Vehicle windshield wiper device and method of applying the device

Abstract

Title: Vehicle windshield wiper device and method for applying the device Windshield wiper device comprising at least one wiper blade (12a) for passing over a vehicle window (14a) or a sensor surface (16a) comprising a washer fluid line (18a) and a washer fluid distribution unit (20a) for applying the fluid to the window (14a) or the sensor surface (16a). A compressed air distribution unit (22a) applies compressed air to the window (14a) or the sensor surface (16a) and discharges the applied water from the storage area (24a) or the reversing area (26a) of the wiper blade (12a) with the compressed air. Figure 1

Description

Title of the invention: Vehicle windshield wiper device and method of applying the device FIELD OF THE INVENTION

[0001] The present invention relates to a windscreen wiper device comprising at least one wiper blade for passing over a vehicle window and / or a sensor surface comprising a fluid supply line for supplying windscreen washer fluid and at least one windscreen washer fluid dispensing unit for applying the windscreen washer fluid to the vehicle window and / or the sensor surface. STATE OF THE ART

[0002] Such a windshield wiper device is already known.

[0003] DISCLOSURE AND ADVANTAGES OF THE INVENTION

[0004] The invention relates to a windscreen wiper device comprising at least one wiper blade for passing over a vehicle window and / or a sensor surface comprising a fluid supply line for supplying windscreen washer fluid and at least one windscreen washer fluid distribution unit for applying the windscreen washer fluid to the vehicle window and / or the sensor surface, a windscreen wiper device characterized by a compressed air distribution unit for applying compressed air to the vehicle window and / or the sensor surface and for discharging from the window and the sensor surface the water applied thereto or rainwater to discharge it from the wiper blade at least in the storage area or the reversal area of ​​the wiper blade to discharge it from the wiper blade with the compressed air.

[0005] The windscreen wiper device according to the invention allows for a high cleaning capacity, in particular by discharging the windscreen washer fluid or rainwater via the compressed air distribution unit, so that there is no residual water remaining on the window and the window can thus be cleaned very efficiently. This provides a high level of safety or comfort of use because, in particular, by discharging the windscreen washer fluid or rainwater, there is no residual water remaining on the window, so that the driver has a particularly clear view.

[0006] Preferably, the windshield wiper device is a window wiper or sensor window wiper or similar application device. Preferably, the wiping device is applied to a motor vehicle, in particular a passenger vehicle or a utility vehicle. However, the vehicle could also be a ship or an airplane or a locomotive or a comparable vehicle or any other means of travel.

[0007] Preferably, the wiping device is at least part of the windshield wiper. The wiping device is intended to clean a surface such as a window, for example, of a motor vehicle or a surface of a sensor or headlight or similar equipment of the vehicle.

[0008] The wiping device is preferably provided for cleaning vehicle windows, for example, the windshield or the rear window or a sensor surface with which a vehicle wiping drive is associated. The wiper blade cleans by passing over the window or the sensor surface and in particular if this sensor surface is integrated in the vehicle window. The wiper blade has a wiping lip which, in operation, is in contact with the vehicle window or the sensor surface. The wiper blade is coupled to a wiper arm or wiper arm of the wiping device. The wiper blade has an adapter which allows the mechanical coupling of the wiper blade to the wiper arm or wiper arm, in particular the wiper arm adapter. The wiper drive is used to move the wiper blade across the glass such as the vehicle window or the sensor surface.The term "designed for" or "intended for" means that it is a design or construction specifically intended for that purpose. The fact that an object is designed to perform a certain function means that this object performs this function in at least one application or operating state.

[0009] The fluid line is connected to the washer fluid (or water) dispensing unit and with a liquid reservoir or a liquid pump. The pump allows the liquid to be put under a certain pressure. The fluid line allows the washer fluid (or water) to be applied directly from the liquid reservoir or the pump or indirectly through a dispensing unit or the like, for example, a valve, an intermediate tank to supply the washer fluid dispensing unit. In particular, the line is in the form of a pipe. Alternatively, the line may also be a channel, for example, in the wiper arm.

