WO2024061990A1 - Cleaning device comprising nozzles - Google Patents

Cleaning device comprising nozzles Download PDF

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Publication number
WO2024061990A1
WO2024061990A1 PCT/EP2023/075977 EP2023075977W WO2024061990A1 WO 2024061990 A1 WO2024061990 A1 WO 2024061990A1 EP 2023075977 W EP2023075977 W EP 2023075977W WO 2024061990 A1 WO2024061990 A1 WO 2024061990A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
primary
fluid
outlet
aspects
Prior art date
Application number
PCT/EP2023/075977
Other languages
French (fr)
Inventor
Loic Roussel
Cyrille GIRODOT
Vincent Garibaldi
Nicolas Kuchly
Andy CHAMPION
Original Assignee
Valeo Systèmes d'Essuyage
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Systèmes d'Essuyage filed Critical Valeo Systèmes d'Essuyage
Publication of WO2024061990A1 publication Critical patent/WO2024061990A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/54—Cleaning windscreens, windows or optical devices using gas, e.g. hot air
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation

Definitions

  • the present invention relates to a device for cleaning an optical surface of an optical device, in particular for a vehicle.
  • the optical device such as an optical sensor is used to assist the driver of a vehicle, in particular a motor vehicle, in his driving.
  • the optical sensor generally speaking, placed outside the vehicle in strategic areas to improve the driver's visibility, for example to compensate for blind spots.
  • a plurality of the optical devices can be placed outside the vehicle in the context of autonomous driving. These devices, when subjected to prolonged exposure to weather and dust, become covered with a layer of dirt on the optical surface. It is then necessary to regularly clean this optical surface so that the optical device can function correctly.
  • the cleaning device comprising a nozzle can be used to regularly clean the optical surface.
  • the invention aims to reduce the bulk of a cleaning device comprising fluid nozzles.
  • the present invention thus relates to a device for cleaning the optical surface of an optical device, in particular for a vehicle, comprising:
  • a primary nozzle arranged to distribute a first fluid, and comprising:
  • the invention thus makes it possible to reduce the bulk of the cleaning device thanks to the fact that the path traveled by the first fluid is shared between the primary nozzle and the secondary nozzle.
  • the device according to the invention has better compactness than a conventional cleaning device comprising, for example an air nozzle and a water nozzle with two distinct channels so that there is washing by water on one side and air blowing on the other.
  • the primary jet surrounds the secondary jet at least at the outlet of the secondary jet, at least on half of the circumference of the secondary jet.
  • the primary jet surrounds the secondary jet all around the secondary jet.
  • jet we mean the flow of fluid which is at the outlet of each nozzle.
  • the primary and secondary “jets” refer to the flow of fluid at the primary and secondary outlets, respectively.
  • path is used for the entire fluid path, whether inside the nozzle or outside the nozzle.
  • the path outside the nozzle forms the “jet” of fluid.
  • upstream and downstream refer to the direction of flow of the fluid in the cleaning device of the optical device.
  • upstream refers to the side of the cleaning device through which this fluid is admitted into the device
  • downstream refers to the side of the device through which the fluid is projected outside it, towards a surface of an optical device.
  • the path is “internal” when it is “inside” the nozzle or “upstream of” the nozzle outlet while the path is “external” or is “outside” when it is “downstream of” the nozzle outlet.
  • At least one portion of the secondary nozzle is arranged in the internal channel of the primary nozzle.
  • the secondary outlet is in a common section of the internal channel of the primary nozzle opening onto the primary outlet.
  • the secondary outlet is located upstream of the primary nozzle. This feature is advantageous in that the cleaning device is more compact.
  • the second fluid is mixed with the first fluid upstream of the primary nozzle. It is understood that the secondary outlet is placed sufficiently upstream of the primary outlet so that the first fluid and the second fluid can be mixed homogeneously.
  • This feature is advantageous in that a uniform mixture of the first liquid and the second liquid is sprayed onto the optical surface, thereby increasing the cleaning performance of the optical surface. Thanks to this characteristic, the washing time and the quantity of first fluid and second fluid are reduced.
  • the primary nozzle comprises a housing arranged to at least partially receive the secondary nozzle.
  • the primary nozzle comprises a front part arranged to face the optical device, and the housing being at least partially formed by this front part and the primary outlet is produced on this front part.
  • the housing extends adjacent to the ramp.
  • the front part is located on the cover of the primary nozzle.
  • the primary output comprises a primary slot.
  • the secondary outlet comprises a secondary slot.
  • the primary slot has an oblong shape.
  • the secondary slot has the shape of a growing moon.
  • the primary slot is wider than the secondary slot.
  • the secondary slot faces the primary slot.
  • the secondary nozzle is provided with a hollow head at the end of which the secondary outlet is produced and with a base.
  • the secondary nozzle comprises a cylindrical body to which the hollow head is connected.
  • the housing of the primary nozzle has a cylindrical shape capable of receiving the secondary nozzle.
  • the hollow head and/or the cylindrical body of the secondary nozzle are at least partially housed in the housing of the primary nozzle.
  • the length of the common section is preferably five times, more particularly two times smaller than the diameter of the hollow head of the secondary nozzle.
  • At least one portion of the secondary nozzle is arranged downstream of the primary outlet.
  • the cleaning device comprises a fluid reservoir located upstream of an internal channel of the primary nozzle or of a distribution channel of the secondary nozzle.
  • the base includes a fluid inlet whose orientation is imposed by the environment of the sensor.
  • the orientation is chosen which makes it possible to direct the fluid towards the optical surface of the optical device.
  • the invention makes it possible to choose an orientation of the cleaning device so that this orientation is adapted to an arrangement and a geometry of optical devices of a vehicle, without changing the initial design of the cleaning device.
  • the invention makes it possible to reduce the cost of manufacturing and assembling the device.
  • the invention may also have one of the following characteristics, alone or in combination with one or more other characteristics below.
  • the base and the cover each have a perimeter having the same shape.
  • the perimeters of the base and the cover have the same shapes as the contact lines.
  • the contact lines are adjacent to the perimeters of the base and the cover.
  • the cover is fixed on the base.
  • the cover and the base are fixed using a welding strip.
  • the cover or the base comprises a groove configured to receive the welding strip.
  • the welding strip and/or the groove run along the contact line.
  • the axis of rotation has a symmetry of order n, namely 2 ⁇ /n (rad), with n positive integer greater than or equal to 2.
  • the cover and the base have a substantially square shape with rounded corners.
  • the cleaning device can be oriented in 4 possible orientations with an angle between the fluid inlet and the fluid outlet which varies in steps of 90°.
  • the device remains invariant by a rotation of a multiple of 90° around its center.
  • the cleaning device can be oriented according to the 3 possible orientations among the 4 orientations authorized by the shape of the substantially square perimeter, except that corresponding to the direction of the fluid inlet.
  • the cover is mounted on the base so that the cover can be rotated relative to the base.
  • the cleaning device can be oriented at a plurality of angles between 0 and 360° between the fluid inlet and the fluid outlet.
  • the device remains invariant by rotation at any angle between 0 and 360°.
  • the cover and the base have a circular shape.
  • the cover and the base are configured to allow a plurality of relative positions with a determined step between two successive positions, for example, at a step of between 1 - 10°, more particularly at a pitch between 1 – 5°.
  • the optical device is a camera, in particular an infrared camera, preferably arranged to assist autonomous driving, advantageously arranged to detect the presence of drops of water on glass.
  • a plurality of these cameras can be located on the vehicle, in particular outside the vehicle.
  • the invention also relates to a method of manufacturing a device for cleaning the optical surface of an optical device, in particular for a vehicle, the device comprising a nozzle arranged to distribute a fluid, and the method comprising the following steps :
  • - provide a cover comprising a fluid outlet configured to direct the fluid towards the optical surface of the optical device
  • the method comprises a step of ultrasonic welding of the base on the cover.
  • the nozzle is an adjustable nozzle.
  • the invention may relate to the device with a primary nozzle and a secondary nozzle.
  • the “primary nozzle” we mean the adjustable nozzle described above.
  • the invention also relates to a device for cleaning an optical surface of an optical device, in particular for a vehicle, comprising the fluid nozzle configured to be assembled with a support of the optical device, the nozzle comprising:
  • At least one retaining member configured to cooperate by snapping with at least one complementary retaining member of the support, so as to allow the nozzle to snap into place on the support.
  • the invention makes it possible to simplify the mounting of the optical device on the fluid nozzle, because assembly does not require special tools or mechanical fixing elements. additional items such as screws.
  • the guide member comprises at least one slide arranged to cooperate with the complementary guide member.
  • the guide member comprises two slides which face each other on the fluid nozzle.
  • the two slides are symmetrical to each other with respect to a plane of symmetry (P) passing through the middle of the base of the cover of the fluid nozzle.
  • At least one slide comprises at least two parallel ramps and connected together by at least one crosspiece, so that the ramps and the crosspiece define a rail on which one of the walls of the support may slip.
  • the slide comprises at least two crosspieces connecting the ramps.
  • the guide member comprises, in addition to the slide, at least one end-of-travel partition closing the end of the rail forming the slide, the partition being arranged to cooperate with an element of support stop.
  • the retaining member comprises a retaining protuberance.
  • the holding protuberance is located parallel to the plane of symmetry (P).
  • the crosspiece of the slide is arranged to cooperate with a latch tab for holding the complementary retaining member of the support.
  • the nozzle guide member comprises an external slide arranged to cooperate with the complementary guide member formed on an internal wall of the support.
  • the nozzle is the primary nozzle or the adjustable nozzle.
  • the invention may relate to the device with the primary nozzle and the secondary nozzle.
  • the complementary guide member is arranged to cooperate with at least one slide of the guide member.
  • the complementary guide member arranged to cooperate with a slide of the guide member, is formed on a wall of the support.
  • the complementary guide member arranged to cooperate with an external slide of the guide member, is formed on the internal wall of the support.
  • the complementary guide member has a U shape.
  • the support stop element is arranged to cooperate with an end-of-stroke partition closing the end of a rail forming the nozzle slide.
  • the complementary retaining member further comprises at least one latching tab arranged to cooperate with a retaining protuberance of the retaining member of the nozzle.
  • the complementary retaining member comprises at least one latching tab arranged to cooperate with a crosspiece of the nozzle slide.
  • the complementary retaining member comprises at least two latching tabs arranged to cooperate with at least two crosspieces of the nozzle slide.
  • the latching tab is located on an internal wall of the support.
  • the device includes a secondary nozzle in addition to the aforementioned nozzle, which can be considered as a primary nozzle or an adjustable nozzle described above.
  • the invention also relates to an assembly comprising a cleaning device according to the invention and a support according to the invention, the device and the support being assembled together by cooperation of the respective guide and retaining members.
  • the nozzle of the cleaning device comprises a base and a cover each having a contact line configured to come into complete contact with one another, the contact lines being tangent to a common plane and having at least one rotational symmetry around an axis of rotation perpendicular to the common plane, and the support being arranged to cooperate with the cover located on one of the half-spaces, namely an upper half-space or a lower half-space, located on either side of the common plane.
  • the maximum dimension of the nozzle is larger than the maximum dimension of the support.
  • the support is an element set back from the fluid outlet.
  • this characteristic we mean the fact that the support does not surround the fluid outlet. In other words, the fluid outlet is outside the support.
  • the cover comprises two ramps, for example an upper ramp and a lower ramp, parallel to each other extending from the promontory.
  • each ramp is inclined relative to the plane parallel to the promontory, in particular substantially inclined at 45° from the plane.
  • the periphery of the promontory has an oblong shape.
  • the primary exit is located at the top of the promontory.
  • the periphery of the summit of the promontory substantially matches the periphery of the primary outlet, these two peripheries having an oblong shape.
  • the raised part includes a bulge which extends from the top of the promontory.
  • the base comprises an inlet tube, preferably in an elbow shape, comprising a fluid inlet, in particular a first fluid inlet.
  • This inlet pipe is arranged to be connected to a pipe, in particular a flexible pipe, for supplying fluid.
  • the cover comprises a second fluid inlet.
  • the first fluid and second fluid inlets are each configured to allow the connection of a fluid supply pipe, respectively to the primary nozzle and the secondary nozzle.
  • the inlet pipe opens onto a fluid opening of divergent shape.
  • the base comprises at least one reinforcing rib joining the inlet pipe.
  • At least two reinforcing ribs extend perpendicular to the direction of fluid circulation in the inlet tubing.
  • the cover comprises at least one reinforcing rib.
  • the reinforcing rib of the cover is located perpendicular to the crosspiece of the slide.
  • the cover comprises an outlet passage arranged to receive the hollow head of the secondary nozzle.
  • the outlet passage in particular circular, is located on a wall of the internal channel of the primary nozzle.
  • the housing comprises at its entrance at least one wing, preferably two wings symmetrical with respect to the plane of symmetry (P).
  • the wing comprises an orifice arranged to cooperate with a latching tab of the member holding the secondary nozzle.
  • the housing further comprises an extension located at the entrance to the housing.
  • the housing comprises a lip at the entrance to the housing facing the extension.
  • the base of the secondary nozzle further comprises at least one holding member and at least one guiding member, these members each being arranged to cooperate with the housing of the primary nozzle.
  • the guide member of the secondary nozzle comprises a keying device arranged to cooperate with a groove in the housing of the primary nozzle so as to form a sliding connection through an axis (A) the along the length of the accommodation.
  • the keying device is a tab.
  • the member for holding the secondary nozzle comprises at least one latching tab arranged to cooperate with the orifice in the wing of the housing of the primary nozzle.
  • the member for holding the secondary nozzle comprises an upper projection arranged to cooperate with the extension of the housing of the primary nozzle.
  • the member for holding the secondary nozzle comprises a lower projection arranged to cooperate with the lip of the housing of the primary nozzle.
  • the upper and lower projections are symmetrical to each other with respect to the plane parallel to the plane of the base of the cover and passing through the middle of the housing.
  • the housing of the primary nozzle comprises an O-ring arranged to wedge the secondary nozzle in the primary nozzle.
  • the primary fluid outlet or the secondary fluid outlet has a divergent shape.
  • the jet of fluid which comes from this fluid outlet has a divergent shape, for example with a substantially triangular profile.
  • the primary fluid outlet or the secondary fluid outlet is formed by facets configured to generate the divergent jet.
  • the cover or the base is in one piece.
  • the cover and/or the base are made of metal or plastic.
  • the cover or the base is produced by molding or machining.
  • the fluid is air alone, or a liquid alone, or a mixture of liquid and air.
  • This mixture of liquid and air can form a foam projected onto the optical surface to be cleaned.
  • the air pressure is 0.1 to 0.3 bar per air outlet, preferably substantially equal to 0.2 bar per air outlet.
  • the water pressure is 0.5 to 3 bar per water outlet, preferably 1.5 to 2 bar per water outlet.
  • FIG. 1 is a top view of the primary nozzle and secondary nozzle outlets.
  • FIG. 1 is a schematic and partial view, illustrating the secondary nozzle and the base forming the primary nozzle, in perspective,
  • FIG. 1 is a schematic and partial view, in section, of the base of the primary nozzle comprising a fluid outlet having a divergent shape
  • FIG.14 is a schematic and partial view of [Fig.14], illustrating in particular stop elements cooperating with the slides,
  • FIG. 1 is a schematic and partial view of a primary fluid nozzle comprising slides with two crosspieces according to an alternative embodiment
  • FIG. 1 is a schematic and partial view of an alternative embodiment in which a portion of the secondary nozzle is arranged downstream of the primary outlet.
