US20020121357A1 - Optical unit for a motor vehicle - Google Patents
Optical unit for a motor vehicle Download PDFInfo
- Publication number
- US20020121357A1 US20020121357A1 US10/084,353 US8435302A US2002121357A1 US 20020121357 A1 US20020121357 A1 US 20020121357A1 US 8435302 A US8435302 A US 8435302A US 2002121357 A1 US2002121357 A1 US 2002121357A1
- Authority
- US
- United States
- Prior art keywords
- front unit
- fan
- motor vehicle
- casing
- unit according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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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
- F21S45/40—Cooling of lighting devices
- F21S45/42—Forced cooling
- F21S45/43—Forced cooling using gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/06—Arrangements for cooling other engine or machine parts
-
- 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
-
- 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
- F21S45/60—Heating of lighting devices, e.g. for demisting
-
- 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
Definitions
- the present invention relates to a front unit for a motor vehicle, of the type comprising:
- At least one optical unit which comprises a casing provided with inlet and outlet openings for a flow of air sweeping the inside of the casing
- the time necessary to remove the condensates may be too long, so that the condensates present on the glass of the casing impair the operation of the optical unit and its aesthetic quality.
- document FR-2 779 804 has proposed the arrangement of a fan in the casing of each optical unit.
- a fan creates a forced flow of air between the inlet opening and the outlet opening each optical unit.
- Such a fan creates a forced flow of air between the inlet opening and the outlet opening of the casing, thus enabling the time taken to remove the condensates to be reduced.
- An object of the invention is therefore to improve in a simple and economical manner the removal of condensates in the optical unit or units of a front unit of the above-mentioned type.
- the invention relates to a front unit of the above-mentioned type, characterized in that the front unit comprises a duct, a first end of which is connected to an opening in the casing of the optical unit and a second end of which is arranged in the vicinity of the fan so that the fan produces the flow of air for sweeping the inside of the casing.
- the front unit may comprise one or more of the following features, taken in isolation or according to any technically possible combination:
- a Venturi device which is arranged in the vicinity of the fan and which comprises a divergent main passage and an auxiliary passage connecting the main passage and the second end of the duct;
- the shroud forms the main passage of the Venturi device
- the main passage diverges in the direction of circulation of the airstream in order to bring about the suction, by way of the second end of the duct, of the flow of air for sweeping the inside of the casing;
- the fan is to be located behind the heat exchanger when the front unit is mounted on the motor vehicle;
- the fan is to be located in front of the heat exchanger when the front unit is mounted on the motor vehicle.
- the invention relates also to a motor vehicle, characterized in that it comprises a front unit as defined above.
- FIG. 1 is a diagrammatic side view of a front unit of a motor vehicle according to a first embodiment of the invention
- FIG. 2 is an enlarged and sectional diagrammatic view of an optical unit of the front unit of FIG. 1, taken on the line II-II,
- FIGS. 3 and 4 are sectional and diagrammatic upper half-views of the heat exchanger and the fan of the front unit of FIG. 1, illustrating, respectively, the case where the fan is in operation and the vehicle is at a standstill and the case where the fan is not in operation and the vehicle is moving,
- FIGS. 5 and 6 are views analogous to FIGS. 3 and 4, illustrating a variant of the embodiment of FIGS. 1 to 4 ,
- FIGS. 7 and 8 are views analogous to FIGS. 3 and 4, illustrating a second embodiment of the invention.
- FIGS. 9 and 10 are views analogous to FIGS. 3 and 4, illustrating a variant of the second embodiment of the invention.
- orientations used are the normal orientations of a motor vehicle.
- FIG. 1 illustrates a front unit 1 of a motor vehicle which comprises, in particular, two lateral optical units 2 arranged one on each side of the motor vehicle, a radiator 3 for cooling the heat engine of the motor vehicle, and a fan 4 comprising an impeller and an electrical motor 6 for driving the impeller in rotation.
- the optical unit 2 is a conventional optical unit comprising a casing 7 formed by an opaque rearward back portion 8 and a transparent front glass 9 closing the back portion 8 .
- the optical unit 2 comprises, inside the casing 7 , a projector 10 comprising at least one lamp (not shown) and a reflector 11 .
