With Cooling Fins Patents (Class 361/703)
  • Patent number: 7027299
    Abstract: An electronics assembly, for example a computer that may be employed as a network server, has an enclosure, and a plurality of heat-generating components such as microprocessors located inside the enclosure. One or more fans may be provided for maintaining a through flow of air for cooling the components of the assembly. The heat-generating components are located within the enclosure in line with the direction of the flow of air, and the heat-sinks have a configuration such that the air flows over them in parallel. The heat-sinks may each have a flat base for mounting on the component, and a cantilevered portion having one end located on the base, and another end that extends beyond the base and over the base of the other heat-sink, but not in contact with it.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: April 11, 2006
    Assignee: Sun Microsystems, Inc.
    Inventors: Sean Conor Wrycraft, Jay Kevin Osborn
  • Patent number: 7018054
    Abstract: An electro-optical apparatus encased in the mounting case includes an electro-optical device in which the light emitted from a light source is incident on an image display region, and a mounting case including a plate disposed to face one surface of the electro-optical device and a cover to cover the electro-optical device, a portion of the cover abutting against the plate, wherein the mounting case accommodates the electro-optical device by holding at least a portion of a peripheral region located at the circumference of the image display region of the electro-optical device with at least one of the plate and the cover. In addition, the cover has a surface area increasing portion to increase the surface area thereof.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: March 28, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Tomoaki Miyashita, Hiroyuki Kojima, Hiromi Saitoh
  • Patent number: 7019973
    Abstract: Representative embodiments provide for a circuit device cooling apparatus having a first heat pipe which includes a first heat pipe condenser, and a second heat pipe which includes a second heat pipe condenser. A heat sink is attached to the first heat pipe condenser and the second heat pipe condenser. Another representative embodiment provides for a method of removing heat from a first circuit device and a second circuit device. The method includes providing a heat dissipating member, and connecting the first circuit device to the heat dissipating member with a first heat pipe. the method further includes connecting the second circuit device to the heat dissipating member with a second heat pipe, and providing compliance between the first heat pipe and the second heat pipe.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: March 28, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Rudy A. Rivera
  • Patent number: 7019969
    Abstract: A heat sink having air flow directors on each of multiple fins attached to a heat sink base. The air flow directors direct air flow from dual fans towards a geometric center of the heat sink base, which is above the hottest part of the integrated circuit (IC) package being cooled by the heat sink. In one embodiment, a protrusion in the geometric center of the heat sink base provides additional cooling from air impingement, and also directs air towards the upper portions of the fins. The use of dual fans allows the fans to run at a lower speed than a single fan, thus reducing an overall fan acoustic level. Furthermore, the dual fans allow for a backup fan if one of the fans should fail.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: March 28, 2006
    Assignee: International Business Machines Corporation
    Inventors: Jimmy Grant Foster, Sr., Michael Sean June, Albert Vincent Makley, Jason Aaron Matteson
  • Patent number: 7009290
    Abstract: A heat sink for semiconductor components or similar devices, especially produced from an extruded aluminum alloy. The heat sink comprises cooling ribs which rise at a distance from a base plate and which are clamped in an insert groove made in the surface of the base plate, laterally limited by longitudinal or intermediate ribs with a coupling base that has an approximately rectangular cross-section. The coupling bases are held in their insert grooves in a form-fit and are cold-welded with the base plate at least in some sections. Cross ribs extend at a distance to one another on the surfaces of the intermediate ribs and have the form of upset heels that are linked with the coupling base in a form-fit.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: March 7, 2006
    Assignee: Alcan Technology & Management Ltd.
