Air vents for ventilating the interior of a vehicle

Description

[0001] The invention relates to an air vent for ventilating an interior of a vehicle, according to the preamble of patent claim 1. The invention also relates to a vehicle having at least one such air vent.

[0002] DE 10 2015 017 009 A1 discloses an outlet device for ventilating a vehicle interior by generating an outlet flow. The outlet device comprises a housing with an inner surface forming an outlet section, which extends in an axial direction between an air inlet opening and an air outlet opening located opposite the air inlet opening. The inner surface is formed circumferentially symmetrically around a housing axis and has an axially circumferential section and an end section of the outlet section, which forms the air outlet opening.

[0003] EP 3 530 506 A1 discloses an air vent comprising a housing with a section corresponding to the outer surface of a cylinder, which has an air inlet opening and an air outlet opening. DE 10 2019 119 732 A1 discloses a passenger air vent for a motor vehicle. Furthermore,

[0004] DE 10 2019 131 554 A1 an air outlet device for discharging an air flow along an outlet direction into a passenger compartment of a vehicle.

[0005] The generic US 2018 319 255 A1 discloses a vent for ventilating a passenger compartment of a motor vehicle, including a rectangular housing and a rectangular air outlet opening. To guide an air flow and control an air volume, a flow-circulating body is proposed, which is longitudinally and transversely displaceable within the housing and can also be used to close the air outlet opening.

[0006] EP 3 632 726 A1 discloses an air vent for a vehicle, comprising a housing defining an air inlet opening, an air outlet opening and a cavity, wherein the housing has a first wall and a second wall which face each other and define a constriction of the cavity up to the outlet opening, wherein the air outlet further comprises a guide means arranged in the cavity, with a first end near the outlet opening, wherein the guide means is movable between a first position in which the first end is arranged next to the first wall and a second position in which the first end is arranged next to the second wall.

[0007] DE 10 2005 027 746 A1 relates to an air vent for the passenger compartment of a vehicle, which has a cover arranged on a housing on the air outlet side of an air flow duct, with slot-shaped outflow openings separated by cover webs and air guide elements assigned to these and whose position relative to them can be changed, as well as an operating element for these. It solves the problem of designing such an air vent such that its visual appearance is high-quality and the outflow direction of the partial air flows forming the air flow is essentially the same. For this purpose, the cover webs are tapered in cross-section on the inside of the housing to form air guide surfaces upstream of the air flow, and the air guide elements are essentially wedge-shaped or convexly curved on the inside of the housing upstream of the air flow and can be adjusted between a closed position in the respective outflow opening and open positions selectable on the inside of the housing.The open positions are determined either by the respective air guide element being positioned on one of the two aperture bars defining the respective outflow opening or by a distance between the respective air guide element and the adjacent aperture bars.

[0008] The object of the present invention is to provide an air vent for ventilating an interior of a vehicle, as well as a vehicle with at least one such air vent, so that a particularly advantageous adjustability of the air vent can be realized in a particularly advantageous manner.

[0009] This object is achieved by an air vent having the features of patent claim 1 and by a vehicle having the features of patent claim 8. Advantageous embodiments with expedient further developments of the invention are specified in the remaining claims.

[0010] A first aspect of the invention relates to an air vent for ventilating the interior of a vehicle, also referred to as a passenger cell or passenger compartment. This means that the vehicle, preferably designed as a motor vehicle, in particular as a passenger car, in its fully manufactured state has the air vent, which is preferably arranged in the interior. In particular, the interior is formed by a vehicle structure designed, for example, as a self-supporting body. Ventilating the interior means that air is supplied to the interior, thus introducing the said air into the interior. For this purpose, the air vent can be flowed through. The air vent has a housing, also referred to as an outer housing, through which the said air can flow to ventilate the interior.This means that during operation of the air vent, the air flows through the air vent and is introduced into the interior by means of the air vent, thereby ventilating the interior. This means in particular that the air flowing through the air vent or the housing and flowing out of the air vent or the housing flows into the interior. For this purpose, the air vent has, for example, an outlet opening through which the air flowing through the housing and thus through the air vent can flow, wherein the air flowing through the outlet opening and thereby flowing out of the air vent, in particular from the housing, flows into the interior. In particular, the outlet opening is an opening in the housing, so that, for example, the outlet opening is delimited, in particular directly, by the housing.In particular, the outlet opening is completely circumferentially bounded by the housing, in particular directly, along its circumferential direction. It is particularly conceivable that the housing ends at the outlet opening, particularly towards the interior.

