Luminous diode lighting device and method for reducing heating power thereof

一种发光二极管、照明装置的技术，应用在照明装置的零部件、照明装置、照明装置的冷却/加热装置等方向，能够解决寿命缩短、破坏发光二极管照明装置、影响LED发光效率等问题，达到降低发热功率、减少热量的产生的效果

Inactive Publication Date: 2009-08-05
FOXSEMICON INTEGRATED TECHNOLOGY (SHANGHAI) INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally speaking, higher temperature will affect the luminous efficiency of LED and its life will be significantly shortened; More heat tends to accelerate the destruction of light-emitting diode lighting devices that contain LEDs

Method used

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  • Luminous diode lighting device and method for reducing heating power thereof
  • Luminous diode lighting device and method for reducing heating power thereof
  • Luminous diode lighting device and method for reducing heating power thereof

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Experimental program
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Embodiment Construction

[0013] Please refer to figure 1 , The LED lighting device 10 provided by the first embodiment of the present invention includes: an LED light source 11 , a cooling device 12 , a temperature sensing device 13 , a power supply 14 and a pulse modulation controller 15 .

[0014] The LED light source 11 includes a substrate 110 and at least one LED 112 formed on the substrate 110 . A line (not shown) connected to the positive and negative electrodes of the at least one light emitting diode 112 is formed inside the substrate 110 , so that the light emitting diode 112 can obtain electric energy required for light from the outside through the line inside the substrate 110 .

[0015] The heat sink 12 is thermally connected to the substrate 110 for dissipating heat generated by the LEDs 112 and conducted to the substrate 110 . In this embodiment, the heat dissipation device 12 is a heat dissipation fin disposed on a side of the substrate 110 away from the LED 112 .

[0016] The temper...

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PUM

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Abstract

The invention provides an LED illuminating apparatus which comprises a LED light source, a radiating device, a temperature sensing device, an electrical source and a pulse modulating controller. The pulse modulating controller has a direct current output mode and a pulse output mode, the temperature sensing device is used for sensing the operating temperature of the LED light source, when the operating temperature of the LED light source sensed by the temperature sensing device is more than or equal to a preset temperature, the pulse modulating controller switches into the pulse output model so as to output pulse current or voltage for reducing the heating power of the LED light source. The invention also provides a method for reducing the heating power of the LED illuminating apparatus.

Description

technical field [0001] The invention relates to a light-emitting diode lighting device and a method for reducing the heating power of the light-emitting diode lighting device. Background technique [0002] Light Emitting Diode (LED, Light Emitting Diode), as a semiconductor light source, has the advantages of high brightness, low operating voltage, low power consumption, easy matching with integrated circuits, simple driving, and long life, so it can be widely used as a light source. In the field of lighting, please refer to the article Thermal Considerations for LED Components in an Automotive Lamp by Joseph Bielecki et al. in the 23rd IEEE SEMI-THERM Symposium. [0003] Generally speaking, higher temperature will affect the luminous efficiency of LED and its life will be significantly shortened; More heat tends to accelerate the destruction of light-emitting diode lighting devices that contain LEDs. [0004] In view of this, it is necessary to provide an LED lighting dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V29/00H05B37/02F21Y101/02
CPCF21V29/004F21V29/225F21S48/328F21Y2101/02F21V29/763F21Y2115/10F21V23/0442F21V29/70F21S45/47
Inventor 赖志铭王君伟
Owner FOXSEMICON INTEGRATED TECHNOLOGY (SHANGHAI) INC
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