Air control system for a motor vehicle, particularly a motor vehicle, and a motor vehicle equipped with such an air control system

Abstract

To provide an advantageous air control system and a motor vehicle equipped with the same. [Solution] The present 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 supply air to at least one heat exchanger, and a rotatable first thin plate (20a) that can move between at least one closed position that covers and thereby closes at least one partial area of ​​the air opening (12) and at least one open position that opens at least said partial area of ​​the air opening (12), the thin plate (20a) having a plurality of spaced-apart fins (24b) that are continuous in the longitudinal extension direction (22a) of the thin plate (20a), the plurality of fins protruding from the thin plate (20a) in a direction (28) that is oblique or perpendicular to the longitudinal extension direction (22a) of the thin plate (20a) and that are arranged so that in the open position they overlap respective portions of the air opening (12) adjacent to the thin plate (20a) in the open position.

Description

[Technical Field]

[0001] The present invention relates to an air control system for a motor vehicle, in particular a motor vehicle, according to the preamble of claim 1. Furthermore, the invention relates to a motor vehicle, in particular a motor vehicle, comprising at least one such air control system. [Background technology]

[0002] From the following patent document 1, a ventilation device for controlling the airflow through a ventilation opening of a motor vehicle is known. At least one rotating body assigned to the ventilation opening is provided, which rotating body is rotatable between a closed position, in which the area of ​​the ventilation opening assigned to the rotating body is closed, and at least one open position, in which the airflow can flow through the area of ​​the ventilation opening assigned to the rotating body. From the following patent document 2, an airflow adjustment device for an air inlet is disclosed. From the following non-patent document 1, an active cooling grille shutter is known. From the following patent document 3, a blind for closing an opening is disclosed. From the following patent document 4, a device for adjusting the airflow for engine cooling is disclosed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] German Patent Application Publication No. 10 2013 219 209 A1 [Patent Document 2] US Patent Application Publication No. 2020 / 0 307 371 A1 [Patent Document 3] DE 102 28 422 A1 [Patent Document 4] German Patent Application Publication No. 10 2006 001 797 A1

[0004] [Non-Patent Document 1] PublicationsDUTTA,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.Kap.2020-01-0945(14S.) Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE INVENTION It is an object of the present invention to provide a particularly advantageous air control system and a motor vehicle equipped with a particularly advantageous air control system. [Means for solving the problem]

[0006] This problem is solved by an air control system having the features of claim 1 and by a motor vehicle having the features of claim 5. Advantageous embodiments, including expedient developments of the invention, are set forth in the further claims.

[0007] A first aspect of the present invention relates to an air control system for a motor vehicle, also referred to simply as a vehicle. This means that a motor vehicle, preferably designed as a motor vehicle, particularly as a passenger car, also referred to simply as a vehicle, has an air control system in its fully manufactured state. As explained in more detail below, an air control system is a device, also designed as a ventilation device or ventilation equipment, that can regulate, i.e., vary, an air flow. This means that the air control system can regulate, i.e., vary, an air flow, but it does not necessarily have to be able to control the air flow. The air control system has at least one air opening through which air can flow. For example, the air opening is defined by a base element of the air control system, which is particularly rigid and preferably formed as a solid body, for example, such that it is defined by the base element along its circumferential direction, particularly completely around its entire periphery. The base element can be formed in one piece, thus from a single part, or can be composed of multiple pieces, whereby the base element has, for example, multiple base parts that are formed separately and connected to each other. For example, air flowing through the air opening creates the aforementioned air flow, which, for example, allows the air flow to flow through the ventilation opening. In particular, the air openings are through-openings, through which air, and therefore the air stream, can flow, for example, along a through-flow direction, also called the through-flow direction. For example, the through-flow direction in the installed state of the air control system runs in the longitudinal direction of the vehicle (extends in the longitudinal direction of the vehicle), thereby for example, running parallel to the longitudinal direction of the vehicle. The longitudinal direction of the vehicle is also called the x-direction or is designated by x. The air control system assumes its installed state when the vehicle having the air control system is in its fully manufactured state.

