Outlet for guiding a fluid medium and vehicle with such an outlet

Abstract

A diffuser for guiding a fluid medium, in particular air, from a supply device for the fluid medium into a target area, wherein the diffuser has a passage (1) with an inner wall (2) and at least one lamella (4) arranged in the passage (1) and pivotably mounted about a vertical or horizontal axis (3) for specifying a flow direction for fluid medium flowing through the passage (1) towards the target area, and wherein a lamella (4) arranged adjacent to the inner wall (2) has a front section (10) facing the target area and a rear section (11) connected to the front section (10) via a first joint (12) and facing away from the target area, characterized in that the rear section (11) is connected in the region of an end of the rear section (11) facing away from the first joint (12) via a second joint (12).The joint (13) is pivotably mounted in the area of ​​the inner wall (2) such that, in a pivoted state of the front section (10) of the lamella (4) towards the inner wall (2), the formation of a dead space (8) between the lamella (4) and the inner wall (2) for fluid medium flowing through the passage (1) is largely prevented. Furthermore, a vehicle with such an outlet is described.

Description

[0001] The invention relates to an outlet for guiding a fluid medium, in particular air, from a supply device for the fluid medium into a target area, wherein the outlet has a passage chamber with an inner wall and at least one lamella arranged in the passage chamber and pivotably mounted about a vertical or horizontal axis for specifying a flow direction for fluid medium flowing through the passage chamber towards the target area, and wherein a lamella arranged adjacent to the inner wall has a front section facing the target area and a rear section connected to the front section via a first joint and facing away from the target area.

[0002] Furthermore, the invention relates to a vehicle with such an air outlet.

[0003] Such air vents are well-known in practice and exist in various designs. For example, they are used for air conditioning in vehicle interiors. These vents typically deliver air, usually supplied via ducts from a ventilation or air conditioning unit, to the passengers or the interior as the target area. They also serve to direct the airflow in a desired direction, for example, to ventilate a passenger directly or, if desired, to direct the airflow as far away from a passenger as possible.

[0004] Rotating louvers are typically used to direct the airflow. These louvers are divided into horizontal louvers to direct the air upwards or downwards, and vertical louvers to direct the airflow to the left or right.

[0005] There are legal requirements for ventilation that must be strictly adhered to. During the design phase, care must be taken to ensure that the airflow at the outlet is not obstructed as much as possible. Otherwise, larger air conditioning units with higher output may be required to meet legal and comfort requirements. However, these units also have a higher energy consumption, which is particularly counterproductive for electric vehicles, as it reduces their range.

[0006] When air is directed towards the edge of a room, a dead space often forms in the existing air outlets, where the airflow stagnates and cannot escape. This leads to turbulence and increased pressure loss, which should be minimized and ideally avoided altogether. A high pressure loss can result in increased ventilation noise and negatively impacts the ventilation system's effectiveness.

[0007] From JP 2004 034 776 A, an air outlet register or diffuser for regulating airflow in a vehicle is known. The diffuser has a lamella arranged adjacent to an inner wall of the diffuser, which has a front section facing a target area and a rear section connected to the front section via a hinge and facing away from the target area. The front and rear sections are connected by a cam, which prevents airflows between the lamellae from deflecting each other. This arrangement does not prevent a dead space.

[0008] From DE 10 2012 015 519 A1, an air outlet with several louvers is known, wherein the louvers do not have pivotable front and rear sections relative to each other. One end has a cranked section. The louvers are intended to focus the airflow.

[0009] Furthermore, DE 10 2024 110 832 A1 discloses an exhaust airer with two opposing inner walls whose curvature is adjustable. For this purpose, the inner walls are constructed from several parts that can be pivoted relative to each other.

[0010] One object of the present invention is therefore to provide an outlet of the type mentioned above and a vehicle with such an outlet, whereby a largely unimpeded and safe guidance of a fluid medium through the outlet and an energy-saving operation of a vehicle is made possible with structurally simple means.

[0011] Another object of the present invention is to specify an alternative diffuser and an alternative vehicle.

[0012] According to the invention, the foregoing problems are solved by an air outlet having the features of claim 1 and by a vehicle having the features of claim 10.

[0013] The inventive diffuser according to claim 1 is characterized in that the rear section in the area of ​​an end of the rear section facing away from the 1st joint is pivotably mounted in the area of ​​the inner wall via a 2nd joint in such a way that, in a pivoted state of the front section of the lamella towards the inner wall, the formation of a dead space between the lamella and the inner wall for fluid medium flowing through the passage space is largely prevented.

