Air control system for a motor vehicle, in particular for a car, and motor vehicle having such an air control system

Abstract

The invention relates to an air control system (10) for a motor vehicle, comprising at least one air opening (12), through which air can flow and via which at least one heat exchanger can be supplied with the air, and comprising at least one lamella (20a) that can be moved between at least one closing position, which covers at least one sub-region of the air opening (12), thereby closing same, and at least one open position, which releases at least the sub-region of the air opening (12). A plurality of mutually spaced fins (24b) which follow one another in the direction of longitudinal extension (22a) of the lamella (20a) are provided on the lamella (20a), said fins protruding from the lamella (20a) in a direction (28) which runs diagonally or perpendicularly to the direction of longitudinal extension (22a) of the lamella (20a) and being arranged so as to overlap with respective air opening (12) sections adjoining the lamella (20a) in the open position.

Description

[0001] Air control system for a motor vehicle, in particular for a motor vehicle, and motor vehicle with such an air control system

[0002] The invention relates to an air control system for a motor vehicle, in particular for a motor vehicle, according to the preamble of patent claim 1. Furthermore, the invention relates to a motor vehicle, in particular a motor vehicle, with at least one such air control system.

[0003] DE 102013219209 A1 discloses an air passage device for controlling an air flow through an air passage opening of a motor vehicle. At least one pivoting body is provided which is assigned to the air passage opening and which can be pivoted between a closed position in which a region of the air passage opening assigned to the pivoting body is closed, and at least one open position in which an air flow can flow through the region of the air passage opening assigned to the pivoting body. US 2020 / 0 307 371 A1 discloses an air flow regulating device for an air intake. From the publication DUTTA, Nilabza [et al.]: Active grille shutters control and benefits in medium to large SUV: a system engineering approach. In: [WCX Digital summit]: [June 16-18, 2020 & on-demand], [Warrendale, PA]: SAE International, 2020. Chap. 2020-01-0945 (14 p.) an active grille closure is known.DE 102 28422 A1 discloses a blind for closing openings. DE 10 2006 001 797 A1 discloses a device for regulating an air flow for engine cooling.

[0004] The object of the present invention is to provide a particularly advantageous air control system and a motor vehicle with a particularly advantageous air control system.

[0005] This object is achieved by an air control system having the features of patent claim 1 and by a motor vehicle having the features of patent claim 5. Advantageous embodiments with expedient further developments of the invention are specified in the remaining claims.

[0006] A first aspect of the invention relates to an air control system for a motor vehicle, also simply referred to as a vehicle. This means that the motor vehicle, which is preferably designed as a motor vehicle, in particular as a passenger car, and also simply referred to as a vehicle, has the air control system in its fully manufactured state. As will be explained in more detail below, the air control system is a device, also designed as an air passage device or air passage means, by means of which an air flow can be adjusted, i.e. varied. This means that the air control system can adjust the air flow, i.e. vary it, although the air control system does not necessarily have to be able to regulate the air flow. The air control system has at least one air opening through which air can flow.For example, the air opening is delimited by a base element of the air control system, which is in particular inherently rigid and preferably designed as a solid body, for example in such a way that the air opening is delimited along its circumferential direction, in particular completely circumferentially, by the base element. The base element can be integral, i.e. formed from a single piece, or the base element can be designed in several parts, so that the base element can, for example, have several base parts that are formed separately from one another and connected to one another. For example, the air flowing through the air opening forms the aforementioned air flow, so that, for example, the air flow can flow through the air opening. In particular, the air opening is a through-opening, wherein the air opening can be flowed through, for example, along a flow direction also referred to as the through-direction, i.e., the air flow.For example, the airflow direction in the installed position of the air control system runs in the longitudinal direction of the motor vehicle, so that, for example, the airflow direction in the installed position of the air control system runs parallel to the vehicle's longitudinal direction. The vehicle's longitudinal direction is also referred to as the x-direction or x. The air control system assumes its installed position in the fully manufactured state of the motor vehicle equipped with the air control system.

[0007] At least one heat exchanger can be supplied with air via the air opening. In other words, the motor vehicle, for example, in its fully manufactured state, has the heat exchanger, which is arranged, for example, downstream of the air flowing through the air opening and thus behind the air opening. The flow direction of the air flowing through the air opening coincides with the throughflow direction. The air opening is also referred to as the throughflow opening.

