Heating, ventilation and / or air-conditioning device, corresponding vehicle, and mounting method

Abstract

The invention relates to a heating, ventilation and / or air conditioning device (1) for a vehicle, comprising an engine compartment (M) and a passenger compartment (H) which are separated by an apron (3) comprising an opening (31), said device (1) comprising a housing (5) that defines a first portion (5A) having at least one air inlet (7) in fluid communication with a chamber (21), and a second portion (5B) having at least one air distribution duct (23), downstream of the chamber (21), ending with an air outlet (9a, 9b). The first and second portions (5A, 5B) are arranged on either side of the apron (3) in the mounted state of the housing (5) in the vehicle. The housing (5) is integrally mounted in the vehicle and only from a first side of the apron (3), the second portion (5B) of the housing passing through the opening (31) so as to protrude from a second side of the apron (3). The invention also relates to a vehicle comprising a device (1) of this kind, and to a method for mounting the device (1) in the vehicle.

Description

HEATING, VENTILATION AND / OR AIR CONDITIONING DEVICE, CORRESPONDING VEHICLE AND MOUNTING METHOD

[0001] The invention relates to the field of heating, ventilation and / or air conditioning devices for vehicles, particularly motor vehicles. The invention also relates to a vehicle, particularly motor vehicles, comprising such a device and a method for mounting such a device in the vehicle.

[0002] A motor vehicle is commonly equipped with a heating, ventilation and / or air conditioning device to regulate aerothermal parameters of an air flow intended to be distributed to the interior of a passenger compartment of the vehicle. Such a device, also known by the English acronym HVAC (for Heating, Ventilation and Air-Conditioning), generally comprises a housing delimited by partitions in which openings are provided, including at least one air inlet and at least one air outlet.

[0003] In a known manner, the housing houses a blower for circulating the air flow from the air inlet to the air outlet. The housing also houses one or more heat treatment means, such as heat exchangers, for heating and / or cooling the air flow prior to its distribution inside the passenger compartment. For example, the heat treatment means may comprise an evaporator which is intended to cool and dehumidify the air flow passing through it, as well as a radiator, possibly associated with an additional radiator, which is intended to heat the air flow passing through it.

[0004] It is known, in these devices, that the air flow entering the interior of the housing and possibly heat-treated is admitted into a chamber, called a mixing chamber, before being distributed to one or more specific zones or regions of the passenger compartment of the vehicle, for example the front and rear zones, and / or left and right in the passenger compartment. For this purpose, the chamber is fluidically connected to one or more air distribution ducts opening into a respective region of the passenger compartment. Such distribution ducts are generally provided with at least one distribution member, such as a distribution flap, in order to define the proportion of the air flow intended to be distributed in the corresponding region of the passenger compartment.

[0005] Although such a heating, ventilation and / or air conditioning device allows for air management for several zones or regions of the vehicle's passenger compartment, there are, however, numerous constraints in terms of volume and weight for these devices.

[0006] Indeed, heating, ventilation and / or air conditioning devices are generally located under the dashboard of the motor vehicle, this involves raising the dashboards, thus limiting the driver's visibility. More precisely, the box is installed in the passenger compartment, between a dashboard of the vehicle and a wall, commonly called an apron or firewall, separating the passenger compartment from the engine compartment of the vehicle.

[0007] However, for the comfort of the vehicle occupants, it is desirable that the interior space of the passenger compartment be as large as possible. In other words, to maintain an acceptable level of comfort, it is desirable to reduce the size of certain components, for example the dashboard. Such a dimensional reduction then complicates the positioning of a heating, ventilation and / or air conditioning device as known from the prior art.

[0008] According to another solution, the housing is mounted in several parts and in several stages within the vehicle and these different parts of the housing are secured to each other once mounted in the vehicle, for example by means of the bulkhead. However, such a solution complicates the process of mounting the housing and the installation of the heating, ventilation and / or air conditioning device within the vehicle.

[0009] Furthermore, a constant problem in the automotive sector is soundproofing or acoustic insulation at the level of the dashboard in order to reduce the transmission of noise from the engine compartment to the passenger compartment.

[0010] The present invention aims to overcome one or more drawbacks of the prior art by optimizing the size of a heating, ventilation and / or air conditioning device and its installation in a vehicle, while limiting acoustic leaks.

[0011] To this end, the invention relates to a heating, ventilation and / or air conditioning device, for a vehicle, in particular a motor vehicle, the vehicle comprising an engine compartment and a passenger compartment, separated by an apron comprising an opening.

[0012] Said device comprises a housing defining: a first part having at least one air inlet configured for the admission of an air flow into the housing, and in fluid communication with a chamber intended to be crossed by the air flow, and a second part having at least one air distribution duct, downstream of the chamber according to the flow of the air flow, the distribution duct ending in an air outlet configured to open into at least one zone of the passenger compartment of the vehicle.

[0013] According to the invention, the first part and the second part are configured to be arranged on either side of the apron in the mounted state of the housing in the vehicle.

[0014] The housing is configured to be mounted integrally in the vehicle and only from a first side of the bulkhead. The second portion of the housing is configured to pass through the opening in the bulkhead so as to protrude from a second side of the bulkhead opposite the first side.

[0015] In addition, the housing is configured to be mounted integrally in the vehicle and only from a first side of the bulkhead. The second portion of the housing is configured to pass through the opening in the bulkhead so as to protrude from a second side of the bulkhead opposite the first side.

[0016] Such a device can therefore be inserted into the vehicle in one piece, as a single block, and not in several parts to be assembled later. This makes it possible to limit the stages of assembly of the housing and mounting within the vehicle.

[0017] Furthermore, the first part, which is more bulky, is intended to be located on the first side of the apron, such as the engine compartment, and only the second part allowing the distribution of the air flow in the passenger compartment is intended to be located on the second side of the apron, such as the passenger compartment.

[0018] Said device may further comprise one or more of the following characteristics described below, taken separately or in combination.

[0019] Said device may comprise at least one distribution flap arranged in the distribution duct.

[0020] Said device may comprise at least one drive assembly for said flap configured to drive said flap in movement so as to adjust the distribution of the air flow through the air outlet.

[0021] The distribution flap drive assembly comprises in particular at least one actuator arranged in the first part of the housing.

[0022] The actuator thus intended to be located on the first side, such as the engine compartment side, does not have to pass through the bulkhead. This makes it possible to reduce the opening in the bulkhead and limit acoustic leaks.

[0023] According to one embodiment, the distribution flap drive assembly comprises at least one connecting member mechanically connected to said flap and to the actuator.

[0024] The connecting member may be arranged at least partially in the second part of the housing.

[0025] The housing is for example configured to be secured to a single face of the apron. The first part of the housing may comprise at least one member for fixing to the apron.

[0026] Said device may comprise at least one heat exchanger arranged in the first part of the housing. Said device may comprise several heat exchangers arranged in the first part of the housing.

[0027] The first part of the housing may have an outside air inlet and / or a recirculation air inlet for an air flow from the passenger compartment of the vehicle.

[0028] The invention also relates to a vehicle, in particular a motor vehicle, comprising an engine compartment and a passenger compartment, separated by an apron comprising at least one opening. The vehicle comprises at least one heating, ventilation and / or air conditioning device, as defined above.

[0029] The first part and the second part of the housing are arranged on either side of the apron. The housing is configured to be mounted integrally in the vehicle and only from a first side of the apron, the second part of the housing being configured to pass through the opening in the apron so as to project from a second side of the apron opposite the first side.

[0030] The vehicle may further include one or more of the following features described below, taken separately or in combination.

[0031] The engine compartment of the vehicle is, for example, on the first side of the bulkhead.

[0032] The passenger compartment is, for example, on the second side of the apron.

[0033] The apron may comprise a first opening crossed by the second part of the housing and a second opening arranged opposite a recycling air inlet of the first part of the housing.

[0034] The invention also relates to a method of mounting a heating, ventilation and / or air conditioning device as defined previously in a vehicle, in particular a motor vehicle.

[0035] Said method comprises the following steps: inserting the housing in one piece into the vehicle, only through a first side of the bulkhead, so that the second part of the housing passes through the opening in the bulkhead so as to protrude from a second side of the bulkhead opposite the first side and so that the first part of the housing is arranged on the first side of the bulkhead, and fixing the first part of the housing to the bulkhead.

[0036] The method may include a preliminary step of assembling the housing of said device, so as to form a unitary assembly.

[0037] Other advantages and characteristics of the invention will appear more clearly on reading the following description given by way of illustrative and non-limiting example, and the appended drawings among which:

[0038] [Fig. 1] is a perspective view of an exemplary embodiment of a heating, ventilation and / or air conditioning device according to the invention.

[0039] [Fig. 2] is a cross-sectional view of the heating, ventilation and / or air conditioning device of Figure 1.

[0040] [Fig. 3] is an enlarged view of a portion of the device of Figure 1.

[0041] In these figures, identical elements have the same reference numbers.

[0042] The following embodiments are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the characteristics apply only to a single embodiment. Single features of different embodiments may also be combined or interchanged to provide other embodiments.

[0043] In the description, certain elements may be indexed, for example first element or second element. In this case, it is a simple indexing to differentiate and name close but not identical elements. This indexing does not imply a priority of one element over another and such names can easily be interchanged without departing from the scope of the present invention. This indexing also does not imply an order in time.

[0044] Additionally, in the description, the terms upstream and downstream are defined with reference to the flow of an air stream circulating within a heating, ventilation and / or air conditioning device.

[0045] Heating, ventilation and / or air conditioning device

[0046] With reference to figures 1 and 2, the invention relates to a heating, ventilation and / or air conditioning device 1, hereinafter referred to as device 1.

[0047] The device 1 is intended to be installed in a vehicle, in particular a motor vehicle, not shown in the figures. The vehicle comprises an engine compartment M and a passenger compartment H. The engine compartment M and a passenger compartment H are separated by a panel commonly called a bulkhead 3. The engine compartment M is for example on a first side of the bulkhead 3 and the passenger compartment H on a second side of the bulkhead 3, opposite the first side. The bulkhead 3 comprises an opening 31. This opening 31 is intended to be crossed by a part of the device 1, in particular for distributing air to the passenger compartment H, as described below. The invention also relates to such a vehicle comprising the device 1.

