Spray nozzle of a spraying device

Abstract

The present invention relates to a spray nozzle (10) of a device (1) for spraying a cleaning fluid, the spray nozzle (10) being intended to be attached to a main body (6) of the spraying device (1) which at least partially defines a duct (8) for conveying the cleaning fluid, characterized in that the spray nozzle (10) comprises at least one channel (14) configured to guide the flow of the cleaning fluid toward a spray outlet for the cleaning fluid, the spray nozzle (10) further comprising a wall forming a deflector (16) arranged facing the spray outlet of the channel (14), the spray nozzle (10) being formed in a single piece.

Description

Spray nozzle of a spraying device

[0001] The present invention relates to the field of cleaning systems for vehicle detection devices, and more particularly relates to a cleaning device projecting cleaning liquid onto a detection surface of a detection device.

[0002] In recent years, many devices have been added to the latest vehicle models. Among them, some devices operate via detection devices, such as autonomous driving systems. These include a plurality of detection devices such as cameras, radars, LIDARs (light detection and ranging) or infrared wave sensors, for example. Such detection devices generally include a detection surface through which the waves emitted by said detection device are emitted towards the external environment of the vehicle on which the autonomous driving system is installed and through which waves pass back from the external environment. This detection surface is generally optically neutral and must be clean so as not to disturb the signals emitted or received by the detection device.

[0003] Systems for cleaning detection devices generally comprise at least one device for projecting a cleaning fluid installed on the detection device and capable of projecting cleaning fluid against the detection surface thereof. Furthermore, the cleaning system may comprise, alternatively or in a complementary manner, a circuit capable of guiding an air flow towards the detection surface.

[0004] The cleaning fluid projection device is arranged close to the detection surface of one of the detection devices in order to optimize the cleaning of said detection surface. It is known that such projection devices comprise at least two elements: a main body and a projection nozzle. The projection nozzle and the main body generally participate in delimiting a channel through which the cleaning fluid circulates towards an outlet orifice. The main body further comprises a deflector guiding the cleaning fluid against the detection surface. More particularly, the cleaning fluid is projected from the outlet orifice of the channel against the deflector so as to generate a flat jet of cleaning fluid towards the detection surface.

[0005] It is essential to know how to ensure very precise positioning of the parts in relation to each other, to be certain that the deflector is positioned correctly, in relation to the channel on the one hand and in relation to the surface to be cleaned. It is under this condition that we can have a jet with the angle of impact on the surface to be cleaned in accordance with what is desired and with an opening angle as desired.

[0006] Furthermore, the projection of the cleaning fluid at high pressure against the deflector may cause said deflector to move relative to its initial position and cause a gap between the main body and the projection nozzle, such that cleaning fluid may infiltrate this gap as the projection device is used, in particular by capillarity. The cleaning fluid thus infiltrated may cause degradation of the main body and / or the projection nozzle, and more particularly, degradation of the attachment between the main body and the projection nozzle.

[0007] The present invention proposes an alternative solution to what currently exists by proposing a projection nozzle, forming part of a cleaning fluid projection device, which makes it possible to project a jet repeatedly and reliably onto the surface to be cleaned in accordance with what is theoretically calculated, while also avoiding infiltration of cleaning fluid at a weld zone between the main body and said projection nozzle.

[0008] In this context, the main subject of the present invention is a projection nozzle of a device for projecting a cleaning fluid, the projection nozzle being intended to be fixed to a main body of the projection device delimiting at least in part a conduit for conveying the cleaning fluid, characterized in that the projection nozzle comprises at least one channel configured to guide the circulation of the cleaning fluid towards a projection outlet of the cleaning fluid, the projection nozzle further comprising a wall forming a deflector arranged opposite the projection outlet of the channel, the projection nozzle being formed in one piece.

[0009] According to the invention, the deflector and the channel thus constitute a single part, the projection nozzle. More particularly, the projection nozzle is formed by a single-piece element, that is to say that the separation of one of the constituent elements of the projection nozzle from the other elements would result in the destruction of one or other of the constituent elements of said projection nozzle.

