FR3082458A1 - HOUSING FOR MOUNTING ON A MOTOR VEHICLE DOOR AND DOOR COMPRISING SUCH A HOUSING - Google Patents

Abstract

The invention relates to a housing (30) intended to be mounted on a door (4) of a motor vehicle comprising - a first air inlet (35) for admitting a first air flow (FR) into the case (30), - an air outlet (36), - a chamber (37), delimited by at least one partition (38), arranged inside the case (30), - a second air inlet (39) for direct admission of a second air flow (FE) inside the chamber (37), the first air inlet (35), the chamber (37) and the air outlet (36) being fluidly connected. According to the invention, the housing (30) comprises at least one movable flap (64, 74, 78). The invention also relates to an assembly of a door (4) comprising a support (61) for a housing and such a housing (30)

Description

The present invention relates to a housing intended to be mounted on a door of a motor vehicle. This device is part of an air distribution device for an automobile type vehicle.

Generally, a motor vehicle is equipped with a ventilation, heating and / or air conditioning system which makes it possible to heat treat the air and then send it to the passenger compartment of the vehicle. The ventilation, heating and / or air conditioning system is configured to achieve a set thermal comfort responding to a request from a user, and for example a given temperature of the air present in one zone or the other of the vehicle interior. For this, the ventilation, heating and / or air conditioning system draws in outside air and / or air from the passenger compartment and then treats it by successive passages in heat exchangers in particular so that it reaches conditions of temperature and / or fan speed determined to get closer to the set thermal comfort. The treated air is then projected into the passenger compartment by means of aerators suitably arranged for the supply of treated air to a particular area of the passenger compartment. Depending on whether a supply of treated air is aimed at the front seats or the rear seats, these aerators can be arranged at the dashboard, at the central console or else in the side pillars of the vehicle.

The ventilation, heating and / or air conditioning system is required to process a significant amount of air before reaching the set thermal comfort. Nowadays, users demand to reach this set thermal comfort faster, without altering the air quality of the passenger compartment. Automobile manufacturers and equipment suppliers must therefore offer ventilation, heating and / or air conditioning systems that meet these requirements without incurring excessive costs, while remaining compact, light and easy to use. implantation. Another constraint is the standardization of vehicles, where manufacturers must be able to adapt to the needs of the consumer and whether or not to implement such a system according to the wishes of the purchaser of the vehicle. Finally, a final constraint is that the system must be able to adapt to the needs of the occupants of the vehicle, namely being able to send flows or not with different flow rates.

The object of the present invention is therefore to provide a solution for improving both the air distribution and the thermal comfort of the passenger compartment, without oversizing the ventilation, heating and / or air conditioning system and which can be easily assembled or disassembled and which can easily guarantee air flow management by varying the air flow between a minimum flow and a maximum flow.

In this context, the invention relates to a housing, in particular removable, intended to be mounted on a door of a motor vehicle comprising

- a chamber, delimited by at least one wall, arranged inside the housing

- a first air inlet for direct admission of a first air flow into the room,

- a second air inlet for admitting a second air flow into the housing,

- an air outlet, the second air inlet, the chamber and the air outlet being fluidly connected. According to the invention, the housing comprises at least one movable flap.

Thus, the invention allows the two air flows to mix, which ensures better mixing of the air in the passenger compartment, thereby improving user comfort. In fact, by increasing the amount of air circulated, thermal mixtures between the different air flows are faster. The housing corresponds to an easily graspable element which can be easily mounted or removed from a vehicle door, the movable flap depending on its inclination will allow the air flow to flow or not depending on its positioning and its degree of tilt to adopt the thermal comfort desired by the occupants of the vehicle.