[0010] The windshield washer fluid dispensing unit can be activated or deactivated. The windshield washer fluid dispensing unit can be activated for a forward movement and / or a return movement and can be switched off after a forward and return movement. The windshield washer fluid dispensing unit can be switched off before reaching the movement reversal position or the storage position or can only be activated in such areas, for example, in the middle of the window.

[0011] The windshield washer fluid dispensing unit has, in particular, one, and preferably several liquid nozzles. In particular, at least one windshield washer fluid nozzle is provided on the windshield wiper blade or the deflector or an end cap or the windshield wiper arm or the wiper blade adapter or the wiping lip therein. integrated or even constituted by the wiping lip. The windshield washer fluid distribution nozzles allow the application of windshield washer fluid in both directions of the wiping movement on the window, in particular, the vehicle window.

[0012] The windshield washer nozzles allow the window to be wetted, in particular over a large area with the windshield washer fluid. The windshield washer nozzles are oriented at least practically perpendicular to the main direction of extension of the windshield wiper blade. Preferably, two windshield washer nozzles are installed opposite each other. The windshield washer nozzles are at least practically parallel to the main plane of extension of the vehicle window. However, the windshield washer nozzles could also be installed pivotally or have two windshield washer nozzle orifices oriented in opposite directions.

[0013] Alternatively, a windshield washer fluid dispensing unit may be envisaged, in particular at least one windshield washer fluid dispensing nozzle which would be fixed, for example, integrated into the engine hood of the vehicle or into a water box of the vehicle. The term "main direction of extension" of an object designates a direction which is parallel to the longest edge of the smallest geometric parallelepiped which closely surrounds the object. The term "main plane of extension" of a component designates the plane parallel to the largest lateral surface of the smallest imagined parallelepiped, and which just still completely surrounds the object and which in particular passes through the center of the parallelepiped.The expression "at least practically" means in the present context that it is a deviation from a predetermined value which is less, in particular than 25%, preferably less than 10% and particularly preferably less than 5% of the predefined value.

[0014] The compressed air distribution unit is connected by a fluid connection to the compressed air tank or to a compressor. The compressor supplies compressed air under pressure. It is also possible to envisage a compressed air distribution unit connected to the existing compressed air system.

[0015] Preferably, the wiping device has at least one compressed air line. This compressed air line is preferably designed to directly compress air or transfer air from the compressed air tank or compressor or indirectly via a distribution unit or other components such as, for example, valves, intermediate tanks or the like to the compressed air distribution unit. In particular, the compressed air line is in the form of a pipe. Alternatively, the compressed air line may also be a compressed air channel, for example, in the wiper arm or the like.

[0016] The compressed air distribution unit is activated or deactivated. This compressed air distribution unit can be connected for the forward movement and switched off for the return movement or can be connected for the return movement and switched off for the forward movement. The windshield washer fluid distribution unit is designed so that before reaching the reversing position or the storage position, it is activated or it is activated only in a defined area, for example, in the edge areas of the window. The compressed air distribution unit comprises in particular a compressed air distribution nozzle, preferably several such nozzles. In particular, the compressed air nozzle of the wiper blade is located at the deflector or the end cap or the wiper arm or the wiper blade adapter or integrated in the wiper lip or formed by the wiper lip.

[0017] The compressed air nozzles allow compressed air to be sent in both directions of movement of the windshield wiper blade. The compressed air nozzles are at least practically perpendicular to the main direction of extension of the windshield wiper blade. Preferably, a compressed air distribution, in particular at least one and preferably all of the compressed air nozzles, are at least practically parallel to, in particular at least one and preferably all of the windshield washer fluid distribution directions of the windshield washer fluid distribution nozzles.

