CN201243015Y - Liquid radiating device for high power light-emitting diode - Google Patents

Liquid radiating device for high power light-emitting diode Download PDF

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Publication number
CN201243015Y
CN201243015Y CNU2008200319197U CN200820031919U CN201243015Y CN 201243015 Y CN201243015 Y CN 201243015Y CN U2008200319197 U CNU2008200319197 U CN U2008200319197U CN 200820031919 U CN200820031919 U CN 200820031919U CN 201243015 Y CN201243015 Y CN 201243015Y
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CN
China
Prior art keywords
printed board
cooling fluid
radiator
light
heat conducting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008200319197U
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Chinese (zh)
Inventor
陈雷中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Led Trust Photoelectron Technology Ltd
Original Assignee
Wuxi Led Trust Photoelectron Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuxi Led Trust Photoelectron Technology Ltd filed Critical Wuxi Led Trust Photoelectron Technology Ltd
Priority to CNU2008200319197U priority Critical patent/CN201243015Y/en
Application granted granted Critical
Publication of CN201243015Y publication Critical patent/CN201243015Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a radiating device of a lamp with a high-power LED (light emitting diode) as a light source. The technical scheme is that: a liquid radiating device of the high-power LED comprises a high-power white light LED, a printed board on the back surface of the LED and a radiator; a radiating pad is arranged on a contacting surface of the LED and the printed board; a hole with the same size as the radiating pad is arranged on the printed board; a heat conducting pipe is arranged in the radiator; the heat conducting pipe is communicated with the hole on the printed board; a gap is arranged between the heat conducting pipe and the printed board; cooling fluid is filled in the radiator; by utilizing that the specific gravity of the cooling fluid is different under different temperature, the cooling fluid which passes through the heat conducting pipe is heated and raised, the heat of the cooling fluid which is raised to the top part of the heat conducting pipe is radiated into the air by a radiating rib on the radiator, and the unheated cooling fluid outside the pipe automatically enters the gap between the bottom part of the heat conducting pipe and the printed board, thus forming an automatic cooling fluid cycling system, saving a pump in a traditional cooling device, saving the energy resources and reducing the cost.