According to one or more characteristics of the invention, which can be taken alone or in combination, provision may be made for:

- the room includes a vane extending inside the room;

- the housing has a curved shape;

- a duct is connected to the second air inlet for direct admission of the second air flow inside the chamber, the second air flow coming from a heating, ventilation and / or air conditioning system ;

- the duct includes bellows to guarantee the watertightness of the duct at the door;

- The chamber has an oblong section;

a channel for the at least partial flow of the first and second air flow extends from the first air inlet to the air outlet and is delimited by the walls of the housing and said at least one partition of the bedroom ;

- the chamber opens into the canal by a narrowing;

the housing comprises a first part, a chamber, corresponding to the supply of the first flow of treated air coming from the heating, ventilation and / or air conditioning system, this chamber opening into a second part of the housing arranged outside of the room by a narrowing;

- the narrowing extends all along the chamber, in a direction followed by the flow of treated air in the mouth of the second air inlet or in the supply duct connected to this second air inlet;

- the housing includes a mixing zone in which the second flow of treated air from the heating, ventilation and / or air conditioning system and the first flow of air from the passenger compartment are intended to mix by licking the partition forming the chamber along a path tangential to this partition;

- a first movable flap is arranged at the level of the first air inlet;

- the first movable flap comprises a sliding door within a rail;

- a second movable flap is arranged at the level of the second air inlet;

- A first movable flap is arranged at the level of the first air intake and a second movable flap is arranged at the level of the second air intake;

- a third movable flap is arranged at the air outlet.

The invention also relates to an assembly of a vehicle door comprising a support for a housing and of a housing as described above.

According to one or more characteristics of the invention, which can be taken alone or in combination, provision may be made for:

- The door comprises at least one trim panel and a door body together forming the door, said trim panel and the door body defining between them a hollow body through which the air flow can flow, a fourth flap mobile being arranged within the hollow body;

- The hollow body comprises at least two outlet openings, the fourth movable flap being arranged between said outlet openings so as to be able to selectively direct the air flow towards at least one of said outlet openings;

- an additional air inlet mouth corresponding to a porous wall opening into the hollow body, a fifth movable flap being arranged at this air inlet mouth.

Other characteristics, details and advantages of the invention will emerge on reading the description given below for information only in relation to the drawings in which:

FIG. 1 is a perspective representation of a part of the housing according to the invention,

FIG. 2 is a perspective representation of the housing according to an embodiment according to the invention,

- Figure 3 is a schematic sectional representation of the housing according to an embodiment of the invention,

FIG. 4 is a partial schematic representation in section of a passenger compartment of a motor vehicle and of a vehicle door comprising a housing according to an exemplary embodiment of the present invention,

FIG. 5 is a schematic perspective representation of part of the passenger compartment of the motor vehicle and of the door comprising the housing,

- Figure 6a is a schematic sectional representation of the housing according to another embodiment of the invention,

- Figure 6b a schematic sectional representation of the housing according to another embodiment of the invention,

FIG. 7 is a partial schematic representation in section of a passenger compartment of a motor vehicle and of a door of the vehicle with a housing according to an exemplary embodiment of the present invention,

- Figure 8 a schematic sectional representation of the housing according to another embodiment of the invention.

It should first be noted that the figures show the invention in detail to implement the invention, said figures can of course be used to better define the invention if necessary.

In the description which follows, the relative concepts such as "internal", "external", "upper", "lower", "front" or "rear" are defined with respect to a passenger compartment of the motor vehicle and to the vehicle itself. even. The notion of "internal" according to this reference signifies that the element considered is located or is directed towards the passenger compartment, while the notion of "external" according to this reference signifies that the element considered is located or is directed towards outside of the motor vehicle, moving away from the passenger compartment. The concept of "superior" according to this reference signifies that the element considered is located or is directed towards the roof of the motor vehicle, while the notion of "lower" according to this reference sign means that the element considered is located or directed towards the floor of the motor vehicle. A longitudinal axis L is defined as the axis along which the motor vehicle extends along its length, the longitudinal axis L being parallel to an axis of advance of the motor vehicle during running. In the description which follows, reference will also be made to an orientation as a function of a vertical axis V defined as being the axis perpendicular to the floor of the vehicle during running and of a transverse axis T defined as being the axis perpendicular to both the longitudinal axis L and the transverse axis T. We then understand that the concepts "internal" and "external" are understood along the transverse axis T, the concepts of "upper" and "lower" are understood along the vertical axis V and the concepts of "front" and "rear" are understood in relation to the longitudinal axis L, the "front" of the vehicle being defined as being the part of the vehicle in front of the driver in driving condition and "the rear" being the part behind the back of the driver's seat. The terms "upstream" and "downstream" are defined in relation to the flow of an air flow.