[0011] The air vent has a flow body arranged in the housing, for example formed separately from the housing, which flow body is also referred to as the inner body. The air flowing through the housing can flow around the flow body, in particular on the outer circumference. This means that the flow body has an outer circumference surface around which the air flowing through the housing can flow, in particular directly. For example, the outer circumference surface of the flow body faces an inner circumference surface of the housing, wherein, for example, the inner circumference surface of the housing delimits an air duct of the housing and thus of the air vent, in particular directly, wherein the air to be supplied to the interior can flow through the air duct and thus the housing.

[0012] The air vent also has a guide flap, which is arranged upstream of the flow body and is movable relative to the housing and relative to the flow body and is also referred to as an adjustable flap or flap. By means of the guide flap, an outflow direction in which the air flows out of the air vent and, in particular simultaneously, flows into the interior, can be adjusted, i.e. changed or varied, in particular by moving the guide flap relative to the housing and preferably also relative to the flow body. The feature that the guide flap is arranged upstream of the flow body means that the air flowing through the housing, in particular the air duct, first flows against and around the guide flap on its way through the housing, in particular through the air duct, to the interior, in particular to the outlet opening, and then flows around the flow body.Because the air flows against and around the guide flap on its way through the housing to the interior, the air can, for example, be deflected, redirected or guided by means of the guide flap in order to adjust the outflow direction.

[0013] The outlet opening of the air vent extends, for example, in a first plane, which is also referred to as the outlet plane. For example, the housing has an inlet opening through which the air can be introduced into the housing, in particular into the air duct. For example, the inlet opening extends in a second plane, which is also referred to as the inlet plane. It is conceivable that the first plane and the second plane are spaced apart from one another and run parallel to one another.

[0014] In order to be able to realize a particularly advantageous adjustability of the air vent in a particularly advantageous, in particular particularly lightweight and cost-effective manner, the invention provides that the flow body is translationally movable relative to the housing and preferably also relative to the guide flap, whereby a flow cross-section of the air vent through which the air can flow and arranged in the housing is adjustable, i.e., changeable or variable. In particular, the said flow cross-section is the narrowest flow cross-section of the air vent through which the air can flow on its way through the air vent.The feature that the flow cross-section can be adjusted by translational movement of the flow body relative to the housing and preferably also relative to the guide flap means that the flow cross-section can be optionally enlarged or reduced by translational movement of the flow body relative to the housing and preferably also relative to the guide flap. By adjusting the flow cross-section, for example, the amount of air to be supplied to the interior can be adjusted as required. Furthermore, by adjusting the flow cross-section, a so-called throw distance or injection distance of the air can be adjusted. The throw distance or injection distance is understood to be a distance that the air flowing through the air outlet, in particular starting from the air outlet or starting from the outlet opening, penetrates into the interior.Since it is now possible according to the invention to adjust the flow cross-section and thus the amount of air supplied to the interior and / or the throw distance of the air supplied to the interior by means of the flow body, an additional adjustment or closing flap, in particular for closing the air vent, can be dispensed with, so that the number of parts and thus the weight and cost of the air vent can be kept particularly low. Thus, the air vent and thus, for example, the amount of air supplied to the interior and / or the throw distance of the air supplied to the interior can be adjusted in a space-saving and cost-effective manner.Because the flow body is translationally movable relative to the housing, a particularly advantageous visual presentation of the air outlet, in particular its mode of operation, can be achieved, in particular, for example, because a front side of the flow body facing the interior is visually perceptible, in particular via the outlet opening, in particular by occupants in the interior.

[0015] For example, by translationally moving the flow body relative to the housing, at least two different values ​​of the flow cross section can be set. A first of the values ​​is, for example, zero or greater than zero, with a second of the values ​​being, for example, greater than the first value. By setting the second value, for example, a larger amount of air flows into the interior and / or the throw distance is greater than when the first value of the flow cross section is set. By setting the first value, for example, particularly when the first value is zero, the flow cross section can be fluidically blocked, whereby air cannot flow through the air vent, thus preventing air or the said air from flowing through the air vent into the interior.In particular, a flow velocity of the air vents can be adjusted, i.e., varied, by adjusting the flow cross-section. For example, the air flows out of the air vent at the stated flow velocity and into the interior, in particular, through the outlet opening. In particular, the throw distance can be adjusted, i.e., varied, in this way.