- the back portion 8 of the casing 7 may be formed in one piece with a front face supporting the optical unit 2 , the radiator 3 and the fan 4 . It may also be, in a conventional manner, an element which is separate from the front face.
- the back portion 8 of the casing 7 is provided with a first opening 12 formed in its lower wall and a second opening 13 (FIG. 2) formed in its rear wall.
- the openings 12 and 13 are spaced laterally from one another, the opening 12 being arranged laterally towards the inside of the vehicle and the opening 13 being arranged laterally towards the outside of the vehicle, as illustrated by FIG. 2.
- the opening 13 has baffles.
- the fan 4 is arranged behind the radiator 3 to produce, by suction, a stream of air passing through the radiator 3 .
- the front unit 1 comprises a shroud 14 , sometimes called a duct, which extends between the radiator 3 and the impeller 5 of the fan 4 in order to channel the airstream created by the fan 4 .
- the shroud 14 is produced, for example, by moulding a plastics material.
- the front unit 1 also comprises a duct 15 , for example in the form of a flexible tube.
- a first end 16 of the duct 15 is connected to the first opening 12 of the casing 7 of the optical unit 2 , for example by way of a feed-through sleeve 17 receiving a bundle 18 of electrical conductors connecting the lamps of the optical unit 2 to an electrical power supply which is not shown.
- the second end 19 of the duct 15 leads into the shroud 14 between the radiator 3 and the impeller 5 , and therefore to the vicinity of the fan 4 .
- connection of the end 19 of the duct 15 to the shroud 14 can be effected by way of an air inlet 20 which projects outwards from the shroud 14 and onto which the second end 19 is fitted.
- a partial vacuum is thus created in the space 22 delimited on the inside by the shroud 14 between the radiator 3 and the impeller 5 . Since the space 22 is connected by the duct 15 to the casing 7 of the optical unit 2 , a forced flow of air towards the space 22 is created in the casing 7 . That flow of air streams from the opening 13 towards the opening 12 whilst sweeping the casing 7 , then streams into the duct 15 as symbolised by the arrow 23 . Thus, the condensates present in the casing 7 are removed towards the outside of the casing 7 by way of the opening 12 and then the duct 15 .
- the fan 4 is in suction configuration.
- the invention can be applied to front units in which the fan 4 is in blowing configuration.
- the fan 4 is then located in front of the radiator 3 .
- the fan 4 When the fan is in operation and the motor vehicle is at a standstill (FIG. 5), the fan 4 produces, by blowing, a stream of air symbolised by the arrow 21 which flows towards the rear, which is channelled by the shroud 14 and which passes through the radiator 3 .
- FIGS. 7 and 8 illustrate a second embodiment of the invention, the front unit 1 of which is distinguished from that described in FIGS. 1 to 4 by the fact that the second end 19 of the duct 15 is connected to the space 22 by way of a Venturi device 29 .
- the Venturi device 29 comprises a main passage 30 inside the shroud 14 and an auxiliary passage 31 , one end of which communicates with the main passage 30 and the other end of which communicates with the end 19 of the duct 15 .
- the main passage 30 diverges towards the rear. Its upper wall is formed by the outer wall of the shroud 14 and its lower wall is formed by an inner wall of the shroud 14 .
- the auxiliary passage 31 is a sleeve which projects upwards from the shroud 14 and onto which the end 19 of the duct 15 is fitted.
- the Venturi device 29 operates in a similar manner, likewise ensuring the removal of the condensates by suction through the opening 12 in the casing 7 of the optical unit 2 .
- FIGS. 9 and 10 illustrate a variant of the second embodiment, in which the fan 4 is in blowing configuration.
- the Venturi device 29 therefore acts as a pump ensuring that the flow sweeping the casing 7 is effected by suction in the same direction in each of the cases represented in FIGS. 7 to 10 .
- the above principles may be used in a front unit 1 that does not have a shroud 14 , it being necessary for the second end 19 of the duct 15 to be arranged in the vicinity of the fan 4 , and preferably between the fan 4 and the radiator 3 .
- the heat exchanger 3 may be a condenser or the front unit 1 may comprise a radiator and a condenser placed one behind the other, one or other of those two heat exchangers facing the fan 4 .
