CN101354115A - Heat radiation system of LED headlight module - Google Patents
Heat radiation system of LED headlight module Download PDFInfo
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- CN101354115A CN101354115A CNA2007101390669A CN200710139066A CN101354115A CN 101354115 A CN101354115 A CN 101354115A CN A2007101390669 A CNA2007101390669 A CN A2007101390669A CN 200710139066 A CN200710139066 A CN 200710139066A CN 101354115 A CN101354115 A CN 101354115A
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- cooling system
- heat
- led headlight
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- 230000005855 radiation Effects 0.000 title description 4
- 238000012546 transfer Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 12
- 239000011810 insulating material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000001149 thermolysis Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001025261 Neoraja caerulea Species 0.000 description 1
- 241000131853 Solifugae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a heat dissipation system of an LED head light module. The heat dissipation system has a heat dissipation module arranged in a space in which gas flows in a vehicle body, and the space can be at the back of a bumper, inside a front fender or in front of a radiator, and ensure that heat generated by the LED module is transmitted to the heat dissipation module for heat dissipation by a high-heat transfer component respectively connected with the LED module and the heat dissipation module. In addition, insulating material is attached around the LED module or forms a space separating from an engine compartment so that the LED module can be separated from high temperature of the engine compartment so as to realize the heat dissipation. Furthermore, a flow pass can be arranged at an opening of the bumper and an opening of the front fender so that the heat dissipation module can improve the capacity for heat dissipation through natural convection or forced convection; fans can even be additionally arranged around the heat dissipation module to improve the capacity for heat dissipation, thus reducing the ambient temperature when the LED module is in use to prolong the service life of the LED head light module.
Description
Technical field
The invention relates to a kind of headlight cooling system, particularly can reduce the environment temperature of headlight when using about a kind of, form an environment that separates with the engine chamber thermal source, buy car in installments head lamp and its radiating module use, with the cooling system of the LED headlight module in raising headlight service life.
Background technology
After the formal appearance of nineteen sixty-eight Light Emitting Diode (LED), owing to have power saving, light and handy, numerous advantages such as the life-span is long, driving voltage is low, reaction rate is fast, vibration strength is good, after the commercialization seventies, just develop toward directions such as high brightness, multicolor and high-luminous-efficiencies fast, GaAsP high brightness red-light LED and GaP green light LED appear successively in the eighties, then have the nineties quaternary AlGaInP high brightness ruddiness, orange LED and InGaN blue light, green glow and in recent years ultraviolet leds also all delivered successively.Because the LED unit brightness constantly improves, make the application of LED also more and more broader, the small-sized indicator lamp of being seen on the electronic equipment is as the outdoor large billboard etc.; Between the latter half in generation nineteen ninety, LED begins to replace gradually the use of incandescent lamp on traffic lights, and with its corresponding conventional incandescent relatively, LED can save the electric energy that surpasses more than 80%.Research and develop successfully from blue-ray LED, and then driven developing rapidly of White-light LED illumination, simultaneous LED manufacturing technology progresses greatly day by day, brightness constantly improves, white light LEDs is used most probably becomes following automotive lighting light source, and especially LED possesses compact advantage, can make the luminous intensity distribution design of car lighting more simple, convenient, increase the life-span of car lighting utensil, save the electric consumption on lighting of vehicle etc.
Possess sizable potentiality though LED is applied in auto bulb, still have considerable technical bottleneck to be overcome, the temperature factor of LED especially, LED is applied in the key technology that primarily overcomes on the automotive lighting especially.For LED, its luminous intensity is directly proportional with drive current haply, but the change of temperature, the while also changes the characteristics of luminescence and the component life of LED.The characteristic of LED is easily influenced by ambient temperature, the environment temperature light output will cause LED that raises reduces, so the light output and the main factor in life-span of environment temperature decision LED have also formed the major obstacle that LED is applied in auto bulb.This is because auto bulb mostly uses light-weighted material design now, and the trend of slimming makes the auto bulb volume inside heal to become narrow and small, this heat energy that makes LED itself be sent can't be directed in the external environment, and head lamp need be installed on the car engine chamber, the thermal source of itself adds that the high heat from engine chamber will make the usefulness of LED head lamp reduce, and shorten the led light source life-span, that is the bulk life time of auto bulb.
