Ventilation system for motor vehicles

Abstract

The invention relates to a ventilation device 8, 9, 10, 11 for a motor vehicle. The ventilation device 8, 9, 10, 11 according to the invention comprises a housing 14 forming a peripheral frame with respect to a median axis 13, a plurality 20 of front fins 31, 32, 41, 51, 52 rotatable relative to the housing 14, and a regulating element 15 for an airflow 100 passing through the ventilation device 8, 9, 10, 11. The regulating element 15 is located behind the front fins relative to the airflow 100 and is configured to assume a first configuration in which the airflow 100 is directed exclusively towards a central zone 60 of the front fins and a second configuration in which the airflow 100 passes through all the front fins. Figure to be published with the abbreviation: Fig. 2

Description

Title of the invention: Ventilation device for a motor vehicle

[0001] The technical context of the present invention is that of ventilation systems for motor vehicles, and in particular motor vehicle passenger compartment ventilators provided with means for adjusting the direction of an air flow. More particularly, the invention relates to a ventilation device for a motor vehicle.

[0002] In the state of the art, ventilation systems for motor vehicles are known, comprising dampers intended for adjusting the flow rate and direction of a blown air flow. Dampers are commonly used for air conditioning motor vehicles and make it possible to regulate a flow of air blown into a passenger compartment of a motor vehicle. These dampers comprise movable fins formed on front sides and rear sides inside frames forming air passages. When air is blown, an air blowing direction is modified at the outlets of the frames by modifying the orientation of these movable fins.

[0003] In particular, patent document US20140302769_Al is known describing a damper, a damper which is suitable for a thin damper having a long, narrow air outlet, which is long in the longitudinal direction and short in the short side direction. A small number of fins are provided along the longitudinal direction inside the air outlet. The damper described in patent document US20140302769_Al comprises: (i) a long, narrow air outlet which is long in a longitudinal direction and short in a short side direction, (ii) a front movable louver which changes the air direction in said short side direction, arranged in an air passage inside said long, narrow air outlet, (iii) a rear movable louver which changes the air direction in said longitudinal direction, arranged upstream of said rear movable louver,(iv) a rear movable louver disposed upstream of said rear movable louver for changing the air direction in said short side direction, and a first rear fin and a second rear fin axially supported along both inner surfaces in said air passage, so as to be rotatable via pivots which are parallel to the longitudinal direction, wherein, when the air direction is changed in a short side direction, said first rear fin is rotated in a short side direction while the other rear fin is held parallel to said air passage, and wherein the front movable louver is rotated in a direction opposite to a direction in which said rear movable louver, is rotated in the direction of the short side to change the direction of the air in the direction of the short side.

[0004] Such a solution makes it possible to regulate the directivity of the air flow with fins located on the front. It is understood that it is interesting to find alternative methods to that described in patent document US20140302769_Al. In particular, it is desirable to gain in performance and comfort by offering several modes of diffusion of the air flow in the passenger compartment of the motor vehicle.

[0005] The object of the present invention is to propose a new ventilation device for a motor vehicle in order to respond at least to a large extent to the preceding problems and to further lead to other advantages.

[0006] Another aim of the invention is to propose an inexpensive ventilation device for a motor vehicle, so as not to negatively impact the cost of the motor vehicle,

[0007] Another aim of the invention is to propose a ventilation device for a motor vehicle which improves the quality of the passenger compartment of the motor vehicle, in particular at the level of a dashboard of the motor vehicle.

[0008] Another object of the invention is to propose a ventilation device for a multi-purpose motor vehicle, which makes it possible to deliver a diffuse and / or concentrated flow of air to passengers installed in the passenger compartment of the motor vehicle.

[0009] According to a first aspect of the invention, at least one of the aforementioned objectives is achieved with a ventilation device for a motor vehicle, the ventilation device comprising (i) a casing forming a peripheral frame with respect to a median axis; (ii) a plurality of front fins movable in rotation relative to the casing; (iii) a member for regulating an air flow passing through the ventilation device, the regulating member being located behind the front fins relative to the air flow and the regulating member being configured to be able to take a first configuration in which the air flow is oriented exclusively towards a central zone of the front fins and a second configuration in which the air flow passes through all the front fins.

