Abstract: Heat sink and heat sink arrangements are provided for an electronic device immersed in a liquid coolant. A heat sink may comprise: a base for mounting on top of a heat-transmitting surface of the electronic device and transferring heat from the heat-transmitting surface; and a retaining wall extending from the base and defining a volume. A heat sink may have a wall arrangement to define a volume, in which the electronic device is mounted. A heat sink may be for an electronic device to be mounted on a surface in a container, in an orientation that is substantially perpendicular to a floor of the container. Heat is transferred from the electronic device to liquid coolant held in the heat sink volume. A cooling module comprising a heat sink is also provided. A nozzle arrangement may direct liquid coolant to a base of the heat sink.

Abstract: A system for cooling a plurality of electronic devices, having a first cooling circulatory arrangement, configured to cause a first liquid coolant to circulate between a first electronic device and a heat exchanger, wherein the first electronic device is thermally coupled to the first liquid coolant. The system also has a second cooling circulatory arrangement, configured to cause a second liquid coolant to flow through the heat exchanger, and to cause the second liquid coolant to flow through a cooling module thermally coupled to a second electronic device. The first cooling circulatory arrangement and the second cooling circulatory arrangement are thermally coupled via the heat exchanger, such that the heat exchanger is configured to transfer heat from the first liquid coolant to the second liquid coolant.

Abstract: A housing is provided for mounting within an enclosure, for example a module for cooling electronic devices, that is arranged to contain a liquid coolant. The housing comprises: a wall structure, arranged to define a plurality of mounting chambers, each mounting chamber being configured to hold at least one respective electronic device and having a respective chamber coolant inlet for receiving liquid coolant, such that liquid coolant received through each chamber coolant inlet accumulates in the respective mounting chamber around the respective electronic device; a housing coolant inlet, for receiving liquid coolant from outside the housing; and a liquid coolant manifold, arranged to receive liquid coolant from the housing coolant inlet and provide the received liquid coolant to each of the chamber coolant inlets.

Abstract: A manifold is provided for distribution of dielectric coolant within a chassis, to allow the dielectric coolant to receive heat from at least one electronic component mounted within the chassis. The manifold comprises: a circuit board, having first and second opposing surfaces; and a substrate, at least partially spaced apart from the circuit board and a gap between a first surface of the circuit board and the substrate being configured to receive and contain dielectric coolant. One or more apertures are provided in the circuit board or substrate to allow dielectric coolant contained in the gap to flow across the opposing surfaces of the circuit board or substrate.

Abstract: A heat sink for cooling a heat generating device comprises: a housing, comprising: a heat transfer block for receiving heat from the heat generating device; and side walls, extending from the heat transfer block, the heat transfer block and side walls together defining an internal volume for receiving a coolant from external the heat sink; and a plurality of heat pipes and/or vapour chambers, each heat pipe and/or vapour chamber extending from the heat transfer block within the internal volume. A cooled electronic system comprises: an electronic device that generates heat in use, heat being dissipated from the electronic device through an external surface of the electronic device; and the heat sink, having the heat transfer block mounted on the external surface of the electronic device.

Abstract: A nozzle arrangement for cooling an electronic component. The nozzle arrangement comprises: a nozzle for discharging liquid coolant; and a mount configured to disperse the liquid coolant, the mount further configured to be coupled with the electronic component. The nozzle is coupled to the mount such that, in use, the liquid coolant is discharged from the nozzle through the mount and dispersed by the mount.

Abstract: Heat sink and heat sink arrangements are provided for an electronic device immersed in a liquid coolant. A heat sink may comprise: a base for mounting on top of a heat-transmitting surface of the electronic device and transferring heat from the heat-transmitting surface; and a retaining wall extending from the base and defining a volume. A heat sink may have a wall arrangement to define a volume, in which the electronic device is mounted. A heat sink may be for an electronic device to be mounted on a surface in a container, in an orientation that is substantially perpendicular to a floor of the container. Heat is transferred from the electronic device to liquid coolant held in the heat sink volume. A cooling module comprising a heat sink is also provided. A nozzle arrangement may direct liquid coolant to a base of the heat sink.

