Air outlets for a ventilation system of a motor vehicle and methods

Abstract

The invention relates to an air outlet (1) for a ventilation system of a motor vehicle, comprising an outlet element (2) which has an outlet opening (3) through which air can flow into an interior space (4) of the motor vehicle, and a flow section (5) arranged upstream of the outlet opening (3), and a receiving element (8) formed separately from the outlet element (2), which has a receiving opening (9) in which the outlet element (2) is received at least partially, wherein an outflow direction (10) of the air to be introduced into the interior space (4) via the outlet opening (3) runs parallel to a central axis (12) of the flow section (5) extending in the axial direction (11) of the flow section (5), and the outlet element (2) and the receiving element (8) are rotatably mounted relative to each other about a pivot axis (13), wherein the air outlet (1) has a drive device (15).by means of which a rotation of the outlet element (2) and the receiving element (9) about the axis of rotation (13) relative to each other can be effected.

Description

The invention relates to an air outlet for a ventilation device of a motor vehicle according to the preamble of claim 1. Furthermore, the invention relates to a method for operating an air outlet for a ventilation device of a motor vehicle according to the preamble of claim 10. EP 2 340 178 B1 discloses an air nozzle for directing an airflow from an air supply duct or air supply line in a heating, ventilation or air conditioning system, in particular for passenger compartments in motor vehicles, consisting of a hollow cylindrical housing with a front air outlet opening and a rear air inlet opening, and an insert mounted in the housing, which has an outer surface that is at least partially spherical and is supported by contour-adapted bearing points, and with which the direction and / or intensity of the airflow exiting the air nozzle can be changed. The object of the invention is to provide an air outlet for a ventilation device of a motor vehicle and a method for operating an air outlet for a ventilation device of a motor vehicle, so that air can be introduced into the interior of the motor vehicle via the air outlet in a particularly cost-effective manner as required. This problem is solved according to the invention by an air outlet for a ventilation system of a motor vehicle with the features of claim 1 and by a method for operating an air outlet for a ventilation system of a motor vehicle with the features of claim 10. Advantageous embodiments of the invention are the subject of the dependent claims and the description. The problem concerns an air outlet for a ventilation system for a motor vehicle. The motor vehicle is, for example, a car, in particular a passenger car or a commercial vehicle. Preferably, the motor vehicle, in its fully manufactured state, has the ventilation system, in particular the air outlet. Preferably, the ventilation system, in particular in its fully manufactured state, has the air outlet. The air outlet has at least one outlet element, preferably designed as an air nozzle, through which air can flow or is flowing. The air nozzle can also simply be referred to as a nozzle. The outlet element has at least one outlet opening through which air can flow or is flowing, and through which the air, particularly conditioned air, can be discharged from the outlet element, especially from the air outlet, and can be introduced, particularly at least indirectly or directly, into an interior of the motor vehicle. In other words, the outlet element is fluidically connected to the interior via the outlet opening. The outlet element has at least one flow section, arranged upstream of the outlet opening, particularly in the direction of airflow through the outlet element, through which air can flow or is flowing.In other words, the air flowing through the flow section can be discharged from the flow section via the outlet opening and, in particular, can be introduced into the interior, at least indirectly or directly. Specifically, the flow section opens into the interior via the outlet opening, at least indirectly or directly. The flow section can be understood to be, in particular, a partial area of ​​the outlet element through which air can flow or is flowing, especially a duct area. The interior, which can be referred to as the vehicle interior, can be understood to be, in particular, a passenger compartment or passenger cell. The air outlet can be understood to be, in particular, an air outlet intended for the interior. The ventilation system is designed, for example, as an air conditioning system, which can also simply be referred to as an air conditioner. Specifically, the air conditioning system is designed to condition the air for the interior, for example, to heat and / or cool the air. Thus, tempered or conditioned, especially heated and / or cooled, air can be introduced into the interior via the outlet opening. Furthermore, the air outlet has at least one receiving element, separate from the outlet element, which has at least one receiving opening. The outlet element is received at least partially within the receiving opening. This means that at least a portion, in particular a length portion, of the outlet element is received or arranged within the receiving opening. In other words, the outlet element, in particular the outlet opening and / or the flow section, is at least partially arranged within the receiving opening, i.e., inside the receiving element. The outflow direction of the air to be introduced or introduced into the interior space via the outlet opening, that is, the outflow direction of the air discharged from the outlet element, in particular from the air outlet, and introduced or to be introduced into the interior space via the outlet opening, runs parallel to a central axis of the flow section extending in the axial direction of the flow section. This means that the flow section is open to or is open to airflow in the outflow direction.The outflow direction can be understood, in particular, as the inflow direction of the air to be introduced or introduced into the interior space via the outlet opening, since the air exits the outlet element, especially the air outlet, and is introduced into the interior space via the outlet opening in the outflow direction, i.e., in one and the same flow direction. Accordingly, it is intended, for example, that the interior space can be, or is, at least partially, permeated by the air introduced into the interior space in the outflow direction. Furthermore, the outlet element and the receiving element are mounted so that they can rotate relative to each other about an axis of rotation. In other words, the outlet element and the receiving element can rotate relative to each other about the axis of rotation. This means that the receiving element can rotate or is rotated around the axis of rotation relative to the outlet element, and / or that the outlet element can rotate or is rotated around the axis of rotation relative to the receiving element. In order to introduce air into the passenger compartment of the motor vehicle via the air outlet in a particularly efficient manner, the invention provides that the air outlet has at least one drive unit, which is, for example, designed as a piezoelectric drive unit. The drive unit enables the outlet element and the receiving element to rotate relative to each other about the axis of rotation. This means that the drive unit can or does drive the outlet element and / or the receiving element to cause the outlet element