CN202834817U - light emitting device - Google Patents
light emitting device Download PDFInfo
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- CN202834817U CN202834817U CN201220237258XU CN201220237258U CN202834817U CN 202834817 U CN202834817 U CN 202834817U CN 201220237258X U CN201220237258X U CN 201220237258XU CN 201220237258 U CN201220237258 U CN 201220237258U CN 202834817 U CN202834817 U CN 202834817U
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- 239000000758 substrate Substances 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000002826 coolant Substances 0.000 claims abstract description 6
- 239000012809 cooling fluid Substances 0.000 claims description 19
- 230000004308 accommodation Effects 0.000 claims description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000000110 cooling liquid Substances 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Landscapes
- Led Device Packages (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses a light-emitting device, it includes an at least light source, an at least base plate, an at least base, an at least heat pipe and a coolant liquid. The substrate has at least one hole. The light source is located on the substrate and opposite to the hole. The base has a through hole. The substrate is adjacent to the base, and the hole is communicated with the through hole. The heat pipe is adjacent to the base and is provided with a heat pipe opening communicated with the through hole. The cooling liquid is positioned in the hole, so that the heat of the light source is absorbed to form evaporation gas to flow in the heat pipe. Therefore, the working temperature of the light source can be effectively reduced.
Description
Technical field
The utility model relates to a kind of light-emitting device, in detail, relates to a kind of light-emitting device that reduces the operating temperature of light source.
Background technology
Along with environmental protection and energy-conservation subject under discussion day by day come into one's own, the light-emitting device with light emitting diode (LED) replaces traditional bulb gradually.Yet light emitting diode is usually arranged together with many, and therefore how effectively heat radiation is a large problem.
With reference to figure 1, shown the cross-sectional schematic of existing light-emitting device.This light-emitting device 1 comprises a light emitting diode (LED) element 10, a substrate 12, a container 16 and a cooling water 14.This substrate 12 is a base plate for packaging, and has a first surface 121, a second surface 122.This light-emitting diode 10 is positioned at the first surface 121 of this substrate 12.The second surface 122 of this substrate 12 is positioned on this container 16.This cooling water 14 is these container 16 interior flowing, to take away this light-emitting diode 10 luminous heats that produced.
The shortcoming that should have light-emitting device 1 now is as follows.The heat of this light-emitting diode 10 is just can enter this cooling water 14 after the sidewall by this substrate 12 and this container 16 first, and is taken away by this cooling water 14.Because this substrate 12 and this container 16 are not the good conductors of heat usually, therefore, the heat of this light-emitting diode 10 can't be transmitted to this cooling water 14 rapidly, causes the radiating efficiency of this existing light-emitting device 1 not high.In other words, the thermal resistance of prior art is excessive.
The utility model content
Technical problem to be solved in the utility model is: the light-emitting device of prior art, and the heat of its light-emitting diode can't be transmitted to cooling water rapidly, causes radiating efficiency not high, and thermal resistance is excessive.
The utility model provides a kind of light-emitting device, and it comprises at least one light source, at least one substrate, at least one base, at least one heat pipe and a cooling fluid.This substrate has at least one hole.This light source is positioned on this substrate, and this hole is opened on a surface of this at least one substrate, and with respect to this light source.This base has a through hole, and this through hole runs through this base, and this substrate is adjacent to this base, and this hole is communicated with this through hole.This heat pipe is adjacent to this base, and has a heat pipe opening, this this through hole of heat pipe open communication.This ECL flows in this heat pipe to form a boil-off gas thereby absorb the heat that this light source luminescent produces in this hole.
Particularly, the utility model provides a kind of light-emitting device, comprising:
At least one light source;
At least one substrate has at least one hole, and this at least one light source is positioned on this at least one substrate, and this at least one hole is opened on a surface of this at least one substrate, and with respect to this at least one light source;
At least one base has a through hole, and this through hole runs through this at least one base, and this at least one substrate is adjacent to this at least one base, and this at least one hole is communicated with this through hole;
At least one heat pipe is adjacent to this at least one base, and has a heat pipe opening, this this through hole of heat pipe open communication; And
One cooling fluid is positioned at this at least one hole, thereby the heat that absorbs this at least one light source flows in this at least one heat pipe to form boil-off gas.
