CN206329930U - A kind of cooling device of LED array device - Google Patents
A kind of cooling device of LED array device Download PDFInfo
- Publication number
- CN206329930U CN206329930U CN201621299820.6U CN201621299820U CN206329930U CN 206329930 U CN206329930 U CN 206329930U CN 201621299820 U CN201621299820 U CN 201621299820U CN 206329930 U CN206329930 U CN 206329930U
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- radiating
- heat
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- led array
- condensation
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Abstract
A kind of cooling device of LED array device, including multiple tubular evaporators, condensation chamber, radiating Qi Pianhe centers radiating qi piece；Condensation chamber includes the columnar body and circular cover plate of upper shed；The circular cover includes the taper condensation top of indent, and multiple radiating qi pieces are located in taper condensation top；The tubular evaporator spaced array is arranged on the body base plate of condensation chamber；The tubular evaporator passing through substrate is extended between LED array；Tubular evaporator is built with can phase transformation working media；Radiating qi piece in center is fixedly connected at the top of the radiating part, the center radiating qi piece includes center heat-conducting part, bridge portion and the heat transfer flange of integrally connected, the heat transfer flange is fixed on the installing plate of the lighting device, and the center heat-conducting part is fixedly connected with the radiating part.The cooling device of the LED array device, at low cost, solves rapid radiating, the technical barrier of Homogeneouslly-radiating simple in constructionly.
Description
Technical field
The utility model is related to the technical field of LED array device, and in particular to a kind of cooling dress of LED array device
Put.
Background technology
LED shines, small power consumption, work as a kind of active selfluminous element as the solid-state light of do not burn filament or gas
Voltage is low, luminosity is high, long working life, performance are stable, can work in extreme circumstances and the characteristics of performance degradation very little
And be widely applied, multi shadow, LED tight clusters, i.e. LED array device are reduced when assembling due to multiple LED
Arise at the historic moment.LED array device is the height for the microsize that High Density Integration arrangement is carried out on same epitaxial substrate material
The two-dimensional array of Light-Emitting Diode tube core, each LED is the great power LED that power is more than 0.5W.And work as LED extremely closely
Overheat occurs during aggregation, long-term illumination is used, and the LED of array center will be warmmer than the LED being arranged on side, can be to LED
Performance and useful life have detrimental effect.
Radiating qi piece, pressure streaming draught fan and special aluminium are installed generally by substrate back in the prior art
Heat sink processed is come the heat that shed from the LED of tight clusters.Heat dissipating layer such as is installed below in the positive LED mounting seats of substrate,
But heat is transferred to the heat dissipating layer of substrate by LED seat, then conducted by heat dissipating layer to the back side of substrate by fan airstream handle
Heat is taken away, and so attempts by being radiated from the pressure air-flow of substrate back.Because the heat that front is produced can only be from the back side
Take away, so radiating efficiency is poor, this have impact on the service life of LED array device to a certain extent.Also have and worn using multiple
It is located at the copper pipe on substrate in the clearance space of LED array to radiate, but needs substrate back to set and force streaming ventilation
Fan could meet cooling cooling requirements.Which results in forcing the power consumption of streaming draught fan to greatly increase, also increase
Manufacturing cost.
Meanwhile, the LED on substrate in order to cool down tight clusters causes to manufacture LED and the expense increase using LED.Than
Such as, the cooled pressure streaming draught fan of the electricity cost more than 70% of LED array device expends.Added in manufacturing process
Heat dissipating layer also increases the cost of LED array device.
Then, the heat of how inexpensive, expeditiously transfer tight clusters LED array devices, is promoted as industry
The problem of LED array device general character urgently to be resolved hurrily.
Utility model content
For defect present in above-mentioned prior art, the purpose of this utility model is to provide a kind of storage LED array device
The cooling device of part, is efficiently radiated with the very low cost for not expending electric energy for substrate.
