• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a cleaning device (5) for an optical sensor module (3) (9) of a motor vehicle comprising a housing (7), an optical sensor (9) housed in the housing (7), characterized in that that the cleaning device (5) comprises on the one hand a cylindrical flange (21) having first detent members (23) shaped to cooperate with second detent members (25) carried by the module (3) sensor (9), the first (23) and second (25) latching members being so configured that in the mounted state, the axis of the cylindrical collar (21) coincides with the optical axis ( A) the optical sensor (9), and on the other hand at least one pipe (35; 37) having projection orifices (350; 370) is fixed to the inner wall (33) of the cylindrical collar (21), the projection orifices (350; 370) being oriented in the direction of the optics (9).
    公开号:FR3047458A1
    申请号:FR1650997
    申请日:2016-02-09
    公开日:2017-08-11
    发明作者:Christophe Chassaing；Gregory Kolanowski；Julien Carrion；Chantal Marquet
    申请人:Valeo Systemes dEssuyage SAS；
    IPC主号:
    专利说明:

    DEVICE FOR CLEANING AN OPTICAL DETECTION SYSTEM OF A MOTOR VEHICLE
    The present invention relates to the field of driving assistance and in particular to optical detection systems such as cameras, installed on certain vehicles. More particularly, the invention relates to a device for cleaning such an optical detection system especially for driving assistance so that the quality of the information provided to the driver is optimal.
    An optical detection system is any system comprising optical sensors, such as cameras, laser sensors (commonly called LIDARS) or other sensors based on the emission and / or detection of light in the visible or invisible spectrum for humans , especially the infrared.
    Nowadays, especially rear vision cameras equip a large number of the current motor vehicles, and they are part of a parking assistance system that makes it easier to park in a location without turning and to detect the obstacles behind the vehicle.
    Cameras are known which are installed inside the cockpit against the rear window / bezel looking towards the rear from the rear window of the vehicle. These cameras are well protected from external climatic influences and can for example benefit from the defrosting and cleaning systems of the rear window, for example a heating wire integrated in the glass of the rear window.
    However, the angle of view is not optimal, especially for parking assistance and for this reason, it is preferred that the camera is arranged at the rear bumper or at the rear registration plate of the vehicle .
    In this case, the camera is highly exposed to the projections of dirt that can be deposited on its optics and thus reduce its effectiveness, or even make it inoperative.
    Especially in rainy weather, there are projections of rain and dirt that can greatly affect the operability of the optical detection system.
    To counteract the deposition of dirt on the camera, it is known to arrange a device for cleaning the optics of the camera, usually a nozzle of cleaning fluid, close to it, to remove the polluting elements that are deposited over time.
    Document US2015 / 0040953 describes such a cleaning device which comprises in a first embodiment a lateral projection nozzle which can snap onto shaped lateral protuberances of a housing containing the camera. However, this solution is too cumbersome and too visible to the naked eye for a user and harms aesthetics. In addition, the side spray nozzle can only spray a wash liquid, which can lead to traces if drops of washing liquid remain on the lens or the camera protection window.
    According to a second embodiment, a cleaning device is made in the form of a molded piece of plastic material and is assembled in front of the camera. However, this molded part which has internal channels for the washing liquid, is complex to manufacture and expensive.
    The present invention proposes to remedy at least partially one or more of the aforementioned disadvantages by presenting a cleaning device for an alternative optical detection system making it easy to adapt while being inexpensive and easy to assemble. For this purpose, the subject of the invention is a cleaning device for an optical sensor module of a motor vehicle comprising a housing, an optical sensor housed in the housing, characterized in that the cleaning device comprises on the one hand a cylindrical flange having first latching members shaped to cooperate with second latching members carried by the sensor module, the first and second latching members being configured so that in the mounted state, the axis of the cylindrical flange is coincident with the optical axis of the optical sensor, and secondly at least one pipe having projection orifices is fixed to the inner wall of the cylindrical collar, the projection orifices being oriented in the direction of the optical.
    The cleaning device according to the invention may furthermore have one or more of the following characteristics, taken alone or in combination:
    According to one aspect, the first latching members comprise ramps adapted to cooperate with a circular groove forming the second detent members and arranged in a support of the sensor module.
    In another aspect, the device comprises three first detent members regularly distributed on the inner wall of the cylindrical collar.
    The first detent members are for example made in one piece with the cylindrical collar.