  • Figures 1 to 3 show a cleaning device 2 for the optical surface 4 of an optical device 6, in particular for a vehicle (not shown).
  • the cleaning device 2 comprises a primary nozzle 8 arranged to distribute a first fluid.
  • the primary nozzle 8 comprises a primary fluid outlet 10 arranged to project a primary jet of the first fluid towards the optical surface 4 of the optical device 6 and an internal channel 12 of the primary nozzle 8 which opens onto the primary outlet 10.
  • the cleaning device 2 further comprises a secondary nozzle 14 arranged to distribute a second fluid.
  • the primary nozzle 8 comprises a housing 16 arranged to partially receive the secondary nozzle 14.
  • the primary nozzle 8 has a front part 18 arranged to face the optical device 6.
  • the housing 16 of the primary nozzle 8 is partially formed by this front part 18 and the primary outlet 10 is produced on this front part 18.
  • the secondary nozzle 14 comprises a secondary fluid outlet 20 arranged to project a secondary jet of the second fluid towards the optical surface 4 of the optical device 6 and a distribution channel 22 of the secondary nozzle 14 configured to convey the fluid to the outlet secondary 20.
  • the primary 10 and secondary 20 outlets are configured so that the secondary outlet 20 is placed on the path traveled by the first fluid.
  • a portion of the secondary nozzle 14 is arranged in the internal channel 12 of the primary nozzle 8.
  • the secondary outlet 20 is in a common section 24 of the interior channel 12 of the primary nozzle 8 opening onto the primary outlet 20.
  • the second fluid is mixed with the first fluid upstream of the primary nozzle 8.
  • the first fluid is for example air and the second liquid is for example a windshield washer fluid so that the mixture of air and the windshield washer fluid forms a foam to be projected onto the optical surface to be cleaned. .
  • the primary outlet 10 has a primary slot 26 and the secondary outlet 20 has a secondary slot 28.
  • the primary slot 26 is wider than the secondary slot 28.
  • the secondary slot 28 faces the primary slot 26.
  • the primary slot 26 has an oblong shape while the secondary slot 28 has the shape of a growing moon.
  • the secondary nozzle 14 is provided with a hollow head 30 at the end of which the secondary outlet 20 is made and with a base 32.
  • the secondary nozzle 14 comprises a cylindrical body 34 to which the hollow head 30 is connected.
  • the housing 16 of the primary nozzle 8 has a cylindrical shape capable of receiving the secondary nozzle 14.
  • the hollow head 30 and the cylindrical body 34 of the secondary nozzle 20 are partially housed in the housing 16 of the primary nozzle 8.
  • the length of the common section 24 is twice as small as the diameter of the hollow head 30 of the secondary nozzle 20.
  • the primary nozzle 8 arranged to distribute a first fluid 8 comprises a base 36 and a cover 38.
  • the cover 38 comprising a primary fluid outlet 10 configured to direct the fluid towards the optical surface 4 of the optical device 6;
  • the base 36 and the cover 38 each having a contact line configured to come into complete contact with one another.
  • the contact lines are tangent to a common plane and have four rotational symmetries around an axis of rotation perpendicular to the common plane.
  • the base 36 and the cover 38 each have a perimeter having the same shape.
  • the front part 18 is located on the cover 38 of the primary nozzle 8.
  • the peripheries 40 of the base 36 and the cover 38 have the same shapes as the contact lines.
  • the contact lines are adjacent to the perimeters 40 of the base 36 and the cover 38.
  • the cover 38 and the base 36 are fixed using a welding strip 40.
  • the cover 38 or the base 36 includes a groove 42 configured to receive the welding strip 44.
  • the welding strip 44 and the groove 42 run along the contact line.
  • the cover 38 and the base 36 have a substantially square shape with rounded corners.
  • the cleaning device 2 can be oriented in the 4 possible orientations with an angle between the primary fluid inlet 46 and the fluid outlet 10, 20 which varies in steps of 90°. In other words, device 2 remains invariant by a rotation of a multiple of 90° around its center.
  • the cleaning device 2 can be oriented according to the 3 possible orientations among the 4 orientations authorized by the shape of the substantially square perimeter, except that corresponding to the direction of the fluid inlet.
  • the cover 38 is mounted on the base 36 so that the cover 38 can be rotated relative to the base 36.
  • the cleaning device 2 can be oriented at a plurality of angles between 0 and 360° between the fluid inlet 46 and the fluid outlet 48.
  • the device 2 remains invariant by rotation at any angle including 0 and 360°.
  • the base 36 comprises an inlet tube 50, in an elbow shape, comprising a first fluid inlet 46.
  • the cover 38 includes a second fluid inlet 48.
  • the first fluid 46 and second fluid 48 inlets are each configured to allow the connection of a fluid supply pipe (not shown), respectively to the primary nozzle x and the secondary nozzle x.
  • the inlet tube 50 opens onto a fluid opening 52 of divergent shape.
  • the base 36 includes at least one reinforcing rib 54 joining the inlet pipe 50.
  • Two reinforcing ribs 54 extend perpendicular to the direction of fluid circulation in the inlet pipe 50.
  • the cover 38 and the base 36 have a circumference 40 of circular shape.
  • the cover 38 and the base 36 are configured to allow a plurality of relative positions with a determined step between two successive positions, for example, at a step between 1 - 10°, more particularly at a step between 1 - 5 °.
  • the optical device 6 is a camera, in particular an infrared camera, preferably arranged to assist autonomous driving, advantageously arranged to detect the presence of drops of water on a window (not shown).
  • a plurality of these cameras can be located on the vehicle, in particular outside the vehicle.
  • the device 2 may include a secondary nozzle 14 in addition to the adjustable nozzle 8, or the primary nozzle 8 mentioned above.
  • the housing 16 of the primary nozzle 8 includes an O-ring 56 arranged to wedge the secondary nozzle 14 in the primary nozzle 8.
  • the jet 58 of fluid which comes from this fluid outlet 20 has a divergent shape, with a substantially triangular profile.
  • the secondary fluid outlet 20 is formed by facets 60 configured to generate the divergent jet 58.
  • facets 60 there are two plane facets 60 facing each other and diverging towards the outside, which give the jet 58 the divergent shape.
  • the cleaning device 2 comprises a fluid reservoir 62 located upstream of a distribution channel 22 of the secondary nozzle 14.
  • the cover 38 comprises a promontory 64 extending from a base 66 of the cover 38, and two ramps 68 extending from the promontory 64, namely an upper ramp 68 and a lower ramp 68, parallel to each other.
  • Each ramp 68 is inclined relative to the plane parallel to the promontory 64, in particular substantially inclined at 45° from the plane.
  • promontory 64 has an oblong shape.
  • the frontal part 18 comprises the summit 70 of the promontory 64 and a raised part 72 located on the upper ramp 68 and adjacent to the summit 70 of the promontory 64.
  • Primary exit 10 is located at summit 70 of promontory 64.
  • the periphery of the summit 70 of the promontory 64 substantially matches the periphery of the primary outlet 10. These two peripheries have an oblong shape.
  • the raised part 72 includes a bulge 73 which extends from the summit 70 of the promontory 64.
  • the cover 38 includes an outlet passage 76, arranged to receive the hollow head 30 of the secondary nozzle 14.
  • the outlet passage 76 is circular and located on a wall of the interior channel 12 of the primary nozzle 8.
  • the housing 16 of the primary nozzle 8 extends adjacent to the two ramps 68.
  • the housing 16 comprises at its entrance two wings 74 symmetrical with respect to a plane of symmetry (P) passing through the middle of the base 66 of the cover 38 of the primary fluid nozzle 8.
  • the base 32 of the secondary nozzle 14 further comprises a holding member 76 and at least one guide member 78, these members 76, 78 each being arranged to cooperate with the housing 16 of the primary nozzle 8.
  • the holding member 76 of the secondary nozzle 14 comprises two latching tabs 80 each arranged to cooperate with an orifice 82 of the wing 74 of the housing 16 of the primary nozzle 8.
  • Housing 16 includes an extension 84 located at the entrance 17 of housing 16.
  • the housing 16 further includes a lip 86 at the entrance 17 of the housing 16 facing the extension 84.
  • the guide member 78 of the secondary nozzle 14 comprises a keying device 88 arranged to cooperate with a groove 90 of the housing 16 of the primary nozzle 8 so as to form a sliding connection through an axis (A) along the housing 16.
  • the key 88 is a tab.
  • the holding member 76 of the secondary nozzle 14 comprises an upper projection 92 arranged to cooperate with the extension 84 of the housing 16 of the primary nozzle 8.
  • the holding member 76 of the secondary nozzle 14 comprises a lower projection 94 arranged to cooperate with the lip 86 of the housing 16 of the primary nozzle 8.
  • the upper 92 and lower 94 projections are symmetrical to each other with respect to the plane parallel to the plane of the base 66 of the cover 38 and passing through the middle of the housing 16.
  • 12A-12B, 13A-13B, 14A-14B, and 15 show a primary fluid nozzle 8 configured to be assembled with a support 96 of the optical device 6, as well as an assembly 98 comprising the device 2 of cleaning and the support 98, the device 2 and the support 98 being assembled together by cooperation of the respective guide members 100, 102 and retaining members 104, 106.
  • the primary nozzle 8 comprises a base 36 and a cover 38 each having a contact line configured to come into complete contact with one another, the contact lines being tangent to a common plane.
  • the support 96 is arranged to cooperate with the cover 38 located on a half-space higher than the common plane.
  • the maximum dimension of the primary nozzle 8 is larger than the maximum dimension of the support 96.
  • the primary nozzle 8 comprises the guide member 100 arranged to cooperate with the complementary guide member 102 of the support 96 of the optical device 6, so as to allow the assembly of the primary nozzle 8 with the support 96.
  • the primary nozzle 8 further comprises the retaining member 104 configured to cooperate by snapping with the complementary retaining member 106 of the support 96, so as to allow the snapping of the primary nozzle 8 on the support 96.
  • the invention makes it possible to simplify the mounting of the optical device 6 on the primary fluid nozzle 8, because the assembly does not require special tools, nor additional mechanical fastening elements such as screws (not shown).
  • the guide member 100 of the primary nozzle 8 comprises two external slides 108 symmetrical to each other with respect to the plane of symmetry (P), arranged to cooperate with the complementary guide member 102 formed on an internal wall 110 of the support 96.
  • the slide 108 comprises two parallel ramps 68 connected to each other by a crosspiece 112, so that the ramps 68 and the crosspiece 112 define a rail on which one of the internal walls 110 of the support 96 can slip.
  • the slide 108 may include two parallel ramps 68 connected to each other by two crosspieces 112 defining a rail on which one of the internal walls 110 of the support 96 can slide.
  • the cover 38 has two reinforcing ribs 54 which are located perpendicular to the crosspiece 112 of the slide 108.
  • the guide member x comprises, in addition to the slides 108, end-of-stroke partitions 114 closing the end of the rails forming the slides 108, the partitions 114 being arranged to cooperate with elements of stop 116 of support 96.
  • the retaining member 104 of the primary nozzle 8 comprises a holding protuberance 118 located parallel to the plane of symmetry (P).
  • the crosspiece 112 of the slide 108 is arranged to cooperate with a latch tab 120 for holding the complementary retaining member 106 of the support 96.
  • the support 96 comprises the complementary guide member 102 arranged to cooperate by snap-fastening with the guide member 100 of the primary fluid nozzle 8, so as to allow the assembly of the support 96 with the primary nozzle 8.
  • the support 96 further comprises the complementary retaining member 106 configured to cooperate with the retaining member 104 of the primary nozzle 8, so as to allow the primary nozzle 8 to snap into place on the support 96.
  • the complementary guide member 102 arranged to cooperate with two external slides 108 of the guide member 100, is formed on the internal wall 110 of the support 96.
  • the two external slides 108 are symmetrical to each other with respect to the plane of symmetry (P).
  • the guide member has a U shape.
  • the support 96 further comprises two stop elements 116 arranged to delimit the end of travel of the complementary guide member 102 of the support 96 on the guide member 100 of the primary nozzle 8.
  • the complementary retaining member 106 further comprises a latching tab 120 arranged to cooperate with a protuberance 118 for holding the retaining member 104 of the primary nozzle 8.
  • the stop elements 116 of support 96 are arranged to cooperate with end-of-stroke partitions 114 closing each end of the rail forming the slide 108 of the primary nozzle 8.
  • the complementary retaining member 106 comprises two latching tabs 120 arranged to cooperate with each crosspiece 112 of the two slides 108 of the primary nozzle 8.
  • the retaining latch tabs 120 are located on an internal wall 110 of the support 96.
  • the complementary retaining member (not shown) comprises two latching tabs 120 arranged to cooperate with two crosspieces 112 of the slide 108 of the primary nozzle 8.
  • a portion of the secondary nozzle 14 is arranged downstream of the primary outlet 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nozzles (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

The invention relates to a cleaning device (2) for cleaning the optical surface (4) of an optical device (6), in particular for a vehicle. The device (2) comprises a primary nozzle (8) arranged to dispense a first fluid. The primary nozzle (8) comprises a primary fluid outlet (10) arranged to project a primary jet of the first fluid towards the optical surface (4) of the optical device (6), and an inner channel (12) of the primary nozzle (8) which opens onto the primary outlet (10). The device (2) further comprises a secondary nozzle (14) arranged to dispense a second fluid. The secondary nozzle (14) comprises a secondary fluid outlet (20) arranged to project a secondary jet of the second fluid towards the optical surface (4) of the optical device (6), and a distribution channel (22) of the secondary nozzle (14) configured to convey the fluid to the secondary outlet (20). The primary (10) and secondary (20) outlets are configured such that the secondary outlet (20) is placed on the path travelled by the first fluid.

Description

Dispositif de nettoyage comprenant des buses Cleaning device including nozzles
La présente invention concerne un dispositif de nettoyage d’une surface optique d’un dispositif optique, notamment pour un véhicule. The present invention relates to a device for cleaning an optical surface of an optical device, in particular for a vehicle.
Le dispositif optique tel qu’un capteur optique est utilisé pour assister le conducteur d’un véhicule, notamment d’un véhicule automobile dans sa conduite. Le capteur optique, d’une manière générale, placé à l’extérieur du véhicule aux zones stratégiques pour améliorer la visibilité du conducteur, par exemple pour pallier les angles morts. Une pluralité des dispositifs optiques peuvent être placés à l’extérieur du véhicule dans le cadre d’une conduite autonome. Ces dispositifs, lorsqu’ils sont soumis à des expositions prolongées aux intempéries et à la poussière, se voient recouvrir d’une couche de saleté sur la surface optique. Il s’impose alors un nettoyage régulier de cette surface optique afin que le dispositif optique puisse fonctionner correctement. The optical device such as an optical sensor is used to assist the driver of a vehicle, in particular a motor vehicle, in his driving. The optical sensor, generally speaking, placed outside the vehicle in strategic areas to improve the driver's visibility, for example to compensate for blind spots. A plurality of the optical devices can be placed outside the vehicle in the context of autonomous driving. These devices, when subjected to prolonged exposure to weather and dust, become covered with a layer of dirt on the optical surface. It is then necessary to regularly clean this optical surface so that the optical device can function correctly.