[0008] Air can be supplied to at least one heat exchanger via the air opening. In other words, for example, a fully manufactured automobile has a heat exchanger located downstream in the flow direction of the air flowing through the air opening, i.e., behind the air opening. In this case, the flow direction of the air flowing through the air opening coincides with the through-flow direction. The air opening is also called a through-flow opening.

[0009] Thus, for example, air flowing through the air opening can flow toward and / or around and / or through a heat exchanger, thereby being able to be supplied to the heat exchanger. For example, a fluid, particularly a liquid, can flow through the heat exchanger. For example, heat can be transferred between the fluid and the air via the heat exchanger, e.g., heat can be transferred from the fluid to the air via the heat exchanger. This cools the fluid, and thus the heat exchanger functions or can operate as a cooler. Thus, the air flowing through the air opening can be used, for example, as cooling air, thereby being referred to or configured as a cooling air opening. For example, at least one component of the vehicle, particularly in addition to the heat exchanger, can be cooled by the fluid. The component can be, for example, a drive machine for driving the vehicle or includes a drive machine.

[0010] The air control system further comprises a first lamella, preferably inherently rigid, i.e., shape-stable, and therefore preferably formed as a solid, which can be moved, particularly relative to the base element, between at least one closed position in which it covers, thereby closing, and thus fluidically blocking, at least one partial region of the air opening, and at least one open position in which it opens at least said partial region of the air opening. This means that in the closed position, at least one partial region of the air opening is closed by the lamella, so that in the closed position, air can no longer pass through the partial region. In the open position, the lamella opens at least said partial region of the air opening, so that in the open position of the lamella, air, and therefore the air flow, can pass through the partial region. The air flow can be adjusted by moving the lamella, particularly continuously and alternately, between the closed and open positions. For example, in the closed position, the heat exchanger can be supplied with a lower mass flow rate and / or volume flow rate of air than in the open position, or the air opening can be blocked, particularly completely blocked, in the closed position, thereby preventing the supply of air to the heat exchanger via the air opening. The supply of air to the heat exchanger via the air opening can thus be adjusted as needed. Thus, for example, in the closed position, particularly favorable aerodynamics of the vehicle can be achieved, thereby enabling the vehicle to be driven efficiently. In the open position, the supply of a sufficient amount of air to the heat exchanger via the air opening, i.e., a sufficient volume flow rate and / or mass flow rate of air via the air opening, can be ensured, thereby ensuring particularly favorable cooling of the fluid and therefore the components.

[0011] To enable a particularly wide range of functions of the air control system to be realized in a particularly advantageous manner, the present invention provides a plurality of fins, as first fins, spaced apart from one another in the longitudinal extension direction of the sheet, which are preferably inherently rigid, therefore shape-stable, and preferably solidly formed. The sheet extends elongately along its preferably straight, i.e., linear, longitudinal extension direction, thereby, for example, having dimensions greater than, i.e., longer than, the sheet itself, i.e., viewed by itself, in other directions of extension of the sheet that run perpendicular to each other along its longitudinal extension direction and perpendicular to the longitudinal extension direction. Each fin can be understood as a respective body, preferably inherently rigid, therefore shape-stable, and preferably solidly formed. The fins protrude from the sheet in a direction that runs obliquely or preferably perpendicularly to the longitudinal extension direction of the sheet. For example, the aforementioned direction is one of the aforementioned extension directions. It is particularly preferred that the fins protrude from the sheet in the same, oblique, or preferably perpendicular direction to the longitudinal extension direction of the sheet. It is conceivable that the fins are formed separately from each other and from the lamina and then connected to the lamina. However, it has proven particularly advantageous if the lamina and the fins are formed in one piece, i.e., from a single part, whereby preferably the lamina and the fins are formed in one piece, thus formed from a single part, thus formed as an integrally manufactured, one-piece body, whereby preferably the lamina and the fins are formed as a monoblock or formed by a monoblock. For example, the lamina and the fins are made of plastic. Preferably, the lamina and the fins are produced by injection molding, in particular by plastic injection molding. Preferably, the lamina is not elastomerically deformable, and preferably neither are the respective fins.