[0016] According to the invention, for ventilating the interior, the housing can be traversed by air in one flow direction at least upstream of the guide flap. This means that the air flowing through the housing, in particular the air duct, and thus the air outlet, and being supplied to the interior has the aforementioned flow direction at least upstream of the guide flap. This aforementioned flow direction is also referred to as the first flow direction.Since, for example, the air is deflected, redirected or guided by means of the guide flap in order to set the outflow direction, also referred to as the outlet direction, for example, it is conceivable that the air downstream of the guide flap has a second flow direction that is different from the first flow direction, in particular running obliquely or perpendicular to the first flow direction, so that, for example, the air flows through the housing, in particular the air duct, downstream of the guide flap in the second flow direction. It is particularly conceivable that the first flow direction runs perpendicular to the outlet plane and, for example, also perpendicular to the inlet plane. In particular, the first flow direction coincides with an axial direction of the housing and thus of the air vent as a whole.It is conceivable that the outlet opening and / or the inlet opening are circular and thus have the shape of a circle, the center of which lies, for example, on the axial direction of the housing and thus of the air vent as a whole. In particular, the first flow direction is straight, meaning that the first flow direction runs along a straight line on which, for example, the aforementioned center point lies. When reference is made below to the flow direction, this refers to the first flow direction, unless otherwise stated.

[0017] The guide flap is designed to be rotatable relative to at least one housing part and relative to the flow body about an axis of rotation that coincides with the flow direction and thus with the axial direction of the housing and the air vent as a whole, in order to adjust the outflow direction. This allows for particularly extensive adjustability of the air vent or the outflow direction in a particularly cost-effective manner.

[0018] In order to be able to adjust, i.e. vary, the flow cross-section particularly in line with requirements and in a particularly cost-effective manner, it is provided in a further embodiment of the invention that the flow body can be moved back and forth in a translational manner along the flow direction and thus preferably in the axial direction of the housing and the air vent as a whole relative to the housing and preferably also relative to the guide flap, whereby the flow cross-section is adjustable, i.e. variable.

[0019] A further embodiment is characterized in that the flow body is rotationally symmetrical on its outer circumference at least over the majority of its length, and thus at least over more than half of its length running along the flow direction and thus in the axial direction of the air vent. This particularly means that the aforementioned outer circumferential surface of the flow body is rotationally symmetrical at least over the majority of the length of the flow body running along the flow direction. This allows the interior to be supplied with air in a particularly aerodynamic manner.

[0020] In order to be able to achieve particularly advantageous adjustability of the air vent, a further embodiment of the invention provides that the guide flap can be pivoted relative to the housing and relative to the flow body about a pivot axis running perpendicular to the flow direction, in order to thereby adjust the outflow direction. The feature that the pivot axis runs perpendicular to the flow direction is to be understood as meaning that the flow direction runs perpendicular to a flow plane, wherein the flow plane runs, for example, parallel to the outlet plane or coincides with the outlet plane. The pivot axis runs perpendicular to a pivot axis plane, wherein the flow plane and the pivot axis plane run perpendicular to one another.

[0021] In order to be able to rotate the guide flap around the axis of rotation particularly as needed and easily, and thus to adjust the outflow direction as needed, a further embodiment of the invention provides that the housing has the at least one housing part as the first housing part, which is coupled to the guide flap. In addition, the housing has a second housing part, which is arranged, for example, upstream or downstream of the first housing part. The first housing part and, with the first housing part, the guide flap are rotatable about the axis of rotation relative to the second housing part and relative to the flow body. In particular, the first housing part is designed, for example, as a ring, also referred to as an adjusting ring or outer ring, via which the guide flap can be rotated around the axis of rotation particularly as needed and advantageously, in particular by rotating the ring relative to the second housing part.

[0022] In order to achieve particularly extensive adjustability of the air vent in a particularly cost-effective manner, a further embodiment provides a coupling device by means of which the flow body and the guide flap are coupled to one another in such a way that both the flow body and the guide flap can be moved relative to the housing by means of exactly one, in particular electrically operated actuator. In particular, the actuator can be a component of the air vent. Via the coupling device, the actuator can, for example, actuate both the flow body and the guide flap and thereby, for example, move the flow body translationally relative to the housing and move the guide flap relative to the housing, in particular pivot and / or rotate it. This can ensure a particularly cost-effective design of the air vent.

[0023] Finally, it has proven particularly advantageous if the housing is rotationally symmetrical along its inner circumference, at least in one longitudinal region of the housing, with the flow body being arranged in this longitudinal region. This allows for a particularly streamlined air supply to the interior.

[0024] The flow cross-section can be adjusted by translational movement of the flow body relative to the housing, for example in the following way: The flow body is, for example, translationally movable, and thus displaceable, relative to the housing between at least two different positions. In a first of the positions of the flow body, for example, the first value of the flow cross-section is set, and in a second of the positions, for example, the second value of the flow cross-section is set. For example, at least a first wall region of the flow body is arranged closer to a second wall region of the housing in the first position than in the second position, so that, for example, the flow cross-section or the value of the flow cross-section is smaller in the first position than in the second position.In particular, it is conceivable that in the first position the first wall region rests, in particular directly, against the second wall region, whereby, for example, in the first position the flow cross-section is set to zero, and thus closed. Furthermore, it is conceivable that at least in the second position the wall regions directly delimit the flow cross-section. For example, it is conceivable that the second wall region tapers in the flow direction; for example, the first wall region, in particular, also tapers in the flow direction. This allows the flow cross-section to be adjusted particularly advantageously.

