Water and electricity isolated power management module for liquid cooling CDU and data center

Abstract

The invention provides a water and electricity isolated power management module for a liquid cooling CDU and a data center, and belongs to the technical field of liquid cooling CDUs. The water and electricity isolated power management module comprises a shell, a UPS module, an ATS module and an air switch module; the shell is buckled with a first vertical side plate of the cabinet; a first cavity is defined by the shell and the first vertical side plate, and the first cavity is provided with a first air inlet and a first air outlet. A second cavity is further formed in the inner cavity of the shell, and the second cavity is provided with a second air inlet and a second air outlet; the UPS module is vertically arranged in the second chamber; the ATS module is vertically arranged in the first chamber; the air switch module is arranged in the first cavity and located on the periphery of the ATS module. Air can enter and exit from the first cavity and the second cavity independently. The occupied space of the power management module can be reduced, sufficient installation and operation space is provided for a liquid cooling pipeline and a cooling device in the whole machine, the heat dissipation performance of the ATS module and the UPS module can be improved, and the problem of local hot spots of the power management module is avoided.

Description

Technical Field

[0001] This invention belongs to the field of liquid-cooled CDU technology, and more specifically, it relates to a power management module and data center for a liquid-cooled CDU with water and electricity isolation. Background Technology

[0002] Data centers typically employ liquid cooling systems for heat dissipation. The liquid-cooled CDU (Coolant Distribution Unit) is the core execution unit of the liquid cooling system, responsible for distributing coolant to the data center's racks and servers. The liquid-cooled CDU integrates power supply and monitoring modules. The power supply module is used to build a highly reliable power supply system, while the monitoring module integrates sensor networks and logic control units to achieve comprehensive status awareness and system linkage.

[0003] The power supply module includes an ATS (Automatic Transfer Switch), a UPS (Uninterruptible Power Supply), and a circuit breaker module. The ATS module serves as the main input to the power supply module, automatically monitoring and selecting between two independent AC power inputs. The UPS module acts as a backup power source, providing uninterrupted power in the event of a complete AC power outage, ATS switching, or voltage fluctuations, and also functions as a filter. The circuit breaker module acts as the distribution and protection center of the power supply module, dividing the high-quality power processed by the ATS and UPS into multiple paths to supply CDUs, servers, and other equipment.

[0004] Power supply modules are typically installed as integrated products inside a server rack, with ATS, UPS, and circuit breaker modules all housed in the same enclosure. Since both ATS and UPS modules are significant heat sources, a small enclosure results in high heat density per unit volume, poor heat dissipation, and localized hotspots. Conversely, a large enclosure encroaches on the space occupied by the power supply modules, encroaching on the installation and operation space for CDU, conduits, and monitoring modules. Summary of the Invention

[0005] The purpose of this invention is to provide a power management module and data center with water-electricity isolation for liquid-cooled CDU, aiming to solve the problems of poor heat dissipation, local hot spots, and large space occupation of existing power modules.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A water-electricity isolated power management module for a liquid-cooled CDU is provided, for installation inside the cabinet of the liquid-cooled CDU, wherein the cabinet contains liquid-cooling pipes and liquid-cooling components; the water-electricity isolated power management module for the liquid-cooled CDU includes: The housing is fastened to the first vertical side panel of the cabinet; the housing and the first vertical side panel form a first chamber, the first chamber having a first air inlet and a first air outlet opened on the first vertical side panel; the inner cavity of the housing also forms a second chamber, the second chamber having a second air inlet and a second air outlet opened on the first vertical side panel and / or other vertical side panels of the cabinet; The UPS module is vertically installed in the second chamber; The ATS module is vertically installed in the first chamber; and An air switch module is disposed in the first chamber and located on the periphery of the ATS module; The first chamber and the second chamber can be independently inlet and outlet. Outside cold air enters the first chamber through the first air inlet, flows through the ATS module and then flows out through the first air outlet; outside cold air also enters the second chamber through the second air inlet, flows through the UPS module and then flows out through the second air outlet.

[0007] The beneficial effects of the water-electricity isolated power management module for liquid-cooled CDU provided by the present invention are as follows: Compared with the prior art, the water-electricity isolated power management module for liquid-cooled CDU of the present invention has its shell fastened to the first vertical side plate of the cabinet and attached to the first vertical side plate, forming a first chamber by utilizing the cabinet's own structure, thus achieving space integration, reducing the independent volume occupied by the power module, and making the layout of the shell more compact.

[0008] Building upon this, a second chamber is isolated within the housing. The ATS module is placed in the first chamber, and the UPS module in the second chamber. The ATS and UPS modules are housed in two separate chambers, each with its own independent air inlet and outlet, forming an independent airflow system. Cool air from outside can enter through both the first and second inlets, flowing directly through the ATS and UPS modules before exiting through their respective outlets, achieving targeted heat dissipation. This separated airflow design avoids thermal interference between heat sources, improves the heat dissipation efficiency of the ATS and UPS modules, reduces the risk of localized hotspots, and thus enhances the reliability and lifespan of the power management module.

[0009] The UPS module is vertically installed in the second chamber, the ATS module is vertically installed in the first chamber, and the circuit breaker module is located outside the ATS module. The vertical placement reduces the volume protruding into the cabinet, further reducing the space occupied. Moreover, the modular layout makes each functional module relatively independent, which is convenient for installation, maintenance and replacement.

[0010] In one possible implementation, the direction perpendicular to the first vertical side plate is defined as the first direction, and the front projection of the UPS module in the first direction falls on the circuit breaker module; The horizontal direction perpendicular to the first direction is defined as the second direction. The circuit breaker module is located above the ATS module and to the side of the second direction. The height of the housing is adapted to the height of the circuit breaker module. In the second direction, the width of the first chamber is adapted to the width of the circuit breaker module. The UPS module is located above the ATS module. In the first direction, the UPS module and the ATS module are staggered, and the ATS module is close to the first vertical side panel.