[0010] In the ventilation device according to the first aspect of the invention, the air flow regulating member is upstream of the front fins relative to an air flow passing through the ventilation device intended to be blown into a motor vehicle passenger compartment equipped with said ventilation device.

[0011] In the ventilation device according to the first aspect of the invention, the front fins are intended to direct the air flow exiting downstream of the casing. The air flow can thus be deflected in different directions depending on the orientation of the movable fins.

[0012] It is understood that, in the ventilation device according to the first aspect of the invention and upstream of the front fins, the air flow can be more or less concentrated by the regulating member, and that downstream of the front fins, the air flow has been directed by all or part of said front fins. The front fins are also capable of concentrating or splitting the air flow downstream of the front fins.

[0013] In the ventilation device according to the first aspect of the invention, the front fins are movable in rotation around an axis of rotation.

[0014] In the ventilation device according to the first aspect of the invention, the regulating member in the first configuration allows a faster and more concentrated diffusion of the air flow than in the second configuration downstream of the casing.

[0015] When the regulating member is configured in the first configuration, only the central zone of the plurality of front fins is intended to be crossed by the air flow. In the motor vehicle equipped with the ventilation device according to the first aspect of the invention, this configuration allows a so-called “Blast on face” diffusion which avoids bursting the air flow. When the regulating member is configured in the first configuration, the speed of the air flow is increased. The air flow is diffused in a very concentrated manner on the passengers. The air speed felt by the passengers is very high, for example greater than 3 m / s at the head level. The air flow is aggressive and allows rapid cooling. This mode is mainly used in hot climates.

[0016] When the regulating member is configured in the second configuration, the entire plurality of front fins is intended to be crossed by the air flow. In the motor vehicle equipped with the ventilation device according to the first aspect of the invention, this configuration allows the air flow to split to allow gentle diffusion in the passenger compartment. The air flow is diffused very widely over the passengers and in the passenger compartment, the air speed felt by the passengers is low, for example less than 1.5 m / s at head level, while having constant thermal comfort with a non-aggressive air flow. This mode is mainly used in temperate climates.

[0017] Such a ventilation device, provided with a member for regulating an air flow upstream of front fins, makes it possible to alternatively ensure a gentle or powerful diffusion of air in the passenger compartment of the motor vehicle with which it is fitted. Thus, this solution makes it possible to vary, according to requirements, the power of the air flow leaving the casing, while being simple to implement.

[0018] The ventilation device according to the first aspect of the invention advantageously comprises at least one of the improvements below, the characteristics techniques forming these improvements which can be taken alone or in combination:

[0019] - the plurality of front fins comprises (i) a central group comprising a plurality of front fins all parallel to each other, (ii) a left lateral group comprising at least one fin forming a non-zero angle with the front fins of the central group, (iii) a right lateral group comprising at least one fin forming a non-zero angle with the front fins of the central group. It is understood that the lateral direction is understood to be in a direction perpendicular to an orientation of the front fins of the central group. Advantageously, the rotating movable fins can be immobilized so as to adopt this configuration;

[0020] - the at least one front fin of the left side group is oriented in such a way symmetrical with respect to the at least one front fin of the right lateral group. In this configuration, the plurality of fins advantageously makes it possible to split the air flow or alternatively to concentrate the air flow. Advantageously, the at least one front fin of the left lateral group and the at least one front fin of the right lateral group are rotatable and can be immobilized so as to adopt this configuration;

[0021] - the left side group has two front fins, the front fins of the left side group all forming a non-zero angle between them. This configuration advantageously makes it possible to split the air flow or alternatively to concentrate the air flow passing through the left side group. Advantageously, the two front fins of the left side group are rotatable and can be immobilized so as to adopt this configuration;

