Fluid spraying device for cleaning the surface of motor vehicles

Abstract

The present invention relates to a fluid spraying device (2) for a system for cleaning the surface (164) of a motor vehicle, the spraying device including a solenoid valve (3) configured to allow or prevent fluid from flowing to a spraying member (8), the solenoid valve including a hydraulic system (4) and an electromagnetic system (5), the hydraulic system (41) including at least one fluid distribution member (6) including at least one fluid inlet end (30), a circulation chamber (28), and a fluid outlet end (32) in fluid communication with the spraying member (8), the electromagnetic system (5) being configured to allow or prevent fluid from flowing through the circulation chamber (28), characterized in that the spraying member (8) includes at least one connecting pipe (92) and a spray nozzle (94), the connecting pipe (92) being directly fastened to the fluid outlet end (32).

Description

[0001] This invention belongs to the field of optical sensor systems for cleaning motor vehicles, and more particularly relates to a device, particularly equipped with a solenoid valve, incorporated in such a cleaning system for spraying cleaning fluid.

[0002] Whether to assist the driver during parking maneuvers or while driving in traffic with other vehicles, or to replace the driver in autonomous vehicles, modern vehicles are typically equipped with driver assistance systems. Each of these systems has at least one sensor that enables the identification of the vehicle's surroundings; this sensor can include, for example, but not limited to, cameras or radar.

[0003] Each sensor is configured to acquire data relating to the vehicle's surrounding environment and is exposed to various types of sprayed objects or dirt for this purpose, which may subsequently adversely affect the reliability of the acquired data. However, especially when these sensors are implemented within the scope of autonomous driving functions, regardless of the level of automation, the reliability of the acquired data is crucial for the safety of all road users.

[0004] In this context, sensors are typically equipped with cleaning facilities, which can take various forms, including systems for spraying cleaning fluid onto the optical surfaces of the sensor.

[0005] These cleaning fluid spraying systems have: at least one body arranged near a sensor for directing fluid onto an optical surface; and a conduit through which the cleaning fluid travels from a storage container to the body. These spraying systems may also have other components connected to electronic control circuitry, particularly solenoid valves, which, for example, allow the cleaning fluid to either prevent or allow it to enter the body for spraying onto the optical surface.

[0006] The numerous optical sensors installed in a vehicle (each of which is designed to perform the proposed driver assistance function in the vehicle) require multiple fluid spraying devices, each associated with a sensor and having a fluid spraying component pointing towards the optical surface of the sensor to be cleaned.

[0007] It is known that each of these spraying devices is equipped with a solenoid valve that is managed to allow or prevent cleaning fluid from entering in the direction of the corresponding spraying component. It should be understood that, in order to save cleaning fluid, it is desirable to be able to clean a given dirty sensor specifically, and thus not clean the remaining, clean sensors.

[0008] More specifically, in the prior art, it is known to arrange a group of solenoid valves adjacent to each other near the electronic control unit, so that these solenoid valves can be managed, and a connection is provided between each solenoid valve and the corresponding fluid spraying component via a flexible conduit that delivers cleaning fluid from the solenoid valve.

[0009] This invention falls into this category and aims to improve the performance of such an architecture, particularly by efficiently achieving a response time at the outlet of the spraying component between the activation of a solenoid valve and the spraying or stopping of spraying, the activation of which allows or prevents the flow of cleaning fluid toward the spraying component. It should be understood that this reduced response time allows for further improvement in the quality of information acquired by the sensors.

[0010] Therefore, the main subject of the present invention is a fluid spraying device for a system for cleaning the surface of a motor vehicle, the spraying device including a solenoid valve configured to allow or prevent fluid from flowing toward a spraying member, the solenoid valve having a hydraulic system and an electromagnetic system, the hydraulic system including at least one fluid distribution member having at least one fluid inlet end, a circulation chamber, and a fluid outlet end in fluid communication with the spraying member, the electromagnetic system being configured to allow or prevent fluid from passing through the circulation chamber, characterized in that the spraying member includes at least one connecting pipe and a spray nozzle, the connecting pipe and the spray nozzle being integrally formed, the connecting pipe being directly fixed to the fluid outlet end.

[0011] In other words, the present invention proposes a spraying device unique in that it includes a solenoid valve to which the spraying component is directly fixed, without intermediate flexible conduits. In this way, the reaction time for implementing or preventing the spraying of cleaning fluid onto the surface to be cleaned is improved because the fluid allowed into the solenoid valve is located directly in the spraying component at the outlet of the solenoid valve, without needing to circulate within flexible conduits.

[0012] The solenoid valve enables control of the circulation of cleaning fluid within the cleaning system. The fluid circulates in the hydraulic system by passing through a fluid inlet, a circulation chamber, and a fluid outlet before entering the spraying component. The solenoid system can receive commands to either stop the circulation of fluid in the circulation chamber or allow such circulation to occur freely. To this end, the solenoid system includes components capable of receiving, processing, and causing mechanical actions to stop or allow fluid circulation.

[0013] The cleaning fluid can be any type of fluid, as long as it is capable of cleaning the surface it is sprayed onto, and the fluid can specifically include air, water, soapy water, or any other product commonly used for cleaning surfaces. Furthermore, the surface onto which the fluid is sprayed can in this case include various types of vehicle surfaces, and particularly mounted glass surfaces of sensor / transmitter optical surfaces, as well as optical surfaces such as those of optical transmitter or receiver devices.

[0014] The connecting pipe surrounds the fluid outlet end piece, on the one hand to allow the cleaning fluid to flow continuously toward the spray nozzle formed at the end of the spraying component, and on the other hand to allow the spraying component to be directly fixed to the solenoid valve without the need for inserting flexible pipes.

[0015] Distribution components and connecting pipes can be considered rigid bodies because these elements are either inelastically deformable or only slightly elastically deformable. Therefore, the advantage of these components is that, although they may be subjected to stress under standard operating conditions, they maintain their overall shape once the spraying device has been assembled. Specifically, "rigid connecting pipe" is understood to mean that the connecting pipe differs from flexible piping.

[0016] The connecting pipe and spray nozzle are formed as a single unit, meaning they form part of a single integral component and cannot be removed from each other without damaging the spray assembly they contribute to.

[0017] According to an optional feature of the invention, the spraying component may include a distribution body inserted between the connecting pipe and the spray nozzle, particularly to give the spraying component a curved profile. It should also be understood here that each of these portions contributes to forming a single, integral spraying component. The distribution body takes the form of a rigid tubular fitting, one portion of which is connected to the connecting pipe and the other portion to the spray nozzle, and each of these portions is configured to allow cleaning fluid to pass through in the order it can circulate from the first end of the connecting pipe facing the solenoid valve to the spray nozzle.

