The use of a heat-transfer composition including at least one refrigerant chosen from halogenated hydrocarbons, perhalogenated hydrocarbons, fluorinated ketones, fluorinated ethers and also combinations thereof, and at least one dielectric fluid, for cooling a battery of an item of equipment, such as an electric or hybrid vehicle, the heat-transfer composition having a volume resistivity of greater than or equal to 106 Ω.Math.cm at 25° C.

A two-phase immersion cooling device includes a box body, a plurality of heating elements, a condenser, a cover body, and at least one fan. The box body includes a plurality of side walls and a bottom wall, the side walls are connected to each other top to bottom, the bottom wall is connected to one end of the side walls, the side walls and the bottom wall jointly form an accommodating cavity, and the accommodating cavity contains coolant. The condenser is received in the accommodating cavity, and is arranged along sidewalls of the tank. An upper cavity surrounded by the condenser is defined. The cover body covers the box body to seal the accommodating cavity, the cover body expands on the box body to expose the accommodating cavity to outside. At least one fan is fixedly disposed on the cover body and is accommodated in the upper cavity.

Devices and methods are provided herein useful to thermal management. In some embodiments, a thermal management device includes a housing with a fixed amount of working fluid disposed therein. The substrate is in thermal communication with the thermal management device such that evaporation of the working fluid controls the temperature of the substrate. Evaporated working fluid exits the housing through one or more vents. The housing further includes a plurality of supports that increase the surface area to volume ratio of the housing. The high surface area to volume ratio of the housing increases the rate of heat transfer and also minimizes or otherwise reduces the size and weight of the thermal management device. The supports may further serve to mechanically support the substrate, enabling the housing to act as a combined thermal and mechanical device.

Techniques are described for managing temperature in an autonomous vehicle. An exemplary method comprises performing autonomous driving operations that operate the autonomous vehicle in an autonomous mode, receiving one or more messages from a temperature sensor associated with an electrical device located on or in the autonomous vehicle while the autonomous vehicle is operated in the autonomous mode, determining a cooling technique to reduce the temperature of electrical device, and performing the cooling technique.

An immersion cooling system includes a cooling tank, a housing and a valve. The coolant tank is configured to accommodate a liquid coolant and an electronic device immersed in the liquid coolant. The housing covers a side of the cooling tank and thereby forms an enclosure. The valve has two ports, one of which communicates with the enclosure and the other communicates with a part of the cooling tank above the liquid coolant. The valve is configured to open in response to a gas pressure inside the cooling tank exceeding an upper limit.

A liquid-submersible thermal management system includes a cylindrical outer shell and an inner shell positioned in an interior volume of the outer shell. The cylindrical outer shell has a longitudinal axis oriented vertically relative to a direction of gravity, and the inner shell defines an immersion chamber. The liquid-submersible thermal management system a spine positioned inside the immersion chamber and oriented at least partially in a direction of the longitudinal axis with a heat-generating component located in the immersion chamber. A working fluid is positioned in the immersion chamber and at least partially surrounding the heat-generating component. The working fluid receives heat from the heat-generating component.

Systems and methods for cooling a datacenter are disclosed. In at least one embodiment, an in-rack refrigerant distribution unit (RDU) distributes refrigerant to one or more colds plates in association with a pressure control system to enable a pressure-drop before an expansion valve for a liquid-phase of a refrigerant based in part on a pressure of a liquid-phase of a refrigerant exceeding a first threshold and based in part on a temperature associated with one or more cold plates being below a second threshold.

An immersion cooling system includes an immersion tank and one or more information technology (IT) equipment situated within the immersion tank. The IT equipment is configured to provide IT services and is at least partially submerged within a phase change liquid, where, when the IT equipment provides the IT services, the IT equipment generates heat that is transferred to the phase change liquid thereby causing at least some of the phase change liquid to turn into vapor phase. The immersion cooling system includes a primary condenser unit positioned above the immersion tank and a secondary condenser unit, where, either a single, or both the primary and secondary condenser units are configured to receive cooling liquid from an external cooling unit to condense the phase change liquid in vapor phase back into liquid phase.

In one embodiment, a liquid cooling apparatus includes a first cooling loop to provide cooling liquid to a heat load, wherein the first cooling loop comprises a first condenser unit, a first liquid supply line, and a first vapor return line and a second cooling loop to provide cooling liquid to the heat load, wherein the second cooling loop comprises a second condenser unit, a second liquid supply line, and a second vapor return line, wherein the first vapor return line and the second vapor return line are coupled by an interconnection loop. The liquid cooling apparatus further includes a first pressure sensor coupled to the first vapor return line, a second pressure sensor coupled to the second vapor return line, and at least one main cooling source controlled based on the first pressure sensor and the second pressure sensor.

Methods, systems, devices and apparatuses for a charging apparatus for a vehicle. The charging apparatus includes a first sensor configured to measure or detect a temperature of the electronic device. The charging apparatus includes at least one of a blower, a bypass valve or a vent configured to adjust the temperature of the electronic device or a surface of a charging pad. The charging apparatus includes a processor coupled to the first sensor and the at least one of the blower, the bypass valve or the vent. The processor is configured to determine that the temperature of the electronic device exceeds a first threshold temperature. The processor is configured to control the at least one of the blower, the bypass valve or the vent to increase or decrease the temperature of the electronic device or the surface of the charging pad.