[0025] A second aspect of the invention relates to a vehicle, preferably designed as a motor vehicle, in particular as a passenger car, which has at least one air vent 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.

[0026] A further advantage of the invention is that, because the guide flap is arranged upstream of the flow body, the guide flap is not visually visible, i.e., not visually perceptible, to occupants in the interior. Thus, the adjustment of the outlet opening, also referred to as air steering, can be carried out without any actual parts being visible to persons in the interior, namely by the guide flap arranged upstream of the flow body, which is arranged behind the flow body with respect to a viewing direction in which a person in the interior views the air vent and in particular the flow body, and is therefore not visible to the person. Furthermore, the invention enables a particularly advantageous integration of at least one or more additional functions into the flow body. For example, lighting can be integrated into the flow body.This means that, for example, at least one light source is arranged on, in particular in, the flow body, which can provide light, in particular using electrical energy, which can be coupled into the interior, for example, in particular via the outlet opening, and is thus, for example, visually perceptible to a person present in the interior. Alternatively or additionally, a fragrance can be integrated into the flow body. Thus, the flow body has, for example, at least one or more outlet openings through which a fragrance can flow, which can be provided, for example, from a fragrance source.The air flowing around the flow body and through the air outlet can, for example, take with it the fragrance flowing through the outlet opening and, in particular, transport it into the interior via the outlet opening, whereby a particularly advantageous fragrance of the interior can be achieved.

[0027] Further advantages and details of the invention will become apparent from the following description of a preferred embodiment and from the drawing.

[0028] The drawing shows in: Fig. 1 is a schematic longitudinal sectional view of an air vent for ventilating an interior of a vehicle; Fig. 2 is a schematic front view of the air vent; Fig. 3 is a further schematic sectional view of the air vent; Fig. 4 is a further schematic sectional view of the air vent; Fig. 5 is a partial schematic and perspective top view of the air vent; Fig. 6 is a partial schematic and perspective longitudinal sectional view of the air vent; Fig. 7 is a partial schematic and perspective longitudinal sectional view of the air vent; Fig. 8 is a partial schematic and perspective cross-sectional view of the air vent; and Fig. 9 is a partial schematic and perspective cross-sectional view of the air vent.

[0029] In the figures, identical or functionally identical elements are provided with the same reference symbols.

[0030] Fig. 1 shows, in a schematic longitudinal sectional view, an air vent 10 for ventilating an interior 12, also referred to as a passenger cell or passenger compartment, of a vehicle, which is preferably designed as a motor vehicle, in particular as a passenger car, and which, in its fully manufactured state, has the air vent 10. The air vent 10 is also referred to as an air nozzle or ventilation nozzle, although the air vent 10 does not necessarily have to be designed as a nozzle in the actual technical sense. The air vent 10 has a housing 14 through which air, also referred to as interior air, can flow to ventilate the interior 12.This means that during operation of the air vent 10, the said air flows through the housing 14 and thus the air vent 10 and, in particular, flows out of the air vent 10, thus out of the housing 14, and, in particular, simultaneously, flows into the interior 12. As a result, the air is supplied to the interior 12, thus being introduced into the interior 12, whereby the interior 12 is ventilated.

[0031] The housing 14 has an air duct 16 through which air can flow, which is delimited, for example, in particular directly, by an inner circumferential surface 18 of the housing 14. The air vent 10 has a flow body 20 arranged in the housing 14 and around which air can flow, in particular directly. In particular, the flow body 20 has an outer circumferential surface 22 which, for example, in particular in the radial direction of the housing 14 and thus of the air vent 10 as a whole, faces the inner circumferential surface 18. During the aforementioned operation, for example, the air flows through the air duct 16 and thus through the housing 14, and the air flows around the outer circumferential surface 22 and thus the flow body 20, in particular directly. The flow body 20 is also referred to as the inner body.