[0018] According to an optional feature of the invention, the spraying component is directly fixed to the fluid outlet end piece by a reversible fixing device.

[0019] Therefore, the spraying component can be installed on the fluid outlet end and thus on the solenoid valve, or removed from the fluid outlet end and thus from the solenoid valve. "Reversible" is understood to mean that the installation and removal of the spraying component will not cause damage to one of the solenoid valve components, allowing these operations to be performed multiple times, and that such installation and removal require user intervention, and that vibrations that may occur under normal operating conditions cannot alone cause the spraying component and solenoid valve to separate.

[0020] According to a series of features of the present invention, considered individually or in combination, the following can be provided:

[0021] The reversible fixing device is supported by the fluid outlet end piece and the connecting pipe of the spraying component, respectively, and at least one of the fluid outlet end piece and the connecting pipe can take different positions through elastic deformation;

[0022] The reversible fastening device has snap-fit ​​fingers protruding from a wall that defines a sleeve forming a fluid outlet end piece, the snap-fit ​​fingers being configured to interact with holes formed in the wall defining the connecting tube.

[0023] The reversible fastening device has a protrusion that protrudes from the wall defining the connecting tube toward the interior of the connecting tube and is configured to interact with a stop protruding from the sleeve forming the fluid outlet end piece after elastic deformation of the wall carrying the protrusion and / or the sleeve carrying the stop.

[0024] These features specifically enable a snap-fit ​​fastening system that allows the spraying component to be secured to the solenoid valve. "Snap-fit ​​fastening" is understood to mean that one of the components slightly deforms under applied force and then returns to its initial shape, thereby locking the spraying component and the rigid body in place. This snap-fit ​​fastening system eliminates the need for specific fastening techniques such as adhesive bonding, welding, or other fastening methods.

[0025] According to an optional feature of the invention, the reversible fixing device has a locking element separate from the spraying member and the fluid outlet end piece, the locking element being elastically deformable and capable of interacting with at least one hole formed in the wall defining the connecting pipe.

[0026] According to another optional feature of the invention, the spraying device further includes a fault-prevention device.

[0027] The spraying component functions to spray fluid onto the surface of a vehicle, particularly onto the optical surface of a sensor / transmitter located nearby. For this purpose, the spray nozzle must be positioned so that the jet of clean fluid exiting the nozzle is correctly oriented towards the optical surface. Error-proofing mechanisms allow for a single possible orientation for mounting the spraying component onto the dispensing component, ensuring that the spraying component and, consequently, the spray nozzle, can be positioned on the dispensing component in only one manner. This limits potential installation errors and guarantees correct nozzle positioning.

[0028] According to an optional feature of the invention, the error-proofing device has a plurality of positioning tabs protruding from the connecting tube to at least partially cover the dispensing member, and at least one of the positioning tabs has a shape and / or size different from the other positioning tabs. The error-proofing device also has a low wall formed at the periphery of the dispensing member to interact with the positioning tabs whose shape and / or size differs from the other positioning tabs.

[0029] According to another optional feature of the invention, the error prevention device may include a system for adjusting the position of the spraying component.

[0030] It will be understood that the error-proofing device of the spraying component allows only one possible installation orientation, thus fixing the spraying component relative to a reference system on the solenoid valve and, for example, a low-wall position formed around the periphery of the dispensing component. Once the spraying component has been installed on or pre-installed on the dispensing component, the system for adjusting the position of the spraying component allows it to be adapted to the position of the reference system to ultimately position the spraying component relative to the surface to be cleaned. For example, the reference system can be fixed to a notched ring, which is mounted on the dispensing component of the solenoid valve and can be precisely adjusted in position and then fixed.

[0031] According to another optional feature of the invention, the fluid outlet end piece has a chamfered free end to facilitate the mounting of the spraying component around the outlet end piece.

[0032] To be secured to the solenoid valve, the spraying component is mounted on the fluid outlet end piece by sliding the connecting pipe around a sleeve forming the fluid outlet end piece. The chamfer at the end of the fluid outlet end piece thus facilitates the insertion of the sleeve into the connecting pipe.

[0033] According to an optional feature of the invention, the spraying component has a delivery conduit that extends continuously within the spraying component from a connecting pipe to a spray nozzle, and a fluid outlet end piece is inserted into the delivery conduit. The delivery conduit has a shoulder disposed between two sections of the delivery conduit having different channel cross-sections, and the shoulder forms an end stop for inserting the fluid outlet end piece into the spraying component.

[0034] Another subject of the invention is a system for cleaning the surface of a motor vehicle, the system comprising a pump that delivers cleaning fluid through a conduit to at least one solenoid valve of a spraying device as described above, the solenoid valve being configured to allow or prevent fluid from being sprayed onto the surface via the spraying member.

[0035] Further features, details, and advantages of the invention will become more apparent from the accompanying illustrative drawings, the following description, and from the various exemplary embodiments given in a non-limiting manner, in which:

[0036] [ Figure 1 [Illustration of a motor vehicle equipped with a driver assistance system having multiple sensors, in which each sensor is associated with a cleaning fluid spraying device according to the invention, having a solenoid valve and spraying components fixed together without inserted flexible pipes;]

[0037] [ Figure 2[Illustration] is a partial perspective view of a cleaning system according to the present invention, equipped with two cleaning fluid spraying devices configured to spray cleaning fluid onto the optical surface of a sensor.

[0038] [ Figure 3 [Illustration 1] is a perspective view of a cleaning fluid spraying device according to a first embodiment of the present invention;

[0039] [ Figure 4 ] is from Figure 3 A perspective view of the cleaning fluid spraying device from another angle;

[0040] [ Figure 5 ]yes Figure 3 An exploded view of the cleaning fluid spraying device shown;

[0041] [ Figure 6 ]yes Figure 3 The longitudinal cross-sectional view of the cleaning fluid spraying device shown;

[0042] [ Figure 7 ] is to show Figure 3 A perspective view showing the detailed components of the cleaning fluid spraying device (including the solenoid valve distribution component and the spraying component);

[0043] [ Figure 8 ]yes Figure 7 A three-dimensional view of the spraying components;

[0044] [ Figure 9 This is a partial perspective view of the spraying device according to the second embodiment, in which the solenoid valve distribution component and the spraying component are clearly shown;

[0045] [ Figure 10 ] is through Figure 9 The longitudinal section of a portion of the distribution component and the spraying component;

[0046] [ Figure 11 This is a partial perspective view of a spraying device according to a third embodiment, in which the distribution component of the solenoid valve and the spraying component are clearly shown.

