CN104110624A - Exposed-cooling type LED vehicle lamp - Google Patents
Exposed-cooling type LED vehicle lamp Download PDFInfo
- Publication number
- CN104110624A CN104110624A CN201310134960.2A CN201310134960A CN104110624A CN 104110624 A CN104110624 A CN 104110624A CN 201310134960 A CN201310134960 A CN 201310134960A CN 104110624 A CN104110624 A CN 104110624A
- Authority
- CN
- China
- Prior art keywords
- light source
- cooling
- led
- lamp
- cooling type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to an exposed-cooling type LED vehicle lamp and belongs to the technical field of lighting. The exposed-cooling type LED vehicle lamp comprises a cooling board and is characterized in that an upper-beam LED light source and a lower-beam LED light source are installed on the cooling board, and a plurality of cooling fins are distributed on the cooling board around the upper-beam LED light source and the lower-beam LED light source. The exposed-cooling type LED vehicle lamp is simple in structure and quite obvious in cooling effect. A traditional transparent lampshade of the vehicle lamp is omitted and the cooling fins of the LED lamp are externally exposed to the natural air outside a vehicle body, so that the good cooling effect of LEDs is guaranteed; the cooling effect of the LEDs can be especially better when the cooling fins are subjected to forced cooling of convection during driving of a vehicle, so that high lighting effect and long service life of the LED vehicle lamp are guaranteed; the exposed-cooling type LED vehicle lamp is simpler in structure, lower in cost, higher in reliability and easier to install and maintain, and ranges of visibility of an upper-beam lamp and a lower-beam lamp of the vehicle are enlarged at the same time.
Description
Technical field
The present invention relates to one and expose cooling type LED car light, belong to lighting technical field.
Background technology
Automotive lamp mainly uses two kinds of light sources at present: Halogen lamp LED and xenon lamp.It is luminous that Halogen lamp LED uses tungsten filament heating to turn white-hot, and xenon lamp, without filament, adopts arc glow, temperature when both work all up to hundreds of degree Celsius to thousands of degrees Celsius, and To Be Protected from Heat.Therefore car light is generally designed to a relatively box of sealing present stage, and its rear portion is reflection shield, and front portion is transparent lampshade, and light source is installed on the cavity of centre.Such design can keep the clean of inner counter light shield and lamp pearl, avoids lamp pearl loses heat to reduce light efficiency simultaneously.When using Halogen lamp LED or xenon lamp as light source, its major defect is that light efficiency is not high, the life-span is not long, not only makes complete-vehicle oil consumption high, not environmental protection, and in the time of driving at night, car light damages and also can cause security risk.
Along with scientific and technical development, the LED that light efficiency is high, the life-span is long enters after lighting field, various enterprises and research institution are also applied to automotive lamp in plan by great power LED, but because LED is semi-conductor electricity sub-element, its principle of luminosity and self-characteristic are very not identical with conventional light source.Temperature during such as the work of Halogen lamp LED, xenon lamp is all very high and To Be Protected from Heat, and the temperature in LED when work is relatively low and To Be Protected from Heat, its chip temperature is generally no more than 100 degree, and the every rising 10 of operating temperature is spent, its life-span approximately shortens half, and light efficiency reduces approximately 3%.So when LED is used for automotive lamp, its heat radiation is most important.
At present some methods that solve LED heat radiation mainly: in car body inside, LED's installs heat abstractor below additional, such as installing heat-pipe radiating apparatus additional and aluminium radiator adds fan etc.Adopt aforesaid way to have following defect: as installed air-cooled finned radiator therein additional, its radiating effect is poor, because the space at car light rear portion do not circulate compared with occluded air, and near the very high engine of temperature; As using heat-pipe radiator or water-filled radiator, its complex structure cost is high.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide one to expose cooling type LED car light, it is simple in structure, good heat dissipation effect, and cost is low.
The cooling type LED car light that exposes of the present invention, comprises heat sink, it is characterized in that: distance light LED light source and dipped beam LED light source are installed on heat sink.
Further on the heat sink of preferred described distance light LED light source and dipped beam LED light source surrounding, be distributed with several radiating fins.
By said structure, remove the Transparent lamp shade in current automotive lamp front, what replace lampshade outline is outstanding radiating fin.Owing to there is no the sealing process of Transparent lamp shade, radiating fin can contact with the moving air outside vehicle body, has ensured that thus radiator can normally dispel the heat; Because LED light source size I is to be installed on less space, so the more multizone of whole car light is radiating fin, meet the heat radiation requirement of great power LED with this.