    According to yet another aspect, the device comprises a first and a second pipe each having projection orifices and fixed in parallel relative to each other against the inner wall of the cylindrical collar, the first pipe being intended to project a washing liquid, the second pipe being intended for blowing compressed air.
    The first and second pipes have, for example, different diameters, in particular the second pipe has a diameter smaller than the first pipe.
    Said at least one first pipe can be fixed by gluing against the inner wall of the cylindrical collar.
    Said at least one first pipe extends for example only on half of the inner periphery of the cylindrical collar. The invention also relates to an optical sensor module comprising a housing, an optical sensor housed in the housing, characterized in that it comprises a cleaning device as defined above. Other advantages and characteristics will appear on reading the description of the invention, as well as the single appended drawing which shows a simplified exploded perspective diagram and with a partial tearing of an optical detection system according to a method of production.
    The achievements described are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the features apply only to a single embodiment. Simple features of different embodiments may also be combined to provide other embodiments.
    FIG. 1 shows an embodiment of an optical detection system 1 according to the invention for a motor vehicle.
    The optical detection system 1 is for example intended to be mounted at the rear of a motor vehicle, for example at a bumper or a license plate (not shown). It can also for example be mounted on the sides of the vehicle, for example to replace side mirrors.
    The optical detection system 1 comprises an optical sensor module 3, in particular a camera and an optical cleaning device 5 of the optical sensor module 3.
    The optical sensor module 3, for example a camera module, comprises a housing 7, an optical sensor 9 in particular (schematically dashed), housed in the housing 7, and an optic 11, in particular a glass pane. 12, arranged in front of the sensor 9 and forming at least a wall portion of the housing 7.
    The housing 7 hermetically encloses the optical sensor.
    The protective glass 11 may be made of glass or crystal polycarbonate.
    The optical sensor 9 is for example a CCD sensor (for "coupled coupled device" or a charge coupled device) or a CMOS sensor composed of a matrix of miniature photodiodes. According to another variant, it may be a LIDAR sensor. Optics 11 comprises, for example, a convex (curved) lens such as fish-eye optics.
    In general, the optic 11 comprises any optical element such as, for example, the protective window 12 and a lens disposed in front of the sensor 9. Under certain conditions, there is no protective window and this function is provided by the lens sealingly attached to the housing 7.
    The optical sensor 9 is installed in the module 3 so as to aim through said protective glass 12 along its optical axis A.
    The cleaning device 5 comprises a cylindrical flange 21 having first detent members 23 shaped to cooperate with second associated detent members 25 carried by the sensor module 3.
    The first and second ratchet members 23 are configured such that, in the mounted state, the axis of revolution of the cylindrical flange 21 coincides with the optical axis A of the optical sensor 9.
    As shown in FIG. 1, the first detent members 23 comprise, for example, ramps adapted to cooperate with a circular groove forming the second detent members 25 and arranged in a support 31 of the optic 11, for example the Objective, arranged in front of the optical sensor 9. Of course, one can also consider forming the second detent members 25 by three individual notches instead of a peripheral groove.
    According to one embodiment, it is expected that the first three latching members 23 are evenly distributed on an inner wall 33 of the cylindrical collar 21 to facilitate centering.
    The first latching members 23 are in particular made in one piece with the cylindrical flange 21.
    The cleaning device 5 further comprises at least one, in this case a first 35 and a second 37 pipes each having projection holes 350 and 370, respectively.
    The first 35 and second 37 pipes are fixed parallel to each other to the inner wall 33 of the cylindrical collar 21, for example by gluing. These include, for example, flexible and flexible rubber hoses. According to a variant not shown, it is possible to use flat pipes and not with a circular diameter, which makes it easier to fix by gluing.
    According to a variant not shown, there is provided internally fixed on the inner wall 33 hooks arranged on both sides and staggered to secure the pipes 35 and 37 and retain them in position. The hooks are for example also integral with the cylindrical collar 21.
    The two pipes 35 and 37 are arranged in such a way that the projection orifices 350 and 370 are oriented in the direction of the optics 11 arranged in front of the optical sensor 9.
    The first pipe 35 is intended for spraying a washing liquid and is connected to a reservoir of a washing liquid with a pump (not shown). The second pipe 37 is intended to project compressed air and is connected to an air compressor (not shown).
    Thus, after having sprayed a washing liquid on the optic 11, the projection of the compressed air makes it possible to drive out any residual drops and soils that could leave traces after drying.
    To optimize firstly the bulk of the first 35 and second 37 pipes, they have different diameters, in particular the second pipe 37 for the projection of the compressed air has a diameter smaller than the first pipe 35 for the washing liquid.
