CN111098671B

CN111098671B - Air outlet for ventilating an interior of a motor vehicle

Info

Publication number: CN111098671B
Application number: CN201911037475.7A
Authority: CN
Inventors: F.沙尔
Original assignee: Fischer Automotive Systems GmbH and Co KG
Current assignee: Fischer Automotive Systems GmbH and Co KG
Priority date: 2018-10-29
Filing date: 2019-10-29
Publication date: 2023-06-02
Anticipated expiration: 2039-10-29
Also published as: DE102019115282A1; CN111098671A; CN111098670A; CN111098670B; DE102019115285A1

Abstract

The invention relates to an air outlet (1) for ventilating an interior (6) of a motor vehicle, comprising a housing (2). Furthermore, the air outlet (1) comprises a control flap (16) which is arranged in a movable manner in the flow channel (10) and with which the direction of the air flow at the air outlet end (5) can be controlled. The air outlet (1) according to the invention is characterized in that the control flap (16) is mounted on the housing (10).

Description

Air outlet for ventilating an interior of a motor vehicle

Technical Field

The invention relates to an air outlet for ventilating an interior of a motor vehicle.

Background

DE 102015017009B4 discloses an air outlet of this generic type, through which an air flow passes from the ventilation system of the motor vehicle to the interior of the motor vehicle. The air outlet disclosed by this patent document is configured as a so-called circular nozzle having a guide section which is rotationally symmetrical about the central axis of the air outlet, which guide section widens first in the flow direction and then narrows again towards the air outlet end of the air outlet. In the guide section, a pressure body having two wing elements is arranged, which is circulated in the flow direction by the air flow and can rotate about a rotational axis, wherein in the disclosed air outlet the rotational axis and the central axis are identical. The control flap is fastened to the press body in a manner rotatable about a pivot axis and pivotable relative to the press body. The pivot axis extends transversely to the rotation axis, here perpendicularly thereto. The control flap can be rotated together with the press body about the axis of rotation, so that the distribution and direction of the air flow in the guide section can be controlled in either direction by means of the control flap. The control flap is supported indirectly via the pressure body on a rotary bearing, which in turn is connected via ribs to the housing of the air outlet.

Disclosure of Invention

The object of the invention is to provide an alternative air outlet.

According to the invention, an air outlet for ventilating an interior space of a motor vehicle is provided. The air outlet according to the invention has a housing which forms a flow channel in which an air flow flows in a flow direction from an air inlet end through which the air flow enters the air outlet to an air outlet end through which the air flow flows out of the air outlet. The housing has an inner wall along which an air flow moves and is directed. In order to be able to deflect the air flow by means of a control element spaced apart from the escape section in such a way that the air beam enters the interior in the desired direction, the housing has a guide section in which the flow channel widens in the flow direction first in a widening section and then narrows again in a narrowing section. This guide section can be rotationally symmetrical about the central axis of the air outlet. In particular, the rear end of the guide section in the flow direction forms an outlet end through which the air flow escapes into the interior space in the desired direction. In order to control the air flow in the guide section and thus also the direction of the air flow when it escapes into the interior, a control flap is movably arranged in the flow channel. The control flap is arranged in the flow channel upstream of the constriction section in the flow direction. "upstream" or "forward" refers here and in the following to the portion of the body that is circulated, as seen from the inlet end, temporally before the end of the body that is located on the opposite side of the body in the flow direction and forms the "rear" end of the body in the framework of the invention. The control flap is rotatable about a rotation axis extending in the flow direction and is pivotable about a pivot axis extending transversely to the rotation axis, so that the direction and distribution of the air flow in the guide section and thus the direction of the air flow flowing out through the outlet end can be controlled by means of the control flap. By "transverse" is meant here that the oscillation axis and the rotation axis enclose an angle of at least 45 °, in particular that the oscillation axis is orthogonal to the rotation axis. By "rotatable about an axis of rotation extending in the flow direction" is meant here that the control flap rotates in a circumferential direction relative to the inner wall of the flow channel. "circumferential" refers herein to the intersection of the inner wall of the housing with the plane of the oscillation axis. The axis of rotation does not therefore have to be mathematically exactly parallel to the direction of flow of the air flow in the cross section of the air outlet in which the control flap is rotatably supported.

The air outlet according to the invention is characterized in that the control flap is supported at the housing instead of at a press body arranged in the flow channel. According to the invention, neither the swivel bearing nor the pendulum bearing of the control flap is constructed at the circulated press body. By "circulated press body" is meant a body arranged in the flow channel, in particular in the centre of the flow channel and in particular in the guide section, which divides the air flow and/or in the air channel forces the air flow outwards from the centre towards the housing.

