Air outlet with air outlet grid for vehicle

Abstract

The invention relates to an air outlet for a vehicle, the air outlet having a housing and an air channel delimited at least partially or partially by the housing, the air channel having an air inlet end and an air outlet end, an air flow flowing through the air channel being able to flow from the air inlet end to the air outlet end in a main flow direction. Furthermore, the air outlet has an air outlet grid which is arranged at the air outlet end, the air outlet grid having an open mesh with grid openings which are spaced apart from one another by at least one mesh strip. According to the invention, in particular, it is proposed that the at least one web in the outlet grille has an upstream inflow region and a downstream outflow region, at least one flow edge and / or step being formed in the region of the at least one web between the inflow region and the outflow region.

Description

[0001] The present invention generally relates to an air outlet, in particular an air outlet for a ventilation system of a vehicle. The invention also relates to a ventilation system having such an air outlet and a corresponding air outlet system.

[0002] In ventilation systems for vehicles, air outlets or air outlet nozzles are generally used, which allow targeted control of the escaping air jet. Such air outlets are used, in particular, to supply fresh air into the vehicle interior.

[0003] In this case, the air flow flows via an inlet opening at the air inlet region of the air outlet device into an air channel delimited by the housing wall of the air outlet device, through this air channel, and finally through an outlet opening at the air outlet region of the air outlet device into the interior of a vehicle (e.g., a car or train). The air flow generally follows a main flow direction, which can, in particular, extend at least approximately parallel to the longitudinal axis of the housing of the air outlet device.

[0004] In the case of known air outlets, the air flow is deflected from the main flow direction by one or more air guide elements (e.g. pivotable air guide fins). In addition to the air guide elements, the housing of the air diffuser defining the air channel can also be used to deflect the air from the main flow direction.

[0005] For design reasons, it is sometimes desirable to harmoniously integrate the outlet opening of the air vent as a slot-shaped opening into the overall instrument panel design so that functional elements of the air vent, in particular the air guiding elements / air guiding fins, are not directly visible from the vehicle interior.

[0006] Because the air outlets are directly visible from the vehicle interior, they should also have a visually appealing appearance. In particular, there is a need for the design and appearance of the air outlets to adapt to the interior atmosphere. For this reason, air outlets with a relatively low height compared to their length are desirable. However, due to design reasons, air deflection in this case is quite limited.

[0007] In order to achieve a defined air deflection, the air outlets known from the prior art usually have a certain height so that a certain number of air guiding fins can be arranged. The number of air guiding fins therefore also determines the maximum air deflection.

[0008] There is an increasing demand for air vents that are relatively small in height and relatively large in width. In particular, air vents should be designed such that they can be installed in the dashboard of a vehicle without the air vent or its functional elements being visible.

[0009] One way to make the air vents increasingly invisible in the instrument panel is to arrange an air outlet grille at the air outlet end of the air duct of the air vent. This grille conceals the air duct and the functional components of the air outlet behind it when viewed from the vehicle interior. The grille can be designed to match the design of the instrument panel, thereby allowing the structure of the air vent grille in the instrument panel to continue in a suitable manner.

[0010] In particular, an air outlet with such an air outlet grille can be easily integrated into surrounding components of an instrument panel or an instrument panel.

[0011] However, outlet grilles have the disadvantage that the airflow escaping from the air duct of the air outlet is impeded by the grille. In particular, undesirable vortices can occur, which can significantly reduce the airflow. This becomes more pronounced the finer the mesh openings of the outlet grille.

[0012] Another negative influence on the performance of the air outlet is that the air outlet grilles often do not achieve sufficient air deflection. The mesh bars of the air outlet grilles form so-called "flow focusing beams". ”, which has a negative impact on the air outlet behavior, especially the air deflection, of the air outlet. This makes it impossible to ensure that the target point is reached to the desired degree. Similarly, the formation of a flow bundle has a negative impact on the perceptibility of the air flow if it is formed too wide and more like a diffuse air flow.

[0013] However, an airflow that is as concentrated, perceptible, and well directed as possible is desired.

[0014] Starting from this problem, the present invention is therefore based on the object of providing an air outlet with an air outlet grille in order to thereby conceal functional elements present in the air duct of the air outlet and achieve ideal integration with the instrument panel design, wherein despite the provision of the air outlet grille, the air outlet behavior and performance of the air outlet are not adversely affected.

