CN103175083B - Headlamp with means for air guidance within the headlamp housing - Google Patents
Headlamp with means for air guidance within the headlamp housing Download PDFInfo
- Publication number
- CN103175083B CN103175083B CN201210559257.1A CN201210559257A CN103175083B CN 103175083 B CN103175083 B CN 103175083B CN 201210559257 A CN201210559257 A CN 201210559257A CN 103175083 B CN103175083 B CN 103175083B
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- China
- Prior art keywords
- headlight
- air
- ducted body
- housing
- component
- Prior art date
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Classifications
-
- 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
- F21S45/30—Ventilation or drainage of lighting devices
- F21S45/33—Ventilation or drainage of lighting devices specially adapted for 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
Abstract
The headlight (1) has a housing (3) having a light exit opening, and a transparent cover plate (8) for covering the light exit opening. The ventilation opening (2) and vent (4) are arranged in the housing. The housing is provided with a hollow structure containing air inlet (13), air outlet (14) and a dimensionally stable pipe section arranged between air inlet and air outlet. The hollow structure is configured to guide the air stream flowing from ventilation opening to the vent within the housing.
Description
Technical field
The present invention relates to a kind of headlight for motor vehicle, it is included：Housing with light output hole, covering light output
The transparent mask in hole, at least one air vent in the housing and at least one vent.
Background technology
This headlight is by known to DE10026487A1.
Under certain weather conditions, the mask of headlight can be from internal solidifying water.This is mainly after headlight operation
Occur during cooling, if the moisture of the originally also hot air inside headlight is condensed on the mask for turning cold.Condensate
Outward appearance and the transmission of mask can be affected in operation next time.
The mask of solidifying water should again be dried after motor-driven vehicle going certain distance.In known headlight, this
A little realized by the air vent and vent on headlight.Pressure reduction between the hole, producing in motion is for more
The air changed in headlight is changed, and therefore is discharged moisture.The discharge of moisture is substantially controlled by the amount and speed of air
System, the air is encountered mask or is flow through from beside it.
Additionally, the amount and speed that flow through the air of headlight have an effect on discharge of the heat from headlight, this has
It is even more important in the headlight of semiconductor light source.This semiconductor light source generally has metal cooling body, and the cooling body is partly being led
The heat for discharging in a semiconductor material is absorbed when body light source runs, and is discharged in the air of headlight.
In modern automotive, headlight still makes the design element of the attractive appearance of motor vehicle.They are for this purpose
With the shield element positioned at enclosure interior, the shield element for example conceals the technology element of the component for producing light, the group
Part should be can't see from the outside.Here, the part that should not be hidden of shield element and the component（Especially lens and/or reflection
The light gasing surface of device）Between gap occurs.Prespecified in terms of due to moulding, this gap is also designed to more and more narrow.
Before the gap of the shield element itself and the compact design stayed between shield element and remaining headlight part can affect
Air-flow in headlight, and therefore the discharge of impact moisture and/or heat from headlight.
The content of the invention
In this context, it is an object of the present invention to provide a kind of headlight of aforementioned type, even if it is in enclosure interior
Key position on also achieve preferably ventilation.
This purpose is achieved by the feature of claim 1.By the area of headlight and the known headlight of the present invention
It is not that the headlight has guide device, it is used for guiding that the air-flow of vent is flowed to from air vent in the inside of housing, and
And it has the ducted body of dimensionally stable, the ducted body has air inlet and at least one gas outlet, and with positioned at air inlet
And the conduit section of the dimensionally stable between at least one gas outlet.
By the ducted body using dimensionally stable as guiding air device, the present invention can targetedly flowing through
The air of headlight is directed on the surface and/or region to be flowed in enclosure interior, and the surface and/or region refer to transparent
Another region of the inner surface of mask, the surface of cooling body or housing cavity, and it is discharged from moisture and/or heat.
Using the ducted body of dimensionally stable the air for flowing through ducted body can also be distributed on multiple gas outlets of ducted body,
And therefore the multiple positions in being distributed in housing on.Therefore, mask for example can be dispersed in the length of mask by multiple
Gas outlet flow into, this can targetedly disperse to flow to the air of mask.
The component of dimensionally stable and the difference of the elastic hose that can be bought are that its intrinsic rigidity is higher.By this compared with
High intrinsic rigidity, ducted body with its air inlet and gas outlet on stable position for the air flowed out in housing simultaneously
And therefore be arranged in headlight on stable direction.Additionally, this higher intrinsic rigidity is also capable of achieving fixed geometry
Shaping, it can be such that ducted body fixes in the housing, and the position of the fixation is accurately and to position cost relatively low.
