DE202024100472U1 - Ventilation device - Google Patents

Abstract

Ventilation device (1) for installation in an opening in a panel, in particular in a roof or wall panel of a motor vehicle, in order to form an air passage (5) in the opening that is open to the outside
- a cover element (2);
- a first shaped body (4), which
- a first pipe section (6),
- a circumferential first radial collar (7) projecting outwards from the first pipe section (6) at a first outer end of the first pipe section (6) and
- has a connection element (3) arranged on the outer first end of the first pipe section (6) for an air-permeable connection of the cover element (2);
- a sealing ring (7) for axial contact with the first radial collar (7) of the first pipe section (6) and on an outside of the panel adjoining the opening;
- a second shaped body (12), which
- a second pipe section (11), which can be plugged onto the first pipe section (6) of the first shaped body (4) in such a way that the plugged-on second pipe section (11) is guided coaxially on the first pipe section (6), and
- has an end face (10) which is axially opposite the first radial collar (7) of the first shaped body (4) at a second outer end of the second pipe section (11) when the second pipe section (11) is attached; characterized,
- that a first sleeve (8) of the first shaped body (4) is coaxially supported in the first pipe section (6);
- that a second sleeve (14) of the second shaped body (12) is coaxially supported in the second pipe section (11) and
- that a clamping screw (17) can be inserted through one of the two sleeves (8, 14) into the other of the two sleeves (8, 14) in order to create an axial clamping force between the two molded bodies (4) which compresses the sealing ring (7). 12), which tensions the end face (10) at the second outer end of the second pipe section (11) axially against an inside of the panel adjoining the opening.

Description

TECHNICAL FIELD OF THE INVENTION

The invention relates to a device for installation in an opening in a panel, in particular in a roof or wall panel of a motor vehicle, in order to form an air passage in the opening that is covered to the outside. In particular, the invention relates to a device with the features of the preamble of claim 1. Furthermore, the invention relates to a panel with an opening and with such a device forming an air passage in the opening that is covered to the outside, and to a motor vehicle with such a panel as a roof or wall panel.

Such a ventilation device is also called a fan.

The formation of an air passage in a roof or wall panel of a motor vehicle serves to ventilate the interior of the motor vehicle. According to the Road Hazardous Goods Ordinance (GGVS), adequate vehicle ventilation is required when transporting gases.

STATE OF THE ART

From the DE 879 522 C a ventilation device for vehicles, especially buses, is known. The ventilation device has a hood-shaped attachment that is open to the sides over an elongated suction opening in the vehicle ceiling. The height of the attachment can be adjusted relative to the vehicle ceiling and its upper end plate can be placed completely against the vehicle roof. In order to ensure a good seal of the upper end panel on the vehicle roof, the end panel is provided with an external sealing strip. An adjustment device for the height of the attachment consists of a nut provided with a button, in the internal thread of which a spindle can be adjusted in height by turning the button, and a spring which is arranged between the upper end plate and a plate. The spindle is hinged to the upper end plate. The plate surrounds the nut and is supported on a washer, which serves to hold the nut when the spindle is in a vertical position and is fastened with its two parts to a piece of pipe. The pipe section is located concentrically to the nut or the spindle and is connected via webs to a border of a suction opening formed in the vehicle roof. A second pipe section with a correspondingly smaller diameter can move in the pipe section and has its upper end welded to the upper end plate. At the other end of this pipe section, two opposite pins or screws are attached, which can move in vertical longitudinal slots in the pipe section. This provides upward guidance and stroke limitation for the attachment during its adjustment movement. When the attachment is moved in the suction opening of the vehicle roof, it rests against a seal attached to the vehicle roof.

