VEHICLE INTERIOR VENTILATION DEVICE

Abstract

Vehicle interior ventilation device with at least one pressure relief valve (1) of a first type, which is received and / or fixed in a first receiving opening in a vehicle body component (100), and with at least one pressure relief valve (10) of a second type different from the first type, which is received and / or fixed in a second receiving opening separated from the first receiving opening in a vehicle body component (100).

Description

[0001] The present invention relates generally to ventilation devices for the interior of vehicles, wherein such ventilation devices are also referred to herein as "pressure relief valve arrangements".

[0002] Ventilation devices or pressure relief valve arrangements for the interior of vehicles generally have a frame surrounding a ventilation opening, on which at least one pivotable flap covering the ventilation opening rests on the outside.

[0003] Such venting devices or pressure relief valve arrangements are generally known in various embodiments. For example, reference is made in this context to German patent application DE 35 03 600 A1.

[0004] In the pressure relief valve arrangement known from this prior art, an airflow from the vehicle interior to the outside can pass through the vent opening, specifically because the pressure conditions created by this airflow lift at least one flap of the pressure relief valve arrangement from the frame. Conversely, the flap, which then rests on the frame, successfully prevents the ingress of ambient air into the vehicle interior.

[0005] Document US 10,639,963 B2 concerns pressure relief valves for vehicles designed to equalize a sudden pressure increase within the passenger compartment. Such pressure relief valves are also known from Document US 11,186,144 B2 and Document US 2019 / 0322157 A1.

[0006] Accordingly, pressure relief valve arrangements of the type considered herein serve to reduce the build-up of air pressure in the vehicle interior, for example, when closing the vehicle's tailgate. The pressure relief valve, usually designed as a flap, can open when the air pressure inside the vehicle increases to allow air to escape, thereby reducing the air pressure and, for example, decreasing the effort required to close the vehicle's tailgate.

[0007] Furthermore, a vehicle equipped with a pressure relief valve assembly can influence the airflow from the passenger compartment to enhance passenger comfort. Since an air conditioning system draws in ambient air from outside the vehicle and introduces it into the passenger compartment, venting through the pressure relief valve assembly is necessary to achieve proper circulation and relieve pressure buildup.

[0008] In vehicles with electrically operated sliding doors, a pressure relief valve arrangement is of particular importance. Unlike hinged doors, closing a sliding door causes a sudden pressure build-up inside the vehicle, which must be equalized by a pressure relief valve arrangement. This is because, during the closing process, a sliding door first moves parallel to the door opening and then perpendicular to it. The vertical movement is relatively short, meaning that the overpressure in the passenger compartment cannot be released through the closing door gap. This is especially true for large sliding doors.

[0009] Conventional pressure relief valve arrangements are not designed to quickly and effectively equalize the overpressure that builds up during the closing process of a sliding door, thus significantly simplifying the closing procedure. In electrically operated sliding door systems, this means that the electric actuator must exert a considerable amount of power to close the door.

[0010] Enlarging the pressure relief valve arrangements in such vehicles to increase the achievable airflow is not an alternative, since when the pressure relief valve belonging to a pressure relief valve arrangement opens, noise from outside can penetrate through the opening, so there is an effort to make pressure relief valves as small as possible to reduce the ingress of noise and external elements into the vehicle interior.

[0011] Furthermore, pressure relief valve arrangements cannot be arbitrarily integrated into the vehicle body or outer skin of the vehicle.

[0012] For pressure relief valve assemblies of the type considered herein, it is essential that they can be securely received and fixed in a receiving opening of a vehicle body component or outer skin component. This implies, in particular, the requirement that the vehicle body component or outer skin component is flat in the area of ​​the planned pressure relief valve assembly, or has a so-called flat surface topology, to ensure that a mounting flange of the pressure relief valve assembly can rest securely on the surface of the vehicle body component on all sides. Otherwise, an effective seal of the receiving opening provided in the body component for mounting the pressure relief valve assembly cannot be achieved.