In order further to improve the utilization rate of distance light LED light source and dipped beam LED light source, be coated with reflective membrane at described distance light LED light source and the contiguous radiating fin surface of dipped beam LED light source.
When use, under the effect of reflective membrane, play the effect of reflection shield, distance light LED light source is arranged in darker reflection cavity, and it is less that its rising angle becomes after multiple reflections, can make light outrange.Dipped beam LED light source is arranged in more shallow reflection cavity, and its rising angle is large, can irradiate nearer region.
The distribution of radiating fin of the present invention on heat sink main preferably below several schemes:
One, described radiating fin on heat sink for being laterally uniformly distributed.
Two, described radiating fin on heat sink for being longitudinally uniformly distributed.
Three, described radiating fin is uniformly distributed for staggered on heat sink.
Four, described radiating fin is ring-like distribution on heat sink.
Compared with prior art, the present invention has following beneficial effect:
1, by the present invention, utilizing high power LED is as the light source of headlight for vehicles, not only light efficiency is high, can reduce car load operating cost, accomplish energy-saving and emission-reduction, and because the life-span of its overlength, can make that car load is in service exempts to change light source throughout one's life, while having avoided use other light sources, driving at night is turned off the light and is caused potential safety hazard or driving puzzlement simultaneously.
2, next the design has removed the Transparent lamp shade of traditional car light, the radiating fin of LED lamp is exposed in the natural air outside vehicle body, thereby ensure the good heat radiating of LED, particularly in Vehicle Driving Cycle process, fin can be subject to the pressure cooling effect of relative wind, make the heat radiation of LED better, thereby high light efficiency and the long-life of LED car light are more ensured, its structure is simpler, cost is lower, reliability is higher, installation and maintenance are easier, has expanded the visual line of sight of dazzle light and dipped headlights simultaneously.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the right TV structure schematic diagram of Fig. 1;
Fig. 3 is that Fig. 1 looks up structural representation;
In figure: 1, heat sink 2, distance light LED light source 3, dipped beam LED light source 4, radiating fin 5, reflective membrane.
Detailed description of the invention
Below the invention will be further described by specific embodiment, but not in order to limit the present invention, all within the present invention's spirit and principle, any amendment of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
As shown in Figure 1, expose cooling type LED car light, comprise heat sink 1, distance light LED light source 2 and dipped beam LED light source 3 are installed on heat sink 1, on the heat sink 1 of distance light LED light source 2 and dipped beam LED light source 3 surroundings, be distributed with several radiating fins 4, distance light LED light source 2 and dipped beam LED light source 3 contiguous radiating fin 4 surfaces are coated with reflective membrane 5.
Radiating fin 4 described in the present embodiment on heat sink 1 for being laterally uniformly distributed; Heat sink 1 uses aluminium alloy or the heat-conducting plastic that thermal conductivity is high to make.Described in the time of practical application, radiating fin 4 can also be for being longitudinally uniformly distributed or other distribution modes on heat sink 1, and concrete distribution can be determined according to epoch aesthetic conceptions and technical conditions.
When use, the present invention is arranged on to car body by heat sink 1 lamp place is installed, owing to having removed the Transparent lamp shade in current automotive lamp front, what replace lampshade outline is outstanding radiating fin 4, thereby there is no the sealing process of Transparent lamp shade, radiating fin 4 can contact with the moving air outside vehicle body, has ensured thus normal radiating effect.
By the present embodiment, calculate according to the light efficiency 100Lm/W of current main flow LED, the illuminating effect of 30 watts of LED of use has been better than the effect of 60 watts of Halogen lamp LEDs, approaches the effect of 35 watts of xenon lamps.The required area of dissipation of 30WLED, needs 30 square centimeters of calculating altogether to need 900 square centimeters by every watt of LED of natural air cooled situation.
By the present embodiment, be also not difficult to analyze, when the power of distance light LED light source 2 and dipped beam LED light source 3 hour, also can adopt reflector to substitute heat sink 1 and radiating fin 4, thereby reach the object that distance light LED light source 2 and dipped beam LED light source 3 dispel the heat; If distance light LED light source 2 power are larger, and dipped beam LED light source 3 power are hour, can also adopt distance light LED light source 2 to be arranged on heat sink 1, the technical approach that utilizes radiating fin 4 to dispel the heat, and dipped beam LED light source 3 adopts reflector to install.
