Abstract: A heat sink clip (30) includes an elongated resilient main body (31) with two spaced barbs (315) at a first end thereof, a first locking member (33) coupled with a second end of the main body and a moveable second locking member (32) movably coupled with the first end of the main body. The barbs each vertically extend and include a neck (3151) connecting with the main body and a locking end (3152) at a free end thereof. The moveable second locking member includes an operating portion (321) and a locking leg (322) defining two connecting slots (323) therein. Each of the connecting slots includes a longitudinally narrow portion (3231) and a longitudinally wide portion (3232) beside the narrow portion. The barbs enter the connecting slots through the wide portions and the necks are received in the narrow portions.

Abstract: A heat dissipation apparatus includes a heat sink (30) and a fan (50) mounted on the heat sink. The heat sink includes a plurality of radial fins (311, 331). An air channel (312, 332) is defined between every two adjacent fins. Each of the fins includes a main body (331, 331) and an airflow guiding flange (314, 334) angling outwardly from a top side of the main body. The airflow guiding flange tapers from an outer side (318, 338) towards an inner side (317, 337) of the main body. The fan is used to generates airflow towards the heat sink. The airflow is guided into the air channels between the fins via the airflow guiding flanges.

Abstract: A heat dissipation device includes a heat sink and a cooling fan. The heat sink includes a substrate and a plurality of fins. The cooling fan includes a fan housing defining an air inlet and an air outlet at two opposite sides thereof, and an impeller received in the fan housing and mounted to a supporting base provided at the air inlet. The air outlet is positioned adjacent to the heat sink. The impeller includes a hub, a plurality of main blades and auxiliary blades. The hub includes a top wall located at the air outlet and a sidewall extending from the top wall. The main blades extend radially and outwardly from the sidewall. The auxiliary blades located on the top wall extend from a center of the top wall towards an outer periphery of the top wall.

Abstract: A heat dissipation device includes an electric fan having a fan impeller with a hub and a heat sink. A plurality of main blades and subsidiary blades extend radially and outwardly from the hub and alternate with each other. The electric fan forms an air inlet and an air outlet. The main blades have connecting portions on the hub which are extended towards a center of the hub at the air outlet. The subsidiary blades have a smaller radial length than the main blades. The subsidiary blades each have a connecting edge on the hub which is extended toward the center of the hub adjacent to the air outlet. The fan impeller drives more air to the center of the air outlet, whereby more air can flow to a center of the heat sink.

Abstract: An LED lamp (100) includes a lamp enclosure (10), a heat sink (51) and two LED modules (30). The lamp enclosure has a recess (15) and an opening (156). The heat sink is received in the recess of the lamp enclosure. The LED modules are attached to a bottom of the heat sink and oriented downwardly and outwardly towards an internal surface (1110) of the lamp enclosure. Light emitted by the LED module is firstly directed to the internal surface and other internal surfaces (130, 1130), and then reflected from the internal surfaces to an outside of the LED lamp through the opening.

Abstract: An LED lamp (10) includes a lamp base (100), an optical lens system (400), an LED (500) mounted in the optical lens system and a heat dissipation device (300) interconnecting the lamp base and the optical lens system. The heat dissipation device includes a heat sink (334) and a heat pipe (332). The heat sink includes a central block (3340), a plurality of fins (3342) mounted on an outer circumferential face of the central block and a receiving hole (3346) defined axially through the central block. The heat pipe is circumferentially retained in the receiving hole and in thermal contact with the LED.

Abstract: A heat dissipation device (100) includes a fin assembly (10) having a plurality of fins (12). Each fin includes a locking tab (126b) with a connecting end (1268), a free end (1269), a hole (1261) adjacent to the connecting end, a hook (1262) adjacent to the free end, and a tongue (1263) between the hole and the hook. A punched hole (127b) in each fin is adjacent to the locking tab, which extends through the punched hole of an adjacent fin. The hook of the locking tab engages the hole in the locking tab of the adjacent fin, locking them together.

Abstract: A fin assembly includes a plurality of fins interconnected together. Each of the fins includes a main body defining a plurality of openings and a plurality of locking units formed on the main body beside the plurality of openings, respectively. Each of the locking units includes an extension tab, a locking tab and a connecting tab. An engaging hole is defined in the extension tab. The locking tab forms an elastically deformable finger thereon. A locking tab of a fin is received in a corresponding opening of an adjacent fin. A free end of the locking tab of the fin resists on a connecting tab of the adjacent fin. A finger of the fin is engaged into an engaging hole of the adjacent fin.

Abstract: An exemplary heat dissipation device includes a plurality of parallel fins, a heat pipe extending through the fins, and a guiding structure formed on each of the fins. An airflow channel is formed between every two neighboring fins for an airflow flowing therethough. The guiding structure is formed for guiding the airflow to flow to the heat pipe. A space is defined within the guiding structure and has a width decreasing gradually along a flowing direction of the airflow. An opening is defined in the guiding structure for communicating airflow at two opposite sides of each fin. A height of the guiding structure decreases gradually from the opening towards other sides of the guiding structure.

Abstract: An LED lamp (100) includes a lamp enclosure (10), a heat sink (51) and two LED modules (30). The lamp enclosure has a recess (15) and an opening (156). The heat sink is received in the recess of the lamp enclosure. The LED modules are attached to a bottom of the heat sink and oriented downwardly and outwardly towards an internal surface (1110) of the lamp enclosure. Light emitted by the LED module is firstly directed to the internal surface and other internal surfaces (130, 1130), and then reflected from the internal surfaces to an outside of the LED lamp through the opening.