    Inventors: Uwe Bock, Werner Graf, Stephan Bock
  • Patent number: 7002795
    Abstract: A thermal management device includes a thermally conductive core, a thermally conductive frame positioned around the core, the frame defining at least one opening, and at least one thermally conductive insert disposed in the opening in the frame.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: February 21, 2006
    Assignee: Intel Corporation
    Inventors: Mark A. Trautman, George Daskalakis
  • Patent number: 6995981
    Abstract: A heat sink assembly includes a heat-conductive base (20), and a plurality of combined fins (30) uprightly attached onto the base. Each fin includes a main body (31), a bottom flange (32) extending from the main body, and two lower abutting plates (34) extending upwardly from the flange. A pair of first locking tabs (342) is formed from outer sides of the lower abutting plate, and extends into corresponding cutouts (36) of the main body of an adjacent fin. Two upper abutting plates (34?) are formed from a top edge of the main body. A second locking tab (40) extends from an outer side of each upper abutting plate, and into a corresponding notch (38) of the main body of the adjacent fin. Then, the first and second locking tabs are bent inwardly to abut against the main body of the adjacent fin. Thus, the fins are firmly combined together.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: February 7, 2006
    Assignee: Hon Hai Precision Inc. Co., Ltd.
    Inventors: Aimin Huang, Yeu-Lih Lin
  • Patent number: 6992382
    Abstract: A method and apparatus for cooling an electronics chip with a cooling plate having integrated micro channels and manifold/plenum made in separate single-crystal silicon or low-cost polycrystalline silicon. Forming the microchannels in the cooling plate is more economical than forming the microchannels directly into the back of the chip being cooled. In some embodiments, the microchannels are high-aspect-ratio grooves formed (e.g., by etching) into a polycrystalline silicon cooling base, which is then attached to a cover (to contain the cooling fluid in the grooves) and to the back of the chip.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: January 31, 2006
    Assignee: Intel Corporation
    Inventors: Gregory M. Chrysler, Ravi Prasher
  • Patent number: 6979895
    Abstract: A semiconductor package comprising multiple stacked substrates having flip-chips attached to the substrates with chip-on-board assembly techniques to achieve dense packaging. The substrates are preferably stacked atop one another by electric connections which are column-like structures. The electric connections achieve electric communication between the stacked substrates, must be of sufficient height to give clearance for the components mounted on the substrates, and should preferably be sufficiently strong enough to give support between the stacked substrates.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: December 27, 2005
    Assignee: Micron Technology, Inc.
    Inventors: Salman Akram, Jerry M. Brooks
  • Patent number: 6975511
    Abstract: A ruggedized electronics sub-system module is disclosed. The ruggedized electronics sub-system module includes a ruggedized housing and an electronic device supported by the housing. The ruggedized electronics sub-system module also includes an electrical connector coupled to the electronic device and supported by the housing. The ruggedized electronics sub-system module further includes a plurality of ruggedized cooling pins extending from the housing. The plurality of pins are spaced so as to allow for natural convective currents or forced air to be used for cooling the electronic device.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: December 13, 2005
    Assignee: Rockwell Collins
    Inventors: Steve I. Lebo, Scott J. Sellner
  • Patent number: 6967843
    Abstract: Disclosed is an electronic board comprising a plurality of individual devices, each device having a plurality of connectors, the connectors mated to receptacles on the board, and a heat dissipating cover connected to the board and forming a cavity incarcerating the plurality of devices, the cover thermally contacting a plurality of the individual devices, the cover having a dimensional pattern such that its outer surface area is greater than its planar area.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: November 22, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Brandon A. Rubenstein, Bradley E. Clements
  • Patent number: 6966357
    Abstract: The “venturi fan” comprises a series of “half-venturi” shaped profiles incorporated into the periphery of a cylindrical fan, for use with a cylindrical heat sink. In one embodiment, the half-venturis are open, in another the half-venturis are enclosed so that the outer surface of the fan is smooth so that it is not a hazard to intruding fingers and the like. A leading edge deflector keeps hot compressed air in front of the venturi out of the heat sink fins.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: November 22, 2005
    Inventor: Edward Herbert
  • Patent number: 6967845
    Abstract: An integrated heat dissipating device has a heat sink, a first set of fins, a second set of fins and at least one heat pipe. The heat sink has a thermal conductive block embedded therein and a through hole exposing the thermal conductive block from a top surface of the heat sink. The first set of fins has a plurality of horizontally extending fins stacked with each other along a vertical direction over the heat sink. The second set of fins is integrated by a plurality of vertically extending fins arranged in a curved shape between the heat sink and the first set of fins. The heat pipe has a vertical extension across the first set of fins and a horizontal extension underneath a bottom of the first set of fins. The horizontal extension is inserted into the through hole in contact with the thermal conductive block.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: November 22, 2005
    Assignee: Cpumate Inc.
