CN104728809A - Passive cooling structure design of automobile LED headlamp - Google Patents
Passive cooling structure design of automobile LED headlamp Download PDFInfo
- Publication number
- CN104728809A CN104728809A CN201510131821.3A CN201510131821A CN104728809A CN 104728809 A CN104728809 A CN 104728809A CN 201510131821 A CN201510131821 A CN 201510131821A CN 104728809 A CN104728809 A CN 104728809A
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- CN
- China
- Prior art keywords
- radiator
- automobile
- heat radiation
- led headlamp
- led
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/42—Forced cooling
- F21S45/43—Forced cooling using gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Abstract
The invention discloses a passive cooling structure design of an automobile LED headlamp, and belongs to the technical field of LED lamp applications. According to the technical scheme, the passive cooling structure design of the automobile LED headlamp is characterized by comprising an LED light source, an MCPCB, a reflector cup and a radiator, the reflector cup is arranged on the upper portion of the radiator in a nested mode, the MCPCB is nested in the radiator, and the LED light source is arranged on the MCPCB. According to the passive cooling structure design of the automobile LED headlamp, by means of the inserted type radiator design, the convection intensity of the whole and the surrounding air is strengthened, and the temperature of the interior of the headlamp can be effectively reduced.
Description
Technical field
The present invention relates to a kind of passive heat radiation structural design of automobile LED headlamp, belong to LED applied technical field.
Background technology
LED belongs to the cold light source of high heating, the LED photovoltaic conversion efficiency of prior art only reaches 10% ~ 20%, all the other are all converted into heat, but have a clear superiority in relative to 5% luminous efficiency of conventional incandescent, current LED produces and research and development department is is researching and developing high-capacity LED to overcome LED and the gap problem of other universal light sources on luminous flux.But large-power LED size is little, light efficiency is low, heat flow density is high, if unreasonable constraint heat, the gathering of chip heat will be caused, junction temperature raises, and then occur the phenomenons such as light efficiency declines, red shift of wavelength, energy gap reduction, encapsulating material are aging.Automotive LED headlamp is generally array-type LED module, the dense arrangement of light source, the hot environment of car light inside, makes heat problem become the subject matter of its volume production of restriction, is therefore necessary to carry out effective heat dissipation design to the LED headlamp of automobile.
Summary of the invention
The object of this invention is to provide a kind of passive heat radiation structural design of automobile LED headlamp, to solve the efficiently radiates heat problem of the dense arrangement of automotive LED headlamp internal light source, the hot environment of car light inside.
The present invention adopts following technical scheme: a kind of passive heat radiation structural design of automobile LED headlamp, it is characterized in that, comprise LED light source, MCPCB plate, reflector, radiator, the nested top being arranged at described radiator of described reflector, described MCPCB plate is nested in described radiator, and described LED light source is arranged on described MCPCB plate.
Preferably, described radiator comprises fan, fin, and described fan is used for strengthening convection intensity that is overall and surrounding air.
Preferably, described fin is rectangle, and described fin is multichip connection.
Preferably, the spacing between described fin is more than or equal to 1.5mm, and the spacing increasing described fin can promote cross-ventilation.
Preferably, the thickness of described fin is more than or equal to 1mm, with bear transient heat flow by time transient thermal load impact.
Preferably, described LED light source is made up of the OSRAM automobile-used LED array of seven 1.5W.
The beneficial effect that the present invention reaches: install fan in (1) radiator additional and can strengthen convection intensity that is overall and surrounding air, effectively can reduce the temperature of car light inside; (2) radiator adopts blade inserting heat dissipation design, can increasing heat radiation area, increases fin pitch simultaneously, to increase cross-ventilation, promotes heat radiation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of LED array of the present invention.
The implication marked in figure: 1-reflector, 2-MCPCB plate, 3-radiator, 4-LED light source.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Fig. 1 is structural representation of the present invention, Fig. 2 is the structural representation of LED array of the present invention, the present invention proposes a kind of passive heat radiation structural design of automobile LED headlamp, comprise LED light source 4, MCPCB plate 2, reflector 1, radiator 3, the nested top being arranged at radiator 3 of reflector 1, MCPCB plate 2 is nested in radiator 3, and LED light source 4 is arranged on MCPCB plate 2.
Radiator 3 comprises fan, fin, and fan is used for strengthening convection intensity that is overall and surrounding air; Fin is rectangle, and fin is multichip connection; Spacing between fin is more than or equal to 1.5mm, and the spacing increasing fin can promote cross-ventilation; The thickness of fin is more than or equal to 1mm, with bear transient heat flow by time transient thermal load impact; LED light source 4 is made up of the OSRAM automobile-used LED array of seven 1.5W.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (6)
1. the passive heat radiation structural design of an automobile LED headlamp, it is characterized in that, comprise LED light source, MCPCB plate, reflector, radiator, the nested top being arranged at described radiator of described reflector, described MCPCB plate is nested in described radiator, and described LED light source is arranged on described MCPCB plate.
