EP4677967A1 - Anordnung für die versorgung einer direkten flüssigkeitskühlung mit elektrischer energie - Google Patents
Anordnung für die versorgung einer direkten flüssigkeitskühlung mit elektrischer energieInfo
- Publication number
- EP4677967A1 EP4677967A1 EP24787057.9A EP24787057A EP4677967A1 EP 4677967 A1 EP4677967 A1 EP 4677967A1 EP 24787057 A EP24787057 A EP 24787057A EP 4677967 A1 EP4677967 A1 EP 4677967A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plug
- units
- dlc
- liquid cooling
- arrangement according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1485—Servers; Data center rooms, e.g. 19-inch computer racks
- H05K7/1488—Cabinets therefor, e.g. chassis or racks or mechanical interfaces between blades and support structures
- H05K7/1492—Cabinets therefor, e.g. chassis or racks or mechanical interfaces between blades and support structures having electrical distribution arrangements, e.g. power supply or data communications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20763—Liquid cooling without phase change
- H05K7/20781—Liquid cooling without phase change within cabinets for removing heat from server blades
Definitions
- the invention relates to an arrangement for supplying a direct liquid cooling system (DLC) with electrical energy, wherein the arrangement comprises at least one IT rack with a plurality of plug-in units for plug-in devices of a direct liquid cooling system and/or an IT infrastructure, arranged one above the other in the vertical direction of the IT rack.
- DLC direct liquid cooling system
- Such an arrangement is known from US 2007/0274043 Ai or US 2022/0210953 Ai. Similar arrangements are described in US 11,395,443 B2, US 2023/0056298 Ai, US 2022/0330459 Ai, and US 2019/0037730 Ai.
- the known arrangements have the disadvantage that, in the event of a failure of one of the plug-in devices inserted into the slots, replacing the affected device is complex and, in particular, takes a considerable amount of time. During this time, the direct liquid cooling cannot operate or can only operate at reduced cooling capacity. This can lead, for example, to IT components installed in the IT racks, such as server slots, having to be taken out of service or operated at reduced power to prevent the devices from overheating. Establishing the necessary cabling for the plug-in devices and a power supply is particularly time-consuming.
- the IT rack must be provided with a DC voltage supply for plug-in devices accommodated in the drawers, with a rectifier and a power distribution, for example, a busbar which runs along a rear side of the IT rack in the vertical direction of the IT rack and is supplied with a DC voltage by the rectifier, wherein at least one plug-in device of a direct liquid cooling system is accommodated in one of the plug-in units and is electrically contacted with the power distribution, in particular the busbar.
- a rectifier and a power distribution for example, a busbar which runs along a rear side of the IT rack in the vertical direction of the IT rack and is supplied with a DC voltage by the rectifier, wherein at least one plug-in device of a direct liquid cooling system is accommodated in one of the plug-in units and is electrically contacted with the power distribution, in particular the busbar.
- the power distribution is a busbar, for example a copper busbar, particularly preferably a busbar accommodated in a contact guard that has contact openings for electrically contacting the busbar.
- the power distribution, in particular the busbar is particularly preferably designed as a straight strip.
- the plug-in devices in particular, but not exclusively, plug-in devices for direct liquid cooling, can be operated with direct voltage.
- a direct voltage supply is provided in the IT rack, which extends at least in the vertical direction of the IT rack and can be used to supply plug-in devices inserted into the plug-in devices with direct voltage.
- the direct voltage supply in particular the power distribution, such as a busbar, can have self-contacting.
- the power distribution, such as a busbar, and the plug-in devices have complementary contact elements on their rear side facing the power distribution, which engage when the plug-in devices are arranged in a position fully inserted into the plug-in devices, wherein the electrical contact is disengaged when the plug-in devices are inserted into the plug-in devices in an incompletely inserted position.
- the arrangement can be part of an IT cabinet, a row of IT cabinets, or a data center.
- the arrangement can therefore, in particular, be part of a switch cabinet housing.
- the switch cabinet housing can, in a known manner, have air cooling for the components requiring cooling accommodated in the switch cabinet.
- cooled air can flow through the switch cabinet housing.