The radiating module of traditional concept design gets final product by dealing carefully with the electronic component that can produce high heat, but along with many electronic product multifunctions, the caloric value of electronic product is increased gradually.In the auto electronic product of countries in the world development at present, the heat dissipation design with the LED headlight is the most difficult especially.Be in mostly because of its environment for use in the engine chamber of high temperature, temperature often is higher than more than 80 ℃, around the cooling water tank even can surpass more than 100 ℃.In our research, find that the Temperature Distribution of engine chamber is quite inhomogeneous, near near the temperature the headlight greatly about 30～40 ℃, the particularly front apron of body side and front bumper, as shown in Figure 1.Automobile is when mobile, and air-flow can influence heat dispersion.When automobile in mobile status, near the Temperature Distribution headlight is uniform.Regrettably, the temperature arround automobile will increase car light during in idling mode apace, and the uneven temperature changes in distribution that causes its context.When the driver was stopped the wait traffic lights, in two minutes, near the temperature the headlight rose to 70 ℃, and variations in temperature as shown in Figure 2.When automobile is advanced, because of air-flow relation reduces temperature apace, the temperature arround the engine chamber is changed, therefore, the quick variation of car light ambient temperature makes the LED car light that the use restriction of unusual car light be arranged on using.
Use non-homogeneous Temperature Distribution near the radiating module zone of LED headlight of the present invention, and the radiating module of configuration LED headlight is near low-temperature space.This conception is different from traditional headlight design concept.Therefore, effectively the radiating module design has the necessity of its development, solves the high temperature problem of LED headlight module in environment for use, avoids the too high influence that produces of engine bay temperature, to reach the efficiently radiates heat and the purpose in lifting LED lamp source module life-span.
Summary of the invention
The technical problem to be solved in the present invention is: the cooling system that a kind of LED headlight module is provided, it is in away from engine chamber heater element place one independent cooling system being set, utilize the hot transport phenomenon that intercepts engine chamber heater element thermal source, to reduce the environment temperature of LED headlight module when using and the life-span of improving LED.
Technical solution of the present invention is: a kind of cooling system of LED headlight module, and it comprises:
One led module is installed in the headlight of car body;
At least one radiating module has several fins, and this radiating module is installed in to be had in the car body in the runner that gas passes through; And
At least one heat transfer element connects this led module and this radiating module respectively, makes the heat of this led module be passed to this radiating module.
Characteristics of the present invention and advantage are: the cooling system of LED headlight module of the present invention is installed in radiating module to be had in the car body in the space that gas passes through, that is away from engine chamber heater element place, compare the lower position of temperature of engine chamber, as spaces such as the inboard of the inside of bumper bar in the car body or rear, front fender, water tank sides, and by connecting the heat transfer element of led module and radiating module respectively, the heat of led module is passed to radiating module dispels the heat.Preferably, utilize heat-barrier material to attach around the led module or form a space that intercepts with the engine chamber of high temperature, the heat that just can reduce engine chamber and other high-temperature components is passed to led module, makes led module can intercept the heat of engine chamber and dispels the heat with high heat transfer element and radiating module.This runner is provided with an opening or is provided with an opening or lappet periphery car body slit as opening in this front fender place in bumper bar again, also can lay heat-barrier material around the runner to improve effect of heat insulation, again this radiating module is located in this runner, when just making this radiating module in static or traveling process, vehicle increases heat-sinking capability by free convection or forced convertion, even can add fan around the radiating module and promote heat-sinking capability in mode initiatively, or the radiating module side is provided with a water jet in car body, help the thermolysis of radiating module, reduce the environment temperature of led module when using to reach, improve LED head lamp module service life.Radiating module structure of the present invention is simple and with low cost, and independently the design of cooling system can avoid the interlock with other element, makes the vehicle assembling process or when keeping in repair in the future, and is quite convenient.