Figures 1 and 2 illustrate a housing 30 according to the present invention. The housing is defined by a set of walls 31, here four in number, arranged so as to define an internal volume 32, or internal space. As illustrated in FIGS. 1 and 2, the housing 30 here corresponds to a rectangular parallelepiped with four adjoining walls 31 and the two other opposite faces 33 being empty or having a grid 34. In other words, the housing 30 comprises therefore four walls 31 which define an internal volume 32, or a cavity, the housing further comprises a first air inlet 35 to allow a first FR air flow to enter the housing 30 and an air outlet 36 for allowing an air flow FS to come out of the housing 30. The housing 30 therefore comprises a channel 42 for the flow of the air flow FR from the first air inlet 35 to the air outlet 36.

The housing 30 according to the invention further comprises a chamber 37, delimited by at least one partition 38, arranged inside the housing 30 within the internal volume 32. The housing 30 further comprises a second air inlet 39 for direct admission of a second flow of air FE into the chamber 37. The channel 42 corresponds to the internal volume 32 of the housing 30 located outside the chamber 37, in other words, the channel 42 is delimited by the walls 31 of the housing 30 and by said partition 38 of the chamber 37. The chamber 37 has at least one surface merged with a wall 31 of the housing 30, the second air inlet 39 being arranged on this surface.

The housing 30 according to the invention is arranged so that the first air inlet 35, the chamber 37 and the air outlet 36 are fluidly connected. In other words, the chamber 37 has an opening 40 arranged so as to allow the second air flow FE to flow out of the chamber 37 and to mix with the first air flow FR within the internal volume 32 and of the channel 42. In other words, the first air flow FR enters the housing through the air inlet 35 and flows through the housing 30 towards the air outlet 36, the second air flow FE enters directly inside the chamber 37 then flows through the opening 40 within the housing 32 in the channel 42. The chamber 37 opens into the channel 42 so as to allow the second flow of air FE to mix with the first flow of air FR. In other words, the housing 30 comprises a channel 42 for the flow of the first and second air flows FE, FR and extends from the first air inlet 35 to the outlet 36 is delimited by the walls 31 of the housing 30 and said at least one partition 38 of the chamber 37.

According to the invention, the first air flow FR can for example come from the passenger compartment of the vehicle while the second air flow FE can for example come from a ventilation, heating and / or air conditioning system ( not shown) located upstream of the housing. In order to respond to a request from a user on the set thermal comfort of the passenger compartment 5, the temperature of the second treated air flow FE can vary, in particular between hot, cold and temperate, as well as the speed of the second FE air flow treated by varying the fan speed of the ventilation, heating and / or air conditioning system. The housing 30 according to the invention allows the air in the passenger compartment 5 to mix with treated air coming from the ventilation, heating and / or air conditioning system, which ensures better mixing of the air from the passenger compartment thus improving user comfort, by ensuring a renewal of the air in the passenger compartment and by achieving more quickly a set thermal comfort. In fact, by increasing the amount of air circulated, thermal mixtures between the different air flows are faster.

In order to allow better mixing between the two air flows FE, FR, the chamber 37 the chamber includes a blade 46 extending within its internal space. This blading 46 corresponds to an internal partition, in other words, a rib, gutter, protuberance or protuberance, which partly extends inside the chamber 37. The blading 46 has a shape of a quarter circle and serves deflecting the path of the second FE air flow, thereby inducing turbulence. The second air flow FE enters through the second air inlet 39 within the chamber 37 in the upper part 48 of the chamber 37 located above the airfoil 46. Said air flow FE is then directed towards the opening 40 in order to be able to open into the channel 42, the opening being arranged in the lower part 49 of the chamber located below the blade 46.