    For the sake of economy and also the evacuation of the projected washing liquid, the first 35 and second 37 pipes extend only over the half, in particular upper, of the inner periphery of the cylindrical flange 21.
    It is thus clear that the cleaning device according to the invention is very easily adapted to any optical detection system, including existing optical detection systems, for which it is possible to provide them with the cleaning device in the aftermarket. It is characterized by a low cost, few parts and reduced complexity, while allowing effective cleaning of the optics 11. It can be mounted and dismounted easily on an optical detection system 1, which also facilitates actions of maintenance, for example in case of plugging of the first 35 or second 37 pipes and / or the projection orifices 350 and 370.
    权利要求:
    Claims (9)
    [1" id="c-fr-0001]
    1. Cleaning device (5) for an optical sensor module (3) (9) of a motor vehicle comprising a housing (7), an optical sensor (9) housed in the housing (7), characterized in that the cleaning device (5) comprises on the one hand a cylindrical flange (21) having first detent members (23) shaped to cooperate with second detent members (25) carried by the sensor module (3) ( 9), the first (23) and second (25) latching members being so configured that in the mounted state the axis of the cylindrical collar (21) coincides with the optical axis (A) of the an optical sensor (9) and at least one pipe (35; 37) having projection holes (350; 370) is attached to the inner wall (33) of the cylindrical collar (21), projection (350; 370) being oriented toward the optics (9).
    [2" id="c-fr-0002]
    2. Cleaning device according to claim 1, characterized in that the first detent members (23) comprise ramps adapted to cooperate with a circular groove forming the second detent members (25) and arranged in a support (31). ) of the sensor module (3) (9).
    [3" id="c-fr-0003]
    3. Cleaning device according to claim 1 or 2, characterized in that it comprises three first latching members (23) regularly distributed on the inner wall (33) of the cylindrical collar (21).
    [4" id="c-fr-0004]
    4. Cleaning device according to any one of claims 1 to 3, characterized in that the first detent members (23) are formed integrally with the cylindrical collar (21).
    [5" id="c-fr-0005]
    5. A cleaning device according to any one of claims 1 to 4, characterized in that it comprises a first (35) and a second (37) pipes each having projection orifices (350, 370) and set parallel to each other. one against the other against the inner wall (33) of the cylindrical collar (21), the first pipe (35) being intended to spray a washing liquid, the second pipe (37) being intended for projecting 'pressurized air.
    [6" id="c-fr-0006]
    6. Cleaning device according to claim 5, characterized in that the first (35) and the second (37) pipes have different diameters, in particular the second pipe (37) has a diameter smaller than the first pipe (35). .
    [7" id="c-fr-0007]
    7. Cleaning device according to any one of claims 1 to 6, characterized in that said at least one first pipe (35) is fixed by gluing against the inner wall (33) of the cylindrical collar (21).
    [8" id="c-fr-0008]
    8. Cleaning device according to any one of claims 1 to 7, characterized in that said at least one first pipe (35) extends only half of the inner periphery of the cylindrical collar (21).
    [9" id="c-fr-0009]
    9. An optical sensor module (3) comprising a housing (7), an optical sensor (9) housed in the housing (7), characterized in that it comprises a cleaning device (5) according to any one of the Claims 1 to 8.