Description of drawings
Fig. 1 is the schematic diagram of the non-uniform Distribution temperature of car engine chamber;
Fig. 2 is near the schematic diagram of the variations in temperature the headlight;
Fig. 3 is the front view of the cooling system of LED headlight module of the present invention;
Fig. 4 is the side view of the cooling system of LED headlight module of the present invention;
Fig. 5 is the front view of the cooling system embodiment one of LED headlight module of the present invention;
Fig. 6 is the side view of the cooling system embodiment one of LED headlight module of the present invention;
Fig. 7 is the vertical view of the cooling system embodiment two of LED headlight module of the present invention;
Fig. 8 is the front view of the cooling system embodiment three of LED headlight module of the present invention;
Fig. 9 is the vertical view of the cooling system embodiment three of LED headlight module of the present invention; And
Figure 10 is provided with the schematic diagram of water jet for the cooling system of LED headlight module of the present invention.
[main element symbol description]
10 led modules, 101 panels
102 light emitting diodes, 20 radiating modules
30 high heat transfer elements, 40 heat-barrier materials
50 runners, 60 car bodies
601 headlight, 70 engines
80 water tanks, 801 water tank guard shields
90 bumper bars, 91 front fenders
92 body construction beams, 93 water jets
94 water pipes, 95 storage tanks
96 pumps
The specific embodiment
For reaching above-mentioned purpose and effect, the technology used in the present invention means and structure, now in conjunction with the accompanying drawings just preferred embodiment of the present invention illustrate that in detail its feature and function are as follows, are beneficial to understand fully.
Please consult Fig. 3 simultaneously, Fig. 4 is respectively the front view and the side view of the cooling system of LED headlight module of the present invention, the cooling system of LED headlight module of the present invention comprises a led module 10, at least one radiating module 20 and at least one heat transfer element 30, this led module 10 is installed in headlight 601 inside of car body 60, this led module 10 includes a panel 101 and several light emitting diodes 102, this panel 101 is provided with several light emitting diodes 102, electric current by supply in the car body 60 makes several light emitting diodes 102 on these led module 10 panels 101 shinny, and by the speculum of headlight light is penetrated.This radiating module 20 is installed in to be had in the car body 60 in the runner 50 that gas passes through, and this radiating module 20 is the materials (for example aluminium, copper product) with high heat-conduction coefficient.This radiating module 20 is provided with several fins, these several fins can be buckle piece type, penetrate structures such as (tunnel) formula, aluminium extruded type fin, buckle piece type fin for example, allow car body 60 interior air-flows can pass through this buckle piece type fin, the advection heat that promotes these several fins passes coefficient, just promotes the heat-sinking capability of this radiating module 20.This heat transfer element 30 connects this led module 10 and this radiating module 20 respectively, and this heat transfer element 30 helps to transmit the effect of heat, makes the heat of this led module 10 can be passed to this radiating module 20 and dispels the heat.Preferably, this heat transfer element 30 is a heat pipe.
Please consult Fig. 5, Fig. 6 simultaneously, be respectively front view and the side view of the cooling system embodiment one of LED headlight module of the present invention, the cooling system of LED headlight module of the present invention is installed in the car body 60, the left and right sides of these car body 60 front ends is respectively equipped with a headlight 601 and a bumper bar 90, this bumper bar 90 is positioned at the below of this headlight 601, and the engine chamber in this car body 60 has an engine 70.
Present embodiment is this radiating module 20 to be installed in have in this car body 60 in the runner 50 that gas passes through, this runner 50 is preferably inside or the rear that is positioned at this bumper bar 90, and elements such as the rear of this bumper bar 90 and water tank 80, exhaust manifold, engine 70 have larger distance, and environment temperature herein is relatively lower, dispels the heat so this radiating module 20 can be located at herein.In addition, promptly there are the slit in car body 60 and lappet 91 metal plate spares or 90 of bumper bars, and this radiating module 20 also can be located at herein and dispel the heat.