Description

The liquid heat radiating device of large-power light-emitting diodes
Technical field
The technical field that the utility model relates to is to be the heat abstractor of the light fixture of light source with the large-power light-emitting diodes.
Background technology
In recent years, the large-power light-emitting diodes performance improves constantly, and its power also constantly increases, and develops the super high power light-emitting diode of 20~100W.Since large-power light-emitting diodes have the luminous power height (60~100Im/W), long characteristics of power consumptive province and life-span, develop the light fixture that various large-power light-emitting diodes are light source, as high light flashlight, mine lamp and various indoor and outdoor illuminating lamp.
Light-emitting diode is the device that a kind of electric energy converts luminous energy to, in the transfer process only about 20% power conversion become luminous energy, about 80% power conversion to become heat energy.The heat of this conversion raises the junction temperature of light-emitting diode, if do not take cooling measure, after then the junction temperature of light-emitting diode surpassed 150 ℃, LED understood overheated and damages.In addition, if the heat abstractor radiating effect that adopts is poor, though junction temperature of light emitting diode be lower than 150 ℃, be unlikely to damage, when junction temperature reaches 100 ℃, can reduce the light emission rate of light-emitting diode, reduce brightness, and the life-span that can reduce light-emitting diode.So the design of its heat abstractor of light fixture that large-power light-emitting diodes is made is crucial.
Traditional liquid cools heat abstractor is to absorb the heat that thermal source produces by heat collector, with the cooling fluid in the heat transferred heat collector, cooling fluid pumps to radiating end by pump, make the heat transferred fin, by fin heat is loose in air again, cooled cooling fluid by pump input heat collector, is cooled off by this liquid circulation again.This type of cooling needs power source and pump, cost height, consumes energy.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of cooling fluid and directly cools off light fixture and the radiating effect better cooling device of large-power light-emitting diodes as light source.
The technical solution of the utility model is: a kind of liquid heat radiating device of large-power light-emitting diodes, comprise high-power white light-emitting diode, the printed board at the light-emitting diode back side, radiator, on light-emitting diode and face that printed board contacts, cooling pad is arranged, printed board is provided with and the identical hole of cooling pad size, be provided with heat pipe in the radiator, the hole that is provided with in heat pipe and the printed board communicates, and between heat pipe and the printed board slit is arranged, and cooling fluid is arranged in the radiator.
One end of radiator is provided with fin, and the gelled end that is provided with of radiator also is provided with bellows, is provided with sealing gasket between radiator and the printed board, and radiator is connected with the screw that is connected between the printed board.
Beneficial effect: the utility model is that the cooling pad of light-emitting diode directly contacts with cooling fluid, heat is directly passed to cooling fluid, thereby obtain better heat exchange, improve radiating efficiency, in addition, the utility model is to utilize the proportion difference of cooling fluid under different temperatures, rise by the cooling fluid that is transferred to heat in the heat pipe, the cooling fluid that rises to the heat pipe top is loose heat in air by the fin on the radiator, slit between heat pipe bottom and the printed board then enters the outer cooling fluid that is not transferred to heat of pipe automatically, form the cooling fluid automatic circulating system, this cooling fluid automatic circulating system has been save the pump in the traditional cold radiator cooler, thereby saved the energy, reduced cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing
Among Fig. 1, the liquid heat radiating device of large-power light-emitting diodes, comprise high-power white light-emitting diode 1, the printed board 2 at the light-emitting diode back side, radiator 3, on light-emitting diode 1 and face that printed board 2 contacts, cooling pad 10 is arranged, printed board 2 is provided with and the identical hole 11 of cooling pad size, be provided with the heat pipe 5 identical in the radiator 3 with light-emitting diode quantity, the hole 11 that is provided with in heat pipe 5 and the printed board 2 communicates, between heat pipe 5 and the printed board 2 slit 12 is arranged, cooling fluid 6 is arranged in the radiator 3, and cooling fluid 6 is that a kind of thermal conductivity is good, non-conductive, non-corrosive liquid.
One end of radiator 3 is provided with fin 13, an end that is provided with fin 13 of radiator 3 also is provided with bellows 4, bellows 4 is established for cooling fluid its volume when the variations in temperature changes, prevent to produce harmful pressure, be provided with sealing gasket 7 between radiator 3 and the printed board 2, be connected with packing ring 8 by screw 9 between radiator 3 and the printed board 2.
Heat radiation process of the present utility model is as follows: large-power light-emitting diodes 1 is when work, heat transferred in its pipe is to cooling pad 10, because printed board 2 is provided with and the identical hole 11 of cooling pad 10 sizes, make cooling pad 10 directly contact with cooling fluid 6, and heat pipe 5 is connected with printed board 2 and communicate with hole 11, so the cooling fluid 6 that is delivered to heat by cooling pad 10 in heat pipe 5 on flow, rise to the liquid cooled heat that is subjected at heat pipe 5 tops, fin 13 by radiator 3 ends looses heat in air, and simultaneously, cold cooling fluid then flows in the heat pipe 5 from the slit 12 of heat pipe 5 and printed board 2, form circulating of cooling fluid, finish the cooling heat dissipation work of light-emitting diode 1.

Claims (5)

1, a kind of liquid heat radiating device of large-power light-emitting diodes, comprise high-power white light-emitting diode (1), the printed board at the light-emitting diode back side (2), radiator (3), it is characterized in that: on described light-emitting diode (1) and face that printed board (2) contacts, cooling pad (10) is arranged, described printed board (2) is provided with and the identical hole (11) of cooling pad size, be provided with heat pipe (5) in the described radiator (3), described heat pipe (5) is gone up the hole (11) that is provided with printed board (2) and is communicated, between described heat pipe (5) and the printed board (2) slit (12) is arranged, cooling fluid (6) is arranged in the described radiator (3).
2, the liquid heat radiating device of large-power light-emitting diodes according to claim 1 is characterized in that: an end of described radiator (3) is provided with fin (13).
3, the liquid heat radiating device of large-power light-emitting diodes according to claim 2 is characterized in that: an end that is provided with fin (13) of described radiator (3) also is provided with bellows (4).
4, the liquid heat radiating device of large-power light-emitting diodes according to claim 1 is characterized in that: be provided with sealing gasket (7) between described radiator (3) and the printed board (2).
5, the liquid heat radiating device of large-power light-emitting diodes according to claim 1 is characterized in that: described radiator (3) is connected with the screw that is connected between the printed board (2).
CNU2008200319197U 2008-03-04 2008-03-04 Liquid radiating device for high power light-emitting diode Expired - Fee Related CN201243015Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200319197U CN201243015Y (en) 2008-03-04 2008-03-04 Liquid radiating device for high power light-emitting diode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200319197U CN201243015Y (en) 2008-03-04 2008-03-04 Liquid radiating device for high power light-emitting diode

