• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device for cleaning a sensor of a motor vehicle. The device according to the invention comprises means of simultaneous or sequential distribution, by a dispensing orifice (11) arranged in a dispensing nozzle (1), of a first fluid and / or a second fluid conveyed, respectively, by a first inlet channel (2) and / or a second inlet channel (3), to a common distribution chamber (10) arranged in said distribution nozzle (1). It also comprises means for moving the dispensing nozzle (1) between a rest position and an extended position, and these means for moving the dispensing nozzle (1) comprise means common to the feed means first. fluid of the first intake channel (2).
    公开号:FR3039114A1
    申请号:FR1556960
    申请日:2015-07-22
    公开日:2017-01-27
    发明作者:Marcel Trebouet；Giuseppe Grasso
    申请人:Valeo Systemes dEssuyage SAS；
    IPC主号:
    专利说明:

    DEVICE FOR CLEANING A SENSOR FOR A VEHICLE
    AUTOMOBILE
    The present invention relates to the field of driving assistance devices and, more particularly, to the field of sensors used for this purpose, such as means of shooting, in particular cameras, or means of detection by waves. electromagnetic fields, in particular radar or lidars. In this field, the invention relates more particularly to the cleaning devices of such sensors.
    Sensors equip an increasing number of motor vehicles to assist the driver of the vehicle in certain driving situations, one of which, well known, is the parking aid. For this aid to be as effective as possible, the images provided by the captured means, or the data transmitted by the radars for example, must be of the best possible quality and it is therefore essential to have faces of these sensors, turned to the outside of the vehicle, which are clean. To do this, a sensor cleaning device can be associated with this sensor, and controlled to inject, on said sensor, a stream of cleaning fluid just before the detection is performed. It is advantageous to control the device to determine the duration and the beginning of the cleaning sequence, and to be able to retract the cleaning device after use, so that they do not interfere with the detection when the sensors are in operation, and so that they are protected from shocks, for example. In addition, they must be as compact as possible to meet the congestion constraints of the vehicle. Furthermore, it is desired that such devices allow the injection of different fluids, gaseous or liquid. Indeed, in the case where a cleaning fluid is projected on the sensor, and for example the lens of a camera shooting, to chase the dirt, it is interesting to quickly dry the lens to avoid any risk of pollution of the image by any traces that such a liquid could leave (drops, drips, etc ...).
    The present invention aims to optimize such a cleaning device. both in its cleaning performance and in its size.
    For this purpose, the subject of the invention is a device for cleaning a sensor of a motor vehicle, which comprises means of simultaneous or sequential distribution, by a dispensing orifice arranged in a dispensing nozzle, of a first fluid and / or a second fluid conveyed separately, respectively, by a first inlet channel and / or a second inlet channel to the dispensing nozzle. The device according to the invention also comprises means for moving the dispensing nozzle between a rest position and an extended position, in particular a displacement in translation, and in particular along an axis parallel to the elongation direction of the first and second distribution channels. And it is notable that these means of displacement of the dispensing nozzle comprise common means with the first fluid supply means of the first intake channel.
    In particular, these common means may comprise at least one piston, made movable in displacement by the pressure exerted by the first fluid, and whose associated rod has an end connected to the dispensing nozzle.
    In more detail, provision may be made for the first-fluid supply means of the first intake channel to comprise a supply chamber in which a piston is slidably closed, one end of one rod of which is, according to the invention, secured to a slideway itself integrally connected to the dispensing nozzle. As a result, any displacement of the piston generates a displacement of the slide, which in turn causes a displacement of the dispensing nozzle.
    It can be provided that the first and second intake channels are integral in displacement of the dispensing nozzle, in such a way that the means for displacing the nozzle move the assembly formed by the first intake channel, the second intake channel, and the dispensing nozzle.
    According to a series of characteristics of the invention, taken alone or in combination, provision may be made for the first intake channel and the second intake channel to be parallel to each other, and the dispensing nozzle extends in the extension of these first and second intake channels, in the same direction as the latter. It can also be provided that the first inlet channel and the second inlet channel communicate with each other via a common distribution chamber in which they open respectively, in particular at a first conveying orifice and a second routing port. Advantageously, the first intake channel and the second intake channel are respectively provided, at their end by which, respectively, the first and second fluids are admitted within them, a first non-return valve and a second non-return valve.
    It can be provided that the device comprises two separate fluid inlets for the first fluid supply of the first intake channel and the second fluid supply of the second intake channel, the first fluid supply of the first delivery channel. intake being connected to the feeding chamber.
