Abstract: A heat dissipation device includes a base, a fin group mounted on a top of the base, a fan mounted on a top of the fin group, a hollow fan duct mounted on the fan and a thermoelectric cooler secured on the fan duct. The thermoelectric cooler includes a cooling module having the Peltier effect and extending through a sidewall of the fan duct, and a heat sink enclosed by the fan duct and thermally contacting with the cooling module. The cooling module has a cold surface located at an inner side of the fan duct, and the heat sink thermally contacts with the cold surface of the cooling module. An airflow generated by the fan first flows through the heat sink and then reaches the fin group via the fan.

Abstract: A heat dissipation device includes a heat sink having a plurality of fins defining a plurality of passageways therebetween. The passageways have an inlet and an outlet at front and rear sides of the heat sink. Two adjusting members are mounted at two lateral sides of the heat sink. A fan is located at the inlet of the passageways of the heat sink for providing airflow to the heat sink. A guiding member is positioned at the outlet of the passageways of the heat sink for guiding the airflow to electronic components around the heat dissipation device. The guiding member engages the adjusting members and can move vertically relative to adjusting members, thereby adjusting a height of the guiding member along a height of the heat sink.

Abstract: A clip is adapted for securing a heat sink on a printed circuit board (PCB). The clip includes a linking portion, an operating portion, a handle, and a pressing portion. The linking portion is located at a lateral side of the heat sink. The operating portion pivotally engages with the linking portion and the heat sink. The handle connects the operating portion. The pressing portion connects the linking portion. A fastener mounted on the PCB extends through the heat sink and the pressing portion. The pressing portion is slidable from a first position to a second position. When the pressing portion is in the second position the handle is operable to drive the operating portion to move upwardly and urge the pressing portion to move along the fastener until the pressing portion abuts against a top portion of the fastener and simultaneously presses the heat sink.

Abstract: A clip is adapted for securing a heat sink on a printed circuit board (PCB). The clip includes a linking portion, an operating portion, a handle, and a pressing portion. The linking portion is located at a lateral side of the heat sink. The operating portion pivotally engages with the linking portion and the heat sink. The handle connects the operating portion. The pressing portion connects the linking portion. A fastener mounted on the PCB extends through the heat sink and the pressing portion. The pressing portion is slidable from a first position to a second position. When the pressing portion is in the second position the handle is operable to drive the operating portion to move upwardly and urge the pressing portion to move along the fastener until the pressing portion abuts against a top portion of the fastener and simultaneously presses the heat sink.

Abstract: An LED lamp includes a lamp cover consisting of a plurality of sector-shaped connecting bodies, a plurality of fins attached to the lamp cover and a plurality of LED modules attached to the lamp cover and opposing the fins. A locking device is pivotably mounted to the lamp cover and comprises a supporting pole extending in the lamp cover, a plurality of branches pivotably mounted to the lamp cover and the supporting pole. The branches are movable along the supporting pole to be locked at a desired position, whereby an illumination angle of the LED modules of the lamp cover relative to the supporting pole is changeable via movement of the branches along the supporting pole of the locking device. Thus, an illumination area and an illumination intensity of the LED lamp are adjustable.

Abstract: A heat dissipation device includes a base for contacting an electronic device, a fin set thermally contacting the base, a first heat pipe and a second heat pipe connecting the base and the fin set. The fin set has a bottom larger than the base and an upper portion apart from the bottom thereof. The first heat pipe has a flat top face thermally contacting the bottom of the fin set, including a first transferring portion thermally engaging with the base and a second transferring portion extending from the first transferring portion and projecting beyond the base. The second heat pipe includes an evaporation portion thermally engaging with the base and a condensation portion extending from the evaporation portion and engaging with the upper portion of the fin set.

