DESCRIPTION:

The invention is concerned with a ventilation opening device for an air condi tioning system of a vehicle, wherein the ventilation opening device comprises an air inlet that is connectable with an air conditioning device of the air condi- tioning system and a ventilation opening that is designed to eject conditioned air. The invention is further concerned with a vehicle interior of a vehicle with an air conditioning system comprising an air conditioning device, at least one such ventilation opening device and at least one connecting tube, wherein the air conditioning device is designed to provide conditioned air for the at least one ventilation opening device. The ventilation opening device is fur thermore positioned in the vehicle interior such that it is surrounded by a ve hicle interior element. The ventilation opening device comprises an air inlet that is connected with the air conditioning device by the connecting tube and a ventilation opening that is designed to eject conditioned air supplied by the connected air conditioning device. The invention is also concerned with such an air conditioning system for a vehicle.

Especially in winter times, there is a need for a ventilation opening of a vehi cle air conditioning system placed close to a windshield of the vehicle which is designed to defog or defrost the windshield if necessary.

DE 202 01 314 U1 discloses a defrost device for a windshield of a vehicle comprising a defrost channel with openings for air inlet. The defrost channel also comprises air outlet openings which are positioned in direction to the windshield. With the help of moveable parts for air guidance, which are placed within the opening for air inlet, mounting tolerances of the defrost channel can be compensated by moving the parts for air guidance.

DE 10 2017 003 289 A1 discloses a system for ventilation of a vehicle interi or comprising an airflow channel with at least one air outlet which is connect ed to the airflow channel. The system also comprises a device to guide air which can be moved between a defrost position and a ventilation position. The system can thus be operated in two different modes.

WO 2014/044977 A1 discloses a defogging device for a motor vehicle. A longitudinal position of a central air outlet of this defogging device is movable between different positions in each of which air ejection is possible. Due to this possible movement of the central air outlet it is possible to adapt to dif ferent vehicle models which each show a different profile of a front panel.

The ventilation opening for a defrost and/or defog function of the air condi tioning system of a vehicle is typically positioned at a fixed position and air is ejected through the ventilation opening upon activation of the defrost and/or defog function. However most of the active time of use of a vehicle, this ven tilation opening designed to defog or defrost the windshield of the vehicle is not used. The result is that the ventilation opening gathers dust quickly and affects the interior design of the vehicle constantly. Furthermore, when bright sunlight hits a dashboard of the vehicle an interior feature like for example the ventilation opening reflects in the windshield even if it is black and may distract the driver.

It is an object of the present invention to provide a solution for a vehicle with a ventilation opening intended for defogging and defrosting of a window pane of the vehicle so that the ventilation opening has negligible impact on a vehi cle interior. Another object of the present invention is to provide a solution for such a ventilation opening for a vehicle so that creation of distracting reflec tions is prevented. The object is accomplished by the subject matter of the independent claims. Advantageous developments with convenient and non-trivial further embodi ments of the invention are specified in the following description, the depend ent claims and the figures.

The underlying assumption of the invention is that there is no benefit in hav ing a ventilation opening for a vehicle which is always visible for a user of a vehicle even if air ejection through the ventilation opening is inactive at the moment. A solution for this problem is given by a ventilation opening device which is designed to occupy an active and an inactive position.

The inventive ventilation opening device for an air conditioning system of a vehicle comprises an air inlet that is connectable with an air conditioning de vice of the air conditioning system and a ventilation opening that is designed to eject conditioned air. The ventilation opening device is characterized in that the ventilation opening device further comprises a moving mechanism device. The ventilation opening device is thus designed to be moved by the moving mechanism device between an inactive position and an active posi tion dependent on whether conditioned air ejection through the ventilation opening device is activated or deactivated. In the inactive position the ventila tion opening device is not intended for conditioned air ejection. In case the ventilation opening device is positioned in an intended mounting position within the vehicle interior and conditioned air is supplied by the connected air conditioning device and if the ventilation hole device is placed in this inactive position it is impossible to eject air directed towards a windshield or another window of the vehicle in order to defog or defrost this window pane of the vehicle. In contrast, the active position is intended for conditioned air ejec tion. In order to defog or defrost the window pane of the vehicle, the ventila tion opening device always has to be moved by the moving mechanism de- vice into the active position first.