The purpose of this utility model is achieved in that a kind of cooling device of LED array device, including multiple tubular steamings
Send out device, condensation chamber, radiating Qi Pianhe centers radiating qi piece；
Condensation chamber includes the columnar body and circular cover plate of upper shed；The circular cover includes the taper of indent
Condensation top, multiple radiating qi pieces are located in taper condensation top is divided into two funtion parts by cover plate, condenses and pushes up positioned at taper
The radiating qi piece part in subordinate portion is condensation part, and the radiating qi piece part for condensing top top positioned at taper is radiating part；
The tubular evaporator spaced array is arranged on the body base plate of condensation chamber；The tubular evaporator passes through LED
The substrate of array device is extended between LED array；Tubular evaporator is built with can phase transformation working media；
Radiating qi piece in center is fixedly connected at the top of the radiating part, the center radiating qi piece includes the center of integrally connected
Heat-conducting part, bridge portion and heat transfer flange, the heat transfer flange are fixed on the installing plate of the lighting device, the center heat-conducting part
It is fixedly connected with the radiating part.
Further, the center heat-conducting part is multiple heat conduction qi pieces, and the heat conduction qi piece is integrally molded in the radiating
The top of qi piece, the heat conduction circular diameter that multiple heat conduction qi pieces are constituted arrives the 1/2 of substrate diameter for the 1/3 of substrate diameter.
Further, the tubular evaporator includes body, and the body includes blind end and open end, and openend passes through
Mounting seat is fitted on the base plate of the body of the condensation chamber.
Further, the tubular evaporator includes body, and the body is closed at both ends, the built-in conduction oil of condensation chamber, institute
State the condensation part that heat conduction oil level at least contacts the radiating qi piece.
Further, qi piece is radiated by same rapid thermal conduction in tubular evaporator, condensation chamber, radiating Qi Pianhe centers
Material is made.
Further, the condensation part is generally located at least one of the top of the tubular evaporator provided with water conservancy diversion downwards
Individual first guiding gutter.
Further, the inner surface at the top of taper condensation is interval with multiple second guiding gutters with vertex of a cone Central Symmetry.
Further, heat-conducting layer is provided between the substrate of the LED array device and multiple LED light-emitting component arrays, is led
Multiple LED light-emitting component arrays are fixedly mounted on thermosphere, the heat-conducting layer is just fixedly connected with heat conduction to LED light-emitting component position
Body, the heat carrier includes the heating column and heat conduction cap of integrally connected, and heating column passing through substrate is connected with heat-conducting layer, heat conduction cap with
The bottom contact of condensation chamber body.
Further, the external cylindrical surface of body is interval with multiple fins, and the inner cylinder face correspondence fin of body is provided with more
Individual groove.
Further, tube body wall is provided with rectangular observation window, and observation window lower edge is located at the 1/4 of tubular evaporator height
Place.
The cooling device of the LED array device, solved by following technical spirit " how low cost, expeditiously
The technical problem of the heat of the LED array device of transfer tight clusters "：
1) contact heat conductien approach：LED light-emitting component base delivers heat to heat-conducting layer, and heat-conducting layer is transmitted to condensation by heat carrier
The base plate of room body；Base plate transfers heat to top cover, and top cover is radiated by the qi piece that radiates；
2) phase-change heat transfer approach：Heat radiant heat transfer in the positive LED gathering groups of substrate is tubular to tube shaped radiator 1
In radiator can phase transformation working media gaseous state be changed into by liquid absorb heat, gaseous working medium risen in condensation chamber,
Condensation part 3.1 is changed into liquid from gaseous state, and heat release transfers heat to condensation part 3.1, the heat transfer of condensation part 3.1 to radiating part
3.2, radiating part 3.2 distributes heat；
The synergy of above two sinking path so that the heat in the heat and LED gathering groups of LED light-emitting component base
Amount is distributed rapidly, removes necessity using forced heat radiation fan from, simple in construction, easy to maintenance, substantially increases heat transfer efficiency.