From the EP 0 846 582 B1 a fan for mounting in a wall, in particular a roof cutout, of a transport vehicle is known. The fan has a fan housing, an insert part with an air passage opening for fastening in the cutout in the vehicle wall and a fan shaft mounted in a hub of the insert part, on which the fan housing is fastened in a rotationally fixed manner. The fan housing can be rotated in the cutout by 180° into a ventilation position and into a ventilation position in or against the direction of travel. A compression spring acting between the fan shaft and the hub pulls the fan housing over the shaft into contact with the outside of the vehicle wall. The cylindrical insert part has an outer ring flange through which sheet metal screws are screwed into the vehicle roof. A seal below the ring flange seals the insert part from the vehicle sheet metal roof. The insert part protrudes into the vehicle interior with an overhang that ensures that the insert part can penetrate even thicker inner wall panels. So that the fan makes an aesthetically pleasing impression from the inside of the vehicle after it has been installed in a vehicle, a cover ring is provided which covers the usually frayed gap between the insert part and the cutout in the vehicle wall. After installation, the cover ring is pushed from inside the vehicle over the cylindrical insert part against the inside of the vehicle wall or the wall paneling, with the cover ring snapping into outer notches which are formed at different heights on the projection of the insert part and which otherwise allow the projection to be easily cut off in accordance with the Allow the thickness of the interior wall paneling of the respective vehicle.

From the company publication “Installation instructions for roof ventilators (DLS) 801016208” from Sortimo international GmbH, Zusmarshausen, see https://www.fahrzeugeinrichtung.de/media/b7/01/aa/1689065758/ Installation instructions%20Dachl%C3%BCfter%20Schmal_20160705150439.pdf , a ventilation device with the features of the preamble of independent claim 1 is known. Locking lugs are formed on the tube section of the first shaped body, which when the tube section with the sealing ring arranged thereon is pressed in from the outside through the opening in the panel on the inside of the panel and thus lock the molded body with the panel. The cover element can then be clipped onto the first molded body and screwed to it. On the inside of the panel, the second molded body can be pushed on as a cover, whereby its end face must maintain a distance from the panel in order not to deactivate the locking lugs. A second radial collar protrudes from an inner end of the tube section of the second shaped body and can rest on an inner lining of the panel. This ventilation device is easy to install in the opening in the panel. However, the tight connection of your first molded body via the sealing ring to the outside of the panel is only guaranteed as long as the seal retains its original elasticity and thus completely sealingly bridges the distance between the first radial collar of the first molded body and the locking lugs of the first molded body, to the extent that it is not bridged by the panel with which the first molded body is locked. There is a considerable risk that this locking mechanism will become loose if the material of the sealing ring hardens over time, especially if the respective panel is comparatively thin.

OBJECT OF THE INVENTION

The invention has for its object to provide a ventilation device with the features of the preamble of claim 1, which is also easy to install in the opening in the panel, but which can also be easily adjusted in order to ensure a tight connection to its first molded body in the long term ensure the outside of the panel.

SOLUTION

The object of the invention is achieved by a ventilation device with the features of claim 1. The dependent claims 2 to 10 are directed to preferred embodiments of the ventilation device according to the invention. The protection claim 11 relates to a panel with a ventilation device according to the invention, and the protection claim 12 relates to a motor vehicle with such a panel.

DESCRIPTION OF THE INVENTION

A ventilation device according to the invention is designed for installation in an opening in a panel, in particular in a roof or wall panel of a motor vehicle, in order to form an air passage in the opening that is open to the outside. The panel can be a simple sheet of metal. The outside of the sheet metal can be painted, while the inside can be covered with cladding. The opening in the panel into which the ventilation device is to be installed is usually closed at the edge. It may have been inserted into the panel with a punch, a circle cutter, a jigsaw, a hole saw or the like and then deburred. The fact that the air passage formed by the ventilation device in the opening is open to the outside means that the ventilation device allows air to pass through the panel, but not a straight passage, so that, for example, rain or splash water cannot pass through the air passage unhindered. The direction outside, which is used here to describe the ventilation device, refers to where the air passage formed by the ventilation device is openly covered.

The ventilation device according to the invention has a cover element, a first shaped body, a sealing ring, a second shaped body and a clamping screw. The cover element serves to cover the air passage which is open to the outside. The first shaped body has a first tube section, a circumferential first radial collar projecting radially outwards from the first tube section at a first outer end of the first tube section, a connecting element arranged on the outer first end of the first tube section for an air-permeable connection of the cover element and a coaxial in The first sleeve supported on the first pipe section. The first radial collar and the connection element for the air-permeable connection of the cover element, which are both arranged on the outer first end of the first pipe section, can be formed together by a region of the first shaped body.

The sealing ring is designed to rest axially on the first radial collar of the first pipe section and on an outside of the panel adjoining the opening. The sealing ring then lies on the outside of the panel between the first radial collar and the edge of the opening.

