Patent application number | Description | Published |
20080316755 | LED LAMP HAVING HEAT DISSIPATION STRUCTURE - An LED lamp includes a lamp base, a heat sink and a plurality of LED modules. The lamp base includes a lamp holder and an enclosure connecting with the lamp holder. The enclosure defines a plurality of vents therein. The heat sink is mounted on the lamp base and includes a cylinder at a centre thereof and a plurality of fins surrounding the cylinder. The cylinder has a through hole therein, which communicates with the enclosure. The through hole, the enclosure and the vents cooperatively form an air circulation passage communicating with ambient air. The LED modules are mounted on outmost ones of the fins of the heat sink, respectively. | 12-25-2008 |
20090016072 | LED LAMP WITH A HEAT DISSIPATION DEVICE - An LED lamp includes a heat sink ( | 01-15-2009 |
20090021944 | LED LAMP - An LED lamp includes a bulb, an LED module having a plurality of LEDs received in the bulb and a heat dissipation apparatus supporting and cooling the LED module. The heat dissipation device includes a heat sink, a hollow first heat conductor, and a heat pipe. The heat sink has a hollow base and a plurality of fins mounted on the base. The hollow first heat conductor is supported by the heat sink. The heat pipe is retained in the heat sink and the first heat conductor in such a manner that an outer periphery surface of the heat pipe is tightly enclosed by the base and the first heat conductor. The LEDs are distributed on the first heat conductor. | 01-22-2009 |
20090040759 | LED LAMP WITH A HEAT SINK ASSEMBLY - An LED lamp includes a hollow first heat sink ( | 02-12-2009 |
20090040776 | LED LAMP WITH A HEAT DISSIPATION DEVICE - An LED lamp includes a heat sink ( | 02-12-2009 |
20090071624 | HEAT SINK - A heat sink adapted for removing heat from a plurality of LEDs, includes a heat-conducting member, a plurality of conducting arms extending radially and outwardly from a periphery of the heat-conducting member and a plurality of outer fins perpendicularly extending from at least a lateral side of each of the conductive arms. The outer fins are spaced from and surround the heat-conducting member. Outer faces of outermost ones of the outer fins are used for thermal connection with the LEDs, whereby heat generated by the LEDs is absorbed by the heat sink. A plurality of spaces is defined between the outer fins, the heat-conducting member and the conducting arms and through bottom and top of the heat sink, whereby the heat absorbed by the heat sink can be easily dissipated to surrounding atmosphere along a vertical direction. | 03-19-2009 |
20090120612 | HEAT DISSIPATION DEVICE FOR LIGHT EMITTING DIODE MODULE - A heat dissipation device includes a heat sink and an LED module attached to the heat sink. The heat sink includes a base and a plurality of fins mounted on the base. A plurality of channels is defined between the fins of the heat sink and slits are defined in two opposite side edges of the base. The slits extend through the base and corresponding fins and cross with corresponding channels. A plurality of grooves is defined in the fins opposite to the LED module. Each of the grooves interconnects corresponding two aligned slits. | 05-14-2009 |
20090129103 | LED LAMP WITH A HEAT DISSIPATION DEVICE - An LED lamp includes a heat sink, a triangular-shaped ridge positioned on the heat sink and an LED module mounted on the ridge. The heat sink includes a base and a plurality of first and second fins respectively extending from a first and a second surface of the base, with a plurality of channels defined between the first and second fins. The ridge is positioned on the second surface of the base. The ridge has a lateral surface which has a height decreasing from a middle to a lateral side of the ridge and decreasing from a rear end to a front end of the ridge. The LED module is mounted on the lateral surface of the ridge. | 05-21-2009 |
20090141494 | LED LAMP - An LED lamp includes a first heat sink, a second heat sink and a plurality of LED modules. The second heat sink is located at a lateral side of the first heat sink and pivotally connects with the first heat sink. The LED modules are evenly attached on bottoms of the first and second heat sinks. The second heat sink can be rotated relative to the first heat sink to be fixed at a required position, whereby an illumination angle of the LED lamp can be adjusted. Heat generated by the LED modules is dissipated by the first and second heat sinks. | 06-04-2009 |
20090147521 | LED LAMP - An LED lamp includes a housing having a base, a frame at a top end of the housing and a plurality of stanchions interconnecting the base and the frame. A heat sink is mounted on the frame. An LED module is received in the housing and attached on a bottom surface of the heat sink. A printed circuit board is arranged on the base of the housing, and a reflector is located on the printed circuit board. A transparent envelope is received in the housing and covers windows defined between the stanchions. A light generated by the LED module is reflected by the reflector to transmit outwardly through the envelope to illuminate a surrounding environment. | 06-11-2009 |
20090154168 | LED LAMP - An LED lamp includes a frame, a heat sink, an LED module and a reflector. The frame comprises a base, an upper ring spaced from the base and a plurality of stanchions connecting the upper ring and the base together. The heat sink is coupled to a top of the upper ring and covers a whole of a top of the frame. The LED module is attached to a bottom surface of the heat sink and surrounded by the upper ring. The reflector is placed on the base and has an outer surface facing and slantwise to the LED module. The reflector has a configuration like an inverted funnel. The outer surface of the reflector has multiple steps formed thereon. | 06-18-2009 |
20090168416 | LED LAMP - An LED lamp includes a heat sink having a base and a plurality of fins extending from the base. A plurality of LED modules is thermally attached to the base of the heat sink. A lamp frame surrounds the LED modules on the heat sink and is hermetically mounted to the heat sink. A lens is hermetically attached to the lamp frame and covers the LED modules. The fins includes a plurality of first fins extending from a first face of the base of the heat sink, and second fins extending from a second face of the base. The LED modules are located between the second fins. A pole has a top end engages with the lamp frame. The pole is used for mounting the LED lamp at a desired position, for example, a sidewalk of a street. | 07-02-2009 |
20090168417 | LED LAMP - An LED lamp includes a base, a top cover located above the base, a plurality of heat sinks spaced from each other and three LED modules respectively attached to inner sides of the three heat sinks. The heat sinks are sandwiched between base and the top cover and have a plurality of fins extending outwardly from outer sides thereof. | 07-02-2009 |
20090213592 | LED LAMP WITH HEAT SINK ASSEMBLY - An LED lamp includes a support, an envelope, a heat sink assembly and a plurality of LED modules. The envelope is coupled to the support. The heat sink assembly includes a first heat sink mounted on the envelope, a cylindrical second heat sink attached to a bottom surface of the first heat sink and positioned in the envelope, and a plurality of heat pipes. The LED modules are mounted on an outside wall of the second heat sink. The heat pipes have condensing portions embedded in the bottom surface of the first heat sink and evaporating portions sandwiched between the outside wall of the second heat sink and the LED modules. | 08-27-2009 |