Further, since this higher intrinsic rigidity, and the feasibility of the shaping due to fixed geometry, can avoid making stream
The crimp of dynamic reduced cross-sectional, the crimp is for example likely to occur when flexible pipe is fixed with hose clamp.Can also avoid
Other improve other resistances of flow resistance, and the flex point of such as elastic hose, the flex point may be in the case of installation be inaccurate
Occur.
Another advantage of this higher intrinsic rigidity is, can be in the inside of housing and in remaining headlight fixture
Between very changefully construct ducted body cross section and trend.
Additionally, the intrinsic rigidity and shape stability can also make the gas outlet of ducted body be designed to nozzle-like.Therefore, air
Region set in advance can targetedly be deflected into（The predetermined region of such as mask）On.
Preferred structural scheme is characterised by that air vent is arranged on the different outer surfaces of headlight from vent.
It is also preferred that the ducted body of dimensionally stable passes through the thermal deformation of plastics with double sheet metal forming methods（TwinSheet
Forming）Make.
It is further preferred that the ducted body has retaining element, the retaining element material engagement ducted body is molded over
On, and be set to by the fixed form of such as screw, clamp, clasp or clip and the housing of headlight and/or headlight
Fixture is connected, to fix ducted body.
It is also preferred that the ducted body of the dimensionally stable is by firm plastics, such as polypropylene is constituted.
It is further preferred that the ducted body of dimensionally stable between its air inlet and gas outlet have it is at least one other
Gas outlet, the gas outlet in ducted body flow air for it is farthest from the air inlet.
Another preferred structural scheme is characterised by that the section for guiding outflow cross section into of the ducted body of dimensionally stable has
There is uniform cross section over its length, also or also there is the cross section narrowed in nozzle-like, or it is in Wen's nozzle-like that it has
The cross section of extension.
It is also preferred that the ducted body of the dimensionally stable is configured to monomer therefore material engagement be linked together
Component.
Alternative and preferably, the ducted body of the dimensionally stable is connect by multiple parts groups and is formed, especially by first component and
Second component group connects and forms.
It is preferred here that, the first component has air inlet and the first gas outlet, and second component has at least one
Second gas outlet.
It is also preferred that the two components are connected with each other by patching connection, this patches connection and especially so constitutes here,
There is unlimited flow cross section i.e. in its open position between first component and second component.
Another preferred structural scheme is characterised by that the ducted body is exported with least one cooling air, and it is so
Arrange so that at least one component to be cooled in the air flow headlight for flowing out in this place.
It is preferred here that, component to be cooled refers to the cooling body of the semiconductor light source of headlight and/or refers to headlight
Control device.
By drawing further advantage in dependent claims, specification and drawings.
It should be understood that it is above-mentioned and further below by the feature of elaboration can not only with each self-explanatory combination applying,
And can also apply with other combinations or individually, without departing from the scope of the present invention.
Description of the drawings
Embodiments of the invention are shown in the drawings, and are described in detail in the following description.Wherein respectively showing
Meaning form is illustrated：
Fig. 1 shows the technical field of the present invention, and its form is the obvious schematic front view of front headlight of motor vehicle；
Fig. 2 shows the profile of the headlight of Fig. 1；
Fig. 3 shows the obvious schematic embodiment of the present invention；
Fig. 4 shows the moulding of the ducted body of dimensionally stable；
Fig. 5 shows another moulding of the ducted body of dimensionally stable；
Fig. 6 shows the perspective view of the headlight cut open, and it has the ducted body of headlight fixture and dimensionally stable
Structure；And
Fig. 7 shows the structure of the ducted body with cooling air outlet, and the cooling air outlet makes big before air flow
Component to be cooled inside lamp.
Specific embodiment
Fig. 1 illustrate in detail known headlight 1 in front view, i.e., from contrary with the main direction of illumination of headlight 1
Direction see.Fig. 2 shows the profile of this headlight.Known headlight 1 has ventilation in the lower part of its housing 3
Hole 2, and there is vent 4 in the upper part of its housing 3.Concept above and below herein means headlight and apply by regulation
Orientation and layout when in a motor vehicle, therefore lower part refers to the part in the close track of the housing of headlight 1.