Dans ce cadre, le dispositif de nettoyage comprenant une buse peut être utilisé pour nettoyer régulièrement la surface optique. In this context, the cleaning device comprising a nozzle can be used to regularly clean the optical surface.
L’invention a pour un objectif de réduire l’encombrement d’un dispositif de nettoyage comportant des buses de fluide.The invention aims to reduce the bulk of a cleaning device comprising fluid nozzles.
La présente invention a ainsi pour objet un dispositif de nettoyage de la surface optique d’un dispositif optique, notamment pour un véhicule, comprenant :
The present invention thus relates to a device for cleaning the optical surface of an optical device, in particular for a vehicle, comprising:
- une buse primaire agencée pour distribuer un premier fluide, et comportant :
- a primary nozzle arranged to distribute a first fluid, and comprising:
o une sortie primaire de fluide agencée pour projeter un jet primaire du premier fluide vers la surface optique du dispositif optique ; et
o a primary fluid outlet arranged to project a primary jet of the first fluid towards the optical surface of the optical device; And
o un canal intérieur de la buse primaire qui débouche sur la sortie primaire ;
o an interior channel of the primary nozzle which opens onto the primary outlet;
- une buse secondaire agencée pour distribuer un second fluide, et comportant :
  • une sortie secondaire de fluide agencée pour projeter un jet secondaire du second fluide vers la surface optique du dispositif optique ; et
  • un canal de distribution de la buse secondaire configuré pour convoyer le fluide jusqu’à la sortie secondaire,
les sorties primaire et secondaire étant configurées de sorte que la sortie secondaire soit placée sur le chemin parcouru par le premier fluide.- a secondary nozzle arranged to distribute a second fluid, and comprising:
  • a secondary fluid outlet arranged to project a secondary jet of the second fluid towards the optical surface of the optical device; And
  • a secondary nozzle distribution channel configured to convey the fluid to the secondary outlet,
the primary and secondary outlets being configured so that the secondary outlet is placed on the path traveled by the first fluid.
L’invention permet ainsi de réduire l’encombrement du dispositif de nettoyage grâce au fait que le chemin parcouru par le premier fluide est mutualisé entre la buse primaire et la buse secondaire.The invention thus makes it possible to reduce the bulk of the cleaning device thanks to the fact that the path traveled by the first fluid is shared between the primary nozzle and the secondary nozzle.
De cette manière, le dispositif selon l’invention présente une meilleure compacité qu’un dispositif de nettoyage classique comportant, par exemple une buse d’air et une buse d’eau avec deux canaux distincts de sorte qu’il y ait un lavage par eau d’un côté et le soufflage par air de l’autre. In this way, the device according to the invention has better compactness than a conventional cleaning device comprising, for example an air nozzle and a water nozzle with two distinct channels so that there is washing by water on one side and air blowing on the other.
Selon l’un des aspects de l’invention, le jet primaire entoure le jet secondaire au moins à la sortie du jet secondaire, au moins sur la moitié du pourtour du jet secondaire.According to one of the aspects of the invention, the primary jet surrounds the secondary jet at least at the outlet of the secondary jet, at least on half of the circumference of the secondary jet.
Selon l’un des aspects de l’invention, le jet primaire entoure le jet secondaire sur tout le pourtour du jet secondaire.According to one of the aspects of the invention, the primary jet surrounds the secondary jet all around the secondary jet.
On entend par le « jet » le flux de fluide qui est à la sortie de chaque buse. En d’autres termes, les « jets » primaire et secondaire se réfèrent respectivement au flux de fluide aux sorties primaire et secondaire.By “jet” we mean the flow of fluid which is at the outlet of each nozzle. In other words, the primary and secondary “jets” refer to the flow of fluid at the primary and secondary outlets, respectively.
Le terme « chemin » est employé pour la totalité du chemin de fluide, que ce soit à l’intérieur de la buse ou à l’extérieur de la buse. Le chemin qui est à l’extérieur de la buse forme le « jet » de fluide.The term “path” is used for the entire fluid path, whether inside the nozzle or outside the nozzle. The path outside the nozzle forms the “jet” of fluid.
On rappelle dans ce qui suit que les termes « amont » et « aval » se réfèrent à la direction d’écoulement du fluide dans le dispositif de nettoyage du dispositif optique. Le terme « amont » se réfère au côté du dispositif de nettoyage par lequel ce fluide est admis dans le dispositif, et le terme « aval » se réfère au côté du dispositif par lequel le fluide est projeté à l’extérieur de celui-ci, vers une surface d’un dispositif optique.We recall in the following that the terms “upstream” and “downstream” refer to the direction of flow of the fluid in the cleaning device of the optical device. The term "upstream" refers to the side of the cleaning device through which this fluid is admitted into the device, and the term "downstream" refers to the side of the device through which the fluid is projected outside it, towards a surface of an optical device.
Le chemin est « interne » lorsqu’il est à « l’intérieur » de la buse ou « en amont de » la sortie de la buse tandis que le chemin est « externe » ou est à « l’extérieur » lorsqu’il est « en aval de » la sortie de la buse.The path is "internal" when it is "inside" the nozzle or "upstream of" the nozzle outlet while the path is "external" or is "outside" when it is “downstream of” the nozzle outlet.
Selon l’un des aspects de l’invention, au moins une portion de la buse secondaire est disposée dans le canal intérieur de la buse primaire.According to one of the aspects of the invention, at least one portion of the secondary nozzle is arranged in the internal channel of the primary nozzle.
Selon l’un des aspects de l’invention, la sortie secondaire est dans un tronçon commun du canal intérieur de la buse primaire débouchant sur la sortie primaire. According to one of the aspects of the invention, the secondary outlet is in a common section of the internal channel of the primary nozzle opening onto the primary outlet.
Selon l’un des aspects de l’invention, la sortie secondaire est située en amont de la buse primaire. Cette caractéristique est avantageuse en ce que le dispositif de nettoyage est plus compacte.According to one of the aspects of the invention, the secondary outlet is located upstream of the primary nozzle. This feature is advantageous in that the cleaning device is more compact.
Selon un aspect, le second fluide est mélangé au premier fluide en amont de la buse primaire. On comprend que la sortie secondaire est dispose suffisamment en amont de la sortie primaire pour le premier fluide et le deuxième fluide puissent être mélangés de façon homogène. Cette caractéristique est avantageuse en ce qu’un mélange uniforme du premier liquide et du second liquide est projeté sur la surface optique, augmentant ainsi les performances de nettoyage de la surface optique. Grâce à cette caractéristique, le temps de lavage et la quantité de premier fluide de de second fluide sont réduits.According to one aspect, the second fluid is mixed with the first fluid upstream of the primary nozzle. It is understood that the secondary outlet is placed sufficiently upstream of the primary outlet so that the first fluid and the second fluid can be mixed homogeneously. This feature is advantageous in that a uniform mixture of the first liquid and the second liquid is sprayed onto the optical surface, thereby increasing the cleaning performance of the optical surface. Thanks to this characteristic, the washing time and the quantity of first fluid and second fluid are reduced.
Selon l’un des aspects de l’invention, la buse primaire comporte un logement agencé pour recevoir au moins partiellement la buse secondaire.According to one of the aspects of the invention, the primary nozzle comprises a housing arranged to at least partially receive the secondary nozzle.
Selon l’un des aspects de l’invention, la buse primaire comporte une partie frontale agencée pour faire face au dispositif optique, et le logement étant au moins partiellement formé par cette partie frontale et la sortie primaire est réalisée sur cette partie frontale. According to one of the aspects of the invention, the primary nozzle comprises a front part arranged to face the optical device, and the housing being at least partially formed by this front part and the primary outlet is produced on this front part.
Selon l’un des aspects de l’invention, le logement s’étend de manière adjacente à la rampe. According to one of the aspects of the invention, the housing extends adjacent to the ramp.
Selon l’un des aspects de l’invention, la partie frontale est située sur le couvercle de la buse primaire.According to one of the aspects of the invention, the front part is located on the cover of the primary nozzle.
Selon l’un des aspects de l’invention, la sortie primaire comporte une fente primaire.According to one of the aspects of the invention, the primary output comprises a primary slot.
Selon l’un des aspects de l’invention, la sortie secondaire comporte une fente secondaire.According to one of the aspects of the invention, the secondary outlet comprises a secondary slot.
Selon l’un des aspects de l’invention, la fente primaire a une forme oblongue.According to one of the aspects of the invention, the primary slot has an oblong shape.
Selon l’un des aspects de l’invention, la fente secondaire a une forme de lune croissante.According to one of the aspects of the invention, the secondary slot has the shape of a growing moon.
Selon l’un des aspects de l’invention, la fente primaire est plus large que la fente secondaire.According to one of the aspects of the invention, the primary slot is wider than the secondary slot.
Selon l’un des aspects de l’invention, la fente secondaire est en regard par rapport à la fente primaire.According to one of the aspects of the invention, the secondary slot faces the primary slot.
Selon l’un des aspects de l’invention, la buse secondaire est munie d’une tête creuse à l’extrémité de laquelle est réalisée la sortie secondaire et d’une base. According to one of the aspects of the invention, the secondary nozzle is provided with a hollow head at the end of which the secondary outlet is produced and with a base.
Selon l’un des aspects de l’invention, la buse secondaire comporte un corps cylindrique auquel se raccorde la tête creuse.According to one of the aspects of the invention, the secondary nozzle comprises a cylindrical body to which the hollow head is connected.
Selon l’un des aspects de l’invention, le logement de la buse primaire a une forme cylindrique pouvant recevoir la buse secondaire.According to one of the aspects of the invention, the housing of the primary nozzle has a cylindrical shape capable of receiving the secondary nozzle.
Selon l’un des aspects de l’invention, la tête creuse et/ou le corps cylindrique de la buse secondaire sont au moins partiellement logés dans le logement de la buse primaire. According to one of the aspects of the invention, the hollow head and/or the cylindrical body of the secondary nozzle are at least partially housed in the housing of the primary nozzle.
Selon l’un des aspects de l’invention, la longueur du tronçon commun est, de préférence cinq fois, plus particulièrement deux fois plus petite que le diamètre de la tête creuse de la buse secondaire.According to one of the aspects of the invention, the length of the common section is preferably five times, more particularly two times smaller than the diameter of the hollow head of the secondary nozzle.
Selon l’un des aspects de l’invention, au moins une portion de la buse secondaire est disposée en aval de la sortie primaire.According to one of the aspects of the invention, at least one portion of the secondary nozzle is arranged downstream of the primary outlet.
Selon l’un des aspects de l’invention, le dispositif de nettoyage comporte un réservoir de fluide situé en amont d’un canal intérieur de la buse primaire ou d’un canal de distribution de la buse secondaire.According to one of the aspects of the invention, the cleaning device comprises a fluid reservoir located upstream of an internal channel of the primary nozzle or of a distribution channel of the secondary nozzle.
BUSE ORIENTATION VARIABLENOZZLE ORIENTATION VARIABLE
L’invention a encore pour objet un dispositif de nettoyage d’une surface optique d’un dispositif optique, notamment pour un véhicule, comprenant :
  • une buse agencée pour distribuer un fluide, et comportant une embase et un couvercle ;
  • le couvercle comportant une sortie de fluide configurée pour orienter le fluide vers la surface optique du dispositif optique ;
  • l’embase et le couvercle présentant chacun une ligne de contact configurée pour venir en contact totalement l’une à l’autre, les lignes de contact étant tangentes à un plan commun et présentant au moins une symétrie de rotation autour d’un axe de rotation perpendiculaire au plan commun.
The invention also relates to a device for cleaning an optical surface of an optical device, in particular for a vehicle, comprising:
  • a nozzle arranged to distribute a fluid, and comprising a base and a cover;
  • the cover having a fluid outlet configured to direct the fluid towards the optical surface of the optical device;
  • the base and the cover each having a contact line configured to come into complete contact with one another, the contact lines being tangent to a common plane and having at least one rotational symmetry around an axis of rotation perpendicular to the common plane.
Grâce à la symétrie de rotation autour d’un axe de rotation perpendiculaire au plan commun, il est possible de d’assembler le couvercle avec l’embase suivant différentes orientations relatives possibles. Ainsi, sur la ligne de production du dispositif de nettoyage pour une gamme de capteurs donnée, il est possible de choisir une orientation pour l’assemblage parmi les différentes orientations d’assemblage possibles. Pour une autre gamme de capteurs donnée, il est possible de choisir une autre orientation relative permise par les symétries de rotation. Thanks to the rotational symmetry around an axis of rotation perpendicular to the common plane, it is possible to assemble the cover with the base in different possible relative orientations. Thus, on the production line of the cleaning device for a given range of sensors, it is possible to choose an orientation for the assembly among the different possible assembly orientations. For another given range of sensors, it is possible to choose another relative orientation allowed by the rotational symmetries.
Ainsi, avec une même embase et un même couvercle, il est possible de former des dispositifs de nettoyage avec des orientations différentes entre la sortie de fluide et l’embase.Thus, with the same base and the same cover, it is possible to form cleaning devices with different orientations between the fluid outlet and the base.
Ceci est particulièrement avantageux lorsque l’embase comprend une entrée de fluide dont l’orientation est imposée par l’environnement du capteur.This is particularly advantageous when the base includes a fluid inlet whose orientation is imposed by the environment of the sensor.
Par exemple, il peut être nécessaire d’avoir un angle de 90° entre l’entrée de fluide et la sortie de fluide pour certains capteurs, et un angle de 0° ou 270° entre l’entrée et la sortie pour d’autres capteurs. For example, it may be necessary to have a 90° angle between fluid inlet and fluid outlet for some sensors, and a 0° or 270° angle between inlet and outlet for others. sensors.
Lorsque plusieurs capteurs sont nécessaires sur un véhicule, mais avec des orientations variables, il est possible de réaliser ces différents capteurs à partir des mêmes couvercles et embases qui sont assemblés suivant des orientations différentes.When several sensors are necessary on a vehicle, but with variable orientations, it is possible to produce these different sensors from the same covers and bases which are assembled in different orientations.
Parmi toutes les orientations permises par le couvercle et l’embase, il est choisi l’orientation qui permet d’orienter le fluide vers la surface optique du dispositif optique. Among all the orientations permitted by the cover and the base, the orientation is chosen which makes it possible to direct the fluid towards the optical surface of the optical device.
De cette manière, l’invention permet de choisir une orientation du dispositif de nettoyage de sorte que cette orientation soit adaptée à un agencement et à une géométrie de dispositifs optiques d’un véhicule, et ce sans changer la conception initiale du dispositif de nettoyage. In this way, the invention makes it possible to choose an orientation of the cleaning device so that this orientation is adapted to an arrangement and a geometry of optical devices of a vehicle, without changing the initial design of the cleaning device.
Ainsi, l’invention permet de réduire le coût de fabrication et d’assemblage du dispositif.Thus, the invention makes it possible to reduce the cost of manufacturing and assembling the device.
L’invention peut aussi présenter, l’une des caractéristiques suivantes, seule ou en combinaison avec une ou plusieurs autres caractéristiques ci-dessous.The invention may also have one of the following characteristics, alone or in combination with one or more other characteristics below.
Selon l’un des aspects de l’invention, l’embase et le couvercle présentent chacun un pourtour ayant la même forme.According to one of the aspects of the invention, the base and the cover each have a perimeter having the same shape.