It is for example possible that the inactive position is a position in which the ventilation opening itself is not visible for a user of the vehicle whereas in the active position the ventilation opening can be at least partially visible for the user. In this case the inactive position allows for a ventilation opening device which can be moved in a position in which the ventilation opening is hidden from view of the user if the ventilation opening device is not needed. Thus the ventilation opening is only in view of the user of the vehicle when the defogging or defrosting mode of the air conditioning system of the vehicle is needed or wanted, i.e., activated. In all other situations the ventilation open ing device can be moved to the inactive position in which no conditioned air ejection takes place. The ventilation opening device is thus adaptable to a current need for a defog or defrost mode of the air conditioning system. The advantage of the inventive ventilation opening device is hence its negligible impact on the vehicle interior in which it can be positioned due to possible movement between the inactive and the active position.

The invention further comprises a vehicle interior of a vehicle with an air con- ditioning system. The air conditioning system comprises an air conditioning device, at least one ventilation opening device as it was described above and at least one connecting tube. The air conditioning device is designed to pro vide conditioned air for the at least one ventilation opening device. The venti lation opening device is positioned in the vehicle interior such that it is sur- rounded by a vehicle interior element, for example by a cover element of a panel of the vehicle that contacts a windshield of the vehicle. The ventilation opening device comprises an air inlet that is connected with the air condition ing device by the connecting tube and a ventilation opening that is designed to eject conditioned air supplied by the connected air conditioning device. The ventilation opening device further comprises a moving mechanism de vice and is designed to be moved by the moving mechanism device between an inactive position and an active position dependent on whether conditioned air ejection through the ventilation opening device is activated or deactivated. In the inactive position the ventilation opening device is not intended for con- ditioned air ejection meaning that when the ventilation opening device is de activated it is positioned in the inactive position. In contrast, the active posi tion is intended for conditioned air ejection meaning that when the ventilation opening device is activated it is positioned in the active position. The inactive position is a retracted position with respect to the surrounding vehicle interior element while the active position is an extended position with respect to the surrounding vehicle interior element. By the moving mecha nism device, the ventilation opening device can hence be moved perpendicu- lar to the surface of the surrounding vehicle interior element. In the retracted position the ventilation opening itself is recessed with respect to the surface of the surrounding vehicle interior element and could be for example hidden from view of the user of the vehicle if covered up by an additional part of the ventilation opening device. In the extended position the ventilation opening device is moved out relative to the surrounding vehicle interior element and/or the ventilation opening is at least partially visible for the user.

The vehicle interior is designed to comprise a ventilation opening device of an air conditioning system which is intended to defog and/or defrost an win- dow pane of the vehicle but in order to defog and/or defrost the window pane it has to be put in the active position. Since the function of the ventilation opening device is only given when it is placed in the active position. As long as the ventilation opening device is not activated, it is positioned in the inac tive position which is retracted with respect to the surrounding vehicle interior element and in which no ejection of conditioned air towards the window pane of the vehicle is possible. With the moving mechanism device, the ventilation opening device is though easily switchable between the inactive position and the active position by moving the ventilation opening device from the retract ed position to the extended position. For example within a short amount of time after manual activation of the defog mode of the air conditioning system by a user of the vehicle, the ventilation opening device is moved from the retracted position to the extended position and then defogging of the window pane of the vehicle takes place. The advantage of the inventive vehicle inte rior is that it is free of a viewable ventilation opening as long as air ejection through the ventilation opening is deactivated. The ventilation opening has hence negligible impact on the vehicle interior because of its two possible positions. Though, intermediate positions may be possible and also visible. The invention also comprises the combinations of the features of the different embodiments.