[0015] The object underlying the invention is achieved in particular by an air outlet according to independent patent claim 1 , wherein advantageous developments of the air outlet according to the invention are specified in the dependent claims.

[0016] The present invention therefore relates in particular to an air outlet for a vehicle, wherein the air outlet comprises a housing and an air passage at least partially or partially delimited by the housing, the air passage having an air inlet end and an air outlet end. An air flow through the air passage can flow in a main flow direction from the air inlet end to the air outlet end.

[0017] Furthermore, the air outlet according to the invention comprises an air outlet grille which is arranged or can be arranged at the air outlet end or in a certain area of ​​the air outlet end, wherein the air outlet grille comprises an open grid with grille openings separated from each other by at least one mesh bar.

[0018] The air outlet according to the present invention is particularly distinguished in that at least one of the bars of the air outlet grille has an upstream inflow region, as viewed in the main flow direction, and a downstream outflow region, as viewed in the main flow direction. At least one flow edge and / or step is formed in a region of the at least one bar, particularly in the middle, between the inflow and outflow regions.

[0019] In particular, the at least one flow edge and / or step is designed such that, when the air outlet is used as intended and air flows through the air outlet, a flow separation occurs in the region of the at least one flow edge and / or step.

[0020] In fluid mechanics, flow separation is understood as the detachment of a fluid from an object surface. Therefore, in the present case, the at least one flow edge and / or step of the at least one web strip serves to detach the fluid in the region of the at least one flow edge and / or step from the web strip surface.

[0021] The resulting fluid dynamics effect means that the airflow no longer follows the contour of the outflow region of the at least one web.Flow separation enables free orientation of the airflow, more precisely without being influenced by boundary layer effects (such as the Coanda effect).

[0022] When air flows straight and obliquely through the air outlet grille, the flow separation caused by the at least one flow edge and / or step prevents undesirable fanning of the airflow. In other words, the fanning of the airflow can be adjusted or reduced by the at least one flow edge and / or step.

[0023] According to an embodiment of the air outlet according to the invention, it is provided that the region, in particular the center, of the at least one web between the inflow region and the outflow region is formed by at least one wall region extending in the main flow direction.

[0024] In particular, in an embodiment of the air outlet according to the present invention, it is provided that the inflow region of the at least one mesh strip has at least two surfaces that diverge from one another in the main flow direction. Alternatively or in addition thereto, it is provided that the outflow region of the at least one mesh strip has at least two surfaces that converge toward one another in the main flow direction.

[0025] In this context, it is conceivable, for example, that the at least two surfaces diverging from one another in the main flow direction are designed to be at least partially or partially curved, in particular convexly curved. It is also conceivable that the at least two surfaces converging toward one another in the main flow direction are designed to be at least partially or partially curved, in particular convexly curved.

[0026] In the embodiment of the air outlet according to the invention, it is proposed that the at least one mesh strip, in particular the middle region, is provided with the at least one flow edge and / or step downstream of the inflow region of the at least one mesh strip, as viewed in the main flow direction.

[0027] Particularly preferably, at least one first upstream flow edge and / or step and at least one second downstream flow edge and / or step are formed in the at least one wire strip, in particular in the middle region between the inflow region and the outflow region.

[0028] Against this background, in a further embodiment of the air outlet according to the invention, it is particularly provided that the inflow region of the at least one mesh strip has at least one surface extending perpendicularly to the main flow direction. Alternatively or in addition thereto, it is conceivable that the outflow region of the at least one mesh strip has at least one surface extending perpendicularly to the main flow direction.

[0029] Preferably, the cross-sectional area of ​​the at least one wire strip is designed to be axisymmetric, specifically in particular to have an axis which runs symmetrically in the main flow direction.

[0030] Therefore, according to the implementation of the air outlet of the present invention, it is proposed that the cross-sectional area of ​​the at least one mesh strip is at least substantially or at least approximately in the shape of a regular polygon, a rhombus, or a kite (harrier).