[0018] At least two compressed air nozzles are arranged opposite each other. The compressed air nozzles are oriented towards the vehicle window. The compressed air nozzle is designed to blow compressed air onto the window. Preferably, the compressed air nozzle directs the compressed air at a flat angle onto the vehicle window. The compressed air nozzles may, for example, be oriented towards the contact area of ​​the wiping lip with the window, in particular the vehicle window. It is also possible to envisage adjusting the compressed air nozzles, in particular by pivoting to position the compressed air as a function of the wiping speed on the window, in particular the vehicle window. The expression "applying the compressed air" means in particular that a fluid is applied to the surface, for example, of the window, in particular, in the direction of the surface.The direction of movement of the compressed air makes the smallest angle relative to the surface of the vehicle window and which is less than 45°, preferably less than 10° and in a particularly preferential manner, this angle is less than 5°.

[0019] The expression "evacuate" means that the windshield washer fluid or rainwater will no longer come into contact with the windshield wiper during this evacuation movement. The "movement reversal zone" corresponds to the zone which is delimited from below or from above for the reversal and which corresponds to an angle in particular of approximately 45°, preferably at least 30°. In particular, the wiper blade has a high reversal position which is in the area close to the A-pillar of the vehicle. In particular, the area close to the A-pillar is constituted by all the points which are distant from the A-pillar by a distance of less than 30 cm, preferably less than 15 cm and advantageously less than 10 cm and more advantageously less than 5 cm.

[0020] In particular, the wiper blade has a mass inversion position which is located in the area close to the water box or water channel or the lower edge of the window, in particular the windshield. In particular, the area close to the water box or the lower edge of the window is constituted by all the points which have, with respect to the water box or the lower edge of the window, a distance of less than 30 cm, preferably less than 15 cm, advantageously less than 10 cm and particularly advantageously, less than 5 cm. The expression "storage area" designates an area occupied by the wiper in the storage position and in which the wiper makes an angle, in particular of at least 45° and preferably of at least 30°. In particular, the storage position is a position in which the wiper is at rest. The storage position at least practically coincides with the low inversion position.

[0021] According to another feature, the direction of movement of the windshield washer fluid generated by the compressed air distributed by the compressed air distribution unit is from the wiping area of ​​the window, in particular, the vehicle window or the sensor surface, being directed essentially away from this area. High safety or advanced cleaning capacity and thus excellent operating comfort are achieved because, in particular, the blown discharge of the windshield washer fluid from the wiping area of ​​the window does not leave residual water on the window which could be carried back or spread back into the wiping area and impede the driver's vision. The discharge direction of the windshield washer fluid or rainwater produced by the compressed air distribution unit during the forward movement of the windshield wiper is oriented at least practically towards the A-pillar of the vehicle.The direction of discharge of the windshield washer fluid or rainwater produced by the compressed air distribution unit for the return movement of the windshield wiper is oriented practically towards the water box of the vehicle.

[0022] Preferably, the direction of the evacuation movement of the windshield washer fluid or rainwater produced by the compressed air distribution unit goes towards an edge of the window, in particular of the vehicle which is at the shortest distance from the windshield wiper. The expression "forward movement" corresponds to the direction of the movement going from the storage position towards the reversal position. The expression "return movement" designates the direction of the movement going from the reversal position towards the storage position. The expression " "wiping area" means in particular the area of ​​the window, in particular the vehicle window, which is crossed by the lip of the wiper blade, preferably by its contact. Alternatively, the direction of evacuation of the windscreen washer fluid or rainwater could also be at least partially and preferably at least practically parallel to the main direction of extension of the wiper blade towards the roof of the vehicle and / or the water box.

[0023] According to another characteristic, the compressed air distribution unit is constituted by the windshield washer fluid distribution unit. This reduces the complexity of manufacturing and assembly since in particular the compressed air distribution unit constituted by the windshield washer fluid distribution unit so that only a reduced number of components are required.

