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Light-emitting diode (LED) optical engine and LED illuminating lamp

A technology of LED light source and light engine, applied in lighting devices, lighting and heating equipment, components of lighting devices, etc., can solve the problems of poor circulation, decreased heat dissipation performance, and no display.

Inactive Publication Date: 2013-04-10
秦彪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the axial direction of the heat sink is placed horizontally, the heat dissipation air is not easy to flow through the surface of the fins, and there are many air flow dead zones, and the circulation is poor, so the heat dissipation performance is significantly reduced
Currently disclosed products and technologies do not show a solution to this problem

Method used

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  • Light-emitting diode (LED) optical engine and LED illuminating lamp
  • Light-emitting diode (LED) optical engine and LED illuminating lamp
  • Light-emitting diode (LED) optical engine and LED illuminating lamp

Examples

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Embodiment Construction

[0023] specific implementation plan

[0024] figure 1 , 2 , 3 show three kinds of sun fancy heat sinks with different shapes, the fins 1 protrude from the side of the heat conduction column 2, and the heat conduction column 2 in the center of the heat sink is a hollow structure. Using the aluminum extrusion method, the profile can be manufactured, and it can be cut to make a sun fancy heat sink. The manufacturing cost is low, and because of the high ribbing efficiency (material saving) and low internal thermal resistance, it is LED. Cooling first choice.

[0025] Figure 4 In the present invention shown, the ribs 1 are divided into three sections by the cross-flow grooves 5 (two cross-flow grooves are provided), and the three-section short ribs 4 are most suitable for the height h of the short ribs to be between 3 and 8 mm. The depth c of the cross-flow groove shown in the figure is greater than half of the rib length L mentioned above. When designing, the cross-flow groov...

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Abstract

The invention provides a light-emitting diode (LED) optical engine which is a standard module of an LED illuminating device and can be conveniently realized. The LED optical engine comprises an LED light source (3) and cooling fins, wherein the cooling fins form a sunflower-shaped structure. The LED optical engine is mainly characterized in that the cooling fins (1) are respectively provided with cross flow grooves (5); each cooling fin is divided into a plurality of short fins (4), so that the problems that the ventilation performance is poor and the heat dissipation performance seriously worsens when axes of the cooling fins are horizontally arranged are solved. The LED light source (3) and an external power supply are connected by adopting a splicing structure, so that assembly and maintenance are convenient. The invention also provides an LED bulb lamp with an optimized structure size and a novel structure, and thus, lower manufacturing cost and a higher heat dissipation effect can be realized.

Description

technical field [0001] The invention belongs to the technical field of LED lighting, and in particular relates to an LED lighting device adopting a solar fancy cooling fin. technical background [0002] Due to the advantages of energy saving and environmental protection, LED is considered to be the next generation lighting technology for human beings. However, due to the high cost and low reliability, the popularization and application of LED lighting is hindered. The main reason for the high price and unreliability is the LED heat dissipation problem. [0003] The working temperature of LED is not high, below 100°C, so its heat dissipation mainly depends on convection heat transfer, and the proportion of radiation heat transfer is very small. In the process of convective heat transfer, the heat is finally taken away by air flow, so it is very important to ensure smooth air flow, especially natural convection heat transfer (the heat dissipation method used by LED lamps), b...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21V29/00F21V19/00F21V23/06F21Y101/02F21K9/232F21K9/237F21K9/238F21V29/77F21Y115/10
Inventor 秦彪
Owner 秦彪
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