In above-mentioned light-emitting device, preferably, this at least one substrate also has a first surface and a second surface, and this at least one light source is positioned at this first surface of this at least one substrate, and this at least one hole is opened on this second surface of this at least one substrate; This at least one base also has a first end and one second end, and this through hole is for being opened on respectively this first end and this second end, and this at least one substrate is adjacent to this first end of this at least one base; This at least one heat pipe is adjacent to this second end of this at least one base.
In above-mentioned light-emitting device, preferably, this at least one light source is LED.
In above-mentioned light-emitting device, preferably, this at least one hole is blind hole.
In above-mentioned light-emitting device, preferably, this at least one hole also is opened on this first surface of this at least one substrate, so that this this at least one light source of cooling fluid contact.
In above-mentioned light-emitting device, preferably, this cooling fluid is water, methyl alcohol, ethanol, ammonia or acetone.
In above-mentioned light-emitting device, preferably, this through hole has respectively one first opening and one second opening in first end and second end of this at least one base, and this first opening is less than this second opening.
In above-mentioned light-emitting device, preferably, also has a joint element, between this at least one substrate and this at least one base, reach this at least one base in order to engage this at least one substrate, and this joint element is the cold welding agent of filling out pore, ceramic cold welding agent or packaging plastic.
In above-mentioned light-emitting device, preferably, this at least one heat pipe comprises a shell body and a capillary structure, this capillary structure is positioned at the madial wall of this shell body to define a hollow accommodation space and this heat pipe opening, so that this boil-off gas flows in this hollow accommodation space through this heat pipe opening, and then across this shell body and external environment formation heat exchange, finally be condensed into liquid coolant.
In above-mentioned light-emitting device, preferably, the material of this shell body is metal, and this capillary structure is that copper mesh, copper powder burn solution or groove.
In above-mentioned light-emitting device, preferably, also comprise at least one heat dissipation element, it has a central tube and a plurality of radiating fin, this central tube is sheathed on this at least one heat pipe, and these radiating fins are to be stretched out by this central tube, and this central tube and these radiating fins are formed in one.
In above-mentioned light-emitting device, preferably, also comprise at least one holder and a loading plate, this at least one holder has a central bore, and in order to accommodating this base, and this at least one holder is fixedly arranged on this loading plate, this loading plate has at least one opening, in order to appear this at least one light source.
By technique scheme, light-emitting device of the present utility model can realize effectively reducing the useful technique effect of the operating temperature of light source.
Description of drawings
Fig. 1 has shown the cross-sectional schematic of existing light-emitting device;
Fig. 2 shows the schematic perspective view of an embodiment of the utility model light-emitting device;
Fig. 3 shows the partial schematic sectional view of Fig. 2;
Fig. 4 shows the schematic perspective view of another embodiment of the utility model light-emitting device;
Fig. 5 has shown in different interface temperature situations, the output of relatively light and the graph of a relation between service life of light emitting diode (LED) element;
Fig. 6 has shown the schematic perspective view of another embodiment of the utility model light-emitting device;
Fig. 7 has shown that the light-emitting device of Fig. 2 is assemblied in the schematic diagram of a loading plate;
Fig. 8 has shown that the light-emitting device of Fig. 4 is assemblied in the schematic diagram of a loading plate; And
Fig. 9 has shown that the light-emitting device of Fig. 6 is assemblied in the schematic diagram of a loading plate.
[main element symbol description]
1 existing light-emitting device
One embodiment of 2 the utility model light-emitting devices
Another embodiment of 3 the utility model light-emitting devices
Another embodiment of 3a the utility model light-emitting device
10 light emitting diodes (LED) element
12 substrates
14 cooling waters
16 containers
20 light sources
22 substrates
24 bases
26 heat pipes
28 cooling fluids
30 joint elements
32 holders
33 heat dissipation elements
The 33a heat dissipation element
34 central tubes
36 radiating fins
The 36a radiating fin
38 loading plates
The first surface of 121 substrates
The second surface of 122 substrates
201 crystal grain
202 adhesive materials
203 wires
The first surface of 221 substrates
The second surface of 222 substrates
223 holes
Fluting on 224
The first end of 241 bases
The second end of 242 bases
243 through holes
261 heat pipe openings
262 shell bodies
263 capillary structures
264 hollow accommodation spaces
321 central bore
The first surface of 381 loading plates
The second surface of 382 loading plates
2,431 first openings
2,432 second openings.
