Air outlet device for a motor vehicle, interior trim for a motor vehicle and method for operating an air outlet device

Abstract

The invention relates to an air outlet device (10) for a motor vehicle with an air guide element (12) by which the intensity and / or direction of an airflow (14) passing through the air guide element (12) can be adjusted, wherein the air guide element (12) can be transformed from a basic state in which the air guide element (12) is closed to the airflow (14) by deformation into a guide state which adjusts the airflow (14), wherein the air guide element (12) is formed from a planar plate (16) in which at least one leaf element (20) is formed by at least one cut (18), on the side of which facing the airflow (14) in the direction of flow a metal element (22) with a low coefficient of thermal expansion compared to the leaf element (20) is firmly connected to it, and by which the leaf element (20) can be subjected to heat, whereby the leaf element (20)Furthermore, the invention relates to an interior lining (36) with at least one air outlet device (10) and a method for operating the latter.

Description

[0001] The invention relates to an air outlet device for a motor vehicle with an air guide element by which the intensity and / or direction of an airflow passing through the air guide element can be adjusted, according to claim 1. Furthermore, the invention relates to an interior trim panel for a motor vehicle with a trim element in which at least one air outlet device is arranged, according to claim 7. Finally, the invention relates to a method for operating an air outlet device according to claim 9.

[0002] Motor vehicles typically have a ventilation or air conditioning system that uses ducts to regulate the temperature of the vehicle's interior. These ducts distribute conditioned air throughout the vehicle. In modern vehicles, the airflow enters the interior through so-called "fresh air grills." These grills are openings in the interior trim, where horizontally and vertically arranged louvers essentially form a grid structure (or grille) that directs the airflow in various directions. The orientation of the louvers allows for three-dimensional airflow control. The combination of vertical and horizontal louvers and their respective orientations determine the direction of airflow. For example, if the horizontal louvers are oriented downwards, the airflow is directed downwards.If the vertical louvers are oriented to the left, the air flows to the left. If both the horizontal and vertical louvers are simultaneously positioned downwards and to the left, the air flows downwards and to the left. To direct the louvers in the desired direction, a user typically moves or shifts them manually. If the louvers are to be moved by an actuator, one actuator is provided for each of the vertical and horizontal louvers. A further actuator is required for airflow regulation.

[0003] Even in modern cockpits or dashboards, which often do without physical controls, the louvers usually have to be operated manually. Such operation is distracting, even if settings are transferred via the vehicle's key. However, settings cannot be transferred for manual controls.

[0004] DE 10 2022 000 946 A1 discloses an air outlet for a vehicle, comprising a ventilation duct element and an air guide element, which is pivotably mounted in the ventilation duct element in at least one direction about at least one pivot point, wherein a control device is provided by which at least one basic setting of the air guide element relative to the ventilation duct can be detected and, depending on at least one defined state, the air guide element can be moved into the basic position by means of at least one displacement element, by which the air guide element can be displaced about the at least one pivot point relative to the ventilation duct element.

[0005] If the louvers can be adjusted with actuators, the cost of the air outlet device is particularly high due to the number of actuators required. Furthermore, actuators require energy, have their own weight, and are prone to defects. Louvers are mechanical parts that require the movement of hinges, levers, knobs, dials, etc. Mechanical parts can wear out and fail, potentially leading to quality issues. Another problem with louvers is that the air outlet is always open, allowing dust to collect and accumulate in the opening. This can increase friction and / or cause a significant amount of dust to enter the vehicle interior during operation.

[0006] The object of the present invention is to provide an air outlet device for a motor vehicle, an interior trim for a motor vehicle and a method for operating an air outlet device, which enables particularly advantageous simple, in particular automated, operation, with at the same time particularly low wear of mechanical components and in addition costs and / or dust entry into the vehicle interior can be particularly low.

[0007] This problem is solved according to the invention by the subject matter of the independent claims. Advantageous embodiments and further developments of the invention are the subject matter of the dependent claims, the description, and the drawings.

