CN204084267U - Hydrothermomagnetic LED heat abstractor - Google Patents
Hydrothermomagnetic LED heat abstractor Download PDFInfo
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- CN204084267U CN204084267U CN201420017272.8U CN201420017272U CN204084267U CN 204084267 U CN204084267 U CN 204084267U CN 201420017272 U CN201420017272 U CN 201420017272U CN 204084267 U CN204084267 U CN 204084267U
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- Prior art keywords
- hydrothermomagnetic
- led
- radiator
- radiating fin
- heat abstractor
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Abstract
The utility model discloses a kind of hydrothermomagnetic LED heat abstractor, be made up of thermomagnetic convection loop and radiator etc., radiator is installed on below LED chip working region, radiator is made up of the radiating fin be evenly distributed in mutual gap, thermomagnetic convection loop seals is in radiating fin, and thermomagnetic convection loop is made up of materials such as the hydrothermomagnetics of filling in permanent magnet, return duct and pipe.The magnetic material good economy performance that the utility model adopts, structure is simple, the magnetothermal effect of hydrothermomagnetic is utilized to realize heat radiation as the motion of power drive hydrothermomagnetic, as long as LED can work, then can ensure the realization of radiating effect of the present utility model, have extraordinary radiating effect and market using value, the magnetic material that the utility model adopts in addition is permanent magnetism magnetic material, therefore has the feature of life-span high, good reliability.
Description
Technical field
The present invention relates to field of radiating, particularly relate to a kind of hydrothermomagnetic LED heat abstractor.
Background technology
LED, especially in the use procedure of great power LED, can produce a large amount of heats, if these heats can not shed timely, LED will be caused to produce a series of harm such as such as colour rendering declines, life and reliability reduces, forward voltage drop is unstable.And these heats are mainly through chip → base plate for packaging → radiator, this path sheds, and the main method therefore improving LED heat-sinking capability is improved substrate heat dispersion, the external heat sink designing excellent radiation performance or radiator structure etc.There is the feature of radiating effect difference in traditional LED radiator, patent CN102661594A proposes and a kind ofly utilizes air heats rising convection current to improve the LED heat abstractor of radiating effect, although this invention has certain radiating effect, but its LED lamp must be positioned at below radiator, constrain the application of this invention in essence; Although patent CN102128436A considers to adopt magnetic fluid heat radiation, but its device producing magnetic field is pulsed magnetic generator, do not catch up with the life-span of LED lamp the pulsed magnetic generator life-span far away, simultaneously complex structure, price are high, are difficult to the demand meeting market.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of hydrothermomagnetic LED heat abstractor is provided, utilize the magnetization gradient difference that hydrothermomagnetic is produced by variations in temperature, hydrothermomagnetic is driven to move along the high direction low to the intensity of magnetization of the intensity of magnetization in thermomagnetic convection loop, heat, along in thermomagnetic convection looping motion process, is passed to radiating fin die terminals far away by hydrothermomagnetic, thus expands radiating fin efficiently radiates heat area, improve the radiating effect of LED, finally improve LED service life.
For technical scheme of the present invention is: hydrothermomagnetic LED heat abstractor, be made up of thermomagnetic convection loop and radiator, radiator is positioned at below LED chip working region, radiator is made up of the heat dissipation metal fin in mutual gap, thermomagnetic convection loop seals is in radiating fin, thermomagnetic convection loop is by permanent magnet, return duct, the materials such as hydrothermomagnetic are formed, permanent magnet is positioned at nearly chip operation region portion, side, thermomagnetic convection loop is embedded in strip, hydrothermomagnetic is filled in return duct, thermomagnetic convection loop path is in the middle part of the nearly die terminals of radiating fin (permanent magnet) → radiating fin → radiating fin die terminals → radiating fin far away in the middle part of → the nearly die terminals of radiating fin (permanent magnet), hydrothermomagnetic is filled in this convection loop.