[0010] In this way, the technical problem mentioned above is solved since the integration of the channel and the deflector in the same part makes it possible to ignore the assembly clearances between the projection nozzle and the assembly body in order to obtain precise positioning between the channel and the deflector.

[0011] According to a preferred optional feature of the invention, the projection nozzle further comprises a fixing system configured to secure the projection nozzle to the main body of the projection device.

[0012] According to an optional characteristic of the invention, the channel extends along a main direction of extension, having an inlet orifice and an outlet orifice, the deflector comprising a wall having a projection face opposite the outlet orifice of the channel, the projection face extending mainly in a plane intersecting the main direction of extension of the channel.

[0013] According to another optional feature of the invention, the face from which the channel opens extends in a plane secant to the plane in which a face of the deflector onto which the cleaning fluid is projected is inscribed. This inclination of the face from which the channel opens opens the projection angle of the cleaning fluid projected from the deflector.

[0014] According to another optional characteristic of the invention, the projection nozzle comprises at least one synthetic material, the projection nozzle being produced by material injection.

[0015] Advantageously, the synthetic material is polypropylene, polyurethane, polyamide, polycarbonate, polyoxymethylene, PVC, or ABS.

[0016] According to another optional feature of the invention, the projection nozzle comprises several channels arranged next to each other along a direction secant to their main direction of extension, the channels each comprising an outlet orifice, the deflector extending opposite each of the outlet orifices of the channels. This allows the production of a projection device in the form of a ramp, particularly suitable for cleaning detection devices with a large detection surface, such as a LIDAR for example.

[0017] According to another optional characteristic of the invention, the deflector comprises a single wall extending opposite each of the outlet orifices of the channels.

[0018] According to another optional feature of the invention, the deflector comprises several walls, each of the walls being arranged opposite one of the outlet orifices of the channels. This particular configuration makes it possible to generate different projection jets according to at least two different projection angles.

[0019] According to another optional characteristic of the invention, the projection nozzle has an internal face configured to face the main body and an opposite external face onto which a cleaning fluid projection zone opens, the fixing system being arranged on the internal face. According to another optional characteristic of the invention, the projection zone is delimited by the deflector and by an inclined plane into which the outlet orifice of the channel opens opposite the deflector.

[0020] According to another optional characteristic of the invention, the projection nozzle extends along a main elongation direction, having a projection end where at least the deflector and the outlet orifice of the channel are arranged and an opposite connecting end, the projection nozzle comprising a snap-fastening element constituting the fixing system and arranged at the connecting end.

[0021] The present invention also relates to a projection device of a cleaning fluid distribution system, the projection device comprising a main body participating in delimiting a cleaning fluid conveying conduit and a projection nozzle characterized according to any one of the preceding characteristics, the channel communicating fluidically with the conveying conduit.

[0022] According to another optional characteristic of the invention, the projection device comprises a reservoir of the cleaning fluid arranged between the conveying conduit and the channel of the projection nozzle, the projection nozzle participating at least in part in delimiting the reservoir.

[0023] According to another optional feature of the invention, the reservoir is delimited both by the main body and by the projection nozzle.

[0024] According to another optional characteristic of the invention, the main body comprises a housing for the projection nozzle, the deflector having an internal surface facing the outlet orifice of the channel and an external surface facing a wall of the main body participating in delimiting the housing.

[0025] In this context, it is notable that the projection of the cleaning fluid from the channel against the deflector can cause the deflector to move relative to its initial position, but by pushing it towards a wall of the main body participating in delimiting the housing. The projection of the cleaning fluid then has the effect of reducing a possible gap between the projection nozzle and the main body, which has the effect of preventing cleaning fluid from infiltrating between the projection nozzle and the main body, avoiding their premature degradation.

[0026] According to another optional characteristic of the invention, the fixing system is a weld between the internal face of the projection nozzle and the main body.

[0027] According to another optional feature of the invention, the welding is an ultrasonic welding.

[0028] According to another optional characteristic of the invention, the weld is inscribed in the same plane.

[0029] According to another optional characteristic of the invention, the weld extends over the periphery of the internal face of the projection nozzle.