[0008] A first aspect of the invention relates to an air outlet device for a motor vehicle, which is particularly designed as a passenger car and / or truck. The air outlet device according to the invention comprises an air guide element by which the intensity and / or direction of an airflow passing through the air guide element can be adjusted. In order to specify or adjust the intensity and / or direction of the airflow, the air guide element can be transformed from a basic state in which the air guide element is closed to the airflow, by deformation, into a conducting state that adjusts or specifies the airflow.

[0009] The airflow is generated or directed, for example, by means of a duct element from a blower to the air outlet device, through which air from the duct element can enter the vehicle interior. The motor vehicle is specifically designed as a passenger car and / or truck.

[0010] In order to be able to adjust the airflow, its intensity, quantity, and / or direction in a particularly advantageous manner, the invention provides that the air guide element is formed from a plate, which is planar in its basic state, in which at least one blade element is formed by at least one cut. In particular, several blade elements are formed, with each blade element being arranged for a specific direction. A metal element with a lower coefficient of thermal expansion than the blade element is rigidly connected to each blade element on its side facing the airflow direction. Furthermore, according to the invention, a heat source is associated with the at least one blade element, through which the blade element can be heated, causing the blade element to deform and thereby generating the desired guide state.

[0011] The plate of the air guide element is formed, in particular, from a metal. Advantageously, at least one blade element is provided for each direction, with, for example, one blade element being provided for each of the four basic directions: up, down, left, right. Advantageously, the corresponding intermediate directions, left down, right up, etc., are each realized by a separate blade element. Thus, the air guide element essentially forms a nozzle, with the air guide element, or the flat plate, being designed as a bimetal at least in partial areas of the respective blade element.

[0012] The various outflow directions are formed by individual, particularly radially arranged, blade elements or blades. The input of heat, or the heating of the respective blade element by the respective heat source, causes a deformation of the blade element, thus moving the nozzle, for example, the air guide element, from its ground state into one of several flow states. In this way, the air outlet device adjusts or determines the intensity and / or direction of the airflow.The desired geometry of the air guide element, which can be designed, for example, as part of a decorative strip, is achieved in particular by laser cutting, so that the at least one cut, which surrounds a large part of the leaf element on the outer circumference, can deform relative to the rest of the air guide element or the plate and is in particular only fixed or without a cut in the longitudinal direction with the rest of the plate.

[0013] In other words, a nozzle without moving parts, in the sense of a "compliant mechanism" and thus an all-solid-state nozzle, is shown. The bending of the bimetallic blades is not the result of mechanical actuation, but is virtually actuator-free and requires no hinges or similar components. The bending of the bimetallic blades is achieved by heating the respective blade(s).

[0014] One advantage is that very few components are required, which, for example, allows for particularly low manufacturing costs, since the air guide element is essentially made from the plate in which the cut structure is created using a laser cutter, and no lamellae or joints are necessary.

[0015] In an advantageous embodiment of the invention, the heat source comprises a resistive element on the respective leaf element or at least one leaf element and / or a laser that applies heat directly and / or indirectly to the leaf element. In other words, heating is achieved by providing resistance. Thus, heating can be achieved resistively, for example, with a resistive plate adhered to the leaf element and / or by means of resistive paste, as is the case, for example, with a rear window defroster. Additionally or alternatively, heating can be effected by means of a laser, whereby this is particularly likely to occur directly, with the laser directed at the leaf element, or indirectly, particularly via optical fiber, with the laser being guided from its source to the respective individual leaf or leaf element via at least one optical fiber.This offers the advantage that the heat source and, in particular, its positioning can be designed with great flexibility, and thus adapted, for example, to specific installation space availability.