[0013] In particular, it is therefore necessary that a pressure relief valve arrangement is installed in an area of ​​a body component which is completely flat and, in particular, has no curves or edges or corners.

[0014] In other words, to mount a pressure relief valve assembly in a vehicle body component, only a relatively large area of ​​the body component that has the required flatness is necessarily suitable.

[0015] This requirement is increasingly posing a problem in automotive design, and especially in the design of vehicle exteriors. Automotive designers must meet several expectations.

[0016] They must find a functional, ergonomic, and aesthetically pleasing form for the technology. This form should embody the company's brand values, such as sportiness, comfort, or technological advancement. Ultimately, the design should evoke emotions and thus convert prospects into buyers. When purchasing a car today, vehicle design is one of the most important decision-making criteria.

[0017] However, the engineering aspects must also be considered during the design process, which means that not all design lines can be implemented, or at least not without significant limitations. In the exterior area, this includes, among other things, the integration of pressure relief valve assemblies, which – as already mentioned – require a relatively large and, in particular, flat surface in the vehicle body for installation.

[0018] Another aspect is the increased use of sensors, such as distance radar sensors, in the pressure relief valve assembly. These sensors improve the safety and comfort of vehicle occupants and also limit the space required for the pressure relief valve assembly. These sensors will be increasingly necessary in future autonomous vehicles.

[0019] Based on this problem, the invention aims to provide a solution for the rapid reduction of overpressure in the vehicle interior, for example when a sliding door is closed, while simultaneously enabling the pressure relief valve assembly to be optimally mounted in the vehicle body with the smallest possible space requirement. In particular, the functionality and capacity of the venting are to be improved.

[0020] The problem underlying the invention is solved by a vehicle interior ventilation device according to independent claim 1, wherein advantageous further developments of the vehicle interior ventilation device are specified in the corresponding dependent claims.

[0021] Accordingly, the invention relates to a vehicle interior ventilation device with at least one pressure relief valve of a first type, which is received and / or fixed in a first receiving opening in a vehicle body component, and with at least one pressure relief valve of a second type different from the first type, which is received and / or fixed in a second receiving opening separated from the first receiving opening in a vehicle body component.

[0022] The advantages achievable with the solution according to the invention are obvious: by using several pressure relief valves, installed separately in the vehicle body, for the on-demand ventilation of the vehicle's interior, it is generally possible to make the individual pressure relief valves smaller without limiting the ventilation capacity. Smaller pressure relief valves can be flexibly integrated at various locations in the vehicle body, since each individual pressure relief valve requires very little space.

[0023] Furthermore, it is possible to optimally position the pressure relief valves within the vehicle body, for example, in the immediate vicinity of a door, especially a sliding door, or a hatch. The pressure build-up in the vehicle interior that results when the door / hatch is closed can thus be equalized particularly quickly.

[0024] The vehicle interior ventilation device according to the invention uses pressure relief valves of different types. In this way, various situations can be addressed.

[0025] According to implementations of the vehicle interior ventilation device according to the invention, at least one pressure relief valve of a first type and at least one pressure relief valve of a second type are used, wherein the first pressure relief valve type differs from the second pressure relief valve type in that the at least one pressure relief valve of the first type, in its fully open state, allows an air flow rate that is different from an air flow rate that the at least one pressure relief valve of the second type allows in its fully open state.

[0026] For example, in this context, it is conceivable that a relatively small pressure relief valve (compared to the pressure relief valve of the first type) could be used as the second type, thus allowing a lower airflow rate. Such a smaller pressure relief valve can be flexibly integrated into various vehicle body components, particularly in the immediate vicinity of a door or hatch, or in the immediate vicinity of an airbag.

[0027] Alternatively or additionally, it is conceivable that the first type of pressure relief valve differs from the second type of pressure relief valve in that the at least one pressure relief valve of the first type opens at a first predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, and the at least one pressure relief valve of the second type opens at a second predetermined or definable differential pressure between the vehicle interior and the outside atmosphere that differs from the first opening differential pressure.