- the switch cabinet housing has an air-liquid heat exchanger on an air outlet side, for example, on a front or rear side.
- the heat exchanger can, for example, be designed as a rear door heat exchanger. This allows heated air flowing through the switch cabinet to be cooled air in the enclosure environment.
- cooled air can enter the enclosure from a cold aisle via the front or rear of the cabinet and enter the warm aisle on the opposite side as heated air.
- the cooled air can be discharged into the cold aisle, for example, by an air-to-liquid heat exchanger located in a raised floor of the data center.
- the cooled air can also be provided in the cold aisle in other ways.
- the DLC system can be designed in a modular manner, with multiple interconnected modules. This enables embodiments of the DLC system in which particularly failure-prone modules or assemblies are provided redundantly.
- multiple pump modules can be provided for fluid transport.
- the pump modules can be connected in parallel.
- Each of the pump modules can have multiple pumps, which in turn are preferably connected in parallel.
- the direct liquid cooling system comprises at least one pump module, which is configured independently of other functional modules of the liquid cooling system.
- the at least one module or one of the direct liquid cooling modules can be a plug-in direct liquid cooling device, which is connected to the DC voltage supply in the manner described above.
- the arrangement for supplying a direct liquid cooling system (DLC) with electrical energy is part of a switch cabinet housing, a row of switch cabinets, or a data center and furthermore an air cooling system with at least one air-liquid heat exchanger is provided, it can be provided that a return line of the air-liquid heat exchanger is connected to a supply line of the direct liquid cooling system, in particular to a supply line of a liquid-liquid heat exchanger of the direct liquid cooling system.
- the heated liquid emerging from the air-liquid heat exchanger is still used as a heat sink for the recooling of the cooling liquid of the primary circuit of the direct liquid cooling system.
- liquid cooling systems with a The air passing through the control cabinet can be operated at a higher flow temperature of an air cooling system in order to enable, in particular, effective heat transfer from the component requiring cooling to the liquid in the primary circuit of the liquid cooling system.
- the return line of an air-liquid heat exchanger accommodated in a switch cabinet door can be connected to a flow line of a liquid-liquid heat exchanger of the direct liquid cooling system, in particular to the external circuit of the direct liquid cooling system.
- the air-liquid heat exchanger can also assume an alternative position with respect to the switch cabinet, a row of switch cabinets, or a data center that includes the DLC.
- the air-liquid heat exchanger can be arranged in a raised floor of a data center and configured to blow cooled air into a cold aisle, which was previously passed as heated air out of the warm aisle and through the raised floor and the air-liquid heat exchanger.
- the heat exchanger can also be part of an inline cooling device that is arranged in a row of switch cabinets.
- the switch cabinet row can separate a cold aisle from a hot aisle, with heated air being drawn in from the hot aisle via the rear of the inline cooling unit, passed through the air-liquid heat exchanger in the inline cooling unit, and blown out as cooled air into the cold aisle at the front.
- the arrangement is a component of a switch cabinet housing or an IT rack in which, in addition to the components of the arrangement according to the invention, only components of a liquid cooling system and optionally components of an air-liquid cooling system are arranged.
- a switch cabinet housing or such an IT rack can be a component of a switch cabinet row, for example, arranged in a row of switch cabinets or IT racks and can be configured to provide cooled liquid for liquid cooling of components accommodated in adjacent switch cabinet housings or in IT racks.
- the switch cabinet housing or IT rack comprising the arrangement can also have at least one air-liquid heat exchanger for providing cooled air for cooling the aforementioned components.
- the liquid circuit of the air-liquid heat exchanger can be connected to a liquid circuit of the external circuit of a
- the liquid-liquid heat exchanger of the liquid cooling system can be connected in the manner described above, in particular such that the return of the air-liquid heat exchanger is connected to the flow of the external circuit of the liquid-liquid heat exchanger.
- the return of the external circuit of the liquid-liquid heat exchanger can be connected to a recooling system, for example, a chiller.
- the flow of the chiller can be connected to the flow of the air-liquid heat exchanger.