[0030] According to another optional characteristic of the invention, the projection device comprises means for positioning the projection nozzle on the main body, these positioning means comprising at least one rib and one groove cooperating with the rib, the rib and the groove being arranged one on the projection nozzle, the other on the main body.

[0031] According to another optional feature of the invention, the welding between the projection nozzle and the main body is carried out in the vicinity of the positioning means. By in the vicinity of the positioning means, it can for example be understood that the welding is carried out on the same surface as that on which the rib is made or that on which the groove is made.

[0032] The present invention finally relates to a system for distributing a cleaning fluid comprising at least one cleaning fluid reservoir, a cleaning fluid projection device characterized according to any one of the preceding characteristics and a cleaning fluid conveying tube fluidically connecting the cleaning fluid reservoir to the projection nozzle.

[0033] Other characteristics, details and advantages of the invention will emerge more clearly on reading the description which follows on the one hand, and several examples of embodiment given for informational and non-limiting purposes with reference to the appended schematic drawings on the other hand, in which:

[0034] is a perspective representation of a projection device comprising a projection nozzle according to the invention;

[0035] is a longitudinal section of a projection nozzle according to a first embodiment of the invention; and

[0036] is a longitudinal section of a projection nozzle according to a second embodiment of the invention.

[0037] DETAILED DESCRIPTION

[0038] The features, variants and different embodiments of the invention may be combined with each other in various combinations, provided that they are not incompatible or mutually exclusive. In particular, variants of the invention may be conceived comprising only a selection of features described below in isolation from the other features described, if this selection of features is sufficient to confer a technical advantage and / or to differentiate the invention from the state of the prior art.

[0039] In the figures, elements common to several figures retain the same reference.

[0040] In addition, the terms "upstream" and "downstream" used in the remainder of the description refer to the direction of circulation of a cleaning fluid through the projection device.

[0041] Illustrates a projection device 1 of a system for dispensing a cleaning fluid, the projection device 1 being configured to project a jet 4 of cleaning fluid against a detection surface 2 of a detection device, as seen in FIGS. 2 or 3.

[0042] More particularly, the detection device comprises on the one hand a main member comprising for example a sensor, and on the other hand the detection surface 2 arranged between the sensor housed in the main member and the external environment of the detection device. The sensor of the detection device may be for example a camera, a radar or even a LIDAR, this list not being exhaustive. This type of detection device emits and / or receives electromagnetic waves towards the external environment of the detection device to detect one or more objects present in this environment. The detection surface 2 is designed so that the electromagnetic waves emitted and / or received by the sensor can pass through said detection surface 2 without being deflected or modified.

[0043] The projection device 1, intended to be connected to a cleaning fluid distribution network not shown here, is configured to project the cleaning fluid in the form of a jet 4 against the detection surface 2 of the detection device, with a determined angle of attack on the detection surface, the jet possibly being a flat jet extending mainly in a plane. The projection of the cleaning fluid by the projection device 1 thus makes it possible to clean the detection surface 2 of all the elements arranged on the latter, whether dirt or drops, which are likely to hinder the acquisition of images.

[0044] For this purpose and as visible in Figures 2 and 3, the projection device 1 more particularly comprises a main body 6 participating in delimiting a conduit 8 for conveying the cleaning fluid and a projection nozzle 10 according to the invention. The main body 6 is configured to guide the cleaning fluid from the cleaning fluid distribution network to the projection nozzle 10, the latter being configured to project the cleaning fluid towards the detection surface 2 of the detection device. The projection nozzle 10 comprises a fixing system 12 to the main body 6 so as to make the projection nozzle 10 integral with the main body 6.

[0045] According to the invention, the projection nozzle 10 comprises at least one channel 14 configured to guide the circulation of the cleaning fluid towards an outlet orifice 20 of the cleaning fluid, the projection nozzle 10 further comprising a wall forming a deflector 16 arranged opposite the projection outlet of the channel 14, the projection nozzle 10 being formed in one piece. In other words, the deflector 16 and the channel 14 constitute the projection nozzle 10. More particularly, the projection nozzle 10 is formed by a single-piece element, that is to say that the separation of one of the constituent elements of the projection nozzle 10 from the other elements would result in the destruction of one or other of the constituent elements of said projection nozzle 10, and this single-piece element is produced so as to house within it a deflector and a channel with an outlet orifice arranged opposite the deflector.