[0016] In a further advantageous embodiment of the invention, the base area of ​​the leaf element is smaller than the base area of ​​the metal element. Additionally or alternatively, the metal element is dimensioned and / or arranged such that it projects beyond the leaf element at at least one edge formed by the at least one cut. In other words, it is advantageous if the nozzle or the respective leaf element can only open inwards, i.e., away from the vehicle interior, to prevent, for example, a user from getting caught. This prevents the respective leaf element from bending outwards because the metal element or metal plate on the back is substantially larger than the opening or cut, particularly the one made by a laser. This has the advantage of preventing the leaf element from accidentally opening outwards.

[0017] In a further advantageous embodiment, the plate and / or the blade element are made of copper and / or the metal element of nickel and / or steel. In other words, the bimetallic layers of the blade element are arranged such that, in the assembled state, copper is on the outside and nickel on the inside. The expansion of the copper is greater than that of the steel or nickel, causing the blades to bend inwards. In other words, copper, a material particularly attractive for interiors, is combined with more economical steel or nickel and arranged according to their respective coefficients of thermal expansion to regulate the airflow. The copper surface can be coated to prevent oxidation and / or fingerprints. This offers the advantage that the airflow direction can be advantageously shaped while simultaneously ensuring durability.

[0018] In an advantageous embodiment of the invention, an air deflector is arranged on a region of the air guide element adjacent to the blade element, corresponding to the airflow. The air deflector is fixed to the air guide element and is thus designed as a separate component and / or formed from the air guide element or its plate, for example by forming processes such as deep drawing or the like. Additionally or alternatively, the air deflector has ribbing, particularly for a specific direction and thus corresponding to a blade element of the at least one blade element. The air deflector is therefore particularly suitable for guiding the airflow, especially laminarly, through the opening formed by deformation of the bimetal or the blade element in the at least one conduction state.Furthermore, the air deflector can be deep-drawn from a metal with higher conductivity, such as copper. Copper offers the advantage of being particularly malleable and ductile, allowing for the advantageous creation of complex shapes, such as ribbing. Alternatively, the air deflector can be made of a separate component, such as plastic. This offers the advantage of precise airflow control.

[0019] In a further advantageous embodiment of the invention, a labyrinthine cutout is arranged on one side of the leaf element where it is connected to the rest of the plate or its deformable area. In other words, a labyrinthine or meandering recess is provided, which serves in particular to reduce the heating of the non-deformable area at the boundary and thus its transfer into the plate of the leaf element. This prevents heat from spreading, since the labyrinthine cutout allows only a narrow corridor for heat conduction. Furthermore, this has the advantage that adjacent leaf elements cannot undesirably heat each other. Another advantage is that, for example, this enables efficient operation of the air outlet device.

[0020] A second aspect of the invention relates to an interior trim panel for a motor vehicle, comprising a trim element, in particular a decorative strip, in which at least one air outlet device according to the first aspect of the invention is arranged, wherein an air guide element of the air outlet device is formed in or with the trim element (and in particular also integrally with it). In other words, the air guide element is a complete part of a decorative strip and / or is formed in it.

[0021] Advantageous embodiments and further developments, as well as advantages of the first aspect of the invention, are to be regarded as advantageous embodiments and further developments, as well as advantages of the second aspect of the invention, and vice versa.

[0022] In an advantageous embodiment of the invention, several air guide elements of multiple air outlet devices are formed in the trim element, and these air guide elements are arranged in this trim element as a matrix, and thus particularly in columns and / or rows. In other words, individual nozzles form "pixels" in a decorative trim strip, so that the trim strip simultaneously serves as a fan, thereby saving parts, complexity, costs, and / or process or cycle times. At the same time, this offers the advantage that the vehicle has fewer components and / or a particularly aesthetic design. Furthermore, all nozzles can be adjusted in one direction or selectively, for example, the left half to the left, the right half to the right, or the like. Thus, a particularly individualized adjustment is possible due to the arrangement of the air guide elements. In addition, a pulsating effect, such as a wave, can be generated.This makes the interior lining particularly advantageous for the user.