[0014] Furthermore, the vehicle according to the invention is characterized in that it has an air outlet according to one of claims 1 to 9, as claimed in claim 10.

[0015] In accordance with the invention, it has first been recognized that the aforementioned problems can be solved in a surprisingly simple manner by cleverly designing the lamella arranged adjacent to the inner wall. Specifically, in a further aspect of the invention, the rear section is pivotably mounted at an end opposite the first hinge via a second hinge in the region of the inner wall. This pivotable mounting via the second hinge is implemented such that, in a pivoted position of the front section of the lamella towards the inner wall, the formation of a dead space between the lamella and the inner wall for fluid flowing through the passage is largely prevented.The rear section ensures that the fluid flowing through the passage is reliably guided along its path, thus largely preventing the formation of a dead space between the louver and the inner wall. Turbulence and the resulting pressure drop, along with increased ventilation noise, are thereby reduced or almost completely eliminated. As a result, the effectiveness of the ventilation is not negatively affected.

[0016] Consequently, the inventive diffuser and the inventive vehicle are defined as a diffuser and a vehicle which enable a largely unimpeded and safe guidance of a fluid medium through the diffuser and an energy-saving operation of a vehicle with structurally simple means.

[0017] According to an advantageous embodiment of the invention, the rear section, when the front section of the lamella is pivoted towards the inner wall, can be arranged such that the rear section directs the fluid medium flowing through the passage away from the inner wall to prevent dead space. This ensures a particularly unimpeded and reliable flow path for the fluid medium through the passage.

[0018] According to a further advantageous embodiment, the vertical or horizontal axis can form a pivot bearing for the at least one lamella, which is fixed in position relative to the passage or the inner wall. This ensures a reliable pivoting movement of the lamella relative to the passage or relative to the inner wall and thus reliable operation of the diffuser.

[0019] According to a further advantageous embodiment, the second joint can be arranged closer to the inner wall than the first joint. This reliably ensures that the rear section pivots as required around both the first and second joints as soon as the front section pivots towards the inner wall to achieve a desired flow direction for the fluid medium.

[0020] According to a further advantageous embodiment, the second joint can form a pivot bearing for the rear section of the lamella that is fixed in position relative to the passage or the inner wall. This also ensures that the rear section pivots as required about both the first and the second joint as soon as the front section pivots towards or away from the inner wall.

[0021] According to an alternative, advantageous embodiment to the aforementioned further development, the second joint can be slidably mounted in a guide device. When the front section of the lamella pivots, not only does the rear section of the lamella pivot about the second joint, but a displacement of the second joint within the guide device is also triggered. As a result, this also ensures suitable positioning of the rear section of the lamella when the front section pivots, in order to reliably guide the fluid medium through the passage without creating a pressure loss and / or dead space.

[0022] In a further advantageous embodiment, the guide device can have a rail in which the second joint is slidably mounted. This ensures particularly secure guidance of the second joint when the front section of the lamella pivots. Furthermore, with regard to suitable positioning of the rear section and thus with regard to secure guidance of the fluid medium, the rail can be arranged essentially parallel to the inner wall.

[0023] According to a further advantageous embodiment, the first joint can have a tolerance compensation mechanism. Such a tolerance compensation mechanism enables a reliable and stress-free pivoting movement between the front and rear sections of the lamella. This tolerance compensation mechanism can, in a structurally simple manner, allow for a relative displacement of the front and rear sections relative to each other during a pivoting movement between the front and rear sections, in order to ensure the reliable function of the first joint and thus of the entire diffuser.

[0024] In a further advantageous embodiment, the cross-section of the passage can be continuously or stepwise increasing in the direction of the target area. This can create an expanded region. Such a design helps to avoid or reduce dead space and allows for particularly unimpeded flow of the fluid medium, since the second joint can be located in a region of increasing cross-section or in the expanded region, and thus particularly far into a boundary region or even outside an original cross-section or inlet cross-section of the passage. In a structurally particularly simple and therefore advantageous way, the passage can be designed as a funnel opening towards the target area.

[0025] Further important features and advantages of the invention will become apparent from the dependent claims, the drawings and the accompanying description of the figures.

[0026] It is understood that the features mentioned above and those to be explained below can be used not only in the combinations specified, but also in other combinations or on their own, without leaving the scope of the present invention.

[0027] Preferred embodiments and configurations of the present invention are shown in the drawings and are explained in more detail in the following description.