    According to another characteristic of the invention, the first fluid supply means of the first intake channel further comprise a feed nozzle opening into the feed chamber, as well as a flow orifice formed in a wall of said feed chamber, whereby the first fluid can, under certain conditions which will be detailed below, be conveyed, in particular through a flexible supply cannula, to the first intake channel. Advantageously, this flow orifice is placed in such a way that it opens alternately, on the one hand, in a downstream volume of the feed chamber, in which the first fluid is admitted by the feed nozzle, and on the other hand, in an upstream volume of said feed chamber, free of first fluid, depending on the position of a platen of the piston during the sealed displacement of said piston within said feed chamber. In other words, in the piston stroke within the feed chamber, the latter delimits, by a plate that it comprises, an upstream volume and a downstream volume in the latter. More specifically, the downstream volume is the volume that receives the first fluid, admitted into the feed chamber by the feed nozzle, and the upstream volume is the complementary volume defined by the piston plate in the feed chamber. . The respective dimensions of the upstream volume and the downstream volume therefore vary during the sealed displacement of the piston within the feed chamber, as a function of the position of the plate of said piston, which leads the flow orifice to open alternately in one or other of these volumes depending on the position of the piston plate within the feed chamber.
    According to the invention, the races of the piston and, therefore, of the slideway secured to the latter and of the integral dispensing nozzle thereof are defined so that the dispensing nozzle is in its deployed position when the orifice of flow opens into the downstream volume of the feed chamber, and so that the dispensing nozzle is in its rest position when the flow orifice opens into the upstream volume of the feed chamber. Advantageously, a return means in position, and in particular a spring placed between the piston and the slide, is used to return the dispensing nozzle to its rest position. Other features, details and advantages of the invention, as well as the operation of the device according to the invention will emerge more clearly on reading the description given below as an indication in relation to drawings in which: FIG. 1 is a general perspective view of a device according to the invention, in a first position; FIG. 2 is a view, in a similar perspective, of the device of FIG. 1, in a second position; FIG. 3 is a perspective view of the device of the invention in the second position illustrated in FIG. 2, at a different angle; FIG. 4 is a schematic sectional view of a part of the device according to the invention; and FIGS. 5 and 6 are perspective views of a device according to the invention and of the sensor to be cleaned, according to a rest position (FIG. 5) and a working position (FIG. 6).
    It should first be noted that the figures disclose the invention in detail to implement the latter, but that said figures can of course be used to better define the invention where appropriate.
    In the description which follows, the names "upstream" and "downstream" refer to the flow direction of the fluids in the cleaning device according to the invention and in the elements that compose it. Thus, the designation "upstream" refers to the side of the device or an element thereof by which the fluid or fluids are admitted, and the name "downstream" refers to the side of the device according to the invention or of one of the elements that compose it by which the fluid or fluids are distributed outside the device according to the invention or to another element thereof. It should be noted that, depending on the configuration of the various elements that make up the device according to the invention, the same element may be, at the same time, "downstream" or "upstream" of other elements of the device according to the invention. the invention. It should also be noted that, in what follows, the generic name "fluid" denotes indifferently, without this modifying the nature and / or the scope of the invention, either a single fluid, gaseous or liquid, or a mixture of fluids, gases and / or liquids.
    With reference to FIGS. 5 and 6, a cleaning device 100 is disposed in the vicinity of a sensor 102, fixed on a support 104 forming part of or attached to a bodywork element of a motor vehicle. The cleaning device is here arranged in an inclined disposition relative to the plane of the support, so that its free end, carrying an injection nozzle 4, when it is deployed (FIG. 6), is opposite the face to be cleaned 106 of the sensor, turned towards the outside of the vehicle, and that it is set back from this face to be cleaned 106 when it is retracted (FIG. 5).
    With reference to FIGS. 1 to 4, a device according to the invention comprises a single distribution nozzle 1, which communicates, upstream, with a first channel 2 and with a second fluid admission channel 3, advantageously parallel to one another. The first channel 2 and the second channel 3 are more precisely shown in FIG. 4. These two channels open through two distinct routing orifices, respectively for the first channel 2 and 30 for the second channel 3, in a distribution chamber. common 10 formed in the dispensing nozzle 1. Advantageously, the dispensing nozzle 1 is arranged so that the common distribution chamber 10 communicates, by a distribution channel not shown in the figures, with a dispensing orifice 11 schematically shown in Figure 4. Advantageously also, the dispensing nozzle 1 is substantially located in the extension of the first and second channels 2 and 3, in the direction of elongation common to these. According to the preferred embodiment of the invention illustrated by the figures, the first intake channel 2 and the second intake channel 3, each of which opens into the common distribution chamber 10, freely communicate with each other via this . It follows that a fluid admitted into any one of these inlet channels can freely propagate in the other inlet channel, via the common distribution chamber 10.
