A method of fabricating an oscillating heat pipe includes building the oscillating heat pipe with a layer-by-layer additive manufacturing process such that the oscillating heat pipe includes a body of solid material, an array of channels, an evaporator portion, and a condenser portion. The array of channels are disposed in the body and define a continuous loop through which a fluid flows. The array of channels is formed by cavities in the body as the body is formed with layer-by-layer additive manufacturing. An inner surface of a channel includes a flow directing feature that is configured to promote a first direction of flow and that is configured to provide resistance against a second direction of flow that is opposite the first direction of flow.

An example memory cooler may include a vapor chamber device and a number of heat pipes connected to the vapor chamber device. The vapor chamber device may include walls that bound a vapor chamber, the heat pipes may include vapor channels, and the heat pipes may be connected to a first wall of the vapor chamber device such that their respective vapor channels are communicably connected to the vapor chamber. The example memory cooler may also include fins extending from a second wall of the vapor chamber device, the second wall bounding the vapor chamber. The fins and the second wall may be part of the same continuous body.

A method of forming a wick assembly is disclosed including positioning an inner ring in a first wick, positioning the inner ring in a second wick, abutting an end of the first wick with an end of the second wick, positioning an outer ring about a portion of the first wick and a portion of the second wick, positioning a mandrel within the inner ring, positioning a die about the outer ring, and applying a force to the die, wherein the force couples the outer ring, the inner ring, the first wick, and the second wick together to form the wick assembly.

A heat conducting structure comprises a heat conducting unit, a first heat conducting layer, a metal microstructure, a second heat conducting layer, and a working fluid. The closed chamber of the heat conducting unit has a bottom surface and a top surface opposite to each other. The first heat conducting layer is disposed on the bottom surface and/or the top surface of the closed chamber. The metal microstructure is disposed on the first heat conducting layer such that the first heat conducting layer is located between the metal microstructure and the bottom surface and/or the top surface. The second heat conducting layer is disposed at one side of the metal microstructure away from the first heat conducting layer. The working fluid is disposed in the closed chamber of the heat conducting unit. A manufacturing method of the heat conducting structure and a mobile device are also disclosed.

A evaporator of a loop heat pipe includes a liquid inlet side portion that extends in a widthwise direction crossing with a lengthwise direction from a liquid inlet side to a vapor outlet side, a plurality of portions that continue to the liquid inlet side portion and extend in the lengthwise direction, a plurality of vapor flow paths that are provided between the plurality of portions and extend in the lengthwise direction, and a vapor outlet side vapor flow path that extends in the widthwise direction and continues to the vapor flow paths. Each of the plurality of portions includes a first groove communicating two adjacent ones of the vapor flow paths.

A method of fabricating an oscillating heat pipe includes building the oscillating heat pipe with a layer-by-layer additive manufacturing process such that the oscillating heat pipe includes a body of solid material, an array of channels, an evaporator portion, and a condenser portion. The array of channels are disposed in the body and define a continuous loop through which a fluid flows. The array of channels is formed by cavities in the body as the body is formed with layer-by-layer additive manufacturing. An inner surface of a channel includes a flow directing feature that is configured to promote a first direction of flow and that is configured to provide resistance against a second direction of flow that is opposite the first direction of flow.

A heat pipe includes an inlet through which a working fluid is injected. The inlet includes a non-sealed portion and a sealed portion connected to the non-sealed portion. The non-sealed portion and the sealed portion each include two outermost metal layers and a plurality of intermediate metal layers stacked between the outermost metal layers. The heat pipe further includes a porous body arranged in the inlet.

A heat pipe includes an inlet port. The inlet port includes an unsealed part and a sealed part that include metal layers that are a first outermost layer, intermediate layers stacked on the first outermost layer, and a second outermost layer stacked on the intermediate layers. In the unsealed part, the intermediate layers include respective openings and respective first and second walls on first and second opposite sides, respectively, of the openings. The openings form an injection channel defined by the first and second outermost layers and the first and second walls of the intermediate layers. The inner wall faces of the first walls and the inner wall faces of the second walls of at least two adjacent intermediate layers form a first step and a second step, respectively. In the sealed part, each metal layer contacts one or more of other metal layers to hermetically seal the inlet port.

Disclosed are an integrated vapor chamber and its manufacturing method, the vapor chamber includes a casing base, a fin, a sealed portion and a working fluid, and the casing base is formed by an evacuation method and includes a bottom plate, a top plate, a side plate, and a cavity formed and enclosed by the bottom plate, the top plate and the side plate. Each fin is formed and extended from a surface of the top plate with its back facing the bottom plate, and each sealed portion is formed at the front and rear ends of the cavity separately, and the working fluid is filled into the cavity. The vapor chamber not just features easy manufacturing only, but also provides good heat dissipation effect.

A zone-control unit for use in a heating, ventilation, and air conditioning (HVAC) system, the zone-control unit includes a heat exchanger, an inlet piping assembly coupled with the heat exchanger for supplying fluid to the heat exchanger, an outlet piping assembly coupled with the heat exchanger for receiving fluid from the heat exchanger, a bracket that maintains the inlet piping assembly and the outlet piping assembly in positional relationship, and an ancillary component coupled with the heat exchanger.