[0008] Thus, for example, the air flowing through the air opening can flow towards and / or around and / or through the heat exchanger, whereby the heat exchanger can be or is supplied with the air flowing through the air opening.

[0009] For example, a fluid, in particular a liquid one, can flow through the heat exchanger. Heat can be transferred between the fluid and the air via the heat exchanger, for example in such a way that heat can be transferred from the fluid to the air via the heat exchanger. This cools the fluid, so that the heat exchanger is a cooler or can be operated as a cooler. The air flowing through the air opening is thus used, for example, as cooling air, so that the air is also referred to or designed, for example, as a cooling air opening. For example, at least one component of the motor vehicle, which is provided in particular in addition to the heat exchanger, can be cooled by means of the fluid. The component is or comprises, for example, a drive motor for driving the motor vehicle.

[0010] The air control system also comprises a preferably inherently rigid, i.e. dimensionally stable and thus preferably designed as a solid slat as the first slat, which is movable, in particular relative to the base element, between at least one closed position covering and thus closing at least a partial area of ​​the air opening, thus fluidically blocking it, and at least one open position exposing at least the partial area of ​​the air opening. This means that in the closed position at least the partial area of ​​the air opening is closed by the slat, so that in the closed position no air can (or no longer can) flow through the partial area. In the open position, the slat exposes at least the partial area of ​​the air opening, so that in the open position of the slat air and thus the air flow can flow through the partial area.The air flow can be adjusted, in particular by successive, alternating movement of the slat between the closed position and the open position. For example, in the closed position, the heat exchanger can be supplied with a lower mass and / or volume flow of air than in the open position, or in or through the closed position, a supply of air to the heat exchanger via the air opening can be avoided, since, for example, in or through the closed position the air opening can be blocked, in particular completely. In this way, a supply of air to the heat exchanger via the air opening can be adjusted as required. In this way, for example, in or through the closed position, particularly advantageous aerodynamics of the motor vehicle can be achieved, so that the motor vehicle can be driven efficiently.In or through the open position, a supply of the heat exchanger with a sufficient quantity, that is, with a sufficient volume and / or mass flow of air via the air opening can be ensured, so that a particularly advantageous cooling of the fluid and thus of the component can be ensured.

[0011] In order to be able to realize a particularly wide range of functions of the air control system in a particularly advantageous manner, the invention provides that a plurality of fins are provided on the slat as first fins, which are spaced apart from one another in the longitudinal direction of the slat, are preferably inherently rigid and thus dimensionally stable, and are preferably designed as solid bodies. The slat extends elongatedly along its preferably straight, i.e., straight, longitudinal direction of extent, so that, for example, the slat itself, i.e., viewed on its own, has a larger dimension along its longitudinal direction of extent, i.e., is longer than in further directions of extent of the slat, which are perpendicular to one another and each perpendicular to the longitudinal direction of extent.The respective fin is understood to be a respective body, preferably inherently rigid and thus dimensionally stable, and preferably designed as a solid body. The fins protrude from the lamella in a direction running obliquely or preferably perpendicular to the longitudinal direction of the lamella. For example, the said direction is one of the previously mentioned directions of extension. In particular, it is preferably provided that the fins protrude from the lamella in the same direction, running obliquely or preferably perpendicular to the longitudinal direction of the lamella. It is conceivable that the fins are formed separately from one another and separately from the lamella and are connected to the lamella.However, it has proven particularly advantageous if the lamella and the fins are formed integrally with one another, i.e., formed from a single piece. Preferably, the lamella and the fins are formed by a single, integral body, i.e., formed from a single piece and thus manufactured integrally. Preferably, the lamella and the fins are formed as a monoblock or are formed by a monoblock. For example, the lamella and the fins are formed from a plastic.

[0012] Preferably, the lamella and the fins are manufactured by injection molding, in particular by plastic injection molding. Preferably, the lamella is not elastically deformable, and preferably, the respective fin is not elastically deformable.