    Inventors: Tsai Liang Chiang, Takashi Wu
  • Patent number: 6958915
    Abstract: A heat dissipating device includes a retention module (20) around an electronic component (15), a heat sink (30) attached to the retention module, and a fan (90). The heat sink includes a plurality of fins (62, 64, 66, 68) and spacers (52) interleaved between the fins, two heat pipes (80) sequentially extending through lower portions of the fins, the spacers and upper portions of the fins to bond the fins and the spacers together. Each spacer includes a flat bottom face for contacting the electronic component, and an arcuate top face. The fins includes two outer fins, and a plurality of inner fins each defining a cutout (62a, 64a) cooperatively defining a chamber between the outer fins. The chamber and the arcuate spacers facilitate cooling air from the fan to blow to opposite sides of the heat sink thereby improving heat dissipation efficiency of the heat sink.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: October 25, 2005
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Yaxiong Wang, Chung-Yuan Huang, Shun Chi Dong
  • Patent number: 6948555
    Abstract: Embodiments of the present invention recite a heat dissipating system. In one embodiment, a heatsink comprising a plurality of cooling elements substantially encases a fan assembly disposed therein. When in operation, at least a portion of intake air for the fan assembly is caused to traverse the plurality of cooling elements prior to being exhausted from the fan assembly.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: September 27, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Philip Garcia
  • Patent number: 6947283
    Abstract: Apparatus and methods for secure attachment of a heat sink to its respective retention clip as well as attachment to an electronic device are presented. One embodiment of a retention clip retention apparatus consists of a protruding hip depending from a side of a heat sink protrusion adapted to capture the retention clip between the hip and the heat sink body. One embodiment of a method for forming the hip consists of using a tool to deform the heat sink protrusion. One embodiment of heat sink lateral retention apparatus consists of one or more split bobbins adapted to attach to the retention clip to prevent lateral motion of the heat sink with respect to the clip.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: September 20, 2005
    Assignee: Intel Corporation
    Inventors: George Hsieh, George R. Anderson, Cheryl M. Floyde
  • Patent number: 6927979
    Abstract: A heat-emitting element cooling apparatus that can improve a cooling effect on a heat-emitting element without increasing its size is provided. A heat sink is so constructed that all or part of radiation fins are located outside the contour of a base as seen from a side on which an axial flow fan unit is mounted. Then, the axial flow fan unit is so constructed as to discharge air along the portions of the radiation fin located outside the contour of the base.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: August 9, 2005
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Michinori Watanabe, Toshiki Ogawara, Haruhisa Maruyama, Masayuki Iijima
  • Patent number: 6913069
    Abstract: Described are devices for cooling a component, and methods thereof. The device includes a base that can be coupled to the component so that heat is transferred from the component to the base. The device also includes fins coupled to the base. The fins are arranged to funnel air from an air intake end of the device toward a location on the base.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: July 5, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Stephan Karl Barsun, Andrew Harvey Barr, Robert William Dobbs
  • Patent number: 6912128
    Abstract: A thermo-electro sub-assembly comprises a gas supply, a first duct, a first heatsink adjacent a first device, a second duct, and a second heat sink adjacent a second device. The gas supply may be realized as a fan, a blower, or a compressed gas source. The first duct provides a passageway for delivering pressurized gas from the gas supply to the first heat sink. The duct may include a plurality of vanes for reducing the turbulence and air boundary separation within the duct. The first heatsink is in thermal communication with a first heat-producing device such as a microprocessor. In a preferred embodiment the heatsink comprises an axial shaped folded fin heatsink. The second duct is used to provide a pathway for the air leaving the first heatsink and delivers the air to the second heatsink. The second duct may also include a plurality of vanes for reducing turbulence and boundary flow separation within the second duct.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: June 28, 2005
    Assignee: Celestica International Inc.