[0022] - an angle between each front fin of the left side group is between 4° and 8°. Advantageously, each front fin of the left lateral group is rotatable and can be immobilized so as to adopt this configuration. Preferably, the angle between each front fin of the left lateral group is equal to 6°;

[0023] - the right side group has two front fins, the front fins of the right side group all forming a non-zero angle between them. This configuration advantageously makes it possible to split the air flow or alternatively to concentrate the air flow passing through the right side group. Advantageously, the two front fins of the right side group are rotatable and can be immobilized so as to adopt this configuration;

[0024] - an angle between each front fin of the right side group is between 4° and 8°. Advantageously, each front fin of the right side group is rotatable and can be immobilized so as to adopt this configuration. Preferably, the angle between each front fin of the right lateral group is equal to 6°;

[0025] - the front fins are all movable along the same axis of rotation. Alternatively, the front fins are all movable along a particular axis of rotation, each front fin having its own axis of rotation, the axes of rotation of all the front fins being all parallel to each other. In either of the preceding alternatives, the axis of rotation of the front fins is (i) either an axis of rotation allowing said front fins to be oriented in a substantially vertical orientation, the axis of rotation extending substantially horizontally, (ii) or an axis of rotation allowing said front fins to be oriented in a substantially horizontal orientation, the axis of rotation extending substantially vertically;

[0026] - the axis of rotation extends substantially perpendicular to the fins frontal and substantially parallel to a lateral edge of the casing;

[0027] - the air flow regulating member comprises a first deflector located at the level a first lateral edge of the casing and a second deflector located at a second lateral edge of the casing, each deflector being movable in rotation relative to an axis of rotation. Advantageously, the first deflector is fixed integrally to the first lateral edge of the casing and the second deflector is fixed integrally to the second lateral edge of the casing. Also advantageously, the first deflector is opposite the second deflector in the casing;

[0028] - in a first configuration, the first deflector and the second deflector form a non-zero angle with respect to the median axis, so as to direct the air flow towards the central group of front fins. In a second configuration, the first deflector and the second deflector extend parallel to the median axis so as to direct the air flow towards all the front fins. A free end of the first deflector and a free end of the second deflector are closer in the first configuration than in the second configuration. The first configuration makes it possible to concentrate the air flow passing through the casing towards the central group of front fins;

[0029] - the axis of rotation of the first deflector is parallel to the axis of rotation of the second deflector;

[0030] - the axis of rotation of the deflectors is parallel to the axis of rotation of the fins frontals;

[0031] - the regulating organ comprises a control element making it possible to configure said regulating member in its first configuration or its second configuration. The control element makes it possible to control the position of the first deflector relative to that of the second deflector. It is understood that the element of control alternatively allows the regulating member to be configured in one or other of its configurations. The control element is of the mechanical type and / or of the electrical type. Advantageously, the control element makes it possible to coordinate the position of the first deflector relative to that of the second deflector;

[0032] - the control element comprises (i) a wheel mounted movable in translation on a slide extending parallel to the centerline; (ii) a first connecting rod connecting the wheel to the first deflector and a second connecting rod connecting the wheel to the second deflector. When the wheel is located at a first position on the slide, then the regulating member is configured in its first configuration. When the wheel is located at a second position on the slide, then the regulating member is configured in its second configuration;

[0033] - each connecting rod is mounted, at the level of each corresponding deflector, at a distance of the axis of rotation of said deflector.;

[0034] - the control element comprises a motor member configured to drive the control member regulation between its first configuration and its second configuration;

[0035] - the motor member is configured to move the wheel on the slide between its first position and its second position.

[0036] According to a second aspect of the invention, there is provided a motor vehicle comprising at least one ventilation device in accordance with the first aspect of the invention or according to any of its improvements, the ventilation device being mounted on an interior wall of a passenger compartment of the motor vehicle.

[0037] Various embodiments of the invention are provided, integrating according to all of their possible combinations the different optional characteristics set out here.

[0038] Other characteristics and advantages of the invention will become apparent from the following description on the one hand, and from several exemplary embodiments given for informational and non-limiting purposes with reference to the attached schematic drawings on the other hand, in which:

[0039] [Fig-1] illustrates a schematic view of a motor vehicle conforming to the second aspect of the invention;

[0040] [Fig.2] illustrates a schematic top view of a ventilation device for motor vehicle according to the first aspect of the invention;

[0041] [Fig.3] illustrates a schematic view from above of the motor vehicle conforming to the second aspect of the invention implementing the ventilation device according to the first aspect of the invention, a regulating member of said ventilation device being configured in a first configuration;

[0042] [Fig.4] illustrates a schematic view from a passenger compartment of the motor vehicle in accordance with the second aspect of the invention shown in [Fig.3];

[0043] [Fig.5] illustrates an implementation of the ventilation device according to the first aspect of the invention, having a regulating member in the first configuration;

[0044] [Fig.6] illustrates another schematic view of the ventilation device according to the first aspect of the invention shown in [Fig.5];

[0045] [Fig.7] illustrates a schematic view of the motor vehicle according to the first aspect of the invention implementing the ventilation device according to the first aspect of the invention, a regulating member of said ventilation device being configured in a second configuration;

[0046] [Fig.8] illustrates a schematic view from a passenger compartment of the motor vehicle according to the second aspect of the invention shown in [Fig.7];

[0047] [Fig.9] illustrates a first implementation of the ventilation device according to the first aspect of the invention, having a regulating member in the second configuration;

[0048] [Fig. 10] illustrates another schematic view of the ventilation device according to the first aspect of the invention shown in [Fig.9];

[0049] [Fig. 11] illustrates a second implementation of the ventilation device according to the first aspect of the invention, having a regulating member in the second configuration;

[0050] [Fig. 12] illustrates a third implementation of the ventilation device according to the first aspect of the invention, having a regulating member in the second configuration.

[0051] Of course, the features, variants and different embodiments of the invention may be combined with each other, in various combinations, provided that they are not incompatible or mutually exclusive. In particular, variants of the invention may be imagined comprising only a selection of features described below in isolation from the other features described, if this selection of features is sufficient to confer a technical advantage or to differentiate the invention from the prior art.

[0052] In particular, all the variants and all the embodiments described can be combined with each other if nothing prevents this combination from a technical point of view.

[0053] In the figures, the elements common to several figures retain the same reference.

[0054] [Fig. 1] illustrates a schematic view of a motor vehicle 1 according to the second aspect of the invention. In [Fig. 1], the motor vehicle 1 is seen from above, a passenger compartment 2 of said motor vehicle 1 being represented by transparency.

[0055] [Fig.l] shows that the motor vehicle 1 extends along a median longitudinal axis 3. The motor vehicle 1 according to the second aspect of the invention comprises a first row 4 of seats 5 in front of the passenger compartment 2 and a second row 6 of seats 7 behind the first row 4 of seats 5.

[0056] [Fig. 1] shows that the motor vehicle 1 comprises at least one ventilation device 8, 9, 10, 11 in accordance with the first aspect of the invention. In this case, the motor vehicle 1 comprises four ventilation devices 8, 9, 10, 11 in accordance with the first aspect of the invention. More particularly, the motor vehicle 1 comprises a first lateral ventilation device 8, a second lateral ventilation device 9, a first central ventilation device 10 and a second central ventilation device 11. The lateral ventilation devices 8, 9 are located in a position distal to the median longitudinal axis 3 of the motor vehicle 1. The central ventilation devices 10, 11 are located in a position proximal to the median longitudinal axis 3 of the motor vehicle 1.The first lateral ventilation device 8 is arranged symmetrically to the second lateral ventilation device 9 relative to the median longitudinal axis 3 of the motor vehicle 1. The first central ventilation device 10 is arranged symmetrically to the second central ventilation device 11 relative to the median longitudinal axis 3 of the motor vehicle 1.