[0032] The air vent 10 also has a guide flap 24 arranged in the housing 14, which is located upstream of the flow body 20. The housing 14, the guide flap 24, and the flow body 20 are preferably separate components, which can, for example, be coupled to one another at least indirectly. In particular during operation, the air flowing through the air duct 16 and thus the housing 14 flows, in particular directly, against the guide flap 24, also referred to as a flap or control flap, whereby, for example, the guide flap 24 deflects, diverts, or directs the air flowing through the air duct 16.Thus, by means of the guide flap 24, the air flowing through the air duct 16 can be deflected or diverted as required by moving the guide flap 24 relative to the housing 14 and relative to the flow body 20, whereby an outflow direction in which the air flows out of the air outlet 10 and into the interior 12 can be adjusted, i.e. varied. Fig. 1 The outflow direction, which is set in particular by the guide flap 24, is Fig. 1 illustrated by an arrow 26. It can be seen that the air vent 10 has an outlet opening 28 which extends in an imaginary outlet plane 30. The outlet opening 28 is completely circumferential along its circumferential direction and is directly delimited by the housing 14, so that the outlet opening 28 is an opening in the housing 14. The air duct 16 opens into the interior 12 via the outlet opening 28, so that the air flows through the air duct 16 and through the outlet opening 28 during operation and flows into the interior 12 via the outlet opening 28, in particular along or in the outflow direction illustrated by the arrow 26.

[0033] In the exemplary embodiment shown in the figures, the housing 14 and thus the air vent 10 also have an inlet opening 74, through which the air can be introduced, in particular in or along the first flow direction, into the air duct and into the housing 14. For example, the inlet opening 74 extends in an inlet plane 76, which preferably runs parallel to the outlet plane 30 and is spaced from the outlet plane 30.

[0034] In order to be able to realize a particularly advantageous adjustability of the air vent 10 in a particularly advantageous manner, the flow body 20 is translationally movable relative to the housing 14 and preferably also relative to the guide flap 24, which in Fig. 1 is illustrated by a double arrow 32. This means that the flow body 20 can be moved translationally back and forth, in particular along a straight line illustrated by the double arrow 32, thus along a straight direction of movement relative to the housing 14 and preferably also relative to the guide flap 24, whereby a flow cross section Q of the air vent 10 arranged in the housing 14 through which the air flowing through the air duct 16 can flow can be adjusted, that is to say changed or varied.

[0035] In Fig. 1 An arrow 34 illustrates a first flow direction in which the air flowing through the air duct 16 and thus the housing 14 flows at least upstream of the guide flap 24 through the air duct 16 and thus through the housing 14. Since the air flowing through the air duct 16 flows against and around the guide flap 24, in particular directly, and can thereby be deflected, redirected, diverted or guided by the guide flap 24, in particular starting from the first flow direction, it is conceivable that the air flowing through the air duct 16 downstream of the guide flap 24 flows through the air duct 16 and thus the housing 14 in a second flow direction different from the first flow direction, wherein, for example, the second flow direction runs obliquely or perpendicular to the first flow direction. Fig. 1 the second flow direction is illustrated by way of example by an arrow 36. Since the guide flap 24 is movable relative to the housing 14, the second flow direction can, for example, be set and thus changed. It is conceivable to move the guide flap 24 relative to the housing 14 into a guide position in which, for example, the second flow direction corresponds to the first flow direction, thus coincides with the first flow direction or runs parallel to the first flow direction. From the double arrow 32 and the arrow 34, it can be seen that the flow body 20 can be moved translationally back and forth relative to the housing 14 along the first flow direction illustrated by the arrow 34, whereby the flow cross-section Q can be adjusted.Thus, for example, the straight direction of movement illustrated by the double arrow 32 coincides with the straight, first flow direction illustrated by the arrow 34. In the exemplary embodiment shown in the figures, the direction of movement and the first flow direction run in the axial direction of the housing 14 and thus of the air vent 10. In other words, the first flow direction and the direction of movement coincide with the axial direction of the air vent 10 and the housing 14, respectively. The axial direction of the housing 14 and thus of the air vent 10 as a whole runs perpendicular to the outlet plane 30. For example, as can be seen from . Fig. 2 As can be seen, the outlet opening 28 is circular and thus in the shape of a circle, the center M of which lies on the axial direction and thus on a straight line coinciding with the axial direction. In particular, the direction of movement (double arrow 32) and the first flow direction (arrow 34) also lie on the aforementioned straight line.

[0036] As from Fig. 2 can be seen, for example, persons present in the interior 12 can see, and thus visually perceive, the flow body 20, thus a front face 38 of the flow body 20, in particular through the outlet opening 28. Due to the fact that the flow body 20 is translationally movable relative to the housing 14, a particularly advantageous staging of the translational movement of the flow body 20 and thus the adjustment of the flow cross-section Q can be realized.

[0037] Looks particularly good Fig. 1 It can be seen that the flow body is rotationally symmetrical on the outer circumference at least over its predominant length, which runs along the first flow direction and thus in the axial direction of the air vent 10. In particular, the outer circumferential surface 22 is rotationally symmetrical on the outer circumference at least over the predominant length, i.e. at least over more than half, of the length of the flow body 20 running in the axial direction of the air vent 10.

