CN110296374A - Optimize the cooling lighting module equipped with micromirror matrix - Google Patents
Optimize the cooling lighting module equipped with micromirror matrix Download PDFInfo
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- CN110296374A CN110296374A CN201910225394.3A CN201910225394A CN110296374A CN 110296374 A CN110296374 A CN 110296374A CN 201910225394 A CN201910225394 A CN 201910225394A CN 110296374 A CN110296374 A CN 110296374A
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- area
- lighting module
- region
- radiator
- air
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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]
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
-
- 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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
- F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
-
- 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
- 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
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
-
- 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]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
-
- 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
- F21W2102/20—Illuminance distribution within the emitted light
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Projection Apparatus (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Lighting module (3) of the one kind for the headlamp (2) of motor vehicles (1), the lighting module includes :-first area (Z1), which includes at least one light source (22 ') and micromirror matrix (24)；Second area (Z2), which includes the first radiator (26), for the heat generated by the light source (22 ') that dissipates；Third region (Z3), which includes the second radiator (27), for the heat generated by the micromirror matrix (24) that dissipates；At least one air flow-producing device (31 ', 32 '), for in first area (Z1), second area (Z2) and third region (Z3) middle generation air-flow, first area (Z1), second area (Z2) and third region (Z3) are different from each other, first area (Z1) is vertically disposed between second area (Z2) and third region (Z3), and first area (Z1) includes gas outlet (30).
Description
Technical field
The present invention relates to a kind of lighting module of headlamp for motor vehicles, which includes micromirror matrix.
The invention further relates to a kind of headlamps for motor vehicles including this lighting module.It include this invention further relates to one kind
The motor vehicles of kind headlamp or this lighting module.
Background technique
Illumination for motor vehicles, it is known to use the lighting module including light source and micromirror matrix.Micromirror matrix is one
The electromechanical micro-system of kind, the electromechanics micro-system include multiple micro mirrors, these micro mirrors all surround the same axis movement and can be in
Existing at least two different orientations.According to its first orientation, light is spread out of lighting module in illuminated field by micro mirror.According to its
Two orientations, light deviates illuminated field and the structure of illuminated module absorbs.The orientation of each micro mirror can pass through electrostatic force
Effect is controlled individually.Lighting module includes the control circuit for being connected to electronic control unit.Electronic control unit is to each
Micro mirror emission control electric current is to limit their orientation.
This headlamp allows to constitute and project in the front of vehicle complicated image.Therefore, headlamp is for producing
Raw different function, such as the projection of the information useful to the safety of the pedestrian located immediately at vehicle periphery, or again for example
Avoid the road lighting function that other drivers are dizzy.
In their operations, this lighting module may be heated considerably.Excessively heating will lead to micromirror matrix or its
The failure of control circuit is even destroyed.In order to cool down micromirror matrix, it is known to use radiator associated with fan.However, this
A little cooling devices are insufficient to allow lighting module to be maintained at destructive temperature or less.
Summary of the invention
The object of the present invention is to provide a kind of lighting modules, compensate for disadvantages mentioned above and improve in the prior art
The lighting module known.Particularly, the invention enables can manufacture one kind to be compact, easy to realization and limiting light source, micromirror matrix
And its lighting module of the heating of corresponding control circuit.
The present invention relates to a kind of lighting module of headlamp for motor vehicles, which includes:
First area, the first area include at least one light source and micromirror matrix；
Second area, the second area include the first radiator, first radiator can dissipate by it is described at least one
The heat that light source generates；
Third region, the third region include the second radiator, which can dissipate is generated by micromirror matrix
Heat；
At least one air flow-producing device, the air flow-producing device are used in first area, second area and third region
Middle generation air-flow,
First area, second area and third region be it is different from each other, first area is vertically disposed at second area
Between third region, first area includes gas outlet.
The gas outlet of first area can be upwardly oriented via the top surface of lighting module.As modification, which can be with
It is orientated downwards or to side or to the rear portion of lighting module.
Gas outlet may include at least one ventilation opening across second area, especially wear in the two sides of the first radiator
Cross two ventilation openings of second area.