[0013] When the slat is in the open position, the fins are arranged to overlap with the respective parts of the air opening that adjoin the slat in the open position, in particular such that when the slat is in the open position, the fins protrude into the air opening, and thus into the respective parts of the air opening. Since the fins are provided on the slat, the fins can be moved with the slat, in particular relative to the base element, between the open position and the closed position. The slat and thus the fins can be pivoted about a first pivot axis, in particular relative to the base element, between the open position and the closed position. It is conceivable that, when the air control system is in the installed position, the first pivot axis runs in the transverse direction of the motor vehicle, and thus parallel to the transverse direction of the motor vehicle, with the transverse direction of the vehicle also being referred to as the y-direction or y.In particular, it is conceivable that the first pivot axis coincides with the longitudinal direction of the slat. Since the fins are spaced apart from one another in the longitudinal direction of the slat, air can flow between the fins and thus through the air opening when the slat is in the open position. In other words, in the open position of the slat, the fins allow air to flow through the air opening because the fins are arranged in overlapping relationship with the parts of the air opening, but in a

[0014] The fins are spaced apart from one another in the longitudinal direction of the fin, allowing air to pass between them. Thus, if the motor vehicle moves forward while the fin is in the open position, air flowing toward the motor vehicle, particularly its front, can flow between the fins (for example, the air control system being located at the front of the motor vehicle) and subsequently through the air opening, thus ensuring an advantageous supply of the heat exchanger with a sufficient amount of air.However, in the open position of the slat, the fins, because they protrude from the slat and are spaced apart from each other, form a net, a net structure, a grid, or a lattice structure. This means that, for example, dirt such as leaves that move towards the air opening during the aforementioned travel can be caught and retained by the fins, thus preventing them from flowing through the air opening and reaching the heat exchanger. Thus, for example, in the open position of the slat, the fins form a grid, also known as a protective or dirt grid, which can be used to prevent dirt or other objects from penetrating the air opening and reaching the heat exchanger when the slat is open.Since the fins are provided on the slat and can move with the slat, the grille is integrated into the slat or rather into the air control system. The air control system can therefore be used not only to regulate the air flow through the air opening, but also to prevent dirt and other objects from penetrating the air opening and reaching the heat exchanger, thus enabling a particularly wide range of functions to be achieved by the air control system in a particularly simple manner. The parts of the air opening are also referred to as the first parts. When reference is made to the parts above and below, this refers to the first parts of the air opening, unless otherwise stated.

[0015] The air opening is arranged, for example, in a front bumper of the motor vehicle. The invention makes it possible, for example, to avoid the need for an additional, separate grille in the bumper, thus creating a great deal of design freedom. Furthermore, the use of an additional, separate grille, which is thus designed as an additional part, before or after the air control system or the air opening, so that the number of parts and thus the costs and weight of the motor vehicle can be kept particularly low. Furthermore, it is possible to prevent the slat from colliding with an additional grille, thus ensuring particularly advantageous operation of the air control system. Since the fins are spaced apart from one another in the longitudinal direction of the slat, excessive blockage of the air opening can be avoided when the slat is in the open position.Particularly when the respective fin has a very small, i.e., small, cross-section, a large exposed area of ​​the air opening can be ensured when the fin is in the open position, thus ensuring that the heat exchanger is supplied with a sufficient amount of air. Since the fins are provided on the fin, the fin is used as a base support for the grille, so that the grille can be manufactured in a space-saving, weight-saving, and cost-effective manner. Overall, it can be seen that the fins or the grille, when the fin is in the open position, can hold back dirt and thus prevent it from penetrating the air opening. At the same time, an efficient and effective supply of air to the heat exchanger can be ensured, thus ensuring, for example, effective and efficient cooling of the fluid and thus of the component.Furthermore, it is possible, for example, for a person to particularly easily remove dirt retained by the fins. The background to the invention is in particular that grid structures on or in the bumper are undesirable for optical reasons. Without such a grid structure, however, dirt such as leaves can penetrate relatively unhindered into an air path through which air can flow and in particular penetrate the air opening and reach, for example, the heat exchanger, which can impair the efficiency of the heat exchanger with regard to the exchange of heat between the fluid and the air. These problems and disadvantages can now be avoided by the invention. On the one hand, an additional, possibly visually unfavorable grid can be dispensed with. On the other hand, dirt such as leaves can be caught, retained and prevented from penetrating the heat exchanger.