The second shaped body has a second tube section, which can be plugged onto the first tube section of the first shaped body in such a way that the attached second tube section is guided coaxially on the first tube section, an end face on a second one which is axially opposite the first radial collar of the first shaped body when the second tube section is attached outer end of the second pipe section and a second sleeve supported coaxially in the second pipe section. At this point it should be emphasized that the indication “second” pipe section or “second” sleeve of the second molded body is not means that the second shaped body would also have a first pipe section or a first sleeve. Rather, the indication “second” pipe section or “second” sleeve of the first shaped body only serves to distinguish the second pipe section from the first pipe section of the first shaped body and the second sleeve from the first sleeve of the first shaped body. Accordingly, the statement “second” outer end of the second pipe section does not mean that this second pipe section also has a first outer end.

The clamping screw can be inserted through one of the two sleeves into the other of the two sleeves in order to apply an axial clamping force that compresses the sealing ring between the two molded bodies, which presses the end face at the second outer end of the second pipe section axially against an adjoining opening Inside of the panel is tense. The clamping force acting on the sealing ring between the shaped bodies can therefore be adjusted by tightening the clamping screw and, in particular, adjusted if the sealing ring has changed in shape or properties due to the flow and / or hardening of its material. With the clamping screw, which is supported on the two sleeves supported coaxially in the pipe sections, the clamping force is applied at a central location in such a way that it is automatically distributed evenly over the entire edge of the opening and is supported over the entire circumference of the sealing ring, so that the first molded body is sealed over its entire circumference relative to the edge of the opening. In this way, a simple assembly of the ventilation device according to the invention as well as a simple readjustment of the clamping force is ensured.

Preferably, the end face at the second outer end of the second tube section extends in the radial direction over a second radial collar projecting outwards from the second tube section. In other words, a radial collar, on which the end face is formed, is also arranged on the outer end of the second pipe section. The such increased radial extent of the end face ensures that it rests on the inside of the panel everywhere along the edge of the opening in order to distribute the clamping force evenly over this edge. In principle, however, neither the end face nor the radial collar forming it has to run closed around the first pipe section received by the second pipe section, but can also have interruptions. However, a circumferential end face on a circumferential radial collar is preferred. The radial extent of the second radial collar can exceed the radial extent of the first radial collar and can extend beyond it, for example, by 1 mm to 5 mm.

The clamping screw can specifically have a threaded bolt with a radially projecting head and a nut that can be screwed onto it, the head of the threaded bolt and the screwed-on nut being supported on opposite ends of the two sleeves. So the head of the threaded bolt or nut at the inner end of the second sleeve on the inside of the panel is accessible to vary the clamping force. It goes without saying that the nut or the head of the threaded bolt is preferably supported in a rotationally fixed manner on the outer end of the first sleeve, which can be achieved in a simple manner by means of a positive fit. The tension screw nut can be a self-locking nut. In addition, the head of the threaded bolt to be twisted or the nut to be twisted can be supported on the inner end of the second sleeve via a washer.

In another embodiment of the ventilation device according to the invention, the clamping screw is a self-tapping screw with a screw shaft and a head projecting radially beyond the screw shaft. The head is then supported on one sleeve, usually on the inner end of the second sleeve on the inside of the panel. The screw shaft engages in the other sleeve, usually the first sleeve, and thereby cuts an internal thread in the other sleeve, via which the clamping screw is supported on the other sleeve. The head to be twisted can also be supported on the inner end of the second sleeve via a washer.

The first tube section can have a cylindrical outer contour and the second tube section can have a cylindrical inner contour. The tube sections of the two molded bodies are thus matched to a circular opening in the panel, which can be introduced into the panel with comparatively little effort but with defined dimensions.

The second tube section can have an outer contour with circumferential grooves that follow one another in the axial direction. These circumferential grooves can serve to ensure that a pipe section of a third molded body, which can be plugged onto the second pipe section of the second molded body in such a way that the plugged-on third pipe section is guided coaxially on the second pipe section, automatically maintains the axial position it achieved when it was plugged on by means of locking lugs snaps into the associated circumferential groove. At an inner end of the third pipe section, a circumferential third radial collar can protrude from the third pipe section. Con In reality, this third radial collar can extend radially outwards beyond the end face of the second molded body, for example by 1 cm to 3 cm, in order to reliably cover the edge of a continuation of the opening in an inner lining of the panel.