[0028] This shows Fig. 1 in a schematic diagram, an exhaust nozzle known from the prior art, Fig. 2 in two schematic representations, cut away, an air outlet known from the prior art, one with non-pivoted lamellae and the other with pivoted lamellae, Fig. 3 in two schematic representations, cut away, a first embodiment of an air outlet according to the invention, on the one hand with non-pivoted lamellae and on the other hand with pivoted lamellae, and Fig. 4 in two schematic representations, cut away, a second embodiment of an air outlet according to the invention, on the one hand with non-pivoted lamellae and on the other hand with pivoted lamellae.

[0029] Fig. Figure 1 shows a schematic representation of a prior art air outlet for guiding air with vertical louvers 4 pivotably mounted about vertical axes and with horizontal louvers 4 pivotably mounted about horizontal axes.

[0030] Fig. Figure 2 shows, in two schematic, cross-sectional views, another air outlet known from the prior art for guiding air, which is guided from an air supply device (not shown here) through a passage 1 into a target area (also not shown here), for example, into the interior of a vehicle. The passage 1 has an inner wall 2 and three louvers 4 arranged in the passage 1 and pivotably mounted about a vertical axis 3 to define a flow direction for the air flowing through the passage 1 towards the target area. Fig. For the sake of simplicity, Figure 2 shows an example of an air outlet with exclusively vertical axes 3 and therefore vertical louvers 4. The problem shown below and the described invention can be applied in the same way to a design with additionally or alternatively implemented horizontal axes and thus horizontal louvers.

[0031] In the left area of ​​the Fig. Figure 2 shows a situation with the louvers 4 not pivoted. The airflow, indicated by an arrow 5 and coming from the supply device, is not deflected by the louvers 4 and can flow essentially unhindered and undeflected into the target area, as shown by four arrows 6. A baffle 7 is arranged at the end of the passage 1 facing the target area.

[0032] In the right area of ​​the Fig. Figure 2 depicts a situation in which the slats 4 face the inner wall 2 of the passageway 1 - in the Fig. 2 to the right - are pivoted to deflect the airflow directed into passage 1 according to arrow 5 to the right according to arrows 6. It can be seen that the in the Fig. The lamella 4, shown on the right and arranged adjacent to the inner wall 2, forms a dead space 8 together with the inner wall 2 in this pivoted state, in which turbulence is generated in the air entering the passage 1. The turbulence is represented by curved arrows 9. This dead space 8 results in a high pressure drop and increased ventilation noise, thus negatively affecting the effectiveness of the ventilation.

[0033] The Fig. 3 and Fig. Figures 4 each show embodiments of the exhaust diffusers according to the invention. The figures show Fig. 3 and Fig. 4 each in two schematic representations, cut away, a first and a second embodiment of an outflower according to the invention, namely in the respective left area of ​​the Fig. 3 and Fig. 4 with non-swiveled slats and in the respective right area of ​​the Fig. 3 and Fig. 4 with swiveling louvers.

[0034] In the Fig. 3 and Fig. 4. Elements will be added that correspond to the elements in Fig. 2 correspond, marked with the same reference symbols, so that the figure description also serves to explain them. Fig. 2 can be used.

[0035] At the in Fig. In the first embodiment of the invention shown in Figure 3, three lamellae 4 are realized, wherein the two outer lamellae 4, arranged adjacent to the inner wall 2, each have a front section 10 facing the target area and a rear section 11 facing away from the target area. The front section 10 and the rear section 11 are connected to each other via a first joint 12 and are pivotable relative to each other.

[0036] Furthermore, the rear section 11 is pivotably mounted at its end opposite the first joint 12 via a second joint 13 located in the area of ​​the inner wall 2. The second joint 13 is located closer to the inner wall 2 than the first joint 12 and is fixed in position relative to the passage 1 or the inner wall 2. The pivotable mounting of the rear section 11 via the second joint 13 is implemented such that, in a pivoted position of the front section 10 towards the inner wall 2, the lamella 4 – see the right-hand area of ​​the Fig. 3 - the formation of a dead space between the lamella 4 and the inner wall 2 in the right-hand area of ​​the passage 1 for fluid medium flowing through the passage 1 – here air – is largely prevented. Consequently, pressure losses when air flows through the passage 1 can be essentially prevented.