[0012] In the open position of the lamella, the fins are arranged to overlap portions of the air openings adjacent to the lamella in the open position. In particular, in the open position of the lamella, the fins are arranged to protrude into the air openings, and thus into the respective portions of the air openings. Since the fins are provided on the lamella, they can move together with the lamella, in particular relative to the base element, between the open and closed positions. The lamella, and therefore the fins, can rotate between the open and closed positions about a first rotation axis, in particular relative to the base element. In the installed state of the air control system, it is conceivable that the first rotation axis runs in the transverse direction of the vehicle and thus parallel to the transverse direction of the vehicle, which is also called the y-direction or denoted y. In particular, it is conceivable that the first rotation axis coincides with the longitudinal extension direction of the lamella. Since the fins are spaced apart from each other in the longitudinal extension direction of the lamella, in the open position of the lamella, air can pass between the fins and thus through the air openings. In other words, in the open position of the lamellae, the fins are arranged so as to overlap, i.e., so as to overlap portions of the air openings, but are spaced apart from one another in the longitudinal direction of the lamellae, thereby allowing air to pass between them. Thus, when the vehicle moves forward with the lamellae in the open position, air flowing into the vehicle, particularly towards its front, passes between the fins and then flows through the air openings, thereby ensuring an advantageous supply of a sufficient amount of air to the heat exchanger, if, for example, the air control system is arranged at the front of the vehicle. However, in the open position of the lamellae, the fins protrude from the lamellae and are spaced apart from one another, so that the fins form a net, net structure, grid or lattice structure, whereby, for example, foreign objects (dirt), such as leaves, moving in the direction of the air openings during the aforementioned driving, are caught and held back by the fins, preventing them from reaching the heat exchanger through the air openings. The fins thus form, for example, in the open position of the lamella, a grid, also called a protective grid or anti-fouling grid, which makes it possible to prevent dirt or other objects from penetrating the air openings in the open position of the lamella and proceeding towards the heat exchanger. The fins are provided on the lamella and can move together with the lamella, so that the grid is integrated into the lamella or into the air control system.Thus, a particularly wide range of functions of the air control system can be realized in a particularly simple way, since the air control system can be used not only to regulate the airflow through the air openings, but also to prevent dirt and other objects from entering the air openings and reaching the heat exchanger. Each part of the air opening is also referred to as a first part. Above and below, when a part is mentioned, this can be understood as a first part of the air opening, unless otherwise specified.

[0013] The air openings are arranged, for example, in the front bumper of a motor vehicle. The present invention makes it possible to avoid the addition of a separate grille in the bumper, thereby creating greater design freedom. Furthermore, it is possible to avoid the use of an additional, separate, and therefore additionally designed grille in front of or behind the air control system or air opening, thereby keeping the number of parts, costs, and weight of the motor vehicle particularly low. Furthermore, it is possible to avoid the lamina colliding with the additional grille, thereby ensuring particularly advantageous operation of the air control system. Since the fins are spaced apart from one another in the longitudinal extension direction of the lamina, excessive blocking of the air openings in the open position of the lamina is avoided. In particular, if each fin has a very small cross-section, a large open area of ​​the air openings can be ensured in the open position of the lamina, thereby ensuring a sufficient supply of air to the heat exchanger. Since the fins are provided on the lamina, the lamina serves as a base support for the aforementioned grille, allowing the grille to be embodied in a space-saving, lightweight, and inexpensive manner. Overall, it can be seen that in the open position of the lamellae, the fins or grids trap dirt, thereby preventing it from entering the air openings. At the same time, an efficient and effective supply of air to the heat exchanger can be ensured, thereby ensuring, for example, effective and efficient cooling of the fluid and therefore the components. Furthermore, dirt trapped by the fins can be particularly easily removed from the fins, for example, by a single person. The background to the present invention is that grid structures on or in bumpers are undesirable, particularly for aesthetic reasons. However, without such grid structures, dirt such as leaves could be less likely to be impeded and enter the air passages through which air can flow, particularly into the air openings, and reach, for example, the heat exchanger, thereby potentially impairing the efficiency of the heat exchanger in terms of heat exchange between the fluid and the air. However, these problems and drawbacks can be avoided with the present invention. On the one hand, additional grids, which may be aesthetically undesirable in some cases, can be omitted. On the other hand, foreign objects (dirt), such as leaves, can be captured, trapped, and prevented from advancing toward the heat exchanger.