Abstract
Description
- The present invention relates to a front unit for a motor vehicle, of the type comprising:
- at least one optical unit which comprises a casing provided with inlet and outlet openings for a flow of air sweeping the inside of the casing,
- a heat exchanger, and
- a fan for producing an airstream passing through the heat exchanger.
- In such a front unit, the flow of air sweeping the casing of each optical unit enables the condensates present therein to be removed and also enables the atmosphere inside the casing to be cooled.
- Generally, the circulation of the air flow is ensured by natural convection.
- In that case, the time necessary to remove the condensates may be too long, so that the condensates present on the glass of the casing impair the operation of the optical unit and its aesthetic quality.
- In order to solve that problem, document FR-2 779 804 has proposed the arrangement of a fan in the casing of each optical unit. Such a fan creates a forced flow of air between the inlet opening and the outlet opening each optical unit. Such a fan creates a forced flow of air between the inlet opening and the outlet opening of the casing, thus enabling the time taken to remove the condensates to be reduced.
- However, that solution is found to be expensive since it makes it necessary to equip each optical unit with a fan. In addition, its implementation poses numerous problems, especially owing to the electrical interference to which the electrical motors of the fans may be subjected, problems involved in the electrical connection of the motors etc.
- An object of the invention is therefore to improve in a simple and economical manner the removal of condensates in the optical unit or units of a front unit of the above-mentioned type.
- To that end, the invention relates to a front unit of the above-mentioned type, characterized in that the front unit comprises a duct, a first end of which is connected to an opening in the casing of the optical unit and a second end of which is arranged in the vicinity of the fan so that the fan produces the flow of air for sweeping the inside of the casing.
- According to particular embodiments, the front unit may comprise one or more of the following features, taken in isolation or according to any technically possible combination:
- it comprises a shroud for channelling the airstream between the fan and the heat exchanger, the second end of the duct being connected to the shroud;
- it comprises a Venturi device which is arranged in the vicinity of the fan and which comprises a divergent main passage and an auxiliary passage connecting the main passage and the second end of the duct;
- the shroud forms the main passage of the Venturi device;
- the main passage diverges in the direction of circulation of the airstream in order to bring about the suction, by way of the second end of the duct, of the flow of air for sweeping the inside of the casing;
- the fan is to be located behind the heat exchanger when the front unit is mounted on the motor vehicle;
- the fan is to be located in front of the heat exchanger when the front unit is mounted on the motor vehicle.
- The invention relates also to a motor vehicle, characterized in that it comprises a front unit as defined above.
- The invention will be better understood on reading the following description which is given purely by way of example and with reference to the appended drawings in which.
- FIG. 1 is a diagrammatic side view of a front unit of a motor vehicle according to a first embodiment of the invention,
- FIG. 2 is an enlarged and sectional diagrammatic view of an optical unit of the front unit of FIG. 1, taken on the line II-II,
- FIGS. 3 and 4 are sectional and diagrammatic upper half-views of the heat exchanger and the fan of the front unit of FIG. 1, illustrating, respectively, the case where the fan is in operation and the vehicle is at a standstill and the case where the fan is not in operation and the vehicle is moving,
- FIGS. 5 and 6 are views analogous to FIGS. 3 and 4, illustrating a variant of the embodiment of FIGS.1 to 4,
- FIGS. 7 and 8 are views analogous to FIGS. 3 and 4, illustrating a second embodiment of the invention, and
- FIGS. 9 and 10 are views analogous to FIGS. 3 and 4, illustrating a variant of the second embodiment of the invention.
- Throughout the following, the orientations used are the normal orientations of a motor vehicle.
- In particular, the terms “front”, “rear”, “right” and “left” are to be understood relative to the position of a driver and to the direction of travel of the motor vehicle.