Publications (1)

Publication Number Publication Date
CN201243015Y true CN201243015Y (en) 2009-05-20

Family

ID=40716306

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200319197U Expired - Fee Related CN201243015Y (en) 2008-03-04 2008-03-04 Liquid radiating device for high power light-emitting diode

Country Status (1)

Country Link
CN (1) CN201243015Y (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101963337A (en) * 2009-07-21 2011-02-02 富士迈半导体精密工业(上海)有限公司 Lighting device
CN102095115A (en) * 2011-03-22 2011-06-15 东莞市科磊得数码光电科技有限公司 Standardized light emitting diode (LED) light source assembly
AU2009202013B2 (en) * 2009-05-22 2011-11-03 Wen-Sung Hu Thermal Dispersing Structure for LED or SMD LED lights
CN102297405A (en) * 2010-06-22 2011-12-28 侯宗志 Autologous directionless circulatory heat radiating device
WO2012034332A1 (en) * 2010-09-15 2012-03-22 Yang Dongzuo Led integral structure with cooling equipment
CN103423630A (en) * 2012-05-18 2013-12-04 乐利士实业股份有限公司 Light emitting device
CN103547343A (en) * 2012-11-16 2014-01-29 (株)日星 Heat cooling apparatus assembly of LED illuminating device having heat pipe and heat sink
CN105023892A (en) * 2015-06-17 2015-11-04 东莞市闻誉实业有限公司 Chip heat radiator
CN105822917A (en) * 2016-05-24 2016-08-03 江苏天楹之光光电科技有限公司 Heat-dissipation LED lamp
CN106402686A (en) * 2016-11-29 2017-02-15 盐城市新亚自控设备股份有限公司 Cooling device of LED array device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2009202013B2 (en) * 2009-05-22 2011-11-03 Wen-Sung Hu Thermal Dispersing Structure for LED or SMD LED lights
CN101963337A (en) * 2009-07-21 2011-02-02 富士迈半导体精密工业(上海)有限公司 Lighting device
CN102297405A (en) * 2010-06-22 2011-12-28 侯宗志 Autologous directionless circulatory heat radiating device
CN102297405B (en) * 2010-06-22 2013-07-31 侯宗志 Autologous directionless circulatory heat radiating device
WO2012034332A1 (en) * 2010-09-15 2012-03-22 Yang Dongzuo Led integral structure with cooling equipment
CN102095115A (en) * 2011-03-22 2011-06-15 东莞市科磊得数码光电科技有限公司 Standardized light emitting diode (LED) light source assembly
CN103423630A (en) * 2012-05-18 2013-12-04 乐利士实业股份有限公司 Light emitting device
CN103547343A (en) * 2012-11-16 2014-01-29 (株)日星 Heat cooling apparatus assembly of LED illuminating device having heat pipe and heat sink
CN103547343B (en) * 2012-11-16 2016-06-01 (株)日星 Possesses the refrigerating unit assembly of the LED illumination utensil of heat conduction pipe and scatterer
CN105023892A (en) * 2015-06-17 2015-11-04 东莞市闻誉实业有限公司 Chip heat radiator
CN105822917A (en) * 2016-05-24 2016-08-03 江苏天楹之光光电科技有限公司 Heat-dissipation LED lamp
CN106402686A (en) * 2016-11-29 2017-02-15 盐城市新亚自控设备股份有限公司 Cooling device of LED array device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090520

Termination date: 20110304