The third radial collar can have axially extending fastening holes in order to connect it in a form-fitting manner to the inner lining at the edge of the continuation of the opening.

Further fastening holes may extend axially through the cover element, and the connection element may have screw receiving holes aligned therewith in order to secure the cover element to the connection element with fastening screws. In addition, the cover element can have a support contour on its inside and the connection element can have a complementary support contour on its outside. These support contours can also be designed to lock with one another.

The cover element can have a mushroom cap contour or a dorsal fin contour on its outside. A dorsal fin contour may be preferred if the ventilation device is mounted in an opening in a roof panel of a motor vehicle. The cover element with dorsal fin contour can be designed in such a way that its flow through the wind of the motor vehicle results in air being sucked out of the interior of the motor vehicle through the air passage.

A panel according to the invention has an opening and a ventilation device according to the invention, which forms an air passage in the opening that is open to the outside. A motor vehicle according to the invention has such a panel according to the invention with a ventilation device according to the invention as a wall or roof panel.

Advantageous developments of the invention result from the protection claims, the description and the drawings.

The advantages of features and combinations of several features mentioned in the description are merely examples and can have an alternative or cumulative effect without the advantages necessarily having to be achieved by embodiments according to the invention.

With regard to the disclosure content - not the scope of protection - of the original application documents and the registered utility model, the following applies: Further features can be found in the drawings - in particular the geometries shown and the relative dimensions of several components to one another as well as their relative arrangement and operative connection. The combination of features of different embodiments of the invention or of features of different protection claims is also possible, deviating from the selected relationships of the protection claims, and is hereby encouraged. This also applies to features that are shown in separate drawings or are mentioned in their description. These features can also be combined with features of different protection claims. Likewise, features listed in the protection claims may be omitted for further embodiments of the invention, but this does not apply to the independent protection claims of the registered utility model.

The features mentioned in the protection claims and the description are to be understood in terms of their number in such a way that exactly this number or a larger number than the number mentioned is present, without the need for an explicit use of the adverb “at least”. For example, when we talk about a sealing ring, this should be understood to mean that there is exactly one sealing ring, two sealing rings or more sealing rings. The features listed in the protection claims can be supplemented by further features or can be the only features that the subject of the respective protection claim has.

The reference symbols contained in the protection claims do not represent a restriction on the scope of the objects protected by the protection claims. They merely serve the purpose of making the protection claims easier to understand.

BRIEF DESCRIPTION OF THE FIGURES

• 1 ist eine Ansicht von vorne auf eine erste Ausführungsform der erfindungsgemäßen Lüftungsvorrichtung.
• 2 ist ein Schnitt durch die erfindungsgemäße Lüftungsvorrichtung gemäß 1 längs einer in 1 eingezeichneten Schnittlinie A-A.
• 3 ist eine perspektivische Ansicht der erfindungsgemäßen Lüftungsvorrichtung gemäß den 1 und 2 mit Blickrichtung schräg von oben.
• 4 ist eine perspektivische Ansicht der erfindungsgemäßen Lüftungsvorrichtung gemäß den 1 bis 3 mit Blickrichtung schräg von unten.
• 5 ist eine Ansicht der erfindungsgemäßen Lüftungsvorrichtung gemäß den 1 bis 4 von oben; und
• 6 ist ein 2 von der Blickrichtung entsprechender Schnitt durch eine andere Ausführungsform der erfindungsgemäßen Lüftungsvorrichtung.

The invention is further explained and described below using preferred exemplary embodiments shown in the figures.

• 1 is a front view of a first embodiment of the ventilation device according to the invention.
• 2 is a section through the ventilation device according to the invention 1 along one in 1 marked section line AA.
• 3 is a perspective view of the ventilation device according to the invention according to 1 and 2 with a view diagonally from above.
• 4 is a perspective view of the ventilation device according to the invention the 1 to 3 looking obliquely from below.
• 5 is a view of the ventilation device according to the invention according to 1 to 4 from above; and
• 6 is a 2 Corresponding section from the viewing direction through another embodiment of the ventilation device according to the invention.