[0016] In order to be able to adjust the air flow as required on the one hand and to prevent dirt and other objects from penetrating the air opening particularly effectively and efficiently on the other, the invention provides that the air control system has a second lamella, which is preferably inherently rigid and thus preferably designed as a solid body and is provided in addition to the lamella, which second lamella can be pivoted about a second pivot axis spaced from the first pivot axis between at least one second closed position covering and thereby closing, and thus fluidically blocking, at least a second partial area of ​​the air opening and at least one second open position exposing at least the second partial area of ​​the air opening. The pivot axes run parallel to one another, wherein the pivot axes are spaced from one another.The previous and following statements regarding the first slat can easily be applied to the second slat and vice versa.

[0017] In this case, a plurality of second fins are provided on the second slat, which are spaced apart from one another and are arranged one after the other in the longitudinal direction of the second slat, and which are preferably inherently rigid and / or preferably designed as solid bodies. These second fins protrude from the second slat in a second direction running obliquely or perpendicular to the longitudinal direction of the second slat. The longitudinal direction of the second slat is also referred to as the second longitudinal direction. The longitudinal directions run parallel to one another, wherein the longitudinal directions are spaced apart from one another. In the second open position of the second slat, the second fins are arranged in overlap with respective second parts of the air opening which adjoin the second slat in the second open position. For example, the second partial region adjoins the first partial region, in particular directly.Furthermore, it is preferably provided that the second parts are arranged, in particular, in pairs next to one another and next to the first parts. For example, the first parts are arranged, in particular, in pairs next to one another.

[0018] The longitudinal extensions of the slats run parallel to each other and are spaced apart. This allows the airflow to be adjusted particularly effectively, and dirt such as leaves can be particularly well retained and trapped, thus preventing it from penetrating the air opening.

[0019] In order to be able to retain dirt particularly efficiently and thus prevent it from penetrating the air opening, the invention provides that in the open positions of the slats the second fins are arranged offset from the first fins in the longitudinal direction of the respective slat.

[0020] It is also provided that in the first open position the first fins protrude from the first slat towards the second slat, so that in the first open position the first direction points from the first slat towards the second slat. Furthermore, it is provided that in the second open position the second fins protrude from the second slat towards the first slat, so that in the second open position the second direction runs from the second slat behind the first slat. As a result, the slats and the fins can form a particularly effective and efficient grid or grid-like structure in the open positions, whereby dirt such as leaves can be effectively and efficiently retained.

[0021] In the open positions of the slats, the slats are arranged at a distance from one another that runs perpendicular to the respective longitudinal direction of the respective slat. The distance thus runs in the first direction or in the second direction. In the first open position, the respective first fin, which in the first open position projects from the first slat towards the second slat and thus in the first direction, has a respective first outer dimension that runs perpendicular to the respective longitudinal direction of the respective slat and from the first slat towards the second slat and thus in the first direction, which is also referred to as the first height.In the second open position, the respective second fin, which in the second open position projects from the second slat towards the first slat and thus in the second direction, has a respective second outer dimension, which runs perpendicular to the respective longitudinal direction of the respective slat and from the second slat towards the first slat and thus in the second direction and is also referred to as the second height. In particular, it is provided that the respective first fin has a respective first free end, opposite the first slat, at which the respective first fin ends. Furthermore, it is preferably provided that the respective second fin has a respective second free end, opposite the second slat, at which the respective second fin ends.For example, in the first open position of the first slat, the respective first fin extends continuously from the first slat in the first direction to the respective first free end. Furthermore, in the second open position of the second slat, the respective second fin extends continuously from the second slat in the second direction to the respective second free end.

[0022] It is further provided that the first outer dimension and the second outer dimension in total are greater than 50%, in particular greater than 60% and most particularly greater than 70% of the distance. In other words, the first height and the second height in total form a total height which is greater than 50%, in particular greater than 60% and most particularly greater than 70% of the distance. Very preferably, the total height is greater than 80%, in particular greater than 90%, most particularly greater than 95% and most preferably greater than 98% of the distance. On the one hand, this allows dirt such as leaves to be effectively and efficiently retained and prevented from penetrating the air opening. On the other hand, when the fins are in the open position, an advantageous supply of the heat exchanger with a sufficient amount of air via the air opening can be ensured.