In an embodiment of the inventive vehicle interior the ventilation opening de- vice comprises a shutter element. This shutter element is designed to sepa rate the ventilation opening from the vehicle interior in the retracted position. The shutter element is for example designed as a moveable cover element which can be moved from a first position to a second position while in the second position it completely covers the ventilation opening and hides it from the view of the user of the vehicle. This movement of the shutter element is for example carried out by the moving mechanism device or by a shutter moving mechanism device comprised by the ventilation opening device. In the extended position the ventilation opening is at least partially visible for the user and opened up towards the vehicle interior while in the retracted posi- tion it is hidden from view of the user by the shutter element. It is thus possi ble to guarantee that the ventilation opening device is unable to eject condi tioned air in the inactive position, which corresponds to the retracted position, due to the fact that the shutter element separates the ventilation opening from the vehicle interior in this position. By removing the shutter element from the top of the ventilation opening, the ventilation opening device is posi tioned in the extended position and ejection of conditioned air is then possi ble. The shutter element enables the ventilation opening device to switch between the active and the inactive position of the ventilation opening device. This change in position is furthermore relatively simply realized due to the fact that only the shutter element has to be moved in order to change posi tion of the ventilation opening device. When the ventilation opening is posi tioned in the retracted position, the vehicle interior is as well designed with low-maintenance because a closed surface of the surrounding vehicle interi or element can be realized if a top side of the shutter element is positioned in flush with the surface of the surrounding vehicle interior element. This reduc es maintenance for removal of dust from the ventilation opening as it is cov ered up whenever it is inactive. Furthermore, when the ventilation opening is covered up no distracting reflections are created on the windshield due to sunlight hitting the ventilation opening which is reflected on the windshield. In another embodiment of the inventive vehicle interior, the moving mecha nism device is designed to move the ventilation opening from the extended position to the retracted position by lowering the ventilation opening relative to a surface of the surrounding vehicle interior element and covering a result ing opening in the surrounding vehicle interior element with the shutter ele ment. In a first step the ventilation opening is moved downwards relative to the surface of the surrounding vehicle interior element. This position which is lowered compared to the surface of the surrounding vehicle interior element corresponds to the retracted position. Once the ventilation opening has been moved downwards as described the hole which remains in the surrounding vehicle interior element due to this movement of the ventilation opening de vice is closed up by moving the shutter element in a position in which it co vers the resultant hole, i.e. , the resultant opening in the surrounding vehicle interior element. Due to this placement of the shutter element on top of the ventilation opening, the ventilation opening is well hidden from view of the user as long as it is in the retracted position. In the extended position the ventilation opening can be for example positioned in the plane of the sur rounding vehicle interior element in a way that the ventilation opening is flush with the surface of the surrounding vehicle interior element. Alternatively it can be moved up in an extended position in which it is elevated relative to the surrounding vehicle interior element. In the described extended position the ventilation opening is at least partially visible for the user. In contrast, in the retracted position, it is completely hidden from view of the user due to the shutter element which is covering the resultant opening in the surrounding vehicle interior element. By sinking the ventilation opening into the surround ing vehicle interior element, which comprises an opening in which the ventila tion opening device can be sunk in, the vehicle interior is designed in a way that a quick and simple switch from the inactive retracted position of the ven tilation opening device to the active extended position is possible.

This embodiment can further comprise that the moving mechanism device is designed to move the lowered ventilation opening sideways relative to the resultant opening in the surrounding vehicle interior element. Furthermore, the moving mechanism device is designed to move the shutter element to the previous position of the lowered ventilation opening. It is thus not neces sary to move the ventilation opening so far downwards compared to the sur face of the surrounding vehicle interior element that the shutter element can be placed on top of the ventilation opening as it is possible to perform a movement of the lowered ventilation opening aside so that the shutter ele ment can be placed at the position at which the ventilation opening was placed before it was laterally moved. The ventilation opening device itself or the surrounding vehicle interior element comprises a cavity in which the ven- tilation opening can be positioned while it is in the described sideways posi tion. This cavity can lie in the same plane as the shutter element. The moving mechanism device is designed to move the ventilation hole downwards or upwards as well as sidewards to or away from the cavity. The described em bodiment enables a space-saving design of the vehicle interior due to a flat formed design of the ventilation opening device compared to the previously described embodiment in which the shutter element is placed on top of the lowered ventilation opening.