    Inventors: John Bird, Ralph I. Larson, Lyne Doré North, Paul Bussiere, Amy Allen
  • Patent number: 6909607
    Abstract: A thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. Power electronic circuits are thermally matched, such as between component layers and between the circuits and the support. The support may form a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: June 21, 2005
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Lawrence D. Radosevich, Daniel G. Kannenberg, Steven C. Kaishian, Bruce C. Beihoff
  • Patent number: 6906922
    Abstract: An integrated heat-dissipating module includes a heat-dissipating device substantially in contact with a main heat-generating source on a motherboard, a casing capping over the main heat-generating source and substantially in contact with sub heat-generating sources installed around the main heat-generating source, and a heat-dissipating fan installed on a first vent of the casing. The heat produced by the main heat-generating source is transmitted to the air inside the casing via the heat-dissipating device. Then, the hot airflow concentrated within the casing is expelled from a second vent of the casing by the heat-dissipating fan. The casing is made of a high heat conducting material and has a plurality of external heat-dissipating fins extending outward from an outer surface of the casing for quickly transmitting the heat generated by the sub heat-generating sources to the outside. Heat produced by the main heat-generating source and the sub heat-generating sources is dissipated simultaneously.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: June 14, 2005
    Assignee: Micro-Star Int'l Co., Ltd.
    Inventors: Tsung-Hsi Yu, Hung Chang
  • Patent number: 6901993
    Abstract: A heat sink assembly (20) includes a number of parallel first fins (40) and a number of parallel second fins (60) each having a main body (44, 64). A number of latch slots (46) is defined in the main body of each first fin. A number of latches (66) extends from the main body of each second fin in opposite directions. The first fins and the second fins are assembled together in interleaved fashion, so that the latches of each second fin engage in the latch slots of two adjacent first fins respectively.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: June 7, 2005
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Hsieh Kun Lee, WanLin Xia, HeBen Liu
  • Patent number: 6903928
    Abstract: An integrated crossflow cooler for electronic components comprises a heatsink with at least two openings, a crossflow blower and an electric drive with a stator and a magnetized rotor. The heatsink comprises a base and heat exchanging means; the base provides thermal contact with the electronic component and the heat exchanging means. The crossflow blower hydraulically connected to one of the openings and comprises a casing rigidly built-in to the heatsink and a drum type impeller comprises magnetic means and serves as a magnetized rotor of the electric drive. The stator made as printed circuit board and rigidly built-in to the casing. The integrated crossflow cooler comprises two types of electric drives—when the magnetic means magnetized in the direction parallel to the axis of rotation and when the magnetic means magnetized in the direction perpendicular to the axis of rotation.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: June 7, 2005
    Assignee: Rotys Inc.
    Inventors: Edward Lopatinsky, Saveliy Rosenfeld, Lev Fedoseyev, Daniel Schaefer
  • Patent number: 6898082
    Abstract: A heat transfer structure includes a heat transfer module having a plurality of heat transfer members in the duct chamber with the density increased in the direction of the flow of the coolant and having a greatest density adjacent to the position of a heat source attached in thermal contact with the heat transfer module. The profile of the duct chamber is adjusted to the position of the heat source to increase the velocity of coolant directly under the heat source and to partially or completely block the coolant flow to the areas which do not need to be temperature adjusted. The heat transfer members may be formed as pin fins fabricated from springs compressed to a predetermined density in a direction perpendicular to the longitudinal axis of the spring (and/or in parallel to the longitudinal axis of the heat transfer module).
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: May 24, 2005
    Inventors: Serguei V. Dessiatoun, Igor Ivakhnenko
  • Patent number: 6894900
    Abstract: A heat sink includes at least one heat pipe attached to a base having a substantially flat region for interfacing with an electronic component. Additionally, the heat sink comprises fins attached to the base and at least one heat pipe. The fins and the base may be integral with or attached to each other. Such a heat sink can dissipate heat from one or more electronic components more efficiently as the heat pipe coupled with the fins attached to the base provide alternate heat transfer paths for heat generated by electronic components.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: May 17, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Christopher G. Malone
  • Patent number: 6894899
    Abstract: An improved cooling system designed for electronic components such as a central processing unit of a computer with an integrated unit comprising a radiation housing, an absorption housing having a coolant store unit, an absorption layer between the coolant store unit and the electronic component and a circulation generation unit which causes a coolant to flow from the coolant store unit to the absorption layer and back to the coolant store unit through a conduit.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: May 17, 2005
    Assignee: Hong Kong Cheung Tat Electrical Co. Ltd.