and the receiving element to rotate relative to each other about the axis of rotation. In other words, the drive unit enables the outlet element and the receiving element to be rotatable relative to each other about the axis of rotation.The axis of rotation runs in the axial direction of the receiving element. This means that the axis of rotation and the axial direction of the receiving element are parallel to each other, i.e., they extend parallel to each other. The outlet opening and the receiving opening are arranged eccentrically to each other. This means that the outlet opening and the receiving opening extend parallel to each other, with a center point of the outlet opening and / or a center point of the receiving opening being spaced apart from each other in the radial direction of the outlet opening and / or the receiving opening. Alternatively or additionally, in particular, a central axis of the outlet opening and a central axis of the receiving opening are spaced apart from each other in the radial direction of the outlet opening and / or in the radial direction of the receiving opening. The central axis of the outlet opening extends in particular in the axial direction of the outlet opening.The central axis of the receiving opening extends, in particular, in the axial direction of the receiving opening. Therefore, the outlet opening and the receiving opening are not arranged coaxially or concentrically to each other. Rotating the outlet element and the receiving element about the axis of rotation relative to each other results in a change in the orientation of the central axis of the flow section relative to the axis of rotation and / or relative to the axial direction of the receiving element in order to adjust the outflow direction. This means that rotating the outlet element and the receiving element about the axis of rotation relative to each other results in a change in the orientation of the central axis of the flow section relative to the axis of rotation and / or the axial direction of the receiving element in order to adjust, i.e., to change, the outflow direction of the air to be introduced or introduced into the interior space, particularly in a targeted manner.In other words, in a first rotational position that the outlet element and the receiving element assume relative to each other, the central axis of the flow section runs in a first direction, and in a second rotational position that differs from the first rotational position, the central axis of the flow section runs in a second direction that differs from the first direction. The first and second directions may run obliquely or perpendicularly to each other. In particular, in the first rotation position, the outflow direction runs parallel to the first direction, and in the second rotation position, the outflow direction runs parallel to the second direction. The invention is based in particular on the following findings and considerations: For example, air ducts are needed to air-condition the interior of a motor vehicle in order to distribute the conditioned air into the interior, i.e., specifically within the vehicle. The conditioned air flows into the interior, for example, via so-called "fresh air grills." As the name suggests, the corresponding openings resemble a grill or grill geometry. This allows the air to be directed or redirected, i.e., guided, in different directions. The grill geometry creates, for example, a grid structure that can direct the outflowing medium in the form of air. The grid structure conventionally features horizontally and vertically arranged louvers. By orienting such conventional louvers, the air can be directed multidimensionally, particularly three-dimensionally.A combination of the directions of the vertical and horizontal louvers determines the airflow direction. For example, if the horizontal louvers are oriented downwards, the air is directed downwards. If the vertical louvers are oriented laterally to the side of the vehicle, for example to the left, the air flows laterally, specifically to the left. If the louvers are both downwards and oriented laterally to the left, the air flows downwards and to the left. To direct the louvers in a desired direction, a control element is conventionally required to move them. Such a control element must typically be manually operated in the desired direction.In principle, it's conceivable that instead of manual operation, the louvers could be adjusted automatically, for example, via a touchscreen. This means that the orientation of the louvers could be automated. For this, actuators, such as electric motors, are required to adjust the conventional louvers. Because the airflow into the interior is conventionally determined by a combination of vertically and horizontally oriented louvers, several, and in particular two, such actuators are needed per opening. An additional actuator is also required for airflow regulation. Alternatively, a person could manually operate the actuators, for example, with their hand.Even in a modern cockpit, which, for example, has no buttons, the control element must be operated manually. Such manual operation can distract the driver. Even if driver settings, especially automatic ones, can be transferred via the vehicle's key, conventional manual controls and their settings cannot be transferred. If, in the prior art, the louvers can be adjusted using actuators, then, for example, a large number of these actuators can be problematic, as this can be particularly expensive. Furthermore, the actuators require a lot of energy and are, for example, particularly heavy and / or prone to defects. Conventional louvers are primarily mechanical parts that must be moved via hinges, levers, knobs, dials, or similar mechanisms.In principle, all mechanical components can wear out and fail, for example due to friction. This means that quality problems can occur. Even in a particularly modern cockpit, where many things can be set via voice control, such as raising and / or lowering a window to a desired position, the direction of the airflow into the interior cannot be controlled by voice. This means that if, for example, a small child, especially a baby, is sitting in the back seat, the driver has to stop to change the airflow direction in the rear. It also means that if the vehicle is traveling on a highway, the driver has to wait for the next exit.This means that even if many vehicle functions can be automatically adjusted, particularly via touchscreen, the operation of the air vents in the rear passenger area must always be manual. Furthermore, it can be problematic that the outlets of conventional air vents are always open, allowing dirt, especially dust, to accumulate. This can clog the nozzles and make them particularly difficult to clean. Conventional nozzles also incur significant effort and costs, especially during development, as they must be integrated seamlessly with the vehicle's trim.Such parts are developed separately, which means that tolerances and / or gap dimensions may have to be particularly tight, as deviations could be noticed very quickly by the human eye. In contrast, the aforementioned disadvantages can be avoided by means of the air outlet according to the invention. With the air outlet according to the invention, a particularly large number, and especially all, conceivable outflow directions can be set or specified, particularly automatically. This allows the air to be introduced into the interior space as needed. Furthermore, for example, only a single actuator, particularly in the form of the drive unit, is required to adjust the inflow directions. This