Another preferable embodiment of the invention provides that the shutter el- ement is formed as a housing of the ventilation opening device. The housing has a lateral opening on the side of the housing which is oriented towards a window pane of the vehicle, e.g., a windshield and in which the ventilation opening is placed. This opening is for example placed on one side only of in total six sides of a cube-shaped or cuboid-shaped housing. On the side op- posite to the side with the opening, the side of the housing is closed. Also the top side of the housing is closed can lie in a plane of the surface of the sur rounding vehicle interior element when the ventilation opening device is placed in the retracted position. The moving mechanism device is designed to move the ventilation opening from the retracted position to the extended position by moving the housing upwards until at least a part of the ventilation opening is positioned above the surface of the surrounding vehicle interior element. In the extended position the user of the vehicle, who is seated at one of the front seats of the vehicle, can see the closed sides of the housing but not the opening which is oriented towards the windshield and from which conditioned air is ejected towards the windshield. The surrounding vehicle interior ele- ment is for example a cover element of a panel of the vehicle that contacts the windshield. In the extended position the ventilation opening is then moved out relative to the cover element of the panel. In the retracted position the closed top side can lie in the plane of a surface of the cover element so that the ventilation opening is not visible for the user of the vehicle because it is covered by the closed top side of the housing, i.e. , the shutter element. The ventilation opening device is thus formed like a drawer. When it is not needed the drawer is slid into the surrounding vehicle interior element and is hence completely hidden from the vehicle interior. When the defroster or defogger is needed, the ventilation opening slides out like a drawer and is moved to the extended position in which at least the closed sides of the housing are viewable by the user of the vehicle. After defrosting or defogging of the windshield, the ventilation opening device is moved back into the sur rounding vehicle interior element leaving behind the vehicle interior with no visible ventilation opening of the air conditioning system to defog or defrost the windshield of the vehicle. Therefore no dust catching parts of the ventila tion opening device are openly positioned in the vehicle interior resulting in a tidy looking interior as well as an interior with reduced elements in need of frequent thorough clean up due to accumulation of dust around the ventila tion opening.

In another embodiment the surrounding vehicle interior element is a cover element of a panel of the vehicle that contacts a windshield. Additionally or alternatively the surrounding vehicle interior element is a cover element of a panel of the vehicle that contacts a side window of the vehicle. The ventila- tion opening device can thus be moved relative to the cover element of the panel of the windshield and/or the cover element of a panel of one of the side windows of the vehicle. Alternatively or additionally, surrounding vehicle inte rior element is a cover element of an A-, B- or C-pillar of the vehicle. With the described ventilation opening device, defrosting and/or defogging of the windshield and/or the side windows of the vehicle is possible. In general, var ious positions of the ventilation opening device within the vehicle interior are possible, resulting in a versatile vehicle interior design.

In a different embodiment of the invention the surrounding vehicle interior element is a tub-shaped indentation positioned at the root of the windshield. In future vehicles, a transparent display can be positioned between a wall of this tub-shaped indentation and a seat of the user. In such a vehicle, there is a short distance between the windshield, which can be referred to as a front window of the vehicle, and the scoop-like space in the front of the vehicle between the wall of the tub-shaped indentation and the display. Neverthe less, it is occasionally the case that the front window of the described vehicle has to be defrosted and/or defogged, e.g., in winter times. The described vehicle interior offers little room for incorporation of a classical ventilation opening in the scoop-like space. The ventilation opening device is thus placed in the wall of the tub-shaped indentation.