[0047] [ Figure 12 ] is through Figure 11 The longitudinal section of a portion of the distribution component and spraying component.

[0048] The features, variations, and different embodiments of the present invention can be combined with each other in various combinations, as long as they are compatible or non-exclusive. In particular, it is conceivable that variations of the present invention may include only the selection of features described independently of the other characteristics described, provided that such selection of features is sufficient to provide a technical advantage / or distinguish the present invention from the prior art.

[0049] Figure 1 A motor vehicle V is shown equipped with a cleaning system according to the invention, which allows for the cleaning of at least one surface of the vehicle. Such a surface to be cleaned may include, for example, the windshield PB or the rear window of the vehicle, or may include the optical surface of one of the optical sensors / transmitters 1 equipped on the vehicle.

[0050] The cleaning system specifically includes a pipe or hydraulic circulation bus H that enables the circulation of cleaning fluid, and a cleaning fluid spraying device 2 installed in the vehicle and associated with one of the optical sensors / transmitters 1. Figure 1 In the example shown, spray device 2 is specifically designed to clean a single mounted glass surface, but by reading... Figure 2 It will be understood that, for example, multiple spray devices 2 can be dedicated to cleaning the same mounted glass surface, provided that, as described below, each spray device 2 has a dedicated solenoid valve to which the spraying component is directly fixed.

[0051] More specifically, in the example shown, each spraying device in spraying device 2 is, for example, via... Figure 2 The supply hose F, partially shown, is hydraulically connected to the hydraulic distribution bus H, and the spraying devices 2 are independently connected to this hydraulic distribution bus and located in separate and connected areas of the hydraulic distribution bus (which in this case forms a bus shared by multiple spraying devices). In this non-limiting example of the implementation in a vehicle, it will be understood that a single hydraulic distribution bus ensures the supply of cleaning products to all spraying devices 2 installed on the vehicle.

[0052] The cleaning system also includes a pump P and a cleaning fluid storage container S. The pump P is configured to draw cleaning fluid from the storage container and continuously supply the cleaning fluid to the hydraulic distribution bus H.

[0053] In this context, the spraying device 2 is intended to clean both the optical surfaces of the sensors / transmitters 1 used for automated analysis of road scenarios (i.e., analysis using the vehicle's electronics to specifically manage the vehicle's driving assistance and / or handling assistance devices), and the embedded glass surfaces inside the vehicle, or the optical surfaces of sensors / transmitters used solely for direct analysis by the vehicle's driver. "Optical surfaces of sensors / transmitters" should be understood to mean that the cleaning system according to the invention is suitable for cleaning optical transmitter devices, optical receiver devices, and optical transmitter / receiver devices.

[0054] To optimize the cleaning of the mounting glass surface and, for example, the optical surface of an optical sensor, two spraying devices 2 can be arranged close to each other such that their respective spraying components face the same mounting glass surface, such as... Figure 2 As shown. In this case, each spraying device in the spraying apparatus is symmetrically arranged relative to the other in a plane perpendicular to the surface of the mounting glass, so as to optimize the spraying of cleaning fluid 162 onto the optical surface 164 of the optical sensor 1.

[0055] The cleaning fluid spraying device 2 according to the invention is disposed near the optical sensor / emitter 1 and the mounting glass surface to be cleaned. Specifically, the cleaning fluid spraying device has a solenoid valve 3 and a spraying component 8, which, according to the invention, is configured such that the component is directly fixed to the solenoid valve, particularly by a reversible fastening device of the elastic deformation snap-fit ​​type, without any flexible conduit arranged between the solenoid valve and the spraying component. In the following description, several spraying devices having a solenoid valve and a spraying component implemented according to various embodiments will be described.

[0056] First, refer to Figures 3 to 6 The spraying device according to the first embodiment is shown in its entirety.

[0057] The solenoid valve 3 includes a hydraulic system 4 and an electromagnetic system 5. The hydraulic system is configured to enable a sealed circulation of cleaning fluid from the supply hose F to the spraying component 8 and thus to the embedded glass surface of the associated sensor. The electromagnetic system is configured to receive and process instructions received from the control electronics, thereby affecting the circulation of the cleaning fluid in the hydraulic system 4.

[0058] In this configuration, the hydraulic system 4 includes a dispensing member 6, which is fixed to the electromagnetic system 5 and, according to the invention, directly connected to the spraying member 8, which is directly fixed to the dispensing member 6. As may be specified above, it will be understood that the spraying member 8 and the dispensing member 6 are in direct contact, meaning that no element is inserted between the two objects.

[0059] The electromagnetic system 5 includes a housing 10 configured to house various electronic components, with devices interacting with the distribution member 6 exposed outwards on a first surface 12 of the housing. According to a non-limiting example of the invention, the housing 10 in this case is substantially cuboid in shape and therefore has multiple surfaces, including the first surface 12. The housing 10 also includes an electrical coupling terminal 14, enabling the electromagnetic system, and more particularly the components housed within the housing 10, to be coupled to an electronic control unit.

[0060] The electromagnetic system has an electromagnetic component housed in the housing 10 that enables the blocking device 18 to move in the longitudinal direction A. This blocking device can take... Figure 6The system shows an unobstructed position and a blocked position. In the unobstructed position, the circulation of cleaning fluid in the hydraulic system 4 is permitted, while in the blocked position, the blocking device 18 prevents the circulation of fluid between the hydraulic system and the spraying component. Figure 6 As shown in the partial cross-sectional view, the electromagnetic system is configured in this case such that the blocking device 18 has a piston 22, the free longitudinal end 26 of which is partially located outside the housing 10 within the distribution member of the hydraulic system 4, and the piston 22 is able to pass through the first face 12 of the housing 10. In the open position, the free longitudinal end 26 of the piston is brought toward the first face 12, thereby making room for clean fluid to enter the distribution member 6. When the power supply to the electromagnetic component is stopped, the return device tends to bring the piston 22 and the blocking device 18 to their blocking position, which can prevent fluid from entering the distribution member.

[0061] As described above, the hydraulic system 4 includes a distribution component 6 that contacts the electromagnetic system 5. All components constituting the hydraulic system 4 are provided with seals to prevent leakage of the clean fluid circulating through the system.