- the air-liquid heat exchanger and the liquid-liquid heat exchanger of the direct liquid cooling system can also be designed independently of one another and each connected to the recooler for providing cooled liquid.
- the air-liquid heat exchanger can also be omitted and only liquid cooling can be implemented.
- a plurality of first dummy coupling connectors can be arranged at a distance from one another in the vertical direction for the tool-free connection of direct liquid cooling modules and/or an IT infrastructure to the power distribution system, for example a busbar.
- the plug-in devices to be accommodated in the drawers can have connectors complementary to the first dummy coupling connectors.
- the mutually complementary connectors can be self-centering, so that when the plug-in devices are inserted into the drawers and a fully inserted position is reached, secure contact is achieved between the plug-in devices and the busbar.
- the direct liquid cooling system may comprise at least one coolant distribution channel running along the rear side of the IT rack in the vertical direction of the IT rack, wherein a plurality of second blind coupling connectors are arranged along the coolant distribution channel at a distance from one another in the vertical direction for the tool-free connection of assemblies of the direct liquid cooling system and/or an IT infrastructure to the coolant distribution channel.
- the inserts may have a linear guide for direct liquid cooling and/or IT infrastructure assemblies, wherein the linear guide extends parallel to a plug-in direction of the first and/or second dummy coupling connectors.
- the direct liquid cooling system can comprise multiple plug-in units, each of which is accommodated in one of the plug-in units, and of which at least two plug-in units are configured as redundant plug-in units, preferably redundant pumping units, for example, each as a reservoir pumping unit (RPU). All of the plug-in units, but preferably at least one of the plug-in units of the direct liquid cooling system, can be connected to the power distribution, in particular a busbar, in particular via a blind coupling plug connection, so that easy replacement is possible in the event of a failure.
- the rectifier can be configured as one of the plug-in devices.
- the rectifier can be configured, for example, as a power supply unit (PSU) that is housed as a plug-in device in one of the plug-in units.
- the PSU can have a dummy coupling connector on a rear side facing the power distribution, via which the PSU is electrically connected to the power distribution in order to apply the DC voltage to the power distribution, for example, a busbar of the power distribution.
- the at least one plug-in device of the direct liquid cooling system can be a coolant distribution unit (CDU) or at least one module of a coolant distribution unit.
- the coolant distribution unit preferably has several independently formed modules.
- the coolant distribution unit can preferably have at least two redundant modules.
- the redundant modules can be designed as identical parts and connected in parallel.
- the coolant distribution unit has at least two modules with different functionality.
- the modules can each be designed as a plug-in device for accommodation in one of the modules.
- Components of the coolant distribution unit can be, for example: at least one pumping unit for coolant, preferably with 2N redundant pumps, at least one heat exchanger, at least one expansion vessel, at least one pressure and/or temperature sensor, at least one three-way valve with bypass valve, at least one AC power supply, at least one control unit, at least one service valve, at least one filter, preferably a Filter fans, at least one automatic vent, and at least one pressure relief valve.
- Individual modules can be configured as a separate plug-in unit. Multiple modules can form a common plug-in unit. The modules can be designed to be hot-swappable, preferably with regard to a connection to a coolant circuit, if present, and/or a connection to a power supply, if present.
- the pump unit of the CDU is designed as a separate plug-in device.
- the pump unit preferably has multiple plug-in devices.
- the multiple plug-in devices of the pump unit can be identical parts.
- the multiple plug-in devices of the pump unit can be connected in series with regard to their pumping capacity for the coolant.
- the multiple pump units can be configured such that even if one of the multiple pump units fails, the required pumping capacity can be provided by the remaining pump units.
- the multiple pump units are operated at a reduced pumping capacity during normal operation, i.e., if none of the multiple pump units has failed. If one of the pump units fails, the remaining pump units can increase their pumping capacity so that the pumping capacity lost due to the failure is compensated. Once the failed pump unit has been replaced, the multiple pump units can return to normal operation.
- CDUs coolant distribution units
- all of the aforementioned components are often arranged in the same housing, thus forming a single device. If one of the aforementioned components fails, the entire CDU must be replaced. This leads to an interruption of the cooling capacity provided by the CDU and thus, potentially, to the failure of the IT infrastructure cooled by the CDU.