[0037] In the left area of ​​the Fig. 3. The front sections 10 of the outer lamellae 4 are arranged in a central position parallel to arrow 5, which represents an undeflected flow direction through the passage 1. If the front sections 10, as in the right area of ​​the Fig. As shown in Figure 3, when the rear section 11 is pivoted from the central position around axis 3 towards the inner wall 2, it pivots clockwise around both the first joint 12 and the second joint 13. In this pivoted position, the rear section 11 can reliably direct the airflow away from the inner wall 2, preventing any dead space from forming. When the front sections 10 return to the position shown in the left area of ​​the Fig. When the middle section 11 is pivoted back to the position shown in Figure 3, it pivots counterclockwise around both the first joint 12 and the second joint 13. The front sections 10 can be pivoted to the left around axis 3 from the middle position in a corresponding manner, whereby even in such a pivoted position (not shown here), the formation of a dead space – then in the left area of ​​the passageway 1 – is largely prevented.

[0038] To ensure unimpeded pivoting movement between front section 10 and rear section 11, the 1st joint 12 has a tolerance compensation.

[0039] In this embodiment, the cross-section of the passage 1 gradually increases in size towards the target area, so that after a section of the passage 1 into which the air enters, an expanded section 14 is realized in which the second hinge 13 is located. Consequently, the passage 1 is essentially designed as a funnel opening towards the target area.

[0040] At the in Fig. In the second embodiment of the invention shown in Figure 4, three lamellae 4 are also realized, as in the embodiment shown previously, wherein the two outer lamellae 4, arranged adjacent to the inner wall 2, each have a front section 10 facing the target area and a rear section 11 facing away from the target area. The front section 10 and the rear section 11 are connected to each other via a first joint 12 and are pivotable relative to each other.

[0041] Furthermore, the rear section 11 is pivotably mounted at an end of the rear section 11 facing away from the first joint 12 via a second joint 13 arranged in the area of ​​the inner wall 2, wherein – in contrast to the Fig. In the embodiment shown in Figure 3, the joint 13 is slidably mounted in a guide device designed as a rail 15. The rail 15 is fixed relative to the passage 1 and the inner wall 2. Due to this design, the first joint 12 does not require any tolerance compensation. The necessary tolerance compensation is provided by the slidability of the second joint 13 in the rail 15.

[0042] In this embodiment, the second joint 13 is also arranged closer to the inner wall 2 than the first joint 12. The pivotable mounting of the rear section 11 via the second joint 13 is implemented such that, in a pivoted state of the front section 10 of the lamella 4 – see the right area of ​​the Fig. 4 - The formation of a dead space between the lamella 4 and the inner wall 2 in the right-hand area of ​​the passage 1 for fluid medium flowing through the passage 1 – in this case, air – is largely prevented. Consequently, pressure losses when air flows through the passage 1 can be essentially prevented.

[0043] In the left area of ​​the Fig. 4 The front sections 10 of the outer lamellae 4 are arranged in a central position parallel to arrow 5, which represents an undeflected flow direction through the passage 1. If the front sections 10, as in the right area of ​​the Fig. As shown in Figure 4, when the rear section 11 is pivoted from its central position about axis 3 towards the inner wall 2, it pivots clockwise about both the first joint 12 and the second joint 13. The second joint 13, located in the right-hand area of ​​the passage 1, moves within the rail 15 towards the target area. Simultaneously, the second joint 13, located opposite in the left-hand area of ​​the passage 1, moves away from the target area within the rail 15. In this pivoted position, the rear section 11 can reliably direct airflow away from the inner wall 2, just as in the unpivoted position, thus preventing any dead space from forming. When the front sections 10 return to their positions in the left-hand area of ​​the Fig. When the middle section 11 is pivoted back to the position shown in Figure 4, it pivots counterclockwise around both the first joint 12 and the second joint 13. The front sections 10 can be pivoted to the left from the middle position in a corresponding manner, whereby even in such a pivoted position (not shown here), the formation of a dead space – then in the left area of ​​the passageway 1 – is largely prevented.

[0044] In this embodiment, both in the unpivoted middle position and in the pivoted position of the front section 10, a small amount of air passes between the rail 15 and the inner wall 2 to the target area, as shown by the arrows 6 shown there.

[0045] In principle, in both described embodiments, both the 1st joint 12 and the 2nd joint 13 are designed as pivot bearings.

[0046] By using such external louvers 4 consisting of two parts formed by the front section 10 and the rear section 11, which are connected by a 1st joint 12, dead spaces 8 in the airflow can be largely reduced or avoided.