[0038] As from Fig. 3 und 4 As can be seen, the guide flap 24 can be pivoted relative to the housing 14 and also relative to the flow body 20 about a pivot axis running perpendicular to the flow direction and thus perpendicular to the axial direction of the air vent and thus particularly in the radial direction of the air vent 10, in order to thereby adjust the outflow direction. For example, a base element 40 is arranged in the housing 14. In this case, it is particularly conceivable for the flow body 20 to be translationally movable, and thus displaceable, relative to the base element 40, in particular along the direction of movement, in order to thereby adjust the flow cross-section Q. The base element 40 has a bearing region 42, which in the present case is designed as a pin or stud and which in this case is cylindrical on the outer circumference.A bearing sleeve 44 is slidably arranged on the bearing area 42, which is thus displaceable along the bearing area 42 and in particular along the direction of movement relative to the housing 14. A lever 46 is articulated to the bearing sleeve 44, also referred to as a sliding sleeve, and is articulated to the guide flap 24. A connection point, at or in which the lever 46 is articulated to the guide flap 24, is spaced from the pivot axis. In particular, the guide flap 24 is mounted on the housing 14 or coupled to the housing 14 so as to be pivotable about the pivot axis relative to the housing 14.If the bearing sleeve 44 is now displaced relative to the bearing region 42 and relative to the housing 14, in particular along the direction of movement, the guide flap 24 is pivoted about the pivot axis relative to the housing 14 due to the articulated coupling of the lever 46 both with the bearing sleeve 44 and with the guide flap 24. In this case, . Fig. 3 a first pivoting position of the guide flap 24, and Fig. 4 shows a second pivoting position of the guide flap 24, wherein the guide flap 24 can be pivoted and thus moved relative to the housing 14 by moving the bearing sleeve 44 into the different pivoting positions.

[0039] Furthermore, the guide flap 24 is rotatable about an axis of rotation D coinciding with the first flow direction and thus with the axial direction of the air vent 10, relative to at least one housing part 48 of the housing 14 and also relative to the flow body 20 and, for example, also relative to the base element 40, in order to thereby adjust and therefore vary the outflow direction. The housing 14 has the housing part 48 as the first housing part. Thus, the housing part 48 is a first housing part of the housing 14 and is also referred to as the first housing part. The housing 14 has a second housing part 50, which in the present case is designed as a ring and is also referred to as the outer ring. The housing part 50 is coupled to the guide flap 24 and is therefore rotatable with the guide flap 24 about the axis of rotation D relative to the first housing part 48 and relative to the flow body 20 in order to thereby adjust the outflow direction.In particular, the guide flap 24 is coupled to the housing part 50 so as to be pivotable about the aforementioned pivot axis relative to the housing part 50, so that, for example, the pivot axis rotates with the housing part 50 about the rotation axis D relative to the housing part 48. Thus, the guide flap 24 can be rotated about the rotation axis D relative to the housing part 48 into at least two mutually different rotational positions in order to be able to vary the outflow direction as required.

[0040] Out of Fig. 5 It can be seen that the air vent 10 has a coupling device 52, also referred to as kinematics, by means of which, as will be explained in more detail below, the flow body 20 and the guide flap 24 are coupled to one another in such a way that by means of exactly one, in particular electrically operable, actuator of the air vent 10 both the flow body 20 and the guide flap 24 can be moved relative to the housing 14. In conjunction with Fig. 6 It can be seen that the coupling device 52 has a first coupling element 54, which in the present case is designed as a first disk, in particular as a first rotary disk. The first rotary disk is rotatable about a first coupling element axis of rotation relative to the housing 14. In addition, the first coupling element 54 is articulatedly coupled to the flow body 20 in such a way that when the first coupling element 54 is rotated about the first coupling element axis of rotation relative to the housing 14, the flow body 20 is thereby displaced along the direction of movement relative to the housing 14. If, for example, the first coupling element 54 is rotated about the first coupling element axis of rotation in a first direction of rotation, the flow body 20 is displaced, for example, in a first direction relative to the housing 14, and thus moved translationally.For example, if the first coupling element 54 is rotated about the first coupling element rotation axis in a second rotational direction opposite to the first rotational direction relative to the housing 14, the flow body 20 is thereby displaced, for example, in a second direction opposite to the first direction relative to the housing 14. For example, the directions coincide with the direction of movement. For example, the flow cross-section Q is increased by moving the flow body 20 in the first direction; for example, the flow cross-section is reduced by moving the flow body 20 in the second direction.

[0041] The coupling device 52 also comprises a second coupling element 56, which in this case is designed as a second rotary disk. The coupling element 56 is rotatable about a second coupling element rotation axis relative to the housing 14, wherein, for example, the coupling element rotation axes are spaced apart from one another and run parallel to one another, or the coupling element rotation axes run skew relative to one another.