    Inventors: Bo Jiu Wu, Jia Ju Zhang, Zhong Ming Wu
  • Patent number: 6891725
    Abstract: A modular motor controller family comprises a housing. Solid state switches are selected from one of plural switch sizes for controlling a desired voltage and current range. The switches are mounted in the housing for connection between an AC line and motor terminals for controlling application of AC power to the motor. A logic circuit board is mounted in the housing including logic circuitry for commanding operation of the solid state switches independent of the selected switch size. An interface circuit board selected from one of plural configurations is mounted in the housing and includes interface circuitry connected between the logic circuitry and the solid state switches. The interface circuitry is selected to interface with the selected switch size according to the desired voltage and current range.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: May 10, 2005
    Assignee: Siemens Energy & Automation, Inc.
    Inventor: James Derksen
  • Patent number: 6883593
    Abstract: A heat sink for free convection cooling in horizontal applications is provided. Specifically, the heat sink includes a plurality of spaced apart cooling fins, which are supported by an angled base. The cooling fins are transversely attached to the base and extend in a substantially vertical direction. In addition, the cooling fins extend beyond an outer edge of the base so that air can flow horizontally beneath the base and then vertically through the spaced apart cooling fins.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: April 26, 2005
    Assignee: International Business Machines Corporation
    Inventors: Eric Arthur Johnson, Randall Joseph Stutzman
  • Patent number: 6882532
    Abstract: A double-winged radiator for central processing unit (CPU) includes a heat-transfer block mounted on a top of a CPU that produces a large amount of heat during an operation thereof, and two sets of first radiator fins fixed to two outer ends of at least one heat-transfer tube that is seated on a top of the heat-transfer block. The heat produced by the CPU and transferred to the heat-transfer block is further transferred via the heat-transfer tube to the two sets of first radiator fins that provide large radiating area and high radiating efficiency to allow quick dissipation of heat therefrom. A locating member may be mounted on and between the two sets of first radiator fins to protect the latter from deformation under pressure. One set of second radiator fins may be mounted between the two sets of first radiator fins to provide increased radiating area and efficiency.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: April 19, 2005
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Chih-peng Chen, Hsin-cheng Lin
  • Patent number: 6879487
    Abstract: A fan-securing device secures a fan to a heat transfer device that allows for the rapid removal of the fan without disturbing the remainder of the heat transfer device. The fan-securing device includes a base, a fastener for securing the body base to the heat transfer device, and compression tabs for securing the fan to the base.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: April 12, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Glenn C. Simon, Vella Srinivas, Angela Minichiello, Brad Clements, Christopher Paul Lucas
  • Patent number: 6870735
    Abstract: A heat sink is for an element to be cooled has a thermally conductive base and a plurality of thermally conductive pins or fins extending substantially perpendicular from the base, said pins or fins being arranged in a predetermined pattern. The pins at least partially frame thermally conductive projections extending substantially perpendicular from said base which forming a discernable logo having an upper surface and sides for providing plural cooling surfaces. In this instance the 3-D logo performs cooling of the components within a package.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: March 22, 2005
    Assignee: JDS Uniphase Corporation
    Inventors: Ronald R. Genova, Duane S. Stackhouse
  • Patent number: 6867974
    Abstract: A heat-dissipating device includes a hollow heat-transfer member adapted to be disposed on a heat-generating source and confining a vacuum sealed chamber therein, an amount of coolant medium contained in the vacuum sealed chamber for heat exchange, and a plurality of heat-dissipating fins provided on the heat-transfer member. The vacuum sealed chamber has a wider section, a narrower section, and a neck section between the wider and narrower sections. The neck section hampers movement of the coolant medium from the wider section to the narrower section when the heat-transfer member is tilted from an upright position, where the narrower section is disposed above the wider section.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: March 15, 2005
    Inventor: Chin-Kuang Luo
  • Patent number: 6867971
    Abstract: A heat dissipation apparatus is described. The heat dissipation apparatus reduces noise of a notebook computer. The apparatus comprises a heat sink, at least one heat pipe, at least one heat column, a plurality of heat exhausting fins, and at least one fan device. The heat sink catches the heat energy on the central processing unit of the notebook computer. The heat energy is transferred from the heat sink to the heat pipes, and then to the heat columns. The heat columns delivers the heat energy to the heat exhausting fins parallel to each other in a vertical direction and the fan device blows the heat out of the computer. The fan device has an outlet angle aligned with an inlet angle of the heat exhausting fins, and therefore the noise of the computer is reduced. In particular, a heat plate is coupled between the heat columns and the heat pipes. Hence, the heat can be more efficiently delivered to the heat exhausting fins directly from sidewalls of the heat exhausting fins and by way of the columns.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: March 15, 2005
    Assignee: Quanta Computer, Inc.