[0023] A third aspect of the invention relates to a method for operating an air outlet device for a motor vehicle with an air guide element, by which an intensity and / or a direction of an airflow passing through the air guide element is adjusted, for which purpose the air guide element is transformed from a basic state in which the air guide element is closed to the airflow by deformation or deformation into a conducting state which adjusts the airflow.

[0024] In order to adjust the airflow particularly advantageously, the air guide element is formed from a planar plate which has an outer and an inner area which are connected to each other by a cut and deformable structure and at least one switchable magnetic device which is arranged at a distance from an inner side of the air guide element is switched, so that the inner area is attracted by its magnetic field, whereby the conduction state is created by deformation of the structure.

[0025] Advantageous embodiments and further developments, as well as advantages of the first and second aspects of the invention, are to be regarded as advantageous embodiments and further developments, as well as advantages of the third aspect of the invention, and vice versa.

[0026] In an advantageous embodiment of the invention, the intensity and / or direction of the airflow are predetermined via a control element, in particular a touch-sensitive screen or touchscreen, by means of voice control and / or by a setting stored in a key. In other words, the air guide element or air outlet device can be controlled via a touchscreen using voice commands, for example, via a microphone and suitable speech recognition. Additionally or alternatively, a car key for a specific user, or their preferred settings, can be stored in a customized model. These settings can also include the air outlet device, so that the desired settings can be applied when the vehicle is started. This offers the advantage that the method can be initiated particularly advantageously by a user.

[0027] A fourth aspect of the invention relates to a motor vehicle which comprises an air outlet device according to the first aspect of the invention and / or an interior lining according to the second aspect of the invention and / or which is further configured to carry out a method according to the third aspect of the invention.

[0028] Advantageous embodiments and further developments, as well as advantages of the first, second and third aspects, are to be regarded as advantageous embodiments and further developments, as well as advantages of the fourth aspect of the invention, and vice versa.

[0029] Further features of the invention will become apparent from the claims, the figures, and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown in the figures alone, are not only usable in the combinations specified, but also in other combinations or on their own.

[0030] The invention will now be explained in more detail with reference to a preferred embodiment and the drawings. The drawings show: Fig. 1 A schematic front view of an air outlet device in the direction of view against an air pressure flow, with an air guide element; Fig. 2 a schematic cutaway side view of the air outlet device according to Fig. 1; Fig. 3 a schematic perspective view of the air outlet device according to Fig. 1 and Fig. 2; Fig. 4 a schematic perspective view of another embodiment of the air outlet device; Fig. 5 a schematic cutaway side view of the embodiment according to Fig. 4; Fig. 6 a schematic perspective view of another embodiment of the air guide element of the air outlet device; Fig. 7 a schematic sectional view of another embodiment of the air guide element; Fig. 8 a schematic view of an interior lining comprising several air outlet devices in the direction of the airflow; and Fig. 9 a schematic rear view of the interior trim according to Fig. 8.

[0031] Fig. Figure 1 shows a schematic front view of an air outlet device 10 for a motor vehicle with an air guide element 12, through which the intensity and / or direction of a Fig. 2 the airflow 14 shown, which passes through the air guide element 12, is adjustable, for which purpose the air guide element 12 can be converted or reversibly moved from a basic state, in which the air guide element 12 is closed to the airflow 14, by deformation or in particular deformation into a guide state, by which the airflow is adjusted or which adjusts the airflow.

[0032] The air guide element 12 is formed from a plate 16, which is planar in its basic state and is formed by at least one section 18, or in particular by each section 18, at least one leaf element 20, in the side of which facing the airflow 14 in the direction of flow a metal element 22, as for example shown in the section of the Fig. 2, which has a lower coefficient of thermal expansion than the leaf element 20, is firmly connected to it, wherein at least one leaf element 20 is assigned a heat source 24. The respective heat source 24 can supply heat to the respective leaf element 20, causing the leaf element 20 to deform due to the heat or an increase in temperature, thereby generating the conduction state by which the airflow 14 through the air guide element 12 can be determined in intensity and / or direction.