    According to the invention, one of the intake ducts (here the first intake duct 2, according to the embodiment represented by the figures), is equipped, at its upstream end, with a first intake nozzle 21 by which it communicates with a specific set of fluid supply which comprises, in particular, a supply cannula 4, a feed chamber 5, a piston 6 and a feed nozzle 7. These various elements and their respective roles will now be described. Advantageously, a non-return valve 22, visible in FIG. 4, is placed upstream of the first intake channel 2, between the latter and the first intake nozzle 21.
    According to a preferred embodiment of the invention, the supply cannula 4 is in the form of a tube made of a plastic material advantageously flexible, and its shape and dimensions are advantageously defined to optimize the bulk of the set of the device according to the invention. At its downstream end, the supply cannula 4 is connected to the first intake channel 2 by being received around the first intake nozzle 21, carried by the upstream end of the first intake channel 2. The cannula Feed 4 thus forms, at its downstream end, a sleeve around the first intake nozzle 21. Advantageously, the inner diameter of the feed cannula 4 is defined such that, once in place on the first nozzle of intake 21, this supply cannula can convey a fluid in the first inlet channel 2 without occurring leakage of the fluid at the junction between the first inlet nozzle 21 and said supply cannula 4. At its upstream end, the supply cannula 4 communicates with the supply chamber 5 through a flow port 50 pierced in a side wall of said supply chamber. Advantageously, the supply cannula 4 comprises means (not detailed in the figures) so that, in its zone of junction with the flow orifice 50, the fluid passage from the supply chamber 5 to the cannula d 4 supply is without leakage thereof.
    The supply chamber 5 extends upstream and downstream of the flow orifice 50, and accommodates the piston 6 therein. According to the invention, the piston 6 comprises a rod 61 and a plate 62, the rod 61 being substantially placed in the central position of the plate 62. Advantageously, the shape and outer dimensions of the plate 62 of the piston 6 are defined in such a way that the latter can slide within the supply chamber 5 in an adjusted manner. Specifically, the plate 62 has a shape complementary to an inner section of the feed chamber in a plane substantially perpendicular to the direction of the rod 61, and the outer dimensions of the plate 62 are slightly smaller than the inner dimensions of the feeding chamber 5 according to said section plane. In other words, the piston 6 is able to slide tightly within the feed chamber 5. According to various embodiments of the invention, additional sealing means (by way of nonlimiting example , one or more seals) can be arranged at the periphery of the plate 62 of the piston 6. In its sliding within the feed chamber 5, the piston 6 moves, in the direction of its rod 61, d a downstream end wall 51 to an upstream end wall 52 of this feed chamber 5. Advantageously, the shapes and dimensions of the downstream end 51 and upstream end walls 52 of the feed chamber 5 are similar to the shapes and dimensions of the plate 62 of the piston 6.
    When the piston 6 moves within the feed chamber 5, it defines, within it, an upstream volume 53 and a downstream volume 54, which vary as a function of the position of the plate 62 of the piston 6 to 5. More specifically, the downstream volume 54 is delimited by the side walls of the feed chamber 5, a downstream face 620 of the plate 62 of the piston 6, and the downstream end wall 51 of the feed chamber 5, and the upstream volume 53 is delimited by the side walls of the feed chamber 5, the upstream face 621, opposite to the downstream face 620, the plate 62 of the piston 6, and the wall of the upstream end 52 of the feed chamber 5.
    According to the invention, the feed nozzle 7 is arranged on the feed chamber 5 in such a manner that it opens, within said feed chamber 5, into a feed orifice 70 (not visible on the figures) located on the downstream end wall 51 thereof. According to the invention also, during the sliding of the piston 6 within the feed chamber 5, the flow orifice 50 opens alternately in the downstream volume 54 or in the upstream volume 53 of the feed chamber, according to the invention. the position of the plate 62 of the piston 6 within the latter.