The specific embodiment
Please refer to Fig. 2, shown the schematic perspective view of an embodiment of the utility model light-emitting device.Please refer to Fig. 3, shown the partial schematic sectional view of Fig. 2.This light-emitting device 2 comprises at least one light source 20, at least one substrate 22, at least one base 24, at least one heat pipe 26, a cooling fluid 28, a joint element 30 and at least one holder 32.
In the present embodiment, this light source 20 is light emitting diode (LED) element, and it comprises a plurality of crystal grain 201 and an adhesive material 202, and is positioned on this substrate 22.
In the present embodiment, this substrate 22 is metal base printed circuit board (Metal Core PCB, MCPCB), and it has a first surface 221, a second surface 222 and at least one hole 223.This light source 20 is positioned at this first surface 221 of this substrate 22, that is these crystal grain 201 are attached to this first surface 221, and utilizes many wires 203 to be electrically connected to this first surface 221, and this adhesive material 202 coats these crystal grain 201 and these wires 203.
The position of this hole 223 is relative with this light source 20.In the present embodiment, this hole 223 is opened on this second surface 222 and this first surface 221 of this substrate 22, that is this hole 223 runs through this substrate 22, so that this cooling fluid 28 is after entering this hole 223, can contact these crystal grain 201 of this light source 20, directly to take away these crystal grain 201 luminous heat that produced of this light source 20.Yet in other embodiments, this hole 223 only is opened on this second surface 222 of this substrate 22, that is this hole 223 is blind hole.Preferably, the upper end of this hole 223 has slots 224 on one, and it is opened on this second surface 222 of this substrate 22, and it is the taper external form.In the present embodiment, this substrate 22 has 9 holes 223, and it is arranged in the matrix of 3*3; Yet in other embodiments, this substrate 22 also can only have a hole 223.Say at large that also each of these crystal grain 201 is cooperating each of these holes 223, have what described crystal grain 201 just to have what described holes 223.
This base 24 has a first end 241, one second end 242 and a through hole 243.This through hole 243 runs through this base 24, and is opened on respectively this first end 241 and this second end 242.In the present embodiment, this through hole 243 has respectively one first opening 2431 and one second opening 2432 in this first end 241 and this second end 242, and the sectional area of this first opening 2431 is less than the sectional area of this second opening 2432, so that this through hole 243 forms taper.
This substrate 22 is adjacent to the first end 241 of this base 24, and the sectional area of this first opening 2431 contains these holes 223, so that these holes 223 are communicated with these through holes 243.In the present embodiment, this joint element 30 is between this substrate 22 and this base 24, in order to engaging this substrate 22 and this base 24, and the packaging plastic of this joint element 30 for filling out cold welding agent, the ceramic cold welding agent of pore or mixing phosphor powder.This joint element 30 is except the function that engages, and it has the function of sealing concurrently, oozes out to prevent this cooling fluid 28.
This heat pipe 26 is adjacent to the second end 242 of this base 24, and has a heat pipe opening 261, and this heat pipe opening 261 is communicated with this through hole 243.In the present embodiment, this heat pipe 26 utilizes the argon welding mode to be fixedly arranged on the second end 242 of this base 24.This cooling fluid 28 is positioned at this hole 223, thereby it is interior mobile at this heat pipe 26 to form a boil-off gas to absorb these light source 20 luminous heats that produce.In the present embodiment, this cooling fluid 28 is water, methyl alcohol, ethanol, ammonia, acetone or its any combination.This heat pipe 26 comprises a shell body 262 and a capillary structure 263.This capillary structure 263 is positioned at the madial wall of this shell body 262 to define a hollow accommodation space 264.Preferably, the material of this shell body 262 is metal (for example: brass, nickel, stainless steel, tungsten or other alloys), and this capillary structure 263 is that copper mesh, copper powder burn solution or groove.