When headlight 1 is applied by regulation, its orientation in space is represented by stating x-, y- and z- direction.
X- is oriented parallel to the longitudinal axis of motor vehicle, and y- is oriented parallel to transversal line, and z- is oriented parallel to the vertical axis of motor vehicle.This
Any is applied equally to the accompanying drawing that other refer to these directions, therefore these orientation statements realize respectively different sight side
Relation between, the object observed from these direction of visual lines in different accompanying drawings.
The cavity volume of the housing 3 is divided into two sub- volumes 6,7 by flat lid 5.First sub- volume 6 is located at transparent
Mask 8 and flat lid 5 between.Second sub- volume 7 is located between flat lid 5 and the rear wall 9 of housing 3.The flat cover
Son has the outward flange 10 closely abutted on mask 8, therefore only exists between mask 8 and lid 5 narrow
Air gap.Additionally, lid 5 also has interstitial hole, reflector 11 is arranged in this hole or behind this hole.
The function of the flat lid 5 is, hide before the observer for standing on outside headlight to be arranged on second sub
Technical pattern in volume, therefore the outward appearance of headlight directly will not be affected by technology fixture.
Be arranged in reflector 10 it is light source 11, from the light beam of reflector 10s by transparent mask 8 in the past
Export to come in headlight 1.
When hot headlight is cooled down after light is closed, lead to towards on the side inside headlight 1 in mask
The condensation of atmospheric moisture often occurs.In the next operation phase, the condensate should disappear again as early as possible.By making passage of air
One sub- volume 6 is realizing this point.
In order that air flows through the first sub- volume 6, in the vicinity of air vent 2 with air admission hole 13, this divulges information flat lid 5
Hole position is in the lower part of headlight housing 3.Additionally, the flat lid of vent 4 has venthole 14, the vent is located at
In the upper part of headlight housing 3.
Especially in motor-driven vehicle going, pressure reduction, or entering on side are generally produced between air vent 2 and vent 4
Pressure reduction is produced between venthole 14 on pore 13 and opposite side.This whether there is this pressure reduction, the pressure reduction have it is many by force with tool
The aerodynamics condition occurred on the motor vehicle of body is relevant.Sometimes also it is necessary that producing pressure reduction on one's own initiative.This point passes through
Air blast is realizing.The alternative of air blast is that air admission hole 13 and/or venthole 14 are by flexible pipe or conduit pipe pneumatically ground and car
Body position couples, and forcibly produces the negative pressure of superpressure or the high or low appearance of intensity in motion in the vehicle body position.
In the embodiment shown in Fig. 1 and 2, air substantially in the diagonal directions the inside of the first sub- volume 6 along
Mask 8 flows through, and wherein the diagonal extends in FIG from the air admission hole 13 in the lower right corner towards the venthole 14 in the upper left corner.Its knot
Fruit is that compared with the ventilation beside main flow direction, the ventilation carried out along this main flow direction is more effective.As a result
It is that compared with the condensate formed in the lower right corner, in the lower left corner, the condensate of formation is discharged from headlight 2 significantly slowerly
Come.
Fig. 3 shows the element of the embodiment of the headlight 20 by the present invention in schematic diagram and perspective view.Headlight 20
Comprising the housing 22 with light output hole.The light output hole is in figure 3 the surface limited by seamed edge 24,26,28 and 30, and quilt
Transparent mask 8 is covered.The housing 22 has at least one air vent 34 and vent 36.The air vent 34 is preferably provided with
It is lower than vent 36, to produce stack effect.
In order to flow through whole headlight, air vent 34 is preferably also arranged at the headlight outer surfaces different from vent 36
On.If in the two holes 34 and 36 arrange relatively before, in the two holes another arrange relatively after.
It is also preferred that a hole is arranged on more the right in the housing of headlight 20, another hole is arranged on the more left side.
Additionally, headlight 20 also has guide device, it is used for being guided in the inside of housing 22 and arranges from the flow direction of air vent 34
The air-flow of air holes 36.The guide device especially ducted body 38 with dimensionally stable.The ducted body 38 is with air inlet 40 and extremely
A few gas outlet 42, and with the conduit section positioned at the dimensionally stable between air inlet 40 and at least one gas outlet 42
44.The here of ducted body 38 is preferably placed such that in enclosure interior so that its air inlet 40 so reclines in the housing 22
On air vent 34, i.e., the air inlet 40 that the ducted body 38 that the air in housing 22 passes through dimensionally stable is flowed into by air vent is entered
This is hollow in vivo.