[0028] This design has the advantage that the individual pressure relief valves can be specifically adapted to the expected pressure situations in the vehicle interior. For example, one pressure relief valve could be designed to equalize the overpressure that builds up in the vehicle cabin when an air conditioning system is operating, while the other pressure relief valve serves only to equalize pressure peaks that occur, for example, when a door or tailgate of the vehicle is closed.

[0029] Alternatively or additionally, it is also conceivable that the first type of pressure relief valve differs from the second type of pressure relief valve in that the at least one pressure relief valve of the first type closes at a first predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, and the at least one pressure relief valve of the second type closes at a second predetermined or definable differential pressure between the vehicle interior and the outside atmosphere that differs from the first closing differential pressure.

[0030] In particular, the at least one pressure relief valve of the second type closes when the differential pressure between the vehicle interior and the outside atmosphere is higher than the first closing differential pressure for the at least one pressure relief valve of the first type. In other words, the at least one pressure relief valve of the second type preferably closes earlier in terms of timing than the at least one pressure relief valve of the first type.

[0031] With this design, it is possible that if there is only a slight overpressure inside the vehicle, which can build up, for example, when an air conditioning system is operating, only one type of pressure relief valve remains open to equalize the overpressure.

[0032] In accordance with the implementations of the aforementioned aspects, it is particularly intended that the first type of pressure relief valve differs from the second type of pressure relief valve in that the at least one pressure relief valve of the first type, in its fully open state, allows an air flow rate that is greater than an air flow rate that the at least one pressure relief valve of the second type allows in its fully open state.

[0033] Alternatively, it is also conceivable that the at least one pressure relief valve of the second type, in its fully open state, allows an air flow rate that is greater than an air flow rate that the at least one pressure relief valve of the first type allows in its fully open state.

[0034] Alternatively or additionally, it is provided that the at least one pressure relief valve of the first type opens at a first predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, and the at least one pressure relief valve of the second type opens at a second predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, wherein the second predetermined or definable opening differential pressure is greater than the first predetermined or definable opening differential pressure value.

[0035] Similarly, it is also conceivable that the at least one pressure relief valve of the first type closes at a first predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, and that the at least one pressure relief valve of the second type closes at a second predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, wherein the second predetermined or definable closing differential pressure is higher than the first predetermined or definable closing differential pressure value.

[0036] According to embodiments of the vehicle interior ventilation device according to the invention, the first type of pressure relief valve differs from the second type of pressure relief valve in that the at least one pressure relief valve of the first type can be received and / or fixed in a first receiving opening in a vehicle body component, and the at least one pressure relief valve of the second type can be received and / or fixed in a second receiving opening in a vehicle body component, wherein the first receiving opening differs from the second receiving opening in particular and preferably with regard to its size and / or shape.

[0037] Thus, it is conceivable that the at least one pressure relief valve of the first type is received or fixed in a receiving opening formed in a first vehicle body component or in a first outer skin component of the vehicle body, and that the at least one pressure relief valve of the second type is received and / or fixed in a receiving opening formed in a second vehicle body component or in a second outer skin component of the vehicle body, wherein the first vehicle body component or the first outer skin component is preferably different from the second vehicle body component or the second outer skin component.

[0038] According to implementations of this embodiment, the second vehicle body component or the second outer skin component is a vehicle body component or outer skin component in which a vehicle door, in particular a sliding door, is received, or which adjoins a vehicle body component or outer skin component in which a vehicle door, in particular a sliding door, is received.

[0039] On the other hand, with this design it is conceivable that the first vehicle body component or the first outer skin component in which the at least one pressure relief valve of the first type is integrated is a vehicle body component or outer skin component in a rear area of ​​the vehicle, where there is usually enough space available to accommodate a pressure relief valve in a concealed manner, i.e. not visible from the outside.

[0040] According to embodiments of the vehicle interior ventilation device according to the invention, the first type of pressure relief valve differs from the second type of pressure relief valve in that the at least one pressure relief valve of the first type is of a different design than the at least one pressure relief valve of the second type. By providing different designs for the pressure relief valves, different pressure equalization characteristics can be achieved.