The cooling system of LED headlight module of the present invention also utilizes a heat-barrier material 40 to attach around this led module 10 or forms a space isolated with the engine chamber of high temperature, be passed to this led module 10 in order to the heat that reduces engine chamber and other high-temperature components, make this led module 10 can intercept the heat of engine chamber and heat is passed to this radiating module 20 and dispel the heat with this heat transfer element 30.
Preferably, this runner 50 is provided with an opening in this bumper bar 90, also can lay this heat-barrier material 40 improving heat insulation effect around this runner 50, and this radiating module 20 is installed in this runner 50.This runner 50 can be provided with an opening in this front fender 91, and this opening also can be located on these bumper bar 90 bodies, and the air communication when the guiding vehicle is advanced is crossed this runner 50 and flowed into and outflow, to improve the heat-sinking capability of this radiating module 20.When stationary vehicle, utilize heat-barrier material 40 to be layed in headlight 601 with around the radiating module 20, make that said elements can avoid being subjected to the heat transport phenomenon that air-flow produced that water tank 80 air blasts are caused, or the heat transmission of other heater element.Utilize the static or travel condition of vehicle to make air-flow enter and to pass in and out, make this radiating module 20 increase heat-sinking capability, reach better radiating effect by free convection or forced convertion from this runner 50.Can utilize extraneous lower environment temperature and hit wind scorpion makes this radiating module 20 increase heat-sinking capability by free convection or forced convertion.Therefore, be located at the inside of bumper bars 90 in this car body 60 or rear, heat transfer element 30, heat-barrier material 40 and runner 50 by this radiating module 20 and can form a cooling system independently, intercept the transport phenomenon of this radiating module 20 and this engine chamber internal heat, reduce the environment temperature of this led module 10 when using, to improve the life-span of using.In addition, a fan also can be set around this radiating module 20, utilize this fan mode initiatively to promote the heat-sinking capability of this radiating module 20, strengthen its radiating effect.
See also Fig. 7, vertical view for the cooling system embodiment two of LED headlight module of the present invention, the cooling system of LED headlight module of the present invention is installed in the car body 60, the left and right sides of these car body 60 front ends is respectively equipped with a headlight 601, and this headlight 601 is extended along car body 60 shells backward and is provided with a front fender 91, engine chamber in this car body 60 has an engine 70,91 of this engine 70 and this front fenders are separated by a body construction beam 92, so the temperature of the medial region of this front fender 91 relatively temperature than this engine chamber is low, therefore another embodiment of the present invention is the inner space that this radiating module 20 is installed in this body construction beam 92 and this front fender 91, the heat that this led module 10 is produced by this heat transfer element 30 is passed to this radiating module 20 heat radiations again, reaches the requirement of heat radiation.
Preferably, for the heat that intercepts engine chamber and other high-temperature components further is passed to this led module 10, utilize a heat-barrier material 40 to be attached at this led module 10 peripheral part, or the engine chamber that forms a space and high temperature is isolated, the heat that just can reduce engine chamber and other high-temperature components is passed to this led module 10, by this heat transfer element 30 heat of this led module 10 is passed to this radiating module 20 again and dispels the heat.In addition, this runner 50 is to be provided with an opening in this front fender 91, and air-flow can be entered thus.Certainly also being provided with an outlet by this front fender 91 discharges gas.Preferably, this opening exports in these front fender 91 rear ends and be somebody's turn to do at these front fender 91 front ends.Also can lay this heat-barrier material 40 around this runner 50, and this radiating module 20 is installed in this runner 50, utilize the static or travel condition of vehicle to make air-flow enter and to pass in and out from this runner 50, make this radiating module 20 increase heat-sinking capability, reach better radiating effect by free convection or forced convertion.Even a fan is set around this radiating module 20, utilize this fan mode initiatively to promote the heat-sinking capability of this radiating module 20, to strengthen its radiating effect.