- FIG. 1 illustrates a
front unit 1 of a motor vehicle which comprises, in particular, two lateraloptical units 2 arranged one on each side of the motor vehicle, aradiator 3 for cooling the heat engine of the motor vehicle, and afan 4 comprising an impeller and anelectrical motor 6 for driving the impeller in rotation. - Owing to the fact that the
front unit 1 is symmetrical relative to a longitudinal, vertical and median plane, only the structures of the left-hand portion of thefront unit 1 and of its left-handoptical unit 2 will be described hereinafter. - The
optical unit 2 is a conventional optical unit comprising acasing 7 formed by an opaquerearward back portion 8 and a transparentfront glass 9 closing theback portion 8. Theoptical unit 2 comprises, inside thecasing 7, aprojector 10 comprising at least one lamp (not shown) and areflector 11. - The
back portion 8 of thecasing 7 may be formed in one piece with a front face supporting theoptical unit 2, theradiator 3 and thefan 4. It may also be, in a conventional manner, an element which is separate from the front face. - The
back portion 8 of thecasing 7 is provided with afirst opening 12 formed in its lower wall and a second opening 13 (FIG. 2) formed in its rear wall. Theopenings - The
fan 4 is arranged behind theradiator 3 to produce, by suction, a stream of air passing through theradiator 3. Thefront unit 1 comprises ashroud 14, sometimes called a duct, which extends between theradiator 3 and theimpeller 5 of thefan 4 in order to channel the airstream created by thefan 4. Theshroud 14 is produced, for example, by moulding a plastics material. - The
front unit 1 also comprises aduct 15, for example in the form of a flexible tube. Afirst end 16 of theduct 15 is connected to thefirst opening 12 of thecasing 7 of theoptical unit 2, for example by way of a feed-throughsleeve 17 receiving abundle 18 of electrical conductors connecting the lamps of theoptical unit 2 to an electrical power supply which is not shown. - The
second end 19 of theduct 15 leads into theshroud 14 between theradiator 3 and theimpeller 5, and therefore to the vicinity of thefan 4. - As illustrated by FIG. 3, the connection of the
end 19 of theduct 15 to theshroud 14 can be effected by way of anair inlet 20 which projects outwards from theshroud 14 and onto which thesecond end 19 is fitted. - When the motor vehicle is at a standstill and the
fan 4 is in operation (FIG. 3), the fan produces, by suction, a stream of air symbolised by thearrow 21. The stream passes through theradiator 3 and flows towards the rear. - A partial vacuum is thus created in the
space 22 delimited on the inside by theshroud 14 between theradiator 3 and theimpeller 5. Since thespace 22 is connected by theduct 15 to thecasing 7 of theoptical unit 2, a forced flow of air towards thespace 22 is created in thecasing 7. That flow of air streams from the opening 13 towards the opening 12 whilst sweeping thecasing 7, then streams into theduct 15 as symbolised by thearrow 23. Thus, the condensates present in thecasing 7 are removed towards the outside of thecasing 7 by way of the opening 12 and then theduct 15. - As illustrated by FIG. 4, when the
fan 4 is not in operation and the vehicle is moving, the relative displacement between the vehicle and the outside air produces a stream of air flowing towards the rear and symbolised by thearrow 21. - The stream of air passes through the
radiator 3 and is then channelled by theshroud 14 towards the rear. As a result, excess pressure occurs in thespace 22. That excess pressure produces in the duct 15 a flow of air which is symbolised by thearrow 23 and which circulates towards thecasing 7. The flow sweeps the inside of thecasing 7 from the opening 12 towards the opening 13. The condensates present inside thecasing 7 are then removed towards the outside of thecasing 7. - In each of those cases, the flow rate of the forced flow of air sweeping the inside of the
casing 7 is relatively high, so that the time taken to remove the condensates is relatively short. - In addition, this result is achieved using the
fan 4 associated with theradiator 3. Consequently, this solution does not require the integration of new fans in the motor vehicle, and in particular inside theoptical units 2. It will therefore be appreciated that this solution is simple and economical to implement. - The presence of the baffles in the
