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LED light-emitting module with liquid metal heat dispersion heat sink

A liquid metal, light-emitting module technology, applied in the direction of electric solid devices, semiconductor devices, electrical components, etc., can solve problems such as the advent of high-power LED products, and achieve the effects of simple structure, low noise and convenient maintenance

Active Publication Date: 2010-07-07
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of this, there are few formed high-power LED products in the domestic and foreign markets.

Method used

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  • LED light-emitting module with liquid metal heat dispersion heat sink
  • LED light-emitting module with liquid metal heat dispersion heat sink
  • LED light-emitting module with liquid metal heat dispersion heat sink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] figure 1 It is a structural schematic diagram of the LED light-emitting module with liquid metal heat dissipation heat sink of the present invention, and it is also an embodiment of the present invention; Picture 1-1 for figure 1 A-A cross-sectional schematic diagram of ; Figure 1-2 for figure 1 B-B cross-sectional schematic diagram when the middle light-emitting module 1 and the heat sink flat plate 2 are manufactured separately; Figure 1-3 for figure 1 The C-C cross-sectional schematic diagram of ; Figure 1-4 for figure 1 The B-B cross-sectional schematic diagram of the middle light-emitting module 1 and the heat sink flat plate 2 when they are made into an integrated structure; it can be seen from the figure that the LED light-emitting module with liquid metal heat dissipation heat sink of the present invention includes:

[0037] An LED light-emitting module 1; the LED light-emitting module 1 can be directly processed from the market after purchasing basic ...

Embodiment 2

[0054] attached figure 2 , diagram 2-1 and Figure 2-2 It is a structural schematic diagram of another embodiment of the present invention. As can be seen from the figure, all structures of this embodiment are the same as those of Embodiment 1 except for the difference of adopting multiple parallel hollow runners 4, so in appearance figure 2 with the aforementioned figure 1 unanimous. At this time, the cross-section of the hollow flow channel 4 is circular, and the radius can be 10nm-1cm. At this time, the number of multi-strand hollow flow channels 4 at the place where the heat sink flat plate corresponds to the LED light-emitting module can be between 1 and 1000; The advantage is that, on the one hand, the amount of liquid metal fluid can be reduced and the cost of heat sink can be reduced; on the other hand, the flow of fluid in this hollow flow channel can achieve the maximum heat transport capacity.

[0055] In the present invention, the nano- and micron-scale holl...

Embodiment 3

[0057] attached image 3 It is a structural schematic diagram of yet another embodiment of the present invention. As can be seen from the figure, all structures of this embodiment are the same as those of Embodiment 1 except that the driving direction of the driving pump (electromagnetic pump) is changed. The drive can be used to drive the flow of the liquid metal fluid in different directions and structures, so as to complete the delivery of LED heat to different directions or locations. For example, in this embodiment, the liquid metal fluid mainly flows along a direction perpendicular to the LED light-emitting module; while in Embodiment 1 or 2, the liquid metal fluid mainly flows along a direction parallel to the LED light-emitting module. The reason why such a structure is adopted in this embodiment is mainly considering that in some occasions, when the size of the LED light-emitting module is limited in the lateral direction, the heat can be transported to the direction ...

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Abstract

The invention relates to a light-emitting module with a liquid metal heat dispersion heat sink, comprising a heat sink flat sheet, an LED light-emitting module arranged on the heat sink flat sheet and at least one driving pump, wherein at least one hollow flow passage is arranged in the heat sink flat sheet, and liquid metal fluid flows in the hollow flow passage; the LED light-emitting module isformed by integrating 1-5000 light-emitting chips; the driving pump consists of a pair of electrode plates respectively installed on a wall surface opposite to each hollow flow passage and a pair of permanent magnet sheets respectively and horizontally arranged on the upper surface and the lower surface of the heat sink flat sheet opposite to each hollow flow passage; the large planes of the pairof electrode plates are perpendicular to the large planes of the pair of permanent magnet sheets; and electrode leads of the pair of electrode plates are led out through pinholes in the wall surface of the hollow flow passage and are electrically connected with an external delay switch module. The electromagnetic pump drives the liquid metals in the hollow flow passage to flow so that LED heat can be transferred to the periphery of the heat sink to be discharged and dissipated. The LED light-emitting module has the advantages of high reliability, no need of maintenance, low noise, energy saving, environmental protection, and the like.

Description

technical field [0001] The invention relates to a light-emitting module, in particular to an LED light-emitting module with a liquid metal heat dissipation heat sink. The LED light-emitting module drives the flow of the liquid metal by means of a micro-pump to quickly transfer heat from the center of the LED base to the surroundings of the heat sink. Background technique [0002] In recent years, with the aggravation of the energy crisis, and the rapid development of urban construction and electronic information industry, LED light source is due to its good color rendering, energy saving, fast response, frequent switching, low-voltage DC power supply, long service life and strong structure. Shock and vibration resistance, light weight, use of raw materials without toxic substances, safety and environmental protection, etc., have become luminaires with large-scale promotion value and great significance for energy saving. They can not only be widely used in film and television ...

Claims

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Application Information

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IPC IPC(8): H01L33/48H01L33/64H01L25/075
Inventor 刘静周一欣邓月光
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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