Selon l’un des aspects de l’invention, les pourtours de l’embase et du couvercle ont les mêmes formes que les lignes de contact.According to one of the aspects of the invention, the perimeters of the base and the cover have the same shapes as the contact lines.
Selon l’un des aspects de l’invention, les lignes de contact sont adjacentes aux pourtours de l’embase et du couvercle.According to one of the aspects of the invention, the contact lines are adjacent to the perimeters of the base and the cover.
Selon l’un des aspects de l’invention, le couvercle est fixé sur l’embase.According to one of the aspects of the invention, the cover is fixed on the base.
Selon l’un des aspects de l’invention, le couvercle et l’embase sont fixés à l’aide d’une bande de soudage.According to one aspect of the invention, the cover and the base are fixed using a welding strip.
Selon l’un des aspects de l’invention, le couvercle ou l’embase comprend une rainure configurée pour recevoir la bande de soudage.According to one of the aspects of the invention, the cover or the base comprises a groove configured to receive the welding strip.
Selon l’un des aspects de l’invention, la bande de soudage et/ou la rainure longent la ligne de contact.According to one aspect of the invention, the welding strip and/or the groove run along the contact line.
Selon l’un des aspects de l’invention, l’axe de rotation présente une symétrie d’ordre n, à savoir 2π/n (rad), avec n entier positif supérieur ou égal à 2.According to one of the aspects of the invention, the axis of rotation has a symmetry of order n, namely 2π/n (rad), with n positive integer greater than or equal to 2.
Selon l’un des aspects de l’invention, le couvercle et l’embase ont un pourtour de forme sensiblement carrée avec des coins arrondis.According to one of the aspects of the invention, the cover and the base have a substantially square shape with rounded corners.
De cette manière, le dispositif de nettoyage peut être orienté selon les 4 orientations possibles avec un angle entre l’entrée de fluide et la sortie de fluide qui varie par pas de 90°. En d’autres termes, le dispositif demeure invariant par une rotation d’un multiple de 90° autour de son centre. In this way, the cleaning device can be oriented in 4 possible orientations with an angle between the fluid inlet and the fluid outlet which varies in steps of 90°. In other words, the device remains invariant by a rotation of a multiple of 90° around its center.
De façon alternatif, le dispositif de nettoyage peut être orienté selon les 3 orientations possibles parmi les 4 orientations autorisées par la forme du pourtour sensiblement carrée, sauf celle correspondant à la direction de l’arrivée de fluide.Alternatively, the cleaning device can be oriented according to the 3 possible orientations among the 4 orientations authorized by the shape of the substantially square perimeter, except that corresponding to the direction of the fluid inlet.
Selon l’un des aspects de l’invention, le couvercle est monté sur l’embase de sorte que le couvercle puisse être mis en rotation par rapport à l’embase.According to one of the aspects of the invention, the cover is mounted on the base so that the cover can be rotated relative to the base.
Ainsi, le dispositif de nettoyage peut être orienté à une pluralité d’angles compris entre 0 et 360° entre l’entrée de fluide et la sortie de fluide. Le dispositif demeure invariant par une rotation à n’importe quel angle compris 0 et 360°.Thus, the cleaning device can be oriented at a plurality of angles between 0 and 360° between the fluid inlet and the fluid outlet. The device remains invariant by rotation at any angle between 0 and 360°.
Selon l’un des aspects de l’invention, le couvercle et l’embase ont un pourtour de forme circulaire.According to one of the aspects of the invention, the cover and the base have a circular shape.
Selon l’un des aspects de l’invention, le couvercle et l’embase sont configurés pour permettre à une pluralité de positions relatives avec un pas déterminé entre deux positions successives, par exemple, à un pas compris entre 1 - 10°, plus particulièrement à un pas compris entre 1 – 5°.According to one of the aspects of the invention, the cover and the base are configured to allow a plurality of relative positions with a determined step between two successive positions, for example, at a step of between 1 - 10°, more particularly at a pitch between 1 – 5°.
Selon l’un des aspects de l’invention, le dispositif optique est une caméra, notamment une caméra infrarouge, préférentiellement agencée pour aider à la conduite autonome, avantageusement agencé pour détecter la présence de gouttes d’eau sur vitre.According to one of the aspects of the invention, the optical device is a camera, in particular an infrared camera, preferably arranged to assist autonomous driving, advantageously arranged to detect the presence of drops of water on glass.
Une pluralité de ces caméras, de préférence au moins dix caméras, peuvent être situées sur le véhicule, notamment à l’extérieur du véhicule.A plurality of these cameras, preferably at least ten cameras, can be located on the vehicle, in particular outside the vehicle.
L’invention a encore pour objet un procédé de fabrication d’un dispositif de nettoyage de la surface optique d’un dispositif optique, notamment pour un véhicule, le dispositif comportant une buse agencée pour distribuer un fluide, et le procédé comportant les étapes suivantes :
The invention also relates to a method of manufacturing a device for cleaning the optical surface of an optical device, in particular for a vehicle, the device comprising a nozzle arranged to distribute a fluid, and the method comprising the following steps :
- fournir une embase ;
- provide a base;
- fournir un couvercle comportant une sortie de fluide configurée pour orienter le fluide vers la surface optique du dispositif optique ;
- provide a cover comprising a fluid outlet configured to direct the fluid towards the optical surface of the optical device;
- munir l’embase et le couvercle chacun d’une ligne de contact configurée pour venir en contact totalement l’une à l’autre, les lignes de contact étant tangentes à un plan commun, et présentant au moins une symétrie de rotation autour d’un axe de rotation perpendiculaire au plan commun ; et
- provide the base and the cover each with a contact line configured to come into complete contact with one another, the contact lines being tangent to a common plane, and having at least one rotational symmetry around 'an axis of rotation perpendicular to the common plane; And
- assembler l’embase et le couvercle suivant une position parmi une pluralité de positions relatives autorisées par la symétrie de rotation.- assemble the base and the cover according to a position among a plurality of relative positions authorized by the rotational symmetry.
Selon l’un des aspects de l’invention, le procédé comporte une étape de soudage par ultrason de l’embase sur le couvercle.According to one of the aspects of the invention, the method comprises a step of ultrasonic welding of the base on the cover.
Dans ce qui précède, la buse est une buse orientable. L’invention peut concerner le dispositif avec une buse primaire et une buse secondaire. On entend par la « buse primaire » la buse orientable décrite plus haut. In the above, the nozzle is an adjustable nozzle. The invention may relate to the device with a primary nozzle and a secondary nozzle. By the “primary nozzle” we mean the adjustable nozzle described above.
BUSENOZZLE
L’invention a encore pour objet un dispositif de nettoyage d’une surface optique d’un dispositif optique, notamment pour un véhicule, comprenant la buse de fluide configurée pour être assemblée avec un support du dispositif optique, la buse comportant :
The invention also relates to a device for cleaning an optical surface of an optical device, in particular for a vehicle, comprising the fluid nozzle configured to be assembled with a support of the optical device, the nozzle comprising:
- au moins un organe de guidage agencé pour coopérer avec au moins un organe de guidage complémentaire d’un support du dispositif optique, de sorte à permettre l’assemblage de la buse avec le support ; et
- at least one guide member arranged to cooperate with at least one guide member complementary to a support of the optical device, so as to allow the assembly of the nozzle with the support; And
- au moins un organe de retenue configuré pour coopérer par encliquetage avec au moins un organe de retenue complémentaire du support, de sorte à permettre l’encliquetage de la buse sur le support.- at least one retaining member configured to cooperate by snapping with at least one complementary retaining member of the support, so as to allow the nozzle to snap into place on the support.
Grâce à l’encliquetage de la buse sur le support du dispositif optique, l’invention permet de simplifier le montage du dispositif optique sur la buse de fluide, car le montage ne nécessite pas d’outils particuliers, ni d’éléments de fixation mécanique supplémentaires tels que des vis. Thanks to the snapping of the nozzle onto the support of the optical device, the invention makes it possible to simplify the mounting of the optical device on the fluid nozzle, because assembly does not require special tools or mechanical fixing elements. additional items such as screws.
De cette manière, le montage peut se faire de manière précise et rapide.In this way, assembly can be done precisely and quickly.
Selon l’un des aspects de l’invention, l’organe de guidage comporte au moins une glissière agencée pour coopérer avec l’organe de guidage complémentaire.According to one of the aspects of the invention, the guide member comprises at least one slide arranged to cooperate with the complementary guide member.
Selon l’un des aspects de l’invention, l’organe de guidage comporte deux glissières qui sont en regard l’une de l’autre sur la buse de fluide.According to one of the aspects of the invention, the guide member comprises two slides which face each other on the fluid nozzle.
Selon l’un des aspects de l’invention, les deux glissières sont symétriques entre elles par rapport à un plan de symétrie (P) passant par le milieu du socle du couvercle de la buse de fluide.According to one of the aspects of the invention, the two slides are symmetrical to each other with respect to a plane of symmetry (P) passing through the middle of the base of the cover of the fluid nozzle.
Selon l’un des aspects de l’invention, au moins une glissière comporte au moins deux rampes parallèles et reliées entre elles par au moins une traverse, de sorte que les rampes et la traverse définissent un rail sur lequel l’une des parois du support puisse glisser. According to one of the aspects of the invention, at least one slide comprises at least two parallel ramps and connected together by at least one crosspiece, so that the ramps and the crosspiece define a rail on which one of the walls of the support may slip.
Selon l’un des aspects de l’invention, la glissière comporte au moins deux traverses reliant les rampes.According to one of the aspects of the invention, the slide comprises at least two crosspieces connecting the ramps.
Selon l’un des aspects de l’invention, l’organe de guidage comprend, outre la glissière, au moins une cloison de fin de course fermant l’extrémité du rail formant la glissière, la cloison étant agencée pour coopérer avec un élément de butée du support.According to one of the aspects of the invention, the guide member comprises, in addition to the slide, at least one end-of-travel partition closing the end of the rail forming the slide, the partition being arranged to cooperate with an element of support stop.
Selon l’un des aspects de l’invention, l’organe de retenue comprend une protubérance de maintien. According to one of the aspects of the invention, the retaining member comprises a retaining protuberance.
Selon l’un des aspects de l’invention, la protubérance de maintien est située parallèlement au plan de symétrie (P). According to one of the aspects of the invention, the holding protuberance is located parallel to the plane of symmetry (P).
En variante, la traverse de la glissière est agencée pour coopérer avec une patte d’encliquetage de maintien de l’organe de retenue complémentaire du support. Alternatively, the crosspiece of the slide is arranged to cooperate with a latch tab for holding the complementary retaining member of the support.
Selon l’un des aspects de l’invention, l’organe de guidage de la buse comporte une glissière externe agencée pour coopérer avec l’organe de guidage complémentaire formé sur une paroi interne du support.According to one of the aspects of the invention, the nozzle guide member comprises an external slide arranged to cooperate with the complementary guide member formed on an internal wall of the support.
Dans ce qui précède, la buse est la buse primaire ou la buse orientable. L’invention peut concerner le dispositif avec la buse primaire et la buse secondaire. In the above, the nozzle is the primary nozzle or the adjustable nozzle. The invention may relate to the device with the primary nozzle and the secondary nozzle.
SUPPORT SUPPORT
L’invention a encore pour objet, un support de dispositif optique, notamment pour un véhicule, le support étant configuré pour être assemblé avec la buse de fluide du dispositif selon l’invention, le support comportant :
  • au moins un organe de guidage complémentaire agencé pour coopérer avec au moins un organe de guidage de la buse de fluide, de sorte à permettre l’assemblage du support avec la buse ; et
  • au moins un organe de retenue complémentaire configuré pour coopérer par encliquetage avec au moins un organe de retenue de la buse, de sorte à permettre l’encliquetage de la buse sur le support.
The invention also relates to an optical device support, in particular for a vehicle, the support being configured to be assembled with the fluid nozzle of the device according to the invention, the support comprising:
  • at least one complementary guide member arranged to cooperate with at least one guide member of the fluid nozzle, so as to allow the assembly of the support with the nozzle; And
  • at least one complementary retaining member configured to cooperate by snapping with at least one retaining member of the nozzle, so as to allow the nozzle to snap into place on the support.
Selon l’un des aspects de l’invention, l’organe de guidage complémentaire est agencé pour coopérer avec au moins une glissière de l’organe de guidage.According to one of the aspects of the invention, the complementary guide member is arranged to cooperate with at least one slide of the guide member.
Selon l’un des aspects de l’invention, l’organe de guidage complémentaire, agencé pour coopérer avec une glissière de l’organe de guidage, est formé sur une paroi du support. According to one of the aspects of the invention, the complementary guide member, arranged to cooperate with a slide of the guide member, is formed on a wall of the support.
Selon l’un des aspects de l’invention, l’organe de guidage complémentaire, agencé pour coopérer avec une glissière externe de l’organe de guidage, est formé sur la paroi interne du support. According to one of the aspects of the invention, the complementary guide member, arranged to cooperate with an external slide of the guide member, is formed on the internal wall of the support.
Selon l’un des aspects de l’invention, l’organe de guidage complémentaire a une forme en U.According to one of the aspects of the invention, the complementary guide member has a U shape.
Selon l’un des aspects de l’invention, le support comporte en outre :
  • au moins un élément de butée agencé pour délimiter la fin de course de l’organe de guidage complémentaire du support sur l’organe de guidage de la buse.
According to one of the aspects of the invention, the support further comprises:
  • at least one stop element arranged to delimit the end of travel of the complementary guide member of the support on the guide member of the nozzle.
Selon l’un des aspects de l’invention, l’élément de butée de support est agencé pour coopérer avec une cloison de fin de course fermant l’extrémité d’un rail formant la glissière de la buse. According to one of the aspects of the invention, the support stop element is arranged to cooperate with an end-of-stroke partition closing the end of a rail forming the nozzle slide.
En variante, l’organe de retenue complémentaire comporte en outre au moins une patte d’encliquetage agencée pour coopérer avec une protubérance de maintien de l’organe de retenue de la buse. Alternatively, the complementary retaining member further comprises at least one latching tab arranged to cooperate with a retaining protuberance of the retaining member of the nozzle.
Selon l’un des aspects de l’invention, l’organe de retenue complémentaire comporte au moins une patte d’encliquetage agencée pour coopérer avec une traverse de la glissière de la buse. According to one of the aspects of the invention, the complementary retaining member comprises at least one latching tab arranged to cooperate with a crosspiece of the nozzle slide.
Selon l’un des aspects de l’invention, l’organe de retenue complémentaire comporte au moins deux pattes d’encliquetage agencées pour coopérer avec au moins deux traverses de la glissière de la buse. According to one of the aspects of the invention, the complementary retaining member comprises at least two latching tabs arranged to cooperate with at least two crosspieces of the nozzle slide.
Selon l’un des aspects de l’invention, la patte d’encliquetage est située sur une paroi interne du support. According to one of the aspects of the invention, the latching tab is located on an internal wall of the support.
Toutes les caractéristiques correspondant à la buse et au support s’appliquent également au cas où le dispositif comporte une buse secondaire outre la buse susmentionnée, pouvant être considérée comme une buse primaire ou une buse orientable décrite plus haut.All the characteristics corresponding to the nozzle and the support also apply to the case where the device includes a secondary nozzle in addition to the aforementioned nozzle, which can be considered as a primary nozzle or an adjustable nozzle described above.
