CN118288730A - Air distributor device for motor vehicle and motor vehicle - Google Patents

Abstract

The invention relates to an air distributor device for a motor vehicle, comprising a housing, a distributor drum, a first air channel and a second air channel, the housing having a housing cover wall, the distributor drum being supported in the housing cover wall, an opening being formed as an axial air inlet in a first end of the distributor drum, a first opening being formed as a radial first air outlet and a second opening being formed as a radial second air outlet in the cover wall of the distributor drum, the first and second air channels each having an inlet opening which opens into the housing through the housing cover wall, the first and second air outlets each being associable with or assigned to one of the inlet openings as a function of a rotational position of the distributor drum, at least one air channel having an outlet opening at an end of the end section facing away from the inlet opening, the cross section of the at least one air channel in the end section tapering in the direction of the outlet opening, the air channel having a channel wall, so that the outflow direction from the outlet opening can be adjusted as a function of the rotational position.

Description

Air distributor device for motor vehicle and motor vehicle

Technical Field

The invention relates to an air distributor device for a motor vehicle and a motor vehicle having such an air distributor device.

Background technique

Air distributor devices are known in the prior art, for example from publications DE 60 2005 000 821 T2 and DE 102019 206 851 A1, which can distribute the air flow to two independent outflow outlets by means of a flap element. The last-mentioned publication discloses a Y-shaped air duct device, which is connected to an air duct at an air conditioning device outlet and to exactly two other air ducts fluidically connected to the air duct at outflow outlets that can be assigned to or associated with the interior of a motor vehicle, and which has exactly one adjustable flap element for distributing the air flow from the air conditioning device outlet to the outflow outlets.

So-called flow-vectoring-outflow devices are also known, which have an air channel with an air-guiding element, which divides the air channel at least partially into two sub-channels in the direction from the inlet opening to the outlet opening, and the flow-vectoring-outflow device (Flow-Vectoring-Outflow Device) ) also has a reversible, in particular cylindrical segment-shaped airflow adjustment element or control element for distributing the airflow to the two sub-channels. For example, such outflow devices are disclosed in the publications DE 10 2016 225 128 A1, DE 10 2019 201 902 A1, EP 3 418 092 A1, EP 3 702 185 A1 and WO 2021/096 044 A1, which each have a radial air inlet and an air outlet associated with the airflow adjustment element.

Finally, air distributor devices are also known which each have an axial air inlet associated with an air flow control element and two or more radial air outlets. For example, publication DE 10 2016 202 573 A1 discloses an air distributor for an interior ventilation system of a motor vehicle, the air distributor having a distributor housing with a first, second and third air outlet, wherein at least one first, second and third cylinder segment rotatable about a common rotation axis in the distributor housing is configured such that the three air outlets can be closed in any combination by correspondingly rotating the three cylinder segments, and wherein the distributor housing has an air inlet in the axial direction of the cylinder segment.

Summary of the invention

The object of the present invention is to provide an improved air distributor device which ensures maximum flexibility in the distribution of the air flow between different outflow openings with low complexity and a small number of components.