At least one described ventilation opening can be vertically oriented and can tilt towards the rear portion of lighting module.
Second area can be arranged in the top of first area.Third region can be arranged in the lower section of first area.
First area can at least partly be radiated by the first circuit board and/or first that support at least one light source
The base portion of device demarcates with second area.First area can at least partly by the second circuit board of support micromirror matrix and/
Or second radiator base portion come and third region demarcate.
Lighting module may include projection optical device, and projection optical device can guide by micromirror matrix, first area
And/or the light of second area reflection, which includes the gas outlet above projection optical device.
Second area and/or third region may include the gas outlet towards front.
First area and/or second area and/or third region may include the air inlet from rear portion.
Air flow-producing device may include at least one fan, especially at least two fans.
Lighting module may include that can only generate the first fan of air-flow in first area and third region and be only capable of
Enough the second fans for generating air-flow in the second area.
Described two fans can be parallelly arranged up and down.
At least one described light source may include at least one light emitting diode.
The invention further relates to a kind of headlamp, which includes lighting module as previously defined.
The invention further relates to a kind of motor vehicles, which includes lighting module or limiting as previously defined as preceding
Fixed headlamp.
Detailed description of the invention
The specific reality that object of the present invention, feature and advantage will be provided in conjunction with attached drawing in a non-limiting manner below
It applies in the description of example and is described in detail, in the accompanying drawings:
Fig. 1 is the schematic diagram of the motor vehicles of embodiment according to the present invention；
Fig. 2 is the top isometric view of the lighting module of embodiment according to the present invention；
Fig. 3 is the front isometric view of the lighting module of embodiment according to the present invention；
Fig. 4 is the schematic cross-section of the profile of the lighting module of embodiment according to the present invention；
Fig. 5 is the sectional isometric view of the lighting module of embodiment according to the present invention；
Fig. 6 is the rear portion isometric view of the lighting module of embodiment according to the present invention；
Fig. 7 is the isometric view that the lighting module of shell is protected without it of embodiment according to the present invention；
Fig. 8 is the top isometric view of the first radiator of embodiment according to the present invention；
Fig. 9 is the lower part isometric view of the second radiator of embodiment according to the present invention.
Specific embodiment
In entire attached drawing and description, left and right is limited according to the viewpoint of vehicle driver.Axis X indicates vehicle
Longitudinal axis.It advances forward and on straight line, vehicle advances from back to front on the direction for be parallel to its longitudinal axis.Axis
Line X is posteriorly orientated from the front of vehicle, that is to say, that is being driven in the wrong direction on direction.The transverse axis of axis Y expression vehicle.Axis Y
It is orientated from left to right.Axis Z is indicated and axis X and axis Y axis at right angle.When vehicle is stood on level ground, axis
Line Z is vertical axis.Axis Z is orientated from bottom to top.Axis X, Y and Z-shaped at direct orthogonalization referential.In entire attached drawing and
In description, it is believed that vehicle is stood on level ground.Moreover, for the purpose for simplifying description, even if considering outside vehicle
When, lighting module will be also used for by reference to the same reference system that vehicle limits, because it is intended to install according to specific orientation
On vehicle.
Fig. 1 shows the motor vehicles 1 for being provided with the headlamp 2 of embodiment according to the present invention.The vehicle, which can be, appoints
What type, such as it can be private vehicle, multi-purpose vehicle or truck.Headlamp 2 is arranged in the front of vehicle, but same
Sample may be mounted at the rear portion of vehicle.Headlamp allows to illuminate road, sees and/or project ground by other drivers
On image, to provide information to driver or his or her environment.Headlamp 2 includes the illumination mould of embodiment according to the present invention
Block 3.
Fig. 2 and Fig. 3 show lighting modules 3.Lighting module 3 includes shell 10, which forms whole parallel six face
The protective case of body form.Lighting module 3 further includes various electric connectors 4, which allows to for lighting module being electrically connected
The electronic control unit being connected in insertion vehicle.It can have these any number of connectors, and these connectors can
With any form.