[0062] The distribution component 6 comprises a rigid body that is either inelastically deformable or slightly elastically deformable, so that it maintains its initial overall shape during device operation.

[0063] The distributing member 6 has a circulation chamber 28, which is formed into a channel for cleaning fluid. The circulation chamber communicates with the fluid inlet end member 30 on one side and with the fluid outlet end member 32 on the other. Figure 5 As can be clearly seen, the fluid inlet end piece 30 protrudes from the side of the distribution member 6, and the fluid outlet end piece 32 protrudes from the front of the distribution member 6 away from the electromagnetic system 5.

[0064] The circulation chamber 28 is arranged in the direct continuation of the first surface 12 of the outer casing 10, such that the free longitudinal end 26 of the piston 22 of the electromagnetic system 5 can extend in the circulation chamber 28, thereby enabling or disabling the circulation of the cleaning fluid in the circulation chamber 28. As described above, the piston 22 of the electromagnetic system 5 in... Figure 6 The piston 22 is shown in the unobstructed position, meaning that clean fluid can circulate from the fluid inlet end 30 through the circulation chamber 28 to the fluid outlet end 32. It will also be understood that in the blocked position, the free longitudinal end 26 of the piston 22 is arranged to block the fluid outlet end 32 of the dispensing member 6.

[0065] The fluid inlet 30 of the distribution component 6 is configured to be attached via a flexible conduit to a hydraulic distribution circuit shared by all cleaning fluid spraying devices of the fluid storage container or vehicle, as shown in reference. Figure 1 and Figure 2As mentioned above, the cleaning fluid is continuously present in the fluid inlet end piece 30 and the circulation chamber 28, and depending on the configuration of the electromagnetic system 5 and as described above, the cleaning fluid then circulates toward the fluid outlet end piece 32 or is blocked at the circulation chamber 28 of the dispensing member 6.

[0066] As in Figure 4 and Figure 5 As can be seen more specifically, the fluid inlet end piece 30 takes the integral form of a cylindrical sleeve 34 with a variable cross-section. "Variable cross-section" is understood to mean that the sleeve 34 is composed of multiple parts, each with a different outer diameter. More specifically, on the free edge 36 of the sleeve 34, on the opposite side of the circulation chamber 28, the sleeve 34 includes an inlet opening 38 that allows cleaning fluid to flow in and is intended to lead to the circulation chamber 28 via a circulation conduit 40 formed within the sleeve 34.

[0067] The sleeve 34 is configured to allow a sealable connection of the flexible conduit to enable the inflow of cleaning fluid, and specifically has a chamfered portion 42 forming a ramp widening the sleeve from the free edge 36, a middle portion 44, and a portion for connection to the cylinder 280 leading to the circulation chamber 28. The flexible conduit is fitted around the chamfered portion 42 (the ramp shape of which facilitates this fitting), then around the middle portion 44, and a stop portion 46 formed at the junction between the chamfered portion 42 and the middle portion 44 allows the flexible conduit to be held in place.

[0068] The circulation chamber 28 is defined in the distribution member 6 by a closed sleeve 48 having three openings. Specifically, the three openings are a first opening 50 formed in the cylinder 280 and communicating with the fluid inlet end member 30, a second opening 52 communicating with the fluid outlet end member 32, and a third opening 54 provided facing the first surface 12 of the outer casing 10 and sized such that at least a portion of the piston of the electromagnetic system 5 can extend into the circulation chamber 28.

[0069] As shown in the figure, the third opening 54 and the second opening 52 are aligned along the longitudinal direction A and formed on both sides of the circulation chamber 28. In this way, the longitudinal displacement of the piston can cause the free longitudinal end 26 of the piston to abut against or move away from the second opening 52, thereby preventing or allowing the cleaning fluid to circulate between the circulation chamber 28 and the fluid outlet end piece 32.

[0070] The envelope 48 extends generally in the form of a cylindrical element centered on an axis parallel to the longitudinal direction A, and the cylinder 280, configured to communicate with the fluid inlet end piece 30, extends across this cylindrical element. In other words, in the example shown, the fluid inlet end piece extends laterally to the rest of the solenoid valve, which extends substantially in the longitudinal direction.

[0071] The envelope 48 has a first longitudinal edge 56 configured to contact the electromagnetic system 5, defining a first generally disc-shaped surface 58 in which a third opening 54 of the envelope 48 is located. The envelope 48 has a second longitudinal end edge 60, which is opposite to the first edge 56 in the longitudinal direction A and defines a projecting second generally disc-shaped surface 62 from which the fluid outlet end member 32 extends. Therefore, the envelope 48 has a substantially cylindrical peripheral wall 64 connecting the first edge 56 and the second edge 60 of the envelope 48 and extending laterally from the cylinder body 280, allowing communication with the fluid inlet end member as described above.

[0072] The fluid outlet end piece 32 has a shape substantially the same as the fluid inlet end piece 30 described above, having a sleeve 66 protruding from the second surface 62 of the sleeve 48 and configured to interact with the spraying member 8. The sleeve 66 extends longitudinally, has a free longitudinal end 68, and is longitudinally passed through by a fluid outlet conduit 70, which leads to the circulation chamber 28 on one hand and opens outward at the free end 68 of the sleeve 66 on the other. Figure 6 As shown, the fluid outlet pipe 70 can have a substantially constant inner diameter.

[0073] Similarly, like the fluid inlet end piece, the sleeve 66 is subdivided into multiple parts, specifically, from the free end 68 to the sleeve 48, they are: a first end portion 72, a chamfered portion 74, an intermediate portion 76, and a second end portion 78.

[0074] The first end portion 72 includes a flexible ring 80, which forms a sealing element at the junction with the spraying component when the sleeve 66 is fitted into the corresponding orifice of the spraying component.

[0075] The chamfered portion 74 forms a ramp, making it easier to assemble the spraying component onto the fluid outlet end piece, and like the fluid inlet end piece, the chamfered portion helps to define a stop 84 at its junction with the intermediate portion 76, which extends radially relative to the sleeve 66, and helps to lock the longitudinal position of the spraying component relative to the solenoid valve 3 once the spraying component 8 has been installed on the fluid outlet end piece 32.

[0076] The second end portion 78 specifically has a cylindrical portion 86 arranged to correspond with the intermediate portion 76, and a plate 88 having a larger diameter than the cylindrical portion and forming a base capable of pressing against the second surface 62 of the dispensing member 6, and forming a complementary fastening device 90 (e.g., a thread, such as in...). Figure 10 As can be seen in the figure, which shows a support member of another embodiment, such that the sleeve 66 of the fluid outlet end piece can be secured to the sleeve 48 of the dispensing member 6.