[0041] In this context, it is specifically intended that the design of the first type of pressure relief valve differs from that of the second type with regard to the type of closure. According to various implementations, the pressure relief valve of the first type is designed with at least one check valve as its shut-off element, while the pressure relief valve of the second type is designed as a poppet or ball check valve. This allows for different response characteristics of the pressure relief valves.

[0042] According to embodiments of the latter aspect, the at least one pressure relief valve of the first type is designed as a proportional valve, the opening behavior of which, in the range of the response pressure up to full opening, is proportional to the differential pressure between the vehicle interior and the outside atmosphere. On the other hand, the pressure relief valve of the second type can preferably be designed as a full-stroke valve, which, upon response, opens particularly abruptly and preferably with its full stroke.

[0043] Of course, other designs are also possible, especially for the pressure relief valve of the second type.

[0044] The pressure relief valves of the vehicle interior ventilation device according to the invention can also differ in that the at least one pressure relief valve of the first type is a weight-loaded, torsion spring-loaded and / or gravity-loaded valve, while the at least one pressure relief valve of the second type is in particular a spring-loaded valve.

[0045] According to further developments of the vehicle interior ventilation device according to the invention, it is provided that only the at least one pressure relief valve of the first type is equipped with a type of "silencer". For example, a cover is placed on the pressure relief valve of the first type to form a silencer chamber, wherein, in the open state of the pressure relief valve, a flow path between the vehicle interior and the outside atmosphere runs at least partially through the silencer chamber.

[0046] Specifically, the invention relates to a vehicle interior ventilation device, wherein, for example, the at least one pressure relief valve of the first type performs the "classic" function of a venting valve, i.e., to equalize the overpressure that builds up in the vehicle interior, for example, during the operation of an air conditioning system, while the at least one pressure relief valve of the second type performs special tasks, in particular only responding when a sudden pressure build-up occurs in the vehicle interior, as is the case in particular when closing a sliding door, when closing a side door or tailgate hinged on one side, or when triggering an airbag.

[0047] This expands the functionality of the vehicle's interior ventilation system. A further consequence is that a door, especially a sliding door, can be closed with significantly less force. For electrically operated doors, this means that the corresponding electric actuators can be smaller.

[0048] The invention further relates to a vehicle with a vehicle body formed from vehicle body components or outer skin components, which at least partially or partially encloses or defines a vehicle interior, wherein the vehicle has a vehicle interior ventilation device of the aforementioned type according to the invention, which is designed to equalize a differential pressure between the vehicle interior and the outside atmosphere as required.

[0049] The invention is described in more detail below with reference to the accompanying drawings.

[0050] They show: Fig. 1 schematically and in an exploded view an exemplary embodiment of a pressure relief valve of the first type for the vehicle interior ventilation device according to the invention; Fig. 2a schematically and in a front view the exemplary embodiment of the pressure relief valve according to Fig. 1; Fig. 2b schematically and in a side view the exemplary embodiment of the pressure relief valve according to Fig. 1; Fig. 2c schematically and in a rear view the exemplary embodiment of the pressure relief valve according to Fig. 1; Fig. 3 schematically and in an exploded view a first exemplary embodiment of a pressure relief valve of the second type for the vehicle interior ventilation device according to the invention; Fig. 4 schematically and in an isometric view the exemplary embodiment of the pressure relief valve according to Fig. 3; Fig. 5a schematically and in a sectional view the exemplary embodiment of the pressure relief valve according to Fig. 3 in an open state; Fig. 5b schematically and in a sectional view the exemplary embodiment of the pressure relief valve according to Fig. 3 in a closed state; Fig. 6a schematically and in an isometric view a second exemplary embodiment of a pressure relief valve of the second type for the vehicle interior ventilation device according to the invention; Fig. 6b schematically and in a sectional view the second exemplary embodiment of the pressure relief valve according to Fig. 6a in a built-in and closed state; Fig. 6c schematically shows an excerpt from Fig. 6b; Fig. 7 schematically and in isometric views a further exemplary embodiment of the pressure relief valve of the second type for the vehicle interior ventilation device according to the invention; Fig. 8 schematically and in isometric views a further exemplary embodiment of the pressure relief valve of the second type for the vehicle interior ventilation device according to the invention; and Fig. 9 schematically and in isometric views another exemplary embodiment of the pressure relief valve of the second type for the vehicle interior ventilation device according to the invention.