- At least one of the components of the coolant distribution unit can be arranged outside a housing of the coolant distribution unit (CDU) and inside or outside the IT rack.
- an expansion tank of the coolant distribution unit can be arranged on a roof of the IT rack.
- the at least one assembly of the coolant distribution unit can be a control device of the coolant distribution unit, which is electrically connected to the power supply, in particular the busbar, and is preferably designed as a plug-in device that is accommodated in one of the plug-in units.
- the at least one component of the coolant distribution unit can be an expansion tank that is fluidically connected, preferably directly, to a coolant distribution channel of the direct liquid cooling system.
- the expansion tank can particularly preferably be arranged outside the IT rack, for example, on the roof of the IT rack.
- assemblies of the coolant distribution unit can be accommodated as individual plug-in units, each in a plug-in unit.
- the assemblies of the coolant distribution unit, designed as independent plug-in units can comprise at least two identical or structurally identical assemblies, preferably several identical or structurally identical pump units, for example, RPUs, of the coolant distribution unit.
- at least two of the identical or structurally identical pump units can be designed as redundant pump units. To achieve redundancy, the pump units can be connected in parallel.
- the at least one plug-in unit can be a direct liquid cooling assembly, in which the plug-in unit has a housing in which at least two redundant, preferably parallel-connected, pumps are arranged.
- the housing can also be free of at least one compressor, one expansion means, and one condenser.
- the housing can be free of all other active components of a refrigeration machine.
- an embodiment of the invention can be provided in which the particularly failure-prone pump units can be replaced easily and during operation. This can be further optimized by providing not just one of the plug-in units with at least two redundant pumps, but several of these plug-in units, which particularly preferably supply a coolant distribution channel with cooled coolant in a fluidically parallel manner.
- a heat exchanger in addition to the at least two redundant pumps, can be accommodated in the housing.
- the redundant pumps can be used to pump or convey coolant through an inner circuit of the heat exchanger.
- the heat exchanger is a liquid-to-liquid heat exchanger
- an outer circuit of the liquid-to-liquid heat exchanger can be connected or connectable to a cooling liquid cooler.
- the outer circuit of the liquid-to-liquid heat exchanger can be connected to the return line of an air-to-liquid heat exchanger of an existing IT infrastructure, as already described.
- the housing can have at least one supply line and a first return line on an outer side for connecting the inner circuit to a coolant distribution channel of the direct liquid cooling system.
- a single-pole or double-pole electrical contact for electrical connection to the power distribution system such as a busbar, can be provided on the outer side, preferably on a rear side of the housing facing the power distribution system.
- a second supply line and a second return line can preferably be provided for connecting the outer circuit to a heat exchanger.
- all of the supply lines and returns, as well as the electrical contact can be designed as blind coupling plug connectors.
- At least one additional plug-in device can be accommodated or receivable in at least one additional slot.
- the at least one additional plug-in device can be a server or an uninterruptible power supply (backup battery unit - BBU).
- the direct liquid cooling system can comprise at least one additional plug-in unit, preferably a coolant-carrying assembly of a coolant distribution unit of the direct liquid cooling system.
- the plug-in unit can be or comprise a heat exchanger.
- the plug-in unit can be or comprise an expansion tank.
- the additional plug-in unit should be accommodated in one of the plug-in units without making contact with the busbar.
- the withdrawable devices and the additional withdrawable devices can have standardized housings that have the same dimensions, particularly with regard to their depth direction, i.e., in the direction of insertion of the withdrawable devices into the drawers.
- the first dummy coupling connectors formed on the rear sides facing the busbar are preferably designed identically, regardless of the withdrawable device type.
- the IT rack's slots can accommodate only plug-in units for direct liquid cooling.
- the IT rack can therefore be integrated into a switch cabinet row containing components requiring cooling.
- the IT rack that exclusively accommodates plug-in units for liquid cooling can have suitable interfaces, such as baying connectors, to adjacent IT racks in the switch cabinet row, including fluidic transitions between the IT rack that exclusively accommodates plug-in units for liquid cooling and the adjacent IT racks in the switch cabinet row, which can accommodate, for example, servers requiring cooling.