[0077] As described above, the fluid outlet end piece 32, and more generally the distribution member 6, is designed to interact with the spraying member 8, which is directly attached to the member 6 of the solenoid valve 3.

[0078] Now, special reference will be made Figure 7 and Figure 8 A more detailed description of the spraying component 8 according to a first embodiment of the present invention is given, wherein the interaction device between the component 6 and the spraying component 8 is described.

[0079] The spraying component 8 includes at least one connecting pipe 92 and a spray nozzle 94, and a dispensing body 96 configured to fluidly connect the connecting pipe 92 to the spray nozzle 94.

[0080] The connecting pipe 92 forms the portion of the spraying component that is directly fixed to the sleeve 66 of the fluid outlet end piece 32. More specifically, the connecting pipe 92 extends substantially along the longitudinal direction A between a first longitudinal end 98 facing the dispensing component 6 and a second longitudinal end 100 facing away from the dispensing component 6 and fixed to the dispensing body 96.

[0081] The dispensing body 96 is in the form of a hollow tube, and its function is to supply cleaning fluid to the spray nozzle after the cleaning fluid has passed through the connecting pipe 92. As shown, the dispensing body is distinguished from the connecting pipe by its overall orientation along a direction S intersecting the longitudinal direction A. This orientation of the dispensing body 96, forming an angle with the longitudinal direction A, allows the spray nozzle 94 to be oriented so that the cleaning fluid is optimally sprayed onto the surface to be cleaned, specifically, in this case, onto the optical surface of the sensor / transmitter. It will be understood that if the spray nozzle 94 could be directly arranged in the continuation of the connecting pipe 92, the presence of this dispensing body and its tilted orientation relative to the longitudinal direction might not be necessary.

[0082] like Figure 6 More specifically, the connecting pipe 92, the dispensing body 96, and the spray nozzle 94 are hollow to form a delivery conduit 102 within the spraying member 8, which allows fluid to be delivered from the dispensing member 6 to the spray nozzle 94. In this case, the spray nozzle has a nozzle 104 with a spray orifice 106, and the delivery conduit 102 extends to the spray orifice 106.

[0083] The delivery conduit 102 is defined by the walls of each of the components of the spraying member 8, each wall having an internal dimension, here being the inner diameter when the delivery conduit is cylindrical in shape. These inner diameters differ from one another and thus define different sections of the delivery conduit 102. From the first longitudinal end 98 of the connecting pipe 92 to the spray orifice 106 of the spray nozzle 94, the delivery conduit 102 can be distinguished in this way between the following sections: the interaction section 108 for interacting with the fluid outlet end piece 32, the connecting section 110, the distributing section 112, and the spraying section 114.

[0084] The interaction section 108 of the connecting pipe 92 is defined by a wall having an inner diameter substantially equal to the outer diameter of the sleeve 66, for example, measured at the stop 84. This allows the spraying member 8 to be mounted around the outlet end 32 of the dispensing member 6 in a close-fitting manner. Furthermore, the length of the interaction section 108 is substantially equal to the length of the sleeve 66, such that the free end of the sleeve 66 is positioned substantially at the level of the shoulder 116, which forms the engagement between the interaction section 108 and the connecting section 110.

[0085] Similarly, the connecting section 110, formed at the level of the connecting pipe 92, is defined by a wall having an inner diameter that is smaller than the inner diameter that helps define the interaction section 108, and in this way, this reduction in diameter produces the aforementioned shoulder 116. (As can be seen...) Figure 6 As seen in the diagram, the diameter of the connecting section 110 is substantially the same as the diameter of the fluid outlet pipe 70, allowing the fluid to flow continuously at a constant pressure between this part of the distribution member 6 and the spraying member 8.

[0086] The distribution section 112 extends the delivery conduit 102 from the connecting section 110 through the distribution body 96 to the spray nozzle 94. The distribution section 112 is defined by a wall having an inner diameter that decreases as it moves further away from the connecting section 110, thus forming a funnel profile as it approaches the spray orifice 106. The purpose is therefore to increase the pressure or flow rate of the cleaning fluid near the spray orifice so that the sprayed cleaning fluid can remove dirt covering the optical surfaces of the associated sensors.

[0087] The spray section 114 present at the spray nozzle 94 has a smaller cross-section than the other sections of the delivery pipe 102, thereby providing a connection between the distribution section 112 and the spray orifice 106. Similarly, the aim is to accelerate the cleaning fluid at the outlet of the spray component.

[0088] In order to install the spraying component 8 onto the dispensing component 6, the connecting pipe 92 slides along the longitudinal direction A around the sleeve 66 until the free end 68 of the sleeve 66 and a flexible ring 80 specifically arranged at the free end 68 contacts the shoulder 116, which defines the engagement between the interaction section 108 and the connecting section 110.

[0089] Once the spraying component 8 has been installed on the distribution component 6 of the solenoid valve 3, if the solenoid valve is configured to allow fluid to flow toward the spraying component, the cleaning fluid can circulate from the fluid inlet end 30 of the distribution component 6 to the spray orifice 106. In this case, the cleaning fluid circulates successively from the fluid inlet end 30 through the circulation chamber 28, then through the fluid outlet end 32, and finally through the connecting section 110, the distribution section 112, the spraying section 114, and then the spray orifice 106 into the spraying component 8, as just described.

[0090] Because the spraying component contacts the shoulder as it is assembled around the fluid outlet end piece, the flexible ring 80 facilitates a seal at the interaction section 108 of the spraying device, thereby ensuring that all cleaning fluid flowing through the outlet end piece 32 travels in the direction of the dispensing body 96 and the spray nozzle 94. As described above, making the inner diameter defining these different sections smaller allows for an increase in the speed at which the cleaning fluid circulates through the delivery conduit 102 until the fluid reaches the speed required to be sprayed onto the optical surface to ensure that the optical surface is cleaned.

[0091] Now, in particular, reference Figures 5 to 8 A more detailed description is given of the device for the interaction between the dispensing component 6 and the spraying component 8, which includes, on the one hand, a fixing device that allows the spraying component to be directly fixed to the solenoid valve, and on the other hand, a mis-proofing device that ensures the proper installation orientation.