This heat pipe opening 261 is communicated to this hollow accommodation space 264, so that these cooling fluid 28 formed boil-off gas can be through this heat pipe opening 261 and these hollow accommodation space 264 interior flowing, and then across this shell body 262 and external environment formation heat exchange, finally be condensed into liquid coolant 28.The liquid coolant 28 that this condensation forms is got back in these holes 223 through the through hole 243 of this base 24 via these capillary structure 263 backflows, and then can successionally take away this light source 20 luminous heat that produce, thereby forms a heat radiation circulation.
This holder 32 has a central bore 321, in order to accommodating this base 24.In the present embodiment, the material of this holder 32 and this base 24 is metal (for example: brass, nickel, stainless steel, tungsten or other alloys), and this holder 32 is fixed in this base 24.Yet in other embodiments, this holder 32 and this base 24 are formed in one.
The type of drive of this light-emitting device 2 is as follows.When these light source 20 luminous generations were hot, the cooling fluid 28 that is positioned at this hole 223 absorbed the heat of this light source 20 and forms a boil-off gas.This boil-off gas know from experience flow in this hollow accommodation space 264 through the through hole 243 of this base 24 this heat pipe 26 above.Because the top of this heat pipe 26 is to touch the lower temperature place, so when this boil-off gas arrives this end, just begin to produce condensation, this moment, heat was exactly heat pipe 26 outsides of being passed to lower temperature by this boil-off gas by this shell body 262.Simultaneously, this boil-off gas cognition condenses into liquid, and these liquid coolant 28 that produce after because of condensation flow back to the through hole 243 of this base 24 via the effect of the capillarity (Capillary Pumping) of this capillary structure 263, enter afterwards in these holes 223 again.So thereby circulation can continue to carry out to improve radiating effect.Therefore, the utility model can be removed the thermal resistance between this cooling fluid 28 and this light source 20 in this heat pipe 26, so that the radiating effect of this cooling fluid 28 can maximize in this heat pipe 26, and can effectively reduce the operating temperature of this light source 20, and then prolong the service life of this light source 20.
Please refer to Fig. 4, shown the schematic perspective view of another embodiment of the utility model light-emitting device.The light-emitting device 3 of present embodiment is roughly the same with the light-emitting device 2 of Fig. 1 and 2, and wherein identical element is given identical Reference numeral.The light-emitting device 3 of present embodiment and the light-emitting device 2 of Fig. 1 and 2 different be in, in the present embodiment, this light-emitting device 3 also comprises at least one heat dissipation element 33, it has a central tube 34 and a plurality of radiating fin 36.This central tube 34 is sheathed on this heat pipe 26, preferably, and these central tube 34 these heat pipes 26 of contact.These radiating fins 36 are to be stretched out in radial mode by this central tube 34, and this central tube 34 and these radiating fins 36 are formed in one.
Please refer to Fig. 5, shown in different interface temperature situations, the output of relatively light (Relative Light Output) and the graph of a relation between service life of light emitting diode (LED) element.This interface temperature refers to the temperature of these crystal grain 201 and these substrate 22 contact-making surfaces (i.e. this first surface 221).Light emitting diode (LED) element light output meeting decayed along with the time, and light is output as the ratio of light output and initial light output relatively.In the drawings, curve 51 represents 69 ℃ of interface temperatures, and curve 52 represents 79 ℃ of interface temperatures, and curve 53 represents 85 ℃ of interface temperatures, and curve 54 represents 96 ℃ of interface temperatures, and curve 55 represents 107 ℃ of interface temperatures, and curve 56 represents 115 ℃ of interface temperatures.As shown in the figure, in same relatively light output situation, the light-emitting diode that interface temperature is lower has longer service life.