[0051] The present invention relates in particular to a vehicle interior ventilation device comprising at least one pressure relief valve 1 of a first type and a pressure relief valve 10 of a second type, which differs from the first type. The pressure relief valves 1 and 10 of the different types are each received in different receiving openings in a vehicle body and fixed accordingly. As can be seen from the accompanying drawings, the first type of pressure relief valve differs from the second type of pressure relief valve, particularly with regard to its design.

[0052] With reference to the representations in Fig. 1 to Fig. 2c first describes an exemplary embodiment of a pressure relief valve 1 of the first type.

[0053] The pressure relief valve 1 has a housing 2, in particular a frame housing, which defines an air inlet area and an opposing air outlet area. A housing wall of the housing 2 delimits a flow channel or air duct 3 between the air inlet area and the air outlet area. Air can flow through this flow channel or air duct 3 through the pressure relief valve 1 or through the housing 2 of the pressure relief valve 1 by entering via the air inlet area of ​​the pressure relief valve 1 and exiting again via the air outlet area of ​​the pressure relief valve 1.

[0054] The pressure relief valve 1 has at least one flap 4, in particular a valve flap, a shut-off flap or the like, which is movable or rotatable, in particular pivotable, about a first axis of rotation running orthogonally to the main flow direction in the housing 2 of the pressure relief valve 1.

[0055] In the representation in Fig. Figure 1 shows three such flaps 4. However, fewer or more than three flaps 4 can also be used.

[0056] The at least one flap 4 of the pressure relief valve 1 of the first design is reversibly movable between an open position and a closed position. In a closed position, the at least one flap 4 contacts the housing 2 of the pressure relief valve 1, at least partially. In particular, in a closed position, the at least one flap 4 contacts the housing 2 of the pressure relief valve 1 at at least one contact surface 5, against which the at least one flap 4 rests in the closed position. According to one embodiment, the contact surface 5 can also be formed around the entire circumference of the housing 2 of the pressure relief valve 1.

[0057] In the open position, the at least one flap 4 is aligned or arranged in such a way that it opens the flow channel or air channel 3 of the pressure relief valve 1 to the flowing air, so that the air can flow through the pressure relief valve 1.

[0058] The pressure relief valve 1 can be coupled or connected via the housing 2 to another component, part, or element, such as a vehicle body part 100. The pressure relief valve 1 can either be received in a recess of such a wall via the housing 2.

[0059] Fig. 2a to Fig. Figure 2c shows the pressure relief valve 1 of the first type according to Fig. 1 in three different views: in Fig. Figure 2a shows a front view of the pressure relief valve 1. The flow channel or air channel 3 of the pressure relief valve 1 is divided into at least one flow area, with each flow area having an associated passage opening 6 for the airflow. The at least one passage opening 6 is the Fig. 2c to be explicitly taken and in Fig. 2a is only indicated, as it is covered by flap(s) 4.

[0060] Specifically, the following are the details of the in Fig. 2a to Fig. In the embodiment of the pressure relief valve 1 of the first type shown in Figure 2c, three through-holes 6 are provided in the pressure relief valve 1. Each of these through-holes 6 is enclosed by a corresponding housing web 2.1 (see Figure 2c). Fig. 2c) trained.

[0061] However, it is also possible that the pressure relief valve 1 is provided with only exactly one flow opening 6. It is equally conceivable that the pressure relief valve 1 has more than one or three flow openings 6.

