LED lamp heat radiation device based on synthetic double-jet exciter

A technology of LED lamps and cooling devices, which is applied in the direction of cooling/heating devices of lighting devices, lighting devices, lighting and heating equipment, etc., can solve problems such as unsatisfactory needs, and achieve favorable air circulation, improve energy utilization efficiency, and improve The effect of cooling efficiency

Active Publication Date: 2014-11-19
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high energy density of high-power LED lamps, passive heat dissipation in the usual sense can no longer meet the needs

Method used

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  • LED lamp heat radiation device based on synthetic double-jet exciter
  • LED lamp heat radiation device based on synthetic double-jet exciter
  • LED lamp heat radiation device based on synthetic double-jet exciter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Figure 1 to Figure 3 An embodiment of the present invention is shown, the LED lamp heat dissipation device based on the synthetic double-jet actuator of this embodiment includes a heat dissipation assembly 3 for heat dissipation of the LED chip 7 and a synthetic dual-jet actuator 2, and the synthetic dual-jet actuator The output port of 2 faces the cooling assembly 3, and outputs the synthetic jet 6 to cool the cooling assembly 3. In this embodiment, a synthetic double-jet actuator 2 is included, and the heat generated by the LED chip 7 is exported and dissipated to the surrounding air through the heat dissipation assembly 3, and the synthetic dual-jet actuator 2 is used to generate a synthetic jet 6 to periodically actively strengthen the heat dissipation assembly 3 Heat dissipation, accelerate the circulation and exchange of air, fast heat dissipation, simple and compact structure.

[0023] In this embodiment, the heat dissipation assembly 3 includes multiple rows o...

Embodiment 2

[0028] Figure 4 Another embodiment of the present invention is shown. In this embodiment, multiple synthetic double-jet actuators 2 are set and evenly distributed in the area opposite to the heat dissipation assembly 3. The structure of a single synthetic dual-jet actuator 2 is the same as that of embodiment 1. Similarly, since the first cavity 22 and the second cavity 23 share a vibrating membrane 21 and are left-right symmetrical, it is very easy to realize the integration of the synthetic double-jet actuators 2, and each synthetic dual-jet actuator 2 is driven by a power supply, and the power of the power supply is corresponding The multiplier is increased. In this embodiment, an inverter is added to control different vibrating membranes 21, so that the synthetic jet 6 has different characteristics. When working, synthetic jets 6 are generated downstream of each synthetic double-jet actuator 2, and the total energy of this integrated actuator is significantly higher than t...

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Abstract

The invention discloses an LED lamp heat radiation device based on a synthetic double-jet exciter. The LED lamp heat radiation device comprises a heat radiation component connected with an LED chip heat circuit, and further comprises the synthetic double-jet exciter, and an output port of the synthetic double-jet exciter faces the heat radiation component, and outputs synthetic jet flow to cool the heat radiation component. The heat generated by an LED lamp is guided out and dispersed to surrounding air through the heat radiation component, periodic active reinforced heat radiation is carried out on the heat radiation component through the synthetic jet flow output by the synthetic double-jet exciter, air ventilation and exchange are accelerated, and the device has the advantages of being high in heat radiation speed and simple and compact in structure.

Description

technical field [0001] The invention relates to LED lamps, in particular to an LED lamp heat dissipation device based on a synthetic double-jet exciter. Background technique [0002] Based on the current semiconductor manufacturing technology, only about 10% to 20% of the input power of LEDs is converted into light energy, and most of the other energy is converted into thermal energy. Therefore, for LED chips with high power density, how to control their thermal energy is a key issue. The core issues that must be addressed in the manufacture and application of LED lamps. Because high-power LED lamps are usually used in lighting occasions, cost control is very important, and the structural size of the external heat sink is not allowed to be too large. [0003] At present, domestic and foreign research on heat dissipation of LED lamps focuses on the optimization of packaging structure, manufacturing and development of substrate materials, and there are few comprehensive and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V29/02F21Y101/02
Inventor 李玉杰罗振兵王彦红杨瑞邓雄
Owner NAT UNIV OF DEFENSE TECH
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