[0046] As can be seen in the illustrated example, the channel 14 extends along a main extension direction, having an inlet orifice 18 and the outlet orifice 20, the deflector 16 comprising a wall having a projection face 22 opposite the outlet orifice 20 of the channel 14, the projection face 22 extending mainly in a plane intersecting the main extension direction of the channel 14. It is in particular the control of the value of the angle between the projection face and the main extension direction of the channel 14, combined with the control of the distance between the projection face 22 and the outlet orifice 20, which makes it possible to ensure that the jet 4 conforms to the desired jet to ensure the cleaning of the detection surface 2 of the detection device.The fact that, as mentioned previously, the channel 14 and the deflector 16 are made in a single piece makes it possible to limit the impact of manufacturing clearances and to not take into account assembly clearances to ensure the correct position of the deflector 16 relative to the channel and its outlet orifice 20.

[0047] The channel 14 fluidly communicates with the delivery conduit 8, so that the cleaning fluid circulating in the delivery conduit 8 also circulates through the channel 14 to be projected towards the deflector 16.

[0048] Furthermore, preferably, the projection nozzle 10 comprises at least one synthetic material, the projection nozzle 10 being produced by material injection. However, a projection nozzle 10 produced by additive manufacturing would be conceivable and would not depart from the scope of the invention.

[0049] Advantageously, the synthetic material is polypropylene, polyurethane, polyamide, polycarbonate, polyoxymethylene, PVC, or ABS.

[0050] A first embodiment of the projection device 1 will now be described with reference to the before describing a second embodiment of the projection device 1.

[0051] As illustrated in the, the main body 6 has an upper edge 24 and an opposite lower edge 26, the projection nozzle 10 being arranged on the lower edge 26 of said main body 6. The terms “upper” and “lower” are given here arbitrarily, and are not described to give a sense of positioning of the projection device 1 in space.

[0052] Advantageously, the main body 6 comprises a housing 28 for the projection nozzle 10 so as to retract the projection nozzle 10 and so that the latter does not protrude from the lower edge 26. According to a section of the projection device 1 seen in a plane parallel to a main elongation direction of the conveying duct 8 and substantially perpendicular to the upper edge 24 and lower edge 26, the housing 28 takes a generally rectangular shape, delimited by three walls of the lower edge 26 and open opposite the upper edge. As illustrated, the projection nozzle 10 has a shape complementary to that of the housing 28: a section of the projection nozzle 10 seen in a plane parallel to that mentioned previously has in this case a rectangular shape intended to cooperate with the rectangular-shaped housing 28 open opposite the upper edge 24.

[0053] Among the walls delimiting the housing 28, there is notably an end wall 30 which extends to one of the longitudinal ends of the main body 6. The end wall 30 thus forms a stop wall for the longitudinal movement of the projection nozzle 10 when the latter is arranged in the housing as illustrated in the. More particularly, the wall of the projection nozzle forming the deflector 16 has an external face 46 opposite this end wall 30, the external face 46 being the face opposite the projection face 22 previously mentioned. It is understood that the external face 46 of the deflector 16, when the deflector 16 is moved under the force exerted by the projection of the cleaning fluid, bears against the end wall 30.This has the effect of limiting the deformation of said deflector 16 but also of ensuring that the deflector is pressed against the end wall when fluid is sprayed, and thus avoiding the risk of drops of fluid being inserted by capillarity between the spray nozzle 10 and the main body 6.

[0054] The projection device 1 comprises a reservoir 32 of the cleaning fluid arranged between the conveying duct 8 and the channel 14 of the projection nozzle 10, so that the reservoir forms a buffer zone between the conveying duct of the main body and the channel of the projection nozzle. The reservoir 32 thus has the function of storing at least partially a portion of the cleaning fluid arriving from the conveying duct 8 before said cleaning fluid circulates through the channel 14.

