Abstract: A heat dissipation device includes a heat-absorbing member having two arched concave walls formed at opposite sides thereof, and a plurality of fins extending outwardly and slantwise from each of the two arched concave walls of the heat-absorbing member toward a middle between a front and a rear of the heat dissipation device.

Abstract: A fastener assembly for securing a heat dissipation device to a CPU mounted on a printed circuit board, includes a sleeve, a bolt, and a coil spring. The sleeve includes a hollow body, a top head and a pair of lower resilient flat extensions. The resilient flat extension has a barb projecting outwards therefrom and is deformable radially. The bolt includes a shaft, a joining part at an end thereof and a threaded part formed at an opposite end thereof. The shaft is received in the hollow body of the sleeve with the joining part fastened to the hollow body, whilst the threaded part projects out of the hollow body. The coil spring surrounds the sleeve and is held between the head of the sleeve and the barbs of the sleeve; the coil spring is deformable axially along a length of the sleeve.

Abstract: A heat dissipation device includes a fin set, a sinuous heat pipe transferring heat to different parts of the fin set, and a base thermally contacting the heat pipe. The heat pipe has a middle U-shaped portion and two L-shaped portions at two sides of the U-shaped portion, respectively. The base is for contacting with a heat generating electronic device and transferring heat from the electronic device to the heat pipe and the fin set. The fin set defines a passageway in a middle of thereof. The U-shaped portion of the heat pipe is received in the passageway of the fin set and thermally engages with the fin set.

Abstract: A clip includes a body, an actuating member, a first hook plate and a second hook plate. The body includes a supporting portion and a pair of spaced arms extending from opposite sides of the supporting portion. The actuating member includes a cam supported on the supporting portion. The first hook plate is detachably coupled to a distal end of the arms of the body. The second hook plate extends through the supporting portion and is pivotally coupled to the cam of the actuating member. The actuating member is turnable relative to the second hook plate between a locked position and an unlocked position.

Abstract: A heat dissipation device is for contacting with a heat generating electronic device to remove heat from the electronic device. The heat dissipation device includes a base for thermally engaging with the electronic device and a plurality of fins arranged on a face of the base. A first heat pipe is located between the base and the fins, and is sinuously positioned on the face of the base. The first heat pipe has a first section located at a central portion of the base and a plurality of second sections located at lateral portions of the base. At least a second heat pipe has a first section thermally positioned to the base, and a second section extending remotely from the base and thermally engaging with the fins.

Abstract: A clip includes a body having a first end and a second end. A connecting member extends through the first end of the body. A hook plate is attached to a bottom of the connecting member and an actuating member is pivotally coupled to an upper end of the connecting member. The actuating member is pivotable relative to the hook plate in a first direction so that the actuating member is turnable relative to the hook plate between a locked position and an unlocked position. Furthermore, the actuating member is turnable about an axis of the connecting member in a second direction different from the first direction.

Abstract: A heat dissipation device includes a fin assembly including a plurality of fins and a heat conductive member. Each individual fin includes a main body with one through hole and a sleeve installed in the through hole of the main body. The sleeve has a hole defined therethrough. The heat conductive member has higher heat conductivity than the main bodies of the fins, and is installed into the through hole of the each individual fin via extension through the hole of the sleeve. The main body and the sleeve of the each individual fin are made of different materials so that the sleeve serves as a transition component for facilitating soldering the each individual fin on the heat conductive member and heat conduction from the heat conductive member to the main body of the each individual fin.

Abstract: A heat dissipation device includes a heat conducting base, a heat sink on the base and two heat pipes thermally contacting with the heat sink and the base. The heat sink is made of metal extrusion and includes a heat conducting cylinder at a periphery of the heat sink and a plurality of fins extending from and surrounded by the cylinder. The cylinder includes four interconnected sides. The fins of the same side are parallel to each other. The two heat pipes thermally surround the cylinder of the heat sink and wholly contact the heat sink.

Abstract: A heat sink for dissipating heat of an electronic device comprises a base, a first fin group comprising a plurality of fins stacked together, a second fin group comprising a plurality of fins and overlapping the first fin group, and a sinuous heat pipe attached to the base. The first and second fin groups are respectively engaged with the heat pipe twice at different locations of the first and second fin groups.

Abstract: A heat dissipation device includes a primary heat sink (10) contacting a central processing unit and a secondary heat sink (20) attached on heat-generating electronic components adjacent the central processing unit. The primary heat sink includes a base (12) and a heat-dissipation portion (14) disposed on a middle of the base. The secondary heat sink includes a substrate (22) and a plurality of fin assemblies (24) arranged on the substrate. The base is laid on the substrate with the fin assemblies arranged around the heat-dissipation portion. The primary heat sink is partly superposed on the secondary heat sink with a compact structure. The heat-dissipation portion can simultaneously dissipate heat from the central processing unit and its adjacent heat-generating electronic components.