The technical problem is solved according to the present invention by an air distributor device. According to the present invention, the air distributor device has a housing, a distributor drum, a first air channel and a second air channel, wherein the housing has a housing cover wall, wherein the distributor drum is rotatably supported about its longitudinal center axis in the housing cover wall, wherein an opening as an axial air inlet is formed in a first end side of the distributor drum, wherein a first opening as a radial first air outlet and a second opening as a radial second air outlet are formed in the cover wall of the distributor drum, wherein the first and second air channels each have an inlet opening, wherein these inlet openings pass through the housing cover wall into the housing, wherein the first and second air outlets can be respectively configured to or assigned to these inlet openings depending on the rotational position of the distributor drum. wherein at least one air channel has an outlet opening at the end of the end section facing away from the inlet opening In which, the cross section of at least one air channel in the end section gradually narrows (or tapers) in the direction of the outlet, and in which the air channel has a channel wall, which divides the air channel into two sub-channels along the longitudinal extension of the air channel from the inlet to the outlet, and the channel wall ends in the region of the end section, so that the outflow direction from the outlet can be adjusted according to the rotational position. The air flow can be distributed particularly advantageously between at least one air flow directional outflow device described at the beginning of this article, an air channel with two sub-channels, another outflow port and other air channels by the air distributor device according to the invention, and the air distributor device ensures maximum flexibility by only two air outlets. By configuring the air channel to the opening of the distributor drum according to the invention, an outflow port combination with advantageous structural space optimization is achieved. The distributor drum is used to a certain extent as a deflection device or control element for controlling the air flow to the air inlet. Except for the two air outlets, the cover wall is preferably constructed at least substantially closed in the remaining part. In particular, exactly two air outlets are provided. The air channel with two sub-channels, i.e. the outflow direction and air deflection of the air flow directional outflow device, is controlled according to the rotational position of the distributor drum. In the region of the end section, the sub-channels extend toward each other, for example, in a convergent manner, so as to achieve outflow directions opposite to each other. The outlet as the outflow outlet can be configured to or assigned to the interior space of the motor vehicle in particular. It is preferred to have multiple air channels, in particular three air channels. In order to adjust the rotational position of the distributor drum, the distributor drum is particularly equipped with an actuator. The actuator is particularly designed as a servo motor or a mechanical, particularly rotatable handle, such as a knob, an operating wheel, an operating roller or a sliding element.

According to a preferred embodiment of the invention, at least one inlet opening corresponds to at least one air outlet opening in shape and size. The advantage resulting from this is that the corresponding inlet opening and the corresponding air outlet opening completely overlap in the corresponding rotational position of the distributor drum.

It is particularly preferably provided that the outlet opening of at least one air channel is smaller than its corresponding inlet opening. As a result, the flow through the air channel can be optimized particularly advantageously.

According to a preferred embodiment of the invention, an air channel having two subchannels has at least one bend in at least one of the two subchannels, which leads to an outlet of the air channel. The bend can advantageously determine the outflow direction of the air flow from the respective subchannel. The air channel has bends in both subchannels, wherein the bends are preferably directed toward each other, thereby achieving outflow directions that are opposite to each other.

It is particularly preferred that the two subchannels are at least regionally parallel to one another. This advantageously ensures that the channel wall separating the two subchannels is geometrically particularly simple in design. The flow paths through the two subchannels preferably have at least approximately equal lengths.

According to a preferred embodiment of the invention, the distributor drum has a closed second end side and is rotatably mounted in or on the housing at the second end side, in particular at a pivot pin protruding axially from the end side. The advantage resulting from this is that the distributor drum is particularly securely and geometrically simple to fix in the housing.

It is particularly preferred that the distributor drum is designed as a cylinder. The cylindrical shape allows the connection of the air duct to be realized particularly simply geometrically. The distributor drum is therefore designed as a hollow cylinder.

According to a preferred further development of the invention, it is provided that the distributor drum is designed as a cone. The advantage resulting from the conical or conical shape of the distributor drum is that a particularly uniform air distribution along the axis of rotation of the distributor drum can be achieved.

It is particularly preferred that the first end side of the distributor drum has a larger diameter than the second end side of the distributor drum, wherein the angle between the longitudinal center axis and the housing wall, in particular in longitudinal section, is at least 3°. This advantageously ensures a particularly uniform distribution of the air flow.

According to a preferred further development of the invention, at least one air outlet is provided with at least one air guide element extending axially, radially and/or tangentially inside the distributor drum. The advantage resulting from the air guide element is that the air flow can be influenced precisely in a targeted manner. The air guide element has, for example, a projection, a ridge or a rib on the edge of the respective air outlet.

It is particularly preferred to provide a plurality of air guiding elements spaced apart from one another in the axial direction and/or tangential direction. The plurality of air guiding elements advantageously ensures that the air flow is influenced precisely over a greater surface portion of the respective air outlet, in particular over the entire surface of the respective air outlet.