[0042] Out of Fig. 5 It can be seen that the second coupling element 56 has a guide slot 58 with a first guide slot region 60 and a second guide slot region 62, wherein the guide slot regions 60 and 62 are connected to one another or merge into one another. A slide 64 engages in the guide slot 58 and is displaceable relative to the housing 14, in particular along the direction of movement. If the coupling element 58 is rotated about the second coupling element rotation axis relative to the housing 14 while the slide 64 (still) engages in the first guide slot region 60, then, for example, a displacement of the slide 64 relative to the housing 14 is prevented, in particular because, for example, the first guide slot region 60 has such a radius or lies or runs on such a circle whose center point lies on the second coupling element rotation axis.However, if the slider 64 comes into the second guide slot region 62, so that, for example, the second coupling element 56 is rotated about the second coupling element rotation axis relative to the housing 14 while the slider 64 engages in the second guide slot region 62, the slider 64 is displaced relative to the housing 14, in particular along the direction of movement, by means of the second guide slot region 62. For this purpose, for example, the slider 64 or a partial region of the slider 64 engaging in the guide slot 58 slides along the wall regions of the second coupling element 56 delimiting the second guide slot region 62 in such a way that, as the second coupling element 56 is rotated about the second coupling element rotation axis relative to the housing 14, the slider 64 is displaced, in particular in a direction of movement, relative to the housing 14.

[0043] Out of Fig. 6 and 7It can be seen that the slide 64 is connected to the bearing sleeve 44, so that the bearing sleeve 44 can be displaced with the slide 64, in particular along the direction of movement relative to the housing 14. If the slide 64 is displaced, in particular along the direction of movement relative to the housing 14, the bearing sleeve 44 is displaced with the slide 64, so that the bearing sleeve 44 is displaced along the bearing area 42. As a result, the guide flap 24 is pivoted relative to the housing 14. For example, starting from the Fig. 2 shown second pivot position of the guide flap 24, the slide 64 and with it the bearing sleeve 44 are displaced in the aforementioned first direction relative to the housing 14, the guide flap 24 is thereby moved from the second pivot position into the Fig. 3 shown first pivot position relative to the housing 14. For example, if the slide 64 and with it the bearing sleeve 44 are pivoted from the position shown in Fig. 3 shown, first pivoting position of the guide flap 24 in the second direction relative to the housing 14, the guide flap 24 is thereby moved from the position shown in Fig. 3 shown, first swivel position into the Fig. 4 shown second pivot position relative to the housing 14.

[0044] The coupling elements 54 and 56 are coupled to one another, in particular in a torque-transmitting manner, such that by rotating the coupling element 54 about the coupling element rotation axis relative to the housing 14, the second coupling element 56 is rotatable or is rotated about the second coupling element rotation axis relative to the housing 14. For this purpose, the coupling elements 54 and 56 have toothings 66 and 68, which are designed as external toothings and mesh with one another, thus engaging with one another. The aforementioned, in particular electrically operable, actuator is coupled or can be coupled to the coupling element 54, for example, so that the first coupling element 54 can be driven by means of the actuator and can thus be rotated about the first coupling element rotation axis relative to the housing 14.If the coupling element 54 is rotated about the first coupling element rotation axis relative to the housing 14 by means of the actuator, the coupling element 56 is driven by the coupling element 54 due to the described coupling of the coupling element 54 with the coupling element 56 and is thereby rotated about the second coupling element rotation axis relative to the housing 14. As long as the slide 64 only engages in the guide slot area 60 with respect to the guide slot areas 60 and 62, the guide flap 24 does not pivot while the coupling elements 54 and 56 are rotated.If, for example, the actuator drives the coupling element 54 in such a way that the coupling element 54 and thus the coupling element 56 are rotated, in particular simultaneously, such that the slide 64 only engages in the guide slotted area 60 with respect to the guide slotted areas 60, 62, then otherwise both coupling elements 54, 56 are rotated simultaneously, and by rotating the coupling element 54 the flow body 20 is displaced relative to the housing 14, but pivoting of the guide flap 24 does not occur. It is thus possible, for example, to displace the flow body 20, which is initially in a first position, in the second direction and thereby into a second position, and thus to adjust the flow cross section Q from a first value to a second value which is larger than the first value, while movement of the guide flap 24 relative to the housing 14 does not occur.If, starting from the second position of the flow body 20, the coupling elements 54, 56 are rotated further such that the slide 64 moves from the guide slot area 60 into the guide slot area 62 and is moved along the guide slot area 62, the guide flap 24 can thereby be pivoted relative to the housing 14, in particular while movement of the flow body 20 relative to the housing 14 is prevented. If, for example, the coupling elements 54 and 56 are rotated relative to the housing 14, while the slide 64 only engages in the guide slot area 62 with respect to the guide slot areas 60 and 62, the guide flap 24 can be pivoted relative to the housing 14 about the aforementioned pivot axis by means of the actuator, while movement of the flow body 20 relative to the housing 14 is prevented.In particular, it can be seen that the respective toothing 66, 68 does not extend completely around the respective coupling element 54, 56 in the circumferential direction running around the respective coupling element rotation axis, but only partially around the respective coupling element 54, 56.