For the temperature gradient distribution of LED gathering groups " central temperature is higher than peripheral temperature ", following technological means is employed
Accomplish Homogeneouslly-radiating：
1) opening of multiple tubular evaporators rectify to be that the taper of indent condenses top, gaseous working media rises
It is condensed room top cover blocks and stops, gas condenses in taper condensed in top inner surface and condensation part respectively, taper condensation top
The liquid working media that portion's inner surface condenses is gathered the vertex of a cone by the second guiding gutter and dripped, and condensed liquid work is situated between on condensation part
Matter is dripped by the first guiding gutter.Second water conservancy diversion slot length is more than the first water conservancy diversion flute length, so vertex of a cone dripping compares condensation part
Dripping temperature is low, is more beneficial for center LED radiating.When can phase transformation working media lack when, positioned at aggregation center
Tubular evaporator more will not first lack, and the tubular evaporator for being always located in assembling periphery first lacks working media, this favourable guarantor
Protect the LED at aggregation center.
2) design of center radiating qi piece, core heat is conducted to installing plate by heat exchange pattern；So,
The temperature in the centre of condensation chamber top cover is lower than the peripheral part temperature of top cover, and more condensing gaseous state in centre steams
Vapour, has facilitation to the phase-change heat-exchange in centre, it is easier to dissipate the LED heat for assembling center.
Center radiate qi piece and taper condensation at the top of synergy so that two kinds of sinking paths all perform to it is ultimate attainment, and
Therefore the technical purpose of Homogeneouslly-radiating is reached.
The utility model compared with prior art, exactly because heat conduction path and can phase-change heat transfer approach collaboration knot
Close so that eliminate the use of forced air supply fan, at low cost, rapid radiating, Homogeneouslly-radiating are solved simple in constructionly
Technical barrier, electricity consumption does not increase, and has saved radiating cost, has accomplished inexpensive, efficient to distribute heat.
Brief description of the drawings
Fig. 1 is a kind of main sectional view of the cooling device of LED array device of the utility model.
Fig. 2 is a kind of top view of the cooling device of LED array device of the utility model.
Fig. 3 is a kind of cross-sectional view of the tubular evaporator of the cooling device of LED array device of the utility model.
Reference in above-mentioned figure：
100LED array devices, 101 substrates, 101.1 through holes, 102LED light-emitting components, 103 lens
1 tubular evaporator, 2 condensation chambers, 3 radiating qi pieces, 4 centers radiating qi piece
1.1 bodys, 1.2 mounting seats, 1.3 observation windows
2.1 bodies, 2.2 cover plates, 2.3 mounting holes
2.21 fit sealing portions, 2.22 tapers condensation top, 2.23 second guiding gutters
3.1 condensation parts, 3.2 radiating parts, 3.3 first guiding gutters
4.1 center heat-conducting parts, 4.2 bridge portions, 4.3 heat transfer flanges
Embodiment
Embodiment of the present utility model is elaborated below in conjunction with accompanying drawing, but is not limited to model of the present utility model
Enclose.
Embodiment 1
As illustrated, LED array device 100, which includes substrate 101, the array of multiple LED light-emitting components 102, is arranged on substrate
On 100；One lens 103 is installed in each LED light-emitting component 102, to orient the light from LED light-emitting component.
A kind of cooling device of LED array device, including multiple tubular evaporators 1, condensation chamber 2 and radiating qi piece 3；Condensation
Room 2 includes the columnar body 2.1 and circular cover plate 2.2 of upper shed, and the spiral of cover plate 2.2 is fixed on body 2.1.Body
Base plate be provided with multiple mounting holes 2.3；The tubular evaporator 1 is made up of rapid thermal conduction material, such as copper, aluminium alloy or stone
The material of black alkene or other high thermal conductivity coefficients.The tubular evaporator 1 is arranged on the mounting hole 2.3 of the base plate of condensation chamber 2；Institute
Stating tubular evaporator 1 includes body 1.1, and the body 1.1 includes blind end and open end, and openend is fixedly connected mounting seat
1.2；The preferred semicircle of blind end is spherical or planar shaped or other three-dimensional decorative moulding；The LED hairs of multiple arrays on the substrate 101
Space array between optical element 102 has multiple through holes 101.1.The tubular evaporator 1 is arranged on through the through hole 101.1
Between LED array.