According to a preferred extended design of the present invention, at least one air outlet is provided with at least one throttling element extending axially, radially and/or tangentially inside the distributor drum, which throttling element at least covers the air outlet in a regional manner. The advantage produced by the throttling element is that the air flow can be precisely influenced in a targeted manner.

It is particularly preferred that each of the two air channels has a channel wall which, along the longitudinal extension of the air channel from the inlet opening in the direction of the outlet opening, divides the air channel into two sub-channels, the channel wall terminating in the region of the end section. The two air channels are thus designed as air flow directional outflow devices and advantageously ensure that the outflow direction and air deflection are controlled for both air channels by the distributor drum.

According to the preferred extended design of the present invention, at least one of the air channels has at least one rigid or adjustable, especially flippable air guide element. In particular, a plurality of air guide elements are provided. The advantage generated by the air guide element is that the air flow is precisely affected. The air guide element is particularly assigned to the corresponding outlet so as to preset the direction of the air flow flowing out of the air channel. In order to adjust the air guide element, the air guide element is particularly equipped with an actuator. The actuator is particularly designed as a servo motor or a mechanical, especially rotatable handle, such as a knob, an operating wheel, an operating roller or a sliding element. The actuator is particularly preferably designed to adjust the rotational position of the distributor drum and the position, especially the rotational position, of one or more air guide elements. The actuator, for example, has a single-axis operating element for the distributor drum, such as an operating wheel and/or a sliding element for the air guide element, or a double-axis operating element, such as a roller, which is designed to transmit a rotational motion to the distributor drum and transmit an axial sliding motion to one or more air guide elements.

The motor vehicle according to the invention is characterized by an air distributor device according to the invention. This also results in the advantages already mentioned.

BRIEF DESCRIPTION OF THE DRAWINGS

In particular, further advantages and preferred features and feature combinations are obtained from the above description. The invention is further explained below with reference to the accompanying drawings. In the drawings:

FIG. 1 shows an advantageous air distributor arrangement;

2A to 2F show the air distributor device in different operating states;

FIG3 shows a first embodiment of a distributor drum of an air distributor device;

FIG4 shows a second embodiment of the dispenser drum;

FIG5 shows a third embodiment of a dispenser drum;

FIG6 shows a fourth embodiment of a dispenser drum; and

FIG. 7 shows a further embodiment of an air distributor device.

Detailed ways

FIG. 1 shows an advantageous air distributor device 1 for a motor vehicle. The air distributor device 1 has a housing 2. The housing 2 has a housing cover wall 3. The air distributor device 1 also has a distributor drum 4. The distributor drum 4 is rotatably mounted in the housing cover wall 3 about its longitudinal center axis 5. For this purpose, the housing cover wall 3 has a contour or shape corresponding to the distributor drum 4.

An opening 7 is formed as an axial air inlet 8 on the first end side 6 of the distributor drum 4. FIGS. 2A to 2F show how the air flow flowing into the air inlet 8 flows out again from the air distributor device 1. Each of the figures shows a different operating state of the air distributor device 1, wherein the operating states differ with regard to the rotational position of the distributor drum 4.

It can be seen that a first opening 10 and a second opening 11 are formed in the housing wall 9 of the distributor drum 4 as a first radial air outlet 12 and a second radial air outlet 13, respectively. The air distributor device 1 also has a first air channel 14 and a second air channel 15. The two air channels 14, 15 enclose an angle of at least 90°, here greater than 90°, with each other. The first air channel 14 has a first inlet opening 16 and the second air channel 15 has a second inlet opening 17. These inlet openings 16, 17 lead through the housing housing wall 3 into the housing 2.

Here, the first inlet opening 16 corresponds in size and shape at least to the first air outlet 12, in particular to the two air outlets 12, 13, and the second inlet opening 17 corresponds in size and shape at least to the second air outlet 13, in particular to the two air outlets 12, 13. Depending on the rotational position of the dispenser drum 4, the air outlets 12, 13 can each be assigned to or associated with one of the inlet openings 16, 17.