ASSEMBLAGEASSEMBLY
L’invention a encore pour objet, un assemblage comportant un dispositif de nettoyage selon l’invention et un support selon l’invention, le dispositif et le support étant assemblés ensemble par coopération des organes de guidage et de retenue respectifs.The invention also relates to an assembly comprising a cleaning device according to the invention and a support according to the invention, the device and the support being assembled together by cooperation of the respective guide and retaining members.
Selon l’un des aspects de l’invention, la buse du dispositif de nettoyage comporte une embase et un couvercle présentant chacun une ligne de contact configurée pour venir en contact totalement l’une à l’autre, les lignes de contact étant tangentes à un plan commun et présentant au moins une symétrie de rotation autour d’un axe de rotation perpendiculaire au plan commun, et le support étant agencé à coopérer avec le couvercle situé sur un des demi-espaces, à savoir un demi-espace supérieur ou un demi-espace inférieur, situés de part et d’autre par rapport au plan commun.According to one of the aspects of the invention, the nozzle of the cleaning device comprises a base and a cover each having a contact line configured to come into complete contact with one another, the contact lines being tangent to a common plane and having at least one rotational symmetry around an axis of rotation perpendicular to the common plane, and the support being arranged to cooperate with the cover located on one of the half-spaces, namely an upper half-space or a lower half-space, located on either side of the common plane.
Selon l’un des aspects de l’invention, la dimension maximale de la buse est plus grande que la dimension maximale du support.According to one of the aspects of the invention, the maximum dimension of the nozzle is larger than the maximum dimension of the support.
Selon l’un des aspects de l’invention, le support est un élément en retrait de la sortie de fluide. On entend par cette caractéristique le fait que le support n’enveloppe pas la sortie de fluide. Autrement dit, la sortie de fluide est en dehors du support.According to one of the aspects of the invention, the support is an element set back from the fluid outlet. By this characteristic we mean the fact that the support does not surround the fluid outlet. In other words, the fluid outlet is outside the support.
CARACTERISTIQUES GEOMETRIQUES GEOMETRIC FEATURES
Selon l’un des aspects de l’invention, le couvercle comporte :
  • un promontoire s’étendant depuis un socle du couvercle ; et
  • l’au moins une rampe s’étendant du promontoire.
According to one of the aspects of the invention, the cover comprises:
  • a promontory extending from a base of the lid; And
  • the at least one ramp extending from the promontory.
Selon l’un des aspects de l’invention, le couvercle comporte les deux rampes, par exemple une rampe supérieure et une rampe inférieure, parallèles entre elles s’étendant du promontoire.According to one of the aspects of the invention, the cover comprises two ramps, for example an upper ramp and a lower ramp, parallel to each other extending from the promontory.
Selon l’un des aspects de l’invention, chaque rampe est inclinée par rapport au plan parallèle au promontoire, notamment sensiblement inclinée à 45° du plan.According to one of the aspects of the invention, each ramp is inclined relative to the plane parallel to the promontory, in particular substantially inclined at 45° from the plane.
Selon l’un des aspects de l’invention, le pourtour du promontoire présente une forme oblongue. According to one of the aspects of the invention, the periphery of the promontory has an oblong shape.
Selon l’un des aspects de l’invention, la partie frontale comprend en outre :
  • le sommet du promontoire ; et
  • une partie surélevée située sur la rampe supérieure et adjacente au sommet du promontoire.
According to one of the aspects of the invention, the front part further comprises:
  • the top of the promontory; And
  • a raised part located on the upper ramp and adjacent to the top of the promontory.
Selon l’un des aspects de l’invention, la sortie primaire est située au sommet du promontoire.According to one aspect of the invention, the primary exit is located at the top of the promontory.
Selon l’un des aspects de l’invention, le pourtour du sommet du promontoire épouse sensiblement le pourtour de la sortie primaire, ces deux pourtours ayant une forme oblongue.According to one of the aspects of the invention, the periphery of the summit of the promontory substantially matches the periphery of the primary outlet, these two peripheries having an oblong shape.
Selon l’un des aspects de l’invention, la partie surélevée comporte un renflement qui se prolonge depuis le sommet du promontoire.According to one aspect of the invention, the raised part includes a bulge which extends from the top of the promontory.
Selon l’un des aspects de l’invention, l’embase comprend une tubulure d’entrée, de préférence en forme coudée, comportant une entrée de fluide, notamment une entrée de premier fluide. Cette tubulure d’entrée est agencée pour être connectée à un tuyau, notamment un tuyau souple, d’amenée de fluide.According to one of the aspects of the invention, the base comprises an inlet tube, preferably in an elbow shape, comprising a fluid inlet, in particular a first fluid inlet. This inlet pipe is arranged to be connected to a pipe, in particular a flexible pipe, for supplying fluid.
Selon l’un des aspects de l’invention, le couvercle comprend une entrée de second fluide.According to one of the aspects of the invention, the cover comprises a second fluid inlet.
Selon l’un des aspects de l’invention, les entrées de premier fluide et second fluide sont configurées chacune pour permettre la connexion d’un tuyau d’amenée de fluide, respectivement vers la buse primaire et la buse secondaire.According to one aspect of the invention, the first fluid and second fluid inlets are each configured to allow the connection of a fluid supply pipe, respectively to the primary nozzle and the secondary nozzle.
Selon l’un des aspects de l’invention, la tubulure d’entrée débouche sur une ouverture de fluide de forme divergente. According to one of the aspects of the invention, the inlet pipe opens onto a fluid opening of divergent shape.
Selon l’un des aspects de l’invention, l’embase comporte au moins une nervure de renfort joignant à la tubulure d’entrée.According to one of the aspects of the invention, the base comprises at least one reinforcing rib joining the inlet pipe.
Selon l’un des aspects de l’invention, au moins deux nervures de renfort s’étendent perpendiculairement par rapport au sens de circulation de fluide dans la tubulure d’entrée. According to one of the aspects of the invention, at least two reinforcing ribs extend perpendicular to the direction of fluid circulation in the inlet tubing.
Selon l’un des aspects de l’invention, le couvercle comporte au moins une nervure de renfort.According to one of the aspects of the invention, the cover comprises at least one reinforcing rib.
Selon l’un des aspects de l’invention, la nervure de renfort du couvercle est située perpendiculairement à la traverse de la glissière.According to one of the aspects of the invention, the reinforcing rib of the cover is located perpendicular to the crosspiece of the slide.
Selon l’un des aspects de l’invention, le couvercle comporte un passage de sortie agencé pour recevoir la tête creuse de la buse secondaire. According to one of the aspects of the invention, the cover comprises an outlet passage arranged to receive the hollow head of the secondary nozzle.
Selon l’un des aspects de l’invention, le passage de sortie, notamment circulaire, est situé sur une paroi du canal intérieur de la buse primaire. According to one of the aspects of the invention, the outlet passage, in particular circular, is located on a wall of the internal channel of the primary nozzle.
Selon l’un des aspects de l’invention, le logement comporte à son entrée au moins une aile, de préférence deux ailes symétriques par rapport au plan de symétrie (P).According to one of the aspects of the invention, the housing comprises at its entrance at least one wing, preferably two wings symmetrical with respect to the plane of symmetry (P).
Ainsi, les contraintes sont réparties de manière optimale.Thus, the constraints are distributed optimally.
Selon l’un des aspects de l’invention, l’aile comporte un orifice agencé pour coopérer avec une patte d’encliquetage de l’organe de maintien de la buse secondaire.According to one of the aspects of the invention, the wing comprises an orifice arranged to cooperate with a latching tab of the member holding the secondary nozzle.
Selon l’un des aspects de l’invention, le logement comporte en outre une extension située à l’entrée du logement.According to one of the aspects of the invention, the housing further comprises an extension located at the entrance to the housing.
Selon l’un des aspects de l’invention, le logement comporte une lèvre à l’entrée du logement en regard de l’extension.According to one of the aspects of the invention, the housing comprises a lip at the entrance to the housing facing the extension.
Selon l’un des aspects de l’invention, la base de la buse secondaire comporte en outre au moins un organe de maintien et au moins un organe de guidage, ces organes étant agencés chacun pour coopérer avec le logement de la buse primaire.According to one of the aspects of the invention, the base of the secondary nozzle further comprises at least one holding member and at least one guiding member, these members each being arranged to cooperate with the housing of the primary nozzle.
Selon l’un des aspects de l’invention, l’organe de guidage de la buse secondaire comporte un détrompeur agencé pour coopérer avec une rainure du logement de la buse primaire de sorte à former une liaison glissière à travers un axe (A) le long du logement.According to one of the aspects of the invention, the guide member of the secondary nozzle comprises a keying device arranged to cooperate with a groove in the housing of the primary nozzle so as to form a sliding connection through an axis (A) the along the length of the accommodation.
Selon l’un des aspects de l’invention, le détrompeur est une languette.According to one of the aspects of the invention, the keying device is a tab.
Selon l’un des aspects de l’invention, l’organe de maintien de la buse secondaire comporte au moins une patte d’encliquetage agencée pour coopérer avec l’orifice de l’aile du logement de la buse primaire.According to one of the aspects of the invention, the member for holding the secondary nozzle comprises at least one latching tab arranged to cooperate with the orifice in the wing of the housing of the primary nozzle.
Selon l’un des aspects de l’invention, l’organe de maintien de la buse secondaire comporte une saillie supérieure agencée pour coopérer avec l’extension du logement de la buse primaire.According to one of the aspects of the invention, the member for holding the secondary nozzle comprises an upper projection arranged to cooperate with the extension of the housing of the primary nozzle.
Selon l’un des aspects de l’invention, l’organe de maintien de la buse secondaire comporte une saillie inférieure agencée pour coopérer avec la lèvre du logement de la buse primaire.According to one of the aspects of the invention, the member for holding the secondary nozzle comprises a lower projection arranged to cooperate with the lip of the housing of the primary nozzle.
Selon l’un des aspects de l’invention, les saillies supérieure et inférieure sont symétriques entre elles par rapport au plan parallèle au plan du socle du couvercle et passant par le milieu du logement.According to one of the aspects of the invention, the upper and lower projections are symmetrical to each other with respect to the plane parallel to the plane of the base of the cover and passing through the middle of the housing.
Ainsi, les contraintes sont réparties de manière optimale.Thus, the constraints are distributed optimally.
Selon l’un des aspects de l’invention, le logement de la buse primaire comporte un joint torique agencé pour caler la buse secondaire dans la buse primaire.According to one of the aspects of the invention, the housing of the primary nozzle comprises an O-ring arranged to wedge the secondary nozzle in the primary nozzle.
FORME DIVERGENTE DE LA SORTIE DE FLUIDEDIVERGENT SHAPE OF FLUID OUTLET
Selon l’un des aspects de l’invention, la sortie primaire de fluide ou la sortie secondaire de fluide présente une forme divergente. According to one of the aspects of the invention, the primary fluid outlet or the secondary fluid outlet has a divergent shape.
Ainsi, le jet de fluide qui est issu de cette sortie de fluide présente une forme divergente, par exemple avec un profil sensiblement triangulaire.Thus, the jet of fluid which comes from this fluid outlet has a divergent shape, for example with a substantially triangular profile.
Selon l’un des aspects de l’invention, la sortie primaire de fluide ou la sortie secondaire de fluide est formée par des facettes configurées pour générer le jet divergent. According to one of the aspects of the invention, the primary fluid outlet or the secondary fluid outlet is formed by facets configured to generate the divergent jet.
Parmi ces facettes, figurent deux facettes planes en regard et divergente en direction de l’extérieur, qui confèrent au jet la forme divergente.Among these facets, there are two plane facets facing each other and diverging towards the outside, which give the jet the divergent shape.
Selon l’un des aspects de l’invention, le couvercle ou l’embase est d’un seul tenant.According to one of the aspects of the invention, the cover or the base is in one piece.
Selon l’un des aspects de l’invention, le couvercle et/ou l’embase sont en métal ou en plastique.According to one of the aspects of the invention, the cover and/or the base are made of metal or plastic.
Selon l’un des aspects de l’invention, le couvercle ou l’embase est issu de moulage ou d’usinage.According to one of the aspects of the invention, the cover or the base is produced by molding or machining.
Selon l’un des aspects de l’invention, le fluide est de l’air seul, ou un liquide seul, ou un mélange de liquide et d’air. Ce mélange de liquide et d’air peut former une mousse projetée sur la surface optique à nettoyer.According to one of the aspects of the invention, the fluid is air alone, or a liquid alone, or a mixture of liquid and air. This mixture of liquid and air can form a foam projected onto the optical surface to be cleaned.
Selon l’un des aspects de l’invention, la pression d’air est de 0,1 à 0,3 bar par sortie d’air, de préférence sensiblement égale à 0.2 bar par sortie d'air.According to one of the aspects of the invention, the air pressure is 0.1 to 0.3 bar per air outlet, preferably substantially equal to 0.2 bar per air outlet.
Selon l’un des aspects de l’invention, la pression d’eau est de 0,5 à 3 bar par sortie d’eau, de préférence de 1,5 à 2 bar par sortie d’eau.According to one of the aspects of the invention, the water pressure is 0.5 to 3 bar per water outlet, preferably 1.5 to 2 bar per water outlet.
On entend par les termes « primaire » et « secondaire » ce qui permettent de hiérarchiser entre les différents jets, buses, notamment en termes de leur taille, tandis que les termes « premier » et « second » permettent seulement de distinguer seulement les termes entre eux sans les hiérarchiser.By the terms "primary" and "secondary" we mean what makes it possible to prioritize between the different jets, nozzles, particularly in terms of their size, while the terms "first" and "second" only make it possible to distinguish only the terms between them without prioritizing them.
Ainsi le « premier » fluide peut se référer aussi bien à l’eau que l’air. Il en va de même pour le « second » fluide.So the “first” fluid can refer to both water and air. The same goes for the “second” fluid.