[0031] According to a preferred embodiment of the air outlet according to the invention, the air outlet comprises at least one air guiding element, and preferably a plurality of air guiding elements, which are adjustable relative to the main flow direction and in particular relative to the housing. The at least one air guiding element is, in particular, manually operable as required, in such a way that, at least at the air outlet of the air outlet, the air flow passing through the air outlet can be deflected in a direction perpendicular to the main flow direction.

[0032] In this context, it is in particular provided that the at least one air guiding element is arranged upstream of the air outlet grille, as seen in the main flow direction, and in particular is arranged at a distance from the air outlet grille.

[0033] In a conceivable embodiment of the aforementioned embodiment variant of the air outlet according to the invention, it is provided that, starting from a neutral position of the at least one air-guiding element (in which the air-guiding element does not deflect the air flow from the main flow direction), the at least one air-guiding element can be adjusted relative to the main flow direction and, in particular, relative to the housing, into a first maximum position and / or a second maximum position. In the first maximum position or the second maximum position of the at least one air-guiding element, the at least one air-guiding element deflects the air flow flowing through the air outlet in a first direction oblique to the main flow direction, at least at the air outlet of the air outlet.

[0034] In particular, it is provided that the first direction is at least substantially parallel to the direction in which at least one of the at least two surfaces of the outflow region of the at least one web of the air outlet grille converges in the main flow direction.

[0035] In this context, "at least substantially parallel" means a direction which deviates by a maximum of 10° and preferably by a maximum of 5° from the direction in which the at least one converging surface of the outflow area of ​​the at least one wire strip extends.

[0036] Alternatively or in addition to the above-mentioned embodiment variant, it can be provided that the first direction, in which the air flow is deflected from the main flow direction by means of the at least one air-guiding element in its maximum position, is at least approximately parallel to the direction in which at least one of the at least two surfaces of the inflow region of the at least one web of the air outlet grille, which surfaces diverge from one another in the main flow direction, extends. In this context, "at least approximately parallel" means a direction that deviates by a maximum of 10°, and preferably by a maximum of 5°, from the direction in which one of the at least two surfaces of the inflow region of the at least one web of the air outlet grille, which surfaces diverge from one another in the main flow direction, extends.

[0037] The grille openings of the air outlet grille can be formed in a slot-shaped manner, although a honeycomb-shaped design is also conceivable.

[0038] The air outlet grille is preferably designed to be detachable and / or replaceable from the housing of the air outlet. In particular, the air outlet grille is part of a panel in the air outlet region of the air outlet device that is detachable and / or replaceable from the housing of the air outlet device. Alternatively or in addition thereto, the air outlet grille is part of a panel that is attached to the housing of the air outlet device, in particular in a detachable and / or replaceable manner.

[0039] The air outlet grille is preferably part of a panel mounted on the housing. The air outlet grille has an opening grid, which is composed of grille openings spaced apart from each other by means of a plurality of mesh bars.

[0040] In principle, the air outlet grille can be constructed from parallel bars spaced at regular intervals, similar to the arrangement of the lamellae. In particular, the opening grid of the air outlet grille can be formed from a plurality of intersecting bars. Thus, the grille openings of the air outlet grille can be, in particular, polygonal, such as triangular or square. In this case, the grille openings are preferably formed in a uniform manner and arranged at regular intervals.

[0041] The air outlet grille can have a large number of grille openings, and in particular, can be provided with grille openings on its entire surface. Here, the bars of the air outlet grille can have a relatively small diameter compared to the diameter of the grille openings.

[0042] The air outlet grille can be made of metal or plastic, for example, wherein forming the air outlet grille with a plastic injection molding process is particularly preferred. When made of metal, the air outlet grille has high stability.

[0043] According to a refinement of the present invention, the air-guiding element of the air outlet forms an opening grid having a larger grille opening than the grille opening of the outlet grille. Therefore, the opening grid of the outlet grille is "finer" than the opening grid of the air-guiding element. The outlet grille, due to its finer opening grid, provides effective visual protection because the air-guiding element, located upstream of the outlet grille in the air passage of the air outlet, is concealed by the outlet grille. Despite the fine opening grid, the outlet grille still allows airflow through it.

[0044] Even if the grille opening is not relatively small, the formation of undesirable flow bundles can be prevented or at least reduced by providing flow edges and / or steps on the mesh bars of the air outlet grille, thereby achieving a concentrated, perceptible, and well-directional airflow.