    According to the invention, and as shown in the figures, the rod 61 of the piston 6 is arranged such that it passes through the upstream end wall 52 of the feed chamber 5. Advantageously, appropriate means are arranged to both on the piston rod 6 and on the upstream end wall 52 of the feed chamber 5 so that this crossing is sealed: by way of non-limiting example, a set of O-rings and complementary grooves can be arranged respectively on these two elements to allow the sliding of the piston rod 61 of the piston 6 through the upstream end wall 52 of the feed chamber 5. In addition, according to the invention, the piston rod 61 comprises means for solidahsation, at its upstream end, to a slide 8 secured to at least the dispensing nozzle 1, and here an assembly formed by this dispensing nozzle and the first 2 and second 3 admission channels . The slide 8 is therefore simultaneously secured to the two inlet channels 2, 3 and, hence, to the distribution nozzle 1 and to the piston 6 sliding inside the chamber. 5. It follows that any displacement of the piston 6 within the feed chamber 5 simultaneously causes, via the displacement of the slide 8, a displacement of the two intake channels and the dispensing nozzle 1 For this purpose, the slideway 8 comprises an attachment portion 8a at the end of the rod 61 and a slider 8b extending longitudinally in the direction of movement of the dispensing nozzle, this slide being mounted in a rail of corresponding shape (and not visible in the figures) arranged on a support plate 9 on which can be made integral with the supply chamber. The slider is secured to at least the dispensing nozzle, and here walls of the inlet channels 2 and 3. It may be provided in particular that the slideway and the inlet channels are made in a one-piece assembly. As will be detailed below, the displacement of the piston by the supply of the device in a first fluid, via the passage in the feed chamber 5, generates the displacement of the dispensing nozzle 1, so that the it can be said that the means for moving the dispensing nozzle comprise means common to the first fluid supply means of the first intake channel.
    Advantageously, the connection between the piston 6 and the slideway 8 comprises elastic return means in position of the piston, these means may for example consist of a return spring (not shown in the figures) placed between the downstream end wall 51 of the feed chamber 5 and the piston 6, so as to return the piston to the initial position in which the downstream volume is the lowest, which corresponds to the rest position of the intake nozzle, retracted to not be protruding from the device.
    According to the invention, the other intake channel (here the second intake channel 3, according to the embodiment illustrated by the figures) is directly connected to a second fluid supply device, not shown in FIGS. , via a second intake nozzle 31. Advantageously, a non-return valve 32 (visible in FIG. 4) is placed at the inlet of the second intake channel 3, upstream of this last, between it and the second inlet nozzle 31. It can be provided that the non-return valves can be known in the known way balls, valves, flapper or double leaf valves, or other types of valves known. It goes without saying that, just as the supply cannula 4 is advantageously made of a flexible material, the fluid supply device of the second intake channel 3 will advantageously be in its connection with the second intake nozzle 31, made of a material also flexible, so that, like the supply cannula 4 with the first inlet channel 2, accompany any displacement of the second intake channel 3 without generating fluid leakage.
    A first mode of operation of the device according to the invention, as just described and as illustrated by the figures, is as follows.
    In an initial position, illustrated more particularly in FIG. 1, the plate 62 of the piston 6 is substantially placed against the downstream end wall 51 of the feed chamber 5. In this position, the flow orifice 50 located in the upstream volume 63 of the feed chamber 5, defined above. When a first fluid is admitted into the feed chamber 5 through the feed nozzle 7 in the direction shown by the arrow Fl in the figures, the pressure exerted by this first fluid on the downstream face 620 of the plate 62 of the piston 6 causes it to move within the feed chamber 5, upstream thereof, in the direction represented by the arrow F in FIG. 2. In this displacement, the downstream volume 54, defined by the stroke of the piston 6 in said feed chamber 5, increases, to include the flow orifice 50, as shown in Figure 2. The device according to the invention is then in a second position, wherein the first fluid, admitted into the downstream volume 54 of the feed chamber 5, can flow out of the latter, into the feed cannula 4, via the flow orifice 50, feeding thus the first intake channel 2 and, hence, the common distribution chamber 10 and the dispensing orifice 11 of the dispensing nozzle 1.
    It should be noted that the displacement of the piston 6 induces, via the slide 8, a displacement of the intake channels 2, 3 and the distribution nozzle 1, in the same direction as that illustrated by the arrow F in FIG. 2, causing said dispensing nozzle 1 to assume a "deployed" position with respect to its initial position illustrated by FIG. 1. Advantageously, the return spring, placed between the piston 6 and the slideway 8, is chosen and arranged in such a way that it is compressed when the dispensing nozzle 1 is in this deployed position.
    Several operating situations can then occur. In a first operating situation of the device according to the invention, the admission of the first fluid by the feed nozzle 7 is continued, and a second fluid is admitted, in the direction illustrated by the arrow F2 in the figures, in the second intake channel 3, such that the respective inlet pressures of the first and second fluids are such that the second fluid mixes with the first fluid within the common distribution chamber 10. The device according to The invention then continuously delivers a mixture of the first and second fluids via the dispensing orifice 11.