allows the manufacturing costs of the air outlet to be kept particularly low. Furthermore, the air outlet eliminates the need for conventional mechanical joints, which could potentially fail.This allows the air outlet to be designed to be particularly robust, thereby significantly increasing its service life. The air outlet according to the invention functions, for example, similarly to a nozzle of a fighter jet engine, which can direct outgoing gases in a 360° direction ("thrust vectoring nozzle"). In contrast to the fighter jet engine, which would be too expensive and / or complex for a ventilation nozzle in automotive applications, and especially too delicate when dimensioned for automotive use, the air outlet, for example, does not have mechanically bonded lamellae, but rather the outlet element is formed from a flexible part ("compliant mechanism"). Therefore, the air outlet enables the use of a compliant jet vectoring air nozzle, particularly a one-piece nozzle. To enable the air to be introduced into the interior via the outlet opening in a particularly efficient manner, a further embodiment provides that, when the outlet element and the receiving element are rotated about the axis of rotation relative to each other, at least one precession movement of the outlet element, in particular the flow section, and of the receiving element, in particular of a precession movement extending in the axial direction of the central axis of the receiving element, occurs relative to each other. In other words, when the outlet element and the receiving element are rotated about the axis of rotation relative to each other, a movement of, in particular, an imaginary intersection point of the central axis of the flow section and the outlet opening occurs along, in particular, an imaginary circular path, which preferably extends completely around the central axis of the receiving element. The circular path is, for example, circular in shape.Precession can be understood, in particular, as a movement in which the central axis of the flow section completes a revolution on the surface of a cone, especially one with a fixed cone axis. Precession allows the desired outflow direction to be set in a particularly efficient manner, making it possible to achieve all conceivable outflow directions, particularly without the need for conventional vanes. In a further embodiment, it is provided that the drive device, particularly with regard to the outlet element and the receiving element, is used exclusively to drive or to rotate the outlet element and the receiving element about the axis of rotation relative to each other. This means that the drive device can drive or to rotate the outlet element, thereby causing the outlet element to rotate or to rotate about the axis of rotation relative to the receiving element. By rotating the outlet element relative to the receiving element, the direction of flow can be adjusted or set, particularly in a targeted manner. In a further embodiment, it is provided that during rotation, particularly by means of the drive mechanism, of the outlet element and the receiving element relative to each other, deformation of the outlet element is prevented. In other words, the outlet element is rigidly designed, allowing the outlet element and the receiving element to be rotatable around the axis of rotation, particularly without deformation of the outlet element relative to each other. The outlet element can thus have a defined shape which, when the outlet element is rotated relative to the receiving element, enables the adjustment of the flow direction. In particular, the receiving element remains stationary during the rotation of the outlet element. Alternatively, in a further embodiment, it is provided, for example, that when the outlet element and the receiving element are rotated relative to each other about the axis of rotation, a deformation, in particular an elastic one, of the outlet element, occurs. In other words, the outlet element, in particular the flow section, is designed to be deformed, in particular in a controlled manner, when the outlet element and the receiving element are rotated relative to each other about the axis of rotation. This makes it possible to change the orientation of the central axis of the flow section relative to the axial direction of the receiving element in order to adjust the outflow direction, thereby making it possible to adjust or change, in particular to set, the outflow direction.In other words, deforming the outlet element changes the orientation of the central axis of the flow section relative to the axial direction of the receiving element, which in turn alters or adjusts the outflow direction. This allows, for example, the outflow direction to be changed from the first to the second direction. The outlet element is therefore designed to be particularly flexible. This means that the outflow direction can be precisely set or predetermined by flexibly deforming the outlet element. This allows the outflow direction to be adjusted in a particularly efficient and precise manner, especially without the need for conventional vanes. Furthermore, only a single drive mechanism is required to adjust the flow direction. In a further embodiment, the air outlet has at least one coupling element via which the receiving element and the outlet element can be coupled to each other, in particular mechanically and / or magnetically. In other words, the receiving element and the outlet element can be connected to each other via the coupling element in a force-transmitting and / or torque-transmitting manner. Furthermore, it is provided that the receiving element can be driven, in particular at least indirectly or directly, by means of the drive device in order to rotate the receiving element about the axis of rotation relative to the outlet element. This means that the rotation of the receiving element about the axis of rotation relative to the outlet element can be effected or is effected by means of the drive device. The coupling element is connected, in particular at least indirectly or directly, to the receiving element. In other words, the coupling element is attached to the receiving element.This design ensures that the coupling element can move or is moved along with the receiving element when the receiving element rotates around its axis of rotation relative to the outlet element. In other words, when the receiving element rotates around its axis of rotation relative to the outlet element, the coupling element rotates simultaneously around its axis of rotation relative to the outlet element. This means that when the outlet element and the receiving element rotate relative to each other around their axis of rotation, the coupling element can deform the outlet element. Therefore, when the outlet element and the receiving element rotate relative to each other around their axis of rotation, the coupling element causes the outlet element to deform.In other words, rotating the intake element and the outlet element around their respective axes of rotation results in a mechanical and / or magnetic force being applied to the outlet element by the coupling element. This causes the outlet element to deform, which in turn alters the orientation of the central axis of the flow section relative to the axial direction of the intake element, thus adjusting the outflow direction. This allows for particularly precise and efficient adjustment of the flow direction, enabling the air to be introduced into the interior space as needed. In a further embodiment, the coupling element is designed as a mechanical coupling element. In other