[0045] The present invention further relates to an air outlet grille for an air outlet of a vehicle, in particular to an air outlet grille for an air outlet of the type according to the present invention.

[0046] The air outlet grille can be connected to the housing of the air outlet in a detachable, in particular replaceable manner, in particular as part of a panel which is detachable and / or replaceable to the housing of the air outlet in the air outlet region of the air outlet.

[0047] The air outlet grille of the present invention comprises an open grid having grille openings separated from one another by at least one mesh bar. The at least one mesh bar of the air outlet grille comprises an inflow region located upstream in the main flow direction of the air outlet and an outflow region located downstream in the main flow direction of the air outlet. At least one flow edge and / or step is formed in a region of the at least one mesh bar located between the inflow region and the outflow region, particularly in a region intermediate therebetween.

[0048] The at least one flow edge and / or step is designed in such a way that, when the air outlet is used as intended and air flows through it, a flow separation occurs in the region of the at least one flow edge and / or step.

[0049] The present invention will be described in more detail below with reference to the accompanying drawings.

[0050] In the attached figure:

[0051] Figure 1 An exemplary embodiment of an air outlet according to the invention is shown schematically and in an isometric view;

[0052] Figure 2 Schematically and in cross-section, the side view according to Figure 1 An exemplary embodiment of the air outlet of the present invention is shown;

[0053] Figure 3 Schematically and in cross-section, the top view according to Figure 1 The exemplary embodiment of the air outlet of the present invention is shown; and

[0054] Figure 4 An assembly of an air guiding element and the webs of an air outlet grille according to another aspect of the invention is schematically shown.

[0055] The present invention will be described in detail below by means of exemplary embodiments with reference to the accompanying drawings.

[0056] Figures 1 to 3 The schematically shown air outlet 1 has a housing 2 with an air inlet end 3 and an air outlet end 4 , wherein an air flow through an air channel of the air outlet 1 defined by the housing 2 can flow in a main flow direction H from the air inlet end 3 to the air outlet end 4 of the housing 2 .

[0057] The exemplary embodiment of the air outlet 1 of the present invention further comprises an air outlet grille 5 at the air outlet end 4 or in a certain area of ​​the air outlet end 4 , wherein the air outlet grille 5 comprises an open grid with grille openings 7 separated from each other by mesh bars 6 .

[0058] For example, the air outlet grille 5 may be a part of a panel mounted on the housing 2 of the air outlet 1 .

[0059] In the embodiment shown in the figures, the air outlet grille 5 is composed of parallel mesh bars 6 spaced at regular intervals.

[0060] However, in principle, it is also conceivable that the opening grid of the air outlet grille 5 is composed of a plurality of mutually intersecting mesh bars 6. Therefore, the grille opening 7 of the air outlet grille 5 can be polygonal, for example triangular or square.

[0061] In the embodiment of the air outlet 1 according to the invention shown in the figures, the grille openings 7 are formed in the same manner and are arranged at regular distances from one another.

[0062] The air outlet grille 5 has a plurality of grille openings 7, wherein the air outlet grille 5 can be provided with slot-shaped grille openings 7 over its entire surface. Here, the diameter of the mesh bars 6 of the air outlet grille 5 is smaller than the grille openings 7. The air outlet grille 5 is formed in particular during a plastic injection molding process.

[0063] The air outlet grille 5 forms a kind of privacy barrier, since the air guiding elements 17 , 18 arranged upstream of the air outlet grille 5 in the air duct of the air outlet 1 are at least partially or partially concealed by the air outlet grille 5 .

[0064] If we can Figure 2 As can be seen from the schematic side-sectional view of FIG, air guide elements 17, 18 are provided inside the housing 2 of the air outlet 1 to achieve the desired air deflection. In the upstream region of the housing 2, a plurality of H-shaped lamellae arranged parallel to one another are provided as (first) air guide elements 18. These lamellae are mounted so as to be pivotable relative to the housing 2 and the main flow direction H.

[0065] Available from Figure 3 As can be seen from the top view of FIG, the H-shaped lamellae are connected to each other by corresponding coupling rods 19 so as to synchronize their movement relative to the housing 2 of the air outlet 1.