[0033] In addition to the air outlet device 10, a method is presented here in which the corresponding conduction state is set by appropriate heat input or switching of the respective heat source 24.

[0034] In the embodiments shown in the figures, each air guide element 12 has eight leaf elements 20 or leaflets, which define the four main directions for the airflow 14 above, below, left, right and the four intermediate directions below left, below right, above right and above left.

[0035] By controlling the respective heat source 24 via a control unit, the degree of deformation of the respective leaf element 20 can be controlled based on the applied heat. Furthermore, intermediate directions and thus arbitrary directions can be set, for example by applying heat to two adjacent leaf elements 20 and thereby opening them.

[0036] Fig. Figure 2 shows a schematic sectional view of a first embodiment of the air outlet device 10, in which the respective heat source 24 is shown with a respective supply line 26. The respective heat source can be formed by a resistive element, for example a resistive plate and / or a resistive plate, on the respective leaf element 20 and / or by a laser, which applies the heat directly and / or indirectly, for example by means of an optical fiber, to the respective leaf element 20. Thus, the supply line 26 can, for example, be an optical fiber through which the light can be coupled to, for example, a corresponding pad as the heat source 24 on the respective leaf element 20. Additionally or alternatively, in the case of a resistive element, the supply line 26 can, for example, be formed by an electrical conductor.

[0037] Fig. Figure 2 further shows that, in order to advantageously guide the airflow 14 through the opening formed by the respective leaf element 20, an air deflector 30 is arranged in a region 28 of the air guide element 12 adjacent to the respective leaf element 20. This can be configured as shown in Fig. 2 shown, for example, as an additional component on the plate 16 and is designed, for example, as a solid plastic material. Alternatively, the air deflector 30 can be, as in the embodiment of the Fig. 4 and Fig. 5 or the embodiment of the Fig. As shown in section 6, it can be formed, for example, by deep drawing directly from the plate 16. Advantageously, a ribbing 32 can be provided through which the respective airflow 14 can be guided particularly advantageously.

[0038] Advantageously, the plate 16 and / or the leaf element 20 is made of copper and / or the metal element 22 is made of nickel or steel. It is further advantageous if the base area of ​​the leaf element 20 is smaller than the base area of ​​the metal element 22 and / or the metal element 22 is dimensioned and / or arranged such that it projects beyond the leaf element 20 at at least one edge relative to the section 18.

[0039] In other words, the leaf element 20 is made of bimetal, with the metal having a higher coefficient of thermal expansion facing the vehicle interior. At temperatures above the design temperature, the leaf or leaf element 20 begins to open. The metal with a lower coefficient of thermal expansion, for example, steel or nickel, is located on the back side, particularly on a trim strip. At temperatures above the design temperature, this leaf also begins to open. Bending outwards or into the interior is prevented, in particular, by the fact that the metal plate or metal element 22 with the lower coefficient of thermal expansion on the back side of the trim strip is larger than the opening formed by the cut 18. Furthermore, the nozzle remains closed at temperatures below the design temperature.

[0040] The ribs 32, especially on the sides, allow the air or airflow 14 to be guided more effectively in the desired direction, and furthermore, there can be less turbulence from neighboring directions, so that the air can be directed more effectively.

[0041] The respective heating element or heat source 24 is supplied with energy externally via the supply line 26 and can be, for example, a resistive paste, a resistor, or an element that terminates at the glass fiber. The paste, resistor, and / or glass fiber can heat the individual leaves individually and with the desired intensity. Due to the heating, the leaves can bend because of the different coefficients of thermal expansion, in particular those of the two metallic materials used for the plate 16 or leaf element 20 and the metal element 22. Fig. 3 and Fig. Figure 4 shows two embodiments in a schematic perspective view, which differ in particular in the design of the air deflector. The embodiment in the Fig. 3 of the air deflector 30, an attached plastic version according to the Fig. 1 and Fig. 2. In contrast, the air deflector 30 is in the Fig. 4, Fig. 5 and Fig. 6 deep-drawn. This shows Fig. 5 analogous to the Fig. 2 a schematic cutaway side view with a corresponding identical or identically adjusted line state and thus identical airflow 14.

