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Lighting device

A lighting device and columnar technology, which is applied in the direction of lighting devices, cooling/heating devices of lighting devices, lighting and heating equipment, etc., can solve the problem that the luminous intensity of light-emitting diodes is prone to attenuation, the service life is shortened, and the stability of light-emitting diodes is easily affected. The influence of ambient temperature and other issues, to achieve the effect of guaranteeing luminous characteristics, enhancing air convection, and improving heat dissipation efficiency

Inactive Publication Date: 2010-10-27
FOXSEMICON INTEGRATED TECHNOLOGY (SHANGHAI) INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The stability of light-emitting diodes during use is easily affected by the surrounding temperature. For example, when the temperature is too high, the luminous intensity of light-emitting diodes is prone to attenuation, resulting in a shorter service life

Method used

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Embodiment Construction

[0011] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0012] see figure 1 , the first embodiment of the present invention provides a lighting device 100 , which includes a heat dissipation unit 10 and a plurality of solid-state light sources 18 .

[0013] The heat dissipation unit 10 includes a columnar body portion 12 and a plurality of heat dissipation fin sets 16 . Wherein, the columnar body portion 12 includes a supporting portion 120 and a bearing portion 122 connected along its extending direction. Each cooling fin group 16 includes a hollow cylindrical ring 160, and a plurality of cooling fins 162 formed by extending outward from the hollow cylindrical ring 160, and the plurality of cooling fins 162 surround the hollow cylindrical ring 160 The uniform distribution forms a radial shape, and each cooling fin 162 is flat.

[0014] In this embodiment, the supporting portion 120 has a cyl...

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Abstract

The invention relates to a lighting device. The lighting device comprises a radiating unit and at least one solid light source, wherein the radiating unit comprises a column-shaped main body part and a plurality of radiating fin groups arranged at one end of the column-shaped main body part; the plurality of radiating fin groups are sleeved on the column-shaped main body part at intervals sequentially along the extending direction of the column-shaped main body part; each radiating fin group comprises a plurality of radiating fins which surround the column-shaped main body part and are distributed uniformly and radially; and the at least one solid light source is arranged at the other end of the column-shaped main body part far away from the plurality of radiating fin groups.

Description

technical field [0001] The invention relates to a lighting device, in particular to a lighting device with better heat dissipation efficiency. Background technique [0002] Currently, Light Emitting Diodes (LEDs) are gradually replacing Cold Cathode Fluorescent Lamps (CCFLs) as light-emitting elements in lighting devices due to their good light quality and high luminous efficiency. For details, please refer to Michael S. "Solid-State Lighting: Toward Superior Illumination" published by Shur et al. in Proceedings of the IEEE, Vol.93, No.10 (October 2005). [0003] The stability of the light-emitting diodes during use is easily affected by the surrounding temperature. For example, when the temperature is too high, the luminous intensity of the light-emitting diodes is likely to attenuate, resulting in a shortened service life. [0004] In view of this, it is necessary to provide a lighting device with better heat dissipation efficiency. Contents of the invention [0005] A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V29/00H01L23/367F21Y101/02
CPCF21K9/00F21V29/004F21Y2101/02F21V29/777F21V29/83F21Y2115/10F21V29/503
Inventor 黄歆斐黄正杰卢建廷陈颖庆刘育彬
Owner FOXSEMICON INTEGRATED TECHNOLOGY (SHANGHAI) INC