Interface temperature through testing the light-emitting device 3 that can record Fig. 4 is 51.1 ℃, and (experiment condition is as follows: this cooling fluid 28 is water; The power of these crystal grain 201 is 10W; Operating pressure in this hollow accommodation space 264 is 64 holders (Torr); Room temperature is 21.6 ℃).In addition, laterally brush these radiating fins 36 if install fan additional, the interface temperature that can record this light-emitting device 3 is 32.8 ℃, and (experiment condition is as follows: this cooling fluid 28 is water again; The power of these crystal grain 201 is 9.6W; Operating pressure in this hollow accommodation space 264 is 25 holders (Torr); Room temperature is 22 ℃).In comparison, light emitting diode (LED) element 10 of the light-emitting device 1 of Fig. 1 is lined up interface temperature measured in the situation of 3*3 matrix and is about 70 ℃.Therefore, the interface temperature of this light-emitting device 3 is lower than prior art as can be known, and can calculate rationally that its service life also can be longer.
Please refer to Fig. 6, shown the schematic perspective view of another embodiment of the utility model light-emitting device.The light-emitting device 3a of present embodiment and the light-emitting device 3 of Fig. 4 are roughly the same, and wherein identical element is given identical Reference numeral.The light-emitting device 3a of present embodiment and the light-emitting device 3 of Fig. 4 different be in, the radiating fin 36 outward extending width of the heat dissipation element 33 of the light-emitting device 3 of Fig. 4 are all equal, and form circular appearance in the periphery; Otherwise in the present embodiment, the outward extending width of radiating fin 36a of the heat dissipation element 33a of this light-emitting device 3a is not exclusively equal, and forms rectangular appearance in the periphery.
Please refer to Fig. 7, show that the light-emitting device of Fig. 2 is assemblied in the schematic diagram of a loading plate.This loading plate 38 has a first surface 381, a second surface 382 and a plurality of opening (not shown), and these openings run through this loading plate 38.A plurality of light-emitting device 2(Fig. 2) utilize its holder 32 and set firmly (for example utilizing screw closure) on the second surface 382 of this loading plate 38, these openings are corresponding with the light source 20 of these light-emitting devices 2, to appear these light sources 20.So, can increase the brightness of sending, and can use as for example street lamp.In the present embodiment, these light-emitting devices 2 are for lining up the 3*3 matrix, yet in other embodiments, these light-emitting devices 2 also can be looked actual needs and line up other patterns.
Please refer to Fig. 8, shown that the light-emitting device of Fig. 4 is assemblied in the schematic diagram of a loading plate.In the present embodiment, a plurality of light-emitting device 3(Fig. 4) utilize its holder 32 and set firmly (for example utilizing screw closure) on the second surface 382 of this loading plate 38, and these openings of this loading plate 38 are corresponding with the light source 20 of these light-emitting devices 3, to appear these light sources 20.In the present embodiment, these light-emitting devices 3 are for lining up the 3*3 matrix, yet in other embodiments, these light-emitting devices 3 also can be looked actual needs and line up other patterns.
Please refer to Fig. 9, shown that the light-emitting device of Fig. 6 is assemblied in the schematic diagram of a loading plate.In the present embodiment, a plurality of light-emitting device 3a(Fig. 6) utilize its holder 32 and set firmly (for example utilizing screw closure) on the second surface 382 of this loading plate 38, and these openings of this loading plate 38 are corresponding to the light source 20 of these light-emitting devices 3a, to appear these light sources 20.In the present embodiment, these light-emitting devices 3a lines up the 3*3 matrix, yet in other embodiments, these light-emitting devices 3a also can look actual needs and line up other patterns.
But above-described embodiment only is explanation principle of the present utility model and effect thereof, but not in order to limit the utility model.Therefore, those of ordinary skill in the art makes amendment to above-described embodiment and changes and still do not break away from spirit of the present utility model.Interest field of the present utility model should limit such as claims.
