An energy storage system is provided. The energy storage system includes a first housing comprising thermal insulation, the first housing defining a lower temperature region, at least one energy storage module positioned within said first housing, and an electronics assembly positioned within the lower temperature region of said first housing. The electronics assembly includes a second housing comprising thermal insulation, the second housing defining a higher temperature region that is thermally isolated from the lower temperature region, at least one power electronics component positioned within the higher temperature region of the second housing, and an air conduit extending through said second housing, the air conduit configured to channel ambient air external to the first housing through the higher temperature region to cool said at least one power electronics component.

A motor vehicle comprises a drive train with an electric motor, to which a traction battery and a power electronics device comprising at least one pulse inverter are associated, and a cooling device for cooling the electric motor, the power electronics device and the traction battery, wherein the electric motor is cooled in a first cooling circuit with coolant of a first maximum temperature in the supply flow, wherein the power electronics device is cooled in a second coolant circuit, which is separate from the first coolant circuit, using coolant of a second maximum temperature in the supply flow, which is lower than the first maximum temperature.

A coolant supplying module is for supplying a coolant stored in a shared reservoir tank to an electrical component cooling circuit and a battery cooling circuit, and includes a main body connected to the shared reservoir tank, at least one valve mounting portion formed inside the main body to mount at least one valve device, at least one pump mounting portion formed inside the main body to mount at least one water pump, and a control portion mounted outside the main body and electrically connected to the at least one valve device and the at least one water pump.

A coolant supplying module is for supplying a coolant stored in a shared reservoir tank to an electrical component cooling circuit and a battery cooling circuit, and includes a main body connected to the shared reservoir tank, at least one valve mounting portion formed inside the main body to mount at least one valve device, at least one pump mounting portion formed inside the main body to mount at least one water pump, and a control portion mounted outside the main body and electrically connected to the at least one valve device and the at least one water pump.

A power supply system includes a power conversion circuit that is connectable to a power storage unit. The power supply system includes a control unit and a heat transferring unit. The control unit supplies a current between the power storage unit and the power conversion circuit by performing on-off control of a switch that configures the power conversion circuit. The heat transferring unit absorbs heat that is generated in the power conversion circuit in accompaniment with the on-off control of the switch and transfers the heat to a temperature-increase target element. The control unit performs temperature-increase mode control in which the switch is on-off controlled such that an amount of heat that is generated in the power conversion circuit is increased when a temperature-increase request for the temperature-increase target element is present, compared to when the temperature-increase request is not present.

The electrical equipment battery includes: a circuit board mounted with a heat generating element; and an outer case having a heat radiation plate made of metal. A heat transfer space is defined between the circuit board and the heat radiation plate, and then an electrical-insulating and heat-conducting gel is filled in the heat transfer space. Heat energy of the heat generating element is radiated to the outside via the heat radiation plate of the outer case. The heat radiation plate is provided with a flow-out block partition on the outer side of the heat transfer space. The flow-out block partition suppresses the electrical-insulating and heat-conducting gel from flowing out from the heat transfer space.

The electrical equipment battery includes: a circuit board mounted with a heat generating element; and an outer case having a heat radiation plate made of metal. A heat transfer space is defined between the circuit board and the heat radiation plate, and then an electrical-insulating and heat-conducting gel is filled in the heat transfer space. Heat energy of the heat generating element is radiated to the outside via the heat radiation plate of the outer case. The heat radiation plate is provided with a flow-out block partition on the outer side of the heat transfer space. The flow-out block partition suppresses the electrical-insulating and heat-conducting gel from flowing out from the heat transfer space.

An apparatus includes a frame component of a head-mounted device (HMD), an eyepiece, a battery, a processor, a heat pipe, and a hinge. The frame component includes a first compartment, a second compartment, and a channel connecting the first compartment and the second compartment. The heat pipe may extend from the first compartment to the second compartment through a channel and may be configured to transfer heat from the processor to the battery. A rate of heat transfer through the hinge may be greater than a threshold value when the hinge is in an open conformation that configures the frame component to be positioned along the side of the head. The heat transfer through the hinge may be smaller than the threshold value when the hinge is in a folded conformation that configures the frame component to be positioned for storage.

Systems and methods for managing airflow in a backup battery unit (BBU) rack are described in the disclosure. In one embodiment, a system includes a BBU rack with a number of BBU modules, the BBU rack configured to power a server rack in a data center. The system further includes one or more crossflow fans, each crossflow fan configured to dynamically adjust its air blowing direction in real time; and a rack management controller that are connected to the server rack, the BBU rack and the one or more crossflow fans. The crossflow fan is equipped with a rotatable frame for airflow variations. The one or more crossflow fans to diffuse cooling air into one or more of the BBU modules in response to a power supply incident after receiving control signals from either a rack management controller and/or the BBU rack controller.

Systems and methods for managing airflow in a backup battery unit (BBU) rack are described in the disclosure. In one embodiment, a system includes a BBU rack with a number of BBU modules, the BBU rack configured to power a server rack in a data center. The system further includes one or more crossflow fans, each crossflow fan configured to dynamically adjust its air blowing direction in real time; and a rack management controller that are connected to the server rack, the BBU rack and the one or more crossflow fans. The crossflow fan is equipped with a rotatable frame for airflow variations. The one or more crossflow fans to diffuse cooling air into one or more of the BBU modules in response to a power supply incident after receiving control signals from either a rack management controller and/or the BBU rack controller.