    Inventor: Chih-Hsi Lai
  • Patent number: 6849940
    Abstract: An integrated circuit package includes a first or active substrate and a second or passive substrate. The active substrate includes at least one circuit that generates heat during circuit operation. The passive substrate does not include any heat-generating circuits, although the passive substrate may include passive, disabled or dormant circuitry. The two substrates are preferably fabricated of semiconductor material and have substantially equal coefficients of thermal expansion. The passive substrate is thermally coupled to the active substrate preferably using a thin layer of adhesive, such as an epoxy. The passive substrate serves to thermally conduct the heat generated by the circuits of the active substrate away from the active substrate. An internal metallic heat sink may be optionally thermally coupled to the passive substrate to further aid in the transfer of heat away from the active substrate.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: February 1, 2005
    Assignee: ATI Technologies, Inc.
    Inventors: Vincent K. Chan, Samuel W. Ho
  • Patent number: 6847525
    Abstract: A heat sink is provided for transferring heat to air flowing from an upstream path. The heat sink includes a support portion and a plurality of fins extending from the support portion. The fins and the support portion together define channels at least one of which has a portion angled with respect to the upstream path of flowing air. Redirection of the flowing air from the upstream path to at least one downstream path is thereby facilitated.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: January 25, 2005
    Assignee: Unisys Corporation
    Inventors: Grant M. Smith, Mark W. Wessel
  • Patent number: 6847524
    Abstract: An electronic apparatus comprises a housing containing a heat-generating component, and a cooling unit. The cooling unit includes a heat sink thermally connected to the heat-generating component, a first air passage for guiding air outside the housing to the heat sink and guiding air heated by heat exchange with the heat sink to the outside of the housing, and a second air passage for guiding air within the housing to the outside of the housing.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: January 25, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kentaro Tomioka, Hiroshi Nakamura
  • Patent number: 6845010
    Abstract: An enhanced heat dissipation device to extract heat from an integrated circuit device includes a thermally conductive core having upper and lower outer surface areas. The device further includes a first array of radially extending pin fin structures. The first array is thermally coupled to the upper surface area such that a cooling medium introduced around the core and the first array creates an omni-directional flow around the first array and the core to enhance heat dissipation from the integrated circuit device. The core including the first array and the lower surface area are of sufficient size to allow components on a motherboard to encroach onto the integrated circuit device when the heat dissipation device is mounted onto the integrated circuit device.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: January 18, 2005
    Assignee: Intel Corporation
    Inventor: Seri Lee
  • Patent number: 6840307
    Abstract: Heat sinks are provided that achieve very high convective heat transfer surface per unit volume. These heat sinks comprise a spreader plate, at least two fins and at least one porous reticulated foam block that fills the space between the fins.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: January 11, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Gary Lynn Eesley, Donald T. Morelli, Mohinder Singh Bhatti
  • Patent number: 6839232
    Abstract: In a heat dissipating internally fan-less housing (20) for electronic circuits and components (28), the housing has an assembly of two container (10) parts comprising heat-sink fins (12). Each part has a substantially diagonal (14) shaped profile. In the housing, a circuit-board (29) is mounted along the diagonal (14) profile thus providing that the long-side ends of the circuit-board (29) on each side of the board are covered by a greater mass of heat-sink fins (12) compared to a horizontally mounted circuit board for a better cooling of components.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: January 4, 2005
    Assignee: PacketFront Sweden AB
    Inventors: Anders Elo, Jörgen Eriksson, Niclas Sonesson
  • Publication number: 20040264134
    Abstract: A method and device for thermal conduction is provided. Methods of forming heatsinks are provided that include advantages such as the ability to produce intricate detailed features that other manufacturing methods are not capable of. Other advantages provided include a reduction in process time and cost due to the absence of a need to machine components after initial fabrication. Embodiments of heatsinks that are formed using methods provided include features such as sub-fins and other detailed features that cannot be formed using other manufacturing processes. Further embodiments of heatsinks that are formed using methods provided include materials that cannot be formed using other manufacturing processes.