[0047] After the Fig. 3 and Fig. The two lamella elements – front section 10 and rear section 11 – are connected to each other via a first joint 12. Both the front section 10 and the rear section 11 of the lamella 4 are rotatably mounted in the passage 1 of the outlet, which serves as the housing, via a fixed bearing – the axis 3. The front section 10 rotates or directs the airflow in a desired direction, as in a conventional outlet. The rear section 11 ensures that the airflow is directed away from an area where a dead space typically forms.

[0048] The invention can be used for both vertical and horizontal louvers. For the sake of simplicity, the figures illustrate the invention only using the example of vertical louvers. A funnel geometry of the housing or passage space 1 helps to avoid a dead space 8.

[0049] The two-part louvers 4 eliminate or at least significantly reduce the dead space 8 inherent in the previous design. This saves energy during ventilation, which particularly benefits the range of electric vehicles. Furthermore, ventilation noise can be reduced.

[0050] If, for reasons of spatial constraints, a cross-sectionally widening shape or a funnel shape of the housing or the passage space 1 is not possible, the rear section 11 of the lamella 4 can be - as in Fig.4 shown - guided in a rail 15. The rear section 11 is thus mounted rotationally and translationally, which also largely prevents the formation of a dead space 8.

[0051] In summary, the present invention has at least one of the following advantages and / or provides the following features: - To prevent pressure loss as much as possible during flow through passage space 1. - Reduction of turbulence in passageway 1. - Reduction of ventilation noise. - Increasing the range of a vehicle designed as an electric vehicle.

[0052] Although the present invention has been described with reference to preferred embodiments, it is not limited to these, but can be modified in many ways. Reference symbol list 1 passageway 2 Inner wall 3-axis 4 slats 5 Arrow 6 Arrow 7 aperture 8 Dead space 9 Arrow 10 front section 11 rear section 12 1. Joint 13 2nd joint 14 extended area 15 rail QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 2004 034 776 A

[0007] DE 10 2012 015 519 A1

[0008] DE 10 2024 110 832 A1

[0009]

Claims

[1] Outlet for guiding a fluid medium, in particular air, from a supply device for the fluid medium into a target area, wherein the outlet has a passage space (1) with an inner wall (2) and at least one lamella (4) arranged in the passage space (1) and pivotably mounted about a vertical or horizontal axis (3) for specifying a flow direction for fluid medium flowing through the passage space (1) towards the target area and wherein a lamella (4) arranged adjacent to the inner wall (2) has a front section (10) facing the target area and a rear section (11) connected to the front section (10) via a 1st joint (12) and facing away from the target area, characterized by, that the rear section (11) is pivotably mounted in the area of ​​the inner wall (2) via a 2nd joint (13) at an end of the rear section (11) facing away from the 1st joint (12) such that in a pivoted state of the front section (10) of the lamella (4) the formation of a dead space (8) between the lamella (4) and the inner wall (2) for fluid medium flowing through the passage space (1) is largely prevented. [2] Outlet according to claim 1, characterized by , that the rear section (11) in the pivoted state of the front section (10) of the lamella (4) is arranged such that the rear section (11) directs fluid medium flowing through the passage space (1) away from the inner wall (2) to prevent the dead space (8). [3] Outlet according to claim 1 or 2, characterized by, that the vertical or horizontal axis (3) forms a pivot bearing fixed in position with respect to the passage space (1) or the inner wall (2) for the at least one lamella (4). [4] Outlet according to any one of claims 1 to 3, characterized by , that the 2nd joint (13) is located closer to the inner wall (2) than the 1st joint (12). [5] Diffuser according to any one of claims 1 to 4, characterized by , that the 2nd joint (13) forms a pivot bearing fixed in position with respect to the passage space (1) or the inner wall (2) for the rear section (11) of the lamella (4). [6] Diffuser according to any one of claims 1 to 4, characterized by , that the 2nd joint (13) is slidably mounted in a guide device. [7] Outlet according to claim 6, characterized bythat the guide device has a rail (15) in which the 2nd joint (13) is slidably mounted, wherein preferably the rail (15) is arranged substantially parallel to the inner wall (2). [8] Outlet according to any one of claims 1 to 7, characterized by , that the 1st joint (12) has a tolerance compensation. [9] Diffuser according to any one of claims 1 to 8, characterized by , that a cross-section of the passage space (1) is formed that increases continuously or stepwise in the direction of the target area, wherein preferably the passage space (1) is formed as a funnel opening towards the target area. [10] Vehicle with an air outlet according to any one of claims 1 to 9.

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