words, the receiving element and the outlet element can be mechanically coupled to each other via the coupling element. Alternatively, the coupling element can be designed, for example, as a magnetic coupling element. In other words, the receiving element and the outlet element can be magnetically coupled to each other via the coupling element. Accordingly, the coupling element is designed, for example, as a magnet, in particular a permanent magnet. The mechanical or magnetic coupling element allows the receiving element and the outlet element to be coupled to each other in a particularly cost-effective and, in particular, highly reliable manner, thereby enabling the flow direction to be adjusted with particularly low effort and, in particular, highly reliable reliability. In a further embodiment, it is provided that the outlet element, in particular at least partially, predominantly, or completely, is formed from a film. This means that the outlet element is designed as a film. In other words, the outlet element is formed, at least partially, from at least one film material. The film is, for example, a metal film. This allows the outlet element to be deformed particularly reliably and, in particular, with minimal effort. In a further embodiment, the outlet element comprises a base body and several louvers projecting from the base body in a direction towards the interior, for example, obliquely or perpendicularly. In other words, the louvers connect to the base body at least indirectly, and in particular directly, in the direction towards the interior. The fact that the louvers project from the base body in the direction towards the interior can be understood, in particular, to mean that, viewed from the base body, the louvers extend in a direction which, especially with respect to the base body, points towards the interior. The louvers form the outlet opening at least partially, and in particular at least predominantly or completely.In other words, the lamellae limit the outlet opening at least partially in the radial direction of the outlet opening, in particular at least predominantly or completely, that is, for example, completely in the circumferential direction of the outlet opening. Furthermore, the lamellae limit the flow section in the radial direction of the flow section outwards at least partially, in particular predominantly or completely. In other words, the lamellae form the flow section at least partially, in particular at least predominantly or completely. The deformation of the outlet element includes at least a pivoting of at least one of the lamellae, in particular several of the lamellae, relative to the base body, in particular about a pivot axis. This means that the deformation of the outlet element is accompanied by at least the pivoting of at least one of the lamellae relative to the base body.In other words, at least one of the lamellae, particularly when acted upon by the coupling element, can be pivoted relative to the base body, for example, about the pivot axis, thereby enabling or causing the deformation of the outlet element. The pivot axis extends, for example, in the circumferential direction of the outlet element, particularly the flow section. The lamellae allow the outlet element to be deformed with minimal effort and, in particular, with exceptional precision, thus enabling the flow direction to be adjusted or changed with minimal effort and, in particular, with exceptional precision. A second aspect of the invention relates to a method for operating an air outlet for a ventilation system for a motor vehicle or the motor vehicle itself. The air outlet is, in particular, an air outlet according to the first aspect of the invention. Advantages and advantageous embodiments of the first aspect of the invention are to be regarded as advantages and advantageous embodiments of the second aspect of the invention, and vice versa. The air outlet has a discharge element with an outlet opening through which air flows. Air is discharged from the discharge element and introduced into the interior of the vehicle. The discharge element has a flow section arranged upstream of the outlet opening, through which the air flows. Furthermore, the air outlet has a receiving element, separate from the discharge element, which has a receiving opening in which the discharge element is at least partially received. The outflow direction of the air introduced into the interior via the outlet opening runs parallel to a central axis of the flow section that extends axially. The discharge element and the receiving element are also rotatably mounted relative to each other about a rotational axis. In order to introduce air into the passenger compartment of the motor vehicle via the air outlet in a particularly efficient manner, the air outlet, according to the invention, has a drive device, in particular exactly one, by means of which the outlet element and the receiving element are rotated about the axis of rotation relative to each other. Furthermore, the axis of rotation extends in the axial direction of the receiving element, and the outlet opening and the receiving opening are arranged eccentrically to each other. The rotation of the outlet element and the receiving element about the axis of rotation relative to each other is accompanied by a change in the orientation of the central axis of the flow section relative to the axial direction of the receiving element in order to adjust the outflow direction, thereby in particular adjusting or changing the outflow direction of the air. 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. 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 perspective view of an air outlet according to a first embodiment; Fig. 2 a schematic partial sectional side view of an air outlet according to the first embodiment; Fig. 3 a schematic front view of an air outlet according to the first embodiment; Fig. 4 a schematic perspective view of an air outlet according to a second embodiment; Fig. 5 a schematic partial sectional side view of an air outlet according to the second embodiment; Fig. 6 a schematic front view of an air outlet according to the second embodiment; Fig. 7 a further schematic partial sectional view of an air outlet according to the second embodiment; Fig.Fig. 8 is a schematic perspective view of an air outlet according to a third embodiment of the invention; Fig. 9 is a schematic partial sectional side view of an air outlet according to the third embodiment of the invention; Fig. 10 is a schematic front view of an air outlet according to the third embodiment of the invention; Fig. 11 is another schematic partial sectional view of an air outlet according to the third embodiment of the invention; Fig. 12 is a schematic perspective view of an air outlet according to a fourth embodiment of the invention; Fig. 13 is a schematic partial sectional side view of an air outlet according to the fourth embodiment of the invention; Fig. 14 is a schematic front view of an air outlet according to the fourth embodiment of the invention; and Fig. 15 is another schematic partial sectional view of an air outlet according to the fourth embodiment of the invention. In the figures, identical or functionally equivalent elements are provided with the same reference symbols. Fig. 1 shows a schematic perspective view of an air outlet 1 for a ventilation system of a motor vehicle or for the motor vehicle itself. The air outlet 1 has a discharge element 2, which is designed, for example, as an air nozzle and through which air can flow. The discharge element 2 has an outlet opening 3 through which air can flow, and through