    Type: Application
    Filed: June 30, 2003
    Publication date: December 30, 2004
    Inventors: Kai Yong Cheng, Chew Keat Lim, Teik Hua Ng
  • Publication number: 20040246662
    Abstract: A heat sink with fins has a flat, planar surface soldered to a metallic layer at one surface of a flat, planar ceramic layer. The opposite surface of the ceramic layer has a metallic pattern including base areas for high power, high frequency load switching MOSFETs. Lead frames are soldered between the lead frame base areas and base contact areas of the MOSFET packages. Thermal conduction between the MOSFETs and the heat sink dissipates the heat from switching losses. A gate drive circuit board for the load switching system is supported spaced from the and is separated from the MOSFETs by a thermally blocking air gap, with the component side of the gate drive circuit board facing away from the MOSFETs. Spade terminals of the lead frames extend through openings in the gate drive circuit board to route high power signals independently of the gate driver circuit board.
    Type: Application
    Filed: June 6, 2003
    Publication date: December 9, 2004
    Applicant: Electronic Theatre Controls, Inc.
    Inventors: John P. Thurk, Eric W. Suomi, Bradley J. Brunker
  • Patent number: 6827130
    Abstract: A heat removal system includes a heatsink assembly having a base and a plurality of heat conducting folded fin members projecting from a first surface of the base and arranged to leave an open space on the first surface of the base. At least one thermally conductive slug projects from the center of the folded fm members and the folded fin members are thermally coupled to the slug. A gas circulating system is disposed over the slug and fin members projecting from the first surface of the base. The sidewall of a fin may be provided with at least one aperture. The top surface of the fin is closed, thereby permitting the fin to operate as a plenum of sorts. The bottom of the troughs may also be closed. The fins/troughs act as a plenum. A method of producing the folded fin heatsink member is also described.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: December 7, 2004
    Assignee: Heat Technology, Inc.
    Inventor: Ralph I. Larson
  • Patent number: 6826050
    Abstract: A heat sink includes a heat receiving part for receiving heat from the outside, a first radiating part, connected to said heat receiving part, which forms a first air channel, and radiates the heat from said heat receiving part using air that passes through the first air channel, and a second radiating part, located apart from said heat receiving part and connected to said first radiating part, said second radiating part forming a second air channel which the air that has passed the first air channel enters, the second air channel being narrower than the first air channel, said second radiating part radiating the heat from said first radiating part.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: November 30, 2004
    Assignee: Fujitsu Limited
    Inventor: Masumi Suzuki
  • Patent number: 6826052
    Abstract: A heat sink retaining assembly includes a retaining module (1) and a pair of clips (3). Two retaining portions (12) are respectively formed on each of two opposite sidewalls (17′) of the retaining module. Bifurcated block portions (13) are integrally formed on interior faces of each of four sidewalls (17, 17′) of the retaining module. A gap (15) is defined between each block portion and its corresponding sidewall, and each gap receives a resilient member (14). Each resilient member includes a guide portion (19) and a pressing portion (18). A heat sink (2) is received in the retaining module via the guide portions. The heat sink is restricted by the pressing portions from sliding in lateral directions relative to the retaining module. The clips are engaged with the retaining portions. The heat sink is thereby securely fastened to the retaining module and to an associated CPU package.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: November 30, 2004
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Hao-Yun Ma
  • Patent number: 6822862
    Abstract: A method for computer host heat dissipation, a heat-dissipating device being mounted on a CPU utilized for partially or wholly conducting heat generated by the CPU to the heat-dissipating device, a fan being mounted on a north bridge chipset utilized for partially or wholly dissipating heat generated by said north bridge chipset, the fan having an air outlet utilized for blowing air flow towards the heat-dissipating device in an air-blowing direction, characterized in that a channeling device is disposed at the periphery of both the fan and the heat-dissipating device; the channeling device is utilized for directing an air-channeling direction, with such air-channeling direction being substantially parallel to the air-blowing direction by the fan, and the air-blowing direction by the fan is in the air-channeling direction, and the heat-dissipating device is in the air-blowing direction.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: November 23, 2004
    Assignee: Saint Song Corp.