[0014] To enable, on the one hand, the air flow to be regulated as needed and, on the other hand, to prevent dirt and other objects from entering the air openings particularly effectively and efficiently, the present invention provides for the air control system to have a second lamella, preferably inherently rigid and therefore preferably formed as a solid body, provided in addition to the lamella. This second lamella is rotatable about a second rotation axis spaced apart from the first rotation axis, particularly relative to the base element, between at least one second closed position in which it covers and thereby closes, and thus fluidically blocks, at least one second partial area of ​​the air opening, and at least one second open position in which it opens at least one second partial area of ​​the air opening. The rotation axes run parallel to each other and are spaced apart from each other. The above and following descriptions regarding the first lamella also apply without problem to the second lamella, and vice versa.

[0015] In this case, the second lamella is provided with a plurality of spaced-apart, preferably rigid and / or solid, second fins extending continuously in the longitudinal direction of the second lamella, protruding from the second lamella in a second direction extending obliquely or perpendicularly to the longitudinal direction of the second lamella. The longitudinal direction of the second lamella is also referred to as the second longitudinal direction. The longitudinal directions extend parallel to each other and are spaced apart from each other. In the second open position of the second lamella, the second fins are arranged to overlap with respective second portions of the air openings adjacent to the second lamella in the second open position. For example, the second partial region is directly adjacent to the first partial region. Preferably, the second portions are arranged adjacent to each other in pairs and next to the first portions. For example, the first portions are arranged adjacent to each other in pairs.

[0016] The longitudinal extension of the lamellae runs parallel to one another and are spaced apart from one another, which allows for a particularly advantageous adjustment of the air flow and particularly prevents dirt, such as leaves, from being attracted and trapped and thus from entering the air openings.

[0017] In order to be able to particularly efficiently and effectively hold back dirt and thereby prevent it from entering the air openings, in the present invention, in the open position of the lamellae, second fins are arranged offset relative to the first fins in the longitudinal extension direction of each lamellae.

[0018] It is also contemplated that in the first open position, the first fins protrude from the first lamella toward the second lamella, such that in the first open position, the first direction points from the first lamella toward the second lamella. Furthermore, it is contemplated that in the second open position, the second fins protrude from the second lamella toward the first lamella, such that in the second open position, the second direction passes from the second lamella to the rear of the first lamella. This allows the lamellas and fins to form a particularly effective and efficient grid or grid-like structure in the open position, which can effectively and efficiently retain dirt, such as leaves.

[0019] In the open position of the lamellae, the lamellae are spaced apart from one another in a direction perpendicular to the longitudinal extension of each lamella. The spacing thus runs in either a first direction or a second direction. In the first open position, each first fin, which projects from the first lamella toward the second lamella in the first open position, has a first outer dimension, also referred to as a first height, which extends perpendicular to the longitudinal extension of each lamella and from the first lamella toward the second lamella, thus running in the first direction. In the second open position, each second fin, which projects from the second lamella toward the first lamella in the second open position, therefore running in the second direction, has a second outer dimension, also referred to as a second height, which extends perpendicular to the longitudinal extension of each lamella and from the second lamella toward the first lamella, thus running in the second direction. In particular, each first fin is contemplated to have a respective first free end terminating on the opposite side of the first lamella. Preferably, each second fin is further contemplated to have a respective second free end terminating on the opposite side of the second lamella. In that case, for example, in the first open position of the first lamella, each first fin extends consistently from the first lamella in a first direction to its respective first free end. Furthermore, for example, in the second open position of the second lamella, each second fin extends consistently from the second lamella in a second direction to its respective second free end.

[0020] In this case, it is further contemplated that the sum of the first and second outer dimensions is greater than 50% of the distance, particularly greater than 60%, and even more particularly greater than 70%. In other words, the sum of the first and second heights forms a total height greater than 50%, particularly greater than 60%, and very particularly greater than 70% of the distance. Preferably, the total height is greater than 80%, particularly greater than 90%, very particularly greater than 95%, and very preferably greater than 98% of the distance. On the one hand, this allows for effective and efficient retention of dirt, such as leaves, and prevents it from entering the air openings. On the other hand, when the lamellas are in the open position, it ensures an advantageous supply of a sufficient amount of air to the heat exchanger via the air openings.