As illustrated in FIG. 3, the chamber 37 opens into the channel 42 by a narrowing 51. In other words, the chamber 37 comprises an opening 40 allowing the second air flow FE to flow from the chamber 37 into the channel 42. This opening 40, extending all along the partition 38, comprises a narrowing 51 of the passage section so as to create a pressure difference between the interior of the chamber 37 and the channel 42, at the exterior of the chamber 37. Given the pressure differential, the second air flow FE located inside the chamber 37 is therefore sucked in towards the narrowing 51 then is propelled inside the channel 42 where it is mixed with the first air flow FR, and flows to the air outlet 36. In other words, the narrowing 51 causes a reduction in passage section accelerating and increasing the flow rate of the second air flow treated FE air from heating, ventilation and / or air conditioning system which then generates a vacuum capable of sucking in the first air flow from the passenger compartment via the first air inlet 35.

As illustrated in Figure 3, the chamber 37 has an oblong section. In other words, the chamber 37 has a section of a shape which is longer than it is wide and whose corners are rounded. In other words, the transverse planar section of the chamber 37 is oblong. This shape, in combination with the exit angle of the second air flow FE at the level of the narrowing 51, makes it possible to induce a Coandâ effect, where the partition 38 of the chamber 37 corresponds to a Coandâ surface where the flows d 'air FE and FR are mutually deflected along this partition 38, in particular at the level of the flat surface and the convex surface (rounded edge), thus improving their mixing.

As illustrated in FIG. 2, the housing 30 comprises a duct 52 connected to the second air inlet 39 for the direct admission of the second air flow FE inside the chamber 37. The duct 52 is for example connected to the heating, ventilation and / or air conditioning system of the vehicle, thus the second flow of air FE coming from the heating, ventilation, and / or air conditioning system leads directly into the chamber 37.

According to one embodiment, the conduit 52 comprises bellows 54 as illustrated in FIG. 5. In fact, the housing 30 is designed to be mounted in a door 4. However, the door will be brought to be opened and closed, so that by arranging a bellows 54, that is to say an element formed of a cavity of flexible material capable of expanding in order to fill with air by suction and to empty by compression producing a directed air jet , we ensure good sealing and avoid losses of air flow.

In order to adapt to the shape of the door, the housing 30 may have a straight, or rectilinear shape, or a curved, or curved shape.

FIG. 4 shows a passenger compartment 5 of a motor vehicle in which a housing 30 is integrated into a door 4 whose structure and walls form a hollow body 10. The hollow body 1 comprises at least three mouths 6, 7, 8 opening into the cabin 5.

FIG. 4 also shows that the door 2 comprises a door body 22 here associated with a first trim panel 21 and a second trim panel 23 on the other side. The trim panels 21, 23 are arranged on either side of the housing 30. The trim panels 21, 23 and the door body 22 define between them a hollow body 10, or a channel, through which the flow of air can flow and in which the housing 30 is arranged. The door body 22 delimits the motor vehicle with respect to the exterior of the motor vehicle and has a face exposed to the outside of the motor vehicle as well as a turned face towards the hollow body 10. The door comprises a support means 61 for carrying the housing 30. The support means 61 may correspond to hooks, notches being arranged on the housing 31, a grid on which the housing 30 is placed. The housing 30 can also be held only by the two trim panels 21, 23.

The trim panels 21, 23 and the door body 22, are at least partially connected by walls extending transversely with respect to these faces. More particularly, a first transverse wall is defined supporting the hinge allowing the mobility of the door 2 relative to the vehicle, and a second transverse wall comprising a locking system for the door 2. It is then understood that the first transverse wall is located at the front of the vehicle compared to the second transverse wall which is located further back of the vehicle, according to the previously defined benchmark.

FIG. 4 make it possible to distinguish among the vents 6, 7, 8, of the air distribution device using a housing 30, a first outlet mouth 6 arranged at the foot of the window 9, a second outlet mouth 7 arranged at the armrests 63 and a third air inlet mouth 8 arranged at the foot area, or at the floor of the passenger compartment 5.

FIG. 5 shows that several outlet openings 6, 7 opening into the hollow body 10 can be provided. As regards the arrangement of these outlet openings 6, 7 relative to the door 2, a first outlet mouth 6 is arranged at the foot of a window 9 and a second outlet mouth 7 is arranged at the level of an armrest, or armrest 63 in order to deliver a flow of air 70 emitted towards the bust of a vehicle user.