Lighting module 3 includes the projection optical device 21 being orientated towards front, and light can pass through the projection optical device
21 transmittings.Shell 10 includes the first front aperture 11, which is located at 21 top of projection optical device, is intended for gas
The outlet of stream is arranged essentially parallel to longitudinal axis orientation.First front aperture has Integral rectangular form, and the long side of rectangle is parallel
In transverse axis.Shell 10 further includes the second front aperture 12, which is located at the lower section, same of projection optical device 21
Sample is intended for the outlet of air-flow, is substantially longitudinally orientated.Second front aperture 12 is visible especially in Fig. 3: it is actually
The window laterally positioned including five.Finally, shell further includes two top-portion apertures 13 on the top of shell 10, it should
Top-portion apertures 13 are equally directed to the outlet for air-flow.The form in these different holes can be different, according to what be will be described below
Operation, if they allow air shell 10 it is inside and outside between pass through.
With reference to Fig. 4 and Fig. 5, lighting module 3 includes three regions Z1, Z2, Z3 different from each other.These three regions correspond to
The complementary volume of lighting module.On the one hand first area Z1 includes the light emitting diode 22 for being connected to first circuit board 23, another
Aspect includes the micromirror matrix 24 for being connected to second circuit board 25.Two circuit boards 23,25 may include driver or the ministry of electronics industry
Part allows to control the connection of light emitting diode 22 and the activation of micromirror matrix 24 respectively.First area Z1 further includes projection
Optical device 21.Therefore, first area is the generating unit that light and light are spread outward from headlamp.Second area Z2 includes can
First radiator 26 of the heat generated by light emitting diode that dissipates.Third region Z3 includes that can dissipate to be generated by micromirror matrix 12
Heat the second radiator 27.Referring to vertical axis, second area Z2 is arranged in the top of first area Z1, and third region
Z3 is arranged in the lower section of first area Z1.Therefore, first area is arranged in second area Z2 and third region in the vertical direction
Between Z3.
First area Z1 includes gas outlet 30, which is upwardly oriented via the top surface of lighting module and and shell
Top-portion apertures 13 be overlapped.Second area Z2 includes gas outlet 34, the front of gas outlet 34 towards the lighting module be orientated and with
First front aperture 11 of shell is overlapped.Third region Z3 includes gas outlet 35, and the front of gas outlet 35 towards the lighting module takes
It is overlapped to and with the second front aperture 12 of shell.As described above, these regions are different, and their respective air go out
Mouth is different.
First area Z1 demarcates along first circuit board 23 in the first plane and second area Z2 wherein extended.This first
Plane with respect to the horizontal plane tilts forward and upwards, as shown in Figure 4 and Figure 5.First area Z1 is along second circuit board 25 at it
The second plane and third region Z3 of middle extension are demarcated.Second plane is substantially horizontal.Therefore, first area Z1 includes
The cross section of whole tapered in form.Trapezoidal handle portion is located at the rear side of lighting module and trapezoidal outsole portion is located at front side.
Light emitting diode 22 is light source 22 '.As modification, light emitting diode can be by the light source generation of any other form
It replaces, such as incandescent lamp.Lighting module may include any number of light emitting diode or the light source of any other form.
Lighting module 3 includes collimation lens 28 and optical prism 29, is both located in the Z1 of first area.Collimation lens 28
And optical prism 29 is folded between light emitting diode 22 and micromirror matrix 24, to form light beam and by the light beam towards micro mirror
Matrix 24 guides.If projection optical device 21 is located at the downstream of micromirror matrix 24 and including concatenated dry lens.