When LED does not work, the intensity of magnetization that hydrothermomagnetic is subject to permanent magnet is more even; During LED work, produce a large amount of heats, heat sheds primarily of chip → this path of base plate for packaging → radiator, when heat passes to along base plate for packaging the hydrothermomagnetic being positioned at radiating fin immediately below it, the intensity of magnetization that the hydrothermomagnetic be heated is subject to magnet reduces, and the intensity of magnetization that the hydrothermomagnetic of die terminals far away is subject to permanent magnet does not reduce, therefore hydrothermomagnetic produces a magnetization gradient difference due to magnetothermal effect, and this gradient difference can drive hydrothermomagnetic to move along the high direction low to the intensity of magnetization of the intensity of magnetization in return duct; The path flow through due to hydrothermomagnetic is in the middle part of the nearly die terminals of radiating fin (permanent magnet) → radiating fin → radiating fin die terminals → radiating fin far away in the middle part of → the nearly die terminals of radiating fin (permanent magnet), by the continuous flowing of hydrothermomagnetic, hydrothermomagnetic takes the heat be subject in the nearly die terminals of radiating fin to radiating fin die terminals far away, thus effectively increase the actual area of dissipation of radiating fin, promote the radiating effect of LED.
Better technique effect is played for making the present invention:
Further technical scheme is above-mentioned thermomagnetic convection loop can be the multiple distribution modes such as vertical and horizontal are uniformly distributed in radiating fin, and described thermomagnetic convection loop is through radiating fin.
Further technical scheme can increase such as fan, microjet, interpolation peltier-element etc. outside above-mentioned radiating fin to improve radiating effect further.
Further technical scheme can increase the additive such as non magnetic micro particles, low boiling solution in above-mentioned hydrothermomagnetic to improve heat radiation further, utilize the program, the magnetization gradient difference that hydrothermomagnetic is subject in radiation processes will increase further, thus accelerate the flowing velocity of hydrothermomagnetic, improve radiating effect.
The beneficial effect adopting technique scheme to produce is: magnetic material good economy performance of the present invention, structure is simple, the magnetothermal effect of hydrothermomagnetic is utilized to realize heat radiation as the motion of power drive hydrothermomagnetic, as long as LED can work, then can ensure the realization of radiating effect of the present invention, have extraordinary radiating effect and market using value, the magnetic material that the present invention adopts in addition is permanent magnetism magnetic material, therefore has the feature of life-span high, good reliability.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described.
Fig. 1 is front view of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Detailed description of the invention
Under in order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is described in more detail.Should be appreciated that detailed description of the invention described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 and Fig. 2 shows structure of the present invention, composition graphs 1 is known with Fig. 2: a kind of hydrothermomagnetic LED heat abstractor, comprise lampshade 1, described lampshade 1 is seal-installed on LED chip 3 upper end, and cover in LED chip 3 completely, described LED chip 3 is installed on to be had on the base plate for packaging 4 of good thermal conductivity, described base plate for packaging 4 is installed on radiator 2, described radiator 2 comprises the support column 7 with through hole and is made up of the heat dissipation metal fin 6 that is evenly distributed in some mutual gaps, described radiating fin 6 inside is containing thermomagnetic convection loop, described thermomagnetic convection has return duct 5, hydrothermomagnetic (not shown) is filled with in return duct 5, described thermomagnetic convection loop also comprises the magnet 9 being installed on nearly chip 3 side of radiating fin 6, described magnet 9 inside has passage 8, described passage 8 is with return duct 5 path size in thermomagnetic convection loop and move towards consistent.