Abstract: A memory module assembly includes a memory card having a circuit board and a plurality of electronic components mounted on the circuit board. A pair of shells sandwich the memory card therebetween. A first pair of clips sandwich the memory card and the pair of shells therebetween. A fastener extends through the first pair of clips, the pair of shells and the circuit board and holds the first pair of clips toward each other. The first pair of clips each has a pressing portion pressing a corresponding shell of the pair of shells toward the memory card. A second pair of clips each clamps the pair of shells toward the memory card. Thermal tapes thermally connect the electronic components and the shells.

Abstract: An input circuit (200) operating at a predetermined power supply voltage (VPW) can level shift a high voltage input signal (VINHV) from a higher voltage value to the lower power supply voltage (VPW) level. An input circuit (200) can include input transistors (206-0 and 206-1) having a source-follower configuration. A first input transistor (206-0) receives a high voltage input signal (VINHV) and a second input transistor (206-1) receives a reference voltage (VREF), which can both reach levels greater than power supply voltage (VPW). A compare circuit (204) can reduce duty cycle distortion to generate a lower voltage input signal (VINLV). Input circuit (200) can provide level shifting from LVTTL levels to low voltage CMOS levels without the need for multiple power supply voltages.

Abstract: A heat dissipation device includes a first base plate having a flat top surface, a plurality of flattened heat pipes, a fin assembly located above the heat pipes and a thermally conductive layer formed between the heat pipes and the fin assembly. The thermally conductive layer has a flat surface contacting with the heat pipes. The heat pipes are supported on the top surface of the first base plate. The first base plate has a flat bottom surface for engaging with an electronic package. Each heat pipe comprises an evaporating section and a condensing section bent from the evaporating section, and the evaporating sections of the heat pipes abut side by side against each other.

Abstract: A heat dissipation device includes a heat sink and a back plate assembly thermally independent from the sink. The back plate assembly includes a body facing a bottom surface of the heat sink and a heat-dissipating member thermal connecting to the body. The heat sink is used for absorbing heat generated by a heat-generating electronic component from a top side thereof. The back plate assembly is used for absorbing the heat generated by the heat-generating electronic component from a bottom side thereof. The heat sink and the back plate assembly are connected together by fixing members extending from the heat sink through a printed circuit board on which the electronic component is mounted to threadedly engage with the back plate assembly.

Abstract: A heat dissipation device includes a heat dissipation body and a heat conducting body thermally combined with the heat dissipation device. The heat dissipation body includes a central portion defining a through hole therein and a plurality of fin extending from a periphery of the central portion. Each of the fins branches a plurality of portions at an end thereof. The heat conducting body includes a column thermally fitted in the through hole of the central portion of the heat dissipation body. A cavity is defined between the column and the central portion of the heat dissipation body. The cavity contains a phase-changeable medium therein, which becomes vapor once the column absorbs heat from a heat-generating electronic device.

Abstract: A heat dissipation device includes a heat dissipation body and a heat conducting body thermally combined with the heat dissipation device. The heat dissipation body includes a central portion defining a through hole therein and a plurality of fin extending from a periphery of the central portion. Each of the fins branches a plurality of portions at an end thereof. The heat conducting body includes a column thermally fitted in the through hole of the central portion of the heat dissipation body. A cavity is defined between the column and the central portion of the heat dissipation body. The cavity contains a phase-changeable medium therein, which becomes vapor once the column absorbs heat from a heat-generating electronic device.

Abstract: A heat dissipation device (1) includes a heat sink (10), a fan (20), and a cooling member (30). The heat sink includes a base, a plurality of fins extending from the base and at least one heat pipe thermally connecting the base and the fins. The cooling member is provided with a fin assembly thereon and includes a cold surface attached to one side of the fins and a condensing portion of the at least one heat pipe to make the one side of the fins and the condensing portion have a lower temperature.

Abstract: A heat dissipating device includes a heat sink and a protecting device attached to the heat sink. The heat sink includes a plurality of individual fins in assembly. The protecting device is made from plastic. The protecting device includes a lath resting on the fins, and a plurality of ribs beneath the lath. The ribs are interposed between the fins.

Abstract: A heat dissipation device (1) includes a heat sink (10), a fan (20), and an air cooling member (30). Airflow produced by the fan is led to the heat sink after passing through the air cooling member. The air cooling member can lower the temperature of the airflow below an average temperature of an atmosphere surrounding the heat dissipation device.