Abstract: A system for cooling a plurality of electronic devices, having a first cooling circulatory arrangement, configured to cause a first liquid coolant to circulate between a first electronic device and a heat exchanger, wherein the first electronic device is thermally coupled to the first liquid coolant. The system also has a second cooling circulatory arrangement, configured to cause a second liquid coolant to flow through the heat exchanger, and to cause the second liquid coolant to flow through a cooling module thermally coupled to a second electronic device. The first cooling circulatory arrangement and the second cooling circulatory arrangement are thermally coupled via the heat exchanger, such that the heat exchanger is configured to transfer heat from the first liquid coolant to the second liquid coolant.

Abstract: A nozzle arrangement for cooling an electronic component. The nozzle arrangement comprises: a nozzle for discharging liquid coolant; and a mount configured to disperse the liquid coolant, the mount further configured to be coupled with the electronic component. The nozzle is coupled to the mount such that, in use, the liquid coolant is discharged from the nozzle through the mount and dispersed by the mount.

Abstract: An apparatus and system for cooling a plurality of electronic devices (25, 26) disposed on a circuit board (1) are provided. The apparatus comprises a plurality of cold plates (7, 8), each cold plate (7, 8) having a thermal interface surface for cooling an electronic device (25, 26) thermally coupled thereto. The apparatus comprises a support frame to which each of the plurality of cold plates (7, 8) is attached, the support frame configured for attachment to the circuit board so as to hold the thermal interface surfaces of the plurality of cold plates (7, 8) in thermal contact with the plurality of electronic devices (25, 26). The support frame is arranged to hold the thermal interface surface of each of the plurality of cold plates (7, 8) at a different position relative to the support frame.

Abstract: A cold plate is configured to use isolated primary and secondary liquid coolants and comprises: a thermally conductive body defining an internal volume and arranged for mounting with respect to an electronic device, so as to transfer heat from the electronic device to the internal volume; a coolant inlet for receiving the secondary liquid coolant into the internal volume to receive the transferred heat; and a coolant outlet for the secondary liquid coolant to flow out of the internal volume. The thermally conductive body is configured to define an external receptacle having a volume arranged to receive and retain the primary liquid coolant for heat transfer between the primary and secondary liquid coolants. The cold plate may form part of a system for cooling electronic devices.

Abstract: A module is provided for housing electronic devices and a liquid coolant. The module comprises: a housing defining a sealable internal volume for containing the electronic devices and the liquid coolant, the sealable internal volume having a base; a substrate in the sealable internal volume approximately parallel to the base, one of the electronic devices being mounted on a side of the substrate proximal the base; and a heat sink device, comprising a receptacle part defining an internal volume that is arranged to receive the liquid coolant and accumulate the liquid coolant therein. The heat sink is mounted such that the one of the electronic devices or a component that is thermally conductively coupled to the one of the electronic devices is at least partially within the internal volume.

Abstract: Heat sink and heat sink arrangements are provided for an electronic device immersed in a liquid coolant. A heat sink may comprise: a base for mounting on top of a heat-transmitting surface of the electronic device and transferring heat from the heat-transmitting surface; and a retaining wall extending from the base and defining a volume. A heat sink may have a wall arrangement to define a volume, in which the electronic device is mounted. A heat sink may be for an electronic device to be mounted on a surface in a container, in an orientation that is substantially perpendicular to a floor of the container. Heat is transferred from the electronic device to liquid coolant held in the heat sink volume. A cooling module comprising a heat sink is also provided. A nozzle arrangement may direct liquid coolant to a base of the heat sink.