Please consult Fig. 8, Fig. 9 simultaneously, be respectively front view and the vertical view of the cooling system embodiment three of LED headlight module of the present invention, the cooling system of LED headlight module of the present invention is installed in the car body 60, the left and right sides of these car body 60 front ends is respectively equipped with a headlight 601, engine chamber in this car body 60 has an engine 70 and a water tank 80, and the place ahead of this water tank 80 is provided with a water tank guard shield 801.Another embodiment of the present invention is this radiating module 20 to be arranged at this car body 60 inner water tanks 80 sides, just this water tank 80 and water tank guard shield are 801, with these engine 70 elements such as grade larger distance is arranged herein, its environment temperature is also relatively lower, dispels the heat so this radiating module 20 can be located at herein.
Preferably, the cooling system of LED headlight module of the present invention also utilizes a heat-barrier material 40 to attach around this led module 10 or forms a space isolated with the engine chamber of high temperature, this heat-barrier material 40 is layed in 80 in radiating module 20 and water tank, avoid the heat radiation of this radiating module 20 of temperatures involved of this water tank 80, the heat that so just can reduce engine chamber and other high-temperature components is passed to this led module 10.Yet this radiating module 20 is to be located at 801 of this water tank 80 and this water tank guard shields, and when this vehicle during in travel condition, air-flow can flow into from the place ahead of this water tank 80, promote the heat-sinking capability of this radiating module 20 in the mode of forced convertion; When this vehicle during, utilize the mode of free convection to dispel the heat in inactive state.In addition, a fan also can be set around this radiating module 20, utilize this fan mode initiatively to promote the heat-sinking capability of this radiating module 20, to strengthen its radiating effect.This moment, this runner 50 promptly utilized the space of 801 of water tank guard shields that the air communication mistake is provided.
See also Figure 10, the schematic diagram of water jet is set for the cooling system of LED headlight module of the present invention, radiating module 20 of the present invention is installed in to be had in the car body 60 in the runner 50 that gas passes through, around this radiating module 20 water jet 93 can be set, reach the requirement that promotes heat-sinking capability by water mist spray to this radiating module (fin) surface.This water jet 93 is to be connected with a pump 96 with a water pipe 94, and this pump 96 then is connected by another water pipe 94 and this car body 60 interior storage tanks 95, or establishes a storage tank 95 in addition.Therefore, utilize this pump 96 water of this storage tank 95 can be delivered to this water jet 93 ejections by this water pipe 94, water is sprayed onto on this radiating module 20, help the thermolysis of this radiating module 20.
Comprehensively above-mentioned, the cooling system of LED headlight module of the present invention is installed in by radiating module to be had in the car body in the flow channel space that gas passes through, inside or rear as bumper bar in the car body, the inner space of front fender, water tank side etc. is located, utilizing heat transfer element that the heat of led module is passed to radiating module again dispels the heat, make radiating module increase heat-sinking capability by free convection or forced convertion, even can add fan around the radiating module and promote heat-sinking capability, or radiating module is provided with a water jet on every side in car body, help the thermolysis of radiating module, reduce the environment temperature of led module when using to improve service life to reach.
Claims (15)
1. the cooling system of a LED headlight module is characterized in that, comprising:
One led module is installed in the headlight of car body;
At least one radiating module has several fins, and this radiating module is installed in to be had in the car body in the runner that gas passes through; And
At least one heat transfer element connects this led module and this radiating module respectively, makes the heat of this led module be passed to this radiating module.
2. the cooling system of LED headlight module as claimed in claim 1 is characterized in that, this led module includes a panel and this panel is provided with several light emitting diodes.
3. the cooling system of LED headlight module as claimed in claim 1 is characterized in that, this runner is located at the bumper bar rear of this car body.