opening 13 of thecasing 7 enables the ingress of dust and water into thecasing 7 to be limited, especially in the case of FIG. 3. - In the
front unit 1 illustrated by FIGS. 3 and 4, thefan 4 is in suction configuration. However, the invention can be applied to front units in which thefan 4 is in blowing configuration. - As illustrated by FIGS. 5 and 6, the
fan 4 is then located in front of theradiator 3. - When the fan is in operation and the motor vehicle is at a standstill (FIG. 5), the
fan 4 produces, by blowing, a stream of air symbolised by thearrow 21 which flows towards the rear, which is channelled by theshroud 14 and which passes through theradiator 3. - Excess pressure is therefore created in the
space 22. That excess pressure produces in the duct 15 a flow of air symbolised by thearrow 23. The flow sweeps the inside of thecasing 7 from theopening 12 towards theopening 13. - As illustrated by FIG. 6, when the motor vehicle is moving and the
fan 4 is not in operation, the relative displacement between the vehicle and the outside air produces a stream of air flowing towards the rear and symbolised by thearrow 21. The stream of air passes through thespace 22 and then theradiator 3. Excess pressure is created inside thespace 22 and brings about the removal of the condensates present inside thecasing 7 by blowing, as in the case of FIGS. 4 and 5. - In contrast to the variant of FIGS.1 to 4, the direction of the air flow sweeping the
casing 7 is identical in the two cases described in relation to FIGS. 5 and 6. - FIGS. 7 and 8 illustrate a second embodiment of the invention, the
front unit 1 of which is distinguished from that described in FIGS. 1 to 4 by the fact that thesecond end 19 of theduct 15 is connected to thespace 22 by way of aVenturi device 29. - The
Venturi device 29 comprises amain passage 30 inside theshroud 14 and anauxiliary passage 31, one end of which communicates with themain passage 30 and the other end of which communicates with theend 19 of theduct 15. - The
main passage 30 diverges towards the rear. Its upper wall is formed by the outer wall of theshroud 14 and its lower wall is formed by an inner wall of theshroud 14. - The
auxiliary passage 31 is a sleeve which projects upwards from theshroud 14 and onto which theend 19 of theduct 15 is fitted. - When the
fan 4 is in operation and the vehicle is at a standstill (FIG. 7) air circulates towards the rear in themain duct 30, as symbolised by thearrow 32. As a result of the Venturi effect, that circulation produces, in theauxiliary passage 31, suction towards theinner space 22. As symbolised by thearrow 33, the suction brings about a flow of air by way of theduct 15 to the inside of thecasing 7, which flow sweeps the casing from theopening 13 towards theopening 12. - When the
fan 4 is at a standstill and the vehicle is moving (FIG. 8) theVenturi device 29 operates in a similar manner, likewise ensuring the removal of the condensates by suction through theopening 12 in thecasing 7 of theoptical unit 2. - FIGS. 9 and 10 illustrate a variant of the second embodiment, in which the
fan 4 is in blowing configuration. - When the motor vehicle is at a standstill and the
fan 4 is in operation (FIG. 9), air circulates in themain passage 30 of theVenturi device 29, as symbolised by thearrow 32 in FIG. 9. In this case too, the circulation produces suction, symbolised by thearrow 33, in theduct 15 which permits removal of the condensates present in thecasing 7 by way of theopening 12. - This is also the case when the
fan 4 is not in operation and the vehicle is moving (FIG. 10) - The
Venturi device 29 therefore acts as a pump ensuring that the flow sweeping thecasing 7 is effected by suction in the same direction in each of the cases represented in FIGS. 7 to 10. - Since the
opening 12 then used to remove the condensates is located in the lower wall of thecasing 7, the removal of the condensates is improved by gravity. - More generally, the above principles may be used in a
front unit 1 that does not have ashroud 14, it being necessary for thesecond end 19 of theduct 15 to be arranged in the vicinity of thefan 4, and preferably between thefan 4 and theradiator 3. - Even more generally, the
heat exchanger 3 may be a condenser or thefront unit 1 may comprise a radiator and a condenser placed one behind the other, one or other of those two heat exchangers facing thefan 4.