In the tubular evaporator 1 equipped with can phase transformation working media；In tubular evaporator 1 can phase transformation working media
Groundwater increment is the 12-25% of the tubular cumulative volume of evaporator 1；The most preferably tubular cumulative volume of evaporator 1 of the groundwater increment of working media
15%.
The part that tubular evaporator 1 is located at substrate bottom is evaporator section, and the part positioned at the through hole 101.1 of substrate 101 is
Isolation section, the wall of body 1.1 of tubular evaporator 1 is provided with rectangular observation window 1.3, and the lower edge of observation window 1.3 is located at tubular steam
At send out the height of device 1 1/5；By observation window 1.3 can be observed can phase-change liquid liquid level, if internal liquid level be less than observation window
Lower edge, then surface working media is on the low side, it is necessary to supplement working media.
The circular cover 2.2 of the condensation chamber 2 has the taper condensation top 2.22 of fit sealing portion 2.21 and indent, institute
It is 135 ° -155 ° to state the circular cone drift angle at the top of taper condensation, and the inner surface at the top of taper condensation is set with vertex of a cone Central Symmetry interval
There are multiple second guiding gutters 2.23.
It is equipped with multiple radiating qi pieces 3 side by side in the circular cover 2.2 of condensation chamber 2, the radiating qi piece 3 includes condensation
Portion 3.1 and radiating part 3.2, the condensation part 3.1 are generally located at the of the top of the tubular evaporator 1 provided with water conservancy diversion downwards
One guiding gutter 3.3.
Also include center radiating qi piece 4, the center radiating qi piece 4 has center heat transfer portion 4.1, bridge portion 4.2 and heat transfer
Flange 4.3, the heat transfer flange 4.3 is fixed on the installing plate of the lighting device.The center fixing part 4.1 is welded on scattered
In hot portion 3.2, heat transfer flange 4.3 is fixed on a mounting board.
Due to the air radiating of center radiating qi piece 4 and from center heat-conducting part 4.1 to bridge portion 4.2 again to heat transfer flange 4.3
To installing plate, conduct heat to installing plate and distribute, thus the temperature in the centre of radiating part 3.2 less than periphery 3 ° of temperature~
5°.The center heat-conducting part 4.1 is fixedly connected radiating part；The center heat-conducting part is multiple heat conduction qi pieces, the heat conduction qi piece
The integrally molded top in the radiating qi piece, the heat conduction circular diameter that multiple heat conduction qi pieces are constituted arrives base for the 1/3 of substrate diameter
The 1/2 of piece diameter.
During the LED array device work, as the LED light-emitting component of aggregation constantly discharges heat, tubular evaporator 1
Evaporator section is started working, can the working media of phase transformation gas is changed into by liquid in evaporator section, the gas evaporates upwards, into cold
Solidifying room 2, and condensed on the condensation part 3.1 of radiating qi piece 3, it is liquid by gas transition, with the progressively aggregation of liquid,
Partially liq is dripped downward into tubular evaporator 1 by the first guiding gutter 3.3.The heat discharged on condensation part 3.1 conducts rapidly
Distributed in atmosphere to radiating part 3.2, and by radiating part 3.2.The partial heat of the radiating part 3.2 is passed from heat transfer flange 4.3
Lead in installing plate.
In order to improve the heat absorption efficiency of tubular evaporator 1, the external cylindrical surface of the body 1.1 of tubular evaporator 1 is interval with
Multiple fins 1.11, in order that the thermal capacity for obtaining tubular evaporator 1 is balanced, the inner cylinder face correspondence fin 1.11 of body 1.1 is set
There are multiple grooves 1.12.So set, the heat absorbent surface product of body 1.1 can be greatly increased.From LED light-emitting component and lens
The radiations heat energy of light can by body 1.1 external cylindrical surface more efficient absorption.