Micromirror matrix 24 is electromechanical micro-system comprising multiple flat micromirrors, these flat micromirrors can independently enclose
It is mobile around the same axis.Two different orientations can be presented in micro mirror.The orientation of each micro mirror can pass through the work of electrostatic force
With being controlled individually.Micromirror matrix has rectangular in form, and on its width may include hundreds of micro mirrors and at it
It may include hundreds of micro mirrors in length.According to the first orientation for being known as activity orientation, micro mirror will be generated from light emitting diode
Light is reflected towards projection optical device 21.According to the second orientation of referred to as inactive orientation, micro mirror will not be from light emitting diode
The light of generation is reflected towards projection optical device.Micromirror matrix receives order, which micro mirror which limits takes according to first
Always orientation and which micro mirror are orientated according to second orientation.Therefore, each micro mirror limits the pixel of image: therefore micro mirror square
Battle array can be not only used for obtaining standardized illumination, and can be used for projecting complicated image.Micromirror matrix is incorporated in larger
In the chip of size.The chip is incorporated in second circuit board 25.In order to guarantee correct operation, the temperature of chip and micromirror matrix
Threshold temperature is not to be exceeded.
First radiator 26 and the second radiator 27 are for the device by heat conducting and radiating.Each radiator is preferably
It is made in the form of only single component of thermally conductive material (such as aluminium or copper).Radiator preferably includes air as big as possible
Exchange surface.
First radiator 26 is especially visible in figures 7 and 8.First radiator includes being pressed on first circuit board 23
Base portion 26A.Base portion 26A has Integral rectangular form and its surface is greater than the surface of first circuit board 23.In addition to the first circuit
Except plate, first area Z1 and second area Z2 can also be physically separate from by base portion 26A.First radiator 26 further includes one group
The whole column 26B extended straight up.Column 26B forms the grid of rectangular outer form, and the first side is parallel to longitudinal axis X and prolongs
It stretches, the second side is parallel to transverse axis Y extension.This group of column 26B is wrapped by the two flank 26C or so longitudinally and vertically extended
It encloses.
Especially as can be seen in fig. 9 the second radiator 27 contacted with second circuit board 25.Second radiator includes parallel
In the base portion 27A that second circuit board 25 extends.Second radiator further includes whole parallelepiped form and from the top of base portion 27A
The main body 27D extended upwardly.The main body is pressed on the chip comprising micromirror matrix 24, to be generated by micromirror matrix 24
Be thermally conducted in all second radiators 27.Second radiator 27 further includes one group of column 27B, and column 27B is overall from base portion 27A
Vertically extend downwardly.Column 27B forms the grid of rectangular outer form, and the first side is parallel to longitudinal axis X extension, the second side
It is parallel to transverse axis Y extension.This group of column 27B is surrounded by the two flank 27C or so longitudinally and vertically extended.
It can have any number of column 26B, 27B.As modification, column can be replaced by fin, which is parallel to purport
In the air-flow for passing through radiator, that is it is parallel to longitudinal axis X orientation.
Two ventilation openings 30A, 30B are arranged in the two sides of the first radiator 26.The two ventilation openings allow to first
The connection of the outside of region Z1 and lighting module.Therefore, two ventilation openings constitute the gas outlet 30 of first area Z1.Two ventilation openings
Second area Z2 is passed through in the two sides of the first radiator 26.Two ventilation openings vertically extend and generally toward lighting modules
Rear portion inclination.In other words, the axis of ventilation opening 30A, 30B and vertical axis form non-zero angle.Two ventilation openings are on the one hand
At the high point for being formed in first area in the Z1 of first area, that is to say, that forming the trapezoidal of the cross section of first area Z1
At big bottom side, the level of separating plane between first area and second area.On the other hand, two ventilation opening 30A,
Two top-portion apertures 13 formation of the 30B towards shell 10.Ventilation opening has elliptic cross-section, but as modification, can have any
The section of other forms.As modification, the quantity of these ventilation openings be can also be different.Lighting module can only include single ventilation
Mouth or more than two ventilation opening.Advantageously, two ventilation openings and the first radiator form the same component.