[0062] Each of these passage openings 6 can be assigned at least one flap 4, so that each of the passage openings 6 can be closed or opened by its own flap 4.

[0063] Fig. Figure 2b shows a side view of an exemplary embodiment of the pressure relief valve 1 of the first type. This illustration shows that the housing 2 of the pressure relief valve 1 can have a special external geometry so that the pressure relief valve 1, or the housing 2 of the pressure relief valve 1, can be received into a corresponding recess, for example, of a vehicle body component 100.

[0064] Fig. Figure 2c shows an exemplary embodiment of the pressure relief valve 1 of the first design from a rear view. In this illustration, the housing webs 2.1 are clearly visible, which on the one hand provide the various passage openings 6 and on the other hand simultaneously form the contact surfaces 5 for the flaps 4. The main direction of extension of the housing webs 2.1 is orthogonal to the main direction of airflow.

[0065] The housing webs 2.1 of the pressure relief valve 1 can have additional housing ribs 2.2, which are arranged orthogonally to a main extension direction of the housing webs 2.1. These additional housing ribs 2.2 provide a further subdivision of the passage openings 6 into sub-openings.

[0066] The housing webs 2.1 and the additional housing ribs 2.2 provide further stiffening of the housing 2 of the pressure relief valve 1, preventing unintentional deformation during installation, for example. The housing webs 2.1 and the housing ribs 2.2 are integrally formed with the housing 2 of the pressure relief valve 1.

[0067] Furthermore, the use of housing ribs 2.2 in the pressure relief valve 1 provides the additional advantage of preventing small animals, such as mice or the like, from entering the passenger compartment or areas between a vehicle outer skin and the passenger compartment via the pressure relief valve 1.

[0068] The following sections refer to the descriptions in Fig. 3 to Fig. Nine exemplary embodiments of a pressure relief valve 10 of a second design are described. It is immediately apparent that the pressure relief valves 10 of the second design differ from the previously described pressure relief valve 1 of the first design with regard to their construction and function.

[0069] The in Fig. 3 to Fig. The exemplary embodiments of the pressure relief valves 10 of the second type shown in Figure 9 are designed as disc check valves, with a spring 15 ensuring the valve 10 is closed. The sealing element is in the form of a flat, in particular circular, plate or disc (valve disc 11), although other shapes for the valve plate are of course conceivable. A bolt or pin 20 is used for guidance.

[0070] In detail, and especially as shown in the exploded view in Fig. 3, the bolt or pin 20 is connected centrally to the valve plate 11 and is at a 90° angle to the longitudinal dimension of the valve plate 11.

[0071] In the assembled state of the pressure relief valve 10, the bolt or pin 20 passes through a sleeve-shaped element 14 of the valve frame 12 and then receives the compression spring or coil spring 15. A thickening or fixing is provided at the upper end of the bolt 20 to prevent the spring 15 held by the bolt 20 from being removed.

[0072] For this purpose, as in Fig. 7, Fig. 8 and Fig. 9 shown - different solutions are possible. In the case of the Fig. In the exemplary embodiment shown in Figure 7, a projection at the upper end region of the bolt 20 is materially connected to the bolt 20, for example by gluing or welding.

[0073] According to the in Fig. In the embodiment shown in Figure 8, a clamping ring 17 can also be used for fixing.

[0074] According to the representation in Fig. A countersunk nail 18 or similar can also be used. A spring-loaded detent function to hold the coil spring by means of an anchor foot is also conceivable.

[0075] The valve frame 12 has locking elements 13 distributed around its outer circumference in the form of locking lugs, which serve to fix the valve frame 12 to an opening of a vehicle body component 100.

[0076] In detail, and especially as shown in the sectional views in Fig. 5a and Fig. 6b can be removed, the locking elements 13 reach through the opening of the body component 100 and thus engage behind the periphery of the opening in the vehicle body component 100.

[0077] The valve frame 12 also has a seal 16 surrounding the valve frame 12, which, in the assembled state of the pressure relief valve 10, seals the opening in the vehicle body component all around and serves in particular to seal the valve disc 11 in the closed state.

