CN104676415A - Vehicle LED (light emitting diode) headlamp heat dissipation system and vehicle headlamp - Google Patents
Vehicle LED (light emitting diode) headlamp heat dissipation system and vehicle headlamp Download PDFInfo
- Publication number
- CN104676415A CN104676415A CN201510032339.4A CN201510032339A CN104676415A CN 104676415 A CN104676415 A CN 104676415A CN 201510032339 A CN201510032339 A CN 201510032339A CN 104676415 A CN104676415 A CN 104676415A
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- China
- Prior art keywords
- heat dissipation
- dissipation channel
- vehicle
- led
- blade fan
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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
- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses a vehicle LED (light emitting diode) headlamp heat dissipation system and a vehicle headlamp. The heat dissipation system comprises an LED light source module, a heat dissipation channel and a bladeless fan; the heat dissipation channel is provided with an air inlet and an air outlet; the air inlet faces the front side of a vehicle; the air outlet faces the rear side of the vehicle; the LED light source module is arranged on the outer wall surface of the heat dissipation channel; the bladeless fan is arranged in the heat dissipation channel; an air inlet of the bladeless fan corresponds to the air inlet of the heat dissipation channel; and an air outlet of the bladeless fan corresponds to the air outlet of the heat dissipation channel. The vehicle headlamp comprises a lamp shell, a light transmitting surface cover and the heat dissipation system. A strong convection active heat dissipation mode is adopted, heat generated during working of the LED light source module can be dissipated timely without the aid of a heat sink, the problems that light failure is caused and the service life is shortened due to LED heating are solved, the weight of the headlamp can be reduced, the size of the headlamp is reduced, the cost is saved, and the diversified design of the headlamp is implemented.
Description
Technical field
The present invention relates to vehicular field, particularly relate to a kind of vehicle heat dissipation system for LED headlamp and automotive headlamp.
Background technology
At present, automotive headlamp adopts xenon lamp mostly, and its circuit structure is complicated and need high-tension circuit, comparatively dangerous, and the weak point such as it is low to there is conversion efficiency, and service life is not high, strong to the penetration power of fog, power consumption is large.And the advantage such as LED light source has that volume is little, the life-span long, response is fast, stable performance, reliability voltage that is high, that require are low and electric current is little.Therefore, people start trial LED light source and replace xenon lamp in recent years.But whether the life-span of LED and luminous efficiency and its radiating effect are well closely related, this is because LED dispels the heat, its junction temperature bad is just high, and its junction temperature one is high, the life-span of LED and luminous efficiency just poor.Thus, the LED light source of automotive headlamp be made to keep permanent life-span and good luminous efficiency, and what first will solve is exactly its heat dissipation problem.At present, still comparatively effective solution is not had in prior art.
Summary of the invention
The invention provides a kind of vehicle heat dissipation system for LED headlamp and automotive headlamp, the problem that the vehicle LED headlamp radiating effect for solving prior art is not good.
The technical solution adopted for the present invention to solve the technical problems is: a kind of vehicle heat dissipation system for LED headlamp, comprise LED light source module, also comprise heat dissipation channel, without blade fan, heat dissipation channel has the air inlet towards vehicle front side and the air outlet towards vehicle rear-side; LED light source module is arranged at the outside wall surface of heat dissipation channel, is installed on heat dissipation channel inside without blade fan, and the air inlet of the corresponding heat dissipation channel of this air inlet without blade fan, the air outlet of the corresponding heat dissipation channel of the air outlet without blade fan.
Further, also comprise thermocouple, this installation of TC in described heat dissipation channel, and is electrically connected without blade fan with described.
Further, described without blade fan comprise pedestal and be located at this pedestal side go out vane, magnetic suspension motor fan is installed in pedestal, and be provided with the described air inlet without blade fan, the described air outlet without blade fan is located at out vane, this goes out the shape of vane and the mating shapes of described heat dissipation channel, and this goes out vane and described heat dissipation channel is parallel to each other.
Further, the described air inlet without blade fan is also provided with airstrainer.
Further, described thermocouple is flush-mounted on the wall body of the heat dissipation channel below corresponding described LED light source module.
Further, described without blade fan between described LED light source module and the air inlet of described heat dissipation channel.