In particular, the control flap is rotatably mounted on the housing, in particular via a bearing element which is mounted in particular directly on the housing and forms a bearing with the housing, the control flap being rotatably and pivotably mounted on the bearing. In particular, the inner or outer wall of the housing can thus form part of the swivel bearing.

In particular, the air outlet according to the invention has precisely one rotatable and pivotable control flap as the only movable element for controlling the direction of the air flow in the flow channel. The control flap is in particular configured such that it cannot completely close the free flow cross section through which the air flow passes through the air outlet, so that it cannot completely interrupt the air flow. In this case, an additional closing element can be provided in or at the outlet opening in order to interrupt the air flow or to close the outlet opening. For example, the closing element can be configured as a flap, for example in the region of the inlet end, or as an axially displaceable pressure body in the region of the outlet end.

Preferably, a pressure body is arranged in the guide section, which reduces the free flow cross section of the flow channel in the guide section and displaces the air flow towards the inner wall of the housing. In particular, the press body is arranged essentially, in particular entirely, in the guide section. In this embodiment, however, the pivot axis of the control flap is spaced apart from the pressure body in the flow direction. In particular, the pivot axis of the control flap is arranged in front of the press body, i.e. the air flowing through the air outlet first flows past the pivot axis of the control flap and then only past the press body. The extrusion body can be configured, for example, rotationally symmetrical with respect to the central axis, so that it flows around in a circular nozzle. Alternatively, the extrusion body can divide the flow channel into a plurality of arms. The pressure body is arranged in particular rigidly in the flow channel, but is in particular displaceable in the flow direction and can in particular also be configured such that it closes the outlet end in the rear position, i.e. such that it acts as a closing element.

Furthermore, it is preferred that the control flap is not directly connected to the press body. In particular, the control flap is spaced apart from the press body in the flow direction, in particular, it is arranged in the flow channel in front of the press body. By "spaced apart" is meant herein that the control flap and the expression body are spatially separated such that the two components of the control flap and the expression body are two separate, not directly interconnected components of the air outlet. Rather, these components can be connected indirectly, for example via the housing. There is no direct connection between the control flap and the press body. The spatial separation of the control flap and the flow direction results in the air outlet according to the invention having a simple structure and ensuring that it is manufactured in a simple and cost-effective manner. In particular, the control flap is spaced apart from the front end of the pressure body in the flow direction in any position. Therefore, the rear end portion of the control flap is always located in front of the front end of the pressing body.

In a further preferred embodiment of the air outlet according to the invention, no pressing body is arranged in the guide section, in particular in the entire air outlet. In particular, in this case, only a control flap for controlling and guiding the air flow is arranged in the air outlet. This achieves a very simple construction of the air outlet while maintaining an effective control of the air flow.

The pivot axis of the control flap is preferably arranged in the inlet section upstream of the guide or at the transition from the inlet section to the guide section, whether or not a pressure body is arranged in the outlet. In contrast to a guide section having a cross section which varies in the flow direction by the formation of a widening section and a narrowing section, the inlet section has in particular a cross section which remains substantially unchanged in the flow direction, which at least relates to the cross section and the cross-sectional shape. In particular, the flow lines run essentially parallel in the entry section, but in the guide section run away from each other first in the widening section and run toward each other again in the subsequent anchoring section.

In addition, it is preferred that in the air outlet according to the invention, the control flap is a component of the control element, whether or not a pressure body is arranged in the air outlet, which component has a bearing element at which the control flap is supported. In particular, all components of the control element, except the control flap, are arranged close to the wall, i.e. in the region of the housing delimiting the inner wall of the flow channel, so that essentially only the control flap controls the air flow or influences its direction of the air flow in the outlet end.

Preferably, the bearing element has a guide ring which is guided at the housing, in particular at an inner wall and/or an outer wall of the housing, and which is movable relative to the housing about the rotational axis. The rotation about the rotation axis is in particular equivalent to a rotation in the circumferential direction, i.e. to a rotation along the inner wall and/or the outer wall of the flow channel. The pivot axis here lies in particular in a plane, on which the rotation axis forms a surface normal. The guide ring does not have to be completely closed. The guide ring is rotatable at the inner wall completely about the axis, i.e. rotatable by more than 360 ° or rotatable only locally, for example from 0 ° to 180 °

Preferably, the pivot axis of the control flap is formed by a pivot bearing which is arranged at the guide ring. The pivot bearing is formed in particular by a bushing, for example by a through-hole or blind hole in the opposite region of the guide ring, into which bushing the journal of the control flap engages.