[0066] Downstream of the lamellae of the H-shaped lamellae, at least one V-shaped lamella arranged orthogonally to the H-shaped lamellae is arranged as a further air guide element 17 in order to deflect the air flow in the vertical direction relative to the main flow direction H as required.

[0067] The bars 6 of the air outlet grille 5 are arranged downstream and are spaced apart from each other.

[0068] If you can Figure 4 As can be seen from the schematic view of FIG, each bar 6 of the air outlet grille 5 has an inflow area 8 located upstream along the main flow direction H and an outflow area 9 located downstream along the main flow direction H.

[0069] A central region 11 of the respective web 6 of the air outlet grille 5 is provided between the inflow region 8 and the outflow region 9. In this region 11, at least one flow edge 10, 10' or step is formed.

[0070] exist Figure 4 In the embodiment shown, two upstream first flow edges 10 and two downstream second flow edges 10 ′ are formed in this region 11 .

[0071] The flow edges 10 , 10 ′ are designed in such a way that when the air outlet 1 is used as intended and air flows through the air outlet 1 , a flow separation occurs in the region 11 of the flow edges 10 , 10 ′.

[0072] exist Figure 4 In the illustrated embodiment variant of the bars 6 of the air outlet grille 5 , the central region 11 of the bars 6 is formed by wall regions 12 of the bars 6 extending in the main flow direction H.

[0073] In addition, in particular, Figure 4 As can be seen from the cross-sectional view of FIG. 8 , the inflow region 8 of the web 6 has two surfaces 13 diverging from one another in the main flow direction H, while the outflow region 9 of the web 6 has two surfaces 14 converging from one another in the main flow direction H.

[0074] Although not in Figure 4 , it is also conceivable in principle that the two surfaces 13 diverging from one another in the main flow direction H and / or the two surfaces 14 converging from one another in the main flow direction H are embodied at least partially or in regions curved, in particular convexly curved.

[0075] Viewed in the main flow direction H, the central region 11 of the wire strip 6 with the corresponding flow edges 10 , 10 ′ and / or steps is arranged downstream of the inflow region 8 of the wire strip 6 .

[0076] In addition, especially in Figure 4 In the exemplary embodiment shown, the inflow region 8 of the wire strip 6 has a surface 15 extending perpendicularly to the main flow direction H, while the outflow region 9 of the wire strip 6 has a surface 16 extending perpendicularly to the main flow direction H.

[0077] The cross-sectional area of ​​the web 6 is in particular designed to be axisymmetric, to be more precise, to have an axis extending symmetrically in the main flow direction H.

[0078] For example, in Figure 4 In the exemplary embodiment shown, it is provided that the cross-sectional area of ​​the web 6 has at least approximately a kite-shaped shape, but other shapes are also conceivable, for example a regular polygonal shape or a rhombus shape.

[0079] The at least one air-guiding element 18 of the air outlet 1, which is arranged immediately upstream thereof, is particularly manually operable in such a way that, at least at the air outlet of the air outlet 1, the air flow flowing through the air outlet 1 can be deflected in a direction perpendicular to the main flow direction H. Here, viewed in the main flow direction H, the at least one air-guiding element 18 is arranged upstream of the air outlet grille 5 and, in particular, is arranged at a distance from the air outlet grille 5.

[0080] Starting from the neutral position, the at least one air guiding element can be adjusted to a first maximum position and a second maximum position relative to the housing 2 of the air outlet 1 and relative to the main flow direction H, wherein in the maximum position of the at least one air guiding element 18, the air guiding element deflects the air flow flowing through the air outlet 1 in a first direction inclined to the main flow direction H at least at the air outlet of the air outlet 1.

[0081] Preferably, the first direction is at least substantially parallel to the direction in which one of the two surfaces 14 of the outflow region 9 of the bars 6 of the air outlet grille 5 , which surfaces converge toward each other in the main flow direction H, extends.

[0082] Alternatively or additionally, it is advantageous if the first direction is at least approximately parallel to the direction in which at least one of the two surfaces 13 of the inflow region 8 of the bars 6 of the air outlet grille 5 diverging from one another in the main flow direction H extends.

[0083] In short, the present invention can achieve a directable and at least substantially concentrated airflow by means of a specific design of the bars 6 of the air outlet grille 5. A suitable air outlet grille 5 is formed based on a suitable cross section of the bars 6 in the air outlet grille 5.