[0021] In an advantageous embodiment of the invention, the fins extend in respective planes perpendicular to the longitudinal extension of the lamellae, which ensures an advantageous spacing of the fins along the longitudinal extension of the lamellae and thus ensures a sufficiently large supply of air to the heat exchanger in the open position, while the fins and lamellae advantageously capture and retain dirt.

[0022] Another embodiment is characterized in that, in the installed state of the air control system, the longitudinal extension of the lamellae runs in the transverse direction of the vehicle, which allows for advantageous regulation of the air flow, and the fins, in particular in cooperation with the lamellae, can advantageously form a grid, which allows for particularly good retention of dirt.

[0023] In another particularly advantageous embodiment of the invention, it is provided that in the installed state of the air control system and in the open position of the lamellae, each fin projects upward or downward from the lamellae in the vertical direction of the vehicle, so that the fins and the lamellae, specifically in the open position, can particularly advantageously form a grid, which allows particularly good retention of dirt.

[0024] The lamellae are also referred to as first lamellae, the fins are also referred to as first fins, the longitudinal direction is also referred to as first longitudinal direction, the open position is also referred to as first open position, and the closed position is also referred to as first closed position. Furthermore, the aforementioned directions are also referred to as first directions.

[0025] A second aspect of the present invention relates to a motor vehicle, also simply referred to as vehicle, preferably designed as a motor vehicle, in particular a passenger car, equipped with 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 can be considered as advantages and advantageous embodiments of the second aspect of the invention, and vice versa.

[0026] Further advantages, features and details of the invention will become apparent from the following description of preferred exemplary embodiments and on the basis of the drawings, in which: The features and combinations of features mentioned in the above description and those mentioned in the following description of the figures and / or shown only in the figures can be used not only in the respective combinations described, but also in other combinations or alone without departing from the scope of the invention. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a schematic front view of an automotive air control system. [Figure 2] 1 is a schematic cross-sectional side view of a portion of an air control system. [Figure 3] FIG. 1 is a schematic perspective view showing a portion of an air control system. [Figure 4] FIG. 2 is another schematic cross-sectional side view of a portion of the air control system. DETAILED DESCRIPTION OF THE INVENTION

[0028] In the various figures, identical or functionally identical elements are designated by the same reference numerals.

[0029] FIG. 1 shows a schematic front view of an air control system 10 for an automobile, also referred to simply as a vehicle. This means that an automobile, preferably designed as a motor vehicle, particularly a passenger car, has the air control system 10 in its fully manufactured state. In the fully manufactured state of an automobile equipped with the air control system 10, the air control system 10 assumes the mounted state shown in the figure. For example, the air control system 10 is located at the front of the automobile. In particular, the air control system 10 is located in, and particularly within, the front bumper of the automobile.

[0030] The air control system 10 has at least one air opening 12, also called a through-opening or formed as a through-opening, through which air, and thus the airflow formed by the air, can flow. For example, the air control system 10 includes a base element 14, which is particularly rigid and preferably formed as a solid body. For example, the air opening 12 is bounded (surrounded) by the base element 14 along its circumferential direction, particularly the entire circumference, as indicated by the double-headed arrow 16 in FIG. 1 . Via the air opening 12, the air flowing through the air opening 12 can be supplied to at least one heat exchanger of the vehicle. This can be understood, in particular, as meaning that the air opening 12 and the heat exchanger are arranged in an air passage through which the air passing through the air opening 12 can flow, and that the air can be supplied to the heat exchanger via this air passage. The heat exchanger is, for example, arranged downstream of the air opening 12 in the flow direction of the air flowing through the through-opening (air opening 12) and the air passage.