D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement à la lecture de la description détaillée donnée ci-après, et de plusieurs exemples de réalisation donnés à titre indicatif et non limitatif en référence aux dessins schématiques annexés d’autre part, sur lesquels :Other characteristics, details and advantages of the invention will emerge more clearly on reading the detailed description given below, and several examples of embodiment given for informational and non-limiting purposes with reference to the schematic drawings annexed on the other hand. , on which ones :
est une vue de coupe partielle et schématique du dispositif de nettoyage et du dispositif optique selon un exemple de réalisation de l’invention, is a partial and schematic sectional view of the cleaning device and the optical device according to an exemplary embodiment of the invention,
représente une vue de coupe partielle du dispositif de nettoyage de la , en perspective, represents a partial sectional view of the cleaning device of the , in perspective,
est une vue agrandie de la zone en pointillée de la , is an enlarged view of the dotted area of the ,
est une vue de dessus des sorties de la buse primaire et de la buse secondaire. is a top view of the primary nozzle and secondary nozzle outlets.
et illustrent, respectivement, une vue schématique et partielle de l’embase et le couvercle formant la buse primaire ou la buse orientable, And illustrate, respectively, a schematic and partial view of the base and the cover forming the primary nozzle or the adjustable nozzle,
et illustrent une vue schématique et partielle, en perspective, de la buse primaire selon les deux orientations différentes, And illustrate a schematic and partial perspective view of the primary nozzle in the two different orientations,
et illustrent une vue schématique et partielle, en perspective, du dispositif de nettoyage selon les deux orientations différentes, And illustrate a schematic and partial view, in perspective, of the cleaning device in the two different orientations,
est une vue schématique et partielle, illustrant la buse secondaire et l’embase formant la buse primaire, en perspective, is a schematic and partial view, illustrating the secondary nozzle and the base forming the primary nozzle, in perspective,
représente le couvercle de la buse primaire vu du logement agencé pour recevoir au moins partiellement la buse secondaire, represents the cover of the primary nozzle seen from the housing arranged to at least partially receive the secondary nozzle,
illustre une vue de dessus et illustre une vue de côté, en perspective, de la buse primaire selon un mode de réalisation alternatif, illustrates a top view and illustrates a side view, in perspective, of the primary nozzle according to an alternative embodiment,
est une vue schématique et partielle, en coupe, de l’embase de la buse primaire comportant une sortie de fluide présentant une forme divergente, is a schematic and partial view, in section, of the base of the primary nozzle comprising a fluid outlet having a divergent shape,
et illustrent, respectivement, une vue schématique et partielle, en perspective, de l’assemblage comportant un dispositif de nettoyage et un support du dispositif optique, avant et après l’assemblage selon un mode de réalisation, And illustrate, respectively, a schematic and partial view, in perspective, of the assembly comprising a cleaning device and a support of the optical device, before and after the assembly according to one embodiment,
et illustrent notamment, une vue schématique et partielle de la [Fig.12], en perspective, des éléments de butée coopérant avec les glissières, And illustrate in particular, a schematic and partial view of [Fig.12], in perspective, of the stop elements cooperating with the slides,
et illustrent, respectivement, une vue schématique et partielle, en perspective, de l’assemblage comportant un dispositif de nettoyage et un support du dispositif optique, avant et après l’assemblage selon un mode de réalisation alternatif, And illustrate, respectively, a schematic and partial view, in perspective, of the assembly comprising a cleaning device and a support of the optical device, before and after the assembly according to an alternative embodiment,
est une vue schématique et partielle de la [Fig.14], illustrant notamment des éléments de butée coopérant avec les glissières, is a schematic and partial view of [Fig.14], illustrating in particular stop elements cooperating with the slides,
est une vue schématique et partielle d’une buse primaire de fluide comportant des glissières avec deux traverses selon un mode de réalisation alternatif, is a schematic and partial view of a primary fluid nozzle comprising slides with two crosspieces according to an alternative embodiment,
est une vue schématique et partielle d’un mode de réalisation alternatif dans lequel une portion de la buse secondaire est disposée en aval de la sortie primaire. is a schematic and partial view of an alternative embodiment in which a portion of the secondary nozzle is arranged downstream of the primary outlet.
On a représenté sur les figures 1 à 3 un dispositif de nettoyage 2 de la surface optique 4 d’un dispositif optique 6, notamment pour un véhicule (non-représenté). Figures 1 to 3 show a cleaning device 2 for the optical surface 4 of an optical device 6, in particular for a vehicle (not shown).
Le dispositif de nettoyage 2 comprend une buse primaire 8 agencée pour distribuer un premier fluide. La buse primaire 8 comporte une sortie primaire 10 de fluide agencée pour projeter un jet primaire du premier fluide vers la surface optique 4 du dispositif optique 6 et un canal intérieur 12 de la buse primaire 8 qui débouche sur la sortie primaire 10.The cleaning device 2 comprises a primary nozzle 8 arranged to distribute a first fluid. The primary nozzle 8 comprises a primary fluid outlet 10 arranged to project a primary jet of the first fluid towards the optical surface 4 of the optical device 6 and an internal channel 12 of the primary nozzle 8 which opens onto the primary outlet 10.
Le dispositif de nettoyage 2 comprend en outre une buse secondaire 14 agencée pour distribuer un second fluide. The cleaning device 2 further comprises a secondary nozzle 14 arranged to distribute a second fluid.
Comme illustré sur la , la buse primaire 8 comporte un logement 16 agencé pour recevoir partiellement la buse secondaire 14.As illustrated on the , the primary nozzle 8 comprises a housing 16 arranged to partially receive the secondary nozzle 14.
La buse primaire 8 comporte une partie frontale 18 agencée pour faire face au dispositif optique 6. Le logement 16 de la buse primaire 8 est partiellement formé par cette partie frontale 18 et la sortie primaire 10 est réalisée sur cette partie frontale 18. The primary nozzle 8 has a front part 18 arranged to face the optical device 6. The housing 16 of the primary nozzle 8 is partially formed by this front part 18 and the primary outlet 10 is produced on this front part 18.
La buse secondaire 14 comporte une sortie secondaire 20 de fluide agencée pour projeter un jet secondaire du second fluide vers la surface optique 4 du dispositif optique 6 et un canal de distribution 22 de la buse secondaire 14 configuré pour convoyer le fluide jusqu’à la sortie secondaire 20. The secondary nozzle 14 comprises a secondary fluid outlet 20 arranged to project a secondary jet of the second fluid towards the optical surface 4 of the optical device 6 and a distribution channel 22 of the secondary nozzle 14 configured to convey the fluid to the outlet secondary 20.
Les sorties primaire 10 et secondaire 20 sont configurées de sorte que la sortie secondaire 20 est placée sur le chemin parcouru par le premier fluide.The primary 10 and secondary 20 outlets are configured so that the secondary outlet 20 is placed on the path traveled by the first fluid.
Comme illustré sur la , une portion de la buse secondaire 14 est disposée dans le canal intérieur 12 de la buse primaire 8.As illustrated on the , a portion of the secondary nozzle 14 is arranged in the internal channel 12 of the primary nozzle 8.
Plus précisément, la sortie secondaire 20 est dans un tronçon 24 commun du canal intérieur 12 de la buse primaire 8 débouchant sur la sortie primaire 20.More precisely, the secondary outlet 20 is in a common section 24 of the interior channel 12 of the primary nozzle 8 opening onto the primary outlet 20.
Ici, le second fluide est mélangé au premier fluide en amont de la buse primaire 8. Here, the second fluid is mixed with the first fluid upstream of the primary nozzle 8.
Ici, le premier fluide est par exemple de l’air et le second liquide est par exemple un liquide lave-glace de sorte que le mélange de l’air et du liquide lave-glace forme une mousse à projetée sur la surface optique à nettoyer.Here, the first fluid is for example air and the second liquid is for example a windshield washer fluid so that the mixture of air and the windshield washer fluid forms a foam to be projected onto the optical surface to be cleaned. .
Comme illustré sur la , la sortie primaire 10 comporte une fente primaire 26 et la sortie secondaire 20 comporte une fente secondaire 28. La fente primaire 26 est plus large que la fente secondaire 28.As illustrated on the , the primary outlet 10 has a primary slot 26 and the secondary outlet 20 has a secondary slot 28. The primary slot 26 is wider than the secondary slot 28.
La fente secondaire 28 est en regard par rapport à la fente primaire 26. La fente primaire 26 a une forme oblongue tandis que la fente secondaire 28 a une forme de lune croissante.The secondary slot 28 faces the primary slot 26. The primary slot 26 has an oblong shape while the secondary slot 28 has the shape of a growing moon.
En l’occurrence, en référence à la l’agencement des sorties primaire 10 et secondaire 20 permet le jet primaire d’entourer le jet secondaire sur tout le pourtour du jet secondaire.In this case, with reference to the the arrangement of the primary 10 and secondary 20 outlets allows the primary jet to surround the secondary jet all around the secondary jet.
La buse secondaire 14 est munie d’une tête creuse 30 à l’extrémité de laquelle est réalisée la sortie secondaire 20 et d’une base 32. The secondary nozzle 14 is provided with a hollow head 30 at the end of which the secondary outlet 20 is made and with a base 32.
La buse secondaire 14 comporte un corps cylindrique 34 auquel se raccorde la tête creuse 30.The secondary nozzle 14 comprises a cylindrical body 34 to which the hollow head 30 is connected.
Le logement 16 de la buse primaire 8 a une forme cylindrique pouvant recevoir la buse secondaire 14.The housing 16 of the primary nozzle 8 has a cylindrical shape capable of receiving the secondary nozzle 14.
La tête creuse 30 et le corps 34 cylindrique de la buse secondaire 20 sont partiellement logés dans le logement 16 de la buse primaire 8. The hollow head 30 and the cylindrical body 34 of the secondary nozzle 20 are partially housed in the housing 16 of the primary nozzle 8.
La longueur du tronçon commun 24 est, deux fois plus petite que le diamètre de la tête creuse 30 de la buse secondaire 20.The length of the common section 24 is twice as small as the diameter of the hollow head 30 of the secondary nozzle 20.
Comme illustré sur les et 5B, la buse primaire 8 agencée pour distribuer un premier fluide 8 comporte une embase 36 et un couvercle 38.As illustrated on the and 5B, the primary nozzle 8 arranged to distribute a first fluid 8 comprises a base 36 and a cover 38.
Le couvercle 38 comportant une sortie 10 primaire de fluide configurée pour orienter le fluide vers la surface optique 4 du dispositif optique 6 ;The cover 38 comprising a primary fluid outlet 10 configured to direct the fluid towards the optical surface 4 of the optical device 6;
L’embase 36 et le couvercle 38 présentant chacun une ligne de contact configurée pour venir en contact totalement l’une à l’autre.The base 36 and the cover 38 each having a contact line configured to come into complete contact with one another.
En référence aux figures 6A, 6B et 7A, 7B, les lignes de contact sont tangentes à un plan commun et présentent quatre symétries de rotation autour d’un axe de rotation perpendiculaire au plan commun.With reference to Figures 6A, 6B and 7A, 7B, the contact lines are tangent to a common plane and have four rotational symmetries around an axis of rotation perpendicular to the common plane.
Comme visible sur les figures 5, 6A, 6B et 7A et 7B, l’embase 36 et le couvercle 38 présentent chacun un pourtour ayant la même forme.As visible in Figures 5, 6A, 6B and 7A and 7B, the base 36 and the cover 38 each have a perimeter having the same shape.
La partie frontale 18 est située sur le couvercle 38 de la buse primaire 8.The front part 18 is located on the cover 38 of the primary nozzle 8.
Les pourtours 40 de l’embase 36 et du couvercle 38 ont les mêmes formes que les lignes de contact.The peripheries 40 of the base 36 and the cover 38 have the same shapes as the contact lines.
Les lignes de contact sont adjacentes aux pourtours 40 de l’embase 36 et du couvercle 38. The contact lines are adjacent to the perimeters 40 of the base 36 and the cover 38.
Le couvercle 38 et l’embase 36 sont fixés à l’aide d’une bande de soudage 40.The cover 38 and the base 36 are fixed using a welding strip 40.
Le couvercle 38 ou l’embase 36 comprend une rainure 42 configurée pour recevoir la bande de soudage 44.The cover 38 or the base 36 includes a groove 42 configured to receive the welding strip 44.
La bande de soudage 44 et la rainure 42 longent la ligne de contact.The welding strip 44 and the groove 42 run along the contact line.
Le couvercle 38 et l’embase 36 ont un pourtour de forme sensiblement carrée avec des coins arrondis.The cover 38 and the base 36 have a substantially square shape with rounded corners.
De cette manière, le dispositif de nettoyage 2 peut être orienté selon les 4 orientations possibles avec un angle entre l’entrée primaire de fluide 46 et la sortie de fluide 10, 20 qui varie par pas de 90°. En d’autres termes, le dispositif 2 demeure invariant par une rotation d’un multiple de 90° autour de son centre.In this way, the cleaning device 2 can be oriented in the 4 possible orientations with an angle between the primary fluid inlet 46 and the fluid outlet 10, 20 which varies in steps of 90°. In other words, device 2 remains invariant by a rotation of a multiple of 90° around its center.
De façon alternative, le dispositif de nettoyage 2 peut être orienté selon les 3 orientations possibles parmi les 4 orientations autorisées par la forme du pourtour sensiblement carrée, sauf celle correspondant à la direction de l’arrivée de fluide.Alternatively, the cleaning device 2 can be oriented according to the 3 possible orientations among the 4 orientations authorized by the shape of the substantially square perimeter, except that corresponding to the direction of the fluid inlet.
Le couvercle 38 est monté sur l’embase 36 de sorte que le couvercle 38 puisse être mis en rotation par rapport à l’embase 36.The cover 38 is mounted on the base 36 so that the cover 38 can be rotated relative to the base 36.
Ainsi, le dispositif de nettoyage 2 peut être orienté à une pluralité d’angles compris entre 0 et 360° entre l’entrée de fluide 46 et la sortie de fluide 48. Le dispositif 2 demeure invariant par une rotation à n’importe quel angle compris 0 et 360°.Thus, the cleaning device 2 can be oriented at a plurality of angles between 0 and 360° between the fluid inlet 46 and the fluid outlet 48. The device 2 remains invariant by rotation at any angle including 0 and 360°.
L’embase 36 comprend une tubulure 50 d’entrée, en forme coudée, comportant une entrée de premier fluide 46.The base 36 comprises an inlet tube 50, in an elbow shape, comprising a first fluid inlet 46.
Le couvercle 38 comprend une entrée 48 de second fluide.The cover 38 includes a second fluid inlet 48.
Les entrées de premier fluide 46 et second fluide 48 sont configurées chacune pour permettre la connexion d’un tuyau d’amenée de fluide (non-représenté), respectivement vers la buse primaire x et la buse secondaire x.The first fluid 46 and second fluid 48 inlets are each configured to allow the connection of a fluid supply pipe (not shown), respectively to the primary nozzle x and the secondary nozzle x.
Comme illustré sur les figures 5A et 8, la tubulure 50 d’entrée débouche sur une ouverture de fluide 52 de forme divergente.As illustrated in Figures 5A and 8, the inlet tube 50 opens onto a fluid opening 52 of divergent shape.
L’embase 36 comporte au moins une nervure de renfort 54 joignant à la tubulure d’entrée 50.The base 36 includes at least one reinforcing rib 54 joining the inlet pipe 50.
Deux nervures de renfort 54 s’étendent perpendiculairement par rapport au sens de circulation de fluide dans la tubulure d’entrée 50. Two reinforcing ribs 54 extend perpendicular to the direction of fluid circulation in the inlet pipe 50.
En variante, comme illustré sur la , le couvercle 38 et l’embase 36 ont un pourtour 40 de forme circulaire.Alternatively, as illustrated in the , the cover 38 and the base 36 have a circumference 40 of circular shape.
Le couvercle 38 et l’embase 36 sont configurés pour permettre à une pluralité de positions relatives avec un pas déterminé entre deux positions successives, par exemple, à un pas compris entre 1 - 10°, plus particulièrement à un pas compris entre 1 – 5°.The cover 38 and the base 36 are configured to allow a plurality of relative positions with a determined step between two successive positions, for example, at a step between 1 - 10°, more particularly at a step between 1 - 5 °.
Le dispositif optique 6 est une caméra, notamment une caméra infrarouge, préférentiellement agencé pour aider à la conduite autonome, avantageusement agencé pour détecter la présence de gouttes d’eau sur une vitre (non-représentée).The optical device 6 is a camera, in particular an infrared camera, preferably arranged to assist autonomous driving, advantageously arranged to detect the presence of drops of water on a window (not shown).
Une pluralité de ces caméras, de préférence au moins dix caméras, peuvent être situées sur le véhicule, notamment à l’extérieur du véhicule.A plurality of these cameras, preferably at least ten cameras, can be located on the vehicle, in particular outside the vehicle.
Le dispositif 2 peut comporter une buse secondaire 14 outre la buse orientable 8, ou la buse primaire 8 susmentionnée.The device 2 may include a secondary nozzle 14 in addition to the adjustable nozzle 8, or the primary nozzle 8 mentioned above.