FIGURE DESCRIPTION

The 1 to 5 show a ventilation device 1 according to the invention in different views. The ventilation device 1 is not shown completely assembled, but without connecting a cover element 2 to a connection element 3. The connection element 3 is part of a first molded body 4. The ventilation device 1 is for installation in an opening of a panel (not shown here), in particular in a roof - or wall panel of a motor vehicle, provided in order to form an air passage 5 in the opening that is open to the outside through the cover element 2. In addition to the connecting element 3 for the air-permeable connection of the cover element 2, the first shaped body 4 has a first pipe section 6, a circumferential first radial collar 7 projecting outwards from the first pipe section 6 at a first outer end of the first pipe section 6 and a coaxial one in the first pipe section 6 supported first sleeve 8. A sealing ring 9 of the ventilation device 1 rests axially on the first radial collar 7. On the opposite axial side, the sealing ring 9 lies axially against an end face 10 at the outer end of a second pipe section 11 of a second shaped body 12, which is expanded in the radial direction by a second radial collar 13. When the ventilation device 1 is mounted in the opening in a panel, the sealing ring 7 on the outside of the panel rests on the edge of the opening, while the end face 10 on the inside of the panel rests on the edge of the opening. The second pipe section 11 is axially plugged onto the first pipe section 6 and guided thereon in the axial direction. In the second pipe section 11, a second sleeve 14 of the second shaped body 12 is coaxially supported at its inner end. The second sleeve 14 is supported here via six spoke-shaped arms 15 of the second shaped body 12. The first sleeve 8 is coaxially supported in the first pipe section 6 via three spoke-shaped arms 16 of the first shaped body 4 which are more extensive in the axial direction. A clamping screw 17 with a threaded bolt 19 having a head 18 and a screwed-on nut 20 extends through the sleeves 8 and 14. With the clamping screw 17, an axial clamping force that compresses the sealing ring 7 can be applied between the two molded bodies 4 and 12, which End face 10 of the second pipe section 11 is acted upon axially on the sealing ring 7. Circumferential grooves 21 are formed on the outer circumference of the second tube section, into which locking lugs 22 on the outer end of a third tube section 23 of a third shaped body 24 can snap radially inwards. The third pipe section 23 can be axially plugged onto the second pipe section 11 and then guided on it in the axial direction and automatically maintains the axial position achieved by snapping its locking lugs 22 into one of the circumferential grooves 21. From the inner end of the third tube section 23 of the third shaped body 24, a third radial collar 25 protrudes radially outwards beyond the end face 10 of the second shaped body 13 in order to provide a clean connection to an inner lining of the respective panel. Fastening holes 26 are formed in the radial collar 25, through which fastening screws (not shown here) can engage in the inner lining. Fastening screws 27 are shown for fastening the cover element 2 to the connection element 3. For the fastening screws 27, axially extending fastening holes 28 are provided in the cover element 2 and aligned screw receiving holes 29 in the connection element. The cover element 2 has a dorsal fin contour 30 with which it can be aligned along a direction of travel of a respective vehicle when the ventilation device 1 is mounted in an opening in a roof panel of the vehicle.

The 6 in one 2 Another embodiment of the ventilation device 1 according to the invention shown in a corresponding section from the direction of view is shown completely assembled, ie with the cover element 2 connected to the connection element 3. The fastening screws 27 are through the fastening holes 28 in the cover element 2 into the screw receiving holes 29 in the connection element screwed in. The ventilation device 1 according to 6 differs from that according to the 1 to 5 in two independent aspects, which also apply individually to the ventilation device 1 according to 1 to 5 are transferable. The cover element 2 has a mushroom cap contour 33 and is therefore designed in particular for installation in an opening in a side wall panel of a motor vehicle, not shown here. Although the clamping screw 17 has a radially projecting head 18, it does not have a threaded bolt 19 with a screwed-on nut 20, but rather it is designed as a self-tapping screw 31 with a screw shaft 32. The head is supported on the inner end of the sleeve 14. The screw shaft 32 engages through the sleeve 14 into the sleeve 8 and cuts into it Internal thread in the sleeve 8, via which the screw 31 is supported on the sleeve 8. The clamping screw 17, designed as a self-tapping screw 31 with the sleeve 8 adapted to it, has at least the same functionality as the threaded bolt with a screwed-on nut 20 at a lower cost. In addition, there is greater flexibility with regard to the axial distance between the sleeves 8 and 14, since the screw shaft 32 can both reach into the sleeve to different extents and protrude over it.