Radiating principle of the present invention is: when LED chip 3 does not work, and the intensity of magnetization that hydrothermomagnetic (not shown) is subject to magnet 9 is more even, when LED chip 3 works, produce a large amount of heats, heat sheds primarily of this path of chip 3 → base plate for packaging 4 → radiator 2, when heat passes to along base plate for packaging 4 the hydrothermomagnetic (not shown) being positioned at radiating fin 6 immediately below it, the intensity of magnetization that the hydrothermomagnetic be heated is subject to magnet 9 reduces, and the intensity of magnetization that the hydrothermomagnetic of chip 3 end far away is subject to magnet 9 does not reduce, therefore hydrothermomagnetic (not shown) produces a magnetization gradient difference due to magnetothermal effect, this gradient difference can drive hydrothermomagnetic (not shown) to move along the high direction low to the intensity of magnetization of the intensity of magnetization in return duct 5, the path flow through due to hydrothermomagnetic is in the middle part of nearly chip 3 end (the magnet 9) → radiating fin 6 of radiating fin 6 → radiating fin 6 chip 3 ends → radiating fin 6 far away in the middle part of → nearly chip 3 end (magnet 9) of radiating fin 6, by the continuous flowing of hydrothermomagnetic, hydrothermomagnetic takes the heat be subject at nearly chip 3 end of radiating fin 6 to radiating fin 6 chip 3 end far away, thus effectively increase the actual area of dissipation of radiator 2, promote the radiating effect of LED.
The above is only preferred embodiment of the present invention.Should be understood that for member of ordinary skill in the art; under technology enlightenment provided by the present invention; other equivalent modifications or improvement can also be made; such as thermomagnetic convection loop is uniformly distributed in vertical and horizontal in radiating fin; non magnetic micro particles, low boiling solution is added in hydrothermomagnetic; increase such as fan, microjet, interpolation peltier-element etc. outside radiating fin, also should be considered as protection scope of the present invention.
Claims (5)
1. a hydrothermomagnetic LED heat abstractor, it is characterized in that, described hydrothermomagnetic LED heat abstractor mainly comprises radiator and the thermomagnetic convection loop with permanent magnet, and described thermomagnetic convection loop comprises the hydrothermomagnetic in permanent magnet and loop pipe and pipe and is arranged in described radiator.
2. hydrothermomagnetic LED heat abstractor according to claim 1, is characterized in that, described radiator is positioned at below LED chip working region, and described radiator comprises the heat dissipation metal fin in mutual gap.
3. hydrothermomagnetic LED heat abstractor according to claim 1, is characterized in that, described thermomagnetic convection loop is through radiating fin.
4. hydrothermomagnetic LED heat abstractor according to claim 2, is characterized in that, described hydrothermomagnetic is the fluid with magnetothermal effect.
5. hydrothermomagnetic LED heat abstractor according to claim 2, is characterized in that, described permanent magnet is strip and is positioned at nearly chip operation region, thermomagnetic convection loop lower portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017272.8U CN204084267U (en) | 2014-01-13 | 2014-01-13 | Hydrothermomagnetic LED heat abstractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017272.8U CN204084267U (en) | 2014-01-13 | 2014-01-13 | Hydrothermomagnetic LED heat abstractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204084267U true CN204084267U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420017272.8U Expired - Fee Related CN204084267U (en) | 2014-01-13 | 2014-01-13 | Hydrothermomagnetic LED heat abstractor |
Country Status (1)
| Country | Link |
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| CN (1) | CN204084267U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135390A (en) * | 2015-09-30 | 2015-12-09 | 上海理工大学 | Heat radiating device |
| CN108386737A (en) * | 2017-07-14 | 2018-08-10 | 漳州立达信光电子科技有限公司 | A kind of LED light and lighting system |
| CN109668128A (en) * | 2019-03-04 | 2019-04-23 | 上海应用技术大学 | A kind of great power LED cooling system to be radiated using ferrofluid |
-
2014
- 2014-01-13 CN CN201420017272.8U patent/CN204084267U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135390A (en) * | 2015-09-30 | 2015-12-09 | 上海理工大学 | Heat radiating device |
| CN105135390B (en) * | 2015-09-30 | 2018-07-27 | 上海理工大学 | Radiator |
| CN108386737A (en) * | 2017-07-14 | 2018-08-10 | 漳州立达信光电子科技有限公司 | A kind of LED light and lighting system |
| CN109668128A (en) * | 2019-03-04 | 2019-04-23 | 上海应用技术大学 | A kind of great power LED cooling system to be radiated using ferrofluid |
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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: 20150107 Termination date: 20180113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |