Ventilation system for a vehicle

Abstract

Ventilation Device for a Vehicle The present invention relates to a ventilation device for a vehicle, comprising: a body element having an external face, facing outwards from the vehicle, and an internal face, opposite the external face, said body element comprising at least one ventilation zone (6) comprising a plurality of openings passing through the body from the external face to the internal face, the body element extending in a general transverse direction T, a movable shutter between a closed position, in which the shutter closes the openings of the ventilation zone (6), and an open position, in which the shutter is away from said openings (8), characterized in that the shutter has a surface area greater than the surface area of ​​the ventilation zone. Figure for the abstract: Fig 1

Description

Title of the invention: Ventilation device for a vehicle

[0001] The present invention relates to a ventilation device for a vehicle of the type comprising a body element, comprising an external face, facing outwards from the vehicle, and an internal face, opposite to the external face, said body element comprising at least one ventilation zone comprising a plurality of openings passing through the body from the external face to the internal face, the body element extending in a general transverse direction T, a shutter movable between a closed position, in which the shutter closes the openings of the ventilation zone, and an open position, in which the shutter is away from said openings.

[0002] The invention relates in particular to a ventilation device for managing airflow inside a vehicle, especially the engine block, allowing both cooling of the engine and modification of the vehicle's aerodynamics. Such a ventilation device generally comprises several flaps arranged in an air intake opening of a bodywork element, such as a bumper panel. The flaps control the airflow entering the vehicle by pivoting around their axes relative to the opening to allow more or less air to pass through. These flaps have a shape adapted to the opening in which they are mounted.

[0003] Thus, such devices require shutters with dimensions adjusted to the dimensions of the body panel on which the shutters are mounted, in particular to adapt to the shape and dimensions of the air intake opening. This implies having to manufacture a shutter design for each vehicle model comprising a different body panel, which leads to additional production and logistics costs due to the multitude of shutter designs.

[0004] One of the aims of the invention is to overcome these drawbacks by proposing a ventilation device adapted to several vehicle models.

[0005] To this end, the invention relates to a ventilation device for a vehicle of the aforementioned type, characterized in that the shutter has a surface area greater than the surface area of ​​the ventilation zone.

[0006] The invention proposes using a single shutter to open or close the openings in the ventilation zone, the shutter having a surface area greater than that of the ventilation zone. Thus, the same shutter can be adapted to several ventilation zones of different shapes and / or dimensions, making it possible to use the same shutter model for different elements of the bodywork. Indeed, it is sufficient that the surface area of ​​the shutter, when closed, covers all the openings in the ventilation area to ensure the normal operation of the ventilation system. Such a shutter can therefore be used on several vehicle models.

[0007] According to other advantageous aspects of the invention, the ventilation device may comprise one or more of the following features, taken individually or in any technically possible combination:

[0008] - the shutter flap is mounted on the inner face side of the element bodywork;

[0009] - the inner face of the bodywork element is substantially flat and the outer face is noticeably curved, at least in the ventilation area;

[0010] - the thickness of the body of the body element varies according to the transverse direction between the inner face and the outer face at least in the ventilation zone so as to define the inner face substantially flat and the outer face substantially curved;

[0011] - the shutter flap is substantially flat, so that said flap is applied against the inner face of the bodywork element in the closed position;

[0012] - the shutter flap is mounted to rotate freely between the closed position and the open position around an axis of rotation extending along a transverse edge of the ventilation zone, said transverse edge extending along the transverse direction T;

[0013] - the bodywork element comprises at least two ventilation zones, said zones ventilation extending on either side of a central axis along the transverse direction T of the bodywork element, the central axis extending along an elevation direction substantially perpendicular to the transverse direction;

[0014] - the device comprises two shutter flaps, each shutter flap being movable between a closed position, in which each shutter closes one of the two ventilation zones and an open position in which each shutter is moved away from the openings of one of the two ventilation zones;

[0015] - the two flaps are fixed to the same axis of rotation;

[0016] - each ventilation zone extends along the transverse direction T from a lateral edge, extending along the Z elevation direction, to the central axis, the thickness of the body increasing from said transverse edge to the central axis so that the inner face of each ventilation zone is substantially flat and the outer face of each ventilation zone is substantially curved.

[0017] The invention will become clearer upon reading the following description, given solely by way of non-limiting example, and made with reference to the drawings in which:

[0018] [Fig. 1] [Fig. 1] is a schematic representation from the rear of a ventilation device according to the invention, with one flap in the open position.

[0019] [Fig.2] [Fig.2] is a schematic representation of the ventilation device of the [Fig. 1], with the shutter in the closed position,

[0020] [Fig.3] [Fig.3] is a schematic perspective representation of a part of a ventilation zone of a ventilation device according to another embodiment of the invention, and

[0021] [Fig.4] [Fig.4] is a schematic perspective representation of the device ventilation of the [Fig.l], the flap being in the closed position.

[0022] With reference to Figures 1 and 2, a vehicle ventilation device 1 is described, extending primarily along a transverse direction T and an elevation direction Z, substantially perpendicular to the transverse direction. The transverse direction T corresponds, for example, to the width of the vehicle and the elevation direction Z corresponds, for example, to the height of the vehicle when the ventilation device 1 is mounted on a vehicle. A longitudinal direction L, substantially perpendicular to the transverse direction T and the elevation direction Z, is also defined, corresponding, for example, to the length of the vehicle.

[0023] The bodywork element 4 is, for example, intended to be mounted at the front of a vehicle. In a particular embodiment, this bodywork element is a front bumper skin.

[0024] The ventilation device 1 comprises at least one bodywork element 4 defining at least one ventilation zone 6 and a shutter 2 for the ventilation zone 6. The ventilation zone 6 is delimited by a frame 10 extending around one or more ventilation zones 6, as will be described in more detail later.

[0025] The bodywork element defines an inner face 7, facing towards the vehicle, and an outer face 9, facing away from the vehicle when the bodywork element is mounted on a vehicle. The thickness e of the bodywork element is defined as the distance between the outer face 9 and the inner face 7, measured along the longitudinal direction L.

[0026] The ventilation zone 6 forms an air intake zone for the vehicle's engine block. For this purpose, the ventilation zone comprises a plurality of openings 8. These openings pass through the body element 4 from both sides, so that they open on one side onto the inner face 7 and on the other onto the outer face 9. The ventilation zone 6 is, for example, delimited by a frame 10 extending around one or more ventilation zones 6, as will be described in more detail later. In other words, all the air passage openings 8 are contained within the frame 10.

[0027] The openings 8 can be of any shape, for example polygonal or circular. As can be seen in Figures 1 and 3, the openings 8 do not necessarily all have the same shape and / or the same orientation and / or the same dimensions. Thus, the openings 8 can be defined so as to give a particular appearance to the trim element.

[0028] Two adjacent openings 8 are separated from each other by at least one branch 11, for example made of material with the bodywork element 4.

[0029] All of these openings together form a grid extending inside the frame 10 and passing through the bodywork element 4. The surface area of ​​the ventilation zone 6, defined by the total surface area of ​​the openings 8 and the arms 11 forming the ventilation zone 6, can be more or less large; that is to say, the ventilation zone 6 occupies a greater or lesser surface area of ​​the bodywork element depending on the transverse direction T and the elevation direction Z. The ventilation zone 6 extends, for example, substantially in the center of the bodywork element 4 along the transverse direction T and extends over most of the bodywork element 4 along the elevation direction Z.

[0030] The inner face 7 of the ventilation zone 6 is, for example, substantially flat and extends substantially in a plane extending along the transverse direction T and the elevation direction Z. In one embodiment, the outer face of the body element 4 is curved so as to form a domed body element. Alternatively, the body element may have any curvature.

[0031] In this case, in order to have a substantially flat inner face 7 of the ventilation zone while the opposite outer face is curved, the thickness e of the body element 4 is variable in the ventilation zone 6 to compensate for the gap formed between the inner face 7 and the outer face 9 of the ventilation zone. For example, the outer face 9 forms a concavity facing inwards towards the vehicle, that is to say, the outer face 9 gradually moves away from the inner face 7 from the lateral edges 12 of the body element towards the center of the body element in the transverse direction T. In this case, the thickness of the body element gradually increases from the lateral edges towards the center. As shown in [Fig.3], the thickness el of the portion of the element closer to the center of the bodywork element is greater than the thickness e2 of a portion closer to a lateral edge 12.In other words, the closer an opening 8 of the ventilation zone 6 is to the center of the body element 4 in the transverse direction, the greater the thickness of the arms 11 surrounding this opening. Moreover, as shown in [Fig. 3], the arm 11A closest to the center delimiting a particular opening 8 has a greater thickness than the arm 11B furthest from the center delimiting this same opening 8.

[0032] According to different embodiments, several ventilation zones can be provided, distributed along the transverse direction T. Thus, according to the embodiment shown in Figures 1 and 2, the ventilation device comprises two ventilation zones 6A, 6B separated from each other by a central branch 14 extending substantially at the centre of the bodywork element 4 along the transverse direction T and extending along the elevation direction Z. The two ventilation zones 6 are for example substantially symmetrical to each other with respect to the central branch 14, as particularly visible on [Fig.1].

[0033] On the inner face 7 of the bodywork element 4, the frame 10 may include one or more fastening elements 13 for attaching the bodywork element 4 to the vehicle body. Also on the inner face 7, the bodywork element 4 may have one or more technical zones 17 extending around the frame 10, i.e., outside the ventilation zone(s) 6, and allowing the bodywork element 4 to be attached to its surroundings and / or allowing the attachment of components to the bodywork element.

[0034] According to one embodiment, the interior of the frame 10 defines an imprint in the inner face 7 of the bodywork element. In other words, the ventilation zone(s) 6 extending into the frame 10 are recessed relative to the edges of the frame 10 in the inner face 7. Put another way, the edges of the frame 10 project outwards towards the vehicle relative to the ventilation zone(s) 6 extending inside the frame 10.

[0035] According to one embodiment, the ventilation device 1 comprises a single shutter 2 per ventilation zone 6. In other words, according to this embodiment, there are as many shutters 2 as there are ventilation zones 6. Thus, according to the embodiment shown in the figures, the ventilation device comprises two shutters 2. Alternatively, the same shutter 2 can be used for two or more ventilation zones 6.

[0036] Thus, according to the embodiment described above in which the bodywork element 4 comprises two ventilation zones 6A, 6B separated by a central branch 14, the ventilation device comprises, for example, two shutter flaps 2A, 2B, each corresponding to one of the ventilation zones 6.

[0037] The shutter flap or each shutter flap 2 has, for example, a substantially flat plateau shape and extends in a generally transverse direction.

[0038] The shutter flap 2 is movable between an open position, in which it is away from the openings, thus allowing air to pass through the openings 8 of the ventilation zone, and a closed position, in which it closes the ventilation zone 6 so as to close all the openings of the ventilation zone 6 and block the airflow.

[0039] To this end, the shutter flap 2 has a larger surface area than the corresponding ventilation surface 6, so that it closes all the openings in the ventilation zone 6 in the closed position. Furthermore, providing a shutter flap 2 with a larger surface area than the ventilation zone 6 allows this flap to be adapted to other bodywork elements 4, which have by For example, a ventilation zone 6 with the same surface area but whose openings have a different shape or a smaller surface area. In other words, the shutter flap 2 is not specific to a particular model of body element 4 and can be used with body elements 4 whose ventilation zone(s) have different dimensions and / or shapes.

[0040] For example, in the open position, the shutter extends in a plane extending along the longitudinal direction L and the transverse direction T, and, in the closed position, the shutter extends in a plane extending along the transverse direction T and the elevation direction Z.

[0041] Since the shutter flap 2 and the inner face 7 are each substantially flat, as described above, the shutter flap 2 is in planar contact with the inner face 7 of the ventilation zone 6 in the closed position, which ensures effective sealing of the openings in the ventilation zone 6. Furthermore, the shutter flap 2 does not need to be adapted to a particular shape of the inner face 7 of the ventilation zone 6, so the same shutter flap 2 can be used for several body panel designs, as described above. In other words, it is possible to oversize the shutter flaps 2 and ensure planar contact with the ventilation zones 6, thus allowing them to be mounted on different body panels.

[0042] This advantage linked to the invention then makes it possible to simplify the production process by pooling functional parts between several vehicles, without harming the aesthetic aspect, which is based on the bodywork element 4.

[0043] When the inside of the frame 10 forms an impression, as described previously, the shutter flap 2 is for example received in the impression in the closed position so as to be flush with the edges of the frame 10 in the closed position, as more particularly visible in [Fig.4].

[0044] The shutter flap 2 is, for example, rotationally movable between the closed and open positions. More particularly, the shutter flap 2 is, for example, integral with a shaft 3 articulated to the bodywork element and forming the axis of rotation of the shutter flap.

[0045] In the case where the shutter flap 2 is rotationally movable, at least one actuator 16 allows the rotation axis formed by the shaft 3 to be driven by any drive means. In particular, this actuator may be located, for example, on a fastening element extending projecting from the inner face of the bodywork element 4 in the longitudinal direction, as shown in [Fig. 4].