[0092] The spraying device according to the invention includes at least one error-proofing device 124 for mounting the spraying component 8 on the solenoid valve 3 to ensure that the spraying nozzle 94 is correctly oriented toward the optical surface to be cleaned.

[0093] On the spraying component 8, the anti-misalignment device 124 in this case takes the form of a first positioning tab 126 and a second positioning tab 128, each of which protrudes from the connecting tube at the first longitudinal end 98 of the connecting tube 92 so as to overlap with the dispensing component when the spraying component 8 is fixed to the dispensing component 6.

[0094] In the example shown, the positioning tabs forming the error prevention device are disposed on the edge defining the first longitudinal end 98 and are diametrically opposed to each other.

[0095] Each of the positioning tabs 126 and 128 includes a base wall 130 that extends along a transverse direction B, substantially perpendicular to the longitudinal direction A, along which the connecting tube 92 extends primarily. At the end of the base wall, each positioning tab has at least a first finger 132 that extends perpendicularly to the base wall 130 in a direction substantially parallel to the longitudinal direction A in the direction of the dispensing member 6, i.e., away from the spraying member 8. The base wall 130 of each of the positioning tabs 126 and 128 may be continued by a second finger 134 that extends substantially parallel to the longitudinal direction A beside the first finger 132.

[0096] In the example shown, and as in Figure 7 As can be clearly seen, an intermediate wall 131 is formed between the base wall 130 and the fingers 132, 134 that continue the base wall, in order to provide flexibility for bending of the fingers 132, 134. The intermediate wall 131 has an orientation that is inclined relative to the corresponding orientation of the base wall and the fingers, such that the intermediate wall 131 forms a chamfered area for the corresponding positioning tab.

[0097] On the spraying component, the error-proof device 124 is formed by the structural difference between the first positioning tab 126 and the second positioning tab 128. For example... Figure 7 and Figure 8 As shown, the base wall 130 and / or intermediate wall 131 of the first positioning tab 126 has a lateral dimension measured in the lateral direction B, which is greater than the corresponding lateral dimension of the base wall 130 and / or intermediate wall 131 of the second positioning tab 128. In this way, if the elongation axis of the spraying member is defined as the axis centered on the connecting pipe, the difference in the positioning tabs is that the fingers 132, 134 of the first positioning tab 126 extend longitudinally at a distance greater than the corresponding distance the fingers of the second positioning tab 128 extend from the elongation axis of the spraying member.

[0098] This structural difference allows for ensuring that the spraying component 8 is in the correct orientation when it is directly fixed to the solenoid valve 3, meaning that the spray nozzle is correctly oriented to spray fluid onto the optical surface to be cleaned.

[0099] If it is possible Figure 5 and Figure 7As clearly seen, the sleeve 48 of the dispensing component has a low wall 136 on its peripheral wall 64, which forms a partial protrusion on the second longitudinal end edge 60 and is fixed to the cylinder body 280. The low wall 136 is a parallelepiped block protruding from the sleeve 48 in the transverse direction B, with its flat surface 138 extending away from the sleeve. Because the low wall 136 forms a partial protrusion, the transverse dimension of the sleeve 48 at this wall 136 is larger than the corresponding dimension of the sleeve 48 at points opposite in diameter. This difference in transverse dimension means that when the spraying component 8 is mounted on the solenoid valve, only the fingers 132, 134 of the first positioning tab 126 can be positioned against the flat surface 138 of the low wall 136, and the difference between the transverse dimension of the first positioning tab 126 and the transverse dimension of the second positioning tab 128 is substantially equal to the transverse dimension of the low wall 136. The fingers of the second positioning tab 128 then contact the sleeve 48 in the region opposite in diameter to the low wall 136.

[0100] It will be understood that if the spraying component is installed incorrectly, that is, if the second positioning tab 128 is positioned at an angle at the lower wall 136, the fingers of the second positioning tab 128 will contact the lower wall and prevent the spraying component 8 from being inserted close enough to the dispensing component 6 to allow it to be secured. Therefore, the presence of the lower wall 136 on the solenoid valve and the different shapes and sizes of the positioning tabs 126, 128 of the spraying component form a mis-proofing device 124 for installing the spraying component 8 on the dispensing component 6.

[0101] In an alternative embodiment (not shown in this case), the error-proofing device 124 may include a rib that partially protrudes from the connecting tube 92 and is sized to interact with a cut formed partially along the outer side of the sleeve 66, or it may include a finger that protrudes from the sleeve 48 of the dispensing member 6 and interacts with a groove formed in the inner surface of the connecting tube 92, thereby not departing from the scope of the invention.

[0102] As described above, the spraying device according to the invention has a fixing device that allows the spraying component to be fixed to the solenoid valve, and in particular, the rigid connecting pipe 92 to the rigid distribution component 6 directly, that is, without the need for an intermediate flexible pipe.

[0103] According to a first embodiment of the invention, the spraying device includes reversible fastening devices 140, which allow the spraying component to be directly fastened to the sleeve 66 forming the fluid outlet end piece 32. It will be understood that these reversible fastening devices 140 enable the spraying component 8 to be directly fastened to the solenoid valve, while still allowing the spraying component 8 to be subsequently removed without damaging the spraying component 8 or the dispensing component 6.

[0104] These reversible fixing devices 140 have an additional portion forming a locking element 148, which is assembled once the spraying member 8 has been installed on the outlet end of the dispensing member 6. In this case, the locking element includes a resilient clamping ring or resilient retaining ring, which is fitted into an opening formed in the spraying member 8 to lock the longitudinal position of the outlet end within the spraying member.

[0105] More specifically, and as Figure 5 and Figure 6 As shown, the connecting pipe 92 of the spraying component 8 has at least one first hole 146 that extends circumferentially in the wall of the connecting pipe and is configured to connect the delivery pipe 102, and more particularly the interacting section 108 of the delivery pipe, through the wall of the connecting pipe to the external environment. The longitudinal dimension of the first hole 146 is substantially equal to the longitudinal dimension of the locking element 148, and the first hole extends partially around the connecting pipe 92.

[0106] The first hole is formed at a certain distance from the first longitudinal end 98, such that the length between the first hole 146 and the shoulder 116 that forms the engagement between the interaction section 108 and the connecting section 110 in the connecting tube 92 is at least equal to or even greater than the length of the sleeve 66 measured between the free end 68 and the stop 84 arranged at the engagement between the intermediate portion 76 and the chamfered portion 74.

[0107] These longitudinal dimensions are provided such that when the sleeve 66 is inserted into the spraying member, the stop 84 is positioned at the boundary of the first hole, between the first hole and the shoulder 116.