Further, described heat dissipation channel is metal material.
A kind of automotive headlamp, comprises lamp housing and printing opacity face shield, and lamp housing surrounds a light-source chamber with the printing opacity face shield being located at its front end; It is characterized in that: also comprise vehicle heat dissipation system for LED headlamp as above, lamp housing is installed on the outside wall surface of described heat dissipation channel, and lamp housing bottom surface is provided with opening of stepping down, embed in light-source chamber for described LED light source module.
Further, also comprise reflector, this reflector is installed in described light-source chamber, and described LED light source module is wrapped up in local.
Further, side-marker lamp, driving at night lamp and steering indicating light are also installed in described light-source chamber.
Compared to prior art, the present invention has following beneficial effect:
1, the present invention is by the described heat dissipation channel of design, and coordinate without blade fan, the heat that the LED light source module work of automotive headlamp is produced can vertical transmission on the wall body of heat dissipation channel, one air blast cold wind formed in vehicle travel process enters from the air inlet of heat dissipation channel, the heat that LED light source module produces is taken away while flowing through heat dissipation channel, finally discharge from the air outlet of heat dissipation channel, when vehicle is in low-speed running state or inactive state, then can by starting without blade fan, strengthen the cross-ventilation in heat dissipation channel, forced heat radiation is carried out to LED light source module, thus, the present invention can realize high efficiency and heat radiation to the LED light source module of vehicle LED headlamp, make the life-span of LED light source module longer, luminous efficiency is better, in addition, the present invention adopts without blade fan, can avoid bringing resistance when entering heat dissipation channel to extraneous air blast, thus makes the convection coefficient in heat dissipation channel reach optimum value,
2, the present invention is by arranging described thermocouple further, and make it be electrically connected with without blade fan, make the present invention can be detected the temperature of whole system by thermocouple, and start without blade fan when system temperature rises to the temperature upper limit preset, close without blade fan when system temperature drops to default lowest temperature, therefrom reach the effect from main control, avoid artificial manipulation, use convenient;
3, the present invention adopts magnetic suspension motor fan to replace tradition without the air pressure generator of blade fan further, not only can reduce the thickness of pedestal, and the installation without blade fan can also be made not to be subject to the restriction of placed angle, and longer service life.
Below in conjunction with drawings and Examples, the present invention is described in further detail; But a kind of vehicle heat dissipation system for LED headlamp of the present invention and automotive headlamp are not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation (containing reflector) of vehicle heat dissipation system for LED headlamp of the present invention;
Fig. 2 is the axonometric drawing of vehicle heat dissipation system for LED headlamp of the present invention;
Fig. 3 is the axonometric drawing of automotive headlamp of the present invention;
Fig. 4 is the decomposing schematic representation of automotive headlamp of the present invention.
Detailed description of the invention
Embodiment, refer to shown in Fig. 1, Fig. 2, a kind of vehicle heat dissipation system for LED headlamp of the present invention, comprise LED light source module 1, also comprise heat dissipation channel 5, without blade fan 4, heat dissipation channel 5 adopts the metal (such as aluminium alloy) with higher heat-conductivity to be made, and its inside is designed to streamlined, and it has the air inlet 51 towards vehicle front side and the air outlet 52 towards vehicle rear-side; LED light source module 1 is arranged at the outside wall surface of the upper wall body of heat dissipation channel 5, heat dissipation channel 5 is installed on inner without blade fan 4, and the air inlet 51 of the corresponding heat dissipation channel 5 of this air inlet 411 without blade fan 4, the air outlet 52 of the corresponding heat dissipation channel 5 of the air outlet without blade fan 4.Specifically, this is without the position 54 of blade fan 4 between described LED light source module 1 and the air inlet of described heat dissipation channel 5.
Preferred as one, the present invention also comprises thermocouple 3, and this thermocouple 3 is installed on described heat dissipation channel 5, and is electrically connected without blade fan 4 with described.Specifically, this thermocouple 3 is flush-mounted on the wall body of the heat dissipation channel 5 below corresponding described LED light source module 1 (corresponding on the wall body of this heat dissipation channel 5 be provided with one for the aperture 53 of setting-in thermocouple 3), it can detect the temperature of whole system, start without blade fan 4 when detecting temperature upper limit (such as 80 DEG C) that temperature reaches pre-set, when the temperature of system drops to pre-set lowest temperature (such as 50 DEG C), close without blade fan 4.In addition, the present invention also can not adopt thermocouple, but adopt the mode of manual control to control without blade fan, such as at the driver's cabin of automobile, a manipulation button (if this vehicle is motorcycle, then can install manipulation button on the handlebar of motorcycle) is installed.