In a preferred embodiment of the air outlet according to the invention, the housing has two parts, which are connected by the control element. In particular, in this case, the control element has an annular or tubular element into which two parts of the housing can be pushed, wherein the two parts are, for example, snapped into engagement with the control element, so that the control element can be rotated about the rotational axis relative to the part of the housing, but the control element is connected to the two parts in an axially fixed manner. For example, the control element connects the guide section and the access section, which can be manufactured separately from each other. By connecting the two parts of the housing with the control element, a very simple structure and cost-effective manufacture of the air outlet according to the invention can be achieved. In particular, a bearing element constructed at the control element serves to connect the two parts of the housing.

In particular, in the air outlet according to the invention, no movable means for controlling the air flow are arranged in the constriction section, in particular in the entire guide section. The outlet end can thus be configured freely, so that a round, round cross section is possible, but a non-round cross section is likewise possible. Thus, for example, oval or polygonal outlet ends are likewise possible, for example, arbitrary asymmetrical cross sections.

Drawings

The features and feature combinations, embodiments and configurations of the invention mentioned in the foregoing description and the features and feature combinations mentioned in the following description of the figures and/or shown in the figures can be used not only in the respectively described or shown combination, but also in any other combination in principle or alone. It is possible for embodiments of the invention to have not all the features of the dependent claims. Individual features of the claims can also be replaced by other disclosed features or by combinations of features. An implementation of the invention may not have all the features of an embodiment, but rather in principle any part of the features characteristic of an embodiment, if appropriate in combination with one, more or all the features of one or more further embodiments

Hereinafter, the present invention is explained in detail according to three embodiments shown in the drawings.

The drawings show:

FIG. 1 is a perspective view in full section of a first air outlet according to the present invention;

FIG. 2 is a side view of the cross-sectional view of FIG. 1;

FIG. 3 is a perspective view of the outlet end of the second outlet according to the present invention; and

fig. 4 is a side view in full section of a third air outlet according to the present invention.

Detailed Description

Fig. 1 and 2 show a first air outlet 1 according to the invention for ventilating an interior 6 of a motor vehicle. The air outlet 1 comprises a housing 2 having a first portion 2a and a second portion 2b, said first and second portions being connected by a control element 3. The first portion 2a of the housing 2 is arranged downstream of the second portion 2b of the housing 2 in the flow direction. That is, after the air flow has passed through the second portion 2b of the housing 2, this air flow passes through the first portion 2a. The air flow enters the air outlet 1 according to the invention through the air inlet end 4, passes through the housing 2 to the air outlet end 5, which forms the front end of the housing 2, which forms the flow channel 10 for the air flow, through which the air flow escapes from the air outlet 1 into the interior space 6. In the embodiment shown, the outlet end 5 has a circular cross section. The housing 2 has, starting from the inlet end 4 in the flow direction, first a connection section 7, with which connection section 7 the outlet opening 1 can be connected to a ventilation system of the motor vehicle (not shown). Adjacent to the connecting section 7 in the flow direction is an inlet section 8 in the form of a cylindrical tube, which has a circular cross section that remains unchanged. Downstream of the inlet section 8 in the flow direction, a guide section 9 is arranged in which the flow channel 10 initially widens in a widening section 11 and then narrows again in a narrowing section 12 toward the outlet end 5 and forms the outlet end 5. In the widening section 11, the air flow is deflected outwards away from the central axis L towards the inner wall 13 of the housing 2, while in the narrowing section 12 the air flow is deflected again towards the central axis L. In the guide section 9, a pressing body 14 is arranged, which is fixedly connected to the rib 15 and is connected in a non-displaceable manner to the inner wall 13 of the housing 2. The pressing body 14 reduces the free flow cross section of the flow channel 10 and presses the air flow in the widened section 11 outwardly away from the central axis L toward the inner wall 13. However, since the press body 14 already ends in front of the outlet end 5 at a distance therefrom and is inclined at its end facing the outlet end 5, it does not disturb the air flow in the region of the constriction section 12.