[0023] In an advantageous embodiment of the invention, each fin extends in a respective plane perpendicular to the longitudinal direction of the fin. This ensures advantageous spacing of the fins along the longitudinal direction of the fin, ensuring that the heat exchanger is supplied with a sufficiently large amount of air in the open position. Furthermore, the fins and the fin can advantageously capture and retain dirt.

[0024] Another embodiment is characterized by the fact that, when the air control system is installed, the longitudinal extension of the slat runs in the transverse direction of the vehicle. This allows the airflow to be advantageously adjusted, and the fins, particularly in conjunction with the slat, can advantageously form the grille, thus ensuring particularly effective dirt retention.

[0025] In a further, particularly advantageous embodiment of the invention, the respective fin protrudes upwards or downwards from the slat in the vertical direction of the vehicle when the air control system is installed and the slat is in the open position. This allows the fins and the slat to form the grille particularly advantageously, especially in the open position, allowing dirt to be retained particularly effectively.

[0026] The slat is also called the first slat, the fins are also called the first fins, the longitudinal direction is also called the first longitudinal direction, the open position is also called the first open position, and the closed position is also called the first closed position. Furthermore, the aforementioned direction is also called the first direction.

[0027] A second aspect of the invention relates to a motor vehicle, also referred to simply as a vehicle and preferably designed as a motor vehicle, in particular a passenger car, which has at least one air control system 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.

[0028] Further advantages, features, and details of the invention will become apparent from the following description of a preferred embodiment and from the drawings. 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 alone in the figures, can be used not only in the respective specified combinations, but also in other combinations or on their own, without departing from the scope of the invention.

[0029] The drawing shows:

[0030] Fig. 1 is a schematic front view of an air control system of a motor vehicle; Fig. 2 is a partial schematic and sectional side view of the air control system;

[0031] Fig. 3 shows a partial schematic perspective view of the air control system; and

[0032] Fig. 4 shows a further schematic and sectional side view of the air control system.

[0033] In the figures, identical or functionally identical elements are provided with the same reference symbols.

[0034] Fig. 1 shows a schematic front view of an air control system 10 for a motor vehicle, also simply referred to as a vehicle. This means that the motor vehicle, preferably designed as a motor vehicle, in particular a passenger car, has the air control system 10 in its fully manufactured state. The air control system 10 assumes the installation position shown in the figures in the fully manufactured state of the motor vehicle having the air control system 10, wherein, for example, the air control system 10 is arranged at the front of the motor vehicle. In particular, the air control system 10 is arranged on, in particular in, a front bumper of the motor vehicle.

[0035] The air control system 10 has at least one air opening 12 through which air, and thus an air flow formed by the air, can flow and is also referred to as a through-opening or designed as a through-opening, which is also referred to as a through-flow opening. For example, the air control system 10 comprises a base element 14 that is in particular inherently rigid and preferably designed as a solid body, wherein, for example, the air opening 12 is delimited, in particular completely circumferentially, by the base element 14 along its circumferential direction illustrated in Fig. 1 by a double arrow 16. At least one heat exchanger of the motor vehicle can be supplied with the air flowing through the air opening 12 via the air opening 12. This is to be understood in particular that the air opening 12 and the heat exchanger are arranged in an air path through which the air flowing through the air opening 12 can flow and via which the heat exchanger can be supplied with air.In the flow direction of the air flowing through the flow opening (air opening 12) and the air path, for example, the heat exchanger is arranged downstream of the air opening 12.

[0036] The air control system 10 has a plurality of successive slats 20a-c spaced from one another along a spacing direction indicated by a double arrow 18. Each slat 20a-CMOS is inherently rigid and formed as a solid body. In particular, for example, each slat 20a-c is arranged in the air opening 20. Each slat 20a-c is movable between at least one respective closed position, which covers and thereby closes at least a respective partial area of ​​the air opening 12 and thus fluidically blocks it, and at least one respective open position, which exposes at least the respective partial area of ​​the air opening 12. In the present case, each slat 20a-c is pivotable about a respective pivot axis 22a-c relative to the base element 14 between the respective closed position and the respective open position.It can be seen that the pivot axes 22a-c run parallel to one another in pairs and are spaced apart from one another in pairs. The respective pivot axis 22a-c runs perpendicular to the spacing direction (double arrow 18). In addition, the respective slat 20a-c has a respective longitudinal extension direction which coincides with the respective pivot axis 22a-c and thus runs perpendicular to the spacing direction. Thus, the longitudinal extension directions run parallel to one another in pairs, and the longitudinal extension directions are spaced apart from one another in pairs, in particular along the spacing direction illustrated by the double arrow 18. In the closed positions of the slats 20a-c, for example, the air opening 12 is fluidically blocked at least predominantly, i.e. at least more than half or completely, by the slats 20a-c, so that no air can flow through the air opening 12.In the open positions, the slats 20a-c expose the air opening 12, ensuring an advantageous supply of the heat exchanger with the air flowing through the air opening 12. Thus, by moving the slats 20a-c between the open and closed positions, the air flow can be adjusted, i.e., varied. The circumferential direction of the air opening 12, illustrated by the double arrow 16, runs, for example, in a plane in which at least one of the pivot axes 22a-c runs.

