CN202349965U - High-power integrated light emitting diode (LED) composite finned heat pipe radiator - Google Patents
High-power integrated light emitting diode (LED) composite finned heat pipe radiator Download PDFInfo
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- CN202349965U CN202349965U CN2011205257485U CN201120525748U CN202349965U CN 202349965 U CN202349965 U CN 202349965U CN 2011205257485 U CN2011205257485 U CN 2011205257485U CN 201120525748 U CN201120525748 U CN 201120525748U CN 202349965 U CN202349965 U CN 202349965U
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- heat pipe
- evaporation cavity
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Abstract
The utility model discloses a high-power integrated light emitting diode (LED) composite finned heat pipe radiator, which comprises an evaporation cavity, a heat pipe, a plurality of radiating fins and a flange. The evaporation cavity has a box body structure, the bottom of the evaporation cavity is a joint face jointed with an LED chip, and liquid is accommodated in the evaporation cavity; the heat pipe is obliquely arranged on the top of the evaporation cavity, and the inner part of the heat pipe is communicated with the inner part of the evaporation cavity; the radiating fins have annular structures, a plurality of radiating fins are uniformly arranged on the heat pipe, and each radiating fin is arranged vertically; and the flange is arranged at the bottom of the evaporation cavity and is parallel to the bottom of the evaporation cavity. According to the radiator, heat flow is dissipated by the heat pipe, so that the density of the heat flow is reduced, and the heat produced by the LED chip is uniformly distributed on the radiating fins and dissipated by natural convection; and the radiator has excellent properties of simple structure, energy consumption prevention, long service life, dust accumulation resistance and the like.
Description
Technical field
The utility model relates to a kind of LED street lighting device, relates in particular to a kind of high-power integrated LED composite fin heat pipe radiator.
Background technology
The power savings advantages of LED is obvious, has been widely used in each lighting field, but the LED caloric value is big, and operating temperature is strict, and particularly to cause node temperature too high be the technical bottleneck that restriction LED lamp is applied to the high hot-fluid of high-power integrated LED array.The finished product lamp is many at present forms with single pearl low-power LED array combination, and this mode can effectively be disperseed the higher heat flow density of LED, but complex structure; Area is big; Cause processing, assembling, luminous intensity distribution complicacy, increase the cost of manufacture of LED lamp, and effect does not also reach requirement.The high-power integrated LED chip can be in very little area (2～4cm
2) the huge light emitting diode of integrated quantity, power can reach 200W.Its luminous intensity distribution, assembling are all very simple, but work the time has been gathered high heat flow density, even up to 50W/cm
2, this has just proposed strict requirement to radiator structure.Main settling mode has two kinds: a kind of is that the utilization fan forced convection is taken away big calorimetric, but receives influences such as fan, dust stratification, and the life-span is not long, is easy to lose efficacy.Another kind is that the utilization heat pipe is derived highdensity heat, is distributed to radiating fin uniformly, and with the mode of the free convection heat that sheds, the high hot-fluid of high-power integrated LED array causes that node temperature is too high still to limit applying of LED lamp.
The utility model content
To weak point of the prior art, the utility model provides a kind of better heat-radiation effect, and simple in structure, do not consume energy, the life-span is long, the high-power integrated LED composite fin heat pipe radiator of anti-dust stratification.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme: high-power integrated LED composite fin heat pipe radiator comprises evaporation cavity, heat pipe, radiating fin and flange; Said evaporation cavity is a box body structure, and the bottom surface of evaporation cavity is the binding face of fitting with led chip, carrying liquid in the evaporation cavity; Said heat pipe is obliquely installed the top at evaporation cavity, communicates in the heat pipe with in the evaporation cavity; Said radiating fin is a loop configuration, and radiating fin is a plurality of and is uniformly distributed with and is arranged on the heat pipe that each radiating fin vertically is provided with; Said flange is arranged on the bottom of evaporation cavity and parallel with the bottom of evaporation cavity, and the endoporus of flange is the putting hole of led chip.
As a kind of preferred version of the utility model, the top of said evaporation cavity is provided with a boss, the middle part of boss be provided with one with evaporation cavity in the through hole that communicates, said heat pipe is welded on this boss, communicates through in this through hole and the evaporation cavity in the heat pipe.
Compared with prior art, the high-power integrated LED composite fin heat pipe radiating appliance of the utility model has following advantage:
1, the gravity type heat pipe of special construction and radiating fin composite heat sink combine with lamp housing, strengthen NATURAL CONVECTION COEFFICIENT OF HEAT, effectively increase the air contact area.Experiment shows that this device can be derived the high hot-fluid (37.5W/cm of integrated LED array
2), control its node temperature in 75 ℃ (30 ℃ of environment temperatures), can satisfy the LED lamp heat radiation requirement of single power 200W.