[0078] The valve frame 12 is preferably injection-molded from a plastic material. The seal 16 is also made of a plastic material and can be formed together with the valve frame 12 in a 2K injection molding process.

[0079] In Fig. Figures 6a to 6c show a variant of the pressure relief valve 10 of the second design. This embodiment differs in particular from the one shown in Fig. 3, Fig. 4 and Fig. 5a to Fig. The embodiment shown in Figure 5b is located at the seal 16 surrounding the valve frame 12. Specifically, a double lip 19, preferably formed together with the valve frame 12 in a two-component injection molding process, is used, between which the peripheral area of ​​the receiving opening of the vehicle body component 100 is accommodated. The double lip seal 19 thus serves to fix the pressure relief valve 10 and to seal it.

[0080] Based on the exemplary embodiments of the pressure relief valves 1, 10 shown in the drawings, it can be seen that the pressure relief valve 1 of the first type ( Fig. 1 and Fig. 2) from the pressure relief valve 10 of the second type ( Fig. 3 to Fig.9) with regard to the design, and in particular with regard to the type of closure, which results in the pressure relief valves 1, 10 of the different types having different response characteristics and different air flow rates as well as different critical opening pressure values ​​and closing pressure values.

[0081] The invention is not limited to the embodiments shown in the drawings, but results from a combination of all the features disclosed herein. Reference symbol list 1 pressure relief valve of the first type 2 cases 2.1 Housing bridge 2.2 Housing rib 3 Flow channel or air channel 4. Flap, in particular valve flap or closure flap 5 Plant area 6 Passage opening 10 Type II pressure relief valves 11 valve plates 12 valve frames 13 Latching element 14 sleeve-shaped element 15 Compression spring / coil spring 16 Seal 17 Clamping ring / clamping washer / retaining washer 18 Countersunk nails 19 Double lip seal 20 bolts / pins 100 vehicle body components