[0046] In the illustrated embodiment [Fig. 1] and 2, the axis of rotation extends along a lower transverse edge of the frame 10, so that the shutter extends under the ventilation area 6 in the elevation direction Z in the open position. Alternatively, The shaft 3 can extend along an upper transverse edge of the frame 10 so that the shutter extends above the ventilation area 6 in the open position. The mounting element receiving the actuator 16 extends, for example, beyond the edge of the frame 10 along which the shaft 3 extends.

[0047] According to one embodiment, when several shutters are provided, these are for example attached to the same shaft 3 so that all the shutters are moved simultaneously between the open position and the closed position.

[0048] In the case where several shutter flaps 2 are provided, these can be rotated by means of one or more actuators 16, controlled for example synchronously, in order to ensure the simultaneous movement of the flaps.

[0049] In particular, as shown in [Fig. 4], a single actuator 16 can be located substantially at the central branch. This then drives the flaps 2A and 2B synchronously via their common axis of rotation.

[0050] Alternatively, each shutter 2 is rotationally movable by means of its own shaft 3 so that the shutters 2 can be actuated independently of each other between the closed and open positions. Said shutter is, for example, mounted on the inner face of the body element 4. For this purpose, one of the transverse edges of the frame 10, more particularly the lower transverse edge of the frame 10 according to the embodiment shown in the figures, includes one or more guides 15 extending on the inner face 7 of the body element and receiving the shaft(s) 3 of the shutter(s) 2 and guiding the rotation of the shutter(s) between the closed and open positions.

[0051] According to a particular embodiment, the shutter flap 2 can take any intermediate position between the closed position and the open position, in order to regulate the airflow entering the vehicle continuously between zero and total closure.

Claims

Demands

1. Ventilation device (1) for a vehicle, comprising: - a body element (4), comprising an external face (9), facing outwards from the vehicle, and an internal face (7), opposite to the external face (9), said body element (4) comprising at least one ventilation zone (6) comprising a plurality of openings (8) passing through the body from the external face (9) to the internal face (7), the body element (4) extending in a general transverse direction T, - a shutter (2) movable between a closed position, in which the shutter closes the openings (8) of the ventilation zone (6), and an open position, in which the shutter (2) is away from said openings (8), characterized in that the shutter (2) has a surface area greater than the surface area of ​​the ventilation zone (6).

2. Ventilation device (1) for a vehicle according to claim 1, wherein the shutter flap (2) is mounted on the inner face (7) side of the body element (4).

3. Ventilation device (1) according to claim 1 or 2, wherein the inner face (7) of the bodywork element (4) is substantially flat and the outer face (9) is substantially curved at least in the ventilation area (6).

4. Ventilation device (1) according to claim 3, wherein the thickness of the body of the body element varies in the transverse direction between the inner face and the outer face at least in the ventilation zone (6) so as to define the inner face (7) substantially flat and the outer face (9) substantially curved.

5. Ventilation device (1) according to claim 3 or 4, wherein the shutter flap (2) is substantially flat, so that said flap is applied against the inner face of the bodywork element (4) in the closed position.

6. A ventilation device (1) according to claim 5, wherein the shutter (2) is mounted to rotate between the closed and open positions about an axis of rotation extending along from a transverse edge of the ventilation zone, said transverse edge extending along the transverse direction T.

7. Ventilation device (1) according to any one of claims 1 to 6, wherein the bodywork element comprises at least two ventilation zones (6), said ventilation zones extending on either side of a central axis along the transverse direction T of the bodywork element (4), the central axis extending along an elevation direction substantially perpendicular to the transverse direction.

8. Ventilation device according to claim 7, comprising two shutter flaps (2A) (2B), each shutter flap being movable between a closed position, in which each flap closes one of the two ventilation zones (6) and an open position in which each shutter flap (2) is moved away from the openings of one of the two ventilation zones (6).

9. Ventilation device (1) according to claim 8, wherein the two flaps (2A) (2B) are fixed to the same axis of rotation.

10. Ventilation device (1) according to any one of claims 7 to 9, wherein each ventilation zone (6) extends along the transverse direction T from a lateral edge, extending along the elevation direction Z, to the central axis, the thickness of the body increasing from said lateral edge towards the central axis such that the inner face (7) of each ventilation zone (6A) (6B) is substantially flat and the outer face (9) of each ventilation zone (6) is substantially curved.

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