    类似技术:
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    同族专利:
    公开号 | 公开日
    MX2018009629A|2018-12-17|
    RU2018132061A|2020-03-11|
    JP6786629B2|2020-11-18|
    WO2017137277A1|2017-08-17|
    EP3414135B1|2020-01-29|
    FR3047458B1|2018-03-02|
    BR112018015920A2|2018-12-26|
    EP3414135A1|2018-12-19|
    KR20180110093A|2018-10-08|
    JP2019504801A|2019-02-21|
    US20210188218A1|2021-06-24|
    CN108778859A|2018-11-09|
    RU2018132061A3|2020-04-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    KR20110026220A|2009-09-07|2011-03-15|삼성전기주식회사|System for removing freign matters from lens of camera module of vehicle|
    CN201923085U|2010-11-26|2011-08-10|粱金龙|Lens cleaning device for reversing camera|
    EP2949521A1|2014-05-27|2015-12-02|Fico Transpar, S.A.|Cleaning device and system for vehicle-mountedoptic surface and vehicle-mounted optic sensor with cleaning device|
    JP5056919B2|2009-09-29|2012-10-24|株式会社デンソー|In-vehicle optical sensor cover and in-vehicle optical sensor device|
    TWM398497U|2010-10-08|2011-02-21|Jin-Long Liang|Lens cleaner device of a vehicle reversing camera|
    US10432827B2|2011-03-10|2019-10-01|Dlhbowles, Inc.|Integrated automotive system, nozzle assembly and remote control method for cleaning an image sensors exterior or objective lens surface|
    RU2582478C1|2012-07-27|2016-04-27|Ниссан Мотор Ко., Лтд.|Vehicle-mounted camera device|
    GB201217007D0|2012-09-24|2012-11-07|Electro Mechanical Systems|Wiper|
    JP6379665B2|2013-08-12|2018-08-29|株式会社デンソー|In-vehicle optical sensor cleaning device|
    JP6348770B2|2014-05-08|2018-06-27|日産自動車株式会社|Camera device and three-dimensional object detection device|
    EP2949520B1|2014-05-27|2018-03-21|Fico Transpar, S.A.|System for cleaning a vehicle-mounted optic lens|US10350647B2|2011-03-10|2019-07-16|Dlhbowles, Inc.|Integrated automotive system, nozzle assembly and remote control method for cleaning an image sensor's exterior or objective lens surface|
    US10432827B2|2011-03-10|2019-10-01|Dlhbowles, Inc.|Integrated automotive system, nozzle assembly and remote control method for cleaning an image sensors exterior or objective lens surface|
    CA2982271C|2014-04-11|2021-08-24|Russell Hester|Integrated automotive system, compact, low-profile nozzle assembly and compact fluidic circuit for cleaning a wide-angle image sensor's exterior surface|
    US10525937B2|2014-04-16|2020-01-07|Dlhbowles, Inc.|Integrated multi image sensor and lens washing nozzle assembly and method for simultaneously cleaning a plurality of image sensors|
    US10773273B2|2018-01-31|2020-09-15|Ford Global Technologies, Llc|Sensor washer system with annular nozzle assembly|
    FR3082478B1|2018-06-19|2021-11-26|Valeo Systemes Dessuyage|MODULE FOR CLEANING AN OPTICAL ELEMENT OR A PROTECTION DEVICE FOR AN OPTICAL ELEMENT AND ASSOCIATED DRIVING ASSISTANCE SYSTEM|
    US10908002B2|2018-11-14|2021-02-02|Ford Global Technologies, Llc|Sensor airflow apparatus|
    法律状态:
    2017-02-28| PLFP| Fee payment|Year of fee payment: 2 |
    2017-08-11| PLSC| Publication of the preliminary search report|Effective date: 20170811 |
    2018-02-26| PLFP| Fee payment|Year of fee payment: 3 |
    2020-02-28| PLFP| Fee payment|Year of fee payment: 5 |
    2021-11-12| ST| Notification of lapse|Effective date: 20211005 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1650997|2016-02-09|
    FR1650997A|FR3047458B1|2016-02-09|2016-02-09|DEVICE FOR CLEANING AN OPTICAL DETECTION SYSTEM OF A MOTOR VEHICLE|FR1650997A| FR3047458B1|2016-02-09|2016-02-09|DEVICE FOR CLEANING AN OPTICAL DETECTION SYSTEM OF A MOTOR VEHICLE|
    PCT/EP2017/051996| WO2017137277A1|2016-02-09|2017-01-31|Device for cleaning an optical detection system of a motor vehicle|
    CN201780014981.7A| CN108778859A|2016-02-09|2017-01-31|Device for the Systems for optical inspection for cleaning motor vehicles|
    JP2018560721A| JP6786629B2|2016-02-09|2017-01-31|Equipment for cleaning the optical detection system of automobiles|
    KR1020187026046A| KR20180110093A|2016-02-09|2017-01-31|Devices for cleaning of optical detection systems of automobiles|
    RU2018132061A| RU2018132061A3|2016-02-09|2017-01-31|
    BR112018015920-4A| BR112018015920A2|2016-02-09|2017-01-31|cleaning device of a motor vehicle optical detection system|
    MX2018009629A| MX2018009629A|2016-02-09|2017-01-31|Device for cleaning an optical detection system of a motor vehicle.|
    EP17702105.2A| EP3414135B1|2016-02-09|2017-01-31|Device for cleaning an optical detection system of a motor vehicle|
    US16/076,088| US20210188218A1|2016-02-09|2017-01-31|Device for cleaning an optical detection system of a motor vehicle|
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