2. the passive heat radiation structural design of a kind of automobile LED headlamp according to claim 1, is characterized in that, described radiator comprises fan, fin, and described fan is used for strengthening convection intensity that is overall and surrounding air.
3. the passive heat radiation structural design of a kind of automobile LED headlamp according to claim 2, is characterized in that, described fin is rectangle, and described fin is multichip connection.
4. the passive heat radiation structural design of a kind of automobile LED headlamp according to claim 3, is characterized in that, the spacing between described fin is more than or equal to 1.5mm, and the spacing increasing described fin can promote cross-ventilation.
5. the passive heat radiation structural design of a kind of automobile LED headlamp according to claim 4, is characterized in that, the thickness of described fin is more than or equal to 1mm, with bear transient heat flow by time transient thermal load impact.
6. the passive heat radiation structural design of a kind of automobile LED headlamp according to claim 1, is characterized in that, described LED light source is made up of the OSRAM automobile-used LED array of seven 1.5W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510131821.3A CN104728809A (en) | 2015-03-25 | 2015-03-25 | Passive cooling structure design of automobile LED headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510131821.3A CN104728809A (en) | 2015-03-25 | 2015-03-25 | Passive cooling structure design of automobile LED headlamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104728809A true CN104728809A (en) | 2015-06-24 |
Family
ID=53452964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510131821.3A Pending CN104728809A (en) | 2015-03-25 | 2015-03-25 | Passive cooling structure design of automobile LED headlamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104728809A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650566A (en) * | 2016-01-27 | 2016-06-08 | 佛山市南海区联合广东新光源产业创新中心 | LED headlamp with heat dissipation structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080025715A (en) * | 2008-02-29 | 2008-03-21 | 삼성전기주식회사 | Light emitting diode module for backlight unit and backlight using the same |
| US20080191225A1 (en) * | 2007-02-12 | 2008-08-14 | Medendorp Nicholas W | Methods of forming packaged semiconductor light emitting devices having front contacts by compression molding |
| CN201162983Y (en) * | 2008-03-04 | 2008-12-10 | 常州星宇车灯股份有限公司 | High-efficiency cooling type automobile front shining lamp |
| CN201242126Y (en) * | 2008-07-18 | 2009-05-20 | 上海小糸车灯有限公司 | Heat sink radiating assembly of LED light source automobile head lamp |
| GB2457971A (en) * | 2008-02-29 | 2009-09-02 | Oliver Blackwell | Light emitting diode street lighting |
| CN201885065U (en) * | 2010-10-18 | 2011-06-29 | 青岛信控电子技术有限公司 | High-power light-emitting diode (LED) projection lamp |
| CN203453808U (en) * | 2013-07-17 | 2014-02-26 | 晶科电子（广州）有限公司 | LED light source with good heat dissipation effect |
| CN104214662A (en) * | 2014-08-27 | 2014-12-17 | 苏州骏发精密机械有限公司 | LED (light-emitting diode) automobile headlamp cover |
-
2015
- 2015-03-25 CN CN201510131821.3A patent/CN104728809A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080191225A1 (en) * | 2007-02-12 | 2008-08-14 | Medendorp Nicholas W | Methods of forming packaged semiconductor light emitting devices having front contacts by compression molding |
| KR20080025715A (en) * | 2008-02-29 | 2008-03-21 | 삼성전기주식회사 | Light emitting diode module for backlight unit and backlight using the same |
| GB2457971A (en) * | 2008-02-29 | 2009-09-02 | Oliver Blackwell | Light emitting diode street lighting |
| CN201162983Y (en) * | 2008-03-04 | 2008-12-10 | 常州星宇车灯股份有限公司 | High-efficiency cooling type automobile front shining lamp |
| CN201242126Y (en) * | 2008-07-18 | 2009-05-20 | 上海小糸车灯有限公司 | Heat sink radiating assembly of LED light source automobile head lamp |
| CN201885065U (en) * | 2010-10-18 | 2011-06-29 | 青岛信控电子技术有限公司 | High-power light-emitting diode (LED) projection lamp |
| CN203453808U (en) * | 2013-07-17 | 2014-02-26 | 晶科电子（广州）有限公司 | LED light source with good heat dissipation effect |
| CN104214662A (en) * | 2014-08-27 | 2014-12-17 | 苏州骏发精密机械有限公司 | LED (light-emitting diode) automobile headlamp cover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650566A (en) * | 2016-01-27 | 2016-06-08 | 佛山市南海区联合广东新光源产业创新中心 | LED headlamp with heat dissipation structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150624 |