[0024] The windshield wiper device has at least one supply unit which, as a windshield washer fluid distribution unit and / or for the application of compressed air, functions as a compressed air distribution unit. Preferably, the supply unit is formed at least by the windshield washer fluid distribution unit which also constitutes the compressed air distribution unit. Preferably, the compressed air nozzle is formed by at least one windshield washer fluid spray nozzle. Preferably, at least one compressed air supply line is formed by at least one fluid line. This fluid line allows compressed air and windshield washer fluid to pass through. This fluid line allows the supply unit to be supplied with windshield washer fluid or with compressed air.

[0025] According to another feature, at least one T-connector is provided for supplying compressed air and windshield washer fluid to the fluid line. This simplifies manufacturing because, in particular, a T-connector is a very simple component to manufacture. This provides an economical construction because the T-connector is an economical standard component. The T-connector allows the windshield washer fluid reservoir and the compressed air reservoir to be connected to the fluid line to supply the supply unit with compressed air or windshield washer fluid via a fluid connection. The T-connector is a plastic part. The compressed air is designed to control the supply of windshield washer fluid to the fluid line. Preferably, the compressed air prevents the supply of windshield washer fluid via the T-connector of the supply line, in particular due to the back pressure and / or blocks this supply.The compressed air is at a pressure which, in the T-piece, is higher than the pressure of the windshield washer fluid. Preferably, the windshield washer fluid supply can be switched automatically by the compressed air.

[0026] According to another characteristic, the windshield washer fluid distribution unit and the compressed air distribution unit are at least partly in a single piece. Advantageously, the assembly complexity will be reduced because, in particular, the compressed air and washer fluid distribution unit, which is a single component, has a particularly low number of parts. There is also a very high degree of flexibility because, in particular, the washer fluid nozzles and the compressed air distribution unit operate independently of each other. This provides advantageous constructional and economic properties because, in particular, the compressed air and washer water distribution unit, which is made from a single piece, allows for only a small number of components. In addition, the compressed air distribution unit and the washer fluid distribution unit are monolithic, in particular in the form of a single component obtained by plastic injection.The compressed air distribution unit and the windshield washer fluid distribution unit are designed as one component and the windshield washer fluid distribution unit is connected to at least one fluid line and the compressed air distribution unit is connected to at least one compressed air line.

[0027] It could also be envisaged that the windscreen washer fluid and compressed air distribution unit have a one-piece base body which has screw-on compressed air and windscreen washer fluid nozzles. The expression "one-piece" means that it is a material connection, for example, by a welding process, a bonding process, an injection overmolding process and / or any other technically advantageous process for producing a part such as, for example, for producing a cast iron part by production in a one- or multi-component injection process and advantageously also from a blank.

[0028] According to another feature, at least one valve is provided, in particular a multi-way valve for switching the supply of compressed air or windshield washer fluid. A particularly high cleaning capacity and cleaning efficiency will be achieved because in particular the valve allows the supply and cut-off of compressed air and / or windshield washer fluid to evacuate rainwater or windshield washer fluid from the window in a targeted manner. The T-piece forms in particular an electronically controlled multi-way valve. Alternatively, two check valves or non-return valves or throttle valves connected by a fluid connection to the T-piece can also be provided. It is also possible to envisage that the valve, in particular the multi-way valve, is designed to switch the windshield washer fluid line and the compressed air line separately and independently.It is also possible to consider that the valve, in particular the multi-way valve, allows the windshield washer fluid line to be switched with compressed air.

[0029] According to another characteristic, the windshield wiper device comprises at least one heating unit for heating at least the compressed air. Advantageously, There is particularly high safety because the heating unit can heat a window so that the residual water will be wiped off more quickly. Advantageously, there is high user comfort because the heating unit can remove fog from the window. The heating unit is in the form of a heat exchanger to transfer heat from the vehicle engine to compressed air or windshield washer fluid. The heated compressed air also dries the window, especially the vehicle window. Alternatively, the heating unit is an electric heating unit. The wiping device has a window defrosting program to, for example, defrost a frosted window with hot compressed air.