2, the evaporation cavity bottom surface is a smooth flat, can be good at fitting with led chip, has abandoned traditional led chip-heat sink-Heat Transfer of Heat Pipe on Heat Pipe mode, does not have heat sink welding thermal resistance to heat pipe, and heat-conducting area increases by comparison, effectively reduces the thermal resistance between this.
3, stored all working medium in the evaporation cavity, when work, all participated in boiling heat transfer, experiment shows that it can effectively improve boiling heat transfer coefficient, (50W/cm under the input of high heat flux
2), also can control temperature rise below 20 ℃.
4, the flat bottom surface of the evaporation cavity high-power LED chip of can fitting also can be installed a plurality of high-power LED chips.
5, the heat pipe that is in tilted layout under the situation that does not influence the liquid backflow, reduces the height of entire radiator, increases the stability of radiator, conveniently installs and fixes.As as street lamp the time, the heat pipe of its inclination can be used as the part of lamp stand; As the Tunnel Lamp radiator time, the inclined wall in the tunnel of fitting, the convenient layout.
6, the heat pipe that tilts can be arranged vertical radiating fin.Radiating fin can be single annular radiating fin, also spiral radiating fin.Temperature field and velocity field were collaborative when it vertically arranged free convection, helped increasing NATURAL CONVECTION COEFFICIENT OF HEAT.
7, the working environment of this radiator is outdoor, the high-altitude.Environment is abominable, is easy to dust stratification, and is difficult for cleaning.The mode of vertically arranging radiating fin makes that dust is difficult to adhere to, and also can utilize natural weather oneselfs such as rainwater, strong wind to clean.
8, the utility model utilization heat pipe divides sink flows, reduces heat flow density, and the heat that LED is produced is evenly distributed on the radiating fin, distributes through free convection, have simple in structure, do not consume energy, superior functions such as life-span length, anti-dust stratification.
9, this high-power integrated LED composite fin heat pipe radiator can be used for large power road lamp, Tunnel Lamp etc.Its structure can be used in rugged environment, and unique fin arrangement can well prevent dust stratification.Simultaneously, different power can be used the heat pipe of different length and the radiating fin of varying number, and Design and Machining is simple, convenient.
Description of drawings
Fig. 1 is the front view of high-power integrated LED composite fin heat pipe radiator;
Fig. 2 is the structural representation of high-power integrated LED composite fin heat pipe radiator;
Fig. 3 is the upward view of high-power integrated LED composite fin heat pipe radiator.
In the accompanying drawing: 1-evaporation cavity; 2-heat pipe; 3-radiating fin; 4-flange; 5-led chip; 6-boss.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done to describe in further detail.
Like Fig. 1, shown in 2 and 3, high-power integrated LED composite fin heat pipe radiator comprises evaporation cavity 1, heat pipe 2, radiating fin 3 and flange 4.Evaporation cavity 1 is a box body structure, and the bottom surface of evaporation cavity 1 is the binding face of fitting with led chip 5, carrying liquid in the evaporation cavity 1.Heat pipe 2 is obliquely installed at the top of evaporation cavity 1, communicates in the heat pipe 2 with in the evaporation cavity 1.Radiating fin 3 is a loop configuration; Also can be other shapes like square, aciculiform, diametral rib; Radiating fin 3 is for a plurality of (13 radiating fins have only drawn in the accompanying drawing) and be uniformly distributed with and be arranged on the heat pipe 2; Each radiating fin 3 vertically is provided with, and radiating fin 3 can use multiple mode to be connected with heat pipe 2, like modes such as welding, sleeve pipe, expand tubes.Flange 4 is arranged on the bottom of evaporation cavity 1 and parallel with the bottom of evaporation cavity 1, and the endoporus of flange 4 is the containing hole of led chip 5.
Evaporation cavity 1 fuses with the mode of heat pipe 2 through welding, vacuumizes after the welding.The top of evaporation cavity 1 is provided with a boss 6, the middle part of boss 6 be provided with one with evaporation cavity 1 in the through hole that communicates, heat pipe 2 is welded on this boss 6, communicates through in this through hole and the evaporation cavity 1 in the heat pipe 2.Thereby heat pipe 2 strengthens the bonding strength of heat pipe 2 and boss 6 through being connected with evaporation cavity 1 with boss 6 welding.
The utility model is obliquely installed the top at evaporation cavity 1 with heat pipe 2; Each radiating fin 3 vertically is provided with; After falling on heat pipe 2 and the radiating fin 3, dust just can glide along heat pipe 2 and radiating fin 3; Thereby break away from heat pipe 2 and radiating fin 3, the radiator performance that the mode of this vertical layout radiating fin 3 can effectively reduce dust stratification to be brought descends, and strengthens radiating effect.
