Radiating device and LED (light emitting diode) lamp applying same
A heat dissipation device and LED lamp technology, applied in cooling/heating devices of lighting devices, lighting devices, lighting and heating equipment, etc., can solve the heat transfer effect of heat dissipation fins that are difficult to weld on aluminum substrates, and soft silicone heat-conducting insulating pads General and other problems, to achieve the effect of good heat dissipation, simple structure, and tight welding
Inactive Publication Date: 2011-08-03
东莞宏灿光电制品有限公司
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Problems solved by technology
Existing radiators are generally made of drawn aluminum and cut into a certain distance. When the air is convected, the heat dissipation of this structure can only be carried out in the up and down direction; there are also some popular radiators that combine multiple radiators. The fins are pasted on the aluminum substrate through a soft silicone thermal insulation pad. Although this method can set the shape of the heat sink according to the needs, the heat transfer effect of the soft silicone thermal insulation pad is average; to achieve a better heat transfer effect, you can Weld the cooling fins on the aluminum substrate, but due to the characteristics of the material itself, it is difficult to weld the aluminum cooling fins on the aluminum substrate
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[0026] In order to make the object, technical solution and advantages of the invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0027] see Figure 1 to Figure 3 , a heat dissipation device, comprising an aluminum substrate 2 and an aluminum heat sink 3 fixed on the aluminum substrate 2; the aluminum heat sink 3 includes a plurality of heat dissipation fins 31, and the surface of the heat dissipation fins 31 is provided with a nickel-plated layer A tin layer is provided between the heat dissipation fins 31 and the aluminum substrate 2, and the heat dissipation fins 31 and the aluminum substrate 2 are welded together through the tin layer.
[0028] Wherein, the thickness of the nickel plating layer is 10 microns-20 microns, and the optimum thickness is 15 microns. The thickness of the nickel plating layer is moderate, which can not only satisfy the better welding effect, but also sa...
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The invention discloses a radiating device and an LED (light emitting diode) lamp applying the same, belonging to the technical field of light emitting diode illumination. The radiating device comprises an aluminum base plate and an aluminum made radiating fin which is fixed on the aluminum base plate; the aluminum made radiating fin comprises a plurality of radiating fins; the surface of each radiating fin is provided with a nickel plate; a tin layer is arranged between the radiating fins and the aluminum base plate; and the radiating fins are welded with the aluminum base plate together through the tin layer. The radiating fins provided by the invention can be designed as a shape which is suitable for air convection according to the requirement of the lamp fitting, thus the radiating surfaces are more, and the radiation is faster; the radiation fins coated with nickel is welded with the aluminum base plate together through the tin layer, the welding of the aluminum and the aluminum made radiating fins is more tight, the difficulty that the aluminum made radiating fins can not be welded in the traditional technology is solved, the radiating fins have simple structures, have higher heat conductivity, and better radiating effect; and the radiating fins are externally provided with the nickel coated layer which plays a role of corrosion resistance and anti-oxidation.
Description
technical field [0001] The invention relates to the technical field of light-emitting diode lighting, in particular to a heat dissipation device and an LED lamp using the heat dissipation device. Background technique [0002] LED (Light-emitting diode) is widely used in various fields as an energy-saving and high-efficiency light source. However, the heat generated by the LED itself is one of the important factors affecting the service life of the LED. In order to prolong the use of LED lights Lifespan, LED lamps are provided with heat sinks, and the heat dissipation performance of the heat sinks is the focus of people's general attention. [0003] Aluminum heat sinks are widely used due to their good heat dissipation effect, simple processing method and low cost. Existing radiators are generally made of drawn aluminum and cut into a certain distance. When the air is convected, the heat dissipation of this structure can only be carried out in the up and down direction; ther...
Claims
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IPC IPC(8): F21V29/00F21Y101/02F21V29/77F21V29/89F21Y115/10
Inventor张俊赖显洋刘昆兵
Owner东莞宏灿光电制品有限公司