[0045] The pivot axis about which the guide flap 24 can be pivoted relative to the housing 14 is made of Fig. 7 recognizable and labeled S there.

[0046] Out of Fig. 8 and 9It can be seen that the housing part 50 has a toothing 70 designed as an external toothing, which is formed, for example, on an axial end face of the housing part 50, in particular in the manner of a toothing of a ring gear. Also provided is a gear 72 which is rotatable about a gear axis of rotation relative to the housing 14. The gear 72 has, in particular in the manner of a pinion, a gear toothing corresponding to the toothing 70, which engages with the corresponding toothing 70. The gear axis of rotation runs perpendicular to the axis of rotation D. If the gear 72 is now rotated about the gear axis of rotation relative to the housing 14, this rotation of the gear 72 is converted by means of the gear toothing and the toothing 70 into a rotation of the housing part 50 about the axis of rotation D relative to the housing part 48.In this case, for example, a second actuator is provided in addition to the aforementioned actuator, which is, for example, electrically operated. By means of the second actuator, the gear 72 can be driven and thereby rotated about the gear axis of rotation relative to the housing 14, whereby the housing part 50 is driven by the gear 72 and the axis of rotation D is rotated relative to the housing part 48. As a result, the guide flap 24 is rotated about the axis of rotation D relative to the housing part 48. It can thus be seen that the housing part 50 and with it the guide flap 24 can be rotated about the axis of rotation D relative to the housing part 48 without pivoting the guide flap 24 about the pivot axis S relative to the housing 14 and vice versa, so that the rotation of the guide flap 24 about the axis of rotation D and the pivoting of the guide flap 24 about the pivot axis S can take place, in particular completely, independently of one another.This allows the airflow direction to be adjusted to meet specific needs. Fig. 9 The coupling of the guide flap 24 with the housing part 50 is particularly clearly visible. The pivot axis S is also visible.

Claims

1. Air vent (10) for ventilating an interior (12) of a motor vehicle, comprising a housing (14) through which air can flow in order to ventilate the interior (12), a flow body (20) arranged in the housing (14) and around which air can flow, and a guide flap (24) arranged upstream of the flow body (20) and movable relative to the housing (14) and relative to the flow body (20), by means of which guide flap an outflow direction (26) in which the air flows out of the air vent (10) is adjustable, the flow body (20) being translationally movable relative to the housing (14), as a result of which a flow cross-section (Q) of the air vent (10) through which air can flow and which is arranged in the housing (14) is adjustable, the air being able to flow through the housing (14) in a flow direction (34), at least upstream of the guide flap (24), in order to ventilate the interior (12), characterized in that the guide flap (24) is rotatable, relative to at least one housing part (48) of the housing (14) and relative to the flow body (20), about an axis of rotation (D) coinciding with the flow direction (34) in order to thereby adjust the outflow direction (26).

2. Air vent (10) according to claim 1, characterized in that the flow body (20) is translationally movable back and forth along the flow direction (34) relative to the housing (14), as a result of which the flow cross-section (Q) is adjustable.

3. Air vent (10) according to claim 1 or claim 2, characterized in that the outer circumference of the flow body (20) is rotationally symmetrical at least over most of its length running along the flow direction (34).

4. Air vent (10) according to any of claims 1 to 3, characterized in that the guide flap (24) is pivotable, relative to the housing (14) and relative to the flow body (20), about a pivot axis (S) which runs perpendicularly to the flow direction (34), in order to thereby adjust the outflow direction (26).

5. Air vent (10) according to claim 1, characterized in that the housing (14) comprises the at least one housing part (48) as a first housing part (48) and a second housing part (50) coupled to the guide flap (24), which second housing part is rotatable, together with the guide flap (24), relative to the first housing part (48) and relative to the flow body (20), about the axis of rotation (D).

6. Air vent (10) according to any of the preceding claims, characterized in that a coupling device (52) is provided, by means of which the flow body (20) and the guide flap (24) are coupled to one another such that both the flow body (20) and the guide flap (24) are movable by means of exactly one actuator.

7. Air vent (10) according to any of the preceding claims, characterized in that the inner circumference of the housing (14) is rotationally symmetrical at least in a length region, the flow body (20) being arranged in the length region.

8. Motor vehicle comprising at least one air vent (10) according to any of the preceding claims.