In a kind of especially preferred structural scheme, the ducted body 38 is in the housing 22 of headlight 20 with its air inlet 40
Closely abut on the edge of air vent 34, therefore between air vent 34 in the housing 22 and the air inlet 40 of ducted body 38
Will not occur the pressure loss or negative pressure loss due to gas leakage.In other words：Preferably, air inlet 40 and the such structure of air vent 34
Make and arrange, i.e., all air entered inside headlight 20 by air vent 34 all enter dimensionally stable by air inlet 40
In ducted body 38.
By the conduit section 44 of dimensionally stable, the air 46 entered in the ducted body 38 of dimensionally stable by air inlet 40
Flow to the gas outlet of ducted body 38（Such as gas outlet 42）.The gas outlet 42 is for example located on such position, i.e., without air
Or only have very weak air to flow into position, without special air-flow.It is, for example, housing 22 to be internally located at mask attached
Near folding corner region.Due to targetedly flowing into the region by gas outlet 42, the ventilation for carrying out in this place is can obviously improve,
And therefore especially preferably discharge the moisture of condensation.
In the structural scheme shown in Fig. 2, the ducted body 38 of dimensionally stable has three gas outlets 42,48 and 50.This three
Individual gas outlet is preferably placed such that in the lower zone of headlight 20 air-flow 46 discharged by them arrives at mask,
And towards upper deflecting at this, and continue first with brushing to guide upward along mask 8, then the vent 36 towards housing 22 draws
Lead.The air-flow is then discharged by vent 36 from headlight 20.When headlight 20 is flowed through, especially when mask is skimmed over,
Air-flow 46 absorbs the moisture of the internal condensation in housing 22, and is ejected this moisture from headlight 20 by vent 36.
In preferred structural scheme, the ducted body 38 of the dimensionally stable is made by the thermal deformation of plastics.In this as
Manufacture method, especially so-called pair sheet metal forming（Zwei-Platten-Formen）It is preferred.Its advantage is, dimensionally stable
The geometry of ducted body 38 and its retaining element 51 has significantly moulding freedom.
The preferred material of this retaining element 51 engagement be molded on ducted body 38, and by such as screw, clamp, buckle
The fixed forms such as ring, clip are connected with the housing 22 of headlight 20 and/or the fixture of headlight, to fix ducted body 38.
Here, concept " fixture " here refers to each part being arranged on inside the housing 22 of headlight 20.It is especially many for realizing
The technical pattern of individual light function just belongs to this part, as the optical element needed for this, for example light source, reflector, optical conductor,
Transparent Additional optical unit（Using the optical element of total internal reflection）Or lens（Using the optical element of anaclasis）And institute
The support for needing, if necessary also driving structure.
For example for the shadow shield for adjusting optical projection system, in order to adjust illumination distances or in order to realize turning to light function, drive
Dynamic structure is necessary.Additionally, those structures for constituting headlight outward appearance to a certain extent fall within consolidating for modern headlight
Determine part.Such as flat lid 5 in Fig. 1 and 2 is especially also included, flat lid 5 effect be stand on outside observation
Person hides the technical pattern behind the lid.In figure 3 in addition to the ducted body 38 of dimensionally stable, this headlight
All fixtures are all not shown.These fixtures are constantly present certainly in actual headlight, dimensionally stable it is hollow
Body 38 is then another element of headlight fixture.
In layout between other elements for the headlight stock for surrounding ducted body in the assembled state, double sheet metal forming examples
As can also very changefully the trend of the stable ducted body 38 of trained shape and cross section.In preferred structural scheme, use
Material of the fixed plastics such as polypropylene as the ducted body 38 of dimensionally stable.Therefore, it can be ensured that ducted body 38 makes every effort to what is reached
Shape stability, and guarantee that ducted body 38 can be positioned and in headlight 20.
In preferred structural scheme, the ducted body of dimensionally stable has at least between its air inlet 40 and gas outlet 42
One other gas outlet 48 and/or 50, and/or with more than two other gas outlets 48,50, the gas outlet 42 is for stream
It is farthest from the air inlet 40 for the air crossed in ducted body 38.Therefore there was only the feelings of only one gas outlet 42 with ducted body 38
Condition is compared, and the air flowed out from ducted body 38 can be evenly distributed.Therefore compared with only there is a gas outlet, this
Structural scheme can more uniformly flow on the whole mask.According to structural scheme, in terms of the cross section of gas outlet 42,48,50
It is capable of achieving different shapes.In structural scheme, the outflow cross section is circular, or the portion of at least rounding with its edge
Point.