Abstract: A heat dissipation device includes a heat sink, a positioning member and a wire clip. The heat sink includes a base and a plurality of fins. Two of the fins each form a hook. The positioning member includes a seat and two positioning arms each forming two opposite fingers. A receiving groove is defined under the seat, and a positioning slot is defined through a central portion of the seat. The seat is laterally sandwiched between the two fins and vertically sandwiched between the base and the hooks. Each of the two fins is sandwiched between the two fingers. The wire clip includes a resisting portion forming a protrusion and two clipping arms. The resisting portion rests on the base and is received in the receiving groove. The protrusion is received in the positioning slot.

Abstract: A heat dissipation device for removing heat from an electronic component mounted on a printed circuit board, includes a heat sink having a bottom for in contact with the electronic component and a plurality of fasteners securing the heat sink onto the printed circuit board. Each fastener includes a first latching member, a second latching member rotatably connected to the first latching member and an operating member rotatably connected to the first latching member and having a pressing part engaging a curved portion defined on a top of the second latching member. The heat sink and the printed circuit board are located between the first and second latching members of each fastener. The operating member is rotated to force the first and the second latching members to rotate toward each other to closely clip the heat sink and printed circuit board together.

Abstract: A heat dissipation device includes a base for contacting an electronic device, a fin set located on the base and first, second heat pipes thermally engaged in the base. The first heat pipe comprises a first transferring portion and two second transferring portions extending from two opposite free ends of the first transferring portion. The second heat pipe has first and second transferring sections. The first transferring section of the second heat pipe is located adjacent to the first transferring portion of the first heat pipe and between the first transferring portion and one of the second transferring portions of the first heat pipe, and the second transferring section of the second heat pipe is located adjacent to the one of the second transferring portions of the first heat pipe.

Abstract: A heat dissipation device includes a base, a sleeve coupling with the base, and a fastener engaging with the base and the sleeve. The base defines a hole extending therethrough. The sleeve includes a first portion coupling with the hole of the base and a second portion extending from an end of the first portion. The second portion is located at a first side of the base. The fastener includes a body portion extending through the sleeve and the base, a head portion and a foot portion formed at two ends of the body portion, respectively. The head portion is located at the first side of the base. A spring member is compressed between the head portion and the second portion. A compressed length of the spring member is adjustable by adjusting a coupling length of the first portion with the hole of the base.

Abstract: A heat dissipation device used for removing heat from a plurality of memory module cards, includes a first bracket, a second bracket placed on the first bracket and a fin set arranged on the second bracket. The first bracket has a plurality of first sheets extending downwardly from a bottom thereof and defines a plurality of slots therein. The second bracket has a plurality of second sheets extending downwardly from a bottom thereof. The first sheets are respectively attached to sides of the memory module cards. The second sheets are respectively extended through the slots of the first bracket and attached to opposite sides of the memory module cards and opposite to the first sheets.

Abstract: A heat dissipation device for at least two heat-generating electronic components, includes a base for contacting with the heat-generating electronic components, a first fin set arranged on one part of the base, a second fin set arranged on another part of the base and at least a heat pipe sandwiched between the base and the first and second fin sets. The first fin set includes a plurality of fins defining a plurality of air passages therebetween. The second fin set includes a plurality of fins. Every two neighboring fins define therebetween an air passage communicating with a corresponding air passage of the first fin set. A channel which is parallel to and has a width larger than that of the air passages of the first and second fin sets is defined in a middle of the second fin set.

Abstract: A heat dissipation device includes a heat sink having a plurality of fins defining a plurality of passageways therebetween. The passageways have an inlet and an outlet at front and rear sides of the heat sink. Two adjusting members are mounted at two lateral sides of the heat sink. A fan is located at the inlet of the passageways of the heat sink for providing airflow to the heat sink. A guiding member is positioned at the outlet of the passageways of the heat sink for guiding the airflow to electronic components around the heat dissipation device. The guiding member engages the adjusting members and can move vertically relative to adjusting members, thereby adjusting a height of the guiding member along a height of the heat sink.