Referring to Fig. 6, lighting module 3 further includes two fans 31,32, the two fans are arranged in the rear portion of lighting module simultaneously
And air-flow can be generated in the region each of three regions Z1, Z2 and Z3.More specifically, the first fan 31 is arranged to only
Air-flow is generated in first area Z1 and third region Z3, and the second fan 32 is arranged to only generate gas in second area Z2
Stream.Therefore, first radiator 26 associated with light emitting diode 22 benefits from dedicated fan, and dedicated fan permission especially has
The cooling light emitting diode in effect ground.Two fans 31,32 are vertically arranged up and down.Advantageously, two fans can be it is identical or
Person at least has essentially identical external form.They include at least one rotating vane 31A, 32A and being capable of driving blades
The motor of rotation.Lighting module includes the air inlet 33 positioned at the rear portion of each fan, can will be new by the air inlet 33
Fresh air is drawn into lighting module.As modification, each fan can be by any other 31 ', 32 ' generation of air flow-producing device
It replaces.In particular, two fans can be replaced by a stronger fan.
When the fan is operating, the air-flow in each region Z1, Z2 and Z3 is substantially longitudinally orientated from back to front.Across three
The air-flow of a region Z1, Z2, Z3 are independent.Air-flow does not mix.However, three regions Z1, Z2, Z3 be not necessarily required to relative to
It is completely closed each other, but can have air leakage between zones, as long as these leakages and the air-flow for passing through each region
It is minimum compared to holding.
Air-flow in the Z1 of first area is indicated in Fig. 4 and Fig. 7 by the first arrow F1.Air-flow in the Z1 of first area is by
One fan generates, and guides between first circuit board and second circuit board.Air-flow passes through the cooling light emitting diode 22 of convection current
With micromirror matrix 24, then it is discharged upwards by two ventilation openings 30A, 30B that two top-portion apertures 13 with shell are connect.Note
Meaning, because two ventilation openings extend from the top of first area Z1, even if comparing cold air when the first fan is inoperative
Light hot-air will tend to leak through two ventilation openings and be discharged from first area.The hot-air lighter than cold air will tend to leak through two
Ventilation opening leaves naturally, with slot milling, so that colder air be made to enter by the air inlet 33 at the rear portion of lighting module.
Therefore, the structure of first area Z1 is conducive to the smallest natural cooling of first area Z1.The phenomenon is added to the first fan 31
Contribution so that cooling best.
The air-flow in second area Z2 indicated in Fig. 4 and Fig. 7 by the second arrow F2 passes through the first radiator and leads to
The first front aperture 11 for crossing shell 10 is issued from headlamp.The first radiator is passed through by the fresh air that the first fan sucks,
It is slided around column 26B.Air-flow in second area laterally draws between two flank 26C, base portion 26A and the top side of shell 10
It leads.Heat exchange is carried out between fresh air and hotter radiator.The heat exchange facilitate reduce the first radiator 26 and
Therefore the temperature of first circuit board 23 and light emitting diode 22.
In Fig. 4 and Fig. 7 by third arrow F3 indicate third region Z3 in air-flow pass through the second radiator 27 and
It is issued by the second front aperture 12 of shell 10 from headlamp.The first part of air-flow in the Z3 of third region is in second circuit board
25 and second radiator 27 base portion 27A between recycle.The second part of air-flow in the Z3 of third region passes through the second radiator
27, it is slided around its column 27B.The second part guides between flank 27C, base portion 27A and the bottom side of shell 10.In fresh sky
Heat exchange is carried out between gas and hotter radiator.The heat exchange helps to reduce the second radiator 27 and therefore second circuit
The temperature of plate 25 and micromirror matrix 24.The second front opening 12 that air-flow passes through shell is issued from third region Z3.
When light emitting diode emits light, then light first passes through collimation lens 28 before reaching micromirror matrix 24
Across optical prism 29.If the micro mirror of light arrival activity orientation, is reflected towards optical prism 29, light is from optics
Prism 29 starts to deflect towards projection optical device 21.Light then passes through the different lens to form projection optical device, and
And it therefore issues forward from headlamp to illuminate the environment of road or vehicle.Such path is indicated by the dotted line R1 in Fig. 4.Such as
Fruit light reaches the micro mirror of inactive orientation, then it deviates projection optical device 21 and is not involved in the photograph of road or vehicle environmental
It is bright.If spurious rays leave lighting module by a ventilation opening in ventilation opening 30A, 30B, such as along the line in Fig. 4
Path shown in R2, then its illumination for being also not involved in road or vehicle environmental, because ventilation opening tilts backwards.Therefore, ventilation opening
Tilt backwards to avoid and may pass through the light that ventilation opening 30A, 30B are projected in a manner of spuious from lighting module.