At the control element 3 which axially connects the two

parts

2a, 2b of the housing 2, a control flap 16 in the form of a flat sheet is arranged, which has a semi-elliptical plane. The control flap 16 is a component of the control element 3 and has two journals 17 projecting in opposite directions, which journals each engage into a bushing 18 arranged at a guide ring 20 of a bearing element 19. The journal 18 and the sleeve 19 together form a wobble bearing 21 for the control flap 16. The control flap 16 is therefore mounted on the bearing element 19 so as to be pivotable about a pivot axis S. The pivot axis S is defined by the pivot bearing 21, i.e. by the bearing structure of the journal 17 in the sleeve 18. The control element 3 is located together with the pivot axis S in the entry section 8, so that the arrangement of the press body 14 in the guide section 9 is not hindered.

The guide ring 20 of the bearing element 19 is arranged as an annular flat cylindrical ring between the two

parts

2a, 2b of the housing 2. At the guide ring 20, a cylindrical support section 22 is integrally formed radially outside, which likewise forms part of the bearing element 19. The support section 22 encloses the two

parts

2a, 2b at the

outer walls

23a, 23b of the two

parts

2a, 2b. The bearing element 19 axially connects the two

parts

2a, 2b of the housing. The

outer walls

23a, 23b of the

parts

2a, 2b of the housing 2 form together with the cylindrical section 21 a swivel bearing along which the guide ring 20 can swivel about a central axis L, which in this case forms the swivel axis D. The control flap 16 rotates with the guide ring 20 around the rotation axis D in the flow channel 10 as well. Furthermore, the control flap 16 is supported in the guide ring 20 so as to be pivotable in the bushing 18, so that the control flap 16 can pivot about a pivot axis S extending through the bushing 18. The oscillation axis S is perpendicular to the rotation axis D. The control flap 16 is thus supported directly at the housing 2 via the guide ring 20 or the bearing element 19.

A control flap 16 arranged in a movable manner in the flow channel 10 is used for controlling the air flow. The control flap is independent of the press body 14 and can rotate and oscillate relative to this press body. The control valve 16 is arranged in the flow channel 10 upstream of the constriction section 12 in the flow direction and at a distance from the pressure body 14, so that the pivot axis S of the control flap 16 is also spaced apart from the pressure body 14. The control flap 16 is also not directly connected to the pressure body 14, but is arranged completely independently of this pressure body at the bearing element 19.

By the spatial separation of the pressure body 14 and the control element 3, a simple construction can be achieved, and the air outlet 1 can be produced in a cost-effective manner. Nevertheless, by arranging the control flap 16 upstream of the constriction section 12 in a rotatable and swingable manner, a good control of the air flow in the flow channel 10 can still be achieved. It is also possible for the control flap 16 to be arranged directly upstream of the constriction section 12 or in the region of the transition into the constriction section 12.

The

air outlet

1, 101, 201 according to the invention is also distinguished in that the geometry of the

air outlet end

5, 105, 205 can be configured virtually independently of the

control element

3, 203, since no movable parts are arranged in the constriction section 12. The

outlet end

5, 205 can thus be configured, for example, as a circle, as in the case of the outlet openings 1, 201 in fig. 1, 2 and 4, or rather as a rectangle, as can be seen in the outlet opening 101 otherwise having the same structure as the outlet opening 1 in fig. 1 and 2, in the outlet opening of fig. 3, both the outlet end 105 and the rear part of the press body 114 have a non-circular, rather rectangular cross section.

In contrast to the air outlets 1, 101 shown in fig. 1 to 3, the air outlet 201 shown in fig. 4 is distinguished in particular in that no pressing bodies are arranged in the guide section 209 and in the remaining flow channels 210. Only the control element 203 with the control flap 216 is arranged to control the air flow in the flow channel 210. As a result, the control element 203 is displaced back in the flow direction towards the guide section 209, so that the control element 203 is arranged in the transition of the entry section 208 into the guide section 209. Thus, the air flow can be directly controlled as it enters the guiding section 209. Thus, the first portion 202a of the housing forms the guiding section 209, while the second portion 202b of the housing comprises the entry section 208. Even in this case, the air outlet is constituted by few members, so that the air outlet can be manufactured at a cost advantageous. If the air outlet has to be shortened due to the available installation space, the air outlet 201 can be shortened in the flow direction by displacing the control element 3 towards the guide section 9.