This structural scheme is shown in figures 4 and 5.In another structural scheme, flowing out cross section has corner angle（Especially
It is dimetric）, the wherein cross section especially rectangle or foursquare.Compared with for example foursquare hole, borrow
Rectangular construction is helped, broader and therefore air-flow evenly is capable of achieving.The guiding of the ducted body 38 of dimensionally stable flows out horizontal
The section in section can over its length have uniform cross section, as gas outlet 50.But to this alternatively, they
The cross section that can narrow with nozzle-like, as gas outlet 48.In another structural scheme, the cross section or the cross section
At least one width also can venturi nozzles shape ground extension, as the gas outlet 42 of Fig. 3.
In ducted body 38 has the structural scheme of multiple gas outlets, they can be mutually the same.In another construction
In scheme, cross section is different from each other.Its advantage is, by the MAF of different cross section outflows in its ratio
On can by the geometry of cross section, size and layout in the design empty body 38 when determine.
Fig. 5 shows the structural scheme of the ducted body 38 of dimensionally stable, and it has for the design of specific headlight type
Personalized geometry.In the structural scheme shown in Fig. 4, there is the ducted body 38 of the dimensionally stable air inlet 40, first to go out
Gas port 42A and the second gas outlet 42B.Additionally, the ducted body 38 of the dimensionally stable have fixed geometry 51A, 51B and
51C.The ducted body 38 of the dimensionally stable is the component of monomer in preferred structural scheme, and therefore is that material couples with engaging
Component together.It is alternative and also, it is preferred that scheme in, the ducted body 38 of dimensionally stable is connect by multiple parts groups and is formed.
Fig. 4 shows a kind of structural scheme, and wherein the ducted body 38 of dimensionally stable is by first component 52 and second component 54
Group connects and forms.The first component 52 has the gas outlet 42A of air inlet 40 and first.Second component 54 is in shown structural scheme
With the second gas outlet 42B.The two components 52,54 are connected with each other by patching connection.This patches connection here and so constitutes,
There is unlimited flow cross section i.e. in its interface position between first component 52 and second component 54.
By in first component 52 and second component 54（On side）Between and with the first gas outlet 42A（Another
On side）Between interface position in described unlimited flow cross section size, can preset and flow through these cross sections
The mutual ratio of local air flow.As a result, the air flowed into by air inlet 40 in first component 52 is drawn in first component 52
It is divided into the first local air flow and the second local air flow.
First local air flow is flowed out from the first gas outlet 40.Second local air flow flows into second from first component 52
During part 54 is, and flow out from the second gas outlet 42B.Because it distributes the function of air, the first component 52 is also referred to as air
Distributor.Second component 54 is the guiding section of dimensionally stable, and the local air flow of vent air is directed to by this guiding section
In regional area in the enclosure interior of headlight 20.The regional area for example refer in the inside of headlight housing 22 by transparent screening
Cover the folding corner region of cover restriction.
For the construction of the ducted body 38 of the dimensionally stable shown in Fig. 4, in order to be illustrated it is assumed that the first gas outlet
42A flows to the first lower comer region of the mask inside housing 22, and the second gas outlet 42B flows to the screening inside housing 22
Cover remaining lower comer region of cover.
These folding corner regions are particularly disadvantageous for the collection of condensed moisture.This point is on the one hand because they are closed
More outside is located in motor vehicle, therefore can rapidly be cooled down.In addition they are located at lower section, so this condenses upon the higher of mask
Moisture on position may be moved down due to gravity.In the prior art illustrated with reference to Fig. 1 and 2, in folding corner region
At least one be also located at flowing through cornerwise side of the draft of headlight enclosure interior.The two situations are led on the whole
Cause, the collection of condensed moisture can continually break down in the prior art, and need relatively more times, will pass through
What is carried out in motor-driven vehicle going divulges information to remove the moisture of these condensations again.By means of the invention it is possible to targetedly change
It is apt to the ventilation of these key areas.
Fig. 5 shows the constructive alternative scheme of the ducted body 38 of dimensionally stable, and it has for other headlight type designs
Personalized geometry.The content of Fig. 5 is extra the 3rd gas outlet 42D and the 4th with the difference of the content of Fig. 4
Gas outlet 42C, they are dispersedly arranged on the first gas outlet 42A and the second outlet in the length of the ducted body 38 of dimensionally stable
Between mouth 42B.