[0030] The invention also relates to a vehicle equipped with a wiping device. This provides high safety or comfort of use because, in particular, the wiping device allows very efficient cleaning of the window. The vehicle has at least one control and / or regulation unit. The control or regulation unit is, for example, the vehicle control device. The term "control or regulation unit" refers in particular to a unit, in particular, control electronics and this control electronics refers to a unit with a processor and a memory containing the recording of the operating program.

[0031] A method is also proposed with at least one step of blowing off the windscreen washer fluid or rainwater. This provides a high cleaning capacity and high cleaning efficiency because, in particular, the evacuation of the windscreen washer fluid or rainwater by the compressed air distribution unit prevents any liquid from remaining on the window, so that the window is reciprocally cleaned in a particularly efficient manner. Brief description of the drawings

[0032] The present invention will be described below in more detail with the aid of an embodiment of a windshield wiper device shown in the accompanying drawings in which:

[0033] [Fig.l] vehicle equipped with a windshield wiper device,

[0034] [Fig.2] fluid line of the windshield wiper device with a T-piece,

[0035] [Fig.3] schematic flowchart of a method for managing the windshield wiper device, and

[0036] [Fig.4] alternative embodiment of a windshield wiper device.

[0037] DESCRIPTION OF EMBODIMENTS OF THE INVENTION

[0038] [Fig.l] shows a vehicle 10a. The vehicle 10a has a window. The window is a vehicle window 14a. The vehicle window 14a is the windshield. Alternatively, the window 14a could also be the rear window or a comparable glass 14a. Alternatively, the glass could also be a sensor surface 16a.

[0039] The vehicle 10 has a windshield wiper device. The windshield wiper device (or wiping device) has a wiper arm 48a. The wiper arm 48a is attached to the wiper drive. The windshield wiper device has a wiper blade 12a. The wiper blade 12a is attached to the wiper arm 48 by a wiper blade adapter. The wiper blade 12a has a wiping lip 46a. The wiping lip 46a touches the window. The wiper blade 12a moves over the window 14a or the sensor surface 16a. The windshield wiper device has a fluid supply line 18a. The fluid supply line 18a is fluidically connected to the windshield washer fluid reservoir 58a or a windshield washer fluid pump. The fluid supply line 18a supplies the windshield washer fluid. The fluid supply line 18a is also fluidically connected to a compressed air reservoir 60a.The fluid supply line 18a supplies compressed air. The windshield wiper device has a washer fluid distribution unit 20a. This washer fluid distribution unit 20a applies washer fluid to the window 14a or the sensor surface 16a.

[0040] The windshield wiper device has a compressed air distribution unit 22a. This compressed air distribution unit 22a is implemented by the windshield washer fluid distribution unit 20a. The compressed air distribution unit 22a applies compressed air to the window 14a of the vehicle. The compressed air distribution unit 22a is provided to discharge the windshield washer fluid applied to the window 14a or rainwater from the storage area 24a or the movement reversal area 26a of the windshield wiper blade 12a with the compressed air to discharge it from the windshield wiper blade 12a. The compressed air generates a movement direction 38 of the windshield washer fluid. The direction of movement 38 of the windshield washer fluid is oriented away from the wiping zone 28a of the window 14a and / or the sensor surface 16a. The wiping zone 28a is the area traveled by the wiping lip 46a of the windshield wiper blade 12a.The direction of movement 38a in the reversal zone 26a is oriented towards the column A of the vehicle 10a.

[0041] The direction of movement 38a goes from the storage area 24a passing over a water box of the vehicle 10a. The storage area 24a is an area between the storage position of the wiper arm 48a and the wiping position with an angle of 30° relative to the storage position of the wiper. The reversal area 26a is the area between the reversal position in the area close to the column A of the wiper arm 48a and a wiping position with an angle of 30° relative to the reversal position of the area close to the column A of the wiper. Alternatively, the direction of movement 38a of the windshield washer fluid or the water rain could also be directed in the longitudinal direction of the wiper blade 12a. The direction of movement 38a could be directed in the direction of the roof of the vehicle or towards the engine hood of the vehicle.