[0031] The air control system 10 includes a plurality of successive lamellae 20a-c spaced apart from one another along a spacing direction indicated by the double-headed arrow 18. Each of the lamellae 20a-c is inherently rigid and formed as a solid body. In particular, for example, each of the lamellae 20a-c is disposed in the air opening 20. Each of the lamellae 20a-c can move between at least one closed position, in which it covers and thereby closes off a respective partial region of the air opening 12, and at least one open position, in which it opens at least a respective partial region of the air opening 12. In this case, each of the lamellae 20a-c can rotate about a respective rotation 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 rotation axes 22a-c run parallel to one another in pairs and are spaced apart from one another in pairs. The rotation axes 22a-c run perpendicular to the spacing direction (the double-headed arrow 18). Furthermore, each of the lamellae 20a-c has a longitudinal extension that coincides with a respective rotation axis 22a-c and thus runs perpendicular to the spacing direction. Thus, the longitudinal extension directions run parallel to each other in pairs, and the longitudinal extension directions are spaced apart in pairs, particularly along the spacing direction indicated by the double-headed arrow 18. For example, in the closed position of the lamellae 20a-c, the air openings 12 are at least largely, i.e., at least half or more, or completely fluidly blocked by the lamellae 20a-c, so that air cannot pass through the air openings 12. In the open position, the lamellae 20a-c open the air openings 12, thereby ensuring that the air flowing through the air openings 12 is advantageously supplied to the heat exchanger. Therefore, the airflow can be adjusted, i.e., varied, by moving the lamellae 20a-c between the open and closed positions. The circumferential direction of the air openings 12, indicated by the double-headed arrow 16, extends, for example, in a plane passing through at least one of the rotation axes 22a to 22c.

[0032] To enable the air control system 10 to achieve a particularly wide range of functions, each of the thin plates 20a-c is provided with a plurality of fins 24a and 24b, each of which is inherently rigid and formed as a solid body. The fins 24a and 24b on each of the thin plates 20a-c are spaced apart and consecutively arranged in the longitudinal direction of the thin plate 20a-c on which the fins 24a and 24b are provided, such that the fins 24a are spaced apart from each other at a first distance A1 in the longitudinal direction of the thin plate 20a-c on which the fins 24a are provided. Furthermore, the fins 24b are spaced apart from each other at a second distance A2 in the longitudinal direction of the thin plate 20a-c on which the fins 24b are provided. In this case, it is preferable that the distances A1 are equal, so that the fins 24a are equally spaced in pairs in the longitudinal direction of the thin plate 20a-c. Furthermore, the intervals A2 are preferably equal, so that the fins 24b are preferably arranged in pairs at equal intervals in the longitudinal extension direction of each of the thin plates 20a-c on which the fins 24b are provided. Furthermore, the fins 24a and 24b are intended to be arranged at the same height in the longitudinal extension direction of each of the thin plates 20a-c on which the fins 24a and 24b are provided, so that each of the fins 24a is arranged at the same height as each of the fins 24b in the longitudinal extension direction of each of the thin plates 20a-c on which the fins 24a and 24b are provided. However, it is intended that the fins 24a and 24b on the thin plate 20b are arranged offset from the fins 24a and 24b on the thin plate 20a and offset from the fins 24a and 24b on the thin plate 20c in the longitudinal extension direction of each of the thin plates 20a-c.

[0033] Each fin 24a projects in a first direction from the respective thin plate 20a-c on which it is provided, and each fin 24b projects in a second direction from the respective thin plate 20a-c on which it is provided. The first direction is indicated by arrow 26, and the second direction is indicated by arrow 28. It can be seen that the second direction is opposite to the first direction, and vice versa. It can also be seen that the first direction and the second direction run perpendicular to the longitudinal extension of each thin plate 20a-c on which fins 24a and 24b are provided, respectively.

[0034] In the open position of each of the lamellae 20a-c, the fins 24a and 24b are arranged to overlap the respective portions of the air openings 12 adjacent to the lamellae 20a-c on which the fins 24a and 24b are provided. In the open position of the lamellae 20a-c, the fins 24a and 24b thereby form a mesh or grid-like structure, i.e., a grid that is formed or functions as, for example, a protective grid or a dirt-proof grid. The grid, and thus the fins 24a and 24b, in particular in cooperation with the lamellae 20a-c in the open position, can capture and retain dirt, such as leaves, thereby preventing it from entering the air openings 12.

[0035] In the illustrated exemplary embodiment, each fin 24a and 24b extends in a plane perpendicular to the longitudinal extension of each slat 20a-c. In the illustrated exemplary embodiment, in the installed state of air control system 10, the longitudinal extension of each slat 20a-c extends in the transverse direction of the vehicle and is therefore parallel to the transverse direction of the vehicle.