Le logement 16 de la buse primaire 8 comporte un joint torique 56 agencé pour caler la buse secondaire 14 dans la buse primaire 8.The housing 16 of the primary nozzle 8 includes an O-ring 56 arranged to wedge the secondary nozzle 14 in the primary nozzle 8.
En référence à la , un mode de réalisation alternatif dans lequel la sortie secondaire de fluide 20 présentant une forme divergente est représentée.In reference to the , an alternative embodiment in which the secondary fluid outlet 20 having a divergent shape is shown.
Ainsi, le jet 58 de fluide qui est issu de cette sortie de fluide 20 présente une forme divergente, avec un profil sensiblement triangulaire.Thus, the jet 58 of fluid which comes from this fluid outlet 20 has a divergent shape, with a substantially triangular profile.
La sortie secondaire de fluide 20 est formée par des facettes 60 configurées pour générer le jet 58 divergent. The secondary fluid outlet 20 is formed by facets 60 configured to generate the divergent jet 58.
Parmi ces facettes 60, figurent deux facettes 60 planes en regard et divergente en direction de l’extérieur, qui confèrent au jet 58 la forme divergente.Among these facets 60, there are two plane facets 60 facing each other and diverging towards the outside, which give the jet 58 the divergent shape.
Le dispositif de nettoyage 2 comporte un réservoir de fluide 62 situé en amont d’un canal de distribution 22 de la buse secondaire 14.The cleaning device 2 comprises a fluid reservoir 62 located upstream of a distribution channel 22 of the secondary nozzle 14.
En référence aux figures 6A-6B, et 7A-7B, le couvercle 38 comporte un promontoire 64 s’étendant depuis un socle 66 du couvercle 38, et deux rampes 68 s’étendant du promontoire 64, à savoir une rampe 68 supérieure et une rampe 68 inférieure, parallèles entre elles.With reference to Figures 6A-6B, and 7A-7B, the cover 38 comprises a promontory 64 extending from a base 66 of the cover 38, and two ramps 68 extending from the promontory 64, namely an upper ramp 68 and a lower ramp 68, parallel to each other.
Chaque rampe 68 est inclinée par rapport au plan parallèle au promontoire 64, notamment sensiblement inclinée à 45° du plan.Each ramp 68 is inclined relative to the plane parallel to the promontory 64, in particular substantially inclined at 45° from the plane.
Le pourtour du promontoire 64 présente une forme oblongue. The perimeter of promontory 64 has an oblong shape.
La partie frontale 18 comprend le sommet 70 du promontoire 64 et une partie surélevée 72 située sur la rampe 68 supérieure et adjacente au sommet 70 du promontoire 64. The frontal part 18 comprises the summit 70 of the promontory 64 and a raised part 72 located on the upper ramp 68 and adjacent to the summit 70 of the promontory 64.
La sortie primaire 10 est située au sommet 70 du promontoire 64.Primary exit 10 is located at summit 70 of promontory 64.
Le pourtour du sommet 70 du promontoire 64 épouse sensiblement le pourtour de la sortie primaire 10. Ces deux pourtours ont une forme oblongue.The periphery of the summit 70 of the promontory 64 substantially matches the periphery of the primary outlet 10. These two peripheries have an oblong shape.
La partie surélevée 72 comporte un renflement 73 qui se prolonge depuis le sommet 70 du promontoire 64.The raised part 72 includes a bulge 73 which extends from the summit 70 of the promontory 64.
En référence aux figures 3, 5B et 8, le couvercle 38 comporte un passage de sortie 76, agencé pour recevoir la tête creuse 30 de la buse secondaire 14. With reference to Figures 3, 5B and 8, the cover 38 includes an outlet passage 76, arranged to receive the hollow head 30 of the secondary nozzle 14.
Le passage de sortie 76 est circulaire et situé sur une paroi du canal intérieur 12 de la buse primaire 8. The outlet passage 76 is circular and located on a wall of the interior channel 12 of the primary nozzle 8.
Le logement 16 de la buse primaire 8 s’étend de manière adjacente aux deux rampes 68.The housing 16 of the primary nozzle 8 extends adjacent to the two ramps 68.
Le logement 16 comporte à son entrée deux ailes 74 symétriques par rapport à un plan de symétrie (P) passant par le milieu du socle 66 du couvercle 38 de la buse primaire 8 de fluide.The housing 16 comprises at its entrance two wings 74 symmetrical with respect to a plane of symmetry (P) passing through the middle of the base 66 of the cover 38 of the primary fluid nozzle 8.
Ainsi, les contraintes subies par les ailes 74 sont réparties de façon optimale.Thus, the stresses experienced by the wings 74 are distributed optimally.
La base 32 de la buse secondaire 14 comporte en outre un organe de maintien 76 et au moins un organe de guidage 78, ces organes 76, 78 étant agencés chacun pour coopérer avec le logement 16 de la buse primaire 8.The base 32 of the secondary nozzle 14 further comprises a holding member 76 and at least one guide member 78, these members 76, 78 each being arranged to cooperate with the housing 16 of the primary nozzle 8.
L’organe de maintien 76 de la buse secondaire 14 comporte deux pattes 80 d’encliquetage agencées chacune pour coopérer avec un orifice 82 de l’aile 74 du logement 16 de la buse primaire 8.The holding member 76 of the secondary nozzle 14 comprises two latching tabs 80 each arranged to cooperate with an orifice 82 of the wing 74 of the housing 16 of the primary nozzle 8.
Le logement 16 comporte une extension 84 située à l’entrée 17 du logement 16.Housing 16 includes an extension 84 located at the entrance 17 of housing 16.
Le logement 16 comporte en outre une lèvre 86 à l’entrée 17 du logement 16 en regard de l’extension 84.The housing 16 further includes a lip 86 at the entrance 17 of the housing 16 facing the extension 84.
L’organe de guidage 78 de la buse secondaire 14 comporte un détrompeur 88 agencé pour coopérer avec une rainure 90 du logement 16 de la buse primaire 8 de sorte à former une liaison glissière à travers un axe (A) le long du logement 16.The guide member 78 of the secondary nozzle 14 comprises a keying device 88 arranged to cooperate with a groove 90 of the housing 16 of the primary nozzle 8 so as to form a sliding connection through an axis (A) along the housing 16.
Avantageusement, le détrompeur 88 est une languette.Advantageously, the key 88 is a tab.
L’organe de maintien 76 de la buse secondaire 14 comporte une saillie supérieure 92 agencée pour coopérer avec l’extension 84 du logement 16 de la buse primaire 8.The holding member 76 of the secondary nozzle 14 comprises an upper projection 92 arranged to cooperate with the extension 84 of the housing 16 of the primary nozzle 8.
L’organe de maintien 76 de la buse secondaire 14 comporte une saillie inférieure 94 agencée pour coopérer avec la lèvre 86 du logement 16 de la buse primaire 8.The holding member 76 of the secondary nozzle 14 comprises a lower projection 94 arranged to cooperate with the lip 86 of the housing 16 of the primary nozzle 8.
Les saillies supérieure 92 et inférieure 94 sont symétriques entre elles par rapport au plan parallèle au plan du socle 66 du couvercle 38 et passant par le milieu du logement 16.The upper 92 and lower 94 projections are symmetrical to each other with respect to the plane parallel to the plane of the base 66 of the cover 38 and passing through the middle of the housing 16.
Ainsi, les contraintes subies par les saillies 92, 94 sont réparties de façon optimale.Thus, the stresses experienced by the projections 92, 94 are distributed optimally.
On a représenté sur les figures 12A-12B, 13A-13B, 14A-14B, et 15 une buse primaire 8 de fluide configurée pour être assemblée avec un support 96 du dispositif optique 6, ainsi qu’un assemblage 98 comportant le dispositif 2 de nettoyage et le support 98, le dispositif 2 et le support 98 étant assemblés ensemble par coopération des organes de guidage 100, 102 et de retenue 104, 106 respectifs.12A-12B, 13A-13B, 14A-14B, and 15 show a primary fluid nozzle 8 configured to be assembled with a support 96 of the optical device 6, as well as an assembly 98 comprising the device 2 of cleaning and the support 98, the device 2 and the support 98 being assembled together by cooperation of the respective guide members 100, 102 and retaining members 104, 106.
La buse primaire 8 comporte une embase 36 et un couvercle 38 présentant chacun une ligne de contact configurée pour venir en contact totalement l’une à l’autre, les lignes de contact étant tangentes à un plan commun.The primary nozzle 8 comprises a base 36 and a cover 38 each having a contact line configured to come into complete contact with one another, the contact lines being tangent to a common plane.
Le support 96 est agencé à coopérer avec le couvercle 38 situé sur un demi-espace supérieur par rapport au plan commun.The support 96 is arranged to cooperate with the cover 38 located on a half-space higher than the common plane.
La dimension maximale de la buse primaire 8 est plus grande que la dimension maximale du support 96.The maximum dimension of the primary nozzle 8 is larger than the maximum dimension of the support 96.
La buse primaire 8 comporte l’organe de guidage 100 agencé pour coopérer avec l’organe de guidage complémentaire 102 du support 96 du dispositif optique 6, de sorte à permettre l’assemblage de la buse primaire 8 avec le support 96.The primary nozzle 8 comprises the guide member 100 arranged to cooperate with the complementary guide member 102 of the support 96 of the optical device 6, so as to allow the assembly of the primary nozzle 8 with the support 96.
La buse primaire 8 comporte en outre l’organe de retenue 104 configuré pour coopérer par encliquetage avec l’organe de retenue complémentaire 106 du support 96, de sorte à permettre l’encliquetage de la buse primaire 8 sur le support 96.The primary nozzle 8 further comprises the retaining member 104 configured to cooperate by snapping with the complementary retaining member 106 of the support 96, so as to allow the snapping of the primary nozzle 8 on the support 96.
Grâce à l’encliquetage de la buse primaire 8 sur le support 96 du dispositif optique 6, l’invention permet de simplifier le montage du dispositif optique 6 sur la buse primaire 8 de fluide, car le montage ne nécessite pas d’outils particuliers, ni d’éléments de fixation mécanique supplémentaires tels que des vis (non-représentées). Thanks to the snap-fastening of the primary nozzle 8 on the support 96 of the optical device 6, the invention makes it possible to simplify the mounting of the optical device 6 on the primary fluid nozzle 8, because the assembly does not require special tools, nor additional mechanical fastening elements such as screws (not shown).
De cette manière, le montage peut se faire de manière précise et rapide.In this way, assembly can be done precisely and quickly.
L’organe de guidage 100 de la buse primaire 8 comporte deux glissières 108 externes symétriques entre elles par rapport au plan de symétrie (P), agencées pour coopérer avec l’organe de guidage complémentaire 102 formé sur une paroi 110 interne du support 96.The guide member 100 of the primary nozzle 8 comprises two external slides 108 symmetrical to each other with respect to the plane of symmetry (P), arranged to cooperate with the complementary guide member 102 formed on an internal wall 110 of the support 96.
Comme illustré sur les figures 12A et 14A, la glissière 108 comporte deux rampes 68 parallèles et reliées entre elles par une traverse 112, de sorte que les rampes 68 et la traverse 112 définissent un rail sur lequel l’une des parois 110 internes du support 96 puisse glisser. As illustrated in Figures 12A and 14A, the slide 108 comprises two parallel ramps 68 connected to each other by a crosspiece 112, so that the ramps 68 and the crosspiece 112 define a rail on which one of the internal walls 110 of the support 96 can slip.
Comme illustré sur la , la glissière 108 peut comporter deux rampes 68 parallèles et reliées entre elles par deux traverses 112 définissant un rail sur lequel l’une des parois 110 internes du support 96 puisse glisser. As illustrated on the , the slide 108 may include two parallel ramps 68 connected to each other by two crosspieces 112 defining a rail on which one of the internal walls 110 of the support 96 can slide.
Comme illustré sur les figures 6A-6B, le couvercle 38 comporte deux nervures de renfort 54 qui sont situées perpendiculairement à la traverse 112 de la glissière 108.As illustrated in Figures 6A-6B, the cover 38 has two reinforcing ribs 54 which are located perpendicular to the crosspiece 112 of the slide 108.
Comme visible sur les figures 12A-12B, l’organe de guidage x comprend, outre les glissières 108, des cloisons 114 de fin de course fermant l’extrémité des rails formant les glissières 108, les cloisons 114 étant agencées pour coopérer avec des éléments de butée 116 du support 96.As visible in Figures 12A-12B, the guide member x comprises, in addition to the slides 108, end-of-stroke partitions 114 closing the end of the rails forming the slides 108, the partitions 114 being arranged to cooperate with elements of stop 116 of support 96.
Dans cet exemple, l’organe de retenue 104 de la buse primaire 8 comprend une protubérance 118 de maintien située parallèlement au plan de symétrie (P). In this example, the retaining member 104 of the primary nozzle 8 comprises a holding protuberance 118 located parallel to the plane of symmetry (P).
Comme visible sur la , en variante, la traverse 112 de la glissière 108 est agencée pour coopérer avec une patte 120 d’encliquetage de maintien de l’organe de retenue complémentaire 106 du support 96. As visible on the , as a variant, the crosspiece 112 of the slide 108 is arranged to cooperate with a latch tab 120 for holding the complementary retaining member 106 of the support 96.
On a représenté sur les figures 12A-12B, 13A-13B, 14A-14B, et 15, le support 96 configuré pour être assemblé avec la buse primaire 8 de fluide.We show in Figures 12A-12B, 13A-13B, 14A-14B, and 15, the support 96 configured to be assembled with the primary fluid nozzle 8.
Le support 96 comporte l’organe de guidage complémentaire 102 agencé pour coopérer par encliquetage avec l’organe de guidage 100 de la buse primaire 8 de fluide, de sorte à permettre l’assemblage du support 96 avec la buse primaire 8. The support 96 comprises the complementary guide member 102 arranged to cooperate by snap-fastening with the guide member 100 of the primary fluid nozzle 8, so as to allow the assembly of the support 96 with the primary nozzle 8.
Le support 96 comporte en outre l’organe de retenue complémentaire 106 configuré pour coopérer avec l’organe de retenue 104 de la buse primaire 8, de sorte à permettre l’encliquetage de la buse primaire 8 sur le support 96.The support 96 further comprises the complementary retaining member 106 configured to cooperate with the retaining member 104 of the primary nozzle 8, so as to allow the primary nozzle 8 to snap into place on the support 96.
L’organe de guidage complémentaire 102, agencé pour coopérer avec deux glissières 108 externes de l’organe de guidage 100, est formé sur la paroi interne 110 du support 96. Les deux glissières 108 externes sont symétriques entre elles par rapport au plan de symétrie (P).The complementary guide member 102, arranged to cooperate with two external slides 108 of the guide member 100, is formed on the internal wall 110 of the support 96. The two external slides 108 are symmetrical to each other with respect to the plane of symmetry (P).
L’organe de guidage a une forme en U.The guide member has a U shape.
Le support 96 comporte en outre deux éléments 116 de butée agencée pour délimiter la fin de course de l’organe de guidage complémentaire 102 du support 96 sur l’organe de guidage 100 de la buse primaire 8.The support 96 further comprises two stop elements 116 arranged to delimit the end of travel of the complementary guide member 102 of the support 96 on the guide member 100 of the primary nozzle 8.