    In a second operating situation, the admission of the first fluid by the feed nozzle 7 is stopped when a predefined quantity of this first fluid has been admitted. Under the effect, on the one hand, of the return spring 9 and, on the other hand, of the stopping of the supply of the first fluid by the feed nozzle 7, the piston 6 is then brought back to its initial position and is thus led to move downstream of the feed chamber 5, in the direction illustrated by the arrow F 'in Figure 2. In this movement, the plate 62 of the piston 6 flush, via the flow orifice 50, the first fluid contained in the downstream volume 54 that it defines in the feed chamber 5, to the supply cannula 4. This situation continues until the flow orifice 50 is, due to the displacement of the plate 62 of the piston 6, in the upstream volume 53 defined by the latter within said feed chamber 5. The flow of the first fluid in the feed cannula 4 is then stopped , the inner volume of the supply cannula 4 and that of the first intake channel 2 remaining, however, filled with first fluid. A second fluid is then admitted, in the direction illustrated by the arrow F2 in the figures, in the second intake channel 3. In this operating situation, however, the intake pressure of the second fluid within the second duct admission 3 is substantially greater than the pressure of the first fluid in the first inlet channel 2. This results in an overpressure of the second fluid relative to the first fluid. The first and second intake channels communicating with each other via the common distribution chamber 10, the second fluid will therefore preferably extend, in place of the first fluid, in the first intake channel 2, in which it will however remain confined thanks to the presence of a first non-return valve 21 placed upstream of said first intake channel 2. More specifically, the second fluid will initially expel the first fluid present in the first intake channel 2, leading to an increase in the distribution pressure of the latter via the dispensing orifice 11 of the dispensing nozzle 1 and then, in a second step, will extend in said first intake channel 2 as well as in the second admission channel 3 through which it is admitted in the device according to the invention.
    It should be noted that, in this operating situation, a downstream residual volume (not shown in the figures) remains filled with first fluid when the piston 6 is in a position such that the flow orifice 50 is in the volume upstream 53 defined in the same feed chamber by the stroke of said piston, thereby stopping the flow of said first fluid in the feed cannula 4. According to various embodiments, the flow orifice 50 may be placed in such a way that in such a way that this residual volume is minimal (in this case, the flow orifice 50 will be arranged as close as possible to the downstream end wall 51 of the feed chamber 5) or may be placed in such a way that the said residual volume constitutes advantageously a reserve "buffer" of first fluid. In all cases, the first fluid supply device (not shown in the figures) is advantageously equipped with non-return means to prevent any excess pressure of the first fluid within the supply chamber 5 and the cannula supply 4 during the overpressure admission of the second fluid.
    In the case where the second fluid is, for example, consisting of compressed air, the device according to the invention allows, in this operating situation, to perform a cleaning of the two intake channels, between two distribution sequences of the first fluid, thus avoiding any fouling, over time, of these intake channels.
    The device according to the invention then makes it possible sequentially to produce the distribution of a predefined quantity of a first fluid and a predefined quantity of a second fluid.
    Whatever the operating situation of the invention, in the first operating mode which has just been described, it is the first fluid supply of the feed chamber 5 which, by the stroke of the piston 6, It generates, causes the dispensing nozzle 1 to move to an extended position from which it is able to deliver the fluid or mixture of fluids that its common distribution chamber 10 contains.
    In a second alternative mode of operation, the displacement of the dispensing nozzle 1 in the deployed position can be governed by appropriate control means, for example according to particular driving situations. In this case, the displacement of the dispensing nozzle 1 in the extended position generates, via the slide 8, a displacement of the piston 6 and its plate 62 upstream of the feed chamber, which generates at in turn a slight depression in the feed chamber 5, leading to the suction of a predefined amount, depending on the stroke printed on the piston 6 by the displacement of the dispensing nozzle 1, first fluid. The operation of the device according to the invention then occurs in a manner similar to the first mode of operation explained above.
    In any case, the device according to the invention therefore allows, according to different operating situations, either to dispense a fluid or a mixture of fluids for cleaning sensors of a motor vehicle, or to distribute, in a predefined sequential manner, alternatively a first or a second fluid, or a mixture of these two fluids.
    The device according to the invention thus finds a particularly advantageous application in the field targeted by the invention, since it allows, in the same sequence of operation, to perform both a cleaning and a drying of a sensor of a driving assistance system. A preferred application is to provide that the first fluid is cleaning liquid, so that it exits through the dispensing nozzle to clean a face of the sensor, for example a camera lens, while the nozzle has been brought into position. working, facing the lens, by the action of the same cleaning liquid, and to provide that the second fluid is air, which is injected into the device after the passage of the cleaning liquid in the injection nozzle to purge the residual liquid in the device, and avoid the possibility of frost, and / or to come to dry the cleaned lens. The invention therefore advantageously extends to such a sensor cleaning device for the purpose of assisting the driving of a motor vehicle, insofar as it comprises a cleaning device such as it has just been used. be described and as illustrated by the figures. It should be noted, however, that the invention is not limited to the modes and configurations described and illustrated by the present document, but that it extends to all modes and / or equivalent configurations and to any technically operating combination of such modes and configurations. / or configurations. By way of example, a heating device can be provided upstream of the cleaning device so that the fluids conveyed and selectively distributed are hot fluids to facilitate the subsequent drying of the cleaned face of the sensor and to prevent the formation of ice on the surface. inside the cleaning device.