[0108] As described above, the locking element 148 is a resilient retaining ring, in this case U-shaped, whose first leg 150 can be received in the first hole 146 of the connecting tube 92. The first leg 150 of the resilient retaining ring then contacts the middle portion 76 of the sleeve 66 and, together with the stop member 84, forms a device to prevent the sleeve 66 from longitudinally displacing within the spraying member 8.

[0109] In the example shown, the connecting tube 92 includes a second hole 152 that is diametrically opposite to the first hole 146, and then the second leg 154 of the resilient retaining ring is symmetrically received in the interacting section 108 of the connecting tube 92 through the second hole 152 in a manner that the first leg 150 is received in the first hole 146. The second leg 154 also contacts the middle portion 76 of the sleeve 66 and helps to longitudinally lock the sleeve via the stop 84 of the sleeve.

[0110] If it is possible Figure 5As seen in the diagram, the first leg 150 and the second leg 154 of the resilient retaining ring are spaced apart from each other by a distance smaller than the diameter of the connecting pipe in the initial form of the resilient retaining ring, such that when the resilient retaining ring is arranged around the connecting pipe, these legs deform by moving away from each other. Once each leg faces the corresponding hole, the elastic return action of the resilient retaining ring tends to engage each leg in the hole, thereby allowing the spraying component 8 to be held in proper position on the sleeve 66 by locking the chamfered portion 74 and the first end portion 72 of the sleeve 66 between the legs 150, 154 of the resilient retaining ring and the shoulder 116 of the connecting pipe 92. Vibrations of the spraying device 2 during its operation or when the vehicle is moving are insufficient to cause the legs to move away from each other, making the direct fixation between the spraying component and the solenoid valve reliable, and allowing the component to be removed by the user's action if needed, by moving the legs of the resilient retaining ring away from each other to detach the spraying component 8 from the solenoid valve.

[0111] Now refer to Figure 9 and Figure 10 A second embodiment of the cleaning fluid spraying device of the present invention is described below, which differs significantly from the foregoing embodiment in the form of the spray nozzle 94 and the implementation of the reversible fixing device 140 (which allows the spraying member 8 to be directly fixed to the sleeve 66 forming the fluid outlet end member 32). Therefore, in Figure 9 and Figure 10 Only the spraying component 8 and the dispensing component 6 are shown in the diagram. The electromagnetic system 5 of the solenoid valve 3 can be used in the same manner as described above.

[0112] The spray nozzle 94 has a simplified form in this case, and in this case only includes the spray orifice 106.

[0113] As described above, the reversible fixing device 140 has a first hole 146 formed in the connecting tube 92, as described above with respect to the first embodiment. According to the first embodiment, the hole 146 is configured to receive an elastically deformable element, which in this first embodiment is formed of an elastic retaining ring.

[0114] In this configuration, an elastically deformable element capable of interacting with at least one orifice is formed from the free end of the sleeve 66 of the fluid outlet end piece, which can deform between its original shape and a retracted shape, in which the inner diameter of the fluid outlet conduit 70 is smaller. The elastically deformable element also has a snap-fit ​​fastening finger 156 arranged at the junction between the chamfered portion 74 and the intermediate portion 76, its longitudinal dimension being substantially equal to the corresponding longitudinal dimension of the first orifice 146. The snap-fit ​​fastening finger 156 forms a radial protrusion on the sleeve of the fluid outlet end piece, which can be accommodated in the first orifice 146 when the fluid outlet end piece is inserted into the shoulder 116 within the spray member 8. The snap-fit ​​fastening finger 156 forms a radial protrusion on the sleeve because it extends at a greater distance from the longitudinal axis A centered on the sleeve 66 than any other portion of the sleeve intended for insertion into the spray member 8.

[0115] As can be seen, the first longitudinal end 98 of the connecting tube 92 has a chamfered edge, which facilitates the insertion of the snap-fit ​​finger 156 into the connecting tube 92 of the spraying member by elastic deformation of the free end of the starting sleeve. It should be noted that reverse elastic deformation of the connecting tube may occur, particularly widening of the connecting tube to allow the snap-fit ​​finger to pass through. Once the spraying member 8 has been assembled far enough around the fluid outlet end piece 32 so that the snap-fit ​​finger 156 faces the first hole 146, the elastic return effect of both the sleeve 66 and the connecting tube tends to restore the components to their initial shape and the snap-fit ​​finger 156 is accommodated in the first hole 146 of the connecting tube 92.

[0116] Once the snap-fit ​​fastening finger 156 is received in the first hole 146 of the connecting tube 92, the spraying member 8 is held in place around the sleeve 66, thereby preventing any movement of the spraying member 8 in the longitudinal direction A.

[0117] This fastening device for securing the spraying component 8 to the dispensing component 6 is also referred to as reversible because the user can remove the spraying component 8 from the dispensing component 6 without damaging either component. If the user wishes to remove the spraying component 8 from the dispensing component 6, they can apply pressure to the snap-fit ​​fastening fingers 156 to expel it from the first hole 146 while simultaneously pulling the spraying component 8 longitudinally to move it away from the solenoid valve.

[0118] It will be understood that this snap-fit ​​fastening can be equivalently achieved using the two opposing holes and two snap-fit ​​fingers described in the first embodiment.

[0119] In the latter case, it is sufficient for the spraying device to be equipped with a mis-proofing device 124, which can take the same form as in the first embodiment. A mis-proofing device without the aforementioned positioning tab form can also be provided if a single snap-fit ​​fastening finger and a single hole are provided, because as long as the single snap-fit ​​fastening finger and the single hole interact, the angular position of the spray nozzle 94 will necessarily be correct. However, even in this case, the mis-proofing device can be an additional device used to ensure that the snap-fit ​​fastening finger and the hole are aligned and interact well when the spraying component is fully assembled to the fluid outlet end of the solenoid valve.

[0120] Now refer to Figure 11 and Figure 12 A third embodiment is given, which differs from the first embodiment in the form of the reversible fixing device 140.

[0121] The spraying component 8 has a parallelepiped block 158 that partially surrounds the connecting pipe 92, extending from the positioning tabs 126, 128 to the dispensing body 96. The form of the parallelepiped block is merely illustrative in this context and does not limit the invention. It should be understood that the primary function of the block is to locally increase the thickness of the connecting pipe so that protrusions forming snap-fit ​​fastening fingers can be engaged within the inner surface of the interacting section 108 that defines the delivery pipe 102.

