摘要:
A grooved sintered wick for a heat pipe is provided having a plurality of individual particles which together yield an average particle diameter. The grooved sintered wick further includes at least two adjacent lands that are in fluid communication with one another through a particle layer disposed between the lands where the particle layer comprises at least one dimension that is no more than about six average particle diameters. A heat pipe is also provided comprising a grooved wick that includes a plurality of individual particles having an average diameter. The grooved wick includes at least two adjacent lands that are in fluid communication with one another through a particle layer disposed between the lands that comprises less than about six average particle diameters. A method for making a heat pipe wick in accordance with the foregoing structures is also provided.
摘要:
The apparatus is a cooling structure for laptop computers, in which the heat is transferred to a heat pipe in the cover of the case behind the display screen. The heat pipe behind the screen is interconnected with the external wall of the cover by a holding fixture which, preferably, is integrated into the cover wall during manufacture. The cover is specially constructed with high thermal conductivity carbon fibers which are oriented to preferentially conduct heat from the heat pipe to the cover and to spread the heat over the entire external surface of the cover for dissipation into the environment.
摘要:
A heat pipe is provided having a tubular enclosure with an internal surface, a working fluid disposed within the enclosure, and at least one fin projecting radially outwardly from an outer surface of the tubular enclosure. The tubular enclosure is sealed at one end by a base having a grooved sintered wick disposed on at least a portion of its internally facing surface. The grooved, sintered wick comprises a plurality of individual particles having an average diameter. The grooved wick includes at least two adjacent lands that are in fluid communication with one another through a particle layer disposed between said at least two adjacent lands that comprises less than about six average particle diameters.
摘要:
The apparatus is a device for transferring heat across the hinged joint between the two sections of the case of a laptop computer. Two simple heat pipe cylinders are inserted into parallel cylindrical holes in a heat conductive block. One cylinder is bonded within its hole, and the other cylinder is permitted to rotate within its hole. The axis of the rotatable cylinder is located in line with the axis of the mechanical hinges which permit the panels to pivot relative to each other. A heat producing device in one panel can be then attached to one heat pipe, and a heat sink on the other panel can be attached to the other heat pipe. The heat transfer between the heat source and the heat sink is essentially that of a heat pipe except for the very short heat conductive path through the solid block and the one rotating joint.
摘要:
A grooved sintered wick for a heat pipe is provided having a plurality of individual particles which together yield an average particle diameter. The grooved sintered wick further includes at least two adjacent lands that are in fluid communication with one another through a particle layer disposed between the lands where the particle layer comprises at least one dimension that is no more than about six average particle diameters. A heat pipe is also provided comprising a grooved wick that includes a plurality of individual particles having an average diameter. The grooved wick includes at least two adjacent lands that are in fluid communication with one another through a particle layer disposed between the lands that comprises less than about six average particle diameters. A method for making a heat pipe wick in accordance with the foregoing structures is also provided.
摘要:
A thermal energy management system is provided having a heat spreading device that is operatively engaged with at least one semiconductor chip and a thermal bus operatively engaged with the heat spreading device so as to transport thermal energy from the heat spreading device to a heat sink. The heat spreading device includes a heat pipe and the thermal bus includes a loop thermosyphon. A second thermal bus may be operatively engaged with the first-thermal bus so as to transport thermal energy from the first thermal bus to a heat sink. The second thermal bus may also include a loop thermosyphon. A method of managing thermal energy in an electronic system is also provided that includes spreading thermal energy generated by one or more devices over a surface that is relatively larger than the devices, thermally coupling an evaporator portion of a loop thermosyphon to the surface, and thermally coupling a condensing portion of the loop thermosyphon to a thermal energy sink, e.g., a second loop thermosyphon, convection fin, or cold plate.
摘要:
A thermal energy management system is provided having a heat spreading device that is operatively engaged with at least one semiconductor chip and a thermal bus operatively engaged with the heat spreading device so as to transport thermal energy from the heat spreading device to a heat sink. The heat spreading device includes a heat pipe and the thermal bus includes a loop thermosyphon. A second thermal bus may be operatively engaged with the first thermal bus so as to transport thermal energy from the first thermal bus to a heat sink. The second thermal bus may also include a loop thermosyphon. A method of managing thermal energy in an electronic system is also provided that includes spreading thermal energy generated by one or more devices over a surface that is relatively larger than the devices, thermally coupling an evaporator portion of a loop thermosyphon to the surface, and thermally coupling a condensing portion of the loop thermosyphon to a thermal energy sink, e.g., a second loop thermosyphon, convection fin, or cold plate.
摘要:
A semiconductor package is provided that includes a substrate having a top surface, a cover, and at least one semiconductor device attached to the top surface of the substrate. The cover is secured to the substrate so as to create a space between the interior surface and the substrate such that the semiconductor device resides within the space. The cover has an interior surface comprising a plurality of micro-channels. A wick is positioned in confronting relation to the plurality of micro-channels and the semiconductor device, with a two-phase vaporizable liquid disposed within the space.
摘要:
The apparatus is a heat transferring clamp with a heat pipe connecting the clamp's stationary base part to each moveable clamping part. A connecting heat pipe section between the heat pipe sections in the base part and each clamping part is flexible enough to permit both the required clamping and unclamping movements of the clamping part. The heat pipes thereby provide a superior heat transfer path between a clamped circuit board or other device and an available heat sink.
摘要:
The disclosure is for a method of installing a heat pipe within another structure. A completely processed heat pipe is coated with solder and inserted into a cylindrical hole within the structure with sliding clearance. The casing of the heat pipe is then expanded into tight contact with the surrounding hole by heating the heat pipe and expanding the heat pipe casing with the heat pipe's own internal vapor pressure. The application of heat also simultaneously melts the solder to bond the heat pipe into the hole.