[0036] With air control system 10 installed and slats 20a-c in the open position, fins 24a project upward in the vehicle vertical direction and in so doing from each slat 20a in a first direction, such that with air control system 10 installed and slats 20a-c in the open position, a first direction indicated by arrow 26 extends upward in the vehicle vertical direction of the automobile. With air control system 10 installed and slats 20a-c in the open position, each fin 24b projects downward in the vehicle vertical direction from each slat 20a-c, such that with air control system 10 installed and slats 20a-c in the open position, a second direction indicated by arrow 28 extends downward in the vehicle vertical direction. Therefore, when the thin plates 20a to 20c are in the open position, the fins 24b provided on the thin plate 20a extend toward the thin plate 20b in a direction away from the thin plate 20a, and the fins 24a provided on the thin plate 20b extend toward the thin plate 20a in a direction away from the thin plate 20b. When the thin plates 20a to 20c are in the open position, the fins 24b provided on the thin plate 20b extend toward the thin plate 20c in a direction away from the thin plate 20c. Fin 24a provided on thin plate 20a extends in a direction away from thin plate 20a and in a direction away from thin plates 20b and 20c when thin plates 20a to 20c are in the open position, and fin 24b provided on thin plate 20c extends in a direction away from thin plate 20c and in a direction away from thin plates 20a and 20b when thin plates 20a to 20c are in the open position.

[0037] In the open positions of the thin plates 20a and 20b, the thin plates 20a and 20b are spaced apart by a third distance A3 perpendicular to the longitudinal extension of each thin plate 20a, 20b. Thus, the third distance A3 between the thin plates 20a and 20b extends in either the first or second direction. Furthermore, in the open positions of the thin plates 20b and 20c, the thin plates 20b and 20c are spaced apart by a fourth distance A4 perpendicular to the longitudinal extension of each thin plate 20b, 20c. For example, the distances A3 and A4 are equal. In the open positions of the thin plates 20a-c, each fin 24a has a first outer dimension perpendicular to the longitudinal extension of each thin plate 20a-c, also referred to as a first height, which extends in the first direction in the open positions of the thin plates 20a-c. In the open position of each lamella 20a-c, each fin 24b has a second outer dimension, also referred to as a second height, perpendicular to the longitudinal extension of each lamella 20a-c, which extends in the second direction in the open position of each lamella 20a-c. For example, in the open position of lamellas 20a and 20b, the second height of each fin 24b on lamella 20a and the first height of each fin 24a on lamella 20b result in a first total height greater than 50%, particularly greater than 60%, and very particularly greater than 70% of the third spacing A3. In particular, for example, the first total height is greater than 80%, particularly greater than 90%, very particularly greater than 95%, and very particularly greater than 98% of the spacing A3. When the lamellae 20b and 20c are in the open position, the second height of each fin 24b on lamella 20b and the first height of each fin 24a on lamella 20c result in a second total height that is preferably greater than 50% of the spacing A4, particularly greater than 60%, and very particularly greater than 70%. In particular, the second total height is preferably greater than 80%, particularly greater than 90%, very particularly greater than 95%, and very particularly greater than 98% of the spacing A4. For example, each fin 24a, 24b has a thickness extending along the longitudinal extension of each lamella 20a-c, which may be, for example, at most 2 mm, for example, at least 1 mm, and particularly at least 1.5 mm. For example, the spacing A1 may be greater than 30 mm, for example, less than 40 mm, e.g., 35 mm.The interval indicated by the symbol A5 in FIG. 1 and running in the longitudinal direction of the thin plate 20b is, for example, 30 mm.

[0038] 2 shows a schematic cross-sectional side view of the air control system 10. From FIG. 2, the fins 24a and 24b provided on the thin plates 20a-c can be particularly clearly seen.