The shutter element itself is formed as a housing of the ventilation opening device wherein the housing has an opening on the top side of the housing which is oriented towards the windshield and in which the ventilation opening is placed. On the side opposite of the side with the opening, the housing can be completely closed. On a side perpendicular to the opening side which is referred to as a lateral side, the housing is also closed. This lateral side lies in the plane of the surface of the tub-shaped indentation in the retracted posi tion. The shutter element is hence formed like a drawer which can be moved relative to the surface of the tub-shaped indentation. The moving mechanism device is designed to move the ventilation opening from the retracted posi tion to the extended position by moving the housing sidewards until at least a part of the ventilation opening is positioned above the surface of the tub shaped indentation. In the retracted position the housing is completely moved in into a cavity in the tub-shaped indentation so that only the closed lateral side which resembles a drawer front is positioned flush with the sur face of the tub-shaped indentation. If the tub-shaped indentation is made out of a special material for example a wood application this wood application in not interrupted by a classical ventilation opening for a defroster and defogger but only comprises a part in which the closed lateral side of the housing is visible. Even if only little space is available within the vehicle interior, it is thus possible to allow for a well-designed ventilation opening within the vehicle by designing it in the described drawer shape and movable between the active and the inactive position.

According to another embodiment of the inventive vehicle interior, the con necting tube is flexible and designed to maintain the connection between the air conditioning device and the ventilation opening device in the retracted and the extended position of the ventilation opening device and during a move ment between the retracted position and the extended position. Due to the flexible connecting tube, it is possible to connect the described ventilation opening device to an ordinary air conditioning device. This means that there is no need for a specially equipped air conditioning device of an air condition ing system in order to allow for incorporation of the described ventilation opening device into a common air conditioning system but only for the de scribed flexible design of the connecting tube. The connecting tube is placed at the air inlet of the ventilation opening device and connected with an air outlet of the air conditioning device. It is thus simply accomplished to inte grate the ventilation opening device into an existing or classically designed air conditioning system of a vehicle.

In another embodiment of the inventive vehicle interior, the vehicle interior comprises a control device for controlling the air conditioning system. The control device is designed to trigger the moving mechanism device to move the ventilation opening from the retracted position to the extended position and activate conditional air ejection through the ventilation opening upon manually or automatically activating a defog mode or a defrost mode of the air conditioning system. A user of the vehicle can for example manually acti vate the defog mode by operating a display equipment in the vehicle interior. Such a display equipment can be constructed as a human machine interface, a touchscreen and/or a touchpad and can be manually operated by the user by pushing a button, a rotary switch or touching an area of the touchscreen or touchpad. After the manual activation, the defog mode is activated by the control device and the moving mechanism is activated as well so that the ventilation opening is moved to the extended position and air is ejected through the ventilation opening in the extended position.

It is alternatively or additionally possible to enable an automatic activation of defog or defrost mode, for example depending on measured vehicle interior humidity or measured outside temperature. Alternatively or additionally to the described activation with help of the display equipment it is also possible to remote control the air conditioning system. For example could the user use an application on a mobile device to operate settings of the air conditioning system which are sent to the control device of the air conditioning system. With this remote operation of the air conditioning system it is thus also possi ble to activate defog or defrost mode. The movement of the ventilation open ing from the retracted position to the extended position takes hence only place if one of the named modes of the air conditioning system, the defog mode or the defrost mode, is actually activated. This guarantees that the ventilation opening is only visible whenever the extended position was asked for by the user of the vehicle or whenever predefined activation conditions were met.

The control device may comprise one or more microprocessors and/or one or more microcontrollers. Further, the control device may comprise program code that is designed to perform a method when executed by the processing unit. The program code may be stored in a data storage of the processing unit. The method comprises the above described movement of the ventilation opening between the two positions dependent on whether defrost or defog mode of the air conditioning system was activated or deactivated.

The invention also comprises an air conditioning system for a vehicle. This air conditioning system comprises an air conditioning device, at least one ventilation opening device as it was described above and at least one con necting tube connecting the air conditioning device with the at least one ven tilation opening device. The invention also comprises embodiments of the inventive air conditioning system that comprise features that correspond to features as they have already been described in connection with the embod iments of the inventive interior vehicle. For this reason, the corresponding features of the embodiment of the inventive air conditioning system are not described here again.