- At least one of the plug-in devices may be or comprise a heat exchanger, preferably a liquid-liquid heat exchanger, an expansion vessel, a pumping unit, a control unit or a DC voltage supply.
- a heat exchanger preferably a liquid-liquid heat exchanger, an expansion vessel, a pumping unit, a control unit or a DC voltage supply.
- Figure 1 shows a schematic representation of direct liquid cooling
- Figure 2 shows an exemplary embodiment of a plug-in device designed as a pump unit
- Figure 3 shows an exemplary embodiment of a direct liquid cooling system with additional rear door air cooling
- Figure 4 shows a schematic representation of an exemplary embodiment of a plug-in device
- Figure 5 shows a further embodiment of a plug-in device
- Figure 6 shows yet another embodiment of a plug-in device
- FIG. 7 shows an embodiment of an arrangement according to the invention in the
- Figure 8 shows yet another embodiment of an arrangement according to the invention in a side view of the IT rack.
- FIG. 1 shows a schematic representation of direct liquid cooling (DLC).
- Cooled liquid is provided by a recooler 16, which can be designed, for example, as a chiller, with or without a refrigeration machine.
- the recooler 16 has, in particular, an air-liquid heat exchanger and at least one fan, with which ambient air is transported through the air-liquid heat exchanger.
- the cooled liquid provided by the recooler is fed to a coolant distribution unit (CDU), in particular via the supply line of an external circuit of the CDU.
- CDU coolant distribution unit
- the liquid provided by the recooler leaves the CDU as heated liquid via a return line of the external circuit, and the external circuit of the CDU, which simultaneously forms the liquid circuit of the recooler 16, is designated by the reference numeral 17.
- the coolant distribution unit CDU has, in particular, a liquid-to-liquid heat exchanger and at least one pump for transporting liquid through the inner circuit 15 of the CDU.
- the supply line of the inner circuit of the CDU is connected to a return line of a coolant distribution channel, and the return line of the inner circuit 15 of the CDU is connected to a supply line of the coolant distribution channel 7.
- the coolant distribution channel 7 can have, spaced apart from one another in the longitudinal direction, i.e., in the vertical direction, several connections, on the one hand, to a supply line of the coolant distribution channel 7, via which cooled coolant is provided, and on the other hand, to a return line of the coolant distribution channel 7, via which heated coolant is discharged.
- the plug-in devices 2 can be, for example, server plug-ins of an IT infrastructure, which are connected to the distribution channel 7, for example, in the manner known from US 2007/0274043 Ai.
- the cooling liquid which is preferably an electrically non-conductive refrigerant, flows over the components requiring cooling, for example CPUs, or GPUs, or any other component that has a high power dissipation and is also highly temperature sensitive, so that air cooling is unsuitable due to the lower thermal conductivity of air compared to liquid.
- FIG. 2 shows an exemplary embodiment of a plug-in device that can be used in an arrangement according to the invention.
- the plug-in device 2.1 has a housing 13, which can be standardized, for example, with regard to its dimensions, for example at least to the extent that, upon insertion of the plug-in device 2.1 into a slot of an IT rack, both the first and second dummy coupling plug connections 6.1, 6.2 for the electrical contacting of the power distribution, on the one hand, and the fluidic connection to the direct liquid cooling, in particular a coolant distribution channel, can be made automatically, i.e., in particular without tools.
- Three redundant pumps 14 are arranged in the housing 13, which are connected in particular in parallel.
- a heat exchanger 12 in particular a liquid-liquid heat exchanger, is also arranged in the housing 13.
- the only active components within the housing 13 are thus the pumps 14, which are provided in triplicate and connected in parallel.
- the pump unit shown in Figure 2 thus exhibits a very high degree of failure resistance. Due to the use of the first and second dummy coupling connectors 6.1, 6.2, the entire unit, i.e., the plug-in unit 2.1, can be replaced quickly and without significant downtime in the event of all pumps failing or if pump performance decreases.