Comme illustré sur les figures 12A-12B, l’organe de retenue complémentaire 106 comporte en outre une patte d’encliquetage 120 agencée pour coopérer avec une protubérance 118 de maintien de l’organe de retenue 104 de la buse primaire 8. As illustrated in Figures 12A-12B, the complementary retaining member 106 further comprises a latching tab 120 arranged to cooperate with a protuberance 118 for holding the retaining member 104 of the primary nozzle 8.
Comme illustré sur la , les éléments de butée 116 de support 96 sont agencés pour coopérer avec des cloisons 114 de fin de course fermant chaque extrémité du rail formant la glissière 108 de la buse primaire 8. As illustrated on the , the stop elements 116 of support 96 are arranged to cooperate with end-of-stroke partitions 114 closing each end of the rail forming the slide 108 of the primary nozzle 8.
Comme illustré sur les figures 14A-14B, en variante, l’organe de retenue complémentaire 106 comporte deux pattes 120 d’encliquetage agencées pour coopérer avec chaque traverse 112 des deux glissières 108 de la buse primaire 8.As illustrated in Figures 14A-14B, as a variant, the complementary retaining member 106 comprises two latching tabs 120 arranged to cooperate with each crosspiece 112 of the two slides 108 of the primary nozzle 8.
Toujours dans cet exemple des figures 14A-14B, les pattes 120 d’encliquetage de maintien sont situées sur une paroi interne 110 du support 96. Still in this example of Figures 14A-14B, the retaining latch tabs 120 are located on an internal wall 110 of the support 96.
En référence à la , dans un mode de réalisation alternatif, on peut prévoir que l’organe de retenue complémentaire (non-représenté) comporte deux pattes 120 d’encliquetage agencées pour coopérer avec deux traverses 112 de la glissière 108 de la buse primaire 8. In reference to the , in an alternative embodiment, it can be provided that the complementary retaining member (not shown) comprises two latching tabs 120 arranged to cooperate with two crosspieces 112 of the slide 108 of the primary nozzle 8.
Toutes les caractéristiques correspondant à la buse primaire 8 et au support 96 s’appliquent également au cas où le dispositif 2 comporte une buse secondaire 14 outre la buse primaire 8.All the characteristics corresponding to the primary nozzle 8 and the support 96 also apply to the case where the device 2 includes a secondary nozzle 14 in addition to the primary nozzle 8.
Comme illustré sur la , dans un mode de réalisation alternatif, une portion de la buse secondaire 14 est disposée en aval de la sortie primaire 10.As illustrated on the , in an alternative embodiment, a portion of the secondary nozzle 14 is arranged downstream of the primary outlet 10.
Nomenclature
Nomenclature
2 : dispositif de nettoyage
2: cleaning device
4 : surface optique
4: optical surface
6 : dispositif optique
6: optical device
8 : buse primaire
8: primary nozzle
10 : sortie primaire de fluide
10: primary fluid outlet
12 : canal intérieur de la buse primaire
12: inner channel of the primary nozzle
14 : buse secondaire
14: secondary nozzle
16 : logement de la buse primaire agencé pour recevoir la buse secondaire
16: housing of the primary nozzle arranged to receive the secondary nozzle
17 : entrée du logement
17: entrance to the accommodation
18 : partie frontale
18: front part
20 : sortie secondaire de fluide
20: secondary fluid outlet
22 : canal de distribution de la buse secondaire
22: secondary nozzle distribution channel
24 : tronçon
24: section
26 : fente primaire
26: primary slot
28 : fente secondaire
28: secondary slot
30 : tête creuse de la buse secondaire
30: hollow head of the secondary nozzle
32 : base
32: base
34 : corps cylindrique
34: cylindrical body
36 : embase
36: base
38 : couvercle
38: cover
40 : pourtour de l’embase et du couvercle
40: perimeter of the base and cover
42 : rainure
42: groove
44 : bande de soudage
44: welding strip
46 : entrée de premier fluide
46: first fluid entry
48 : entrée de second fluide
48: second fluid inlet
50 : tubulure d’entrée
50: inlet pipe
52 : ouverture de fluide de forme divergente
52: fluid opening of divergent shape
54 : nervure de renfort
54: reinforcing rib
56 : joint torique
56: O-ring
58 : jet de fluide
58: fluid jet
60 : facette
60: facet
62 : réservoir de fluide
62: fluid reservoir
64 : promontoire
64: promontory
66 : socle du couvercle
66: cover base
68 : rampe
68: ramp
70 : sommet du promontoire
70: summit of the promontory
72 : partie surélevée
72: raised part
73 : renflement
73: bulge
74 : aile
74: wing
76 : organe de maintien de la base de la buse secondaire
76: member for maintaining the base of the secondary nozzle
78 : organe de guidage de la base de la buse secondaire
78: guide member of the base of the secondary nozzle
80 : patte d’encliquetage de l’organe de maintien de la base de la buse secondaire
80: latching tab of the member holding the base of the secondary nozzle
82 : orifice de l’aile du logement de la buse primaire
82: orifice of the wing of the primary nozzle housing
84 : extension du logement de la buse primaire
84: extension of the primary nozzle housing
86 : lèvre du logement de la buse primaire
86: lip of the primary nozzle housing
88 : détrompeur
88: key
90 : rainure du logement de la buse primaire
90: primary nozzle housing groove
92 : saillie supérieure agencée pour coopérer avec l’extension
92: upper projection arranged to cooperate with the extension
94 : saillie inférieure agencée pour coopérer avec la lèvre
94: lower projection arranged to cooperate with the lip
96 : support du dispositif optique
96: optical device support
98 : assemblage comportant le dispositif de nettoyage et le support
98: assembly comprising the cleaning device and the support
100 : organe de guidage de la buse primaire
100: guide member of the primary nozzle
102 : organe de guidage complémentaire du support du dispositif optique
102: complementary guide member of the optical device support
104 : organe de retenue de la buse primaire
104: retaining member of the primary nozzle
106 : organe de retenue complémentaire du support du dispositif optique
106: complementary retaining member of the optical device support
108 : glissière
108: slide
110 : paroi interne du support
110: internal wall of the support
112 : traverse reliant les rampes
112: crossbar connecting the ramps
114 : cloison de fin de course fermant l’extrémité du rail formant la glissière
114: end of travel partition closing the end of the rail forming the slide
116 : élément de butée du support du dispositif optique
116: stop element of the optical device support
118 : protubérance de maintien de l’organe de retenue de la buse primaire
118: protuberance for holding the retaining member of the primary nozzle
120 : patte d’encliquetage de maintien de l’organe de retenue complémentaire120: snap tab for holding the complementary retaining member

Claims (15)

  1. Dispositif de nettoyage (2) de la surface optique (4) d’un dispositif optique (6), notamment pour un véhicule, comprenant :
    - une buse primaire (8) agencée pour distribuer un premier fluide, et comportant :
    o une sortie primaire (10) de fluide agencée pour projeter un jet primaire du premier fluide vers la surface optique (4) du dispositif optique (6) ; et
    o un canal intérieur (12) de la buse primaire (8) qui débouche sur la sortie primaire (10) ;
    - une buse secondaire (14) agencée pour distribuer un second fluide, et comportant :
    • une sortie secondaire (20) de fluide agencée pour projeter un jet secondaire du second fluide vers la surface optique (4) du dispositif optique (6) ; et
    • un canal de distribution (22) de la buse secondaire (14) configuré pour convoyer le fluide jusqu’à la sortie secondaire (20),
    les sorties primaire (10) et secondaire (20) étant configurées de sorte que la sortie secondaire (20) soit placée sur le chemin parcouru par le premier fluide.    Device for cleaning (2) the optical surface (4) of an optical device (6), in particular for a vehicle, comprising:
    - a primary nozzle (8) arranged to distribute a first fluid, and comprising:
    o a primary fluid outlet (10) arranged to project a primary jet of the first fluid towards the optical surface (4) of the optical device (6); And
    o an interior channel (12) of the primary nozzle (8) which opens onto the primary outlet (10);
    - a secondary nozzle (14) arranged to distribute a second fluid, and comprising:
    • a secondary fluid outlet (20) arranged to project a secondary jet of the second fluid towards the optical surface (4) of the optical device (6); And
    • a distribution channel (22) of the secondary nozzle (14) configured to convey the fluid to the secondary outlet (20),
    the primary (10) and secondary (20) outlets being configured so that the secondary outlet (20) is placed on the path traveled by the first fluid.
  2. Dispositif selon la revendication 1, dans lequel le jet primaire entoure le jet secondaire au moins à la sortie (20) du jet secondaire, au moins sur la moitié du pourtour du jet secondaire.Device according to claim 1, in which the primary jet surrounds the secondary jet at least at the outlet (20) of the secondary jet, at least on half of the periphery of the secondary jet.
  3. Dispositif selon la revendication 2, dans lequel le jet primaire entoure le jet secondaire sur tout le pourtour du jet secondaire.Device according to claim 2, in which the primary jet surrounds the secondary jet all around the secondary jet.
  4. Dispositif selon l’une des revendications 1 à 3, dans lequel au moins une portion de la buse secondaire (14) est disposée en aval de la sortie primaire (10).Device according to one of claims 1 to 3, in which at least one portion of the secondary nozzle (14) is arranged downstream of the primary outlet (10).
  5. Dispositif selon l’une des revendications 1 à 3, dans lequel au moins une portion de la buse secondaire est disposée dans le canal intérieur (12) de la buse primaire (8).Device according to one of claims 1 to 3, in which at least one portion of the secondary nozzle is arranged in the internal channel (12) of the primary nozzle (8).
  6. Dispositif selon l’une quelconque des revendications précédentes, dans lequel la buse primaire comporte un logement (16) agencé pour recevoir au moins partiellement la buse secondaire (14).Device according to any one of the preceding claims, in which the primary nozzle comprises a housing (16) arranged to at least partially receive the secondary nozzle (14).
  7. Dispositif selon la revendication 5, dans lequel la buse primaire (8) comporte une partie frontale (18) agencée pour faire face au dispositif optique (6), et le logement (14) étant au moins partiellement formé par cette partie frontale (18) et la sortie primaire (10) est réalisée sur cette partie frontale (18). Device according to claim 5, in which the primary nozzle (8) comprises a front part (18) arranged to face the optical device (6), and the housing (14) being at least partially formed by this front part (18) and the primary outlet (10) is produced on this front part (18).
  8. Dispositif selon l’une quelconque des revendications précédentes, dans lequel la sortie primaire (10) comporte une fente primaire (26).Device according to any one of the preceding claims, wherein the primary outlet (10) comprises a primary slot (26).
  9. Dispositif selon l’une quelconque des revendications précédentes, dans lequel la sortie secondaire (20) comporte une fente secondaire (28).Device according to any one of the preceding claims, in which the secondary outlet (20) comprises a secondary slot (28).
  10. Dispositif selon la revendication 8, dans lequel la fente primaire (26) est plus large que la fente secondaire (28).Device according to claim 8, wherein the primary slot (26) is wider than the secondary slot (28).
  11. Dispositif selon la revendication 9, dans lequel la fente secondaire (28) est en regard par rapport à la fente primaire (26).Device according to claim 9, in which the secondary slot (28) faces the primary slot (26).
  12. Dispositif selon l’une quelconque des revendications précédentes, dans lequel la buse secondaire (14) est munie d’une tête creuse (30) à l’extrémité de laquelle est réalisée la sortie secondaire (20) et d’une base (32). Device according to any one of the preceding claims, in which the secondary nozzle (14) is provided with a hollow head (30) at the end of which is made the secondary outlet (20) and with a base (32) .
  13. Dispositif selon la revendication 11, dans lequel la buse secondaire (14) comporte un corps cylindrique (34) auquel se raccorde la tête creuse (30).Device according to claim 11, in which the secondary nozzle (14) comprises a cylindrical body (34) to which the hollow head (30) is connected.
  14. Dispositif selon l’une quelconque des revendications précédentes, dans lequel la sortie primaire (10) de fluide ou la sortie secondaire (20) de fluide présente une forme divergente. Device according to any one of the preceding claims, in which the primary fluid outlet (10) or the secondary fluid outlet (20) has a divergent shape.
  15. Dispositif selon la revendication 14, dans lequel la sortie primaire (10) de fluide ou la sortie secondaire (20) de fluide est formée par des facettes (60) configurées pour générer le jet (58) divergent. Device according to claim 14, wherein the primary fluid outlet (10) or the secondary fluid outlet (20) is formed by facets (60) configured to generate the divergent jet (58).
PCT/EP2023/075977 2022-09-21 2023-09-20 Cleaning device comprising nozzles WO2024061990A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FRFR2209569 2022-09-21
FR2209569A FR3139776A1 (en) 2022-09-21 2022-09-21 Cleaning device including nozzles

Publications (1)

Publication Number Publication Date
WO2024061990A1 true WO2024061990A1 (en) 2024-03-28

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Application Number Title Priority Date Filing Date
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Country Status (2)

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FR (1) FR3139776A1 (en)
WO (1) WO2024061990A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020005440A1 (en) * 1999-06-11 2002-01-17 Holt Donald E. Fluid and air nozzle and method for cleaning vehicle lenses
DE102015217546B3 (en) * 2015-09-14 2017-03-02 Continental Automotive Gmbh Cleaning device for cleaning a transparent cover of a camera
EP2873572B1 (en) * 2012-07-11 2017-05-10 Nissan Motor Co., Ltd. Vehicle-mounted-camera cleaning device, and vehicle-mounted-camera cleaning method
US20180361997A1 (en) * 2017-06-15 2018-12-20 Ford Global Technologies, Llc Sensor apparatus
WO2019238764A1 (en) * 2018-06-14 2019-12-19 Valeo Systèmes d'Essuyage Telescopic cleaning device for motor vehicle
JP2020157897A (en) * 2019-03-26 2020-10-01 クラリオン株式会社 Washing nozzle unit and on-vehicle camera unit
WO2021083497A1 (en) * 2019-10-29 2021-05-06 Volvo Truck Corporation A sensor cleaning device
EP3609747B1 (en) * 2017-04-11 2021-09-15 Continental Automotive GmbH Cleaning device for cleaning a transparent cover of an optical or optoelectronic device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020005440A1 (en) * 1999-06-11 2002-01-17 Holt Donald E. Fluid and air nozzle and method for cleaning vehicle lenses
EP2873572B1 (en) * 2012-07-11 2017-05-10 Nissan Motor Co., Ltd. Vehicle-mounted-camera cleaning device, and vehicle-mounted-camera cleaning method
DE102015217546B3 (en) * 2015-09-14 2017-03-02 Continental Automotive Gmbh Cleaning device for cleaning a transparent cover of a camera
EP3609747B1 (en) * 2017-04-11 2021-09-15 Continental Automotive GmbH Cleaning device for cleaning a transparent cover of an optical or optoelectronic device
US20180361997A1 (en) * 2017-06-15 2018-12-20 Ford Global Technologies, Llc Sensor apparatus
WO2019238764A1 (en) * 2018-06-14 2019-12-19 Valeo Systèmes d'Essuyage Telescopic cleaning device for motor vehicle
JP2020157897A (en) * 2019-03-26 2020-10-01 クラリオン株式会社 Washing nozzle unit and on-vehicle camera unit
WO2021083497A1 (en) * 2019-10-29 2021-05-06 Volvo Truck Corporation A sensor cleaning device

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