The invention also comprises a vehicle with a vehicle interior as described before. This inventive vehicle is preferably designed as a motor vehicle, in particular as a passenger vehicle or a truck, or as a bus or a motorcycle. The invention also comprises embodiments of the inventive vehicle that comprise features that correspond to features as they have already been described in connection with the embodiments of the inventive vehicle interior. For this reason, the corresponding features of the embodiments of the inventive vehi cle are not described here again.

The invention furthermore comprises embodiments of the above described inventive ventilation opening device that comprise features as correspond to features as they have already been described in connection with the embod iments of the inventive vehicle interior. For this reason, the corresponding features of the embodiments of the inventive ventilation opening device are not described here again.

In the following an exemplary implementation of the invention is described. The figures show:

Fig. 1 a schematic illustration of a vehicle with an air conditioning system;

Fig. 2a, b, c a schematic illustration of a vehicle interior with a ventilation opening device in a retracted and an extended position;

Fig. 3a, b a schematic illustration of a vehicle door with a ventilation opening device in a retracted and in an extended position; Fig. 4a, b a schematic illustration of a side view of the vehicle door with the ventilation opening device in the retracted and the extend ed position; Fig. 5a, b a schematic illustration of a ventilation opening device with a shutter element like a housing in the retracted and the extend ed position

Fig. 6 a schematic illustration of a ventilation opening device in a vehicle with a tub-shaped indentation; and

Fig. 7 a schematic illustration of a ventilation opening moved out of the tub-shaped indentation of a vehicle. The embodiments explained in the following are preferred embodiment of the invention. However, in the embodiments, the described components of the embodiments each represent individual features of the invention which are to be considered independently of each other and which each develop the in vention also independently of each other and thereby are also to be regarded as a component of the invention in individual manner or in another than the shown combination. Furthermore, the described embodiments can also be supplemented by further features of the invention already described.

In the figures identical reference signs indicate elements that provide the same function.

Fig. 1 shows the vehicle 10 with a vehicle interior 12. The vehicle 10 com prises a windshield 14 which is frosted so that ice 15 is on top of a surface of the windshield 14. Inside the vehicle 10 is a user 16 of the vehicle 10. Alter- natively or additionally to the ice 15 on the windshield 14, the windshield 14 can be fogged up by a layer of liquid water in an inside of the vehicle 10. Ve hicle interior 12 further comprises a cover element of a panel of the vehicle 10 that contacts the windshield 14. This cover element is further referred to as the surrounding vehicle interior element 17. The vehicle 10 comprises an air conditioning system 20 which comprises an air conditioning device 22, a ventilation opening device 30 and a connecting tube 24. The air conditioning device 22 is designed to provide conditioned air for the ventilation opening device 30. The ventilation opening device 30 is positioned in the vehicle interior 12 such that it is surrounded by the sur rounding vehicle interior element 17 and is connected with the air condition ing device 22 via the connecting tube 24. It is furthermore designed to eject conditioned air supplied by the connected air conditioning device 22. This ejected air is sketched in Fig. 1 with arrows 26. To control the air conditioning system 20, the user 16 can manually activate the air conditioning system 20 with a display equipment. The vehicle interior 12 also comprises a control device 18 designed for controlling the air conditioning system 20.

The ventilation opening device 30 is designed to be moved between an inac tive position unintended for conditioned air ejection and an active position intended for conditioned air ejection. In Fig. 2a the ventilation opening device 30 is sketched in the inactive position which is a retracted position with re spect to the surrounding vehicle interior element 17. In Fig. 2a there is no ice 15 sketched on the windshield 14, thus the ventilation opening device 30 which is intended to defog or defrost a window of a vehicle 12 is not in use.

