VENTILATION OUTLET, VENTILATION SYSTEM AND MOTOR VEHICLE

Abstract

A ventilation outlet for a ventilation system of a motor vehicle for directionally supplying a passenger compartment of the motor vehicle with an air flow flowing in a flow direction, having a ventilation duct for passing the air flow, with a duct wall for circumferentially delimiting the ventilation duct and a ventilation duct outlet opening for discharging the air flow into the passenger compartment, and a first air guide louver arranged in the ventilation duct and having a louver head portion and a louver head portion for deflecting the air flow, wherein the first air guide louver is held pivotably relative to the ventilation duct about a pivot axis between a first position and a second position, wherein the pivot axis runs through the louver head portion and is arranged adjacent to the ventilation duct outlet opening.

Claims

1. A ventilation outlet for a ventilation system of a motor vehicle for directionally supplying a passenger compartment of the motor vehicle with an air flow flowing in a flow direction, the ventilation outlet comprising: a ventilation duct to pass the air flow; a duct wall to circumferentially delimit the ventilation duct; a ventilation duct outlet opening to discharge the air flow into the passenger compartment; and a first air guide louver arranged in the ventilation duct, the first air guide louver having a louver head portion and a louver body portion for deflecting the air flow, wherein the first air guide louver is held pivotably relative to the ventilation duct about a pivot axis between a first position and a second position, wherein the pivot axis runs through the louver head portion and is arranged adjacent to the ventilation duct outlet opening, wherein the louver head portion is formed in the first position of the first air guide louver, in cooperation with a first wall section of the duct wall, to form a gap with a first gap width or no gap, and in the second position of the first air guide louver, in cooperation with the first wall section of the duct wall, to form a gap for passing a secondary air flow with a second gap width, and wherein the first gap width is less than the second gap width.

2. The ventilation outlet according to claim 1, wherein the louver head portion is formed such that the first gap width is between 0.3 mm and 0.7 mm.

3. The ventilation outlet according to claim 1, wherein the louver head portion is formed in such a way that the second gap width is between 2 mm and 5 mm.

4. The ventilation outlet according to claim 1, wherein the first air guide louver is held on the duct wall such that it is adapted to be pivoted about the pivot axis.

5. The ventilation outlet according to claim 1, wherein the ventilation outlet has at least one second air guide louver, and wherein the at least one second air guide louver is at a greater distance from the first wall section than the first air guide louver.

6. The ventilation outlet according to claim 5, wherein the first air guide louver and the at least one second air guide louver are designed for simultaneous pivoting with different pivoting speeds and/or pivoting directions.

7. The ventilation outlet according to claim 1, wherein the first air guide louver in the first position is arranged parallel or at least substantially parallel to the longitudinal extension of the ventilation duct.

8. The ventilation outlet according to claim 1, wherein, in the second position, the first air guide louver has an angle of incidence of between 30° and 60° with respect to the longitudinal extent of the ventilation duct.

9. A ventilation system for a motor vehicle for ventilating a passenger compartment of the motor vehicle with an air flow, the ventilation system comprising: a blower device for generating an air flow flowing in a flow direction; and a ventilation outlet according to claim 1 for discharging the air flow into the passenger compartment.

10. A motor vehicle comprising: a ventilation system for ventilating a passenger compartment of the motor vehicle with an air flow, wherein the ventilation system is the ventilation system according to claim 9.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus, are not limitive of the present invention, and wherein:

[0030] FIG. 1 is a sectional view of a ventilation outlet according to the prior art;

[0031] FIG. 2 is a sectional view of a ventilation outlet according to an exemplary embodiment of the invention in a first position,

[0032] FIG. 3 is a sectional view of the ventilation outlet of FIG. 2 in a second position,

[0033] FIG. 4 is a sectional view of a ventilation outlet according to an exemplary embodiment of the invention in a first position,

[0034] FIG. 5 is a side view of a motor vehicle according to an exemplary embodiment of the invention.