Additionally, the two constructions for illustrating in figures 4 and 5 of the ducted body 38 of dimensionally stable geometrically do not have at it
Difference.They are especially applicable in identical headlight housing.Here, the construction shown in Fig. 5 makes vent air more uniformly
Be dispersed in the length of ducted body 38, and therefore spread more evenly across in the size of transparent mask, the mask is by this
Air-flow is flowed into.
Which advantage the two provide in the embodied case by the structural scheme of Figure 4 and 5, have with the occasion of individual cases
Close.It is favourable by the structural scheme of Fig. 4 if condensed water is preferably condensed upon in folding corner region.If the condensed water of cohesion
Occur dispersedly, be then favourable by the structural scheme of Fig. 5.The comparison of Figure 4 and 5 shows the ducted body 38 of dimensionally stable
Many bodies design advantage.Identical air is all applied in the structural scheme by Fig. 4 and in the structural scheme by Fig. 5
Distributor（That is identical component 52）, therefore can be adapted to by the personal settings for only carrying out on second component 54 not the same
The requirement of headlight.
Fig. 6 shows the ducted body 38 of the dimensionally stable shown in Fig. 5 in the specific embodiment of headlight.Fig. 6 especially shows
The higher package thickness gone out in the inside of housing 22 of headlight 20, the package thickness from headlight 20 mould intentionally it is outer
Produce in the structure applied for this in the housing 22 of sight and headlight 20.Additionally, the package thickness is also by many smooth work(
Can and the optical element for needed for this producing, such as light source, reflector, optical conductor, Additional optical unit or lens, or
Support for needed for this, the driving structure that may there is a need to.
For example in order to adjust illumination distances, in order to adjust shadow shield and/or in order to realize turning to light function, driving structure is
It is necessary.Nowadays these structures are typically hidden within behind escutcheon, shadow shield and similar object.Additionally, these escutcheons and screening
Tabula rasa can make the air circulation inside housing 22 become difficult, and therefore condensate is not easy effectively from mask 8
Eject in side.
Fig. 6 is illustrated by section, if in different components（The especially different escutcheons inside housing 22 and screening
Cover frame）Between only exist narrow air gap 56, then the present invention can targetedly realize the inflow of this gap 56, although therefore
The gap 56 is very narrow, but can produce the privileged direction for pointing to mask 8 of vent air in the inside of headlight housing 22.
Fig. 6 also show the shape of the Longitudinal extending of the outlet cross-section of gas outlet 42C, and this is have to becoming a mandarin for gap 56
Profit.This point is particularly suited for shown structural scheme, and wherein the outlet cross-section of gas outlet 42C is in the longitudinal direction with gap 56
Extend parallel side to extend up.So as to flow resistance be minimized, air must pull against the flowing when gap 56 is flowed to
Resistance.
Structural scheme shown in Fig. 7 is characterised by that ducted body 38 has cooling air outlet 58, and its such setting makes
Obtain and flow to component 60 to be cooled inside the headlight 20 of air 46 for flowing out in this place.In structural scheme, the structure to be cooled
Part refers to the cooling body 62 of semiconductor light source 64, and it is fixed on circuit carrier 66 and is supplied and controlled by the circuit carrier
Electric energy, the wherein circuit carrier itself and cooling body thermal coupling, thus the power consumption heat discharged in semiconductor light source by
Cooling body absorbs.
In alternative structural scheme, component to be cooled refers to the control device of headlight 20, by the control device
To control one or more driving means of light source and/or headlight.In modern headlight, this driving means are used for changing
The position of shadow shield, for make optical module towards it is right and towards left swing it is dynamic, for making optical module upwardly and downwardly swing.In order to change light
Distribution, then will change the position of shadow shield, such as change between distance light-light distribution and dipped beam-light distribution.In order to realize turning to
Light function, then it is towards the right side and dynamic towards left swing.In order to adjust illumination distances, then upwardly and downwardly to swing.