which air can be discharged from the outlet element 2 and is introduced, for example, directly, into an interior space 4 of the motor vehicle. This is particularly evident in Fig. 2, in which the air outlet 1 is shown in a schematic, in particular a lateral, partial sectional view. The outlet opening 3 has, for example, a round, in particular circular, cross-section. As shown in Fig. 2, the outlet element 2, in particular the flow section 5, opens into the interior 4 via the outlet opening 3, preferably directly. In particular, the air outlet 1 can be arranged or is arranged at least partially, for example predominantly or completely, in the interior 4 of the motor vehicle. The outlet element 2 further comprises a flow section 5 arranged upstream of the outlet opening 3, through which air can flow or is flowing. The flow section 5 has, for example, a round, in particular circular, cross-section. For example, the outlet element 2 comprises a second flow section 6 arranged upstream of the flow section 5, through which air can flow or is flowing. The second flow section 6 extends, for example, obliquely or perpendicularly to the flow section 5. For example, the outlet element 2, in particular the second flow section 6, has at least one connection point 7 through which the outlet element 2, in particular the air outlet 1, can be fluidically connected or is connected to at least one duct element of the ventilation device that is formed separately from the air outlet 1. For example, the outlet opening 3 is arranged at one end of the air outlet 1, and the connection point 7 is arranged at the other end of the air outlet 1. As can be seen in Figs. 1 and 2, the air outlet 1 has a receiving element 8 that is separate from the outlet element 2. The receiving element 8 can also be seen in Fig. 3, which shows a schematic front view of the air outlet 1. The receiving element 8 has a receiving opening 9 in which the outlet element 2, for example, the flow section 5, can be received or accommodated, at least partially. For example, the receiving element 8 surrounds the outlet element 2, in particular the flow section 5, at least predominantly, and in particular completely, in the circumferential direction of the outlet element 2. The receiving element 8 is, for example, annular in shape. For example, the receiving opening 9 has a round, in particular circular, cross-section. As illustrated in Fig. 2, the outflow direction 10 of the air to be introduced or introduced into the interior space 4 via the outlet opening 3 runs parallel to a central axis 12 of the flow section 5 extending in the axial direction 11 of the flow section 5. Accordingly, the outflow direction 10 is determined in particular by the central axis 12, that is, in particular by a position or orientation of the central axis 12 in space, i.e., in particular predetermined or set. The outlet element 2 and the receiving element 8 are rotatably mounted about an axis of rotation 13 relative to each other, for example by at least 360 degrees. The axis of rotation 13 runs, for example, parallel to an axial direction 14 of the receiving element 8, in particular the receiving opening 9. For example, the axis of rotation 13 is arranged coaxially with the receiving opening 9. For example, the axis of rotation 13 runs parallel to an axial direction of the second flow section 6. In order to introduce air into the interior space 4 in a particularly efficient and, in particular, variable manner via the air outlet 1, the air outlet 1 has a drive unit 15, in particular exactly one, which is designed, for example, as a piezoelectric drive unit 15, that is, in particular as a piezoelectric actuator. It is provided that the drive unit 15 causes the outlet element 2 and the receiving element 8 to rotate about the axis of rotation 13 relative to each other. As can be seen particularly well in Fig. 2, the axis of rotation 13 runs in the axial direction 14 of the receiving element 8, in particular the receiving opening 9. The outlet opening 3 and the receiving opening 9 are arranged eccentrically to each other, that is, offset from each other, in particular in the radial direction of the outlet opening 3 and / or the receiving opening 9.Rotating the outlet element 2 and the receiving element 8 about the axis of rotation 13 relative to each other involves a change, in particular an adjustment, of the alignment of the central axis 12 of the flow section 5 relative to the axial direction 14 of the receiving element 8 and / or relative to the axis of rotation 13 to adapt the outflow direction 10, whereby in particular the outflow direction 10 is adapted or adjusted, i.e. in particular changed. When the outlet element 2 and the receiving element 8 rotate about the axis of rotation 13 relative to each other, a precession movement of the outlet element 2 and the receiving element 8 relative to each other preferably occurs. This precession movement can be understood, in particular, as a precession movement of the outlet element 2 relative to the receiving element 8 and / or a precession movement of the receiving element 8 relative to the outlet element 2. During this precession movement, for example, at least a longitudinal segment of the central axis 12, which extends, in particular, obliquely to the axis of rotation 13, rotates about the axis of rotation 13, for example, by at least 360°. This means that the precession movement is, for example, a precession movement by at least 360°. In particular, during the precession movement, at least the longitudinal segment of the central axis 12 revolves around the axis of rotation 13, for example, completely, that is, in particular by 360 degrees.The outflow direction 10 can thus be precisely adjusted, in particular by 360 degrees, which allows the air introduced into the interior space 4 to be directed locally to different sub-areas in the interior space 4. Figures 1, 2 to 3 show the air outlet 1 according to a first embodiment. In this first embodiment, the drive unit 15 is designed to drive, specifically the outlet element 2 and the receiving element 8, to rotate them about the axis of rotation 13 relative to each other. This means that the drive unit 15 allows the outlet element 2 to be rotated about the axis of rotation 13 relative to the receiving element 8, which is stationary. This rotation allows the central axis 12 to be adjusted, thereby adjusting the direction of airflow 10.In the first embodiment, preferably, when the outlet element 2 and the receiving element 8 are rotated relative to each other, i.e., when the outlet element 2 is rotated about the axis of rotation 13 relative to the receiving element 8, deformation of the outlet element 2, in particular of the flow section 5, is avoided. Accordingly, in the first embodiment, the outlet element 2 is designed, for example, as a rigid eccentric nozzle. Thus, the nozzle is formed, for example, from a rigid body. Figures 4, 5, 6 to 7 show the air outlet 1 according to a second embodiment. Figures 8, 9, 10 to 11 show the air outlet 1 according to a third embodiment. Figures 12, 13, 14 to 15 show the air outlet 1 according to a fourth embodiment. First, the commonalities of the second, third, and fourth embodiments are explained. In the second, third and fourth embodiments, it is provided that the receiving element 8 can be driven or is driven by means of the drive device 15, in particular without the mediation of the outlet element 2, in order to rotate the receiving element 8 about the axis of rotation 13 relative to the outlet element 2, which is in particular stationary, whereby the receiving element 8 is in particular rotated