[0084] In this context, for aerodynamic reasons, a rhombus-shaped or kite-shaped cross section is suitable. Here, the edge / flow edge 10, 10' of the rhombus-shaped or kite-shaped cross section can also be rounded to an ellipse or oval.

[0085] A suitable grid 5 is formed based on the appropriate cross-section of the bars or webs 6 therein. For aerodynamic reasons, a cross-section approximately in the shape of a diamond or a harrier is initially chosen. The edges of the approximately diamond or harrier cross-section can also be rounded to form an ellipse or an oval. The diamond, harrier, ellipse, or oval shape is oriented appropriately in the direction of flow. Of course, such a grid 5 is composed of a plurality of longitudinal and transverse bars, which can be positioned as desired.

[0086] Here, not only right-angled arrangements but also oblique-angled arrangements and honeycomb-shaped arrangements are possible.

[0087] In the embodiment shown here, the harrier is arranged with its major axis in the flow direction H and is flat at the tip lying in the flow direction H. The angle of the harrier is adapted to the deflection angle to be achieved.

[0088] This cross section allows both direct flow through the grid 5 and flow at an angle. Here, the inclined surface generated by the harrier-shaped cross section also helps to maintain the flow direction through the grid 5.

[0089] In the case of a transverse rectangular cross section of the lattice bars / webs 6 , the air flow at the lattice bars 6 is again deflected in a straight line, and the resulting deflection of the air jet is still lower than would be expected.

[0090] For geometrical reasons, edges 10, 10' are formed on the sides of the harrier. Flow separation is achieved at these edges 10, 10'. This flow separation enables free orientation of the airflow without being affected by boundary layer effects (such as the Coanda effect).

[0091] For straight and inclined airflows, the trailing edge 10' prevents undesirable fanning of the airflow. The fanning is adjusted by the trailing edge 10'.

[0092] In order to strengthen or weaken such effect accordingly, also can insert step portion here, its height varies according to requirements.In addition, such step portion also helps to realize the manufacturability of grid 5 in injection molding process.

[0093] It has been shown that a certain distance between the air guide elements 17, 18 in the air outlet 1 and the grille 5 is advantageous in order to ensure pressure equalization between the side facing toward the air flow and the side facing away from the air flow, for example when the air guide elements 17, 18 are in a certain angled position.

[0094] The significant gap between the grille 5 and the air flow guide elements 17 , 18 also enables a transverse flow which minimizes undesirable effects on the air flow through the grille 5 (such as straightening the air flow).

[0095] Another advantage can be to keep the grille 5 at a distance from the housing 2 of the air outlet 1. In particular, in the edge areas of the housing 2 of the air outlet 1 and the grille 5, which are in direct contact in this case, an undesirable pressure buffer can lead to a straightening of the air flow.

[0096] A spacer with a substantially free flow through it enables pressure compensation and relief of pressure surges (posters).

[0097] Typically, the perforated plate projects from the outside into the air outlet 1. In the case of a grille 5, this projection can be increased. In this case, the spacers of the grille 5 also have a positive effect on the deflection of the airflow.

[0098] The special geometry of the cross section of the grid bars 6 even increases the deflection of the air jet. This is achieved by cleverly utilizing the pressure conditions on the individual grid bars 6.

[0099] If the oblique air flow hits the grille 5 at the trailing edge 10 ′, it acts on the surface 14 , while the flow separates at the opposite trailing edge 10 ′ and a negative pressure zone is generated at the opposite surface 14 .

[0100] Furthermore, a wake vortex forms on the side 14 of the trailing edge 10 ′ facing the airflow, which fills the negative pressure region on the opposite surface 14 .

[0101] Due to such effect, the air flow is deflected in the direction of a side away from the air flow. In an arrangement with a plurality of grid bars 6, this effect can be enhanced and affect the entire air flow.

[0102] The invention is not limited to the exemplary embodiments shown in the drawings, but rather results from an overview of all features disclosed herein.