Abstract: A clip includes a main body, a pair of locking members integrally formed at opposite ends of the main body, and a securing member secured onto one of the locking members. The one locking member includes an upper portion, a lower portion wider than the upper portion, and a step between the upper and lower portions. The securing member includes a handling portion and an engaging portion extending downwardly from the handling portion. A pair of flanges are formed on the engaging portion facing the main body and abutting the step. A clearance is defined between the flanges and the engaging portion receiving the upper portion. One of the engaging portion and the one locking member forms an engaging hole, and the other one forms a hook engaging into the engaging hole.

Abstract: An LED lamp (100) includes a lamp enclosure (10), two arrays of LEDs (33) and a fixing plate (20). The lamp enclosure defines a depression (15) therein and an opening (156) at a top side thereof. The LEDs are received in the depression. The fixing plate is vertically received in the depression and has two lateral sides (23) facing towards an internal surface (110) of the lamp enclosure. The LEDs are mounted on two LED modules (30) which are respectively mounted on the lateral sides of the fixing plate so that the light rays (71, 73) emitted by the LEDs are firstly directed to and reflected by the internal surface of the lamp enclosure, and then directed to an outside of the LED lamp through the opening.

Abstract: A mounting device (10) for mounting a heat sink (20) to a printed circuit board (40) on which a heat generating electronic component (30) is disposed, includes a mounting frame (100), two clasping legs (104) and four resilient arms (105). The mounting frame includes two first mounting arms (101) and two second mounting arms (102) disposed above the first mounting arms. The first mounting arms abut on the circuit board. The clasping legs connect with the second mounting arms and are inserted through the printed circuit board to be attached to the printed circuit board. The resilient arms connect with the second mounting arms and exert a downward resilient force on the heat sink toward the heat generating electronic component.

Abstract: An LED lamp (100) includes a lamp enclosure (10), an LED module and a reflective plate (50). The lamp enclosure has a groove (15) and an opening (156). The opening is located above and communicates with the groove. The LED module and the reflective plate are received in the groove of the lamp enclosure. The LED module is oriented towards the opening. The reflective plate is located between the LED module and opening in such a manner that at least a portion of light (71) emitted by the LED module is firstly directed to the reflective plate, and then reflected from the reflective plate to an internal surface (115) of the lamp enclosure, and at last reflected from the internal surface to the opening.

Abstract: A heat dissipation device includes a heat sink and a cooling fan arranged thereon. The cooling fan includes a motor-stator and an impeller mounted around the motor-stator. The motor-stator is arranged on a middle of the heat sink. The heat sink includes a base and a plurality of fins extending upwardly from the base. The heat sink defines a plurality of notches incising the fins. The notches are angled towards the middle of the heat sink immediately under the motor-stator of the cooling fan.

Abstract: A securing device includes a securing member defining a securing hole therein, and a fastener extending through the securing hole. The fastener includes a spring, and a bolt having a main portion, a bottom fixing portion, and a top head portion. The securing hole includes a large portion, a small portion, and a concave around the small portion. A diameter of the small portion is greater than the main portion and smaller than the fixing portion. A diameter of the large portion is greater than the fixing portion and smaller than the spring. The main portion extends through the small portion with the fixing portion tightly abutting the securing member. The spring is mounted around the main portion and received in the concave. The spring is compressed between the head portion and a step of the securing member in the concave.

Abstract: A securing device includes a securing member defining a securing hole, and a fastener. The fastener includes a spring, and a bolt having a main portion, a bottom fixing portion, and a top head portion. The securing hole includes an inner portion and an outer portion extending horizontally from the inner portion to an outside. A width of the outer portion is smaller than the fixing portion and larger than the main portion. The main portion enters into the inner portion through the outer portion. The fixing portion abuts against a bottom of the securing member. The spring is compressed between a top of the securing member and the head portion. A concave is depressed from the securing member and surrounds the inner portion. A lower portion of the spring is fittingly received in the concave.

Abstract: A light emitting diode (LED) lamp includes a lampshade, a light guide pole and a plurality of LEDs. The light guide pole is of light permeable material and received in the lampshade. A plurality of irregular elements is formed on an outer surface of the light guide pole. A distribution density of the irregular elements decreases gradually from two ends of the light guide pole towards a middle of the light guide pole. The LEDs are mounted at the two ends of the light guide pole. Light emitted by the light emitting diodes falls incident into the light guide pole and exits the light guide pole from the outer surface thereof.

Abstract: A securing structure of a heat dissipation device for an electronic component includes a fastener and a securing arm. The fastener includes a bolt and a spring surrounding the bolt. The bolt includes a main portion, a bottom fixing portion and a top head portion. An aperture extends inwardly from a free end of the securing arm with a width not smaller than the main portion and smaller than the fixing portion. The main portion of the bolt is received in the aperture with the spring compressed between an upper surface of the securing arm and the head portion, and the fixing portion abutting a lower surface of the securing arm. An engaging portion extends perpendicularly from the securing arm around the aperture and engages with the fastener to hold the fastener in the aperture of the securing arm.

Abstract: A securing device (30) is used for securing a heat sink (10) to a printed circuit board (40) with a heat-generating electronic component (41) mounted thereon. The securing device includes a V-shaped elongated main body (31), a first locking leg (34), a second locking leg (332) and a resilient member (32). The first locking leg and second locking leg are connected to two opposite ends of the main body respectively for engaging with a retention frame (20) on the printed circuit board. The resilient member includes a planar-shaped supporting plate (321) engaging with a bottom portion of the main body and at least one resilient foot (322) extending downwardly from the supporting plate. The resilient foot deforms to exert a resilient force on the heat sink when the heat sink is assembled to the electronic component by the securing device.