Furthermore, the first air channel 14 has a first outlet opening 18 and the second air channel 15 has a second outlet opening 19. The first outlet opening 18 is arranged at the end of a first end section 20 of the first air channel 14 facing away from the first inlet opening 16, and the second outlet opening 19 is arranged at the end of a second end section 21 of the second air channel 15 facing away from the second inlet opening 17.

Furthermore, the second air channel 15 is designed as an airflow directional outflow device. Here, the cross section of the second air channel 15 in the second end section 21 gradually narrows in the direction of the second outlet opening 19. The second air channel 15 has a channel wall 24, which divides the second air channel 15 into a first sub-channel 22 and a second sub-channel 23 along the longitudinal extension of the second air channel from the second inlet opening 17 in the direction of the second outlet opening 19. The channel wall 24 ends in the region of the second end section 21, so that the outflow direction from the second outlet opening 19 can be adjusted depending on the rotational position. The second outlet opening 19 is smaller than the second inlet opening 17.

The second air channel 15 has a bend in each of the two subchannels 22, 23 leading to the second outlet opening 19. In the rest, the two subchannels 22, 23 are designed parallel to each other. At least one, in particular, reversible air guide element 27 is arranged in each subchannel 22, 23. The first air channel 14 has rigid air guide elements 28 in its end section 20, wherein these air guide elements 27, 28 are oriented or can be oriented transversely relative to each other. Alternatively or additionally, the second air channel also has one or more, in particular, rigid air guide elements 29 in its end section 21, as shown in FIG.

2A , the second air outlet 13 is assigned to the second inlet 17 only in the region of the first subchannel 22, or the inlet 17 is completely open over the entire cross section of the subchannel 22, so that air flows only through the first subchannel 22 in the direction of the second outlet 19. The air flow is deflected by a corresponding bend in the region of the second end section 21, here downwards in the state of intended installation in a motor vehicle.

In the second rotational position of the distributor drum 4 shown in FIG. 2B , which is further rotated clockwise by a predetermined rotational angle compared to the first rotational position, the second air outlet 13 is assigned to the second inlet 17 in the region of the two sub-channels 22, 23, or the inlet 17 is completely open over the entire cross section of the two sub-channels 22, 23, so that air flows through the two sub-channels 22, 23 in the direction of the second outlet 19. The two partial air flows are first deflected by corresponding bends in the region of the second end section 21, and the two partial air flows merge with each other again in terms of flow technology at or near the second outlet 19, so that the deflections cancel each other out and the air flows out of the second outlet 19 in a straight line.

In the third rotational position of the dispenser drum 4 shown in FIG. 2C , which is further rotated clockwise by a predetermined rotational angle compared to the second rotational position, the second air outlet 13 is assigned to the second inlet 17 only in the region of the second subchannel 23, or the inlet 17 is completely open over the entire cross section of the subchannel 23, so that air flows only through the second subchannel 23 in the direction of the second outlet 19. The air flow is deflected by a corresponding bend in the region of the second end section 21, and in this case is deflected upwards in the state of being installed in the motor vehicle as intended.

In the fourth rotational position of the dispenser drum 4 shown in FIG2D , which is further rotated clockwise by a preset rotation angle compared to the third rotational position, the second air outlet 13 is only partially assigned to the second inlet 17 in the region of the second sub-channel 23, or the inlet 17 is only opened on a part of the cross section of the sub-channel 23, so only a part of the air flows through the second sub-channel 23 in the direction of the second outlet 19. At the same time, the first air outlet 12 is partially assigned to the first inlet 16, or the inlet 16 is opened on a part of the cross section of the first air channel 14, so another part or the remaining part of the air flows through the air channel 14 in the direction of the first outlet 18.