[0055] The reservoir 32 is delimited both by the main body 6 and by the projection nozzle 10. The reservoir 32 is more particularly produced by a cavity formed in the lower edge 26 of the main body, at the level of the housing and by a bowl formed in the projection nozzle, arranged in the extension of the cavity when the projection nozzle 10 is fixed on the main body, as illustrated in the.

[0056] The projection nozzle 10 has an internal face 34, intended to be opposite the main body 6 and in which the bowl participating in forming the reservoir is hollowed out, and an opposite external face 36, intended to be turned towards the surface to be cleaned and in which a projection zone 38 of the cleaning fluid is hollowed out. The projection zone 38 consists of a clearance within the projection nozzle in which the cleaning fluid circulates from the outlet orifice 20 of the channel 14 towards the projection face 22 of the deflector then from the projection face towards the outside of the projection nozzle with the appropriate angle to be directed, if necessary in the form of a flat jet 4, towards the surface to be cleaned. It is understood that the fluid emerges from the projection nozzle 10 via the projection zone 38.

[0057] In this context, it is notable that the channel 14 of the projection nozzle 10, which according to the invention is fully defined within the projection nozzle 10, is arranged in the thickness of a wall of the projection nozzle, opening out on the side of its inlet orifice 18 into the bowl participating in forming the reservoir 32 and on the side of its outlet orifice 20 into the projection zone 38.

[0058] The projection zone 38 is delimited on the one hand by the deflector 16 and its projection face 22, and on the other hand by an inclined plane 40 into which the outlet orifice 20 of the channel 14 opens.

[0059] The inclined plane 40 extends in a plane intersecting the plane in which the projection face 22 of the deflector 16 is inscribed. This inclination of the face 40 from which the channel 14 opens opens the projection angle of the cleaning fluid projected from the deflector 16. The inclined plane 40 is oriented so that the longitudinal dimension of the projection zone increases as one approaches the external face 36 of the projection nozzle. An angle is formed between the plane in which the inclined plane 40 is inscribed and the plane in which the projection face 22 of the deflector 16 is inscribed, as illustrated in Figures 2 and 3. This angle is necessary in order to be able to direct the flat jet 4 of cleaning fluid against the detection surface 2 of the detection device without the flat jet being disturbed by the inclined plane 40.

[0060] The projection nozzle has on its internal face 34 a peripheral flank 42 surrounding the cavity forming part of the reservoir, this peripheral flank 42 being in contact with the main body 6 and in particular with a bottom wall 44 of the housing formed in the main body.

[0061] The wall forming the deflector 16 extends directly above the peripheral flank, at the longitudinal end of the projection nozzle intended to be opposite the end wall 30 of the main body, as mentioned previously.

[0062] The peripheral flank 42 allows in particular the implementation of the fixing system 12, as well as that of positioning means 48 of the projection nozzle 10 on the main body 6.

[0063] The positioning means 48 comprise a set of male / female members, and by way of example a pair formed by a rib and a groove cooperating with the rib, the male member and the female member being arranged one on the projection nozzle 10, the other on the main body 6. It is understood that the positioning means 48 make it possible to adjust the position of the projection nozzle 10 relative to the main body 6, when mounting the projection nozzle 10 on the main body 6. In the example illustrated here, the projection nozzle 10 carries a rib forming a male member capable of cooperating with a groove forming a female member carried by the main body 6.

[0064] The positioning means 48 may, as illustrated, be arranged on the peripheral flank 44, longitudinally on either side of the cavity participating in forming the reservoir 32. More particularly, the positioning means 48 are at least partly arranged on the projection nozzle 10 on the peripheral flank 44 directly above the deflector 16 so as to best ensure the position of the deflector relative to the end wall 30 of the main body 6.

[0065] According to the invention, the fixing system 12 is a weld between the projection nozzle 10 and the main body 6, and more particularly between the internal face 34 of the projection nozzle and the bottom wall 44 of the receiving housing formed in the main body 6. The weld is in particular carried out on the peripheral flank 44, over the entire periphery thereof, so that the weld is carried out entirely around the reservoir 32. Preferably, the weld is an ultrasonic weld. This weld here makes it possible to fix the projection nozzle 10 to the main body 6 by a mixture of material, thus preventing the projection nozzle 10 from being separated from the main body 6.