Abstract: A heat dissipation device includes a base, a fin group mounted on a top of the base, a fan mounted on a top of the fin group, a hollow fan duct mounted on the fan and a thermoelectric cooler secured on the fan duct. The thermoelectric cooler includes a cooling module having the Peltier effect and extending through a sidewall of the fan duct, and a heat sink enclosed by the fan duct and thermally contacting with the cooling module. The cooling module has a cold surface located at an inner side of the fan duct, and the heat sink thermally contacts with the cold surface of the cooling module. An airflow generated by the fan first flows through the heat sink and then reaches the fin group via the fan.

Abstract: An LED lamp includes a lamp cover consisting of a plurality of sector-shaped connecting bodies, a plurality of fins attached to the lamp cover and a plurality of LED modules attached to the lamp cover and opposing the fins. A locking device is pivotably mounted to the lamp cover and comprises a supporting pole extending in the lamp cover, a plurality of branches pivotably mounted to the lamp cover and the supporting pole. The branches are movable along the supporting pole to be locked at a desired position, whereby an illumination angle of the LED modules of the lamp cover relative to the supporting pole is changeable via movement of the branches along the supporting pole of the locking device. Thus, an illumination area and an illumination intensity of the LED lamp are adjustable.

Abstract: A heat dissipation device includes a base (10) for thermally engaging with an electronic device and a plurality of fins (320) arranged on the base (10). A heat pipe (52) thermally connects the fins (320) and the base (10) for transferring heat from the base (10) to the fins (320). The heat pipe (52) comprises an evaporation section (521) sandwiched between the base (10) and the fins (320), two condensation sections (525, 526) parallel to the evaporation section (521) and thermally engaging with the fins (320), and two connecting sections (527, 528) interconnecting corresponding condensation sections (525, 526) and the evaporation section (521). The connecting sections (527, 528) form an included angle therebetween. The condensation sections (525, 526) are spaced from and extend toward each other.

Abstract: A heat dissipation device includes a base for contacting with an electronic device, a fin set thermally contacting the base, a first heat pipe and a second heat pipe connecting the base and the fin set. The fin set has a bottom larger than the base and an upper portion apart from the bottom thereof. The first heat pipe has a flat top face thermally contacting the bottom of the fin set, comprising a first transferring portion thermally engaging with the base, and a second transferring portion extending from the first transferring portion and projecting beyond the base. The second heat pipe comprises an evaporation portion thermally engaging with the base, and a condensation portion extending from the evaporation portion and engaging with the upper portion of the fin set.

Abstract: A heat dissipation device includes a base for contacting an electronic device, a fin set located on the base and first, second heat pipes thermally engaged in the base. The first heat pipe comprises a first transferring portion and two second transferring portions extending from two opposite free ends of the first transferring portion. The second heat pipe has first and second transferring sections. The first transferring section of the second heat pipe is located adjacent to the first transferring portion of the first heat pipe and between the first transferring portion and one of the second transferring portions of the first heat pipe, and the second transferring section of the second heat pipe is located adjacent to the one of the second transferring portions of the first heat pipe.

Abstract: A heat dissipation device for at least two heat-generating electronic components, includes a base for contacting with the heat-generating electronic components, a first fin set arranged on one part of the base, a second fin set arranged on another part of the base and at least a heat pipe sandwiched between the base and the first and second fin sets. The first fin set includes a plurality of fins defining a plurality of air passages therebetween. The second fin set includes a plurality of fins. Every two neighboring fins define therebetween an air passage communicating with a corresponding air passage of the first fin set. A channel which is parallel to and has a width larger than that of the air passages of the first and second fin sets is defined in a middle of the second fin set.

Abstract: A heat dissipation device includes a base (10) for thermally engaging with an electronic device and a plurality of fins (320) arranged on the base (10). A heat pipe (52) thermally connects the fins (320) and the base (10) for transferring heat from the base (10) to the fins (320). The heat pipe (52) comprises an evaporation section (521) sandwiched between the base (10) and the fins (320), two condensation sections (525, 526) parallel to the evaporation section (521) and thermally engaging with the fins (320), and two connecting sections (527, 528) interconnecting corresponding condensation sections (525, 526) and the evaporation section (521). The connecting sections (527, 528) form an included angle therebetween. The condensation sections (525, 526) are spaced from and extend toward each other.