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Double-heat-dissipation device of LED street lamp

A technology of LED street lamps and heat sinks, which is applied to the cooling/heating devices, lighting devices, lighting and heating equipment of lighting devices, etc., can solve problems such as power consumption, reduce operating costs, eliminate power consumption, and increase heat exchange. The effect of coefficients

Inactive Publication Date: 2014-11-05
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current synthetic jet cooling devices are all electrical devices, such as using piezoelectric sheets to stimulate and realize jet flow, that is, they all actively consume electric energy.

Method used

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  • Double-heat-dissipation device of LED street lamp
  • Double-heat-dissipation device of LED street lamp
  • Double-heat-dissipation device of LED street lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 , figure 2 As shown, a dual heat dissipation device for an LED street lamp includes a plurality of LED integrated chips 1, a substrate 2, a heat exchange element 3, a fin radiator 4 and a synthetic jet radiator 5, and the LED integrated chip 1 is fixed on the substrate 2 Above, the base plate 2 is fixed on the heat exchanging element 3, and a fin radiator 4 is arranged at the center of the top surface of the heat exchanging element 3, and an equal number of synthetic jets are arranged on the left and right sides of the fin radiator 4. Radiator 5, the synthetic jet radiator is installed on the top surface of the heat exchange element.

[0021] The fin radiator 4 is composed of a plurality of heat dissipation fins, and the plurality of heat dissipation fins can be arranged in parallel, in a radian or in a sun pattern.

[0022] Such as Figure 4 As shown, the synthetic jet radiator 5 includes a cavity 501 with a rectangular cross section, the upper, le...

Embodiment 2

[0028] Such as image 3 As shown, there are two synthetic jet radiators in this embodiment, which are symmetrically arranged in the middle of the left and right sides of the finned radiator, one on each side of the finned radiator. Other features are the same as in Example 1.

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Abstract

The invention discloses a double-heat-dissipation device of an LED street lamp. The double-heat-dissipation device comprises LED integrated chips, a substrate, a heat exchange element, synthetic jet radiators and an insert radiator. The LED integrated chips are fixed onto the substrate, the substrate is fixed onto the heat exchange element, the insert radiator is arranged at the center of the top surface of the heat exchange element, the left side and the right side of the insert radiator are respectively provided with the same number of the synthetic jet radiators, and the synthetic jet radiators are installed on the top surface of the heat exchange element. The double-heat-dissipation device of the LED street lamp increases the heat exchange coefficient between air jets and cooling fins and greatly improves the heat dissipation performance.

Description

technical field [0001] The invention relates to the field of LED lighting, in particular to a dual cooling device for an LED street lamp. Background technique [0002] As a new type of lighting source, LED lights have the advantages of energy saving, environmental protection, and long service life, and are widely used in various public places. However, due to the high power of the LED, the LED light source still faces the problem that the heat of the chip is difficult to dissipate and the chip temperature is high during use, which causes color drift in the LED and affects the service life of the LED light source. For high-power lamps, increasing the heat sink area will lead to bulky lamps, which is not conducive to the development of future lamps. [0003] Synthetic jet is an active cooling technical solution, which generally adopts a diaphragm that can realize reciprocating motion. The diaphragm is connected to a power source, and the motion provided by the power source to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V29/00F21W131/103F21Y101/02
Inventor 田立新文尚胜
Owner SOUTH CHINA UNIV OF TECH
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