Claims (11)
1. a kind of headlight (20) for motor vehicle, it is included：Housing (22) with light output hole, the covering light output
The transparent mask in hole, at least one air vent (34) in the housing and at least one vent (36), the air vent and
Vent can make headlight housing itself divulge information and air draft, wherein, the headlight has guide device, and the guide device draws
Lead and the air-flow (46) of vent is flowed to from air vent in the inside of housing, and it has the ducted body (38) of dimensionally stable, should
Ducted body has air inlet (40) and at least one gas outlet (42), and with positioned between air inlet and gas outlet, shape
Stable conduit section (44),
The headlight has inside it makes air circulation difficulty so that making condensate be not easy effectively from mask (8)
Inner side in the escutcheon that ejects and shadow shield,
Characterized in that, there is gap (56) between escutcheon and shadow shield, wherein, the outlet cross-section mask of the ducted body
Have the shape of Longitudinal extending, the outlet cross-section here extending up with the side of the longitudinal extent parallel of gap (56),
Wherein, the outlet cross-section be arranged on gap (56) towards on the side inside headlight, the dimensionally stable it is hollow
Body is made up of firm plastics and is made with double sheet metal forming methods.
2. headlight (20) according to claim 1, it is characterised in that the ducted body has retaining element (51), should
Retaining element material engagement ground shaping on the hollow-body, and is set to the fixture of the housing with headlight and/or headlight
It is connected, to fix ducted body.
3. headlight (20) according to claim 2, it is characterised in that the ducted body of the dimensionally stable is in its air inlet
(40) there are at least one other gas outlet (48) and gas outlet (42) between, the gas outlet (42) is for the stream in ducted body
It is farthest from the air inlet (40) for dynamic air.
4. headlight (20) according to claim 2, it is characterised in that the ducted body of the dimensionally stable is configured to monomer
And therefore the component that is linked together of material engagement ground.
5. headlight (20) according to any one of Claims 1-4, it is characterised in that the dimensionally stable it is hollow
Body is connect and is formed by multiple parts (52,54) group.
6. headlight (20) according to claim 5, it is characterised in that the ducted body of the dimensionally stable is by first component
(52) connect and form with second component (54) group, wherein, the first component has air inlet (40), and flows into from the air inlet
Air flow out from the first gas outlet (42A) and at least one second gas outlets, wherein, the first component has described first
Gas outlet and second component has described at least one second gas outlets (42B).
7. headlight (20) according to any one of claim 1 to 4, it is characterised in that the ducted body has cooling
Air outlet slit (58), the cooling air outlet is so arranged so that the air (46) for flowing out in this place flows to treating in headlight
The component (60) of cooling.
8. headlight (20) according to claim 7, it is characterised in that the component to be cooled refers to semiconductor light source
(64) cooling body (62).
9. headlight (20) according to claim 7, it is characterised in that the component to be cooled refers to headlight (20)
Control device.
10. headlight (20) according to claim 2, it is characterised in that the retaining element by screw, clamp, buckle
The fixed form of ring or clip is connected with the fixture of the housing of headlight and/or headlight.
11. headlights (20) according to claim 1, it is characterised in that the ducted body of the dimensionally stable is by polypropylene structure
Into.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011089494.2 | 2011-12-21 | ||
| DE102011089494A DE102011089494A1 (en) | 2011-12-21 | 2011-12-21 | Headlight with means for guiding air inside the headlight housing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103175083A CN103175083A (en) | 2013-06-26 |
| CN103175083B true CN103175083B (en) | 2017-05-17 |
Family
ID=47191547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210559257.1A Active CN103175083B (en) | 2011-12-21 | 2012-12-20 | Headlamp with means for air guidance within the headlamp housing |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2607784B1 (en) |
| CN (1) | CN103175083B (en) |