The actuation of the

control element

3, 203, in particular of the guide ring 20, 220 for rotating the

control flap

16, 216 about the rotation axis D, and of the

control flap

16, 216 for pivoting the

control flap

16, 216 of the

air outlet

1, 101, 201 according to the invention, can take place, for example, via a manually operable lever or in a motorized manner. For example, one of the journals 17 of the

control flap

16, 216 can be elongated away from the

flow channel

10, 110, 210, and at this elongation a gear or a transmission can be arranged, against which a motor or a toothed bar that can be operated from the interior space 6 acts for swinging the flap 16, 216 (not shown). Likewise, on the outside of the guide ring 20, teeth can be arranged which extend in the circumferential direction, into which teeth gears engage, which gears are connected to a motor or a lever transmission for adjusting the guide ring 20, 220 (also not shown).

The connection of the

first part

2a, 202a and the

second part

2b, 202b of the

housing

2, 102, 202 by means of the

control element

3, 203 of the

air outlet

1, 101, 201 according to the invention is not mandatory for the invention. The

housing

2, 102, 202 can also be produced in one piece, or the components of the housing can also be connected to one another by additional connecting means. Thus, two or more parts of the casing of the air outlet according to the invention can be screwed, glued, welded or connected together with a locking connection, wherein this list is exemplary and not exhaustive.

List of reference numerals

1. 101, 201 air outlet

2. 102, 202 shell

2a, 202a first part of the housing 2

2b, 202b second part of the housing 2

3. 203 control element

4. 104, 204 air inlet end

5. 105, 205 outlet end

6. Interior space

7. 207 connection section

8. 208 into the section

9. 209 guide section

10. 110, 210 flow channels

11. 211 widened section

12. 212 narrowing section

13. 113, 213 inner wall

14. 114 extrusion body

15. Ribs

16. 216 control valve

17. Journal of shaft

18. Shaft sleeve

19. 219 bearing component

20. 220 guide ring

21. 221 swing bearing

22. 222 support section

The outer wall of the

first part

2a, 202a of the 23a, 223a housing

The outer wall of the

second part

2b, 202b of the 23b, 223b housing

D axis of rotation

L central axis

And S swinging axis.

Claims

1. An air outlet (1, 101, 201) for ventilating an interior (6) of the motor vehicle,

the air outlet has a housing (2, 102, 202) which forms a flow channel (10, 110, 210) in which an air flow flows in a flow direction from an air inlet end (4, 104, 204) to an air outlet end (5, 105, 205), wherein the housing (2, 102, 202) has a guide section (9, 209) in which the flow channel (10, 110, 210) widens in the flow direction firstly in a widening section (11, 211) and then narrows in a narrowing section (12, 212), and

the air outlet has a control flap (16, 216) for controlling the air flow in the guide section (9, 209), which is arranged in a movable manner in a flow channel (10, 110, 210), wherein the control flap (16, 216) is arranged in the flow channel (10, 110, 210) upstream of the constriction section (12, 212) in the flow direction, is rotatable about a rotation axis (D) extending in the flow direction and is pivotable about a pivot axis (S) extending transversely to the rotation axis (D),

it is characterized in that the method comprises the steps of,

the control flap (16, 216) is supported at the housing (2, 102, 202).

2. The air outlet according to claim 1, characterized in that a pressing body (14, 114) is arranged in the guide section (9), which pressing body reduces the free flow cross section of the flow channel (10, 110) in the guide section (9), and in that the swivel axis (S) of the control flap (16) is spaced apart from the pressing body (14, 114) in the flow direction.

3. The air outlet according to claim 2, characterized in that the control flap (16) is not directly connected to the press body (14, 114).

4. The air outlet according to claim 1, characterized in that no pressing body is arranged in the guide section (209).

5. The air outlet according to claim 1, characterized in that the swivel axis (S) is arranged in the entry section (8, 208) in front of the guide section (9, 209) or at a transition from the entry section (8, 208) to the guide section (9, 209).

6. The air outlet according to claim 1, characterized in that the control flap (16, 216) is a component of a control element (3, 203) having a bearing element (19, 219) at which the control flap (16, 216) is supported.

7. The air outlet according to claim 6, characterized in that the bearing element (19, 219) has a guide ring (20, 220) which is guided at the housing (2, 102, 202) and is movable relative to the housing (2, 102, 202) about the axis of rotation (D).

8. The air outlet according to claim 7, characterized in that the oscillating bearing (21, 221) of the oscillating axis (S) is arranged at the guide ring (20, 220).

9. The air outlet according to claim 6, characterized in that the housing (2, 102, 202) has two parts (2 a, 202a, 2b, 202 b), which are connected by the control element (3, 203).

10. The outlet according to claim 1, characterized in that the outlet end (5, 105, 205) has a circular or non-circular cross section.