- DLC direct liquid cooling
- FIG 3 shows an embodiment in which the arrangement according to the invention is accommodated in a switch cabinet housing designed in the style of an IT cabinet with several 19-inch rack units arranged vertically one above the other.
- the rack units 2.1 in the rack units 2 of the IT rack 1 are partially occupied by servers and partially by built-in units 2.1 of the direct liquid cooling system.
- a top bay 2 of the IT rack 1 is occupied by a DC power supply 3, provided as a built-in device 2.1.
- a bottom bay 2 is occupied by a coolant distribution unit (CDU).
- a coolant distribution duct 7 with its supply line and return line is arranged at the rear of the IT rack 1. The supply line and return line of the coolant distribution duct 7 are connected to the coolant distribution unit CDU.
- a rear door heat exchanger 200 is connected to the rear of the IT rack 1.
- This rear door heat exchanger has an air-liquid heat exchanger and several fans. With the help of the rear door heat exchanger, cooled air is drawn through the front of the IT rack 1, past the server bays 2.1 requiring cooling, and into the rear door heat exchanger 200, where the heated air passes through the air-liquid heat exchanger and is discharged as cooled air into the enclosure's surroundings.
- the supply line of the air-liquid heat exchanger of the rear door cooling unit 200 is fed by a recooler 16, for example, a chiller.
- the return line of the air-liquid heat exchanger of the rear door cooling unit 200 is connected to a supply line of an external circuit of the CDU.
- the heated liquid emitted by the air-liquid heat exchanger thus serves as a heat sink for the CDU.
- a liquid-liquid heat exchanger 12 is arranged in the CDU, via which heat is transferred from an inner circuit of the CDU, with which the CDU is connected to the coolant distribution channel 7, to the outer circuit of the CDU.
- All plug-in devices 2.1 except for the DC power supply 3 itself, can be designed as DC devices, operating, for example, at an operating voltage of 48 V.
- the entire power distribution within the IT rack can thus be carried out at a DC voltage level that is less dangerous than the mains voltage, thereby increasing the operational reliability of the IT rack.
- the modular design of the direct liquid cooling further allows, for example, the expansion tank 10 to be arranged on an upper side of the IT rack 1, that is to say in particular above the coolant distribution channel 7, in a manner that is advantageous for operation.
- FIGs 4 to 6 show different stages of development of a plug-in device 2.1, which is designed as a pump unit (RPU) in the embodiment according to Figure 4
- the RPU shown in Figure 4 has only two pumps 14 connected in parallel, which are accommodated in a housing 13 with two power supplies 19, one for each of the pumps 14.
- a first dummy coupling connector 6.1 is used for connection to the DC voltage source and a pair of second dummy coupling connectors 6.2 are used for connection to the internal circuit of the DLC, so that the pump unit (RPU) shown in Figure 4 can supply the coolant distribution channel (not shown) of the DLC with cooled coolant.
- the embodiment shown in Figure 5 not only provides a liquid-liquid heat exchanger 12, but also features triple redundancy for the pumps 14. Accordingly, three power supplies 19 are also provided for the independent supply of the three pumps 14.
- the embodiment shown in Figure 5 is suitable, for example, for use in a control cabinet according to Figure 3, in which the external circuit of the CDU is connected to an air-liquid heat exchanger, for example, to such a heat exchanger of a rear-door cooling unit 200.
- the embodiment in Figure 6 provides an air-liquid heat exchanger 12 and a pair of fans 20 instead of a liquid-liquid heat exchanger for recooling the coolant.
- An expansion tank 10 is also arranged in the housing.
- a pair of redundant pumps 14 are fed by a pair of independent power supplies 19.
- FIG. 7 shows, in front view (a) and side view (b), an exemplary embodiment of an arrangement for supplying a direct liquid cooling system with electrical energy.
- the arrangement comprises an IT rack 1 having a plurality of plug-in units 2 for plug-in devices 2.1 of a direct liquid cooling system, arranged one above the other in the vertical direction z.
- plug-in units 2.1 for direct liquid cooling further plug-in units 2.1 are also provided, which in this case are designed as servers.
- the rectifier PSU is also designed as a plug-in unit 2.1.