about the axis of rotation 13 relative to the outlet element 2.Furthermore, in the second, third, and fourth embodiments of the air outlet 1, the rotation of the outlet element 2 and the receiving element 8 about the axis of rotation 13 relative to each other, that is, the rotation of the receiving element 8 about the axis of rotation 13 relative to the outlet element 2, is accompanied by a deformation, in particular elastic, of the outlet element 2, especially of the flow section 5. This deformation allows, or does cause, a change in the orientation of the central axis 12 of the flow section 5 relative to the axial direction 11 or relative to the axis of rotation 13, in order to adjust the outflow direction 10. Thus, the deformation of the outlet element 2, especially of the flow section 5, is accompanied, in particular, by an adjustment or change in the outflow direction 10.The deformation of the outlet element 2, also referred to as deformation, can be caused at least partially by an eccentric geometry of the air outlet 1, in particular by the eccentric arrangement of the outlet opening 3 and the receiving opening 9. This deformation can cause the outlet element 2, also referred to as a nozzle, to become ovalized. In the second, third, and fourth embodiments, the air outlet 1 has at least one coupling element 16, which is, for example, designed separately from the outlet element 2 and / or separately from the receiving element 8. The receiving element 8 and the outlet element 2 can be coupled or connected to each other via the coupling element 16, for example, directly, in particular mechanically and / or magnetically.The coupling element 16 is connectable or connected to the receiving element 8, whereby the coupling element 16 is movable or rotatable with the receiving element 8, in particular with the receiving element 8, when the receiving element 8 is rotated about the axis of rotation 13 relative to the outlet element 2, in particular about the axis of rotation 13, whereby when the outlet element 2 and the receiving element 8 are rotated about the axis of rotation 13 relative to each other, i.e., when the receiving element 8 is rotated about the axis of rotation 13 relative to the outlet element 2, the deformation of the outlet element 2, in particular of the flow section 5, can be effected or is effected via the coupling element 16 or by means of the coupling element 16. In the second and third embodiments, the coupling element 16 is designed as a mechanical coupling element, whereby the receiving element 8 and the outlet element 2 can be mechanically coupled to each other via the coupling element 16. For example, a portion of the outlet element 2, in particular the flow section 5, can be mechanically acted upon by the coupling element 16, whereby at least this portion, in particular relative to the axis of rotation 13 and / or relative to the second flow section 6, can be deflected or is deflected, thereby, for example, adjusting or changing the central axis 12, in particular to adapt the outflow direction 10. The coupling element 16 is, for example, designed as a pusher, which acts on the outlet element 2, in particular at least the aforementioned portion, with at least one pressure force.This compressive force can cause the outlet element 2 to deform. Alternatively or additionally, the coupling element 16 can exert at least a tensile force on the outlet element 2, in particular at least the aforementioned sub-area, which can cause the outlet element 2 to deform. For example, the coupling element 16 is formed integrally with the receiving element 8, which is particularly designed as a ring. This means that the coupling element 16 can be manufactured together with the receiving element 8 in a single process step. Alternatively, the coupling element 16 is formed separately from the receiving element 8. This means that after the receiving element 8 has been manufactured, the coupling element 16 can be mounted on the receiving element 8, particularly on the ring, preferably in a captive manner. This mounting is carried out, in particular, as a separate part on the receiving element 8. A fastening area, by means of which the coupling element 16 is attached to the receiving element 8, in particular directly, is arranged, for example, on an outer surface of the receiving element 8, in particular facing outwards in the radial direction of the receiving element 8. In particular, the fastening area is arranged outside the outlet element 2, that is, in particular on an outer surface of the outlet element 2 that faces outwards in the radial direction of the outlet element 2. Furthermore, the coupling element 16 has, for example, a coupling area by means of which the coupling element 16 can be coupled or connected, for example mechanically and / or magnetically, in particular directly, to the outlet element 2, in particular to the flow section 5. This coupling area is arranged, for example, on an inner surface of the outlet element 2 that faces inwards in the radial direction of the outlet element 2.Accordingly, a holder of the coupling element 16, which in particular pushes the outlet element 2 at least partially outwards in a radial direction, is fixed to the receiving element 8 from one end of the outlet element 2, in particular directly. An internal fixing of the coupling element 16 is not possible, for example, because such a fixing would not be possible or would be particularly complex if the receiving element 8 were to rotate completely around the axis of rotation 13. Figure 4 shows a schematic perspective view of the air outlet 1 according to the second embodiment. Figure 5 shows a schematic partial sectional view of the air outlet 1 according to the second embodiment. Figure 6 shows a schematic front view of the air outlet 1 according to the second embodiment. The air introduced into the interior 4 is illustrated in Figure 6 by arrows 18. These arrows 18 thus characterize, in particular, the airflow. Figure 7 shows another schematic partial sectional view of the air outlet 1 according to the second embodiment. In the second embodiment, the outlet element 2, and in particular at least the flow section 5, is formed from a film 17, which is particularly flexible or deformable. In the second embodiment, the outlet element 2 is thus formed in particular from the flexible film 17, which can be deformed, in particular bent, by mechanical action of the coupling element 16. Thus, for example, the nozzle is formed from the flexible, in particular tubular, film 17. Figure 8 shows the air outlet 1 according to the third embodiment in a schematic perspective view. Figure 9 shows the air outlet 1 according to the third embodiment in a schematic partial sectional side view. Figure 10 shows the air outlet 1 according to the third embodiment in a schematic front view. Figure 11 shows the air outlet 1 according to the third embodiment in a further schematic partial sectional view. In Fig. 12, the air outlet 1 according to the fourth embodiment is shown in a schematic perspective view. In Fig. 13, the air outlet 1 according to the fourth embodiment is shown in a schematic partial sectional side view. In Fig. 14, the air outlet 1 according to the fourth embodiment is shown in a schematic front view. In Fig. 15, the air outlet 1 according to the fourth embodiment is shown in another schematic partial sectional view. In the third and fourth embodiments, the outlet element 2 has a base body 19 and several lamellae 21 projecting from the base body 19 in a direction 20 towards the interior space 4, in particular directly, for example obliquely or vertically. For example, the