In the fifth rotational position of the dispenser drum 4 shown in Figure 2E, the fifth rotational position is further rotated clockwise by a preset rotation angle compared to the fourth rotational position, and the first air outlet 12 is completely assigned to the first inlet 16, or the inlet 16 is completely open over the entire cross-section of the first air channel 14, so that the air only flows through the first air channel 14 in the direction of the first outlet 18.

In the sixth rotational position of the distributor drum 4 shown in FIG. 2F , which is further rotated clockwise by a preset rotation angle compared to the fifth rotational position, no air outlets 12 , 13 are assigned to any of the inlet ports 16 , 17 , so that the two air channels 14 , 15 are completely closed or disconnected from the distributor drum 4 in terms of flow technology.

3, 4 and 5 show a first, second and third embodiment of a distributor drum 4 in a sectional view along the longitudinal center axis 5 at the level of the second air duct 15. The distributor drum 4 has a closed second end side 25 and is rotatably mounted in or on the housing 2 at the second end side 25, in this case on a pivot pin 26 protruding axially from the end side 25.

Arranged in the second air duct 15 are a plurality of, here foldable, air-guiding elements 27 , wherein each air-guiding element 27 has three positions in order to guide the air flow straight through or to deflect it to the left or to the right.

In Fig. 3, the distributor drum 4 is of conical or conical design. For this purpose, the first end side 6 has a larger diameter than the second end side 25. The angle α between the longitudinal center axis 5 and the housing wall 6 is in particular at least 3°. The main demoulding direction is indicated by an arrow.

In Fig. 4, the distributor drum 4 is cylindrical and has a plurality of throttle elements 31 in its at least one opening 10, 11, wherein one throttle element is designed in a ramp-shaped manner. These throttle elements 31 cover the corresponding gas outlets 12, 13 to a certain extent at least regionally, extend in the axial direction, radial direction and/or tangential direction of the distributor drum 4, and are arranged axially and/or tangentially spaced from each other.

5 , the distributor drum 4 is also cylindrical and has a plurality of air guiding elements 30 in its at least one opening 10, 11, which extend at least substantially radially and tangentially into the interior of the distributor drum 4. The air guiding elements 30 are arc-shaped and are arranged axially and/or tangentially, in particular evenly and spaced apart from one another.

FIG6 also shows a fourth embodiment of a distributor drum 4 in a sectional view similar to FIGS. 2A to 2F , wherein, in contrast to the third embodiment shown in FIG5 , the air guide element 30 extends at least substantially axially and radially into the interior of the distributor drum 4. It can be seen that the distributor drum 4 also has a convex projection 32 at the edge of the openings 10, 11, which likewise influences the air flow.

Finally, FIG. 7 shows a further embodiment of an air distributor device 1, in which, unlike before, not only one but two air flow directing outflow devices are provided, wherein the two air channels 14, 15 each have a channel wall 24 which, along the longitudinal extension of the air channels from the respective inlet opening 16, 17 in the direction of the respective outlet opening 18, 19, divides the air channels 14, 15 into two subchannels 22, 23, which end in the region of the respective end sections 20, 21. Each subchannel 22, 23 has an air guide element 27. This embodiment can be combined in particular with each distributor drum 4 shown in FIGS. 3 to 6.

Reference numerals list

1 Air distributor unit

2 Housing

3 Housing cover

4 Dispenser drum

5 Longitudinal centerline

6 First end side

7 Opening

8 Air Inlet

9 Cover wall

10 First Opening

11 Second Opening

12 First air outlet

13 Second air outlet

14 First air channel

15 Second air channel

16 First entrance

17 Second entrance

18 Exit 1

19 Second row exit

20 First end section

21 Second end section

22 First subchannel

23 Second subchannel

24 Channel wall

25 Second end side

26 Pivot pin

27 Air guide element

28 Air guide element

29 Air guide element

30 Air guide element

31 Throttle element

32 Raised part

Claims (15)