- Extending along the rear R of the IT rack 1 as the power distribution 5 is a busbar of a DC voltage supply 3 for the plug-in units 2 or the plug-in devices 2.1 accommodated therein.
- the busbar is fed by the rectifier PSU, in particular supplied with a DC voltage.
- the plug-in units 2.1 The direct liquid cooling units (DLC) that require a supply of electrical energy are each accommodated in one of the plug-in units 2 and electrically contacted with the busbar.
- the expansion tank 10, which does not require an electrical power supply, is arranged in a physically advantageous position on the top side, i.e., outside the IT rack 1.
- a control unit 9 is designed as a separate plug-in unit, independent of other DLC components, and is directly contacted with the DC voltage supply 3, in particular with the busbar of the power distribution system 5.
- the plug-in units 2.1 have first dummy coupling connectors 6.1 for the tool-free connection of the plug-in units 2.1 to the busbar.
- Complementary dummy coupling connectors can be arranged on the rear side of the housings of the plug-in units 2.1 facing the busbar.
- second blind coupling connectors which are fluid-conducting, can be arranged on the rear side for connection to a supply line and a return line of the coolant distribution channel 7.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023127303.5A DE102023127303B3 (de) | 2023-10-06 | 2023-10-06 | Anordnung für die Versorgung einer direkten Flüssigkeitskühlung mit elektrischer Energie |
| PCT/DE2024/100839 WO2025073316A1 (de) | 2023-10-06 | 2024-09-24 | Anordnung für die versorgung einer direkten flüssigkeitskühlung mit elektrischer energie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4677967A1 true EP4677967A1 (de) | 2026-01-14 |
Family
ID=93037074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24787057.9A Pending EP4677967A1 (de) | 2023-10-06 | 2024-09-24 | Anordnung für die versorgung einer direkten flüssigkeitskühlung mit elektrischer energie |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4677967A1 (de) |
| KR (1) | KR20260003062A (de) |
| CN (1) | CN121264180A (de) |
| DE (1) | DE102023127303B3 (de) |
| WO (1) | WO2025073316A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024116616B4 (de) * | 2024-06-13 | 2026-01-08 | Rittal Gmbh & Co. Kg | Schaltschrankanordnung für die zentralisierte direkte Flüssigkeitskühlung einer IT- Infrastruktur |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7701714B2 (en) | 2006-05-26 | 2010-04-20 | Flextronics Ap, Llc | Liquid-air hybrid cooling in electronics equipment |
| US10225957B2 (en) | 2017-07-28 | 2019-03-05 | Baidu Usa Llc | Liquid cooling for electronic racks with liquid cooled IT components in data centers |
| US11735948B2 (en) * | 2019-07-26 | 2023-08-22 | Baidu Usa Llc | Bi-directional multi-function converter for backup battery unit |
| EP4150216A4 (de) | 2020-05-11 | 2023-11-01 | Coolit Systems, Inc. | Flüssigkeitspumpeinheiten sowie zugehörige systeme und verfahren |
| US11606885B2 (en) | 2020-12-29 | 2023-03-14 | Baidu Usa Llc | Composite multiple channel liquid component for liquid cooled electronics |
| US11576283B2 (en) | 2021-04-13 | 2023-02-07 | Dell Products L.P. | Modular and highly available cooling distribution unit for information handling systems |
| US11882676B2 (en) | 2021-08-20 | 2024-01-23 | Baidu Usa Llc | Server and rack codesign with a high reliable structure |
-
2023
- 2023-10-06 DE DE102023127303.5A patent/DE102023127303B3/de active Active
-
2024
- 2024-09-24 KR KR1020257039115A patent/KR20260003062A/ko active Pending
- 2024-09-24 EP EP24787057.9A patent/EP4677967A1/de active Pending
- 2024-09-24 CN CN202480036875.9A patent/CN121264180A/zh active Pending
- 2024-09-24 WO PCT/DE2024/100839 patent/WO2025073316A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102023127303B3 (de) | 2025-01-23 |
| KR20260003062A (ko) | 2026-01-06 |
| CN121264180A (zh) | 2026-01-02 |
| WO2025073316A1 (de) | 2025-04-10 |
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