[0037] In order to be able to realize a particularly broad range of functions of the air control system 10, a plurality of fins 24a and 24b are provided on the respective slat 20a-c, which are inherently rigid and designed as solid bodies. The respective fins 24a and 24b provided on the respective slat 20a-c are spaced apart from one another and arranged consecutively in the longitudinal direction of the respective slat 20a-c, on which the respective fins 24a and 24b are provided, in this case such that the fins 24a are arranged at a respective first distance A1 from one another in the longitudinal direction of the respective slat 20a-c, on which the fins 24a are provided. In addition, the respective fins 24b are arranged at a respective second distance A2 from one another in the longitudinal direction of the respective lamella 20a-c on which the respective fins 24b are provided.In this case, it is preferably provided that the distances A1 are equal, so that the fins 24a are equally spaced from one another in pairs in the longitudinal direction of the respective slat 20a-c. Furthermore, the distances A2 are preferably equal, so that the fins 24b are preferably equally spaced from one another in pairs in the longitudinal direction of the respective slat 20a-c, on which the respective fins 24b are provided. Furthermore, it is provided that the fins 24a and 24b are arranged at the same height in the longitudinal direction of the respective slat 20a-c, on which the fins 24a and 24b are provided, so that a respective one of the fins 24a is arranged at the same height as a respective one of the fins 24b in the longitudinal direction of the respective slat 20a-c, on which the fins 24a and 24b are provided.However, it is provided that the fins 24a and 24b provided on the slat 20b are arranged offset in the longitudinal direction of the respective slat 20a-c with respect to the fins 24a and 24b provided on the slat 20a and offset with respect to the fins 24a and 24b provided on the slat 20c.

[0038] The respective fin 24a protrudes in a first direction from the respective slat 20a-c on which the respective fin 24a is provided, and the respective fin 24b protrudes in a second direction from the respective slat 20a-c on which the respective fin 24b is provided. The first direction is illustrated by an arrow 26, and the second direction is illustrated by an arrow 28. It can be seen that the second direction is opposite to the first direction and vice versa. Furthermore, it can be seen that the first direction and the second direction each run perpendicular to the longitudinal direction of the respective slat 20a-c on which the fins 24a and 24b are provided.

[0039] In the open position of the respective slat 20a-c, the respective fins 24a and 24b are arranged in overlap with respective parts of the air opening 12 which, in the open position of the respective slat 20a-c, adjoin the respective slat 20a-c, on which the respective fins 24a and 24b are provided. As a result, in the open positions of the slats 20a-c, the fins 24a and 24b form a net- or grid-like structure, thus a grille which is designed or functions, for example, as a protective or dirt grille. The grille, i.e. the fins 24a and 24b, can, in the open positions of the slats 20a-c, particularly in interaction with the slats 20a-c, catch and retain dirt such as leaves and thereby prevent it from penetrating the air opening 12.

[0040] In the exemplary embodiment shown in the figures, the respective fins 24a and 24b extend in a respective plane that runs perpendicular to the respective longitudinal extension direction of the respective slats 20a-c. In the exemplary embodiment shown in the figures, in the installed position of the air control system 10, the respective longitudinal extension direction of the respective slats 20a-c runs in the vehicle's transverse direction, thus parallel to the vehicle's transverse direction.

