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LED device with temp. control function

A light-emitting diode and temperature control technology, which is applied in lighting devices, cooling/heating devices of lighting devices, lighting and heating equipment, etc., can solve problems such as burning out light-emitting diodes and poor heat dissipation efficiency

Inactive Publication Date: 2007-07-18
POLYTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to improve the brightness, the light source module composed of multiple LEDs or the high-efficiency LED device with large crystal grains still has the doubt of poor heat dissipation efficiency, and may burn the LEDs

Method used

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  • LED device with temp. control function
  • LED device with temp. control function
  • LED device with temp. control function

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Embodiment Construction

[0021] The present invention will be described based on the drawings to clearly reveal the technical features of the present invention.

[0022] FIG. 1 is a schematic diagram of a light-emitting diode device with a temperature control function according to a first embodiment of the present invention. A light emitting diode device 10 with a temperature control function includes a heat sink 11, a heat conducting layer 12, a first electrode 13, a second electrode 14, a light emitting diode die 15 and a temperature control element 16. The light-emitting diode die 15, the first electrode 13 and the second electrode 14 are arranged on the surface of the heat-conducting layer 12, and the other side of the heat-conducting layer 12 is in contact with the heat sink 11 to make the light emitting The diode die 15 dissipates heat. In brief, the thermal conductive layer 12 and the heat sink 11 carry the LED die 15 and are used for heat dissipation when it emits light (for example, emits white l...

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Abstract

The invention discloses a LED device with a temperature controlling function, which includes: a LED grain, a cooling unit, a thermal conductivity layer and a temperature controlling component. The described cooling unit and the thermal conductivity layer on the surface of the cooling unit carriers the LED grain, which cools for the LED grain when the LED grain connects the power (i.e. light). The described temperature controlling component series between the LED grain and the power, which has a character of positive temperature coefficient, and the distance between the LED grain and the component, is less than 3 cm. The described thermal conductivity layer can be composed of polymer dielectric materials and thermal conductivity is larger than 1.0W / mK (room temperature 25deg.C).

Description

Technical field [0001] The present invention relates to a light emitting diode (LED) device, in particular to a light emitting diode device with temperature control functions such as over-temperature protection or temperature adjustment. Background technique [0002] In recent years, white light-emitting diodes are the most promising emerging products that have attracted the most global attention. It has the advantages of small size, low power consumption, long life and fast response speed, etc., and can solve many problems that were difficult to overcome with incandescent bulbs in the past. [0003] At present, Europe, the United States and Japan, based on the consensus of energy conservation and environmental protection, are actively developing white light emitting diodes as the new light source for lighting in this century. In addition, many countries currently rely on imports for energy, making it extremely valuable for the development of the lighting market. According to exp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00H01L23/34F21V29/00F21V29/50F21V29/85H01L33/64
CPCH01L2224/48091H01L2924/0002H01L2224/73265H01L2224/48137H01L2924/00014
Inventor 王绍裘游志明
Owner POLYTRONICS TECH
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