[0066] In addition, a weld between the projection nozzle 10 and the main body 6 tends to seal the conveying conduit 8 and / or the reservoir 32 from the external environment, preventing leaks of cleaning fluid at the junction zone between the projection nozzle 10 and the main body 6.

[0067] As illustrated here in the, the weld is inscribed in the same plane. It is understood that the internal face 34, and in particular the peripheral flank 44, on which the weld of the fixing system 12 is made, is inscribed in a plane which is parallel to the plane of the face of the main body 6 which is welded to said internal face 34 of the projection nozzle 10, that is to say here the bottom wall 44 of the housing 28.

[0068] In the example illustrated, the welding between the projection nozzle 10 and the main body 6 is carried out in the area of ​​the positioning means 48. It is understood here that once the projection nozzle 10 is mounted against the main body 6, and the rib of the positioning means 48 is arranged in the groove of the positioning means 48, the welding is carried out at the level of these positioning means 48. Carrying out the welding of the projection nozzle 10 and the main body 6 at the level of the positioning means 48 formed by male and female members cooperating with each other promotes the mixing of material between the projection nozzle 10 and the main body 6 and optimizes the resulting weld.

[0069] According to a particular embodiment not shown in the figures, the projection nozzle 10 comprises several channels 14 arranged next to each other along a direction secant to their main direction of extension, the channels 14 each comprising an outlet orifice 20 opening from an inclined plane opposite the deflector 16. It is understood here that the channels 14 form a projection ramp, producing several delayed or simultaneous projections of cleaning fluid against the deflector 16, these delayed or simultaneous projections of cleaning fluid then forming different flat protective jets 4.

[0070] This deflector 16 can just as easily be formed by a single wall extending opposite each of the outlet orifices 20 of the channels 14, or by several walls, each of the walls being arranged opposite one of the outlet orifices 20 of the channels 14. This latter configuration makes it possible to easily generate different projection angles of one or more of the projection jets produced by the ramp.

[0071] A second embodiment of the invention will now be described with reference to the. The elements common to the two embodiments will keep the same reference during the description of this second embodiment of the invention.

[0072] As illustrated in the, the projection nozzle 10 takes the form of a tip disposed at one end of the main body 6.

[0073] More particularly, the projection nozzle 10 extends along a main elongation direction, having a projection end 50 where at least the deflector 16 and the outlet orifice 20 of the channel 14 are arranged, and an opposite connecting end 52 configured to be connected to the main body.

[0074] The projection nozzle 10 comprises a snap-fastening element 54 constituting the fixing system 12 and arranged at the connecting end 52.

[0075] The projection nozzle 10 here comprises an annular wall delimiting at least in part the reservoir 32 and a housing of the main body 6. This annular wall is open at the connecting end 52 to receive the main body 6, and more particularly a connecting end 58 into which the conveying conduit 8 of the cleaning fluid opens.

[0076] The snap-fastening element 54 comprises, for example, an elastically deformable member installed at the connecting end 52 of the projection nozzle 10, the elastically deformable member being intended to cooperate with a rigid member 56 of the main body 6. Illustrates a step of mounting the projection nozzle 10 on the main body, just before the snap-fastening element 54 engages the rigid member 56, by translation along its main elongation direction.

[0077] It is understood here that the projection nozzle 10 successively has, along the main elongation direction, a connecting portion participating in delimiting the reservoir 32 and the housing of the main body 6, and a projection portion comprising the deflector 16 and the channel 14. In this way, the projection device according to the invention differs from what has been previously described in that the deflector 16 does not rest against a wall of the main body 6. However, in accordance with the invention, the projection nozzle forms a single-piece assembly comprising a projection zone 38, a channel 14 for supplying cleaning fluid to this projection zone, and a deflector delimiting the projection zone and against which the cleaning fluid is projected at the outlet of the channel 14.Here again, the grouping of all these elements in a single piece, fixed elsewhere on the main body, makes it possible to control the arrangement of the channel 14 in relation to the deflector, thus ensuring the correct positioning in relation to the deflector 16 of the outlet orifice 20 and of the inclined plane 40 in which the outlet orifice is located.