lamellae 21 are spaced apart from one another, particularly in the circumferential direction of the outlet element 2 and / or the receiving element 8. Thus, for example, a gap extends between each pair of the respective lamellae 21. For example, the base body 19 forms the second flow section 6. The lamellae 21 form the outlet opening 3. Furthermore, the lamellae 21 limit the flow section 5 in its radial direction outwards, at least partially. In the present case, the deformation of the outlet element 2 comprises at least a pivoting of at least one of the lamellae 21 relative to the base body 19.For example, rotating the receiving element 8 about the axis of rotation 13 relative to the outlet element 2 by 360° results in a pivoting of all lamellae 21 relative to the base body 19. This pivoting can be understood in particular as a deflection of the respective lamella 21 relative to the base body 19, whereby this deflection especially affects the adjustment of the central axis 12 or the outflow direction 10. In the third embodiment, the coupling element 16, in particular equivalent to the second embodiment, is designed as a mechanical coupling element 16. Thus, the respective pivoting of the respective lamella 21 is effected, in particular, by mechanically acting upon the respective lamella 21 by the coupling element 16. For example, one side of the outlet element 2 is pressed radially inwards by the coupling element 16, and another side, which is located opposite the first side, is pressed radially outwards by the coupling element 16, thereby allowing the outlet element 2, in particular the flow section 5, to bend in a desired direction, thus enabling the outflow direction 10 to be adjusted, in particular in a targeted manner. In particular, a partial region of the outlet element 2 bends, and this partial region can be referred to as the "nozzle outlet".The third embodiment thus features, in particular, the lamellae 21, which can be bent by mechanical action of the coupling element 16. Accordingly, the lamellae 21 can be mechanically deformed or shaped. As illustrated in Fig. 11, the coupling element 16 has, for example, a ring 22, wherein a first side 23 of the ring 22 presses, for example, on the lamellae 21, and a second side 24 of the ring 22, different from the first side 23 and in particular opposite the first side 23, pulls, for example, on the lamellae 21. The shape or profile of the ring 22 can, for example, be chosen arbitrarily so that a desired number of lamellae 21, in particular with a desired thickness, can be bent or deformed. In the fourth embodiment, the coupling element 16 is designed as a magnetic coupling element 16, whereby the outlet element 2 and the receiving element 8 can be magnetically coupled to each other via the coupling element 16. Accordingly, the coupling element 16 is designed, for example, as a magnet, in particular as a permanent magnet. To effect the magnetic coupling of the coupling element 16 with the outlet element 2, the outlet element 2 is, for example, magnetically arranged or at least one magnet is arranged on the outlet element 2. For example, a magnet is arranged on each of the respective lamellae 21. Accordingly, in the fourth embodiment, the outlet element 2 is formed, in particular, from the flexible lamellae 21, which can be bent by magnetic influence.This means that the lamellae 21 can be deformed or shaped with the aid of magnets, i.e., magnetically and / or mechanically. As illustrated in Fig. 15, the receiving element 8, for example, has at least one recess 25 in which the coupling element 16, in particular the magnet, is arranged, in particular inserted. Thus, for example, magnets are arranged on the receiving element 8, particularly on one side of the rotatable ring 22, forming, for example, a magnetic north pole. On the opposite side, particularly on the lamellae 21, magnets are arranged, forming, for example, a magnetic south pole. The magnets are permanently attached to their respective mounting positions. In other words, the magnets are permanently mounted to the respective lamella 21, for example, by gluing. For example, the magnets are always oriented with their same magnetic pole facing inwards or outwards. By rotating the ring, the respective magnets can attract and / or repel each other. Because, for example, only two areas on the ring can be magnetically attracted or repelled, the outlet element 2 is, for example, eccentrically flattened.Due to the eccentric orientation of the outlet opening 3 in relation to the axis of rotation 13, the outflow direction 10 is moved, for example, in all directions, in particular wobbling. Instead of individual lamellae 21, the outlet element 2 can be formed from a zigzag-folded film, which is designed, for example, similarly to an accordion. This eliminates gaps between the lamellae 21. Furthermore, it is conceivable to provide the outlet element 2 with a second row of lamellae in addition to the lamellae 21, such that this second row is offset, for example, by half the width of the lamellae 21 of the first row, similar to a fighter jet engine. In particular, one or more ring-shaped rows of magnets can narrow or open the nozzle, similar to a fighter jet engine. Furthermore, it is conceivable that the receiving element 8 can be moved along the axis of rotation 13, that is, in particular along an air duct, by means of a second drive device. Alternatively, this movement can be generated or effected with the same actuator, that is, for example, by means of the drive device 15. A helical motion, which includes rotation and translation, can be involved. The orientation of the outlet element 2, in particular the outlet opening 3, can be continuously adjusted, for example, between 0° and 360°. Furthermore, the inclination of the outlet element 2 can be continuously adjusted, for example, between 0° and a maximum adjustable inclination, for example, if the receiving element 8 is movable or is moved along the axis of rotation 13, i.e., in particular along the air duct. A maximum number of required actuators is, for example, at least one, and in particular exactly one or two. This depends, for example, on the number of openings, in particular the size of a matrix, and on whether each nozzle or individual fields of the nozzle are individually controllable. In order to particularly improve the aesthetics of the air outlet 1, the air outlet 1, in particular the outlet element 2, is covered, for example, by means of at least one cover element and thereby hidden, for example, in particular behind an opening. For example, the air outlet 1, in particular the controllable nozzle, can be used for a cleaning function, for example in a robot taxi also known as a robo-taxi. In this case, dampers can be generated which can be directed at at least one component located in the interior 4, for example a steering wheel, so that the steering wheel can be disinfected. For example, the airflow direction 10 can be adjusted via voice control. This means that the nozzle of the air outlet 1 can be adjusted using voice control. This allows, for example, the driver's eyes to remain on the road. Furthermore, it enables the driver to adjust or operate the rear climate control, for example, for children and / or babies sitting in the back, particularly those on a rear bench seat, using voice control while driving. Alternatively or additionally, convenient control of the air outlet 1 via a touchscreen is possible. Here, the driver can, for example, adjust an arrow on the touchscreen by dragging it (i.e., by at least one dragging motion) and thereby adjust the intensity and / or direction