Abstract: A system and a method for cooling a plurality of electronic devices housed in a housing of an electronic module. The system comprises a first cooling circulatory arrangement, configured to circulate a first liquid coolant between a first electronic device of the plurality of electronic devices and a heat exchanger, the first electronic device being thermally coupled to the first liquid coolant such that heat is transferred from the first electronic device to the first liquid coolant. The system further comprises a second cooling circulatory arrangement, configured to circulate a second liquid coolant between a second electronic device of the plurality of electronic devices and the heat exchanger, the second electronic device being thermally coupled to the second liquid coolant such that heat is transferred from the second electronic device to the second liquid coolant.

Abstract: A manifold is provided for distribution of dielectric coolant within a chassis, to allow the dielectric coolant to receive heat from at least one electronic component mounted within the chassis. The manifold comprises: a circuit board, having first and second opposing surfaces; and a substrate, at least partially spaced apart from the circuit board and a gap between a first surface of the circuit board and the substrate being configured to receive and contain dielectric coolant. One or more apertures are provided in the circuit board or substrate to allow dielectric coolant contained in the gap to flow across the opposing surfaces of the circuit board or substrate.

Abstract: A module is provided for housing electronic devices and a liquid coolant. The module comprises: a housing defining a sealable internal volume for containing the electronic devices and the liquid coolant, the sealable internal volume having a base; a substrate in the sealable internal volume approximately parallel to the base, one of the electronic devices being mounted on a side of the substrate proximal the base; and a heat sink device, comprising a receptacle part defining an internal volume that is arranged to receive the liquid coolant and accumulate the liquid coolant therein. The heat sink is mounted such that the one of the electronic devices or a component that is thermally conductively coupled to the one of the electronic devices is at least partially within the internal volume.

Abstract: A system for cooling a plurality of electronic devices, having a first cooling circulatory arrangement, configured to cause a first liquid coolant to circulate between a first electronic device and a heat exchanger, wherein the first electronic device is thermally coupled to the first liquid coolant. The system also has a second cooling circulatory arrangement, configured to cause a second liquid coolant to flow through the heat exchanger, and to cause the second liquid coolant to flow through a cooling module thermally coupled to a second electronic device. The first cooling circulatory arrangement and the second cooling circulatory arrangement are thermally coupled via the heat exchanger, such that the heat exchanger is configured to transfer heat from the first liquid coolant to the second liquid coolant.

Abstract: An apparatus for cooling one or more heat generating components comprises: a sealable enclosure defining a volume for containing a first coolant and one or more heat generating components; a conduit surrounded by the volume, the conduit enabling a second coolant to enter and leave the enclosure, the conduit providing a fluid-tight seal between the first coolant and the second coolant when the first coolant within the volume surrounds the conduit; and a pump within the enclosure configured to direct the first coolant to the conduit such that heat is exchanged between the first coolant and the second coolant.

Abstract: An apparatus for cooling one or more heat generating components comprises: a sealable enclosure defining a volume for containing a first coolant and one or more heat generating components; a conduit surrounded by the volume, the conduit enabling a second coolant to enter and leave the enclosure, the conduit providing a fluid-tight seal between the first coolant and the second coolant when the first coolant within the volume surrounds the conduit; and a pump within the enclosure configured to direct the first coolant to the conduit such that heat is exchanged between the first coolant and the second coolant.

Abstract: Heat sink and heat sink arrangements are provided for an electronic device immersed in a liquid coolant. A heat sink may comprise: a base for mounting on top of a heat-transmitting surface of the electronic device and transferring heat from the heat-transmitting surface; and a retaining wall extending from the base and defining a volume. A heat sink may have a wall arrangement to define a volume, in which the electronic device is mounted. A heat sink may be for an electronic device to be mounted on a surface in a container, in an orientation that is substantially perpendicular to a floor of the container. Heat is transferred from the electronic device to liquid coolant held in the heat sink volume. A cooling module comprising a heat sink is also provided. A nozzle arrangement may direct liquid coolant to a base of the heat sink.