In general, each outlet mouth 6,7 is located in an upper part of the door 2 according to the previously defined reference system. In other words, each outlet 7 is located closer to the roof than to the floor of the motor vehicle. The outlet ports 6, 7 are not coaxial.

According to the invention, the housing 30 comprises at least one movable flap 64, 74, 78. A movable flap corresponds to a wall making it possible to orient an air flow or in other words, the movable flap corresponds to an element pivoting in a direction of rotation, or to a sliding element in a rail, more or less obstructing the flow of an air flow. Depending on its degree of inclination, or its positioning in the rail, the flap can direct the flow of an air flow in various directions. It is thus possible to guarantee management of the air flow by directing the flow of the air flow towards different regions of the passenger compartment.

There are several types of shutters, the invention not being limited to a single type of shutter. A butterfly flap corresponds to a flap with a panel or wall pivoting about an axis of rotation, the axis of rotation being in the center of the panel. According to an alternative, the butterfly flap can also correspond to a flap with two blades and an axis of rotation, the axis of rotation being located between the two blades. The term pale or panel, the two terms being equivalent, corresponds to a generally flat and rectangular wall or plate made of plastic. The surface of the blade or panel allows to deflect the air flow or even prevent its flow. A flag shutter corresponds to a shutter with a pale or a panel pivoting around an axis of rotation located at one end of the panel. A drum flap corresponds to a flap comprising two side walls inscribed in two separate planes which are parallel to each other with a curved wall serving to prevent the passage of the air flow and connecting the two side walls. The curved wall and a rotation shaft form a continuity of material between the two side walls. Each axis of rotation includes a rotation shaft used to induce the movement of rotation via an actuator. A sliding shutter (better known under the English name "sliding door") corresponds to a shutter comprising a door, or panel (the two terms being equivalent), sliding within a rail and on which is arranged at least one rack. In order to set the door in motion, at least one gear complementary to the rack is rotated about an axis by an actuator. The rotation of the gear causes the sliding door to move in translation along the rail.

According to the invention, the housing 30 comprises a first flap 74 arranged at the first air inlet 35. The first flap 74 can be of the butterfly, flag, sliding door or drum type. As shown in Figure 6c, the first part here is of the sliding type. The first flap 74 comprises a wall or a door on which a rack is arranged. A gear, namely an element having a plurality of teeth, is rotated by an actuator or motor. This pivoting makes it possible to move the door 75 in translation by means of rack and pinion cooperation. In order to limit the movement of the door in a restricted or predetermined space, the door 75 comprises pins sliding along a rail 76, here in the shape of a U. Thus according to the dimensioning of the rail 76, or failing this, the actuator, the first flap 74 is able to at least partially close off the first air inlet 35. In other words, the first movable flap 74 is able to pass from an opening configuration where the door 75 opposes at least when the air flow flows through the first air inlet 35 in a closed configuration where the door 75 completely closes the first air inlet 35. Obviously, the first flap 74 is capable of adopting any configuration intermediate.

Still according to an embodiment of the invention, the housing 30 can further comprise a second flap 78 arranged at the second air inlet 39. The second flap 78 can be of the butterfly, flag or drum type. As illustrated in FIG. 2, the second flap 78 here is of the butterfly type. The second flap 78 comprises a wall 80, or a door, and a rotation shaft 82, in other words a journal, arranged in the center of the wall 80. The rotation shaft 82 is moved by an actuator which causes the rotation of the wall 80. In other words, the second flap 78 is capable of passing from an opening configuration where the wall 80 is at least opposed to the flow of the air flow through the second inlet. air 39 in a closed configuration where the wall 80 prevents any flow of the air flow through the second air inlet 39. Obviously, the flap 78 is capable of adopting any intermediate configuration.

The invention is not limited to a particular embodiment. In other words, it is possible to design an embodiment where the housing comprises the first movable flap 74 and / or the second movable flap 78.

The first flap 74 is moved by an actuator which is itself controlled by the vehicle electronic control unit (ECU). The second flap 78 is also moved by an actuator which is itself controlled by the vehicle electronic control unit (ECU). Usually, the occupant of the vehicle by pressing the control buttons on the dashboard (temperature and air flow) indicates to the ECU the desired ventilation conditions and the ECU sends a response to the actuator to each flap 74,78 so as to adapt the air flow according to the instructions.