Certainly, the present invention is not limited to described embodiments.Particularly as modification, the gas outlet 30 of first area Z1
(its form that can be one or more ventilation opening 30A, 30B) can not be upwards but right side and/or left side or to
Under formed even towards the rear portion of lighting module 3.Advantageously, in all cases, gas outlet is advantageously generally toward rear portion
Inclination makes spurious rays visible in vehicle front to avoid by passing through gas outlet.
By means of the present invention, a kind of lighting module is obtained, wherein making air-flow not only about radiator and around light source
22 ' recycle with micromirror matrix.Air-flow be it is independent, this allows to obtain particularly effective cooling.With known lamp module phase
Than the temperature of light source, which can reduce about 10 DEG C and the temperature of micromirror matrix, can reduce about 5 DEG C, to improve these components
Life and reliability.
Claims (16)
1. lighting module (3) of the one kind for the headlamp (2) of motor vehicles (1), which is characterized in that the lighting module packet
It includes:
First area (Z1), the first area include at least one light source (22 ') and micromirror matrix (24)；
Second area (Z2), the second area include the first radiator (26), and first radiator can dissipate by described
The heat that at least one light source (22 ') generates；
Third region (Z3), the third region include the second radiator (27), and second radiator can dissipate by described
The heat that micromirror matrix (24) generates；
At least one air flow-producing device (31 ', 32 '), the air flow-producing device are used in the first area (Z1), institute
It states and generates air-flow in second area (Z2) and the third region (Z3),
The first area (Z1), the second area (Z2) and the third region (Z3) be it is different from each other, described first
Region (Z1) is vertically disposed between the second area (Z2) and the third region (Z3), first area (Z1) packet
Include port (30).
2. lighting module (3) according to claim 1, which is characterized in that the gas outlet of the first area (Z1)
(30) it is upwardly oriented via the top surface of the lighting module.
3. lighting module (3) according to any one of the preceding claims, which is characterized in that the gas outlet (30) includes
Across at least one ventilation opening (30A, 30B) of the second area (Z2), especially two in first radiator (26)
Side passes through two ventilation openings (30A, 30B) of the second area (Z2).
4. lighting module (3) according to claim 3, which is characterized in that at least one described ventilation opening (30A, 30B) is perpendicular
It directly is orientated and is tilted towards the rear portion of the lighting module (3).
5. lighting module (3) according to any one of claim 1 to 3, which is characterized in that the first area (Z1)
The gas outlet (30) tilts towards the rear portion of the lighting module (3).
6. lighting module (3) according to any one of the preceding claims, which is characterized in that second area (Z2) cloth
It sets in the top of the first area (Z1), and the third region (Z3) is arranged in the lower section of the first area (Z1).
7. lighting module (3) according to any one of the preceding claims, which is characterized in that the first area (Z1) is extremely
Partially by supporting the first circuit board (23) of at least one light source (22 ') and/or by first radiator (26)
Base portion (26a) come with the second area (Z2) demarcate, and/or
It is characterized in that, the first area (Z1) is at least partly by the second circuit board of the support micromirror matrix (24)
(25) and/or the base portion (27a) of second radiator (27) demarcates with the third region (Z3).
8. lighting module (3) according to any one of the preceding claims, which is characterized in that the lighting module includes throwing
Shadow optical device (21), the projection optical device can guide by the micromirror matrix (24), the first area (Z1) and/
Or the light of second area (Z2) reflection, the second area (Z2) includes the outlet above the projection optical device
Mouthful.
9. lighting module (3) according to any one of the preceding claims, which is characterized in that the second area (Z2)
And/or the third region (Z3) includes the gas outlet (34,35) towards front.
10. lighting module (3) according to any one of the preceding claims, which is characterized in that the first area (Z1)
And/or the second area (Z2) and/or the third region (Z3) include the air inlet (33) from rear portion.
