A water block assembly includes first and second water block units having respective first and second fluid conduits. The second water block unit is stacked on the first water block unit. The second fluid conduit operates either in parallel with the first fluid conduit or fluidly independent therefrom, such that cooled fluid is fed to the first and second fluid conduits. The first water block unit includes a first base portion and a first cover portion disposed on and affixed to the first base portion. The first cover portion defines a first fluid inlet and a first fluid outlet of the first fluid conduit. The second water block unit includes a second base portion and a second cover portion disposed on and affixed to the second base portion. The second cover portion defines a second fluid inlet and a second fluid outlet of the second fluid conduit.

Methods of producing coolant-cooled heat sinks with a coolant-carrying compartment between a cover and a heat transfer base are provided. The heat transfer base includes a heat transfer surface to couple to a component to be cooled, and a plurality of thermally-conductive fins extending into the coolant-carrying compartment from a surface of the heat transfer base opposite to the heat transfer surface. The method includes positioning a screen with openings over the plurality of thermally-conductive fins, between the plurality of thermally-conductive fins and the cover, and providing a joining material over the screen, between the screen and the cover. The method also includes joining the plurality of thermally-conductive fins to the cover across the screen using the joining material, where the screen facilitates retaining the joining material over the plurality of thermally-conductive fins during the joining.

The present invention provides a gravity-driven gas-liquid circulation device, comprising a condensation unit and an evaporation unit. The condensation unit has an end connected to a gaseous phase input tube and another end connected to a liquid phase output tube. The evaporation unit comprises a thermally conductive base for contact with an external high-temperature device, a plurality of fins integrally formed on the thermally conductive base, and an integrally formed sealing housing provided on the thermally conductive base and enclosing the fins, wherein the integrally formed sealing housing is provided with a gas outlet hole and a liquid inlet hole, the gas outlet hole is lower than the gaseous phase input tube and is connected to an end of the gaseous phase input tube in order to guide a high-temperature gaseous-state working fluid through the gaseous phase input tube to the condensation unit, and the liquid inlet hole is level with or lower than the liquid phase output tube and is connected to an end of the liquid phase output tube in order to receive a liquid-state working fluid, allowing a force of gravity acting on the liquid-state working fluid to provide a siphoning force and thereby cause circulation of the liquid-state working fluid and the gaseous-state working fluid.

A thermal energy storage apparatus is disclosed. The apparatus may include a base and fluid flow plates which cooperate with the base to define a cavity; a phase change material contained within the cavity; an external seed crystal reservoir trigger assembly at least partially positioned within the phase change material; and end plates which cooperate with the fluid flow plates to define fluid flow channels. The apparatus may include a housing that holds a heat exchanger and phase change material. Inlet and outlet ports allow for the ingress and egress of a heat exchange fluid into the fluid flow channels or heat exchanger. In operation, actuation of the external seed crystal reservoir trigger assembly to an open state induces solidification of at least a portion of the phase change material from a supercooled liquid state to a solid state, releasing thermal energy, allowing for the transfer of thermal energy across the fluid flow plates or heat exchanger from the phase change material to the heat exchange fluid.

A vehicular heat management system includes a heat pump cycle capable of heating a heat-exchanging-object fluid by using exhaust heat of an in-vehicle device as a heat source that radiates heat during operation, and an exhaust-heat refrigerant circuit that releases the exhaust heat to outside air through an exhaust-heat refrigerant. The heat pump cycle includes a recovery heat exchange portion that performs heat exchange between a heated air heated by the exhaust heat and a cycle refrigerant circulating in the heat pump cycle. The exhaust-heat refrigerant circuit includes an exhaust-heat exchange portion that performs heat exchange between the heated air and the exhaust-heat refrigerant. The recovery heat exchange portion and the exhaust-heat exchange portion are integrally formed as a combined heat exchanger capable of transferring heat between the cycle refrigerant and the exhaust-heat refrigerant.

In a heat exchanger, each of a plurality of heat exchange members includes: a flat pipe; and a heat transfer plate integrated with the flat pipe along a longitudinal direction of the flat pipe. A width direction of each of the flat pipes intersects with a direction in which the plurality of heat exchange members are arranged side by side. Each of the heat transfer plates includes an extending portion extending outward in the width direction of each of the flat pipes from at least one of one end of a corresponding one of the flat pipes in the width direction and another end of the corresponding one of the flat pipes in the width direction. Each of the flat pipes has one or more flat pipe bent portions, each forming a groove extending along the longitudinal direction of the flat pipes.

A heat exchanger can include a plurality of flat tubes each having a heat exchange channel for a flow of a heat exchange medium, and a first collector pipe and a second collector pipe connected to distal sections of the plurality of flat tubes and disposed side by side. Chambers of the first collector pipe and the second collector pipe can be in communication with the heat exchange channels of the flat tubes. The flat tube includes a main body section, a distal section, and a torsion section connected therebetween. The main body section and the distal sections can be straight sections. The first collector pipe and the second collector pipe can be provided with mounting holes for the distal section being inserted into. A length direction of the mounting hole can be inclined to the axis of the first collector pipe or the axis of the second collector pipe.

A thin heat exchange panel includes a contact side that is in contact with a heat source and a plurality of heat exchange channels disposed in the contact side. A water inlet channel of the heat exchange panel is connected with a high-pressure pump for inputting high-pressure water, and a water outlet channel of the heat exchange panel is connected with a cooler to form a circulating cooling system. When the high-pressure pump is started, the high-pressure water quickly enters the water inlet channel. Reduced control holes communicating with the water inlet channel are configured to regulate the average flow rate and increase the speed of the water to bring a high-speed jet effect, which improves the heat exchange rate of the water in the heat exchange channels to achieve the effects of low damping, high heat dissipation efficiency and thinning.

An electric device (1) comprises a portion generating heat and a portion for dissipating said generated heat by heat exchange with a fluid, wherein said heat dissipating portion comprises means for generating a turbulent flow in the fluid.

A heat exchanger having alternating first and second fluid passages with perpendicular flow directions separated by channels, spacer bars located at sides of the first fluid passages, side walls located at sides of the second fluid passages that are formed by folded portions of pairs of adjacent channels coupled to form a joint, fins located within the fluid passages, and side panels located at and sealing oppositely disposed ends of the series of alternating fluid passages. The heat exchanger can be produced with methods that include providing and advancing a continuous, elongated strip of material along a path, flattening the strip, folding edges of the strip to define partial fold patterns, cutting a formed portion of the strip to produce one of the channels, and assembling pairs of the channels such that the respective partial fold patterns interlock or overlap to define a joint.