The ventilation opening device 30 comprises an air inlet 31 that is connected with the air conditioning device 22 by the connecting tube 24 and a ventila tion opening 32 that is designed to eject conditioned air supplied by the con nected air conditioning device 22 if positioned in the active position intended for conditioned air ejection. The ventilation opening device 30 further com prises a moving mechanism 34 that is designed to be moved by the moving mechanism device 34 between the inactive position which is a retracted posi tion with respect to the surrounding vehicle interior element 17 and the active position which is an extended position with respect to the surrounding vehicle interior element 17. This means that the ventilation opening 32 can be moved upwards or downwards in z-direction if moved by the moving mechanism device 34. The ventilation opening device 30 comprises additionally a shutter element 36. The shutter element 36 is designed to separate the ventilation opening 32 from the vehicle interior 12 in the retracted position. As sketched in Fig. 2a the shutter element 36 is placed above the ventilation opening 32 in a way that a top side of the shutter element 36 is positioned in flush with the surface of the surrounding vehicle interior element 17.

In Fig. 2b, there is ice 15 on the windshield 14 so that the ventilation opening device 30 is activated. In Fig. 2b the ventilation opening device 30 is hence in the extended position which is the position for active air ejection as indicated by the arrows 26. In the extended position, the shutter element 36 is moved sideways in x-direction relative to the position of the ventilation opening 32 and the ventilation opening 32 is moved upwards in z-direction at least to the plane of the surface of the surrounding vehicle interior element 17. In the ex tended position the ventilation opening 32 is therefore visible for the user 16 and not covered by the shutter element 36.

To move the ventilation opening device 30 from the extended position to the rejected position, the moving mechanism device 34 lowers the ventilation opening 32 relative to the surface of the surrounding vehicle interior element 17 and covers a resultant opening in the surrounding vehicle interior element 17 with the shutter element 36. In the retracted position as shown in Fig. 2a, the ventilation opening 32 is hidden from view of the user 16.

Fig. 2c shows an alternative moving path of the ventilation opening device 30. Here, the lowered ventilation opening 32 is moved sideways relative to the resultant opening in the surrounding vehicle interior element 17 and the shutter element 36 is moved to the previous position of the lowered ventila tion opening 32. This means that the ventilation opening 32 is first moved downwards and afterwards laterally shifted by the moving mechanical device 34 in order to allow for the shutter element 36 to cover the resultant opening in the surrounding vehicle interior element 17. Fig. 2c shows the ventilation opening device 30 in the retracted position. In Fig. 3a and Fig. 3b, the ventilation opening device 30 is integrated into a door 11 of the vehicle 10. It is therefore intended to defog or defrost a side window 13 of the vehicle 10 if positioned in the extracted position. In Fig. 3a the retracted position is sketched. The ventilation opening 32 is therefore covered by the shutter element 36. In Fig. 3b the shutter element 36 is moved sideways so that the ventilation opening 32 is visible for the user 16 of the vehicle 10. In this position air ejection is possible as indicated with the arrows 26.

In Fig. 4a and Fig. 4b, this ventilation opening device 30 which can be posi tioned close to a side window 13 of the vehicle 10 is sketched from another angle as indicated by the coordinate system sketched in the figures. In Fig. 4a the ventilation opening device 30 is sketched in the retracted position in which the shutter element 36 is placed above the ventilation opening 32. In Fig. 4b the shutter element 36 is moved sideways by the moving mechanism device 34 and the ventilation opening 32 is moved upwards to the surface of the surrounding vehicle interior element 17. Now air ejection is possible as indicated with the arrows 26.

In Fig. 5a and Fig. 5b a ventilation opening device 30 is sketched which comprises a shutter element 36 in the shape of a housing. This housing has a lateral opening 38 on a side of the housing which is oriented towards the windshield 14 and in which the ventilation opening 32 is placed. The moving mechanism device 34 is designed to move the ventilation opening from the rejected position to the extended position by moving the housing upwards until at least a part of the ventilation opening 32 is positioned above the sur face of the surrounding vehicle interior element 17. The retracted position is shown in Fig. 5a in which a top side 37 of the shutter element 36 is posi tioned in flush with the surface of the surrounding vehicle interior element 17.