of the air introduced into the interior 4 via a graphic displayed on the touchscreen.Therefore, settings can be adjusted on the touchscreen, particularly via a graphic. For example, all of the driver's settings regarding air outlet 1 can be stored in a vehicle key, so that the driver can find his vehicle exactly as he likes it with regard to the setting of air outlet 1, especially when he gets into the vehicle, and in particular regardless of how another driver has changed everything previously. Furthermore, at least one lighting device is provided for illuminating the air outlet 1. Furthermore, at least one manufacturer's logo can be affixed to the nozzle, particularly in the center. The nozzle's "arms," ​​especially in the center, can have any shape, since the louvers 21 do not need to be guided linearly as with conventional louvers. Reference symbol list 1 Air outlet 2 Outlet element 3 Outlet opening 4 Interior 5 Flow section 6 Second flow section 7 Connection point 8 Receiving element 9 Receiving opening 10 Outflow direction 11 Axial direction of the flow section 12 Central axis of the flow section 13 Axis of rotation 14 Axial direction of the receiving element 15 Drive device 16 Coupling element 17 Foil 18 Arrow 19 Base body 20 Direction 21 Lamella 22 Ring 23 First side 24 Second side 25 Recess QUOTES INCLUDED IN THE DESCRIPTION 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 EP 2 340 178 B1

[0002]

Claims

Air outlet (1) for a ventilation device of a motor vehicle, comprising an outlet element (2) which has an outlet opening (3) through which air can flow, and through which air can be discharged from the outlet element (2) and introduced into an interior (4) of the motor vehicle, and a flow section (5) arranged upstream of the outlet opening (3) through which air can flow, and a receiving element (8) formed separately from the outlet element (2), which has a receiving opening (9) in which the outlet element (2) is received at least partially, wherein an outflow direction (10) of the air to be introduced into the interior (4) via the outlet opening (3) runs parallel to a central axis (12) of the flow section (5) extending in the axial direction (11) of the flow section (5), and the outlet element (2) and the receiving element (8) are rotatably mounted relative to each other about a rotation axis (13).characterized in that the air outlet (1) has a drive device (15) by means of which the outlet element (2) and the receiving element (9) can be rotated about the axis of rotation (13) relative to each other, the axis of rotation (13) extending in the axial direction (14) of the receiving element (8) and the outlet opening (3) and the receiving opening (9) being arranged eccentrically to each other, wherein the rotation of the outlet element (2) and the receiving element (8) about the axis of rotation (13) relative to each other is accompanied by a change in the orientation of the central axis (12) of the flow section (5) relative to the axis of rotation (13) to adjust the outflow direction (10). Air outlet (1) according to claim 1 , characterized in that when the outlet element (2) and the receiving element (8) are rotated about the axis of rotation (13) relative to each other, a precession movement of the outlet element (2) and the receiving element (8) relative to each other occurs. Air outlet (1) according to claim 1 or 2, characterized in that the outlet element (2) can be driven by means of the drive device (15) in order to cause the outlet element (2) and the receiving element (8) to rotate about the axis of rotation (13) relative to each other. Air outlet (1) Claim 3 , characterized in that when the outlet element (2) and the receiving element (8) are rotated relative to each other, deformation of the outlet element (2) does not occur. Air outlet (1) according to claim 1 or 2, characterized in that when the outlet element (2) and the receiving element (8) are rotated about the axis of rotation (13) relative to each other, a deformation of the outlet element (2) occurs, whereby the change in the orientation of the central axis (12) of the flow section (5) relative to the axial direction (14) of the receiving element (8) can be effected to adjust the outflow direction (10). Air outlet (1) according to claim 5, characterized in that the air outlet (1) has a coupling element (16) via which the receiving element (8) and the outlet element (2) can be coupled or connected to each other, and the receiving element (8) can be driven by means of the drive device (15) to rotate the receiving element (8) about the axis of rotation (13) relative to the outlet element (2), wherein the coupling element (16) is connected to the receiving element (8), whereby the coupling element (16) can be moved along with the receiving element (8) when the receiving element (8) is rotated about the axis of rotation (13) relative to the outlet element (2), whereby when the outlet element (2) and the receiving element (8) are rotated about the axis of rotation (13) relative to each other, the deformation of the outlet element (2) can be effected via the coupling element (16). Air outlet (1) according to claim 6, characterized in that the coupling element (16) is designed as a mechanical coupling element (16) or as a magnetic coupling element (16). Air outlet (1) according to one of claims 5 to 7, characterized in that the outlet element (2) is formed from a film (17). Air outlet (1) according to one of claims 5 to 8, characterized in that the outlet element (2) has a base body (19) and several lamellae (21) projecting from the base body (19) in a direction (20) towards the interior space (4), which form the outlet opening (3) and at least partially limit the flow section (5) in the radial direction of the flow section (5) to the outside, wherein the deformation of the outlet element (2) comprises at least a pivoting of at least one of the lamellae (21) relative to the base body (19). Method for operating an air outlet (1) for a ventilation device of a motor vehicle, wherein the air outlet (1) comprises: • an outlet element (2) which has an outlet opening (3) through which air flows, through which air is discharged from the outlet element (2) and introduced into an interior space (4) of the motor vehicle, and a flow section (5) arranged upstream of the outlet opening (3) through which the air flows, and • a receiving element (8) formed separately from the outlet element (2), which has a receiving opening (9) in which the outlet element (2) is received at least partially,wherein an outflow direction (10) of the air introduced into the interior (4) via the outlet opening (3) runs parallel to a central axis (12) of the flow section (5) extending in the axial direction (11) of the flow section (5) and the outlet element (2) and the receiving element (8) are rotatably mounted about a rotation axis (13) relative to each other, characterized in that the air outlet (1) has a drive device (15) by means of which a rotation of the outlet element (2) and the receiving element (8) about the rotation axis (13) relative to each other is effected, the rotation axis (13) runs in the axial direction (14) of the receiving element (8) and the outlet opening (3) and the receiving opening (9) are arranged eccentrically to each other,wherein the rotation of the outlet element (2) and the receiving element (8) about the axis of rotation (13) relative to each other is accompanied by a change in the orientation of the central axis (12) of the flow section (5) relative to the axis of rotation (13) in order to adjust the outflow direction (10).

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