[0041] It can be seen that in the installed position of the air control system 10 and in the open positions of the slats 20a-c, the fins 24a protrude upwards in the vertical direction of the vehicle and in the first direction from the respective slat 20a-c, so that in the installed position of the air control system 10 and in the open positions of the slats 20a-c, the first direction illustrated by arrow 26 runs upwards in the vertical direction of the motor vehicle. In the installed position of the air control system 10 and in the open positions of the slats 20a-c, the respective fins 24b protrude downwards in the vertical direction of the vehicle from the respective slat 20a-c, so that in the installed position of the air control system 10 and in the open positions of the slats 20a-c, the second direction illustrated by arrow 28 runs downwards in the vertical direction of the vehicle.Thus, in the open positions of the slats 20a-c, the fins 24b provided on the slat 20a extend away from the slat 20a and toward the slat 20b, and the fins 24a provided on the slat 20b extend away from the slat 20b and toward the slat 20a. In the open positions of the slats 20a-c, the fins 24b provided on the slat 20b extend away from the slat 20b and toward the slat 20c, and the fins 24a provided on the slat 20c extend away from the slat 20c and toward the slat 20b. The fins 24a provided on the slat 20a extend away from the slat 20a and also away from the slats 20b and 20c in the open positions of the slats 20a-c, and the fins 24b provided on the slat 20c extend away from the slat 20c and away from the slats 20a and 20b in the open positions of the slats 20a-c.In the open positions of the slats 20a and 20b, the slats 20a and 20b are arranged at a third distance A3 from one another, running perpendicular to the respective longitudinal direction of the respective slat 20a, b, so that the third distance A3 between the slats 20a and 20b runs in the first direction or the second direction. Furthermore, in the open positions of the slats 20b and 20c, the slats 20b and 20c are arranged at a fourth distance A4 from one another, running perpendicular to the respective longitudinal direction of the respective slat 20b, c, wherein, for example, the distances A3 and A4 are equal.In the respective open position of the respective slat 20a-c, the respective fin 24a has a respective first outer dimension running perpendicular to the respective longitudinal extension direction of the respective slat 20a-c, which is also referred to as the first height and runs in the first direction in the respective open position of the respective slat 20a-c. In the respective open position of the respective slat 20a-c, the respective fin 24b has a respective second outer dimension running perpendicular to the respective longitudinal extension direction of the respective slat 20a-c, which is also referred to as the second height and runs in the second direction in the open position of the respective slat 20a-c.In the open positions of the slats 20a and 20b, for example, the respective second height of the respective fin 24b provided on the slat 20a and the respective first height of the respective fin 24a provided on the slat 20b result in a first total height that is greater than 50%, in particular greater than 60%, and most particularly greater than 70%, of the third distance A3. In particular, the first total height is greater than 80%, in particular greater than 90%, and most particularly greater than 95%, and most particularly greater than 98%, of the distance A3. In the open positions of the slats 20b and 20c, the respective second height of the respective fin 24b provided on the slat 20b and the respective first height of the respective fin 24a provided on the slat 20c result in a second total height which is preferably greater than 50%, in particular greater than 60% and most particularly greater than 70% of the distance A4.In particular, the second total height is preferably greater than 80%, in particular greater than 90%, very particularly greater than 95%, and very preferably greater than 98%, of the distance A4. For example, the respective fin 24a, b has a respective wall thickness running in the longitudinal direction of the respective slat 20a-c, which wall thickness is, for example, at most 2 mm and, for example, at least 1 mm, in particular at least 1.5 mm. For example, the distance A1 is greater than 30 mm and, for example, less than 40 mm, wherein, for example, the distance A1 is 35 mm. A distance designated A5 in Fig. 1 and running in the longitudinal direction of the slat 20b is, for example, 30 mm. Fig. 2 shows the air control system 10 in a schematic and sectional side view. Fins 24a and 24b provided on the slats 20a-c are particularly clearly visible in Fig. 2.