4. the cooling system of LED headlight module as claimed in claim 3 is characterized in that, this runner is to be provided with an opening on this bumper bar.
5. the cooling system of LED headlight module as claimed in claim 1 is characterized in that, this runner is located in the front fender of this car body.
6. the cooling system of LED headlight module as claimed in claim 5 is characterized in that, this runner is to be provided with an opening at this front fender place.
7. the cooling system of LED headlight module as claimed in claim 1 is characterized in that, this runner is located at the water tank side of this car body.
8. the cooling system of LED headlight module as claimed in claim 1, it is characterized in that, also comprise a heat-barrier material, this heat-barrier material is attached at around this led module and the radiating module, allows this led module and radiating module can intercept the high temperature of engine chamber and dispels the heat.
9. the cooling system of LED headlight module as claimed in claim 8 is characterized in that, peripheral part of this runner is laid this heat-barrier material.
10. the cooling system of LED headlight module as claimed in claim 1 is characterized in that, also comprises a fan, and this fan is located at this radiating module on every side to improve heat-sinking capability.
11. the cooling system of LED headlight module as claimed in claim 1 is characterized in that, this thermal transmission element is a heat pipe.
12. the cooling system of LED headlight module as claimed in claim 1 is characterized in that, also comprises a water jet, a water pipe, a storage tank and a pump, this water jet is to be connected with a pump with a water pipe, and this pump then is connected with this storage tank by another water pipe.
13. the cooling system of LED headlight module as claimed in claim 12 is characterized in that, this storage tank is the storage tank of vehicle itself.
14. the cooling system of LED headlight module as claimed in claim 1 is characterized in that, described several fins are buckle piece type, penetration or aluminium extruded type fin structure.
15. the cooling system of LED headlight module as claimed in claim 5 is characterized in that, this runner is as opening in this front fender periphery car body slit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101390669A CN101354115A (en) | 2007-07-24 | 2007-07-24 | Heat radiation system of LED headlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101390669A CN101354115A (en) | 2007-07-24 | 2007-07-24 | Heat radiation system of LED headlight module |
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| Publication Number | Publication Date |
|---|---|
| CN101354115A true CN101354115A (en) | 2009-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101390669A Pending CN101354115A (en) | 2007-07-24 | 2007-07-24 | Heat radiation system of LED headlight module |
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| Country | Link |
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| CN (1) | CN101354115A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876415A (en) * | 2010-06-01 | 2010-11-03 | 王刚 | Automobile headlamp LED combined chip illuminator |
| CN102478226A (en) * | 2010-11-23 | 2012-05-30 | 林栢村 | Cooling and heat dissipating system for vehicle lamp |
| CN103511949A (en) * | 2013-08-21 | 2014-01-15 | 兰州吉利汽车工业有限公司 | Automobile LED headlamp with heat dissipation structure |
| CN113305284A (en) * | 2021-05-27 | 2021-08-27 | 广东韶钢松山股份有限公司 | Tractor heat insulation device and molten iron tractor |
-
2007
- 2007-07-24 CN CNA2007101390669A patent/CN101354115A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876415A (en) * | 2010-06-01 | 2010-11-03 | 王刚 | Automobile headlamp LED combined chip illuminator |
| CN102478226A (en) * | 2010-11-23 | 2012-05-30 | 林栢村 | Cooling and heat dissipating system for vehicle lamp |
| CN103511949A (en) * | 2013-08-21 | 2014-01-15 | 兰州吉利汽车工业有限公司 | Automobile LED headlamp with heat dissipation structure |
| CN103511949B (en) * | 2013-08-21 | 2015-09-02 | 兰州吉利汽车工业有限公司 | A kind of automobile LED headlamp with radiator structure |
| CN113305284A (en) * | 2021-05-27 | 2021-08-27 | 广东韶钢松山股份有限公司 | Tractor heat insulation device and molten iron tractor |
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Open date: 20090128 |