[0039] FIG. 3 is a schematic perspective view of a portion of the air control system 10, from which the thin plates 20a-c and the fins 24a and 24b provided thereon can be particularly clearly seen. Finally, FIG. 4 is a schematic side cross-sectional view of a portion of the air control system 10. For example, when viewed in a plane formed in the vehicle longitudinal direction and extending in the vehicle vertical direction, particularly in cross section, each fin 24a, 24b has an outer circumferential surface formed, for example, in the shape of an arc, particularly a segment of a circle. For example, each height of each fin 24a is formed such that the radius defining the height of each fin 24a is, for example, half the respective interval A3 or A4. Therefore, each total height can be considered to correspond to the respective interval A3 or A4. In other words, the first total height and the interval A3 can be considered equal. Furthermore, the second total height and the interval A4 can be considered equal. In this regard, for example, in FIG. 4, the radius of each fin 24b provided on the thin plate 20a is indicated by the symbol R1, and for example, R1 = A3 / 2. 4, the radius of each fin 24b provided on the thin plate 20b is indicated by the symbol R2, and for example, R2=A4 / 2. Therefore, for example, the second height of each fin 24b provided on the thin plate 20a can be half the spacing A3. Furthermore, for example, the second height of each fin 24b provided on the thin plate 20b can be half the spacing A4.

Claims

1. 1. An air control system (10) for a motor vehicle, comprising: at least one air opening (12) through which air can flow and which allows air to be supplied to at least one heat exchanger; a first lamella (20a) rotatable about a first axis of rotation (22a) between at least one first closed position covering and thereby closing at least one partial area of ​​the air opening (12) and at least one first open position opening at least said partial area of ​​the air opening (12); and a second lamella (20b) rotatable about a second axis of rotation (22b) spaced apart from and running parallel to the first axis of rotation (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 opening at least said second partial area of ​​the air opening (12), the first lamella (20a) is provided with a plurality of first fins (24b) spaced apart from one another and successive in the longitudinal extension direction of the first lamella (20a), the first fins protruding from the first lamella (20a) in a direction (28) passing obliquely or perpendicularly to the longitudinal extension direction of the first lamella (20a) and arranged in the first open position so as to overlap with respective first portions of the air openings (12) adjacent to the first lamella (20a) in the first open position; the second lamella (20b) is provided with a plurality of second fins (24a) spaced apart from one another and successive in the longitudinal extension direction of the second lamella (20b), the second fins protruding from the second lamella (20b) in a second direction (26) running obliquely or perpendicularly to the longitudinal extension direction of the second lamella (20b) and arranged so as to overlap, in the second open position, with second portions of the air openings (12) adjacent to the second lamella (20b) in the second open position; - the longitudinal extensions of the laminae (20a, 20b) run parallel to one another, - in the open position of the lamellae (20a, 20b), the second fins (24a) are arranged offset relative to the first fins (24b) in the longitudinal extension direction of each lamella (20a, 20b); - in said first open position, said first fin (24b) projects from said first lamella (20a) towards said second lamella (20b); - in said second open position, said second fin (24a) projects from said second lamella (20b) towards said first lamella (20a); - in the open position, the lamellae (20a, 20b) are arranged at a distance (A3) from one another that runs perpendicular to the longitudinal extension of each of the lamellae (20a, 20b); - in said first open position, each of said first fins (24b) projecting from said first lamella (20a) towards said second lamella (20b) in said first open position has a first outer dimension perpendicular to the respective longitudinal extension of each of said lamellas (20a, 20b) and running from said first lamella (20a) towards said second lamella (20b); - in said second open position, each of said second fins (24a) projecting from said second lamella (20b) towards said first lamella (20a) in said second open position has a second outer dimension perpendicular to the respective longitudinal extension of each of said lamellas (20a, 20b) and running from said second lamella (20b) towards said first lamella (20a); the sum of the first outer dimension and the second outer dimension is greater than 50% of the spacing (A3); An air control system comprising:

2. Each of the first fins (24b) extends in a plane perpendicular to the longitudinal extension of the first thin plate (20a).

2. The air control system (10) of claim 1, characterized in that:

3. When the air control system (10) is installed, the longitudinal extension direction of the first thin plate (20a) passes through the lateral direction of the vehicle.

3. An air control system (10) according to claim 1 or claim 2, characterized in that:

4. When the air control system (10) is installed and the first thin plate (20a) is in the first open position, each of the first fins (24b) protrudes upward or downward from the first thin plate (20a) in the vehicle vertical direction. An air control system (10) according to any one of claims 1 to 3, characterized in that

5. A motor vehicle, comprising at least one air control system (10) according to any one of claims 1 to 4.

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