[0042] Fig. Figure 6 shows a schematic perspective view of a further embodiment of the air guide element 12 or the plate 16, wherein a labyrinthine cutout 34 is formed on the side of each respective blade element 20, connected to the rest of the plate 16. The labyrinthine cutout 34 is thus labyrinthine or meandering and serves to reduce heat transfer, in particular from the respective heat source 24, to the part of the plate 16 that does not form the respective blade element 20, thereby ensuring a particularly high efficiency of the heat source 24 and / or preventing deformation of adjacent blade elements 20.

[0043] Fig. Figure 7 shows a further embodiment of the air guide element 12 or the plate 16, wherein the shape of the cuts 18, which can be made in the air guide element 12, for example, by means of a laser cutter, can essentially represent the shape of the Union Jack. This is intended to illustrate that considerable design freedom is possible for the air guide element 12; for example, shaping it into a Union Jack, and thus as a flag, may be of interest for some vehicle models.

[0044] The Fig. 8 and Fig. Figure 9 shows an interior lining 36, which connects or forms several air guide elements 12 of several air outlet devices 10 in a strip element 38, wherein the air guide elements 12 are arranged as a matrix in the strip element 38, and thus in particular as rows and / or columns. Fig. 8 the interior trim 36 from the view of the vehicle interior and the Fig. 9, essentially the rear side hidden from the vehicle interior in the operating position.

[0045] The nozzle formed by the respective air outlet device 10 is, by default, closed, for example, in a design for a vehicle interior temperature of 20°C, and can be integrated into the trim strip or the strip element 38. This offers two advantages: firstly, it allows for improved aesthetics, and secondly, it facilitates ventilation for an air conditioning system whose duct element terminates in the vehicle interior with the air outlet device 10. The vehicle interior can thus be designed to be particularly discreet or minimal, as the nozzles are, for example, very flat and, in their closed or basic state, not recognizable as such, especially if the respective cut 18 is finely designed. In this way, the air outlet devices 10 can virtually disappear into the vehicle interior.

[0046] From a strip or strip element 38, which in particular has several air guide elements 12 arranged in a matrix, the driver, the front passenger, and also persons in the rear area can be supplied with the respective airflow 14. The strip or strip element 38 can thus individually control groups of "pixels" or the nozzles as desired. The nozzles can all be adjusted in one direction or in sections, for example, the left half to the left, the right half to the right, or the like. Thus, a particularly individual setting is possible due to the arrangement of the air guide elements 12. Furthermore, a pulsating effect, such as a wave, can be generated. In this way, the interior trim 36 is particularly advantageous for the user.

[0047] The air, or rather the respective airflow 14, can flow out of the respective nozzle or air outlet device 10. The deformation of the nozzle, or rather of at least one of its blade elements 20, thus opens an air gap. In the illustrated embodiment, the orientation of the respective nozzle covers the eight principal directions and therefore discrete values. The opening of the nozzle is continuously adjustable between the basic state and a maximum open state or flow state for any direction.

[0048] Because the trim element 38 serves simultaneously as a fan and decorative strip, component complexity, costs, and / or process effort, such as cycle times, can be reduced. This allows the corresponding vehicle to be designed with a particularly elegant and / or aesthetic appeal.