[0011] The overall height of the circuit breaker module determines the height of the housing, and the width of the circuit breaker module determines the width of the first chamber. The key dimensions of the housing are tied to this core functional unit, the circuit breaker module, rather than the UPS module or ATS module. Therefore, in this embodiment, the housing does not need to be designed to be large enough for all modules. Instead, the housing is constructed based on the circuit breaker module, which occupies the most space, thus achieving a compact design without redundancy and maximizing space utilization.

[0012] In some embodiments, the lower half of the first chamber is recessed into the interior of the cabinet to form a concave cavity, which is located below the second chamber, and the ATS module is fixed in the concave cavity; the circuit breaker module is located in the first chamber except for the concave cavity.

[0013] The internal cavity utilizes the redundant space beneath the second chamber in the vertical direction to define a fixed position for the ATS module, without requiring additional increase in the overall width or height of the first chamber. This allows the width of the first chamber to be precisely matched to the width of the circuit breaker module, achieving a compact design without redundancy.

[0014] The ATS module generates heat during operation. Placing it in the concave cavity allows the heat to be dissipated through a specific path within the cavity, preventing the hot air from rising directly and heating the circuit breaker module above. This creates a zoned approach to thermal management.

[0015] In some embodiments, the top of the concave cavity is provided with an air outlet hood; there is an air outlet space between the air outlet hood and the top surface of the ATS module, and in the first direction, the air outlet space corresponds to the first air outlet. The top surface of the air hood is inclined relative to the first direction and slopes from top to bottom toward the inside of the cabinet; There is an air intake space between the bottom surface of the concave cavity and the bottom surface of the ATS module, and in the first direction, the air intake space corresponds to the first air inlet.

[0016] The air intake space ensures the smooth injection of cool air, guaranteeing that the cooler air entering from the first air intake can evenly and unobstructedly contact the entire bottom heat dissipation surface of the ATS module. The air exhaust space is used to guide hot air out efficiently.

[0017] After rising from the top of the ATS module, the air naturally moves into the first chamber. The inclined air hood follows and guides this natural flow, allowing the airflow to smoothly turn and enter the first air outlet, reducing flow resistance.

[0018] In one possible implementation, the second chamber has a first through end and a second through end that are horizontally connected. The first through end is disposed in conjunction with the second vertical side panel of the cabinet. The second vertical side panel is perpendicular to the first vertical side panel. The second air inlet is opened on the second vertical side panel and corresponds to the first through end. The second air outlet corresponds to the second through end.

[0019] The heat dissipation path of the second chamber differs from that of the recessed cavity. The horizontal through-ventilation channel formed by the second chamber allows cooling air to enter through the second air inlet on the second vertical side plate, pass horizontally through the entire UPS module, and then exit from the second air outlet on the other side. This forms a completely enclosed "through-ventilation" heat dissipation path. The flow resistance of the horizontal air duct is generally lower than that of the bottom-to-top vertical air duct, which allows the UPS module's fan to drive a larger flow of air with lower power consumption.

[0020] In some embodiments, the second through end is fitted to the first vertical side plate, and the second air outlet is opened on the first vertical side plate.

[0021] The upper and lower air ducts of the concave cavity exhaust hot air through the first vertical side plate, and the hot air of the second chamber is also exhausted through the first vertical side plate. This means that all the heat of the entire power management module is exhausted through the same side plate.

[0022] In some embodiments, the second chamber includes a main cavity and a wiring cavity that are connected and arranged vertically; The internal structure of the main cavity is adapted to the external structure of the UPS module; one end of the main cavity is the first through end; one end of the wiring cavity is the second through end; A water baffle is provided on the back plate of the housing at a position corresponding to the first through end, and the water baffle extends to connect with the second vertical side plate.

[0023] In some embodiments, the direction perpendicular to the second vertical side plate is defined as the second direction, and the UPS module can be extracted from the second chamber along the second direction.

[0024] The wiring compartment is used to encapsulate the live parts of the UPS module, such as the input and output terminals, within a separate cavity. The second through end of the wiring compartment faces the first vertical side panel, meaning that all power input / output terminals are concentrated on the side of the cabinet. The circuit breaker module, ATS module, and wiring compartment all face the first vertical side panel, allowing all power wiring, inspection, and maintenance of this power management module to be performed by opening the first vertical side panel.

[0025] The internal structure of the main cavity is adapted to the external structure of the UPS module, so that the space occupied by the second chamber is compressed in the first direction.

[0026] The back panel of the housing is equipped with a water baffle and is connected to the second vertical side panel to create a physical barrier for the UPS module.

[0027] In one possible implementation, the housing is made of multiple plates joined together by welding; a sealing strip is provided around the end face of the housing that engages with the first vertical side plate.

[0028] With the dual protection of welded casing and sealing strips, the ATS and UPS modules sealed inside the casing can be kept dry, ensuring system availability and safety.

[0029] The present invention also provides a data center, including a liquid-cooled CDU and a power management module for the liquid-cooled CDU that is isolated from electricity by water; the power management module for the liquid-cooled CDU is disposed inside the cabinet of the liquid-cooled CDU.

[0030] The data center provided by this invention, by adopting the above-mentioned liquid-cooled CDU with water and electricity isolation power management module, can reduce the space occupied by the power management module inside the rack, provide sufficient installation and operation space for liquid cooling pipelines and liquid cooling devices, and improve the heat dissipation performance of ATS module and UPS module, avoiding local hot spot problems in the power management module. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the installation location of the water-electrically isolated power management module of the liquid-cooled CDU provided in an embodiment of the present invention (part of the first vertical side plate and part of the second vertical side plate are omitted in the figure). Figure 2A schematic diagram of the structure of the power management module with water-electricity isolation for the liquid-cooled CDU provided in an embodiment of the present invention; Figure 3 A schematic diagram of the housing of the water-electrically isolated power management module of the liquid-cooled CDU provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the cabinet structure provided in an embodiment of the present invention.