The cooling device of the LED array device, is radiated by two approach, first, heat loss through conduction, passes through tubular evaporation
The heat transfer of device 1 to condensation chamber 2, the heat transfer of condensation chamber 2 to the qi piece that radiates, radiating qi piece is distributed heat in air；Second, work
Make medium phase-change heat, gas is changed into by liquid by the working media in tubular evaporator 1, the heat of tubular evaporator 1 is absorbed
Amount；Condensation part 3.1 by gas transition be liquid, conduct heat to radiating qi piece.Detailed process is as follows：Initially, pipe is passed through
Steam after the phase transformation of shape evaporator 1 may just condense backflow in isolation section, and with the increase of quantity of steam, most of steam floats upwards
To condensation part, because the temperature of condensation part is less than the phase transition temperature of working media, steam is condensed into liquid herein；Due to condensation
Amount of liquid is big, and partially liq drips from guiding gutter, and surplus liquid then flows to the vertex of a cone along the conical surface, and by the taper of the circular cover
The vertex of a cone inner surface of indent 2.23 drips.Because the liquid flow distance that the vertex of a cone is flowed to along the conical surface is longer, the fluid temperature also phase
To relatively low, the liquid just compensate for the tubular evaporator 1 of substrate center, just solve the aggregation of center heat than periphery heat
The problem of aggregation of amount is more so that the radiating rate on substrate center and periphery reaches equilibrium.
Embodiment 2
The tubular evaporator 1 includes body 1.1, and the body 1.1 is closed at both ends, it is built-in can phase transformation working media；It is cold
The solidifying built-in conduction oil in room 2, the heat conduction oil level is at least exposed to the condensation part 3.1 of radiating qi piece 3；
Other features are same as Example 1.The phase-change heat of embodiment 2 occurs in the upper end of tubular evaporator 1, heat by
The top tube wall of tubular evaporator 1 passes to conduction oil, and conduction oil is conducted to radiating qi piece, and centre adds the heat transfer of conduction oil
Medium, phase-change heat transfer adds link, compared to the efficiency that embodiment 1 reduces phase-change heat.
The cooling device of the LED array device, dual-purpose heat loss through conduction and phase-change heat, it is simple in construction, it is with low cost, do
Heat is distributed to inexpensive, efficient.
Claims (10)
1. a kind of cooling device of LED array device, it is characterised in that
Including multiple tubular evaporators (1), condensation chamber (2), radiating qi piece (3) and center radiating qi piece (4)；
Condensation chamber (2) includes the columnar body (2.1) and circular cover plate (2.2) of upper shed；The circular cover (2.2)
Taper condensation top (2.22) including indent, multiple radiating qi pieces (3) are located in taper condensation top (2.22) by cover plate
It is divided into two funtion parts, the radiating qi piece (3) that top (2.22) bottom is condensed positioned at taper is partly condensation part (3.1), is located at
The radiating qi piece (3) on taper condensation top (2.22) top is partly radiating part (3.2)；
Tubular evaporator (1) spaced array is arranged on the body base plate of condensation chamber (2)；The tubular evaporator (1) is worn
Substrate is crossed to extend between LED array；Tubular evaporator (1) is built with can phase transformation working media；
Center radiating qi piece (4) is fixedly connected at the top of the radiating part (3.2), the center radiating qi piece (4) includes integrally connecting
Center heat-conducting part (4.1), bridge portion (4.2) and the heat transfer flange (4.3) connect, the heat transfer flange (4.3) is fixed on lighting device
Installing plate on, the center heat-conducting part (4.1) is fixedly connected with the radiating part.
2. the cooling device of LED array device as claimed in claim 1, it is characterised in that the tubular evaporator (1) includes pipe
Body (1.1), the body (1.1) includes blind end and open end, and openend is fitted in the condensation chamber by mounting seat (1.2)
(2) on the base plate of body (2.1).
