Composite phase-change three-dimensional light emitting diode (LED) heat radiator
A technology of LED radiator and composite phase change, applied in semiconductor devices, electrical components, circuits, etc., can solve the problem of difficult heat conduction of LED chips, achieve lower junction temperature, good economic and social benefits, and prolong life. Effect
Inactive Publication Date: 2012-07-04
SHAANXI TANGHUA ENERGY
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Problems solved by technology
In this way, it is more difficult to conduct the heat of the LED chip through the heat sink more effectively.
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[0022] The present invention will be described in detail below in combination with specific embodiments.
[0023] A composite phase-change three-dimensional LED heat sink according to the present invention is provided with a phase-change heat sink 1 and a thin-plate-shaped heat sink, and a thin-plate-shaped high thermal conductivity heat sink is arranged between the phase-change heat sink 1 and the thin-plate heat sink. slice 2. Both ends of the thin plate of the cooling fin are provided with folded sheets, and the folded sheets are provided with bulging curved surfaces, and the thin plate, the folded sheets and the curved surfaces on the folded sheets form the wing plate radiator 5 . The integrated LED chip 4 is embedded in the thin plate of the finned heat sink 5 . Strip grooves are arranged on the folded sheet and the curved surface of the wing plate radiator 5 . The surrounding edges of the high thermal conductivity sheet 4 are sealed by the heat-conducting rubber ring 2...
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The invention relates to a composite phase-change three-dimensional light emitting diode (LED) heat radiator. A chip is arranged below the conventional heat radiator structure for a high-power LED lamp, so that effective heat radiation of the heat radiator substantially relies on the surface area of the heat radiator. The composite phase-change three-dimensional LED heat radiator is provided with a phase-change heat radiator and a thin-plate heat radiation sheet, wherein a thin-plate high-heat-conduction sheet is arranged between the phase-change heat radiator and the thin-plate heat radiation sheet; folding sheets are arranged at two ends of a thin plate of the heat radiation sheet; bulged curved surfaces are formed on the folding sheets; the thin plate, the folding sheets and the curved surfaces on the folding sheets form a wing-plate heat radiator; an integrated LED chip is embedded in the thin plate of the wing-plate heat radiator; and strip-type slots are formed on the folding sheets and the curved surfaces on the wing-plate heat radiator. The composite phase-change three-dimensional LED heat radiator has a three-dimensional heat radiation sheet structure, and is integrated with the heat radiation advantages of the phase-change heat radiator and the wing-plate heat radiator, so that the heat radiation area of the LED chip is increased; due to the heat conduction sheet, the heat radiation efficiency is improved; and the service life of the LED lamp is prolonged effectively.
Description
technical field [0001] The invention belongs to the technical field of LED lamps, and in particular relates to a composite phase-change three-dimensional LED radiator. Background technique [0002] As a new generation of green and environmentally friendly solid-state lighting source, light-emitting diode LED has a series of advantages such as low power consumption, pure light color, all solid state, light weight, small size, and environmental protection. When the LED emits light, part of the energy will be converted into heat, which will increase the temperature of the LED chip. The temperature has a great influence on the working performance of the LED chip. High temperature will lead to the reduction of photons emitted by the chip, the decrease of color temperature quality, the acceleration of chip aging, and the shortening of device life and other serious consequences. Therefore, in order to ensure the normal operation of the LED, the heat emitted by it must be dissipat...
Claims
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IPC IPC(8): H01L33/64
Inventor 胡民浩高辉
Owner SHAANXI TANGHUA ENERGY