11. lighting module (3) according to any one of the preceding claims, which is characterized in that the air flow-producing device
(31 ', 32 ') include at least one fan (31,32), especially at least two fans (31,32).
12. lighting module (3) according to claim 11, which is characterized in that the lighting module includes only can be in institute
State the first fan (31) that air-flow is generated in first area (Z1) and the third region (Z3) and only can be in secondth area
The second fan (32) of air-flow is generated in domain (Z2).
13. lighting module (3) according to claim 12, which is characterized in that described two fans (31,32) are parallel up and down
Ground arrangement.
14. lighting module (3) according to claim 13, which is characterized in that at least one described light source (22 ') includes extremely
A few light emitting diode (22).
15. a kind of headlamp (2), including lighting module according to any one of the preceding claims (3).
16. a kind of motor vehicles (1), which is characterized in that the motor vehicles include according to claim 1 to any one of 14 institutes
The lighting module (3) or headlamp according to claim 15 (2) stated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1852522 | 2018-03-23 | ||
| FR1852522A FR3079283B1 (en) | 2018-03-23 | 2018-03-23 | LIGHTING MODULE EQUIPPED WITH A MATRIX OF MICRO-MIRRORS WITH OPTIMIZED COOLING |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110296374A true CN110296374A (en) | 2019-10-01 |
| CN110296374B CN110296374B (en) | 2022-10-28 |
Family
ID=62143400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910225394.3A Active CN110296374B (en) | 2018-03-23 | 2019-03-22 | Illumination module equipped with a micromirror matrix with optimized cooling |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3543597B1 (en) |
| CN (1) | CN110296374B (en) |
| FR (1) | FR3079283B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692573B (en) * | 2019-09-30 | 2022-02-25 | 长城汽车股份有限公司 | Lighting device and vehicle |
| CN111561685B (en) * | 2019-09-30 | 2022-08-19 | 长城汽车股份有限公司 | Lighting apparatus and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478190A (en) * | 2010-11-19 | 2012-05-30 | 现代自动车株式会社 | Intelligent head lamp assembly for vehicle |
| US20160290589A1 (en) * | 2015-03-30 | 2016-10-06 | Valeo Vision | Light module for motor vehicle headlight |
| US20170160542A1 (en) * | 2015-12-08 | 2017-06-08 | Toyota Jidosha Kabushiki Kaisha | Vehicle headlamp |
| CN106813184A (en) * | 2015-11-27 | 2017-06-09 | 法雷奥照明公司 | Motor vehicle headlamp lighting module and the headlamp of association |
| WO2017132713A1 (en) * | 2016-02-02 | 2017-08-10 | Zkw Group Gmbh | Lighting unit for a motor vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3358245B1 (en) * | 2015-09-29 | 2023-03-01 | Panasonic Intellectual Property Management Co., Ltd. | Light source device and projection device |
-
2018
- 2018-03-23 FR FR1852522A patent/FR3079283B1/en active Active
-
2019
- 2019-03-22 CN CN201910225394.3A patent/CN110296374B/en active Active
- 2019-03-22 EP EP19164754.4A patent/EP3543597B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478190A (en) * | 2010-11-19 | 2012-05-30 | 现代自动车株式会社 | Intelligent head lamp assembly for vehicle |
| US20160290589A1 (en) * | 2015-03-30 | 2016-10-06 | Valeo Vision | Light module for motor vehicle headlight |
| CN106813184A (en) * | 2015-11-27 | 2017-06-09 | 法雷奥照明公司 | Motor vehicle headlamp lighting module and the headlamp of association |
| US20170160542A1 (en) * | 2015-12-08 | 2017-06-08 | Toyota Jidosha Kabushiki Kaisha | Vehicle headlamp |
| WO2017132713A1 (en) * | 2016-02-02 | 2017-08-10 | Zkw Group Gmbh | Lighting unit for a motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110296374B (en) | 2022-10-28 |
| FR3079283A1 (en) | 2019-09-27 |
| EP3543597A1 (en) | 2019-09-25 |
| FR3079283B1 (en) | 2020-10-02 |
| EP3543597B1 (en) | 2022-05-25 |
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