Claims (19)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0102754 | 2001-02-28 | ||
FR0102754A FR2821416B1 (en) | 2001-02-28 | 2001-02-28 | FRONT BLOCK COMPRISING AT LEAST ONE OPTICAL BLOCK AND MEANS FOR CREATING AN AIRFLOW, AND CORRESPONDING MOTOR VEHICLE |
Publications (1)
Publication Number | Publication Date |
---|---|
US20020121357A1 true US20020121357A1 (en) | 2002-09-05 |
Family
ID=8860570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/084,353 Abandoned US20020121357A1 (en) | 2001-02-28 | 2002-02-28 | Optical unit for a motor vehicle |
Country Status (3)
Country | Link |
---|---|
US (1) | US20020121357A1 (en) |
EP (1) | EP1236953A1 (en) |
FR (1) | FR2821416B1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100237660A1 (en) * | 2009-03-21 | 2010-09-23 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Covering part |
DE102014220106A1 (en) * | 2014-10-02 | 2016-04-07 | Bayerische Motoren Werke Aktiengesellschaft | Ventilation device for one or more headlights of a motor vehicle |
EP2302293B1 (en) | 2009-09-29 | 2016-06-29 | Valeo Vision | Automotive headlamps comprising a venting pipe |
DE102015221020A1 (en) * | 2015-10-28 | 2017-05-04 | Volkswagen Aktiengesellschaft | Arrangement for cooling a lighting assembly |
DE102017223700A1 (en) * | 2017-12-22 | 2019-06-27 | Volkswagen Aktiengesellschaft | Ventilation system for a motor vehicle light |
US11193647B2 (en) * | 2017-03-28 | 2021-12-07 | Aml Systems | Dehumidifier for a closed vehicle headlamp housing |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10213680A1 (en) * | 2002-03-27 | 2003-10-09 | Hella Kg Hueck & Co | Vehicle headlamp with cooling, includes condenser in headlamp housing, with interceptor and drain for condensate formed |
FR2923891A1 (en) * | 2007-11-16 | 2009-05-22 | Peugeot Citroen Automobiles Sa | Optical unit i.e. headlight, for motor vehicle, has helix housed in hollow interface or conformed conduit to pulsate air that penetrates through air inlet of conduit before air is not delivered by outlet of interface |
DE102015002246B4 (en) | 2015-02-21 | 2017-08-17 | Audi Ag | Lighting device for a motor vehicle, motor vehicle and method for operating a lighting device |
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FR2779804B1 (en) | 1998-06-11 | 2000-09-29 | Valeo Vision | MOTOR VEHICLE PROJECTOR PROVIDED WITH IMPROVED COOLING MEANS, AND ASSOCIATED PLATE CORRECTOR |
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2001
- 2001-02-28 FR FR0102754A patent/FR2821416B1/en not_active Expired - Fee Related
-
2002
- 2002-02-27 EP EP02290474A patent/EP1236953A1/en not_active Withdrawn
- 2002-02-28 US US10/084,353 patent/US20020121357A1/en not_active Abandoned
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US6676283B2 (en) * | 2000-06-14 | 2004-01-13 | Denso Corporation | Front end structure and headlamp system of automotive vehicle |
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US20040149054A1 (en) * | 2003-01-23 | 2004-08-05 | Koito Manufacturing Co., Ltd | Water cloud evaluating device for vehicle lighting fixture |
US20040184284A1 (en) * | 2003-03-07 | 2004-09-23 | Buelow Roger F. | Light appliance and cooling arrangement |
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US20100237660A1 (en) * | 2009-03-21 | 2010-09-23 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Covering part |
US8172314B2 (en) | 2009-03-21 | 2012-05-08 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Covering part |
EP2302293B1 (en) | 2009-09-29 | 2016-06-29 | Valeo Vision | Automotive headlamps comprising a venting pipe |
EP2302293B2 (en) † | 2009-09-29 | 2019-06-19 | Valeo Vision | Automotive headlamps comprising a venting pipe |
DE102014220106A1 (en) * | 2014-10-02 | 2016-04-07 | Bayerische Motoren Werke Aktiengesellschaft | Ventilation device for one or more headlights of a motor vehicle |
DE102015221020A1 (en) * | 2015-10-28 | 2017-05-04 | Volkswagen Aktiengesellschaft | Arrangement for cooling a lighting assembly |
US11193647B2 (en) * | 2017-03-28 | 2021-12-07 | Aml Systems | Dehumidifier for a closed vehicle headlamp housing |
US20220057068A1 (en) * | 2017-03-28 | 2022-02-24 | Aml Systems | Dehumidifier for a closed vehicle headlamp housing |
US11708959B2 (en) * | 2017-03-28 | 2023-07-25 | Aml Systems | Dehumidifier for a closed vehicle headlamp housing |
DE102017223700A1 (en) * | 2017-12-22 | 2019-06-27 | Volkswagen Aktiengesellschaft | Ventilation system for a motor vehicle light |
Also Published As
Publication number | Publication date |
---|---|
EP1236953A1 (en) | 2002-09-04 |
FR2821416B1 (en) | 2003-10-10 |
FR2821416A1 (en) | 2002-08-30 |
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