[0103] List of Reference Numerals

[0104] 1 air outlet

[0105] 2 Housing

[0106] 3 Air inlet port

[0107] 4 Air outlet port

[0108] 5. Air outlet grille / grill

[0109] 6 mesh strips

[0110] 7 Grille openings

[0111] 8 Inflow area

[0112] 9 Outflow area

[0113] 10 Flow edge / step

[0114] 11 Middle Area

[0115] 12 Wall area in the middle area

[0116] 13 Divergent Surface

[0117] 14 Converging surfaces

[0118] 15 Surface of the inflow area extending perpendicular to the main flow direction

[0119] 16 Surface of the outflow region extending perpendicular to the main flow direction

[0120] 17 Air guide element (V-shaped sheet)

[0121] 18 Air guide element (H-shaped sheet)

[0122] 19 Connecting rod

[0123] H Main flow direction H

Claims

1. An air outlet (1) for a vehicle, wherein the air outlet (1) has: - housing (2); - an air channel at least partially or partially defined by the housing (2), the air channel having an air inlet end (3) and an air outlet end (4), wherein an air flow through the air channel can flow along a main flow direction (H) from the air inlet end (3) to the air outlet end (4); and - an air outlet grille (5), which is arranged or can be arranged at the air outlet end (4) or in a certain area of ​​the air outlet end (4), wherein the air outlet grille (5) has an open grid with grille openings (7) spaced apart from each other by at least one mesh bar (6), It is characterized by: The at least one mesh bar (6) of the air outlet grille (5) has an inflow area (8) located upstream along the main flow direction (H) and an outflow area (9) located downstream along the main flow direction (H), wherein at least one flow edge (10, 10') and / or a step is formed in a region (11) of the at least one mesh bar (6) located between the inflow area (8) and the outflow area (9), in particular in the middle.

2. The air outlet (1) according to claim 1, The at least one flow edge (10, 10') and / or the step is designed such that when the air outlet (1) is used as intended and air flows through the air outlet (1), flow separation occurs in the region (11) of the at least one flow edge (10, 10') and / or the step.

3. The air outlet (1) according to claim 1 or 2, The at least one mesh strip (6) has a region (11) located between the inflow region (8) and the outflow region (9), in particular a middle region (11), which is formed at least partially or partially by at least one wall region (12) extending in the main flow direction (H).

4. The air outlet (1) according to any one of claims 1 to 3, wherein the inflow region (8) of the at least one mesh strip (6) has at least two surfaces (13) diverging from one another in the main flow direction (H); and / or The outflow region (9) of the at least one wire strip (6) has at least two surfaces (14) that converge toward one another in the main flow direction (H).

5. The air outlet (1) according to claim 4, wherein the at least two surfaces (13) diverging from one another in the main flow direction (H) are embodied at least partially or locally curved, in particular convexly curved; and / or The at least two surfaces (14) converging toward one another in the main flow direction (H) are designed to be at least partially or partially curved, in particular convexly curved.

6. The air outlet (1) according to any one of claims 1 to 5, The at least one mesh strip (6), in particular a central region (11) having the at least one flow edge (10, 10') and / or the step, is arranged downstream of the inflow region (8) of the at least one mesh strip (6), viewed in the main flow direction (H).

7. The air outlet (1) according to any one of claims 1 to 6, In the at least one mesh strip (6), in a region (11) located between the inflow region (8) and the outflow region (9), in particular in the middle, at least one first upstream flow edge (10) and / or step and at least one second downstream flow edge (10') and / or step are formed.

8. The air outlet (1) according to any one of claims 1 to 7, wherein the inflow region (8) of the at least one mesh strip (6) has at least one surface (15) extending perpendicularly to the main flow direction (H); and / or The outflow region (9) of the at least one wire strip (6) has at least one surface (16) extending perpendicularly to the main flow direction (H).

9. The air outlet (1) according to any one of claims 1 to 8, The cross-sectional area of ​​the at least one mesh strip (6) is designed to be axisymmetric, ie, has an axis of symmetry along the main flow direction (H).

10. The air outlet (1) according to claim 9, The cross-sectional area of ​​the at least one mesh strip (6) is at least substantially or at least approximately in the shape of a regular polygon, a rhombus or a kite.