[0122] More specifically, and if possible Figure 12 As seen in the figure, the connecting pipe has at least one protrusion 160 at the level of block 158, radially projecting across the interacting section 108 of the conveying pipe 102. The protrusion 160 can extend noticeably over the entire periphery of the wall defining the interacting section 108 of the conveying pipe. The protrusion 160 has a first face and a second straight face, the first face forming a ramp oriented toward a first end 98 of the sleeve 66, and the second straight face facing away from the first end and capable of forming a longitudinal stop. The dimensions of the protrusion 160 are determined such that the lateral dimension of the conveying pipe 102 at the junction between the first and second faces of the protrusion is substantially equal to the lateral dimension of the sleeve in its intermediate portion 76, which forms a material-free gap between the chamfered portion 74 and the second end portion 78. As shown, the protrusion 60 can have a shape similar to the chamfered portion 74 of the sleeve 66, but arranged in the opposite direction.

[0123] Furthermore, a protrusion 160 is formed in the connecting tube 92 such that the length measured between the second surface of the protrusion forming the longitudinal stop surface and the shoulder 116 is slightly greater than the longitudinal dimension of the sleeve 66 between the free end 68 and the stop 84 of the middle portion 76 defining the chamfered portion 74.

[0124] The protrusion 160 is made of the same material as the material used to make the connecting tube 92, but may alternatively be made of a different material that enhances its elastic deformation.

[0125] When the spraying component 8 is mounted on the dispensing component 6, the connecting pipe 92 slides along the longitudinal direction A around the sleeve 66, causing the protrusion 160 of the connecting pipe 92 to move closer to the chamfered portion 74 of the sleeve 66. This longitudinal movement involves contact between two sloping surfaces formed on the protrusion and the chamfered portion 74, respectively, allowing for continued longitudinal displacement with a small force. At least one of these components elastically deforms to allow this longitudinal movement to continue. This movement continues until the chamfered portion 74 is received within the delivery conduit 102, between the protrusion 160 and the shoulder 116 of the connecting pipe 92. Thus, each of these components returns to its initial shape, and the protrusion 160 is positioned in the gap formed by the intermediate portion 76, thereby preventing any further movement of the spraying component 8 along the longitudinal direction A by abutting against the chamfered portion 74.

[0126] In order to remove the spraying component 8 from the dispensing component 6, the user must move the operating tabs away from each other to deform the sleeve and enlarge the channel cross-section at the protrusion so that the chamfered portion 74 can be released from the space defined by the protrusion 160 and shoulder 116 of the connecting tube 92.

[0127] However, the invention is not limited to the devices and configurations described and shown herein, but extends to any equivalent devices or configurations described and shown herein, and also to any technically operable combination of such devices or configurations. In particular, other reversible fixing devices can be implemented, provided they enable the spraying component to be directly fixed to the solenoid valve.

Claims

1. A fluid spraying device (2) for a system for cleaning the surface (164) of a motor vehicle, the spraying device comprising a solenoid valve (3) configured to allow or prevent fluid from flowing toward a spraying member (8), the solenoid valve having a hydraulic system (4) and an electromagnetic system (5), the hydraulic system (4) comprising at least one fluid distribution member (6) having at least one fluid inlet end (30), a circulation chamber (28), and a fluid outlet end (32) in fluid communication with the spraying member (8), the electromagnetic system (5) being configured to allow or prevent fluid from flowing through the circulation chamber (28), characterized in that, The spraying component (8) includes at least one connecting pipe (92) and a spray nozzle (94), the connecting pipe and the spray nozzle being integrally formed, and the connecting pipe (92) being directly fixed to the fluid outlet end piece (32).

2. The fluid spraying device as described in claim 1, characterized in that, The spraying component (8) is directly fixed to the fluid outlet end piece (32) by a reversible fixing device (140).

3. The fluid spraying device as claimed in the preceding claim, characterized in that, The reversible fixing device (140) is supported by the fluid outlet end piece (32) and the connecting pipe (92) of the spraying component (8), respectively, and at least one of the fluid outlet end piece (32) and the connecting pipe (92) can take different positions through elastic deformation.

4. The fluid spraying device as described in claim 3, characterized in that, The reversible fastening device (140) has snap-fit ​​fastening fingers (156) protruding from a wall that defines a sleeve (66) forming the fluid outlet end piece (32), the snap-fit ​​fastening fingers being configured to interact with a hole (146) formed in the wall defining the connecting tube (92).

5. The fluid spraying device as described in claim 3, characterized in that, The reversible fixing device (140) has a protrusion (160) that protrudes from the wall defining the connecting tube (92) toward the interior of the connecting tube (92) and is configured to interact with a stop (84) that protrudes from the sleeve (66) forming the fluid outlet end piece (32) after elastic deformation of the wall carrying the protrusion and / or the sleeve carrying the stop.

6. The fluid spraying device as described in claim 2, characterized in that, The reversible fixing device has a locking element (148) separate from the spraying member (8) and the fluid outlet end piece (32), the locking element being elastically deformable and capable of interacting with at least one hole (146, 148) formed in the wall defining the connecting pipe (92).

7. The fluid spraying device as described in any one of the preceding claims, characterized in that, The fluid spraying device also includes a fault-prevention device (124).

8. The fluid spraying device as claimed in the preceding claim, characterized in that, The error-proofing device (124) has a plurality of positioning tabs (126, 128) protruding from the connecting tube (92) to at least partially cover the dispensing member (6), and at least one of the positioning tabs has a shape and / or size different from the other positioning tabs. The error-proofing device (124) also has a low wall (136) formed at the periphery of the dispensing member (6) to interact with the positioning tabs (126) whose shape and / or size differs from the other positioning tabs.

9. The fluid spraying device as described in any one of the preceding claims, characterized in that, The spraying component (8) has a delivery pipe (102) that extends continuously within the spraying component from the connecting pipe (92) to the spray nozzle, and the fluid outlet end piece (32) is inserted into the delivery pipe. The delivery pipe (102) has a shoulder (116) disposed between two segments of the delivery pipe (102) having different channel cross-sections. The shoulder (116) forms an end stop for inserting the fluid outlet end piece (32) into the spraying component (8).

10. A system for cleaning the surface (164) of a motor vehicle, the system comprising a pump that delivers cleaning fluid through a conduit to at least one solenoid valve (3) of a spraying device as described in any of the preceding claims, the solenoid valve (3) being configured to allow or prevent the fluid from being sprayed onto the surface (164) via the spraying member (8).

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