[0042] The vehicle 10a has a control or regulation unit 44a. This control or regulation unit 44a constitutes the control apparatus of the vehicle 10a. The windshield wiper device has a heating unit 34a. This heating unit 34a allows the compressed air to be heated. The heating unit 34a is in the form of a heat exchanger. The heat exchanger allows the heat released by the vehicle engine to be transferred to the compressed air or the windshield washer fluid. Alternatively, the heating unit 34a may also comprise an electric heating element.

[0043] [Fig.2] shows a part of the windshield wiper device. The windshield wiper device has a T-piece 30a. The T-piece 30a has a supply connection 54a. The supply connection 54a is connected to the fluid supply line 18a. The connection piece 30a has a compressed air connection 52a. The compressed air connection 52a is connected to the compressed air line by a fluid connection. The compressed air line is connected by a fluid connection to the compressed air reservoir 60a or to a compressor. The T-piece 30a has a washer fluid connection 50a. The washer fluid connection 50a is connected to the washer fluid line by a fluid connection. The washer fluid line is connected to a washer fluid reservoir 58a and a pump. The T-piece 30a is used to supply compressed air and washer fluid to the fluid supply line 18a. The washer fluid is under pressure.Compressed air is under pressure. The pressure of compressed air is greater than that of windshield washer fluid.

[0044] Compressed air is provided to automatically prevent or block the supply of windshield washer fluid. A T-piece 30a with a windshield washer fluid valve may be envisaged. The windshield washer fluid valve may be provided on the windshield washer fluid connection 54a. The windshield washer fluid valve could also be controlled by compressed air. Alternatively, the T-piece 30a has a compressed air valve. The compressed air valve may be installed in the compressed air connection. Alternatively, the supply connection 54a may have a supply valve. The windshield wiper device has a valve 32a. The valve 32a is provided on the compressed air connection 52a. The valve 32a is designed to activate or deactivate the supply of compressed air. The valve 32a may also be a multi-way valve. The multi-way valve is electronically controlled.Valve 32a may also be designed to switch between the compressed air supply and the washer fluid supply.

[0045] [Fig.3] shows a schematic flowchart of a method for managing the windshield wiper device.

[0046] In a method step 36a, the wiper blade 12a is moved by a reciprocating movement on the window. The wiper blade 12a is moved in its outward movement towards the column A of the vehicle 10a. The wiper blade 12a returns by the reverse movement towards the water box of the vehicle 10a. The rainwater is wiped off the window by the wiping movement.

[0047] In at least one further method step 40a, the windshield washer fluid is applied to the window. The windshield washer fluid cleans the window. The windshield washer fluid is sprayed in front of the wiper lip 46a in the direction of the wiping movement.

[0048] In a further method step 42a, the windshield washer fluid or rainwater is blown off. The windshield washer fluid or rainwater is blown off into the storage area 24a or into the movement reversal area 26a of the windshield wiper blade 12a. The windshield washer fluid is blown off from the wiping area 28a. If the compressed air is activated, it flows through the fluid line 18a. The residual liquid is blown off with the compressed air. The windshield washer fluid supply is blocked by the compressed air.

[0049] [Fig. 4] shows another embodiment of the invention. The following description and the drawings are mainly limited to the differences between the embodiments; for components having the same references, reference will be made to the drawings and the description of the other exemplary embodiment according to Figures 1 to 3. To distinguish the embodiments, the numerical reference associated with a component will be supplemented by the suffix b replacing the suffix a used in Figures 1 to 3.

[0050] [Fig.4] is a schematic representation of the windshield wiper device variant. This windshield wiper device variant comprises a wiper blade 12a. The wiper blade 12a has a wiping lip 46a. The wiping lip 46a passes over the window. This windshield wiper device variant has a windshield washer fluid dispensing unit 20b. This windshield washer fluid dispensing unit 20b dispenses windshield washer fluid onto the window.