3. the cooling device of LED array device as claimed in claim 1, it is characterised in that the tubular evaporator (1) includes pipe
Body (1.1), the body (1.1) is closed at both ends, condensation chamber (2) built-in conduction oil, and the heat conduction oil level at least contacts described
The condensation part (3.1) of radiating qi piece (3).
4. the cooling device of LED array device as described in Claims 2 or 3, it is characterised in that the center heat-conducting part (4.1)
For multiple heat conduction qi pieces, the integrally molded top in the radiating qi piece (3) of the heat conduction qi piece, what multiple heat conduction qi pieces were constituted
Heat conduction circular diameter1/3 for substrate diameter arrives the 1/2 of substrate diameter.
5. the cooling device of LED array device as described in Claims 2 or 3, it is characterised in that tubular evaporator (1), condensation chamber
(2), radiating qi piece (3) and center radiating qi piece (4) are made by same rapid thermal conduction material.
6. the cooling device of LED array device as claimed in claim 5, it is characterised in that the condensation part (3.1) is located at described
At least one first guiding gutter (3.3) of the top of tubular evaporator (1) provided with water conservancy diversion downwards.
7. the cooling device of LED array device as described in Claims 2 or 3, it is characterised in that taper condensation top (2.22)
Inner surface is interval with multiple second guiding gutters (2.23) with vertex of a cone Central Symmetry.
8. the cooling device of LED array device as described in Claims 2 or 3, it is characterised in that the base of the LED array device
It is provided between piece and multiple LED light-emitting component arrays on heat-conducting layer, heat-conducting layer and multiple LED light-emitting component arrays, institute is fixedly mounted
State heat-conducting layer and be just fixedly connected with heat carrier to LED light-emitting component position, the heat carrier include integrally connected heating column and
Heat conduction cap, heating column passing through substrate is connected with heat-conducting layer, and heat conduction cap is contacted with the bottom of condensation chamber body (2.1).
9. such as the cooling device with LED array device as described in Claims 2 or 3, it is characterised in that body (1.1) it is cylindrical
Cylinder is interval with multiple fins (1.11), and the inner cylinder face correspondence fin (1.11) of body (1.1) is provided with multiple grooves
(1.12)。
10. the cooling device of LED array device as described in Claims 2 or 3, it is characterised in that body (1.1) wall is provided with length
Square observation window (1.3), observation window lower edge is located at the 1/5 of tubular evaporator (1) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621299820.6U CN206329930U (en) | 2016-11-29 | 2016-11-29 | A kind of cooling device of LED array device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621299820.6U CN206329930U (en) | 2016-11-29 | 2016-11-29 | A kind of cooling device of LED array device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329930U true CN206329930U (en) | 2017-07-14 |
Family
ID=59289297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621299820.6U Withdrawn - After Issue CN206329930U (en) | 2016-11-29 | 2016-11-29 | A kind of cooling device of LED array device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206329930U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107293633A (en) * | 2017-08-03 | 2017-10-24 | 福建工程学院 | A kind of high heat flux cooling device for great power LED |
| CN113661560A (en) * | 2019-04-08 | 2021-11-16 | 朗姆研究公司 | Cooling of plasma-based reactors |
-
2016
- 2016-11-29 CN CN201621299820.6U patent/CN206329930U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107293633A (en) * | 2017-08-03 | 2017-10-24 | 福建工程学院 | A kind of high heat flux cooling device for great power LED |
| CN107293633B (en) * | 2017-08-03 | 2023-02-17 | 福建工程学院 | High heat flux density cooling device for high-power LED |
| CN113661560A (en) * | 2019-04-08 | 2021-11-16 | 朗姆研究公司 | Cooling of plasma-based reactors |
| CN113661560B (en) * | 2019-04-08 | 2023-01-17 | 朗姆研究公司 | Cooling of plasma-based reactors |
| US11676798B2 (en) | 2019-04-08 | 2023-06-13 | Lam Research Corporation | Cooling for a plasma-based reactor |
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Granted publication date: 20170714 Effective date of abandoning: 20180515 |