[0033] In the picture: 1. Housing; 11. First chamber; 111. First air inlet; 112. First air outlet; 113. Recessed cavity; 114. Air outlet hood; 115. Air outlet space; 116. Air inlet space; 12. Second chamber; 121. Second air inlet; 122. Second air outlet; 123. Main cavity; 124. Wiring cavity; 125. Water baffle; 13. Sealing strip; 2. UPS module; 3. ATS module; 4. Circuit breaker module; 5. Cabinet; 51. First vertical side panel; 52. Second vertical side panel. Detailed Implementation

[0034] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0035] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0036] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a number" means two or more, unless otherwise explicitly specified.

[0037] Data centers typically employ liquid cooling systems for heat dissipation. The liquid-cooled CDU (Coolant Distribution Unit) is the core execution unit of this system, responsible for distributing coolant to the data center's racks and servers. The liquid-cooled CDU integrates power management and monitoring modules. The power management module is used to build a highly reliable power supply system, integrating a UPS, ATS, and power distribution protection unit. When the external main power supply is interrupted or abnormal, the UPS can achieve zero-second switching, seamlessly providing backup power to ensure the continuous operation of the CDU circulation pump and monitoring system, buying valuable time for critical business processing or safe shutdown. The ATS monitors the quality of the two input power sources in real time. When the primary power supply fails, it can automatically and quickly switch the load to the backup power supply, effectively eliminating single-point failures in the power supply path from the external access to the rack entrance. The internal power distribution unit and circuit breakers are circuit breaker modules, enabling branched power supply to loads such as CDUs and servers, accurate metering, and overload / short-circuit protection, and providing clear physical disconnect points for easy equipment maintenance and operation.

[0038] Power modules are typically installed as integrated products inside the cabinet of a liquid-cooled CDU, with ATS, UPS, and circuit breaker modules integrated into the same housing. ATS and UPS modules are significant heat sources. The inventors discovered that if the ATS and UPS modules are arranged vertically, the cooling airflow received by the upper module passes through the hot air of the lower module, resulting in poor heat dissipation performance of the upper module and localized hot spots in the upper part of the housing. If the ATS and UPS modules are arranged horizontally, sufficient installation space needs to be reserved for the circuit breaker module, leading to a large overall space requirement for the power management module.

[0039] To resolve the above issues, please refer to the following: Figures 1 to 4 The following describes the water-electricity isolated power management module for the liquid-cooled CDU provided by the present invention. The water-electricity isolated power management module for the liquid-cooled CDU is installed inside the cabinet 5 of the liquid-cooled CDU. The cabinet 5 also contains liquid-cooling pipes and liquid-cooling components. The power management module includes a housing 1, a UPS module 2, an ATS module 3, and a circuit breaker module 4. The housing 1 is fastened to the first vertical side plate 51 of the cabinet 5. The housing 1 and the first vertical side plate 51 form a first chamber 11, which has a first air inlet 111 and a first air outlet 112 opened on the first vertical side plate 51. A second chamber 12 is also formed within the housing 1, which has a second air inlet 121 and a second air outlet 122 opened on the first vertical side plate 51 and / or other vertical side plates of the cabinet 5. The UPS module 2 is vertically installed in the second chamber 12. The ATS module 3 is vertically installed in the first chamber 11. The circuit breaker module 4 is installed in the first chamber 11 and located around the ATS module 3.

[0040] The first chamber 11 and the second chamber 12 can be independently inlet and outlet. Outside cold air enters the first chamber 11 through the first air inlet 111, flows through the ATS module 3 and then flows out through the first air outlet 112. Outside cold air also enters the second chamber 12 through the second air inlet 121, flows through the UPS module 2 and then flows out through the second air outlet 122.

[0041] The cabinet 5 has a hexahedral structure, and its cabinet body consists of four vertical side panels and two horizontal side panels, of which at least one vertical side panel can be opened, that is, it serves as the door panel of the cabinet 5. Preferably, the first vertical side panel 51 of the cabinet 5 is the door panel, and when the first vertical side panel 51 is opened, the first chamber 11 is exposed.

[0042] The housing 1 extends along the height of the cabinet 5 and is fixed to the upper half of the cabinet 5. The housing 1 is fastened to the first vertical side plate 51 of the cabinet 5. That is, one side of the housing 1 is an open surface, which is fastened to the first vertical side plate 51 to form the first chamber 11. Since the housing 1 is placed vertically and fastened to the first vertical side plate 51, its height is its length, its width is the horizontal extension distance parallel to the first vertical side plate 51, and its thickness is the depth perpendicular to the first vertical side plate 51 and protruding into the cabinet 5.

[0043] The direction perpendicular to the first vertical side panel 51 is defined as the first direction, and the direction perpendicular to and horizontal to the first direction is defined as the second direction. Preferably, the height of the housing 1 is 1 / 3 to 1 / 2 of the height of the cabinet 5; in the first direction, the thickness of the housing 1 is 1 / 7 to 1 / 5 of the inner length of the cabinet 5; and in the second direction, the width of the housing 1 is 1 / 3 to 1 / 2 of the inner width of the cabinet 5.

[0044] The housing 1 also has a second chamber 12, which can be located above the first chamber 11, or behind the first chamber 11 (i.e., protruding inward relative to the first chamber 11), or only corresponding to a part of the first chamber 11, as long as the above-mentioned size limitations are met. Therefore, the housing 1 can be a hexahedral structure or an irregular structure.

[0045] Based on the above limitations on the position and size of housing 1, it can be seen that housing 1 occupies very little space inside rack 5. The interior cavity of rack 5 is concentrated for arranging liquid cooling pipes and liquid cooling components. It should be noted that a monitoring module is also installed inside rack 5. The monitoring module is mounted on the back of the second vertical side panel 52 and is spaced apart from the power management module along the second direction. It can be understood that the second vertical side panel 52 can be divided into two panels, with housing 1 correspondingly fastened to one panel and the monitoring module mounted on the back of the other panel.