According to one embodiment, it is possible to arrange a humidity sensor near the window 9. If the sensor detects a too high humidity level (for example fogging on the window), it then sends a signal to each actuator to adopt the opening configuration. The ECU can also send a command to the vehicle's heating, ventilation and / or air conditioning system so that it provides a second flow of hot and dry FE air which will better demist the window 9.

According to one embodiment, the housing 30 can include a third flap arranged at the air outlet 36. The third flap 64 can be of the butterfly, flag, sliding door, or drum type. As illustrated in FIG. 3, the third flap 64 here is of the flag type. The third flap 64 comprises a wall and a rotation shaft 66 arranged at one end of the wall 65, around which the wall 65 pivots. Depending on the orientation of the third flap 64, and more precisely the orientation of the wall 65, the FS air flow leaving the housing 30 can be selectively oriented in the direction of one or two outlets 6,7 according to the instructions of the vehicle occupants.

According to another embodiment, the third flap 64 may include a sliding door 64c, as illustrated in FIG. 6b, sliding along a U-shaped rail 67 so that the sliding door can orient the flow of air to an outlet 6,7, or both, or completely seal the air outlet 36.

According to one embodiment, a fourth flap 72 can be arranged within the hollow body 10 in the door 4 between the two outlet openings 6,7 as illustrated in FIG. 7. In other words, the hollow body 10 comprises at least two openings 6,7 outlet, the fourth movable flap 72 being arranged between said outlet vents 6,7 so as to be able to selectively direct the air flow towards one of the outlet vents 6,7. The fourth flap 72 can also be of the flag type (as illustrated in FIG. 7), butterfly, drum or sliding. The fourth flap 72 is capable of passing from a configuration where it directs the air flow FS leaving the housing 30 towards the outlet outlet 7 to a configuration where it directs the air flow FS towards the outlet outlet 6, as well as any intermediate position. It is also possible to conceive an embodiment where the fourth flap 72 prevents the air flow from flowing through any of the outlet openings 6,7.

Obviously it is possible to arrange a third flap 64 within the housing 30 and a fourth flap 72 within the hollow body.

According to the invention, and as illustrated by FIGS. 4 and 5, a third air inlet mouth 8 is provided. This additional air inlet mouth 8 corresponds to a porous wall also opening into the hollow body 10. More specifically, the additional air inlet mouth 8 is disposed on the trim panel 23, so that a air flow FR from the passenger compartment 5 is drawn into the hollow body 10, then enters the housing 30 at the first air inlet 35 of the housing 30 and is then mixed with the second air flow FE treated at the level of the channel 42. The flow of mixed air flows through the air outlet 36 of the housing 30 and is directed through the hollow body towards the outlet openings 6,7.

According to the invention, a fifth flap 86 can be arranged at the level of the additional air inlet mouth 8. In other words, the fifth flap 86 is capable of passing from an opening configuration of the air inlet mouth 8 where the air flow passes through the air inlet mouth 8 and thus penetrates into the housing. 30, a first flap 74 which can be arranged at the level of the first air inlet 35 of the housing 30, in a closed configuration where the fifth flap 86 closes the additional air inlet mouth 8 the air flow does not can no longer flow through the additional air inlet mouth 8. For this, the door 4 includes within its structure a notch 88 capable of accommodating the entire fifth flap 86. In other words, the fifth flap 86 in the opening configuration and in the retracted position within the notch 88.

Still according to the invention, the second flap 78 can be arranged within the duct 52 as illustrated in FIG. 2. The duct 52 can include stops 84 (FIG. 8) on which the flap 78 can come to bear and thus seal off the duct 52 and preventing the second air flow FE from flowing through the second air inlet 39.

The principle of the suction of a flow by the flow of another flow is called flow induction, the first flow of FR air from the passenger compartment then forming a flow induced by a depression of the second flow FE air from the heating, ventilation and / or air conditioning system in the housing 30. The second FE air flow and the first FR air flow mixed together form the FS air flow which is emitted by the or the outlet openings 6,7.