When using this radiator, led chip 5 is fitted in the bottom of evaporation cavity 1, and the bottom of evaporation cavity 1 is plate, can be good at the led chip of fitting; Flange 4 is connected on the lamp housing through bolt.During work; A large amount of heats that led chip produces are directly passed to the liquid in the evaporation cavity 1 through heat sink (being base plate) of evaporation cavity 1 bottom; Liquid boiling produces steam; Steam condenses on radiating fin 3 through superheater tube 2, and heat passes to radiating fin 3 by the tube wall of heat pipe 2, is being dispersed in the air through free convection.The base plate of evaporation cavity 1 can be good at the led chip of fitting, and can reduce the heat transfer temperature difference of this process effectively the liquid working substance in the heat transferred evaporation cavity 1 of led chip generation; Working medium in the heat pipe 2 brings radiating fin 3 heat in vacuum environment, its thermal resistance is very little, and axial has a narrow range of temperature, and can transmit heat far.Large-sized heat pipe 2 can be arranged more, more large-area radiating fin 3, and can distribute heat uniformly, radiating efficiency is more optimized.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of this patent; And not breaking away from the aim and the scope of patent art scheme, it all should be encompassed in the middle of the claim scope of this patent.
Claims (2)
1. high-power integrated LED composite fin heat pipe radiator is characterized in that: comprise evaporation cavity (1), heat pipe (2), radiating fin (3) and flange (4); Said evaporation cavity (1) is a box body structure, and the bottom surface of evaporation cavity (1) is the binding face of fitting with led chip (5), the interior carrying liquid of evaporation cavity (1); Said heat pipe (2) is obliquely installed at the top of evaporation cavity (1), communicates in the heat pipe (2) with in the evaporation cavity (1); Said radiating fin (3) is a loop configuration, and radiating fin (3) is for a plurality of and be uniformly distributed with and be arranged on the heat pipe (2), and each radiating fin (3) vertically is provided with; Said flange (4) is arranged on the bottom of evaporation cavity (1) and parallel with the bottom of evaporation cavity (1), and the endoporus of flange (4) is the containing hole of led chip (5).
2. high-power integrated LED composite fin heat pipe radiator according to claim 1; It is characterized in that: the top of said evaporation cavity (1) is provided with a boss (6); The middle part of boss (6) be provided with one with evaporation cavity (1) in the through hole that communicates; Said heat pipe (2) is welded on this boss (6), communicates through in this through hole and the evaporation cavity (1) in the heat pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205257485U CN202349965U (en) | 2011-12-15 | 2011-12-15 | High-power integrated light emitting diode (LED) composite finned heat pipe radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205257485U CN202349965U (en) | 2011-12-15 | 2011-12-15 | High-power integrated light emitting diode (LED) composite finned heat pipe radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349965U true CN202349965U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205257485U Expired - Lifetime CN202349965U (en) | 2011-12-15 | 2011-12-15 | High-power integrated light emitting diode (LED) composite finned heat pipe radiator |
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|---|---|
| CN (1) | CN202349965U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494313A (en) * | 2011-12-15 | 2012-06-13 | 重庆大学 | Compact type high-power integrated LED (Light Emitting Diode) composite finned heat pipe radiator |
| WO2014172810A1 (en) * | 2013-04-22 | 2014-10-30 | Guo Chen | High-power led lamp with heat dissipation of heat pipe |
| CN105955427A (en) * | 2015-12-23 | 2016-09-21 | 天津科企融生产力促进有限公司 | High efficiency computer radiator |
| CN113864743A (en) * | 2021-10-21 | 2021-12-31 | 中国科学院工程热物理研究所 | Photo-thermal integrated radiator |
-
2011
- 2011-12-15 CN CN2011205257485U patent/CN202349965U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494313A (en) * | 2011-12-15 | 2012-06-13 | 重庆大学 | Compact type high-power integrated LED (Light Emitting Diode) composite finned heat pipe radiator |
| WO2014172810A1 (en) * | 2013-04-22 | 2014-10-30 | Guo Chen | High-power led lamp with heat dissipation of heat pipe |
| CN105955427A (en) * | 2015-12-23 | 2016-09-21 | 天津科企融生产力促进有限公司 | High efficiency computer radiator |
| CN113864743A (en) * | 2021-10-21 | 2021-12-31 | 中国科学院工程热物理研究所 | Photo-thermal integrated radiator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120725 Effective date of abandoning: 20140521 |
|
| RGAV | Abandon patent right to avoid regrant |