[0046] ATS module 3, serving as the main input for this power management module, is responsible for automatically monitoring and selecting two independent AC power inputs. In the event of a main power failure, it seamlessly switches to the backup circuit, ensuring uninterrupted power supply. UPS module 2, acting as the stabilizer and backup battery for this power management module, provides uninterrupted power in the event of a complete AC power outage, ATS module 3 switching, or voltage fluctuations, and provides valuable backup time for the system (for safe shutdown or waiting for generator startup). Circuit breaker module 4, as the distribution and protection center of this power management module, divides the high-quality power processed by ATS module 3 and UPS module 2 into multiple circuits, supplying them to servers and other equipment. Each circuit is equipped with a circuit breaker, providing overload and short-circuit protection and facilitating maintenance of individual devices.

[0047] Both ATS module 3 and UPS module 2 are placed vertically. This vertical placement gives the modules a larger surface area in the vertical direction, promoting the self-circulation of airflow. In terms of the frontal area, compared to horizontal placement, the vertical placement allows the circuit boards and heat-generating components (such as the contacts of the ATS and the power devices of the UPS) to directly face the cooling airflow. This enables the airflow to make more thorough contact with the heat-generating surfaces and exchange heat, thus improving heat dissipation efficiency.

[0048] From the perspective of airflow path, since the casing 1 is also placed vertically, the first air duct formed by the first air inlet 111, the first chamber 11, and the first air outlet 112 is also vertical, and the second air duct formed by the second air inlet 121, the second chamber 12, and the second air outlet 122 is also vertical. The vertically placed module is exactly aligned with the direction of the vertical air duct from bottom to top or from front to back, allowing cold air to flow through the entire module with minimal resistance and the longest path, directly carrying away heat and avoiding the problem of a layer of stagnant hot air forming above the horizontally placed module.

[0049] From a space-occupancy perspective, placing the ATS module 3 and UPS module 2 vertically perfectly matches the height of the cabinet 5, rather than encroaching on valuable horizontal or vertical space. This minimizes the footprint (projected area) of the power modules. Vertical placement also allows for a slimmer layout of the power modules, placing them flush against the first vertical side panel 51, thus freeing up more space for neat and orderly installation and operation in the central area of ​​the cabinet 5, facilitating cabling and maintenance.

[0050] Circuit breaker module 4 needs to be electrically connected to both ATS module 3 and UPS module 2, and the area occupied by circuit breaker module 4 is much larger than that occupied by UPS module 2 and ATS module 3. Figure 2 and Figure 3 As shown, the circuit breaker module 4 is located above and to the side of the ATS module 3.

[0051] The ATS module 3 and UPS module 2 are the main heat sources of this power management module. When working, cold air from the outside enters the first chamber 11 through the first air inlet 111, flows through the ATS module 3 to remove its heat, and then flows out from the first air outlet 112. Cold air from the outside also enters the second chamber 12 through the second air inlet 121, flows through the UPS module 2 to remove its heat, and then flows out from the second air outlet 122.

[0052] The liquid-cooled CDU power management module with water and electricity isolation provided by the present invention, compared with the prior art, has the housing 1 fastened to the first vertical side plate 51 of the cabinet 5 and attached to the first vertical side plate 51. The first chamber 11 is formed by utilizing the structure of the cabinet 5 itself, realizing space integration, reducing the independent volume occupied by the power module, and making the layout of the housing 1 more compact.

[0053] Based on this, a second chamber 12 is isolated within the housing 1. The ATS module 3 is placed in the first chamber 11, and the UPS module 2 is placed in the second chamber 12. The ATS module 3 and UPS module 2 are respectively located in two independent chambers, each with its own independent air inlet and outlet, forming an independent air duct system. External cool air can enter through the first air inlet 111 and the second air inlet 121, flowing directly through the ATS module 3 and UPS module 2 before exiting through their respective outlets, achieving targeted heat dissipation. This separated air duct design avoids thermal interference between heat sources, improves the heat dissipation efficiency of the ATS module 3 and UPS module 2, reduces the risk of localized hotspots, and thus enhances the reliability and lifespan of the power management module.

[0054] The UPS module 2 is vertically installed in the second chamber 12, the ATS module 3 is vertically installed in the first chamber 11, and the circuit breaker module 4 is located outside the ATS module 3. The vertical placement can reduce the volume protruding into the cabinet 5, further reducing the space occupied. Moreover, the modular layout makes each functional module relatively independent, which is convenient for installation, maintenance and replacement.

[0055] In some embodiments, the UPS module 2, ATS module 3, and circuit breaker module 4 described above can be adopted as follows: Figure 1 and Figure 2 The layout shown is described in the image. Figure 1 and Figure 2 The direction perpendicular to the first vertical side panel 51 is defined as the first direction, and the front projection of the UPS module 2 in the first direction falls on the circuit breaker module 4; the horizontal direction perpendicular to the first direction is defined as the second direction, and the circuit breaker module 4 is located above the ATS module 3 and to the side of the second direction; in the height direction of the cabinet 5, the UPS module 2 is located above the ATS module 3. In the first direction, the UPS module 2 and the ATS module 3 are staggered, and the ATS module 3 is close to the first vertical side panel 51.

[0056] The frontal projection of UPS module 2 in the first direction falls on circuit breaker module 4, meaning that UPS module 2 and circuit breaker module 4 partially overlap in the first direction. Within the first chamber 11, circuit breaker module 4 is also located above ATS module 3 and to the side in the second direction. Therefore, the overall height of circuit breaker module 4 determines the height of housing 1, and the width of circuit breaker module 4 determines the width of the first chamber 11. In other words, the height of housing 1 matches the height of circuit breaker module 4, and a portion of the width of housing 1 (i.e., the width of the first chamber 11) matches the width of circuit breaker module 4.

[0057] The overall height of the circuit breaker module 4 determines the height of the housing 1, and the width of the circuit breaker module 4 determines the width of the first chamber 11. The key dimensions of the housing 1 are tied to this core functional unit, the circuit breaker module 4, rather than the UPS module 2 or the ATS module 3. Therefore, in this embodiment, the housing 1 does not need to be designed with a sufficiently large housing for all modules. Instead, it is constructed based on the circuit breaker module 4, which occupies the most space, thereby achieving a compact design without redundancy and maximizing space utilization.

[0058] Using the width of the circuit breaker module 4 as the width of the first chamber 11 effectively defines the boundaries for the UPS module 2 and the ATS module 3. This allows the heavier UPS module 2 and ATS module 3 to be installed and fixed with the location of the circuit breaker module 4 as a reference, forming a stable main load-bearing frame. This avoids stress concentration in the casing 1 caused by multiple heavy modules operating independently, and improves the overall structural rigidity.

[0059] During assembly, the circuit breaker module 4 and its associated first chamber 11 can be pre-assembled as a sub-unit. Then, using this sub-unit as a reference and platform, the ATS module 3 and UPS module 2 are installed sequentially. This clear hierarchical relationship simplifies the assembly process and reduces accumulated errors. During maintenance, if it is necessary to replace or repair the circuit breaker module 4 located at the top, its first chamber 11, being structurally relatively independent and with clearly defined dimensions, allows for easier modular disassembly without requiring large-scale disassembly of the entire power supply module, reducing maintenance complexity and risk.

[0060] Furthermore, binding the dimensions of the first chamber 11 to the circuit breaker module 4 effectively separates the high-heat-generating module from the low-heat-generating module. With the dimensions of the first chamber 11 fixed, a relatively independent thermal management area is effectively defined for the ATS module 3. Only the heat dissipation of the ATS module 3 needs to be considered within this thermal management area, without needing to consider the impact on the circuit breaker module 4. This physical dimensional isolation creates favorable conditions for functional thermal isolation, helping to prevent the disorderly diffusion of heat between modules.

[0061] Based on the determined dimensions of the first chamber 11, the UPS module 2 is positioned above the ATS module 3. In the first direction, the UPS module 2 and ATS module 3 are staggered, thus offsetting them in height. This avoids the abnormal increase in the height of the housing 1 caused by perfectly aligning the two modules in height. Furthermore, the depth space of the housing 1 is utilized, which is equivalent to reducing the overall projected area of ​​the housing 1 by installing two modules in a staggered manner within the same floor area.

[0062] In some embodiments, the first chamber 11 described above may be as follows: Figure 2 and Figure 3 The structure shown is described in the following document. Figure 2 and Figure 3 The lower half of the first chamber 11 is recessed into the cabinet 5 to form a concave cavity 113. The concave cavity 113 is located below the second chamber 12, and the ATS module 3 is fixed in the concave cavity 113. The circuit breaker module 4 is located in the part of the first chamber 11 other than the concave cavity 113.

[0063] The internal cavity utilizes the redundant space below the second chamber 12 in the height direction to define a fixed position for the ATS module 3, without increasing the overall width or height of the first chamber 11. This allows the width of the first chamber 11 to be precisely matched with the width of the circuit breaker module 4, achieving a compact design without redundancy.

[0064] By placing the substantial ATS module 3 in the lower half of the housing 1 (i.e., the recessed cavity 113), the center of gravity of the entire power management module is lowered. This is crucial for equipment installed in the rack. A low center of gravity structure is more stable in the face of vibration or accidental impacts, reducing the risk of tipping over or loosening, and improving the safety and reliability of the entire rack.

[0065] In terms of heat dissipation, the ATS module 3 generates heat during operation. Placing it in the recessed cavity 113 allows the heat to be dissipated through a specific path within the cavity, preventing hot air from rising directly and heating the overhead circuit breaker module 4, thus achieving zoned thermal management. Because the ATS module 3 is flush against the wall of the recessed cavity 113, designers can more easily design a dedicated heat dissipation solution for this area, such as increasing the ventilation holes at the corresponding first vertical side plate 51 or integrating a small airflow shroud to achieve precise and efficient heat dissipation for the ATS module 3.

[0066] From a cabling and maintenance perspective, the ATS module 3, as a power input switching unit, typically requires connection to relatively thick main cables from outside the cabinet. Positioning it within the recessed cavity 113, close to the first vertical side panel 51, provides ample operating space and a natural routing path for the introduction and connection of these large-diameter cables. Maintenance personnel can easily access the terminals of the ATS module 3 from the side of the cabinet for tightening or maintenance, without the difficulty of maneuvering within a crowded stack of modules. Cables can be routed along the contour of the recessed cavity 113, resulting in a neater and more organized appearance, reducing bending stress on the cables, and lowering the risk of short circuits or interference due to messy cabling.

[0067] In some embodiments, the aforementioned concave cavity 113 may also employ, for example... Figure 2 The structure shown is described in the following document. Figure 2 An air outlet hood 114 is provided on the top of the concave cavity 113. The air outlet hood 114 protrudes towards the first vertical side plate 51 and preferably abuts against the first vertical side plate 51. An air outlet space 115 exists between the air outlet hood 114 and the top surface of the ATS module 3. In the first direction, the air outlet space 115 corresponds to the first air outlet 112. The top surface of the air outlet hood 114 is inclined relative to the first direction and slopes from top to bottom towards the interior of the cabinet 5 (or it can be viewed as sloping downwards from the outside to the inside). An air inlet space 116 exists between the bottom surface of the concave cavity 113 and the bottom surface of the ATS module 3. In the first direction, the air inlet space 116 corresponds to the first air inlet 111.

[0068] The recessed cavity 113 is essentially the heat dissipation duct of the ATS module 3, the air inlet space 116 is the inlet of the heat dissipation duct, and the air outlet space 115 is the outlet of the heat dissipation duct. The top of the ATS module 3 is generally equipped with a fan. The air inlet space 116 ensures smooth injection of cool air, ensuring that the cooler air entering from the first air inlet 111 can evenly and unobstructedly contact the entire bottom heat dissipation surface of the ATS module 3, rather than only cooling a localized area. It also provides a stable flow space for the airflow, allowing the cooling air to flow upwards sufficiently.

[0069] The air outlet space 115 is used to guide the efficient exhaust of hot air. The top of the ATS module 3 is a natural gathering area for hot air, which gathers all the heated and rising air. Since it is directly opposite the first air outlet 112, the gathered hot air can be directly guided to the first air outlet 112, reducing the possibility of disorderly diffusion and circulation of hot air in the concave cavity 113.

[0070] An air outlet shroud 114 is provided on the top surface of the concave cavity 113, and the top surface of the air outlet shroud 114 is inclined to form a tapering guide slope. After hot air rises from the top surface of the ATS module 3, it will naturally move towards the interior of the first chamber 11 (i.e., away from the first vertical side plate 51). The inclined air outlet shroud 114 follows and guides this natural flow direction, allowing the airflow to smoothly turn and enter the first air outlet 112, reducing flow resistance. Moreover, the inclined surface can accelerate the airflow, increasing the exhaust speed of the hot air.

[0071] Without the exhaust shroud 114, some hot air might form vortices at the top corner of the concave cavity 113, or even be drawn back in. The sloping design of the top surface of the exhaust shroud 114 effectively avoids dead zones, prevents short-circuiting of hot and cold airflow, and ensures heat dissipation efficiency.

[0072] Furthermore, the air hood 114 isolates the ATS module 3 and the circuit breaker module 4, ensuring that the hot air passing through the ATS module 3 will not blow towards or heat the circuit breaker module 4 above when it is discharged, thus achieving strict thermal zoning and protecting the safety of the circuit breaker module 4.

[0073] In some embodiments, the second chamber 12 described above can be as follows: Figure 2 and Figure 3 The structure shown is described in the following document. Figure 2 and Figure 3 The second chamber 12 has a first through end and a second through end that are horizontally connected. The first through end is set to fit the second vertical side plate 52 of the cabinet 5. The second vertical side plate 52 is perpendicular to the first vertical side plate 51. The second air inlet 121 is opened on the second vertical side plate 52 and corresponds to the first through end. The second air outlet 122 corresponds to the second through end.

[0074] It should be noted that the UPS module 2 is equipped with a fan, which is used to circulate air within the second chamber 12.

[0075] The second chamber 12 has a first through end and a second through end that are horizontally connected. The first through end corresponds to the second air inlet 121, and the second through end corresponds to the second air outlet 122. This means that outside cold air flows horizontally within the second chamber 12. It should be noted that the second air outlet 122 can be located on another vertical side plate parallel to the second vertical side plate 52, thus forming a straight air duct in the second chamber 12. Alternatively, the second air outlet 122 can be located on the first vertical side plate 51, forming a curved air duct in the second chamber 12.

[0076] The heat dissipation path of the second chamber 12 differs from that of the recessed cavity 113. The horizontal through-ventilation channel formed by the second chamber 12 allows cooling air to enter through the second air inlet 121 on the second vertical side plate 52, pass horizontally through the entire UPS module 2, and then exit from the second air outlet 122 on the other side. This forms a completely enclosed "through-ventilation" type heat dissipation path. The flow resistance of the horizontal air duct is generally less than that of the vertical air duct from bottom to top, which allows the fan of the UPS module 2 to drive a larger flow of air with lower power consumption.

[0077] UPS module 2 is the unit with the highest power density and total heat generation in this power management module. This low-resistance, high-flow horizontal airflow provides it with ample cooling capacity, ensuring that UPS module 2 can be kept within a safe operating temperature even when operating under high load.

[0078] The second air inlet 121 is located on the second vertical side plate 52, which is perpendicular to and adjacent to the first vertical side plate 51. This makes the air intake source and exhaust path of the concave cavity 113 and the second chamber 12 completely separate in physical space, avoiding the two high-heat modules competing for the same cold air and preventing their exhaust from interfering with each other and heating each other.

[0079] In some embodiments, the second chamber 12 may also be as follows: Figures 1 to 4 The structure shown is described in the following document. Figures 1 to 4 The first through end is fitted to the first vertical side plate 51, and the second air outlet 122 is opened on the first vertical side plate 51.

[0080] The first vertical side plate 51 is perpendicular to the second vertical side plate 52. The second air inlet 121 is opened on the second vertical side plate 52, and the second air outlet 122 is opened on the first vertical side plate 51. In other words, the second chamber 12 forms an L-shaped bent air duct.

[0081] Compared to horizontal straight ventilation ducts, which require sufficient space on both sides of rack 5 for air intake and exhaust, this is often impractical. For example, when rack 5 needs to be placed against a wall or closely alongside other racks, one side will be blocked. The L-shaped bend in the ventilation duct concentrates air intake and exhaust onto two adjacent, vertical side panels. This allows rack 5 to be placed close to a wall or other racks, as long as there is sufficient ventilation space on these two adjacent sides, greatly improving the rack's layout flexibility in the data center.

[0082] The upper and lower air ducts of the concave cavity 113 exhaust hot air through the first vertical side panel 51, and the hot air from the second chamber 12 also exhausts through the first vertical side panel 51. This means that all the heat from the entire power management module is exhausted through the same side panel. This allows data center operators to deploy a unified exhaust duct, air guide hood, or thermal sealing system outside the first vertical side panel 51 to achieve centralized treatment of waste heat from the power management module, simplifying thermal management design.

[0083] Because airflow generates vortices and pressure losses at 90° bends, the resistance is much greater than that of a horizontal, straight ventilation duct. To avoid these problems, higher static pressure fans can be used to overcome the increased flow resistance, and curved guide vanes or honeycomb rectifiers can be installed at bends to smooth the airflow, break up large-scale vortices, and minimize pressure loss.

[0084] In some embodiments, the second chamber 12 described above can be as follows: Figure 2 and Figure 3 The structure shown is described in the following document. Figure 2 and Figure 3 The second chamber 12 includes a main chamber 123 and a wiring chamber 124 that are connected and arranged vertically. The internal structure of the main chamber 123 is adapted to the external structure of the UPS module 2. One end of the main chamber 123 is a first through end. One end of the wiring chamber 124 is a second through end. A baffle 125 is provided on the back plate of the housing 1 at the position corresponding to the first through end. The baffle 125 extends to connect with the second vertical side plate 52.

[0085] The wiring compartment 124 is used to encapsulate the live parts, such as the input and output terminals, of the UPS module 2 within a single, independent cavity. This prevents cables from becoming tangled within the UPS main body 123, thus avoiding them from compressing the cooling ducts or contacting high-temperature components. The unified cable entry / exit also facilitates the use of waterproof connectors, improving connection reliability and professionalism. Since the cables in the wiring compartment 124 generate virtually no heat, it isolates the heat source of the main body 123 from external connection points, preventing the high temperature of the main body 123 from being directly conducted to the power terminals. This avoids accelerated aging of the cable insulation due to prolonged high temperatures, improving the long-term reliability of the system.

[0086] The second through end of the wiring compartment 124 faces the first vertical side panel 51, meaning that all power input / output terminals are concentrated on the side of the cabinet 5. Maintenance personnel can easily access all terminals, screws, and cable markings by opening the first vertical side panel 51, facilitating operation and maintenance.

[0087] The circuit breaker module 4, ATS module 3, and wiring compartment 124 all face the first vertical side panel 51. Therefore, all power wiring, inspection, and maintenance of this power management module can be completed by opening the first vertical side panel 51. This does not affect the maintenance and operation of the server and liquid cooling piping on other side panels of the cabinet 5.

[0088] The internal structure of the main cavity 123 is adapted to the external structure of the UPS module 2, which allows the cavity wall to be designed to fit tightly against the heat dissipation fins of the UPS module 2, forming a narrow flow channel between them. The airflow through the aforementioned flow channel can increase its velocity, forcefully scouring the main heat dissipation surface of the UPS module 2, breaking up the stagnant air boundary layer, thereby achieving higher heat exchange efficiency.

[0089] Furthermore, because the UPS module 2 is placed vertically, the internal structure of the main cavity 123 is adapted to the external structure of the UPS module 2, which compresses the space occupied by the second chamber 12 in the first direction, i.e., the overall thickness of the housing 1 is compressed, making the power management module more compact. A more compact power management module means that there is more vertical and horizontal space in the cabinet 5 for laying liquid cooling pipes.

[0090] A water baffle 125 is provided on the back panel of the housing 1 and is connected to the second vertical side panel 52 to create a physical barrier for the UPS module 2. Specifically, if a leak occurs in the liquid cooling pipes or joints inside the cabinet 5, there is a risk that the sprayed or flowing coolant may splash onto the air intake surface of the UPS module 2. The water baffle 125 blocks the sprayed coolant, preventing it from splashing onto the UPS module 2.

[0091] In addition, in high humidity environments, condensation may occur on other low-temperature surfaces inside the cabinet 5. The baffle 125 is also used to block water droplets or water flow, ensuring that liquid cannot flow into the main cavity 123 through the first through end, thereby avoiding possible catastrophic failures such as short circuits and corrosion.

[0092] In some embodiments, the UPS module 2 and the second cavity can be connected by, for example, Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The direction perpendicular to the second vertical side plate 52 is defined as the second direction (i.e., the horizontal direction perpendicular to the first direction), and the UPS module 2 can be extracted from the second chamber 12 along the second direction.

[0093] It should be noted that the second vertical side panel 52 is also a door panel of the rack 5, which can be opened. After opening the second vertical side panel 52, the air intake of the UPS module 2 is exposed. When maintenance or replacement of the UPS module 2 is required, the maintenance personnel only need to open the second vertical side panel 52, and can directly pull out the entire UPS module 2 along the second direction, just like pulling out a server from a server rack. There is no need to move other equipment; it can be done using handles or guide rails, making the operation extremely simple and reducing system downtime.

[0094] After the UPS module 2 is partially or completely withdrawn, its internal live parts are physically isolated from other operating systems inside the housing 1, preventing the risk of accidental contact.

[0095] In some embodiments, the housing 1 may also employ, for example... Figure 2 The structure shown is described in the following document. Figure 2 The housing 1 is made of multiple plates spliced ​​together, and the splicing positions are welded; a sealing strip 13 is provided around the end face of the housing 1 that is fastened to the first vertical side plate 51.

[0096] If a leak occurs in the liquid cooling pipes or joints inside cabinet 5, the sprayed or flowing coolant will splash onto the back of housing 1. This liquid has a strong impact force and is persistent. To prevent liquid from entering the interior of housing 1, housing 1 in this embodiment is formed by welding. Compared to bolted or screwed connections, welding melts multiple plates into a continuous, complete whole, fundamentally eliminating the inherent and unavoidable micro-gaps at the joints. The strength and airtightness of welded joints are far superior to those using sealant or gaskets. It does not age or shrink, can permanently withstand positive liquid pressure, and can effectively block liquid from directly impacting the joints, preventing it from entering the interior of housing 1.

[0097] As two independent components, the housing 1 and the first vertical side plate 51 inevitably have dimensional tolerances and minor deformations during processing and assembly. Metal-to-metal contact cannot guarantee a complete seal. The elastic sealing strip 13, which surrounds the opening end face of the housing 1, is compressed when the housing 1 and the first vertical side plate 51 are engaged. Its elastic deformation fills all microscopic unevenness and assembly gaps, forming a tight, recoverable sealing ring. Even if liquid flows into the joint, it will be blocked by this elastic barrier.