    权利要求:
    Claims (14)
    [1" id="c-fr-0001]
    1. Device for cleaning a sensor of a motor vehicle, characterized in that it comprises means of simultaneous or sequential distribution, by a dispensing orifice (11) arranged in a dispensing nozzle (1), a first fluid and / or a second fluid conveyed separately, respectively, by a first inlet channel (2) and / or a second inlet channel (3) to said distribution nozzle (1), in that it also comprises means for moving said dispensing nozzle (1) between a rest position and an extended position, and in that said means for displacing the dispensing nozzle (1) comprise means common with the first fluid supply means of the first intake channel (2).
    [2" id="c-fr-0002]
    2. Device according to claim 1, characterized in that said common means comprise at least one piston (6) movable in displacement by the pressure exerted by the first fluid and whose stem (61) associated has an end connected to the nozzle of distribution (1).
    [3" id="c-fr-0003]
    3. Device according to the preceding claim, characterized in that the first fluid supply means of the first inlet channel (2) comprises a supply chamber (5) in which is able to slide said piston ( 6), one end of said rod (61) is secured to a slide (8) itself integral with at least the dispensing nozzle (1), so that any displacement of the slide (8) generated by a displacement of the piston (6) causes a displacement of said dispensing nozzle.
    [4" id="c-fr-0004]
    4. Device according to one of the preceding claims, characterized in that the first (2) and second (3) intake channels are integral in displacement of the dispensing nozzle (1), so that the displacement means the nozzle displaces the assembly formed by the first intake channel (2), the second intake channel (3), and the dispensing nozzle (1).
    [5" id="c-fr-0005]
    5. Device according to one of the preceding claims, characterized in that it comprises two separate fluid inlets for the first fluid supply of the first inlet channel (2) and the second fluid supply of the second channel d admission (3), the first fluid supply of the first intake channel being connected to the supply chamber (5).
    [6" id="c-fr-0006]
    6. Device according to the preceding claim, characterized in that the first fluid supply means of the first inlet channel (2) comprises a feed nozzle (7) opening into the feed chamber (5) and a a flow port (50) in a wall of said supply chamber (5), through which the first fluid can flow to the first inlet channel (2).
    [7" id="c-fr-0007]
    7. Device according to the preceding claim, characterized in that the flow orifice (50) is placed in such a way that it opens alternately into a downstream volume (54) of the feed chamber (5), in which the first fluid is admitted through the feed nozzle (7), or into an upstream volume (53) of said feed chamber (5), free of first fluid, depending on the position of a tray (62). ) of the piston (6) during the sealed movement of said piston (6) within said feed chamber (5).
    [8" id="c-fr-0008]
    8. Device according to the preceding claim, characterized in that the stroke of the piston (6) and the slide (8) integral with the latter and the dispensing nozzle (1) are defined so that the dispensing nozzle (1) in its extended position when the outlet (50) opens into the downstream volume (54) of the supply chamber (5) and for the dispensing nozzle (1) to be in its rest position when the the flow orifice (50) opens into the upstream volume (53) of the feed chamber (5).
    [9" id="c-fr-0009]
    9. Device according to one of the preceding claims, characterized in that the dispensing nozzle (1) is movable in translation.
    [10" id="c-fr-0010]
    10. Device according to the preceding claim, characterized in that the dispensing nozzle (1) is movable in translation along an axis parallel to the elongation direction of the first (2) and second (3) distribution channels.
    [11" id="c-fr-0011]
    11. Device according to one of the preceding claims, characterized in that the first inlet channel (2) and the second inlet channel (3) are parallel to each other, and in that the dispensing nozzle (1) extends in the extension of these first and second intake channels (2, 3).
    [12" id="c-fr-0012]
    12. Device according to one of the preceding claims, characterized in that the first inlet channel (2) and the second inlet channel (3) communicate with each other via a common distribution chamber (10). ) in which they open respectively.
