Abstract:
The present invention relates to a luminous device with a heat pipe formed therein and a heat pipe lead for a luminous device. The present invention provides a luminous device including a heat pipe lead or electrode and a luminous chip mounted onto the heat pipe lead or electrode. The luminous device of the present invention further comprises a heat dissipation member, such as a heat radiating plate or thermoelectric device, installed at an end of the heat pipe lead or electrode. Therefore, through the heat pipe lead or electrode of the present invention, a higher heat dissipation effect greater can be obtained as compared with the conventional one. As a result, it is possible to reduce thermal stress on a luminous device and to prevent the occurrence of a phenomenon in which external impurities penetrate into the luminous device. In addition, the cooling efficiency and the light-emitting efficiency of a luminous chip can be maximized by further disposing a heat dissipation member outside the heat pipe.
Abstract:
A liquid-cooled light emitting diode (LED) bulb which includes a base, a shell connected to the base forming an enclosed volume, and a plurality of LEDs attached to the base and disposed within the shell. The LED bulb also includes a volume of thermally-conductive liquid held within the enclosed volume. A scavenger element comprising a scavenger material is attached to the base and is exposed to the thermally-conductive liquid. The scavenger material is configured to capture contaminants in the thermally-conductive liquid.
Abstract:
A discharge electrode array for a silicon-based thin film solar cell deposition chamber is provided, relating to solar cell technologies. The discharge electrode array includes a signal feed component having a rectangular-shaped end, a flat waist corresponding to a feed-in port located in a hallowed rectangular area on a center region of a cathode plate having a shielding cover, connecting a feed-in power supply signal by surface contact. The electrode array includes at least a set of cathode plates and an anode plate, with two cathode plates sharing or surrounding one anode plate. Uniform large area and stable discharge driven by the RF/VHF power supply signal can be achieved, and the standing wave and the skin effect can be effectively removed. The production efficiency can be improved and the cost can be reduced.
Abstract:
Field emission devices utilizing capacitive ballasting are described with possible uses in industry. The preferred device utilizes opposing electrodes, each with a dielectric layer and a plurality of conductive islands which serve to exchange electrons, generating an oscillatory current. Ideally these islands are dome-shaped and made of a refractory metal such as tungsten of molybdenum. Through proper use and selection of materials, electrical fields with densities of 1014 A/m2 are capable of being generated.
Abstract:
An arrangement for heat dissipation for a heat generating electrical component (10) comprising a heat generating electrical component (10) arranged on the printed circuit board (20), in thermal contact with a thermally conductive layer (23) of the PCB. A thermally conductive mounting element (40) is attached to the thermally conductive layer (23) by means of soldering, and has a connecting portion (43) adapted to engage with a recess (31) in the heat sink (30); thereby enabling attachment of the printed circuit board (20) to the heat sink (30); wherein a thermal path is provided, from the heat generating electrical component (10), via the thermally conductive layer (23) and the mounting element (40), to the heat sink (30). By utilizing a thermally conductive mounting element, heat dissipation can be achieved with a PCB provided with a single thermally conductive layer, rather than the multi layer PCB required in prior art arrangements. As no screws and/or adhesives are used to attached the PCB to the heat sink, the PCB may easily be removed, and the problem of bending caused by differences in coefficient of thermal expansion is overcome.
Abstract:
The present invention is directed to a light-emitting diode (LED) illumination apparatus. The apparatus includes a housing, an LED substrate, at least two electrical-insulation clamping members and associated screws, and a heat-conduction pad. At least one LED chip is fixed on the surface of the LED substrate. Each electrical-insulation clamping member has a threaded hole for screwing the screw in order to fasten the electrical-insulation clamping member to the housing; and each electrical-insulation clamping member has a recess for clamping the LED substrate. The heat-conduction pad is disposed between the housing and the LED substrate, and is used to conduct heat generated by the LED chip.
Abstract:
A discharge electrode array for a silicon-based thin film solar cell deposition chamber is provided, relating to solar cell technologies. The discharge electrode array includes a signal feed component having a rectangular-shaped end, a flat waist corresponding to a feed-in port located in a hallowed rectangular area on a center region of a cathode plate having a shielding cover, connecting a feed-in power supply signal by surface contact. The electrode array includes at least a set of cathode plates and an anode plate, with two cathode plates sharing or surrounding one anode plate. Uniform large area and stable discharge driven by the RF/VHF power supply signal can be achieved, and the standing wave and the skin effect can be effectively removed. The production efficiency can be improved and the cost can be reduced.
Abstract:
An apparatus for producing electromagnetic radiation includes a flow generator configured to generate a flow of liquid along an inside surface of an envelope, first and second electrodes configured to generate an electrical arc within the envelope to produce the electromagnetic radiation, and an exhaust chamber extending outwardly beyond one of the electrodes, configured to accommodate a portion of the flow of liquid. In another aspect, the flow generator is electrically insulated. In another aspect, the electrodes are configured to generate an electrical discharge pulse to produce an irradiance flash, and the apparatus includes a removal device configured to remove particulate contamination from the liquid, the particulate contamination being released during the flash and being different than that released by the electrodes during continuous operation.
Abstract:
A lamp device comprises a lamp seat, having a body; a heat installed at an upper end of the body for electrically connecting to an external power source; an electric joint extending from the head; and a connecting shaft extending downwards; and a heat dissipation assembly including: a heat dissipating mask having an axial hole; the connecting shaft passing through the axial hole so that the heat dissipating mask is connected to the body; and the heat dissipating mask is rotatable; a conductive unit installed at an upper side of the heat dissipating mask; the conductive unit being electrically connected to the electric joint even the heat dissipating mask rotates with respect to the body; and a lamp set driven electrically and installed at a lower side of the heat dissipating mask; and the lamp set being retained to the conductive unit through the heat dissipating mask.
Abstract:
A lamp structure includes a transparent cap, a lamp housing, a ring section, a separating pad, and a lamp board. The lamp housing has heat dissipating fins annularly arranged around the lamp housing. An end of each of the heat dissipating fins adjacent to the transparent cap has a groove, and the transparent cap covers the top of the groove. The ring section connects the end of each of the heat dissipating fins adjacent to the transparent cap. The separating pad is disposed on the bottom of the groove and extends along a sidewall of the groove to a region below the transparent cap to form a separating wall. The lamp board having light emitting diode devices is disposed in a containing space between the transparent cap and the separating pad to preclude damages caused by electrostatic discharge.