Preferred as one, described comprise pedestal 41 without blade fan 4 and be located at this pedestal 41 side go out vane 40, magnetic suspension motor fan 410 is installed in pedestal 41, and be provided with the described air inlet 411 without blade fan 4, the described air outlet without blade fan 4 is located at out vane 40, this goes out the shape of vane 40 and the mating shapes of described heat dissipation channel 5, and this goes out vane 40 and described heat dissipation channel 5 is parallel to each other.Specifically, upper wall body and the lower wall of described heat dissipation channel 5 are respectively flat wall, and left wall body is vertical wall, and right wall body is circular arc wall.
Preferred as one, describedly without outside the air inlet 411 of blade fan 4, dismountable airstrainer 9 is also installed, can prevents the molecules such as dust from entering interior without blade fan 4 and affecting its performance.
A kind of vehicle heat dissipation system for LED headlamp of the present invention, the heat vertical transmission that its LED light source module 1 produces is on the wall body of heat dissipation channel 5.When vehicle high-speed or higher speed travel, one air blast cold wind can be formed and enter from the air inlet 51 of heat dissipation channel 5, flow through heat dissipation channel 5 and take away the heat that LED light source module 1 produces, finally discharging from the air outlet 52 of heat dissipation channel 5.When vehicle is in low-speed running state or inactive state, the air-flow entered in heat dissipation channel 5 can weaken, and the heat taken away reduces, and makes the temperature of whole system increase.When the temperature of whole system rises to the temperature upper limit that thermocouple 3 presets, start without blade fan 4, utilize without the cross-ventilation in the wind-force enhancing heat dissipation channel 5 of blade fan 4 generation, thus forced heat radiation is carried out to the heat being delivered to heat dissipation channel 5; Treat that the heat of whole system reduces, when temperature is reduced to the lowest temperature that thermocouple 3 presets, close without blade fan 4, therefrom reach the effect of the saving energy further.
A kind of vehicle heat dissipation system for LED headlamp of the present invention, adopt strong convection active heat removal, without the need to additional radiator just can LED light source module 1 work produce heat distribute in time, not only solve and to be generated heat the problem such as such as light decay, reduction of service life etc. caused by LED, the weight (without the need to additional radiator) of automotive headlamp can also being alleviated, reduce volume, being conducive to the cost-saving design with realizing automotive headlamp.
Refer to shown in Fig. 3, Fig. 4, a kind of automotive headlamp of the present invention, it comprises lamp housing 8, printing opacity face shield 7 and above-mentioned vehicle heat dissipation system for LED headlamp.Lamp housing 8 surrounds a light-source chamber 6 with the printing opacity face shield 7 being located at its front end, this lamp housing 8 is installed on the outside wall surface of described heat dissipation channel 5, and the position of the corresponding described LED light source module of the end face of this lamp housing 8 is provided with one steps down opening 81, described LED light source module 1 is stepped down, described LED light source module 1 can be embedded in light-source chamber 6.
Preferred as one, the present invention also comprises reflector 2, and this reflector 2 is installed in described light-source chamber 6, and described LED light source module 1 is wrapped up in local.Specifically, this reflector 2 has curved reflecting surface, its rear side to LED light source module 1, upside, the left and right sides are wrapped up, most light that described LED light source module 1 is produced are unified directive printing opacity face shield 7 after the reflection of this reflector 2, thus improves brightness and the range of automotive headlamp.
Side-marker lamp 61, driving at night lamp 62 and steering indicating light 63 are also installed in described light-source chamber 6.
A kind of automotive headlamp of the present invention, it can be the headlight of various automobile, also can be the headlight of motorcycle.
Above-described embodiment is only used for further illustrating a kind of vehicle heat dissipation system for LED headlamp of the present invention and automotive headlamp; but the present invention is not limited to embodiment; every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all fall in the protection domain of technical solution of the present invention.