    [13" id="c-fr-0013]
    13. Device according to one of the preceding claims, characterized in that the first intake channel (2) and the second intake channel (3) are respectively provided at their end by which, respectively, the first and second fluids are admitted within them, a first non-return valve (21) and a second non-return valve (31).
    [14" id="c-fr-0014]
    14. Device according to one of the preceding claims, in combination with at least claim 2, characterized in that it comprises return means in position of the piston (6).
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3121071B1|2019-01-30|Device for cleaning a sensor for a motor vehicle
    EP3121070B1|2018-06-06|Sensor cleaning device for a motor vehicle
    EP3006279B1|2019-05-01|Device for cleaning a driving assistance camera of a motor vehicle
    EP3300971B1|2019-07-24|Cleaning device intended to spray at least one fluid towards a surface to be cleaned of a motor vehicle
    EP2490823B1|2014-12-17|Dispensing head for a fluid dispenser
    FR3056520B1|2019-08-09|DEVICE FOR CLEANING AN OPTICAL SENSOR OF AN OPTICAL DETECTION SYSTEM FOR A MOTOR VEHICLE
    EP3519262B1|2021-06-16|Device for cleaning an optical sensor of an optical detection system for a motor vehicle
    EP2058191B1|2010-10-13|Master cylinder of a vehicle connected to a braking device
    EP3519259B1|2021-12-01|Cleaning device intended for spraying at least one fluid onto a surface to be cleaned of a motor vehicle
    FR3036389B1|2019-08-23|METHOD AND DEVICE FOR FILLING THE RESERVOIR.
    FR3056515B1|2019-07-12|DEVICE FOR CLEANING AN OUTER SURFACE OF A SENSOR OF A MOTOR VEHICLE
    WO2019238764A1|2019-12-19|Telescopic cleaning device for motor vehicle
    WO2015001274A1|2015-01-08|Fluid or powdery product dispensing device
    EP1893341B1|2008-11-12|Device and installation for spraying coating product comprising a reservoir
    FR2903949A1|2008-01-25|DEVICE FOR WASHING A TRANSPARENT OR REFLECTING SURFACE, IN PARTICULAR THE ICE OF A PROJECTOR OF A MOTOR VEHICLE.
    FR3068087A1|2018-12-28|SYSTEM FOR COMPRESSING A GAS FOR DRYING AT LEAST ONE SENSOR OF A MOTOR VEHICLE
    FR3065380B1|2019-06-21|TELESCOPIC CLEANING DEVICE
    FR2838110A1|2003-10-10|FLUID PRODUCT DISPENSING DEVICE
    FR3056517A1|2018-03-30|CLEANING DEVICE FOR PROJECTING AT LEAST ONE FLUID TO A CLEANING SURFACE OF A MOTOR VEHICLE, SUCH AS AN OPTICAL SURFACE OF A SENSOR OF AN OPTICAL DETECTION SYSTEM
    FR2975021A1|2012-11-16|PUMP FOR DOSING AND DISPENSING A LIQUID OR VISCOUS PRODUCT
    FR2893679A1|2007-05-25|VOLUMETRIC PUMPING DEVICE COMPRISING A DISTRIBUTION MEMBER WITHOUT JOINT
    FR2848961A1|2004-06-25|Clutch master cylinder for vehicle e.g. automobile, has secondary tight joint cutting communication between tube and reservoir and backlash device disposed in tube by fixing cylinder surface to cover joint
    FR2887473A1|2006-12-29|APPARATUS FOR DISASSEMBLING A PISTON, ITS USE AND INSTALLATION OF PROJECTION OF COATING PRODUCT COMPRISING SUCH AN APPARATUS
    同族专利:
    公开号 | 公开日
    RU2016129924A|2018-01-25|
    EP3121071B1|2019-01-30|
    US20170021809A1|2017-01-26|
    JP6815776B2|2021-01-20|
    CN106809175A|2017-06-09|
    US10457253B2|2019-10-29|
    KR20170012125A|2017-02-02|
    CN106809175B|2020-06-23|
    FR3039114B1|2017-07-28|
    EP3121071A1|2017-01-25|
    JP2017024713A|2017-02-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20150138357A1|2011-03-10|2015-05-21|Alan Scot Romack|Integrated Automotive System, Pop Up Nozzle Assembly and Remote Control Method for Cleaning a Wide Angle Image Sensors Exterior Surface|
    US20130048036A1|2011-08-29|2013-02-28|Raytheon Company|Aperture Cleaning System and Methods of Use|
    US20150151722A1|2012-07-11|2015-06-04|Nissan Motor Co., Ltd.|Cleaning device for vehicle-mounted camera|
    US5657929A|1995-07-28|1997-08-19|Sprague Controls, Inc.|Air-liquid system for cleaning vehicle headlight lens and similar surfaces|
    DE502008000539D1|2008-06-24|2010-05-20|Smr Patents Sarl|Optical system and method for detecting optical obscuration in a vehicle|
    FR2957574B1|2010-03-16|2012-03-16|Valeo Systemes Dessuyage|CONTROLLING A WINDSCREEN SYSTEM ASSOCIATED WITH A WIPING SYSTEM FOR A MOTOR VEHICLE|
    WO2014010579A1|2012-07-11|2014-01-16|日産自動車株式会社|Vehicle-mounted-camera cleaning device|
    DE102012219199A1|2012-10-22|2014-04-24|Continental Teves Ag & Co. Ohg|Beam insert for disk washing nozzle for applying water jet from water pressure source on disk of vehicle, has channel manufactured by utilizing manufacturing process, and utilization tool locally engaged at wall of channel at base body|FR3048664B1|2016-03-14|2018-04-13|Valeo Systemes D'essuyage|DEVICE FOR CLEANING AN OPTICAL DETECTION SYSTEM FOR A MOTOR VEHICLE|
    CN108602491A|2016-03-31|2018-09-28|株式会社电装|Vehicle-mounted optical sensor cleaning device|
    FR3056518B1|2016-09-28|2018-10-26|Valeo Systemes D'essuyage|DEVICE FOR CLEANING AN OPTICAL SENSOR OF AN OPTICAL DETECTION SYSTEM FOR A MOTOR VEHICLE|
    FR3056516A1|2016-09-28|2018-03-30|Valeo Systemes D'essuyage|CLEANING DEVICE FOR PROJECTING AT LEAST ONE FLUID TO A CLEANING SURFACE OF A MOTOR VEHICLE|
    EP3318452A1|2016-11-07|2018-05-09|Fico Transpar, S.A.|Fluid-ejection device|
    FR3065380B1|2017-04-25|2019-06-21|Valeo Systemes D'essuyage|TELESCOPIC CLEANING DEVICE|
    US11142170B2|2017-06-07|2021-10-12|Ford Global Technologies, Llc|Pop-up washer nozzle with defrost feature|
    FR3068087B1|2017-06-21|2020-01-03|Valeo Systemes D'essuyage|GAS COMPRESSION SYSTEM FOR DRYING AT LEAST ONE MOTOR VEHICLE SENSOR|
    US10807568B2|2017-08-28|2020-10-20|Aisin Seiki Kabushiki Kaisha|Cleaning apparatus|
    JP6929521B2|2017-10-20|2021-09-01|株式会社アイシン|Cleaning equipment|
    US10409055B2|2017-11-30|2019-09-10|Veoneer Us, Inc.|Self-cleaning vehicle camera assemblies|
    CN108657132A|2018-03-23|2018-10-16|芜湖捷欧汽车部件有限公司|A kind of new automobile water sprager|
    CN109969140A|2019-04-30|2019-07-05|奇瑞汽车股份有限公司|Cleaning device and cleaning method|
    法律状态:
    2016-07-29| PLFP| Fee payment|Year of fee payment: 2 |
    2017-01-27| PLSC| Search report ready|Effective date: 20170127 |
    2017-07-31| PLFP| Fee payment|Year of fee payment: 3 |
    2018-07-27| PLFP| Fee payment|Year of fee payment: 4 |
    2019-07-31| PLFP| Fee payment|Year of fee payment: 5 |
    2020-07-31| PLFP| Fee payment|Year of fee payment: 6 |
    2021-07-29| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1556960A|FR3039114B1|2015-07-22|2015-07-22|DEVICE FOR CLEANING A SENSOR FOR A MOTOR VEHICLE|FR1556960A| FR3039114B1|2015-07-22|2015-07-22|DEVICE FOR CLEANING A SENSOR FOR A MOTOR VEHICLE|
    US15/214,639| US10457253B2|2015-07-22|2016-07-20|Device for cleaning a sensor for a motor vehicle|
    RU2016129924A| RU2016129924A|2015-07-22|2016-07-20|CAR MONITORING CLEANING DEVICE|
    EP16180476.0A| EP3121071B1|2015-07-22|2016-07-21|Device for cleaning a sensor for a motor vehicle|
    JP2016143485A| JP6815776B2|2015-07-22|2016-07-21|A device for cleaning automotive sensors|
    CN201610888416.0A| CN106809175B|2015-07-22|2016-07-22|Device for cleaning a sensor of a motor vehicle|
    KR1020160093370A| KR20170012125A|2015-07-22|2016-07-22|Device for cleaning a sensor for a motor vehicle|
    [返回顶部]