11. An air outlet (1) according to one of claims 1 to 10 and at least according to claim 4, wherein the air outlet (1) has at least one air guide element (17, 18) which can be adjusted relative to the main flow direction (H) and in particular relative to the housing (2), and preferably has a plurality of air guide elements (17, 18) which can be adjusted relative to the main flow direction (H) and in particular relative to the housing (2), the at least one air guide element or the plurality of air guide elements (17, 18) being in particular manually operable as required by The invention provides a method for adjusting the air flow through the air outlet (1) at least at the air outlet end (4) of the air outlet (1), so that the air flow flowing through the air outlet (1) is adjustable and can be operated as needed, in particular manually, in such a way that the air flow flowing through the air outlet (1) at the air outlet end (4) of the air outlet (1) can be deflected in a direction perpendicular to the main flow direction (H), wherein, viewed along the main flow direction (H), the at least one air guiding element (17, 18) is arranged upstream of the air outlet grille (5) and is in particular arranged to be spaced a certain distance from the air outlet grille (5).

12. The air outlet (1) according to claim 11, Starting from a neutral position of the at least one air guiding element (17, 18), the at least one air guiding element (17, 18) can be adjusted to a first maximum position and / or a second maximum position relative to the main flow direction (H) and in particular relative to the housing (2), wherein in the first maximum position or the second maximum position of the at least one air guiding element (17, 18), the air flow flows from the at least one air guiding element (17, 18) through the air outlet (1) at least at the air outlet end (4) of the air outlet (1), and the air flow flowing through the air outlet (1) is deflected along a first direction oblique to the main flow direction (H), wherein the first direction extends at least substantially parallel to a direction in which at least one of the at least two surfaces (14) of the outflow area (9) of the at least one mesh bar (6) of the air outlet grille (5) that converge with each other along the main flow direction (H) extends.

13. An air outlet (1) according to claim 11 or 12 and at least according to claim 4, wherein, starting from a neutral position of the at least one air guiding element (17, 18), the at least one air guiding element (17, 18) can be adjusted to a first maximum position and / or a second maximum position relative to the main flow direction (H) and in particular relative to the housing (2), wherein in the first maximum position or the second maximum position of the at least one air guiding element (17, 18), the air flow flowing through the air outlet (1) is deflected by the at least one air guiding element (17, 18) at least at the air outlet of the air outlet (1), the air flow flowing through the air outlet (1) is deflected along a first direction oblique to the main flow direction (H), the first direction extending at least substantially parallel to the direction in which at least one of the at least two surfaces (13) of the inflow area (8) of the at least one mesh bar (6) of the air outlet grille (5) that diverge from each other along the main flow direction (H) extends.

14. The air outlet (1) according to any one of claims 1 to 13, The grille opening (7) of the air outlet grille (5) is formed in a slot shape or a honeycomb shape.

15. The air outlet (1) according to any one of claims 1 to 14, The air outlet grille (5) is designed to be detachable and / or replaceable from the housing (2) of the air outlet (1), and the air outlet grille (5) is particularly a part of a panel that is detachable and / or replaceable from the housing (2) of the air outlet (1) in the air outlet area of ​​the air outlet (1), and / or the air outlet grille is a part of a panel that is particularly detachable and / or replaceable on the housing (2) of the air outlet (1).

16. An air outlet grille (5) for an air outlet (1) of a vehicle, in particular an air outlet grille for an air outlet (1) according to any one of claims 1 to 15, wherein the air outlet grille (5) can be connected to the housing (2) of the air outlet (1) in a releasable and / or replaceable manner, in particular as part of a panel that is releasable and / or replaceable with the housing (2) of the air outlet (1) in the air outlet area of ​​the air outlet (1), wherein the air outlet grille (5) has an opening grid having at least one mesh The invention relates to a grille opening (7) with bars (6) spaced apart from each other, wherein the at least one mesh bar (6) of the air outlet grille (5) has an upstream inflow area (8) viewed along the main flow direction (H) of the air outlet (1) and a downstream outflow area (9) viewed along the main flow direction (H) of the air outlet (1), wherein at least one flow edge (10, 10') and / or a step is formed in a region (11) of the at least one mesh bar (6) located between the inflow area (8) and the outflow area (9), in particular in the middle.

17. The air outlet grille (5) according to claim 16, The at least one flow edge (10, 10') and / or the step is designed such that when the air outlet (1) is used as intended and air flows through the air outlet (1), flow separation occurs in the region (11) of the at least one flow edge (10, 10') and / or the step.

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