damping pipes 3814 extend in the height direction Z, with their inlets connected to the outputs of the two liquid pumps 32 and their outlets connected to the first manifold 3812. That is, the two first damping pipes 3814 are also located between the two liquid pumps 32 and the heat exchanger 31 to improve the utilization of the space between them. The connecting bend 3816 is U-shaped to connect the first manifold 3812 to the secondary side inlet 313 of the heat exchanger 31. By setting two first damping tubes 3814, not only can the output ends of the two liquid pumps 32 be connected to the heat exchanger 31, but the two first damping tubes 3814 can also play a buffering role in the height direction Z when the two liquid pumps 32 vibrate, thereby effectively suppressing the impact of the vibration of the two liquid pumps 32 on the heat exchanger 31 in the height direction Z.

[0082] In some embodiments, the two first shock absorber pipes 3814 and the first manifold pipe 3812 are located between the heat exchanger 31 and the two liquid pumps 32 in the height direction Z, thereby effectively utilizing the space between the two liquid pumps 32 and the heat exchanger 31 and improving the space utilization rate inside the cabinet 10.

[0083] In some embodiments, the connecting bend 3816 may also include a shock-absorbing section 39 extending along the depth direction Y, so as to buffer the vibration of the two liquid pumps 32 on the heat exchanger 31 in the depth direction Y.

[0084] In some embodiments, the two second damping tubes 3815 also extend along the height direction Z. The two second damping tubes 3815 can connect the input ends of the two liquid pumps 32 to the second manifold 3813. The two second damping tubes 3815 can also play a buffering role in the height direction Z when the two liquid pumps 32 vibrate, thereby effectively suppressing the impact of the vibration of the two liquid pumps 32 on the heat exchanger 31 in the height direction Z.

[0085] Reference Figure 8 and Figure 9 In some embodiments, the secondary side outlet pipe 382 includes a main pipe 3821 extending along the height direction Z and a connecting bend 3822 for connecting the main pipe 3821 and the secondary side outlet 314 of the heat exchanger 31. A flow meter 36 is provided on the middle portion of the main pipe 3821 in the extending direction. The flow meter 36 measures the amount of liquid delivered through the secondary side outlet pipe 382 to the cooling load 200 (e.g., heat exchanger 31). Figure 1 The flow rate of the coolant is adjusted to improve flow control accuracy. Since the flow meter 36 is a fine structure, impurities in the coolant delivered to the flow meter 36 need to be filtered out. Therefore, a filter 33 needs to be installed between the flow meter 36 and the secondary side outlet 314 of the heat exchanger 31 to filter out impurities in the coolant delivered from the secondary side outlet 314 of the heat exchanger 31 to the flow meter 36.

[0086] In order to ensure the filtration effect of filter 33 while maintaining the detection accuracy of flow meter 36, such as Figure 2 and Figure 9 In some embodiments, filter 33 is connected to the inlet of main pipe 3821, the inlet of main pipe 3821 is located at the end in the extension direction, and the outer tube of filter 33 extends horizontally, that is, in a direction perpendicular to the height, for example... Figure 9 The middle part can extend along the depth direction Y, or it can extend along the length direction X.

[0087] Understandably, when the flow meter 36 is placed in the middle of the main pipe 3821, both upstream and downstream of the flow meter 36 need to have sufficiently long straight pipe sections, and the coolant flow within the straight pipe sections must be stable to ensure the detection accuracy of the flow meter 36. If the filter 33 is installed on the main pipe 3821, then the main pipe 3821 needs to reserve some length space for installing the filter 33. This requires the main pipe 3821 to be long enough in the height direction Z. However, since the inner cavity of the cabinet 10 is divided into an upper chamber 101 and a lower chamber 102 by the partition 11, and given the limited height of the cabinet 10, the upper chamber 101 occupies a certain amount of height space, thus limiting the usable height of the lower chamber 102. Therefore, it is impossible to meet the requirement that the main pipe 3821 be long enough in the height direction Z to ensure the detection accuracy of the flow meter 36. In this embodiment, by placing the filter 33 horizontally and connecting it to the inlet at the top of the main pipe 3821, even when the space in the Z-direction of the lower chamber 102 is insufficient, the main pipe 3821 does not need to reserve installation space in the Z-direction for the filter 33. In other words, most of the dimensions of the main pipe 3821 can be used as the upstream and downstream straight pipe sections of the flow meter 36, thus still meeting the detection accuracy of the flow meter 36.

[0088] In some embodiments, the connecting bend 3822 has a continuous double U-shaped structure with bends. The inlet end of the connecting bend 3822 is connected to the secondary side liquid outlet 314 of the heat exchanger 31, and the outlet of the connecting bend 3822 is connected to the filter 33. That is, the filter 33 is connected between the outlet of the connecting bend 3822 and the inlet of the main pipe 3821.

[0089] To improve the overall vibration resistance of the water system 30, in some embodiments, the connecting bend 3822 may include a vibration-damping section 39 to buffer vibrations. This also effectively compensates for assembly tolerances and improves assembly accuracy.

[0090] It is understood that the shape, number of bends, and bend angle of the connecting bends in the above embodiments are not limited, as long as they can complete the connection task within the limited space of the lower chamber 102.

[0091] Reference Figure 9 In some embodiments, the main pipe 3811 of the secondary side liquid inlet pipe 381 can be connected to the secondary side liquid outlet pipe 382 to achieve self-cleaning of the heat exchanger 31. For example, in one connection method, the outlet of the main pipe 3811 can be located in the middle of the main pipe 3811, and the opening at the end of the main pipe facing the top plate 12 can be connected to the secondary side liquid outlet pipe 382.