REFERENCE SYMBOL LIST

1

Ventilation device

2

Cover element

3

Connection element

4

first molded body

5

Air passage

6

first pipe section

7

first radial collar

8th

first sleeve

9

sealing ring

10

face

11

second pipe section

12

second molding

13

second radial collar

14

second sleeve

15

poor

16

poor

17

Tension screw

18

Head

19

Threaded bolt

20

Mother

21

Circumferential groove

22

detent nose

23

third pipe section

24

third shaped body

25

third radial collar

26

mounting hole

27

Fastening screw

28

mounting hole

29

Screw receiving hole

30

Dorsal fin contour

31

self-tapping screw

32

screw shaft

33

Mushroom cap outline

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 879522 C [0004]
• EP 0846582 B1 [0005]

Claims (12)

Ventilation device (1) for installation in an opening in a panel, in particular in a roof or wall panel of a motor vehicle, in order to form an air passage (5) in the opening that is open to the outside, with - a cover element (2); - a first molded body (4), which - a first tube section (6), - a circumferential first radial collar (7) projecting outwards from the first tube section (6) at a first outer end of the first tube section (6) and - an has a connection element (3) arranged at the outer first end of the first pipe section (6) for an air-permeable connection of the cover element (2); - a sealing ring (7) for axial contact with the first radial collar (7) of the first pipe section (6) and on an outside of the panel adjoining the opening; - a second molded body (12), which - a second pipe section (11) which can be plugged onto the first pipe section (6) of the first molded body (4) in such a way that the plugged-on second pipe section (11) rests on the first pipe section (6). is guided coaxially, and - has an end face (10) which is axially opposite the first radial collar (7) of the first shaped body (4) at a second outer end of the second pipe section (11) when the second pipe section (11) is attached; characterized in that - a first sleeve (8) of the first shaped body (4) is coaxially supported in the first pipe section (6); - that a second sleeve (14) of the second shaped body (12) is supported coaxially in the second pipe section (11) and - that a clamping screw (17) passes through one of the two sleeves (8, 14) into the other of the two sleeves (8, 14) can be introduced in order to apply an axial clamping force compressing the sealing ring (7) between the two molded bodies (4, 12), which presses the end face (10) at the second outer end of the second pipe section (11) axially against one the opening adjoining the inside of the panel. Ventilation device (1). Claim 1 , wherein the end face (10) at the second outer end of the second pipe section (11) extends radially over a second radial collar (13) projecting outwards from the second pipe section (11). Ventilation device (1). Claim 1 or 2 , wherein the clamping screw (17) is a self-tapping screw (31) with a screw shaft (32) and a head (18) projecting radially beyond the screw shaft (32), the head (18) being supported on one sleeve (14). and the screw shaft (32) engages through one sleeve (14) into the other sleeve (8) and thereby cuts an internal thread into the other sleeve (8). Ventilation device (1) according to one of the preceding claims, wherein the first pipe section (6) has a cylindrical outer contour and the second pipe section (11) has a cylindrical inner contour. Ventilation device (1) according to one of the preceding claims, wherein the second pipe section (11) has an outer contour with circumferential grooves (21) which follow one another in the axial direction. Ventilation device (1) according to one of the preceding claims, wherein a third shaped body (24) - a third pipe section (23), which can be plugged onto the second pipe section (11) of the second shaped body (12) in such a way that the plugged-on third pipe section (23) is guided coaxially on the second pipe section (11), the plugged-on third pipe section (23) automatically maintains its axial position reached on the second pipe section (11), and - has a circumferential third radial collar (25) projecting radially outwards from the third pipe section (23) beyond the end face of the second shaped body (12) at an inner end of the third pipe section (23). Ventilation device (1). Claim 6 , wherein the third radial collar (25) has axially extending fastening holes (26). Ventilation device (1) according to one of the preceding claims, wherein the cover element (2) has axially extending fastening holes (28) and the connecting element has screw receiving holes (29) aligned therewith. Ventilation device (1) according to one of the preceding claims, wherein the cover element (2) has a support contour on its inside and the connection element has a complementary support contour on its outside. Ventilation device (1) according to one of the preceding claims, wherein the cover element (2) has a mushroom cap contour (33) or a dorsal fin contour (30) on its outside. Panel with an opening and with a ventilation device (1) according to one of the preceding claims forming an air passage (5) that is open to the outside in the opening. Motor vehicle with a panel Claim 11 as a roof or wall panel.

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