Claims

[1] Vehicle interior ventilation device comprising at least one pressure relief valve (1) of a first type, which is received and / or fixed in a first receiving opening in a vehicle body component (100), and with at least one pressure relief valve (10) of a second type different from the first type, which is received and / or fixed in a second receiving opening in a vehicle body component (100) separated from the first receiving opening. [2] Vehicle interior ventilation device according to claim 1, wherein the first pressure relief valve type differs from the second pressure relief valve type in that - that the at least one pressure relief valve (1) of the first type, in its fully open state, allows an air flow rate that is different from an air flow rate allowed by the at least one pressure relief valve (10) of the second type in its fully open state; and / or - that the at least one pressure relief valve (1) of the first type opens at a first predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, and the at least one pressure relief valve (10) of the second type opens at a second predetermined or definable differential pressure between the vehicle interior and the outside atmosphere that differs from the first opening differential pressure; and / or - that the at least one pressure relief valve (1) of the first type closes at a first predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, and the at least one pressure relief valve (10) of the second type closes at a second predetermined or definable differential pressure between the vehicle interior and the outside atmosphere that differs from the first closing differential pressure. [3] Vehicle interior ventilation device according to claim 1 or 2, wherein the first pressure relief valve type differs from the second pressure relief valve type in that - that the at least one pressure relief valve (1) of the first type, when fully open, allows an air flow rate greater than the air flow rate allowed by the at least one pressure relief valve (10) of the second type when fully open; or - that the at least one pressure relief valve (10) of the second type, in its fully open state, allows an air flow rate that is greater than an air flow rate allowed by the at least one pressure relief valve (1) of the first type in its fully open state; or - that the at least one pressure relief valve (1) of the first type opens at a first predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, and the at least one pressure relief valve (10) of the second type opens at a second predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, wherein the second predetermined or definable opening differential pressure value is greater than the first predetermined or definable opening differential pressure value; or - that the at least one pressure relief valve (1) of the first type closes at a first predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, and the at least one pressure relief valve (10) of the second type closes at a second predetermined or definable differential pressure between the vehicle interior and the outside atmosphere, wherein the second predetermined or definable closing differential pressure value is higher than the first predetermined or definable closing differential pressure value. [4] Vehicle interior ventilation device according to one of claims 1 to 3, wherein the first pressure relief valve type differs from the second pressure relief valve type in that - that the at least one pressure relief valve (1) of the first type can be received and / or fixed in a first receiving opening in a vehicle body component (100) and the at least one pressure relief valve (10) of the second type can be received and / or fixed in a second receiving opening in a vehicle body component (100), wherein the first receiving opening differs from the second receiving opening in terms of its size and / or shape. [5] Vehicle interior ventilation device according to one of claims 1 to 4, wherein the at least one pressure relief valve (1) of the first type is received and / or fixed in a receiving opening formed in a first vehicle body component (100) or in a first outer skin component of the vehicle body, and wherein the at least one pressure relief valve (10) of the second type is received and / or fixed in a receiving opening formed in a second vehicle body component (100) or in a second outer skin component of the vehicle body, wherein the first vehicle body component (100) or the first outer skin component is different from the second vehicle body component (100) or the second outer skin component. [6] Vehicle interior ventilation device according to claim 5, wherein the second vehicle body component (100) or the second outer skin component is a vehicle body component (100) or outer skin component in which a vehicle door, in particular a sliding door, is received; or wherein the second vehicle body component (100) or the second outer skin component is a vehicle body component (100) or outer skin component which adjoins a vehicle body component (100) or outer skin component in which a vehicle door, in particular a sliding door, is received. [7] Vehicle interior ventilation device according to claim 5 or 6, wherein the first vehicle body component (100) or the first outer skin component is a vehicle body component (100) or outer skin component in a rear area of ​​the vehicle. [8] Vehicle interior ventilation device according to any one of claims 1 to 7, wherein the first pressure relief valve type differs from the second pressure relief valve type in that - that the at least one pressure relief valve (1) of the first type is of a design different from the design of the at least one pressure relief valve (10) of the second type. [9] Vehicle interior ventilation device according to claim 8, wherein the design of the first pressure relief valve type differs from the design of the second pressure relief valve type with regard to the type of closure. [10] Vehicle interior ventilation device according to claim 8 or 9, wherein the at least one pressure relief valve (1) of the first type has at least one check valve as a shut-off element, and wherein the at least one pressure relief valve (10) of the second type is designed as a disc or ball check valve. [11] Vehicle interior ventilation device according to any one of claims 1 to 10, wherein the first pressure relief valve type differs from the second pressure relief valve type in that - that the at least one pressure relief valve (1) of the first type has a response behavior which is different from the response behavior of the at least one pressure relief valve (10) of the second type. [12] Vehicle interior ventilation device according to claim 11, wherein the at least one pressure relief valve (1) of the first type is designed as a proportional valve, the opening behavior of which is proportional or at least substantially proportional to the differential pressure between the vehicle interior and the outside atmosphere from the range of a response differential pressure to full opening, and wherein the at least one pressure relief valve (10) of the second type is preferably designed as a full-stroke valve, which opens in particular abruptly and preferably with full stroke when responding. [13] Vehicle interior ventilation device according to one of claims 1 to 12, wherein the first pressure relief valve type differs from the second pressure relief valve type in that — that the at least one pressure relief valve (1) of the first type is a weight-loaded, torsion-spring-loaded and / or gravity-loaded valve and the at least one pressure relief valve (10) of the second type is a spring-loaded valve. [14] Vehicle interior ventilation device according to one of claims 1 to 13, wherein only the at least one pressure relief valve (1) of the first type is provided with a cover forming a silencer chamber. [15] Vehicle with a vehicle body formed from vehicle body components or outer skin components, which at least partially or partially encloses or defines a vehicle interior, and with a vehicle interior ventilation device according to one of claims 1 to 14, which is designed to equalize a differential pressure between the vehicle interior and the outside atmosphere as required.

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