    Inventor: Lee Rong-Yao
  • Patent number: 6819564
    Abstract: A heat dissipation module. The heat dissipation module comprises a cover, a fan, a base and a plurality of fin assemblies. The fan is disposed on the cover. The base is disposed underneath the fan and has a protruding portion. The protruding portion has two slant surfaces and a top end. The protruding portion gradually tapers toward the fan. The plurality of fin assemblies are disposed on the slant surfaces of the protruding portion of the base.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: November 16, 2004
    Assignee: Asustek Computer Inc.
    Inventors: Chao-Tsai Chung, Cheng-Chen Cheng, Po-Yao Lin
  • Patent number: 6815814
    Abstract: An objective of the present invention is to provide a thermoelectric module which can achieve high heat release and heat absorption efficiencies and which can obviate any thermal stress-caused damages. A thermoelectric module (1) in an embodiment has a predetermined number of thermoelectric semiconductor elements P and N which are arranged in a flat plate configuration. Each of the thermoelectric semiconductor elements P and N has on one face thereof a one-side electrode (2) and has on the other face thereof an other-side electrode (3), thereby allowing all of the thermoelectric semiconductor elements P and N to be connected in series. The one-side electrodes (2, 2 . . . ) have heat release/heat absorption fins (heat transfer fins) (2F, 2F . . . ) and the other-side electrodes (3, 3 . . . ) have heat release/heat absorption fins (heat transfer fins) (3F, 3F . . . ).
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: November 9, 2004
    Assignee: Komatsu Ltd.
    Inventors: Rencai Chu, Kanichi Kadotani, Toshinobu Tanimura
  • Patent number: 6816373
    Abstract: A heat dissipation device for dissipating heat from an electronic package (80) includes a heat sink (10) and a fan (30). The heat sink includes a base (12) and a plurality of fins (14). The base has a first surface (122) in thermal contact with the electronic package and a pair of sloped heat dissipation surfaces (126). The fins are perpendicularly attached on the heat dissipation surfaces. The fan is supported on the heat sink. During operation of the heat dissipation device, the cooling air is drawn into the heat sink by the fan and exits the heat sink along the heat dissipation surfaces.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: November 9, 2004
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Hsieh Kun Lee, Chun-Chi Chen, Chin Hsien Lan, Meng Fu
  • Patent number: 6816374
    Abstract: A high efficiency two-part heat sink and air cooler apparatus or system for heat generating components, such as CPUs (central processing units) or the like electronic components. Moreover, there is also provided to a method of providing a high-efficiency heat sink and air cooling for the cooling of electronic components such as CPU units for processors, computers and diverse heat-generating devices.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: November 9, 2004
    Assignee: International Business Machines Corporation
    Inventors: Janak G. Patel, Jerzy M. Zalesinski
  • Patent number: 6808013
    Abstract: A heat dissipation device (1) includes a heat sink (12), a number of first pipes (14), a pair of second pipes (16), and working liquid. The heat sink includes a base (122), and a number of fins (124) attached on the base. A number of parallel first holes (126) is defined through the base. A second hole (128) is defined through a middle of the base in a longitudinal direction that is perpendicular to the first holes. The first and second pipes and the first and second holes thus cooperatively form a closed circulatory route. The working liquid is received in the circulatory route. In operations the working liquid absorbs heat at the base and circulates through the circulatory route. The first and second pipes dissipate said heat to airspace beyond the fins. Accordingly, the first and second pipes increase a heat dissipation area of the heat dissipation device.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: October 26, 2004
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Cheng-Tien Lai, Tsung-Lung Lee, Shenghua Wang