| DE (1) | DE102011089494A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013216869B4 (en) * | 2013-08-23 | 2019-06-19 | Bayerische Motoren Werke Aktiengesellschaft | Cooling device for a headlight of a motor vehicle, in particular for a laser headlight |
| CN104748036B (en) * | 2015-03-20 | 2016-11-16 | 盐城工学院 | Gas heat dissipation type energy-efficient automobile headlight and preparation method thereof |
| DE102015008569B4 (en) * | 2015-07-02 | 2023-05-04 | Audi Ag | Lighting device and vehicle with the lighting device |
| FR3048487B1 (en) * | 2016-03-02 | 2019-05-24 | Valeo Vision | LIGHTING DEVICE FOR A MOTOR VEHICLE COMPRISING COOLING LIGHT MODULES USING A GENERATOR OF AN AIR FLOW |
| DE102016224099A1 (en) | 2016-12-05 | 2018-06-07 | Volkswagen Aktiengesellschaft | Lighting device for a motor vehicle |
| DE102016124763A1 (en) | 2016-12-19 | 2018-06-21 | HELLA GmbH & Co. KGaA | Lighting device for vehicles |
| CN109708074B (en) * | 2017-10-26 | 2021-11-12 | 法雷奥照明湖北技术中心有限公司 | Lamp defogging structure and motor vehicle lighting equipment with same |
| DE102017223700A1 (en) * | 2017-12-22 | 2019-06-27 | Volkswagen Aktiengesellschaft | Ventilation system for a motor vehicle light |
| DE202018102757U1 (en) * | 2018-05-17 | 2019-08-21 | Zumtobel Lighting Gmbh | Aerodynamic component for a flat floodlight |
| FR3086994B1 (en) * | 2018-10-09 | 2021-01-29 | Valeo Vision | MOTOR VEHICLE PROJECTOR |
| DE102019104308A1 (en) * | 2019-02-20 | 2020-08-20 | HELLA GmbH & Co. KGaA | Air duct for cooling a lighting device of a vehicle, cooling device and lighting device |
| FR3100599A1 (en) * | 2019-09-05 | 2021-03-12 | Psa Automobiles Sa | Ventilation device for automotive lighting module |
| CN114383809B (en) * | 2020-10-21 | 2024-02-23 | 苏州旭创科技有限公司 | Optical module high-low temperature environment test device and system |
| FR3122243B1 (en) * | 2021-04-21 | 2023-04-28 | Valeo Vision | HEAT EXCHANGE SYSTEM FOR AN AUTOMOTIVE LIGHTING DEVICE |
| DE102022209828A1 (en) | 2022-09-19 | 2024-03-21 | Siemens Mobility GmbH | Multifunctional accessory device |
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| JP3104158B2 (en) * | 1995-01-19 | 2000-10-30 | 株式会社小糸製作所 | Structure of vehicle cover tube |
| DE10026487B4 (en) | 2000-05-27 | 2012-04-12 | Automotive Lighting Reutlingen Gmbh | Headlight for motor vehicles |
| DE102004025624A1 (en) * | 2004-05-25 | 2005-12-15 | Hella Kgaa Hueck & Co. | Headlamp with heat exchanger for cooling bulbs |
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2011
- 2011-12-21 DE DE102011089494A patent/DE102011089494A1/en not_active Withdrawn
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- 2012-11-06 EP EP12191395.8A patent/EP2607784B1/en active Active
- 2012-12-20 CN CN201210559257.1A patent/CN103175083B/en active Active
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| FR2698055A1 (en) * | 1992-11-18 | 1994-05-20 | Peugeot | Ventilated optical unit for motor vehicle headlamp - uses air inlet in front cover of lamp unit and has ducts to carry air to lamp and into engine compartment |
| CN1210083A (en) * | 1997-09-02 | 1999-03-10 | 株式会社小糸制作所 | Vehicle light |
| CN1295659A (en) * | 1998-03-31 | 2001-05-16 | 安特耶·韦伯 | Headlight or light |
| FR2779804A1 (en) * | 1998-06-11 | 1999-12-17 | Valeo Vision | Cooling arrangement for vehicle light cluster |
| DE19838950A1 (en) * | 1998-08-27 | 2000-03-02 | Bosch Gmbh Robert | Lighting device for vehicles has ventilation device(s) with tubular piece connected to one of ventilation openings, flowed through by relative wind, with excess pressure valve |
| DE10135849A1 (en) * | 2001-07-23 | 2003-02-06 | Bayerische Motoren Werke Ag | Motor vehicle headlamp has air flow fed to one edge of covering glass panel by air feed arrangement and air feed opening that exits via air outlet opening at edge opposite air feed opening |
| DE102008001066A1 (en) * | 2007-04-25 | 2008-11-06 | Zizala Lichtsysteme Gmbh | Cooling device for cooling LED light source of vehicle headlamp, has cooling body with hollow space that is provided with air outlet opening, where air outlet opening is connected with upper housing outer area by pipe |
| FR2946730A1 (en) * | 2009-06-16 | 2010-12-17 | Valeo Vision | Lighting or signaling device i.e. headlight, for motor vehicle, has pipe provided in aeraulic communication with generating apparatus to transfer flow of air toward heat exchanging surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103175083A (en) | 2013-06-26 |
| EP2607784A1 (en) | 2013-06-26 |
| EP2607784B1 (en) | 2019-04-03 |
| DE102011089494A1 (en) | 2013-06-27 |
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