CN202973011U - LED (light emitting diode) radiator applying phase-change material - Google Patents
LED (light emitting diode) radiator applying phase-change material Download PDFInfo
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- CN202973011U CN202973011U CN2012206494656U CN201220649465U CN202973011U CN 202973011 U CN202973011 U CN 202973011U CN 2012206494656 U CN2012206494656 U CN 2012206494656U CN 201220649465 U CN201220649465 U CN 201220649465U CN 202973011 U CN202973011 U CN 202973011U
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- radiator
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Abstract
The utility model relates to an LED (light emitting diode) radiator applying phase-change material. The LED radiator comprises a hollow pipe body, wherein one phase-change material layer is filled in the hollow pipe body, and the outer circumference surface of the hollow pipe body is provided with a plurality of cooling fins. According to the LED radiator applying the phase-change material, the temperature of the LED is still kept to be not higher than the set temperature during working, the normal work of the LED can be guaranteed by the extremely strong heat storage capability of the phase-change material, the volume of the radiator can be effectively reduced due to the fact that the cooling time is prolonged, and the cost is lowered.
Description
Technical field
The utility model relates to a kind of LED radiator, is specifically related to a kind of LED radiator of using phase-change material, belongs to LED illuminating product technical field.
Background technology
LED is as a kind of novel lighting, and it is obvious to all in the advantage aspect energy-conservation, is worth promoting.
But LED only only has 1/3 energy can be transformed into visible light in when work, and remainder can become heat.LED is because single light-emitting area is narrow, and large-scale integrated in the circuit board, forms a larger light emitting source usually, can cause thus the amount of heat accumulation, causes temperature to raise.Too high temperature not only can make the decrease in efficiency of LED, accelerates the aging of LED, reduces the life-span, and height can directly burn out circuit board, broken ring whole system to a certain extent.Although therefore its efficient of LED is much higher than ordinary incandescent lamp, its heat radiation is still a major issue.
For low power LED, usually module directly is fixed on Section Bar Heat Sinks, be used for strengthening area of dissipation, carry out Natural Heat Convection with air in environment.But along with the increase of LED range of application, progressively use in occasions such as industrial and mineral, squares, power improves constantly, and therefore heat radiation is proposed higher requirement.
Therefore, for solving the problems of the technologies described above, necessaryly provide a kind of LED radiator with structure improved using phase-change material, to overcome described defective of the prior art.
The utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of LED radiator of using phase-change material of simple in structure, good heat dissipation effect.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of LED radiator of using phase-change material, it comprises a hollow tube, fills a full phase-change material layers in described hollow tube, is provided with some fin in the outer circumference surface of described hollow tube.
The LED radiator of using phase-change material of the present utility model further is set to: described phase-change material layers is specially paraffin layer, and its phase transition temperature is between 20 ℃ to 60 ℃.
The LED radiator of using phase-change material of the present utility model also is set to: described each fin stretches out along the diametric(al) of hollow tube.
Compared with prior art, the utlity model has following beneficial effect: the LED radiator of using phase-change material of the present utility model can make LED when work temperature all the time not higher than design temperature, the superpower heat storage capacity of phase-change material layers not only can guarantee the normal operation of LED, and due to the heat radiation time prolongation, can effectively reduce the volume of radiator, reduce costs.
Description of drawings
Fig. 1 is the sectional drawing of the LED radiator of using phase-change material of the present utility model.
Fig. 2 is the top view of the LED radiator of using phase-change material of the present utility model.
The specific embodiment
See also shown in Figure of description 1 and accompanying drawing 2, the utility model is a kind of LED radiator of using phase-change material, and its bottom is equipped with a LED module 9.
Described LED radiator comprises a hollow tube 1, in the full phase-change material layers 2 of the interior filling of described hollow tube 1.In the present embodiment, 2 layers of described phase-change materials are specially paraffin layer 2, and its phase transition temperature certainly, also can adopt other phase-change materials between 20 ℃ to 60 ℃.Because the ablation heat of phase-change material is very high, the heat that absorbs when phase-change material is completed phase transformation can make the temperature of the aluminium of equal quality raise 220 ℃.
Outer circumference surface in described hollow tube 1 is provided with some fin 3.Each fin 3 stretches out along the diametric(al) of hollow tube 1.
The operation principle of the LED radiator of using phase-change material of the present utility model is as follows: in the time of LED module 9 work, the phase-change material layers 2 in hollow tube 1 is heated, and temperature rises.But when temperature rose to phase transformation temperature points, whole temperature no longer rose, and after this a period of time, phase-change material layers 2 constantly absorbs heat, becomes liquid phase from solid phase gradually, also transfers heat to fin 3 simultaneously and dispels the heat, until reach equalized temperature.After LED module 9 quit work, the heat of phase-change material layers 2 the insides was dispersed in air by fin 3 gradually, and itself also progressively becomes solid phase from liquid phase, until temperature reaches consistent with environment temperature.
The above specific embodiment is only the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within make any modification, be equal to replacement, improvement etc., within all should being included in the protection domain of this creation.
Claims (3)
1. the LED radiator of a using phase-change material is characterized in that: comprise a hollow tube, fill a full phase-change material layers in described hollow tube, be provided with some fin in the outer circumference surface of described hollow tube.
2. the LED radiator of using phase-change material as claimed in claim 1, it is characterized in that: described phase-change material layers is specially paraffin layer, its phase transition temperature at 20 degree between 60 degree.
3. the LED radiator of using phase-change material as claimed in claim 1, it is characterized in that: described each fin stretches out along the diametric(al) of hollow tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206494656U CN202973011U (en) | 2012-12-01 | 2012-12-01 | LED (light emitting diode) radiator applying phase-change material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206494656U CN202973011U (en) | 2012-12-01 | 2012-12-01 | LED (light emitting diode) radiator applying phase-change material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202973011U true CN202973011U (en) | 2013-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206494656U Expired - Fee Related CN202973011U (en) | 2012-12-01 | 2012-12-01 | LED (light emitting diode) radiator applying phase-change material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202973011U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994349A (en) * | 2014-05-04 | 2014-08-20 | 杭州杭科光电股份有限公司 | LED bulb lamp with high lighting efficiency |
| CN104235800A (en) * | 2014-09-15 | 2014-12-24 | 西安交通大学 | Phase change temperature control device for intermittent high-power LED (light-emitting diode) |
-
2012
- 2012-12-01 CN CN2012206494656U patent/CN202973011U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994349A (en) * | 2014-05-04 | 2014-08-20 | 杭州杭科光电股份有限公司 | LED bulb lamp with high lighting efficiency |
| CN104235800A (en) * | 2014-09-15 | 2014-12-24 | 西安交通大学 | Phase change temperature control device for intermittent high-power LED (light-emitting diode) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141201 |
|
| EXPY | Termination of patent right or utility model |