[0042] Fig. 3 shows a section of the air control system 10 in a schematic perspective view, wherein the slats 20a-c and the fins 24a and 24b provided thereon can be seen particularly well in Fig. 3. Finally, Fig. 4 shows a section of the air control system 10 in a schematic and sectional side view. Viewed in a plane spanned, for example, by the vehicle's longitudinal direction in the vehicle's vertical direction, in particular a sectional plane, the respective fin 24a, b is designed, for example, in an arc shape, in particular in the shape of a circular segment, on the outer circumference, for example in such a way that a radius of the respective fin 24a, b, which in particular forms the respective height, is, for example, half the respective distance A3 or A4. It is thus conceivable that the respective total height corresponds to the respective distance A3 or A4. In other words, it is conceivable that the first total height and the distance A3 are the same.Furthermore, it is conceivable that the second total height and the distance A4 are the same. In this regard, for example, in Fig. 4 the radius of the respective fin 24b provided on the slat 20a is denoted by R1, where, for example, R1 = A3 / 2 applies. Furthermore, for example, in Fig. 4 the respective radius of the respective fin 24b provided on the slat 20b is denoted by R2, where, for example, R2 = A4 / 2 applies. Thus, for example, it is conceivable that the respective second height of the respective fin 24b provided on the slat 20a is half the distance A3. Furthermore, for example, it is conceivable that the respective second height of the respective fin 24b provided on the slat 20b is half the distance A4.

Claims

Patent claims 1. An air control system (10) for a motor vehicle, comprising at least one air opening (12) through which air can flow, via which at least one heat exchanger can be supplied with air, comprising a first louvre (20a) which is pivotable about a first pivot axis (22a) between at least one closed position covering and thereby closing at least a partial area of ​​the air opening (12) and at least one open position exposing at least the partial area of ​​the air opening (12), and comprising a second louvre (20b) which is pivotable about a second pivot axis (22b) spaced from the first pivot axis (22a) and extending parallel to the first pivot axis (22a) between at least one second closed position covering and thereby closing at least a second partial area of ​​the air opening (12) and at least one second open position exposing at least the second partial area of ​​the air opening (12), characterized in that: - a plurality of first fins (24b) are provided on the first slat (20a), which are spaced apart and follow one another in the longitudinal direction of the first slat (20a), which fins protrude from the first slat (20a) in a direction (28) extending obliquely or perpendicularly to the longitudinal direction of the first slat (20a) and, in the open position, are arranged in overlap with respective first parts of the air opening (12) which adjoin the first slat (20a) in the open position; - on the second lamella (20b) a plurality of second fins (24a) are provided which are spaced apart and follow one another in the longitudinal direction of the second lamella (20b), which second fins protrude from the second lamella (20b) in a second direction (26) extending obliquely or perpendicularly to the longitudinal direction of the second lamella (20b) and in the second open position are arranged in overlap with respective second parts of the air opening (12) adjoining the second slat (20b) in the second open position; - the longitudinal extension directions of the slats (20a, 20b) run parallel to one another; - in the open positions of the slats (20a, 20b), the second fins (24a) are arranged offset from the first fins (24b) in the longitudinal direction of the respective slat (20a, 20b); - in the first open position, the first fins (24b) protrude from the first slat (20a) towards the second slat (20b); - in the second open position, the second fins (24a) protrude from the second slat (20b) towards the first slat (20a); - in the open positions, the slats (20a, 20b) are arranged at a distance (A3) from one another which is perpendicular to the respective longitudinal direction of the respective slat (20a, 20b); - in the first open position, the respective first fin (24b) projecting from the first slat (20a) towards the second slat (20b) in the first open position has a respective first outer dimension extending perpendicular to the respective longitudinal direction of the respective slat (20a, 20b) and from the first slat (20a) towards the second slat (20b); - in the second open position, the respective second fin (24a) projecting from the second slat (20b) towards the first slat (20a) in the second open position has a respective second outer dimension extending perpendicular to the respective longitudinal direction of the respective slat (20a, 20b) and from the second slat (20b) towards the first slat (20a); and - the first outer dimension and the second outer dimension together are greater than 50% of the distance (A3).

2. Air control system (10) according to claim 1, characterized in that the respective first fin (24b) extends in a respective plane which is perpendicular to the longitudinal direction of the first slat (20a).

3. Air control system (10) according to claim 1 or 2, characterized in that in the installed position of the air control system (10), the longitudinal extension direction of the first slat (20a) runs in the transverse direction of the vehicle.

4. Air control system (10) according to one of the preceding claims, characterized in that in the installed position of the air control system (10) and in the open position of the first slat (20a), the respective first fin (24b) projects upwards or downwards from the first slat (20a) in the vertical direction of the vehicle.

5. Motor vehicle, with at least one air control system (10) according to one of the preceding claims.

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