1. An air distributor device (1) for a motor vehicle, comprising a housing (2), a distributor drum (4), a first air channel (14) and a second air channel (15), - wherein the housing (2) has a housing cover wall (3), wherein the distributor drum (4) is mounted rotatably about its longitudinal center axis (5) in the housing wall (3), wherein an opening (7) is formed in a first end side (6) of the distributor drum (4) as an axial air inlet (8), wherein a first opening (10) as a radial first air outlet (12) and a second opening (11) as a radial second air outlet (13) are formed in the housing wall (9) of the distributor drum (4), - wherein the first and second air channels (14, 15) each have an inlet opening (16, 17), wherein the inlet openings (16, 17) open into the housing (2) through the housing cover wall (3), wherein the first and second air outlet openings (12, 13) can each be assigned to or associated with one of the inlet openings (16, 17) depending on the rotational position of the distributor drum (4), wherein at least one air channel (14, 15) has an outlet opening (18, 19) at the end of the end section (20, 21) facing away from the inlet opening (16, 17), wherein the cross section of at least one air channel (14, 15) in the end section (20, 21) tapers toward the outlet opening (18, 19), and - wherein the air channel (14, 15) has a channel wall (24), which divides the air channel (14, 15) into two sub-channels (22, 23) along the longitudinal extension of the air channel from the inlet opening (16, 17) in the direction of the outlet opening (18, 19), and the channel wall ends in the area of the end section (20, 21), so that the outflow direction from the outlet opening (18, 19) can be adjusted according to the rotational position. 2. The air distributor device according to claim 1, characterized in that the at least one inlet opening (16, 17) corresponds in shape and size to the at least one air outlet opening (12, 13). 3. The air distributor device according to claim 1, characterized in that the outlet opening (18, 19) of at least one air channel (14, 15) is smaller than the corresponding inlet opening (16, 17) of the air channel. 4. An air distributor device according to one of the preceding claims, characterized in that an air channel (14, 15) having two subchannels (22, 23) has at least one bend in at least one of the two subchannels (22, 23) leading to an outlet opening (18, 19) of the air channel. 5. The air distributor device according to claim 1, characterized in that the two partial channels (22, 23) are parallel to one another at least in certain areas. 6. An air distributor device according to one of the preceding claims, characterized in that the distributor drum (4) has a closed second end side (25) and is rotatably supported in the housing (2) or on the housing (2) at the second end side (25), in particular at a pivot pin (26) protruding axially from the end side (25). 7. The air distributor device according to claim 1, characterized in that the distributor drum (4) is of cylindrical design. 8. The air distributor device according to claim 1, characterized in that the distributor drum (4) is of conical or conical design. 9. An air distributor device according to claim 8, characterized in that the first end side (6) of the distributor drum (4) has a larger diameter than the second end side (25) of the distributor drum (4), wherein the angle (α) between the longitudinal center axis (5) and the cover wall (9) is at least 3°, especially in the longitudinal section. 10. The air distributor device according to claim 1, characterized in that at least one air outlet (12, 13) is provided inside the distributor drum (4) with at least one air guide element (30) extending axially, radially and/or tangentially. 11. The air distributor device according to claim 10, characterized in that a plurality of air-guiding elements (30) are provided which are spaced apart from one another in the axial direction and/or in the tangential direction. 12. An air distributor device according to one of the preceding claims, characterized in that at least one air outlet (12, 13) is provided inside the distributor drum (4) with at least one throttling element (30) extending axially, radially and/or tangentially, and the throttling element at least regionally covers the air outlet (12, 13). 13. An air distributor device according to one of the preceding claims, characterized in that each of the two air channels (14, 15) has a channel wall (24), which divides the air channel (14, 15) into two sub-channels (22, 23) along the longitudinal extension of the air channel from the inlet opening (16, 17) in the direction of the outlet opening (18, 19), and the channel wall ends in the area of the end section (20, 21). 14. The air distributor device according to claim 1, characterized in that at least one air duct (14, 15) has at least one rigid or adjustable, in particular tiltable, air-guiding element (27, 28, 29). 15. A motor vehicle, characterized in that it has an air distributor device (1) according to one of claims 1 to 14.