DETAILED DESCRIPTION

[0035] FIG. 1 schematically shows a ventilation outlet 1 according to the state of the art in a sectional view. The ventilation outlet 1 has a ventilation duct 5 formed by a duct wall 6 with a ventilation duct outlet opening 7. A second air guide louver 12 is arranged in the ventilation duct 5 for diverting an air flow L flowing through the ventilation duct 5. The second air guide louver 12 is mounted so as to be pivotable about a pivot axis A. In the illustrated position of the second air guide louver 12, the air flow L flows predominantly in a horizontal flow direction S. In the region of a first wall section 6a at the ventilation duct outlet opening 7, a partial air flow T of the air flow L rests against the duct wall 6 and is thus deflected from the rest of the air flow L in an undesirable manner.

[0036] FIG. 2 schematically shows a ventilation outlet 1 according to a preferred first embodiment of the invention in a first position S1 in a sectional view. The ventilation outlet 1 has a ventilation duct 5 formed by a duct wall 6 with a ventilation duct outlet opening 7. A first air guide louver 8 is arranged in the ventilation duct 5 for deflecting an air flow L flowing through the ventilation duct 5. The first air guide louver 8 has a louver head portion 9 and a louver body portion 10 and is pivotally mounted about a pivot axis A extending through the louver head portion 9. In this figure, the first air guide louver 8 is arranged in a first position S1, in which the air flow L flows in a horizontal flow direction S. The louver head portion 9 is arranged adjacent to a first wall section 6a of the duct wall 6. In the first position S1, a gap 11 with a first gap width B1 is formed between the louver head portion 9 and the first wall section 6a. In the region of the first wall section 6a at the ventilation duct outlet opening 7, a partial air flow T of the air flow L rests against the duct wall 6 and is thus deflected from the remaining air flow L in an undesirable manner.

[0037] In FIG. 3, the ventilation outlet 1 from FIG. 2 is shown schematically in a second position S2 in a sectional view. In the second position S2, the first air guide louver 8 is pivoted about the pivot axis A in such a way that the first air guide louver 8 has an angle of incidence W with respect to the longitudinal extent of the ventilation duct 5. Due to the formation of the louver head portion 9, a gap 11 with a second gap width B2 is formed in the second position S2 between the louver head portion 9 and the first wall section 6a of the duct wall 6, wherein the second gap width B2 is greater than the first gap width B1. Due to the alignment of the first air guide louver 8 with respect to the air flow L and the size of the second gap width B2, a secondary air flow N flows through the gap 11. The secondary air flow N is weak in relation to the air flow L and prevents the air flow L or at least partial air flow T (cf. FIG. 2) from contacting the duct wall 6 in the region of the first wall section 6a at the ventilation duct outlet opening 7.

[0038] FIG. 4 shows a ventilation outlet 1 according to a preferred second embodiment of the invention in the first position S1 schematically in a sectional view. The ventilation outlet 1 according to the preferred second embodiment of the invention differs from the ventilation outlet 1 according to the preferred first embodiment of the invention shown in FIG. 2 and FIG. 3 in an additional second air guide louver 12, which is arranged in the interior of the ventilation duct 5 and is mounted so as to be pivotable about a pivot axis A. By means of the first air guide louver 8 and second air guide louver 12, a more precise deflection of the air flow L is ensured.

[0039] FIG. 5 illustrates a motor vehicle 3 according to a preferred embodiment of the invention schematically in a side view. The motor vehicle 3 has a passenger compartment 4 surrounded by a body 16. Furthermore, the motor vehicle 3 has a ventilation system 2 according to the invention with an air inlet 14 for admitting fresh air, a filter device 15 for filtering the fresh air, a blower device 13 for generating the air flow L and a ventilation outlet 1 according to the invention for directionally supplying the passenger compartment 4 with an air flow L flowing in a flow direction S.

[0040] The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are to be included within the scope of the following claims.