[0092] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A liquid-cooled distribution unit, characterized in that, The liquid-cooled distribution unit includes a cabinet and a power converter and water system housed within the cabinet. The cabinet includes a partition, a top plate and a bottom plate opposite each other in the height direction of the cabinet, a front door and a back door opposite each other in the depth direction of the cabinet, and two side plates opposite each other in the length direction of the cabinet. The partition is located between the top plate and the bottom plate in the height direction and divides the inner cavity of the cabinet into an upper chamber and a lower chamber arranged vertically in the height direction. The water system includes a heat exchanger, a primary side pipeline for communication with the primary side, and a secondary side pipeline for communication with the secondary side. The primary side pipeline is connected to the heat exchanger, and the secondary side pipeline is connected to the heat exchanger. The heat exchanger, the primary side pipeline, and the secondary side pipeline are all located in the lower chamber. An air inlet is provided on the front door, and an air outlet is provided on the rear door. The air inlet and the air outlet are located at opposite ends of the upper chamber in the depth direction and are connected to the upper chamber. The power converter is located in the upper chamber, and the fan of the power converter faces the air inlet.

2. The liquid-cooled distribution unit according to claim 1, characterized in that, The partition connects to the two side panels at both ends in the length direction, and extends to the front door and the rear door at both ends in the depth direction. The power converter includes an inverter module and a rectifier module arranged on the partition along the height direction. The air inlet and the air outlet are located at both ends of the inverter module and the rectifier module in the depth direction. The fan of the inverter module and the fan of the rectifier module face the air inlet.

3. The liquid-cooled distribution unit according to claim 2, characterized in that, The liquid cooling distribution unit also includes a circuit board and a power module disposed on the circuit board. The power module is used to power the sensors of the water system. The circuit board is disposed on the side of the partition facing the top plate. The circuit board is located in the depth direction on the side of the power converter facing the rear door. The circuit board is arranged parallel to the top plate.

4. The liquid-cooled distribution unit according to any one of claims 1-3, characterized in that, The liquid cooling distribution unit also includes an auxiliary power supply and a controller disposed in the upper chamber. The auxiliary power supply is used to supply power to the water circuit system, and the controller is used to control the water circuit system. The auxiliary power supply and the controller are arranged on the partition along the length direction, and the auxiliary power supply and the controller are located on one side of the power converter in the length direction.

5. The liquid-cooled distribution unit according to any one of claims 1-4, characterized in that, The secondary side pipeline includes a secondary side liquid outlet pipe, which is used to communicate with the secondary side liquid outlet of the heat exchanger. The secondary side outlet pipe includes a main pipe and a filter. The main pipe extends along the height direction. A flow meter for detecting the flow rate is provided in the middle part of the main pipe. The end of the main pipe facing the partition is connected to the filter. The outer tube of the filter extends perpendicular to the height direction. The filter is used to filter the coolant delivered from the secondary side outlet to the main pipe.

6. The liquid-cooled distribution unit according to any one of claims 1-5, characterized in that, The water system also includes two liquid pumps, the output ends of which are connected to the secondary side inlet of the heat exchanger, and the input ends of which are connected to the cooling load. The two liquid pumps are arranged side by side on the base plate, and the heat exchanger is located on the side of the two liquid pumps facing the partition in the height direction.

7. The liquid-cooled distribution unit according to claim 6, characterized in that, The secondary side pipeline also includes a secondary side liquid inlet pipe, which is used to communicate with the secondary side liquid inlet of the heat exchanger. The secondary side liquid inlet pipe includes a first manifold and a second manifold. The first manifold is used to communicate with the output end of the two liquid pumps, and the second manifold is used to communicate with the input end of the two liquid pumps. The first manifold and the second manifold extend along the length direction, and the two liquid pumps are arranged along the length direction. The first manifold is located between the two liquid pumps and the heat exchanger in the height direction.

8. The liquid-cooled distribution unit according to claim 7, characterized in that, The secondary side liquid inlet pipe also includes two first shock-absorbing pipes. The two first shock-absorbing pipes extend along the height direction. The ends of the two first shock-absorbing pipes facing the top plate along the height direction are connected to the first manifold. The ends of the two first shock-absorbing pipes facing the bottom plate along the height direction are respectively connected to the output ends of the two liquid pumps. The two first shock-absorbing pipes are used to buffer vibrations in the height direction.

9. The liquid-cooled distribution unit according to claim 8, characterized in that, The two first shock-absorbing pipes and the first manifold are located in the height direction between the heat exchanger and the two liquid pumps.

10. The liquid-cooled distribution unit according to any one of claims 1-9, characterized in that, The liquid cooling distribution unit also includes a power distribution box, which is used to distribute electrical energy to different electrical components of the water system. The power distribution box is located between the heat exchanger and the front door in the depth direction.

11. The liquid-cooled distribution unit according to any one of claims 6-9, characterized in that, The water system also includes a storage tank and a replenishment tank, which are located in the vertical direction between the two liquid pumps and the heat exchanger.

12. The liquid-cooled distribution unit according to any one of claims 1-11, characterized in that, The primary side inlet, primary side outlet, secondary side inlet, and secondary side outlet of the heat exchanger are all located on the side of the heat exchanger facing the rear door, and the primary side pipeline and the secondary side pipeline are located on the side of the heat exchanger facing the rear door.

13. A data center, characterized in that, The data center includes a cooling load, a cooling device, and a liquid-cooled distribution unit as described in any one of claims 1-12 above. The cooling device is used to cool the coolant. The primary side piping connects the heat exchanger and the cooling device, and the secondary side piping connects the heat exchanger and the cooling load.

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