[0098] With the dual protection of the welded housing 1 and the sealing strip 13, the ATS module 3 and UPS module 2 sealed inside the housing 1 can be kept dry, ensuring system availability and safety.

[0099] Based on the same inventive concept, this application also provides a data center, including a liquid-cooled CDU and a water-electricity isolated power management module for the liquid-cooled CDU. The water-electricity isolated power management module for the liquid-cooled CDU is disposed inside the cabinet 5 of the liquid-cooled CDU.

[0100] The data center provided by this invention, by adopting the above-mentioned liquid-cooled CDU with water and electricity isolation power management module, can reduce the space occupied by the power management module inside the rack, provide sufficient installation and operation space for liquid cooling pipelines and liquid cooling devices, and improve the heat dissipation performance of ATS module 3 and UPS module 2, avoiding local hot spot problems in the power management module.

[0101] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A power management module for a liquid-cooled CDU with water-electricity isolation, characterized in that, Inside a cabinet (5) for housing a liquid-cooled CDU, the cabinet (5) contains liquid-cooled piping and liquid-cooled components; the liquid-cooled CDU has a water-electricity isolated power management module including: The housing (1) is fastened to the first vertical side panel (51) of the cabinet (5); the housing (1) and the first vertical side panel (51) form a first chamber (11), the first chamber (11) having a first air inlet (111) and a first air outlet (112) opened on the first vertical side panel (51); the inner cavity of the housing (1) also forms a second chamber (12), the second chamber (12) having a second air inlet (121) and a second air outlet (122) opened on the first vertical side panel (51) and / or other vertical side panels of the cabinet (5); The UPS module (2) is vertically installed in the second chamber (12); The ATS module (3) is vertically installed in the first chamber (11); and An air switch module (4) is disposed in the first chamber (11) and located on the periphery of the ATS module (3); The first chamber (11) and the second chamber (12) can be independently inlet and outlet. Outside cold air enters the first chamber (11) through the first air inlet (111), flows through the ATS module (3) and then flows out through the first air outlet (112). Outside cold air also enters the second chamber (12) through the second air inlet (121), flows through the UPS module (2) and then flows out through the second air outlet (122).

2. The power management module for a liquid-cooled CDU with water-electricity isolation as described in claim 1, characterized in that, The direction perpendicular to the first vertical side plate (51) is defined as the first direction, and the front projection of the UPS module (2) in the first direction falls on the circuit breaker module (4); The horizontal direction perpendicular to the first direction is defined as the second direction. The circuit breaker module (4) is located above the ATS module (3) and to the side of the second direction. The height of the housing (1) is adapted to the height of the circuit breaker module (4). In the second direction, the width of the first chamber (11) is adapted to the width of the circuit breaker module (4). The UPS module (2) is located above the ATS module (3). In the first direction, the UPS module (2) and the ATS module (3) are staggered, and the ATS module (3) is close to the first vertical side plate (51).

3. The power management module for a liquid-cooled CDU with water-electricity isolation as described in claim 2, characterized in that, The lower half of the first chamber (11) is recessed into the cabinet (5) to form a concave cavity (113). The concave cavity (113) is located below the second chamber (12). The ATS module (3) is fixed in the concave cavity (113). The circuit breaker module (4) is located in the first chamber (11) except for the concave cavity (113).

4. The power management module for a liquid-cooled CDU with water-electricity isolation as described in claim 3, characterized in that, The top of the concave cavity (113) is provided with an air outlet hood (114); there is an air outlet space (115) between the air outlet hood (114) and the top surface of the ATS module (3), and in the first direction, the air outlet space (115) corresponds to the first air outlet (112); The top surface of the air outlet hood (114) is inclined relative to the first direction and is inclined from top to bottom toward the interior of the cabinet (5); There is an air inlet space (116) between the bottom surface of the concave cavity (113) and the bottom surface of the ATS module (3). In the first direction, the air inlet space (116) corresponds to the first air inlet (111).

5. The power management module for a liquid-cooled CDU with water-electricity isolation as described in claim 1, characterized in that, The second chamber (12) has a first through end and a second through end that are horizontally connected. The first through end is attached to the second vertical side plate (52) of the cabinet (5). The second vertical side plate (52) is perpendicular to the first vertical side plate (51). The second air inlet (121) is opened on the second vertical side plate (52) and corresponds to the first through end. The second air outlet (122) corresponds to the second through end.

6. The power management module for a liquid-cooled CDU with water-electricity isolation as described in claim 5, characterized in that, The second through end is fitted to the first vertical side plate (51), and the second air outlet (122) is opened on the first vertical side plate (51).

7. The water-electricity isolated power management module for a liquid-cooled CDU as described in claim 6, characterized in that, The second chamber (12) includes a main cavity (123) that is connected and arranged vertically and a wiring cavity (124); The internal structure of the main cavity (123) is adapted to the external structure of the UPS module (2); one end of the main cavity (123) is the first through end; one end of the wiring cavity (124) is the second through end; A baffle plate (125) is provided on the back plate of the housing (1) at the position corresponding to the first through end, and the baffle plate (125) extends to connect with the second vertical side plate (52).

8. The power management module for a liquid-cooled CDU with water-electricity isolation as described in claim 6 or 7, characterized in that, The direction perpendicular to the first vertical side plate (51) is defined as the first direction, and the horizontal direction perpendicular to the first direction is defined as the second direction. The UPS module (2) can be extracted from the second chamber (12) along the second direction.

9. The power management module for a liquid-cooled CDU with water-electricity isolation as described in claim 1, characterized in that, The housing (1) is made of multiple plates spliced ​​together, and the splicing position is welded; the end face of the housing (1) that is fastened to the first vertical side plate (51) is surrounded by a sealing strip (13).

10. A data center, characterized in that, include: Liquid-cooled CDU; as well as The water-electricity isolated power management module of the liquid-cooled CDU as described in any one of claims 1-9 is installed inside the cabinet (5) of the liquid-cooled CDU.

Images