[0051] The windshield wiper device variant has a compressed air distribution unit 22b. This compressed air distribution unit 22b applies compressed air to the window and blows away the windshield washer fluid and / or rainwater. The windshield washer fluid distribution unit 20b and the compressed air distribution unit 22b are in one piece. The windshield wiper device, as a variant, has a fluid supply line 18b. The fluid supply line 18b connects the windshield washer fluid distribution unit 20b by a fluid connection to the windshield washer fluid reservoir 58b. This windshield wiper device variant has a compressed air supply line 56b. This compressed air supply line 56b connects, by a fluid connection, the compressed air distribution unit 22b to the compressed air tank 60b. The windshield washer fluid distribution unit 20b is implemented independently of the compressed air distribution unit 22b.

[0052] NOMENCLATURE OF MAIN ELEMENTS

[0053] (references are presented without alphabetical suffixes)

[0054] 10 Vehicle

[0055] 12 Windshield wiper blade

[0056] 14 Glass

[0057] 16 Sensor surface

[0058] 18 Driving

[0059] 20 Windshield washer fluid distribution unit

[0060] 22 Compressed air distribution unit

[0061] 24 Storage area

[0062] 26 Inversion Zone

[0063] 28 Wiping area

[0064] 30 T-fitting

[0065] 32 Valve

[0066] 34 Heating unit

[0067] 36 Process step

[0068] 38 Direction of movements

[0069] 40 Process step

[0070] 42 Process step

[0071] 44 Control unit

[0072] 46 Wiper lip

[0073] 48 Wiper arm

[0074] 50 Windshield washer fluid connection

[0075] 52 Compressed air connection

[0076] 54 Windshield washer fluid connection

[0077] 58 Windshield washer fluid reservoir

[0078] 60 Compressed air tank

Claims

Claims

1. A windscreen wiper device comprising at least one wiper blade (12a, 12b) for passing over a vehicle window (14a, 14b) and / or a sensor surface (16a, 16b) comprising a fluid supply line (18a, 18b) for supplying windscreen washer fluid and at least one windscreen washer fluid distribution unit (20a, 20b) for applying the windscreen washer fluid to the vehicle window (14a, 14b) and / or the sensor surface (16a, 16b), the windscreen wiper device characterized by - a compressed air distribution unit (22a, 22b) for applying compressed air to the vehicle window (14a, 14b) and / or the sensor surface (16a, 16b) and for discharging from the window (14a, 14b) and the sensor surface (16a, 16b) sensor (16a, 16b) the water applied thereto or the rainwater to discharge it from the wiper blade (12a, 12b) at least into the storage area (24a, 24b) or the reversing area (26a, 26b) of the wiper blade (12a,12b) to evacuate it from the wiper blade with compressed air.,

2. A windscreen wiper device according to claim 1, characterized by a direction of movement of the windscreen washer fluid generated by the compressed air emitted by the compressed air distribution unit being substantially away from the wiping area (28a, 28b) of the window, in particular the vehicle (14a, 14b) and the sensor surface (16a, 16b).

3. Windscreen wiper device according to one of the preceding claims, characterized in that the compressed air distribution unit (22a) is constituted by the windscreen washer fluid distribution unit (20a).

4. Windscreen wiper device according to one of the preceding claims, characterized by at least one T-connector (30a) for supplying compressed air or windscreen washer fluid from the fluid line (18a).

5. Windscreen wiper device according to claim 1 or 2, characterized in that the windscreen washer fluid distribution unit (20b) and the compressed air distribution unit (22b) are at least partly made in one piece.

6. Windscreen wiper device according to one of the preceding claims, characterized by at least one valve (32a, 32b), in particular a multi-way valve, for switching the supply of compressed air and / or windscreen washer fluid.

7. Windscreen wiper device according to one of the preceding claims, characterized by at least one heating unit (34a, 34b) for heating at least the compressed air.

8. Vehicle (10a, 10b) equipped with a windshield wiper device according to one of the preceding claims.

9. Method for managing the windscreen washer device according to one of claims 1 to 7, characterized in that in at least one method step (42a, 42b) the windscreen washer fluid or rainwater is blown away.

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