In order to ensure better mixing of the mixture between the second air flow coming from the HVAC and the first air flow FR coming from the passenger compartment, the hollow body 10 can be equipped with a mixing channel arranged for collect these two flows downstream of the air inlet mouth 8 and guide them to the outlet mouths 6, 7, with, for example, one or more flow disrupters arranged in this mixing channel in order to optimize the mixing of the second air flow FE with the first air flow FR within the hollow body 10.

The air inlet mouth 8 is configured in terms of size, arrangement, or physical characteristics such that the second flow of air FE entering the channel 42 of the housing cannot exit through the mouth of air inlet 8. The speed of the second air flow FE entering the channel 42 can also help prevent it from leaving through the air inlet mouth 8.

Without departing from the scope of the invention, several air intake vents 8 can be provided. It should be noted that the air inlet opening (s) 8 are located in a lower part of the door 2. In other words, each air inlet opening 8 is located closer to the floor than of the motor vehicle roof. More specifically, the air intake opening (s) 8 are located closer to the underside of the door 2, or even under the armrests 63, than is the housing 30. Thus, according to the previously defined standard, or the air inlet vents 8 are arranged below the housing 30 along the vertical axis V.

The air inlet mouth 8 here corresponds to a porous wall capable of allowing a flow of air from the passenger compartment to penetrate into the hollow body 10 present in the door 4. The air flow FR enters the within the housing 30, possibly by crossing the support 61, through the first air inlet 35.

Obviously, it is possible to design an embodiment where the housing 30 and / or the door 4 comprise the first shutter 74 and / or the second shutter 78 and / or the third movable shutter 64 and / or the movable fourth shutter 72 and / or the fifth movable flap 86.

The invention as it has just been described cannot be limited to the means and configurations described for a particular embodiment, and also applies to all combinations of these means or configurations, as well as to equivalents and any combination of such means or configurations with equivalents. Indeed, if the invention has been described and illustrated in different embodiments in the context of a vehicle door, it goes without saying that other elements forming hollow bodies in the passenger compartment can be envisaged without this affecting the invention.

Claims (10)

1. Housing (30) intended to be mounted on a door (4) of a motor vehicle comprising - a first air inlet (35) for admitting a first air flow (FR) into the housing (30), - an air outlet (36), - a chamber (37), delimited by at least one partition (38), arranged inside the housing (30), - a second air inlet (39) for direct admission of a second air flow (FE) inside the chamber (37), the first air inlet (35), the chamber (37 ) and the air outlet (36) being fluidly connected, characterized in that the housing (30) comprises at least one movable flap (64, 74, 78). 2. Housing (30) according to claim 1, wherein a first movable flap (74) is arranged at the first air inlet (35). 3. Housing (30) according to claim 2, wherein the first movable flap (74) comprises a door (75) sliding within a rail (76). 4. Housing (30) according to claim 1, wherein a second movable flap (78) is arranged at the second air inlet (39). 5. Housing (30) according to claim 2 and 4, wherein a first movable flap (74) is arranged at the first air inlet (35) and a second movable flap (78) is arranged at the second air inlet (39). 6. Housing (30) according to any one of claims 2 to 5 wherein a third movable flap (64) is arranged at the air outlet (36). 7. Set of a vehicle door (4) comprising a support (61) for a housing and a housing (30) according to one of claims 1 to 6. 8. The assembly of claim 7, wherein the door (4) comprises at least one trim panel (21,23) and a door body (22) together forming the door (4), said trim panel (21, 23) and the door body (22) defining between them a hollow body (10) through which the air flow can flow, a fourth movable flap (72) being arranged within the hollow body (10). 9. The assembly of claim 8, wherein the hollow body (10) comprises at least two outlet openings (6,7), the fourth movable flap (72) being arranged between said outlet openings (6,7) so to be able to selectively direct the air flow towards at least one of said outlet openings (6,7). 10. Assembly according to one of claims 8 or 9, in which an additional air inlet mouth (8) corresponding to a porous wall opening into the hollow body (10), a fifth movable flap (86) being arranged at this air inlet mouth (8).