[0078] The invention thus achieves the aim it has set itself regardless of the embodiment described, by proposing a projection nozzle 10 comprising both a channel 14 capable of projecting a cleaning fluid and a deflector 16 against which the cleaning fluid is projected, with the projection nozzle 10 which is formed in one piece. This design makes it possible to ensure the correct position relative to each other of the elements participating in the orientation of the jet of fluid to be directed onto the surface to be cleaned, and it promotes the sealing of a projection device on which the projection nozzle is installed by preventing projections of cleaning fluid from being able to be inserted between constituent elements of the projection devices.

[0079] The present invention cannot, however, be limited to the means and configurations described and illustrated here and it also extends to any equivalent means and configuration as well as to any technically effective combination of such means.

Claims

Projection nozzle (10) of a device (1) for projecting a cleaning fluid, the projection nozzle (10) intended to be fixed to a main body (6) of the projection device (1) delimiting at least in part a conveying conduit (8) for the cleaning fluid, characterized in that the projection nozzle (10) comprises at least one channel (14) configured to guide the circulation of the cleaning fluid towards a projection outlet of the cleaning fluid, and a wall forming a deflector (16) arranged opposite the projection outlet of the channel (14), the projection nozzle (10) being formed in one piece. Projection nozzle (10) according to any one of the preceding claims, further comprising a fixing system (12) configured to make the projection nozzle (10) integral with the main body (6) of the projection device (1). A projection nozzle (10) according to any preceding claim, wherein the projection nozzle (10) is made by material injection. A spray nozzle (10) according to any preceding claim, comprising a plurality of channels (14) arranged next to each other along a direction secant to their main direction of extension, the channels (14) each comprising an outlet orifice (20), the deflector (16) extending opposite each of the outlet orifices (20) of the channels (14). Projection nozzle (10) according to any one of claims 2 to 4, having an internal face (34) configured to face the main body (6) and an opposite external face (36) onto which a projection zone (38) of the cleaning fluid opens, the fixing system (12) being arranged on the internal face (34). Projection nozzle (10) according to any one of claims 2 to 4, extending along a main elongation direction having a projection end (50) where at least the deflector (16) and the outlet orifice (20) of the channel (14) are arranged and an opposite connecting end (52), the projection nozzle (10) comprising a snap-fastening element (54) constituting the fixing system (12) and arranged at the connecting end (52). Projection device (1) of a cleaning fluid distribution system, the projection device (1) comprising a main body (6) participating in delimiting a conveying conduit (8) for the cleaning fluid and a projection nozzle (10) characterized according to any one of the preceding claims, the channel (14) communicating fluidically with the conveying conduit (8). Projection device (1) according to the preceding claim, comprising a reservoir (32) of the cleaning fluid arranged between the conveying conduit (8) and the channel (14) of the projection nozzle (10), the projection nozzle (10) participating at least in part in delimiting the reservoir (32). Projection device (1) according to any one of claims 7 or 8 in combination with claim 5, in which the main body (6) comprises a housing for the projection nozzle (10), the deflector (16) having an internal surface (22) facing the outlet orifice (20) of the channel (14) and an external surface (46) facing a wall of the main body (6) participating in delimiting the housing. Projection device (1) according to any one of claims 7 to 9 in combination with claim 5, in which the fixing system (12) is a weld between the internal face (34) of the projection nozzle (10) and the main body (6). Projection device (1) according to the preceding claim, in which the weld extends over the periphery of the internal face (34) of the projection nozzle (10). Projection device (1) according to any one of claims 7 to 11, comprising positioning means (48) for positioning the projection nozzle (10) on the main body (6), these positioning means (48) comprising at least one rib and one groove cooperating with the rib, the rib and the groove being arranged one on the projection nozzle (10), the other on the main body (6). System for distributing a cleaning fluid comprising at least one cleaning fluid reservoir, a device (1) for projecting the cleaning fluid characterized according to any one of claims 7 to 12 and a conduit (8) for conveying the cleaning fluid fluidically connecting the cleaning fluid reservoir to the projection nozzle (10).

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