In Fig. 5b the ventilation opening device 30 is shown in the extended position in which the ventilation opening device 30 has already been moved upwards so that the opening 38 is positioned above the surface of the surrounding vehicle interior element 17. As indicated by arrows 26, air ejection towards the windshield 14 is now possible. However, the user 16 cannot directly see the ventilation opening 32 of the ventilation opening device 30 in the extend ed position. However as the ventilation opening device 30 is moved outwards relative to the surrounding vehicle interior element 17, the user 16 can see the closed sides of the shutter element 36 which are extended relative to the surrounding vehicle interior element 17.

Fig. 6 shows the vehicle 10 with another vehicle interior design. Here the sur rounding vehicle interior element 17 is a tub-shaped indentation 40 posi tioned at the route of the windshield 14. Parallel to the surrounding vehicle interior element 17, a display 19 is positioned which is transparent and can be used by the user 16 to manually activate defrost or defog mode of the air conditioning system 20. This activation can be performed by the user 16 by touch of the display 19 and/or by remote control with a controller and/or speech recognition. The shutter element 36 is formed as a housing of the ventilation opening device 30. The shutter element 36 has on the top side 37 of the housing the opening 38 which is oriented towards the windshield 14 and in which the ventilation opening 32 is placed. The moving mechanism device 34 is designed to move the ventilation opening 32 from the retracted position to the extended position by moving the shutter element 36 sideways until at least a part of the ventilation opening 32 is positioned above the sur face of the tub-shaped indentation 40. In Fig. 6, the retracted position is sketched with drawn lines whereas the extended position is sketched with dashed lines. In the extended position it is once again possible to eject air towards the wind shield 14 as indicated with the arrows 26.

Fig. 7 shows the same ventilation opening device 30 as in Fig. 6 but from another angle. Fig. 7 shows in detail the ventilation opening 32 which is here in the extended position so that air ejection is possible, as indicated with the arrows 26. The shutter element 36 comprises closed lateral sides as well as a closed bottom side so that only the top side 37 with the opening 38 is de signed for air ejection. An arrow 27 indicates the possible movement of the ventilation opening 32 to the retracted position. The position of the ventilation opening 32 in the retracted position is sketched with dashed lines in Fig. 7.

The connecting tube 24 is flexible and designed to maintain the connection between the air conditioning device 22 and the ventilation opening device 30 in the retracted and the extended position of the ventilation opening device 30 and during a movement in-between the retracted and the extended posi tion.

The control device 18 is designed for controlling the air conditioning system 20. Upon manual or automatic activation of defog and/or defrost mode of the air conditioning system 20, the control device 18 is designed to trigger the moving mechanism device 34 to move the ventilation opening 32 from the retracted position to the extended position and activate condition air ejection through the ventilation opening 32. The control device 18 can for example be operated upon operation of the display 19 which can be designed as a touchpad.

Overall, the examples show a window defroster which is shaped like a draw er. Future cars may have a vehicle interior 12 which looks more or less like the one sketched in Fig. 6. There is then a very short distance between the front window, which is indicated as the windshield 14, and the scoop-like space in front of the display 19, which is designed as a transparent display. The windshield 14 will still have to be defrosted in winter but there is little room to incorporate a classical defroster, meaning a classical ventilation opening 32, in the slim space between the windshield 14 and the start of the interior architecture. The tub-shaped indentation 40 will most likely be cov ered by wood and/or another material like for example metal or plastic and cannot be interrupted by the classical ventilation opening 32. This can be solved by having a ventilation opening 32 that is formed like a drawer. When it is not needed it is slid in and the roominess is not disturbed. When the ven tilation opening 32 is needed it slides out like a drawer and moves back in after having defrosted and/or defogged the window. Instead of simply having a ventilation opening 32 a ventilation opening device 30 as described above is positioned within the vehicle 10 so that both defrosting but also defogging of the windshield 14 is possible with the ventilation opening device 30. This leads to the advantages that on one hand the windshield 14 can be defrosted and/or defogged while keeping the room in airy interior. On the other hand, the wooden application meaning the tub-shaped indentation 40 is not dis turbed by dust catching airvents. The drawer offers additionally the possibility of showing staging and engineering excellence.