[0049] The method for controlling the air outlet device 10 can, for example, include voice control, allowing the driver to keep their eyes on the road and thus enabling particularly convenient and safe operation. Climate control for children in the rear passenger area or on the back seat can therefore be operated by the driver while driving. Furthermore, convenient control of the air outlet device 10 is possible via a touch-sensitive screen or touchscreen. For example, arrows and / or intensity can be dragged to the desired position using a graphic. In addition, the settings can be saved in a vehicle key, so that a corresponding preset can be configured for each user who unlocks the vehicle with their key.This allows for the provision of a solid-state compliant air nozzle and trim strip with an integrated air nozzle matrix. Reference symbol list 10 Air outlet device 12 strip elements 14 Airflow 16 plate 18 cut 20 leaf elements 22 Metal element 24 Heat source 26 Supply line 28 area 30 air deflector 32 ribbing 34 labyrinthine cutout 36 Interior trim 38 strip element QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2022 000 946 A1

[0004]

Claims

[1] Air outlet device (10) for a motor vehicle with an air guide element (12) by which the intensity and / or direction of an airflow (14) passing through the air guide element (12) can be adjusted, wherein the air guide element (12) can be transformed from a basic state in which the air guide element (12) is closed to the airflow (14) by deformation into a guide state which adjusts the airflow (14), wherein the air guide element (12) is formed from a planar plate (16) in which at least one leaf element (20) is formed by at least one cut (18), on the side of which facing the airflow (14) in the direction of flow a metal element (22) with a low coefficient of thermal expansion compared to the leaf element (20) is firmly connected to it, and a heat source (24) is assigned to the at least one leaf element (20) by which the leaf element (20) can be heated,which causes the leaf element (20) to deform and thereby makes the conduction state possible. [2] Air outlet device (10) according to claim 1, characterized by , that the heat source (24) has a resistive element on the leaf element (20) and / or a laser which applies the heat directly and / or indirectly to the leaf element (20). [3] Air outlet device (10) according to claim 1 or 2, characterized by , that the base area of ​​the leaf element (20) is smaller than the base area of ​​the metal element (22) and / or the metal element (22) is dimensioned and / or arranged such that it extends beyond the leaf element (20) at at least one edge. [4] Air outlet device (10) according to one of the preceding claims, characterized by , that the plate (16) and / or the sheet element (20) is made of copper and / or the metal element (22) is made of nickel and / or steel. [5] Air outlet device (10) according to any one of the preceding claims, characterized by , that an air deflector (30) is arranged on an area (28) of the air guide element (12) corresponding to the airflow (14) and adjacent to the leaf element (20), which is fixed to the air guide element (12) and / or is formed from the and / or has a ribbing (32). [6] Air outlet device (10) according to one of the preceding claims, characterized by , that a labyrinthine cutout (34) is formed on one side of the leaf element (20) where it is connected to the rest of the plate (16). [7] Interior trim (36) for a motor vehicle, comprising a strip element (38) in which at least one air outlet device (10) according to one of the preceding claims is arranged, wherein an air guide element (12) of the air outlet device (10) is formed with the strip element (38). [8] Interior lining (36) according to claim 7, characterized by that several air guide elements (12) of several air outlet devices (10) are formed in the strip element (38) and the air guide elements (12) are arranged as a matrix. [9] Method for operating an air outlet device (10) for a motor vehicle with an air guide element (12) by which the intensity and / or direction of an airflow (14) passing through the air guide element (12) is adjusted, wherein the air guide element (12) is transformed from a basic state in which the air guide element (12) is closed to the airflow (14) by deformation into a guide state which adjusts the airflow (14), wherein the air guide element (12) is formed from a planar plate (16) in which at least one leaf element (20) is formed by at least one cut (18), on the side of which facing the airflow (14) in the direction of flow a metal element (22) with a low coefficient of thermal expansion compared to the leaf element (20) is firmly connected, and a heat source (24) is assigned to the at least one leaf element (20) by which the leaf element (20) is heated is charged,which causes the leaf element (20) to deform and thereby creates the conduction state. [10] Method according to claim 9, characterized by , that the intensity and / or direction of the airflow is specified via a control element, in particular a touch-sensitive screen (touchscreens), by means of voice control and / or by settings stored in a key.

Images