In the time of practical application, radiating mode of the present invention can also be applied on other heater element, also can be used on other products, as Motorcycle headlight etc.
Claims (7)
1. expose a cooling type LED car light, comprise heat sink (1), it is characterized in that: distance light LED light source (2) and dipped beam LED light source (3) are installed on heat sink (1).
2. the cooling type LED car light that exposes according to claim 1, is characterized in that: on the heat sink (1) of described distance light LED light source (2) and dipped beam LED light source (3) surrounding, be distributed with several radiating fins (4).
3. the cooling type LED car light that exposes according to claim 2, is characterized in that: contiguous radiating fin (4) surface of described distance light LED light source (2) and dipped beam LED light source (3) is coated with reflective membrane (5).
4. the cooling type LED car light that exposes according to claim 3, is characterized in that: described radiating fin (4) is upper for being laterally uniformly distributed at heat sink (1).
5. the cooling type LED car light that exposes according to claim 3, is characterized in that: described radiating fin (4) is upper for being longitudinally uniformly distributed at heat sink (1).
6. the cooling type LED car light that exposes according to claim 3, is characterized in that: described radiating fin (4) is upper at heat sink (1) is staggered being uniformly distributed.
7. the cooling type LED car light that exposes according to claim 3, is characterized in that: described radiating fin (4) (1) on heat sink is ring-like distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310134960.2A CN104110624A (en) | 2013-04-18 | 2013-04-18 | Exposed-cooling type LED vehicle lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310134960.2A CN104110624A (en) | 2013-04-18 | 2013-04-18 | Exposed-cooling type LED vehicle lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104110624A true CN104110624A (en) | 2014-10-22 |
Family
ID=51707535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310134960.2A Pending CN104110624A (en) | 2013-04-18 | 2013-04-18 | Exposed-cooling type LED vehicle lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104110624A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508962A (en) * | 2016-03-01 | 2016-04-20 | 重庆桑耐美光电科技有限公司 | LED vehicle lamp with partially exposed heat radiator |
| CN106555981A (en) * | 2015-09-21 | 2017-04-05 | 广州日灿电子科技有限公司 | Variable color-temperature LED automobile headlight |
-
2013
- 2013-04-18 CN CN201310134960.2A patent/CN104110624A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555981A (en) * | 2015-09-21 | 2017-04-05 | 广州日灿电子科技有限公司 | Variable color-temperature LED automobile headlight |
| CN105508962A (en) * | 2016-03-01 | 2016-04-20 | 重庆桑耐美光电科技有限公司 | LED vehicle lamp with partially exposed heat radiator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102095151A (en) | LED (light-emitting diode) automobile high beam light with mixed light distribution system | |
| CN102628577B (en) | A kind of high efficiency automotive LED Fog-proof light | |
| CN201916826U (en) | Light emitting diode (LED) automobile high beam lamp with mixed trimming system | |
| CN103807719A (en) | Liquid-cooled LED headlamp for means of transportation | |
| CN203258540U (en) | Circulating water cooling type light emitting diode (LED) car lamp | |
| CN207599594U (en) | A kind of LED specular removals headlamp tool | |
| CN104110624A (en) | Exposed-cooling type LED vehicle lamp | |
| CN202469815U (en) | Efficient automobile LED fog-proof lamp | |
| CN203258539U (en) | Exposed heat dissipation type light emitting diode (LED) car lamp | |
| CN101526201A (en) | LED lamp and heat radiating device thereof | |
| CN204227272U (en) | A kind of LED automobile headlight | |
| CN105351856A (en) | LED (light-emitting diode) locomotive headlamp | |
| CN205782488U (en) | A kind of LED automobile headlamp | |
| CN205332041U (en) | LED locomotive head -light | |
| CN203823623U (en) | Liquid cooling type LED (light emitting diode) headlamp used for vehicle | |
| CN203068371U (en) | High beam lamp of automobile | |
| CN203980070U (en) | Reflecting LED headlight module for a kind of panzer | |
| CN209262915U (en) | A kind of LED condenser formula list dipped beam mould group | |
| CN106122873A (en) | A kind of automobile lamp radiator | |
| CN202733672U (en) | Light-emitting diode (LED) light source road lamp | |
| CN202302993U (en) | Illumination improved structure of road lamp | |
| CN101701678A (en) | Design method for high-power LED lamp | |
| CN202813030U (en) | LED streetlamp module | |
| CN204026439U (en) | A kind of automobile LED headlight module | |
| CN204420789U (en) | A kind of LED down of easy heat radiation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141022 |