[0057] [Fig.l] shows that each ventilation device 8, 9, 10, 11 is mounted on an interior wall 12 of the passenger compartment 2 of the motor vehicle 1, the interior wall 12 being located in front of the first row 4 of seats 5. FIGURES 3 and 7 show that the first lateral ventilation device 8 and the first central ventilation device 10 are intended to diffuse an air flow 100 towards one of the seats 5 of the first row 4 of seats 5 located opposite, the second lateral ventilation device 9 and the second central ventilation device 11 are intended to diffuse an air flow 100 towards the other of the seats 5 of the first row 4 of seats 5 located opposite.

[0058] [Fig. 2] illustrates a schematic top view of the ventilation device 8, 9, 10, 11 according to the first aspect of the invention. The ventilation device 8, 9, 10, 11 is shown in longitudinal section in [Fig. 2] and extends along a median axis 13. It is understood that the ventilation device 8, 9, 10, 11 illustrated in [Fig. 2] may be a central ventilation device 10, 11 or a lateral ventilation device 8, 9. In the ventilation device 8, 9, 10, 11, the forward and rearward directions are considered relative to a direction of an airflow passing through the ventilation device 8, 9, 10, 11, the direction of the airflow being represented by an arrow 101 for information purposes in FIGURES 2, 5, 9, 11 and 12.

[0059] [Fig. 2] shows that the ventilation device 8, 9, 10, 11 according to the invention comprises a casing 14, a plurality 20 of front fins 31, 32, 41, 51, 52 and a regulating member 15 intended to regulate the air flow 100 passing through the ventilation device 8, 9, 10, 11 according to the invention. The ventilation device 8, 9, 10, 11 shown in [Fig.2] is configured to be able, alternatively, to diffuse the air flow 100 into the passenger compartment 2 of the motor vehicle 1, in a concentrated or gentle manner. In FIGURES 3 to 6, the ventilation device 8, 9, 10, 11 according to the invention is configured to diffuse an aggressive air flow 100. The aggressive air flow is represented by a first surface 111 in FIGURES 3, 4, 5. In FIGURES 7 to 10, the ventilation device 8, 9, 10, 11 according to the invention is configured to diffuse a gentle air flow 100. The smooth airflow is represented by a second surface 222 in FIGURES 7, 8, 9, the second surface 222 being larger than the first surface 111.

[0060] [Fig.2] shows that the casing 14 of the ventilation device 8, 9, 10, 11 forms a peripheral frame with respect to the median axis 13 of the ventilation device 8, 9, 10, 11. The casing 14 comprises a first lateral edge 16 opposite a second lateral edge 17 of the casing 14. Advantageously in the casing 14, the first lateral edge 16 and the second lateral edge 17 are parallel and separated by a lateral distance of at least 150 mm.

[0061] It is understood that, to form a peripheral frame, the casing 14 comprises an upper edge and a lower edge connected together by the first lateral edge 16 and the second lateral edge 17. To facilitate the readability of [Fig.2], the upper edge of the casing 14 and the lower edge of the casing 14 are not shown.

[0062] [Fig.2] shows that the casing 14 comprises an air inlet 18 and an air outlet 19. The air outlet 19 is also shown in [Fig.l], where said air outlet 19 opens into the passenger compartment 2 of the motor vehicle 1.

[0063] [Fig. 2] shows that the plurality 20 of front fins 31, 32, 41, 51, 52 is rotatable relative to the casing 14. The front fins 31, 32, 41, 51, 52 are each mounted on an axis of rotation 22. All the axes of rotation 22 of the front fins 31, 32, 41, 51, 52 are parallel to each other and included in the same vertical plane 23. In this case, said vertical plane 23 is substantially perpendicular to the lateral edges 16, 17 of the casing 14 and to the median axis 13 of the ventilation device 8, 9, 10, 11.

[0064] [Fig. 2] shows that the front fins 31, 32, 41, 51, 52 comprise a central group 40 of front fins 41 between a left lateral group 30 of front fins 31, 32 and a right lateral group 50 of front fins 51, 52. The central group 40 comprising a plurality of front fins 4L In this case, the central group 40 comprises four front fins 4L The left lateral group 30 comprises at least one front fin 31, 32 forming a non-zero angle with the front fins 41 of the central group 40. In this case, the left lateral group 30 comprises two front fins 31, 32 not parallel to each other, an external front fin 31 and an internal front fin 32. In the left lateral group 30, the internal front fin 32 is between the external front fin 31 and the central group 40, and the external front fin 31 is between the internal front fin 32 and the first lateral edge 16 of the casing 14. The right lateral group 50 comprises at least one front fin 51, 52 forming a non-zero angle with the front fins 41 of the central group 40. In this case, the right lateral group 50 comprises two non-parallel front fins 51, 52, an external front fin 51 and an internal front fin 52. In the right lateral group 50, the internal front fin 52 is between the external front fin 51 and the central group 40, and the external front fin 51 is between the internal front fin 52 and the second lateral edge 17 of the casing 14.In the ventilation device 8, 9, 10, 11 according to the invention, a lateral direction is understood to be in a direction perpendicular to an orientation of the front fins 41 of the central group 40.

[0065] FIGURES 2, 5, 9, 11 and 12 illustrate examples of relative positioning of the front fins 31, 32, 41, 51, 52 in the ventilation device 8, 9, 10, 11 according to the invention. The inclination of each of the front fins 31, 32, 41, 51, 52 forms an angle measured between a plane of the front fin considered and the median axis 13 of the ventilation device 8, 9, 10, 11. The values ​​expressed here are in absolute value. FIGURES 2, 5, 9, 11 and 12 show that the front fins 41 of the central group 40 are all parallel to each other. The front fins 31, 32 of the left lateral group 30 all form a non-zero angle between them. The front fins 51, 52 of the right side group 50 all form a non-zero angle between them.

[0066] In FIGURES 2, 5 and 9, the front fins 31, 32 of the left side group 30 are oriented symmetrically with respect to the front fins 51, 52 of the right side group 50.

[0067] The configuration illustrated in [Fig.l 1] is intended to direct an air flow 100 passing through the ventilation device 8, 9, 10, 11 according to the invention to the left of the median axis 13, in other words to the left of the seat 5 located opposite said ventilation device 8, 9, 10, 11. The external fin 31 of the left lateral group 30 is inclined at 42°, the internal fin 32 of the left lateral group 30 is inclined at 36°, the front fins 41 of the central group 40 are inclined at 30°, the internal front fin 52 of the right lateral group 50 is inclined at 24° and the external front fin 51 of the right lateral group 50 is inclined at 18°.

[0068] The configuration illustrated in [Fig. 12] is intended to direct an air flow 100 passing through the ventilation device 8, 9, 10, 11 according to the invention to the right of the median axis 13, in other words to the right of the seat 5 located opposite said ventilation device 8, 9, 10, 11. The external fin 31 of the left lateral group 30 is inclined at 18°, the internal fin 32 of the left lateral group 30 is inclined at 24°, the fins 41 of the central group 40 are inclined at 30°, the internal front fin 52 of the right lateral group 50 is inclined at 36° and the external front fin 51 of the right lateral group 50 is inclined at 42°.

[0069] [Fig. 2] shows that the regulating member 15 is located behind the plurality 20 of front fins 31, 32, 41, 51, 52 relative to the direction of the air flow 100. The regulating member 15 of the air flow 100 comprises a first deflector 61 located at the first lateral edge 16 of the casing 14 and a second deflector 62 located at the second lateral edge 17 of the casing 14.

[0070] [Fig. 2] shows that the first deflector 61 and the second deflector 62 each comprise a free edge 63 and an axis of rotation 66 opposite the free edge 63, each deflector 61, 62 being movable in rotation relative to the axis of rotation 66 so as to allow the free edge 63 to move away from the lateral edge 16, 17 of the casing 14 to which the deflector 61, 62 in question is securely fixed. The axis of rotation 66 of the first deflector 61 is parallel to the axis of rotation 66 of the second deflector 62. [Fig. 2] shows that the axis of rotation 66 of each of the deflectors is parallel to the axis of rotation 22 of the front fins 31, 32, 41, 51, 52.

[0071] FIGURES 6 and 10 show that, in the ventilation device 8, 9, 10, 11 according to the invention, the regulating member 15 comprises a control element 70 making it possible to configure said regulating member 15 in a first configuration 71, shown in FIGURES 5 and 6, or in a second configuration 72, shown in FIGURES 9 and 10. The control element 70 is located outside the air flow 100.

[0072] FIGURES 6 and 10 show that the control element 70 comprises a wheel 73 mounted to move in translation on a slide 74 which extends parallel to the median axis 13. The control element 70 further comprises a first connecting rod 75 connecting the wheel 73 to the first deflector 61 and a second connecting rod 76 connecting the wheel 73 to the second deflector 62. The regulating member 15 passes from the first configuration 71, shown in [Fig. 6], to the second configuration 72, shown in [Fig. 10], and vice versa, when the wheel 73 is moved in translation on the slide 74, respectively from a first position 81 to a second position 82.

[0073] [Fig. 5] shows the regulating member 15 configured in its first configuration 71, with a wheel 73 illustrated in [Fig. 6] in the first position 81, makes it possible to move the free edges 63 of the deflectors 61, 62 away from the lateral edges 16, 17 of the casing 14 to which the deflectors 61, 62 are respectively fixed so that the air flow 100 is oriented exclusively towards a central zone 60 of the front fins 31, 32, 41, 51, 52. In the first configuration 71, the deflectors 61, 62 form a non-zero angle relative to the median axis 13, so as to orient the air flow 100 towards the central zone 60. The air flow 100 is thus accelerated downstream of the deflectors 61, 62. FIGURES 3 and 4 illustrate this accelerated air flow 100 at the outlet of the ventilation device 8, 9, 10, 11 according to the invention, as oriented towards the first row 4 of seats 5, [Fig.4] being a view of the passenger compartment 2 taken from the first row 4 of rear seats 5. FIGURES 3 and 4 show that the air flow 100 is concentrated when the regulating member 15 of the ventilation device 8, 9, 10, 11, shown in [Fig.5], is configured in its first configuration 71. We also speak of “Blast on face” mode for the air flow 100 thus diffused in a concentrated and accelerated manner.

[0074] [Fig. 9] shows the regulating member 15 configured in its second configuration 72, with a wheel 73 illustrated in [Fig. 10] in second position 82, which allows the deflectors 61, 62 to be folded down along the lateral edges 16, 17 of the casing 14 so that downstream of the deflectors 61, 62 the air flow 100 passes through all the front fins 31, 32, 41, 51, 52. In the second configuration 72, the deflectors 61, 62 extend parallel to the median axis 13 so as to direct the air flow 100 towards all the front fins 31, 32, 41, 51, 52. FIGURES 7 and 8 illustrate the air flow 100 at the outlet of the ventilation device 8, 9, 10, 11 according to the invention, as directed towards the first row 4 of seats 5, the [Fig.8] being a view of the passenger compartment 2 taken from the first row 4 of rear seats 5.FIGURES 7 and 8 show that the air flow 100 is diffused in a diffuse and gentle manner when the regulating member 15 of the ventilation device 8, 9, 10, 11, shown in [Fig.9], is configured in its second configuration 72.

[0075] It is understood that, upstream of the front fins 31, 32, 41, 51, 52, the air flow 100 can be more or less concentrated by the regulating member 15, and that downstream of the front fins 31, 32, 41, 51, 52, the air flow 100 has been directed all or part of said front fins 31, 32, 41, 51, 52.

[0076] In summary, the invention relates to a ventilation device 8, 9, 10, 11 for a motor vehicle 1. The ventilation device 8, 9, 10, 11 according to the invention comprises a casing 14 forming a peripheral frame with respect to a median axis 13, a plurality 20 of front fins 31, 32, 41, 51, 52 movable in rotation with respect to the casing 14, a regulating member 15 for regulating an air flow 100 passing through the ventilation device 8, 9, 10, 11, the regulating member 15 being located behind the front fins 31, 32, 41, 51, 52 relative to the air flow 100 and the regulating member 15 being configured to be able to take a first configuration 71 in which the air flow 100 is oriented exclusively towards a central zone 60 of the front fins 31, 32, 41, 51, 52 and a second configuration 72 in which the air flow 100 passes through all the front fins 31, 32, 41, 51, 52.

[0077] Of course, the invention is not limited to the examples which have just been described and numerous adjustments can be made to these examples without departing from the scope of the invention. In particular, the various characteristics, forms, variants and modes embodiments of the invention can be combined with each other in various combinations provided that they are not incompatible or mutually exclusive. In particular, all the variants and embodiments described above can be combined with each other.

Claims

Claims

1. Ventilation device (8, 9, 10, 11) for a motor vehicle (1), the ventilation device (8, 9, 10, 11) comprising: - a casing (14) forming a peripheral frame with respect to a median axis (13); - a plurality (20) of front fins (31, 32, 41, 51, 52) movable in rotation relative to the casing (14); - a regulating member (15) of an air flow (100) passing through the ventilation device (8, 9, 10, 11), the regulating member (15) being located behind the front fins (31, 32, 41, 51, 52) relative to the air flow (100) and the regulating member (15) being configured to be able to take a first configuration (71) in which the air flow (100) is oriented exclusively towards a central zone (60) of the front fins (31, 32, 41, 51, 52) and a second configuration (72) in which the air flow (100) passes through all the front fins (31, 32, 41, 51, 52), characterized in that the regulating member (15) of the air flow (100) comprises a first deflector (61) located at a first lateral edge (16) of the casing (14) and a second deflector (62) located at a second lateral edge (17) of the casing (14), each deflector (61, 62) being movable in rotation relative to an axis of rotation (66), and the regulating member (15) comprises a control element (70) making it possible to configure said regulating member (15) in its first configuration (71) or its second configuration (72), the control element (70) comprising: - a wheel (73) mounted movable in translation on a slide (74) which extends parallel to the median axis (13); - a first connecting rod (75) connecting the wheel (73) to the first deflector (61) and a second connecting rod (76) connecting the wheel (73) to the second deflector (62).

2. Ventilation device (8, 9, 10, 11) according to the preceding claim, in which the plurality of front fins (31, 32, 41, 51, 52) comprises: - a central group (40) comprising a plurality (20) of front fins (41) all parallel to each other; - a left lateral group (30) comprising at least one fin (31, 32) forming a non-zero angle with the front fins (41) of the central group (40); - a right lateral group (50) comprising at least one fin (51, 52) forming a non-zero angle with the front fins (41) of the central group (40).

3. Ventilation device (8, 9, 10, 11) according to the preceding claim, wherein the at least one front fin (31, 32) of the left lateral group (30) is oriented symmetrically with respect to the at least one front fin (51, 52) of the right lateral group (50).

4. A ventilation device (8, 9, 10, 11) according to any one of claims 2 or 3, wherein the left side group (30) comprises two front fins (31, 32), the front fins (31, 32) of the left side group (30) all forming a non-zero angle between them.

5. Ventilation device (8, 9, 10, 11) according to any one of the preceding claims, in which the front fins (31, 32, 41, 51, 52) are all movable along the same axis of rotation (22).

6. Motor vehicle (1) comprising at least one ventilation device (8, 9, 10, 11) according to any one of the preceding claims, the ventilation device (8, 9, 10, 11) being mounted on an interior wall (12) of a passenger compartment (2) of the motor vehicle (1).

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