Claims (12)
1. a light-emitting device is characterized in that, comprising:
At least one light source;
At least one substrate has at least one hole, and this at least one light source is positioned on this at least one substrate, and this at least one hole is opened on a surface of this at least one substrate, and with respect to this at least one light source;
At least one base has a through hole, and this through hole runs through this at least one base, and this at least one substrate is adjacent to this at least one base, and this at least one hole is communicated with this through hole;
At least one heat pipe is adjacent to this at least one base, and has a heat pipe opening, this this through hole of heat pipe open communication; And
One cooling fluid is positioned at this at least one hole, thereby the heat that absorbs this at least one light source flows in this at least one heat pipe to form boil-off gas.
2. light-emitting device according to claim 1, it is characterized in that, this at least one substrate also has a first surface and a second surface, and this at least one light source is positioned at this first surface of this at least one substrate, and this at least one hole is opened on this second surface of this at least one substrate; This at least one base also has a first end and one second end, and this through hole is for being opened on respectively this first end and this second end, and this at least one substrate is adjacent to this first end of this at least one base; This at least one heat pipe is adjacent to this second end of this at least one base.
3. light-emitting device according to claim 1 is characterized in that, this at least one light source is LED.
4. light-emitting device according to claim 1 is characterized in that, this at least one hole is blind hole.
5. light-emitting device according to claim 2 is characterized in that, this at least one hole also is opened on this first surface of this at least one substrate, so that this this at least one light source of cooling fluid contact.
6. light-emitting device according to claim 1 is characterized in that, this cooling fluid is water, methyl alcohol, ethanol, ammonia or acetone.
7. light-emitting device according to claim 2 is characterized in that, this through hole has respectively one first opening and one second opening in first end and second end of this at least one base, and this first opening is less than this second opening.
8. light-emitting device according to claim 1, it is characterized in that also having a joint element, between this at least one substrate and this at least one base, reach this at least one base in order to engage this at least one substrate, and this joint element is the cold welding agent of filling out pore, ceramic cold welding agent or packaging plastic.
9. light-emitting device according to claim 1, it is characterized in that, this at least one heat pipe comprises a shell body and a capillary structure, this capillary structure is positioned at the madial wall of this shell body to define a hollow accommodation space and this heat pipe opening, so that this boil-off gas flows in this hollow accommodation space through this heat pipe opening, and then across this shell body and external environment formation heat exchange, finally be condensed into liquid coolant.
10. light-emitting device according to claim 9 is characterized in that, the material of this shell body is metal, and this capillary structure is that copper mesh, copper powder burn solution or groove.
11. light-emitting device according to claim 1, it is characterized in that, also comprise at least one heat dissipation element, it has a central tube and a plurality of radiating fin, this central tube is sheathed on this at least one heat pipe, these radiating fins are to be stretched out by this central tube, and this central tube and these radiating fins are formed in one.
12. light-emitting device according to claim 1, it is characterized in that, also comprise at least one holder and a loading plate, this at least one holder has a central bore, in order to accommodating this base, and this at least one holder is fixedly arranged on this loading plate, and this loading plate has at least one opening, in order to appear this at least one light source.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101209514U TWM443854U (en) | 2012-05-18 | 2012-05-18 | Light-emitting apparatus |
| TW101209514 | 2012-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834817U true CN202834817U (en) | 2013-03-27 |
Family
ID=47946520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220237258XU Expired - Fee Related CN202834817U (en) | 2012-05-18 | 2012-05-24 | light emitting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202834817U (en) |
| TW (1) | TWM443854U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292195A (en) * | 2013-06-21 | 2013-09-11 | 中国科学院工程热物理研究所 | Split type LED lamp |
| CN103423630A (en) * | 2012-05-18 | 2013-12-04 | 乐利士实业股份有限公司 | Light emitting device |
-
2012
- 2012-05-18 TW TW101209514U patent/TWM443854U/en unknown
- 2012-05-24 CN CN201220237258XU patent/CN202834817U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423630A (en) * | 2012-05-18 | 2013-12-04 | 乐利士实业股份有限公司 | Light emitting device |
| CN103292195A (en) * | 2013-06-21 | 2013-09-11 | 中国科学院工程热物理研究所 | Split type LED lamp |
| CN103292195B (en) * | 2013-06-21 | 2015-03-25 | 中国科学院工程热物理研究所 | Split type LED lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM443854U (en) | 2012-12-21 |
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