Claims (10)
1. a vehicle heat dissipation system for LED headlamp, comprises LED light source module, it is characterized in that: also comprise heat dissipation channel, without blade fan, heat dissipation channel has the air inlet towards vehicle front side and the air outlet towards vehicle rear-side; LED light source module is arranged at the outside wall surface of heat dissipation channel, is installed on heat dissipation channel inside without blade fan, and the air inlet of the corresponding heat dissipation channel of this air inlet without blade fan, the air outlet of the corresponding heat dissipation channel of the air outlet without blade fan.
2. vehicle heat dissipation system for LED headlamp according to claim 1, is characterized in that: also comprise thermocouple, and this installation of TC in described heat dissipation channel, and is electrically connected without blade fan with described.
3. vehicle heat dissipation system for LED headlamp according to claim 1, it is characterized in that: described without blade fan comprise pedestal and be located at this pedestal side go out vane, magnetic suspension motor fan is installed in pedestal, and be provided with the described air inlet without blade fan, the described air outlet without blade fan is located at out vane, this goes out the shape of vane and the mating shapes of described heat dissipation channel, and this goes out vane and described heat dissipation channel is parallel to each other.
4. vehicle heat dissipation system for LED headlamp according to claim 1, is characterized in that: the described air inlet without blade fan is also provided with airstrainer.
5. vehicle heat dissipation system for LED headlamp according to claim 2, is characterized in that: described thermocouple is flush-mounted on the wall body of the heat dissipation channel below corresponding described LED light source module.
6. vehicle heat dissipation system for LED headlamp according to claim 1, is characterized in that: described without blade fan between described LED light source module and the air inlet of described heat dissipation channel.
7. vehicle heat dissipation system for LED headlamp according to claim 1, is characterized in that: described heat dissipation channel is metal material.
8. an automotive headlamp, comprises lamp housing and printing opacity face shield, and lamp housing surrounds a light-source chamber with the printing opacity face shield being located at its front end; It is characterized in that: also comprise the vehicle heat dissipation system for LED headlamp according to any one of claim 1-7, lamp housing is installed on the outside wall surface of described heat dissipation channel, and lamp housing bottom surface is provided with opening of stepping down, embed in light-source chamber for described LED light source module.
9. automotive headlamp according to claim 1, is characterized in that: also comprise reflector, this reflector is installed in described light-source chamber, and described LED light source module is wrapped up in local.
10. automotive headlamp according to claim 1, is characterized in that: be also provided with side-marker lamp, driving at night lamp and steering indicating light in described light-source chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032339.4A CN104676415A (en) | 2015-01-22 | 2015-01-22 | Vehicle LED (light emitting diode) headlamp heat dissipation system and vehicle headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032339.4A CN104676415A (en) | 2015-01-22 | 2015-01-22 | Vehicle LED (light emitting diode) headlamp heat dissipation system and vehicle headlamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104676415A true CN104676415A (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510032339.4A Pending CN104676415A (en) | 2015-01-22 | 2015-01-22 | Vehicle LED (light emitting diode) headlamp heat dissipation system and vehicle headlamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN104676415A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168334A (en) * | 2016-08-24 | 2016-11-30 | 广州共铸科技股份有限公司 | LED light source component, car light radiating module and automobile LED headlight system |
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2015
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Patent Citations (9)
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| CN101885314A (en) * | 2010-07-20 | 2010-11-17 | 林友旺 | Vehicle solar-cell-powered semiconductor air-conditioning system |
| CN102352788A (en) * | 2011-06-08 | 2012-02-15 | 黄锦林 | Wind turbine turbocharger |
| CN202257413U (en) * | 2011-07-11 | 2012-05-30 | 深圳市研派科技有限公司 | Novel heat dissipation pad for notebook computer |
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| CN203848151U (en) * | 2014-04-18 | 2014-09-24 | 广州市悦照车灯有限公司 | Automotive LED two-light headlamp with lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106168334A (en) * | 2016-08-24 | 2016-11-30 | 广州共铸科技股份有限公司 | LED light source component, car light radiating module and automobile LED headlight system |
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Application publication date: 20150603 |
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