[0048] An XYZ trihedron is shown diagrammatically in Figure 1. The X axis is a longitudinal axis of the device 1. This X axis can correspond to the front / rear longitudinal axis of the vehicle, i.e., according to the length of the vehicle, when the device 1 is mounted within the vehicle. The Y axis is a transverse axis of the device 1. This Y axis can correspond to the right / left transverse axis of the vehicle, i.e., according to the width of the vehicle, when the device 1 is mounted within the vehicle. The Z axis can coincide with the top / bottom vertical axis of the vehicle, i.e., according to the height of the vehicle, when the Device 1 is mounted within the vehicle. The X, Y, Z axes are perpendicular to each other.

[0049] The device 1 comprises a housing 5. The housing 5 may be a single piece, or comprise several modules assembled together. Once the modules are assembled, the housing 5 forms a single block.

[0050] When installed within the vehicle, the housing 5 is mounted in one piece in the vehicle. In particular, the housing 5 is intended to be mounted in the vehicle only on the first side of the bulkhead 3, in particular from the engine compartment M.

[0051] The walls of the housing 5 delimit an internal volume. This internal volume comprises at least one flow channel for an air flow intended to be distributed in the passenger compartment H. The flow channel makes it possible to convey an air flow from at least one air inlet 7, 7' allowing the admission of the air flow into the housing 5 to at least one air outlet 9a, 9b opening into the passenger compartment H when the device 1 is mounted in the vehicle.

[0052] The air inlet 7, 7' is formed by an opening in the housing 5. It may be an exterior air inlet 7. Alternatively or additionally, the housing 5 may comprise at least one opening defining an air inlet 7' called a recycling air inlet, for an air flow coming from the passenger compartment. A flap, called an air intake flap, may be arranged between the two openings to at least partially close each one.

[0053] In the particular example illustrated, the exterior air inlet 7 is provided in a low or lower region of the housing 5. Alternatively, the exterior air inlet 7 may be arranged at a high or upper region of the housing 5. The recycling air inlet 7' is for example arranged at the high or upper region of the housing 5. The lower region and the upper region are defined relative to the Z axis of the device 1, corresponding for example to the vertical axis of the vehicle in the mounted state of the device 1 in the vehicle.

[0054] In order to allow the recycling air to access the recycling air inlet 7', the apron 3 may further comprise a second opening arranged opposite this recycling air inlet 7. In this case, the opening intended to be crossed by a part of the device 1 is called the first opening 31.

[0055] At least one filter may be arranged in the housing 5, downstream of an air inlet, so as to be traversed by the air flow. In the illustrated example, at least one filter 8 is arranged downstream of the external air inlet 7. An access hatch 10 may be provided on the housing 5 for each filter 8, in order to be able to access and replace the filter(s) 8.

[0056] The air flow is introduced into the housing 5 and directed by means of a blower 11. The air intake flap is for example arranged upstream of the blower 11 according to the direction of flow of the air flow. The blower 11 comprises in particular a motor and a wheel, such as a bladed or impeller. The blower 11 is mounted to rotate about an axis. This axis of rotation of the blower can be vertical or alternatively horizontal, in the mounted state of the housing 5 in the vehicle.

[0057] One or more means for heat treatment of the air flow, such as heat exchangers 13, 15, may be housed in the housing 5. In the illustrated example, two heat exchangers 13, 15 are shown. This number is not limiting. A first heat exchanger 13 is, for example, an evaporator, intended to cool and dehumidify the air flow circulating within the housing 5. A second heat exchanger 15 is, for example, a radiator, intended to heat at least a portion of the air flow circulating within the housing 5. The second heat exchanger 15 is arranged downstream of the first heat exchanger 13, relative to the flow of the air flow. The second heat exchanger 15 may optionally be coupled to another heat exchanger, such as a radiator, for example an electric one.

[0058] The air flow cooled by the first heat exchanger 13 can be guided within the flow channel to the second heat exchanger 15. To ensure that the cold air flow from the first heat exchanger 13 is not thermally contaminated by the second heat exchanger 15, the device 1 can comprise a bypass channel 17 of the second heat exchanger 15. Thus, the cold air flow, having passed through the first heat exchanger 13, circulates either through the second heat exchanger 15 to be reheated, or bypasses the second heat exchanger 15 via the bypass channel 17 in order to maintain its low temperature.

[0059] The device 1 may comprise one or more mixing flaps 19 making it possible to regulate the proportion of cold air flow passing through the second heat exchanger 15 and the proportion of cold air flow passing through the bypass channel 17.

[0060] The mixing flaps 19 may be of different types. For example, they may be flag-type flaps, corresponding to a door with a rotation shaft arranged at one end of the door, or sliding-type flaps, also known as the English name "sliding door", corresponding to a sliding door on which at least one rack is arranged, or butterfly-type flaps, corresponding to a flap with a rotation shaft and one or two blades arranged on either side of the rotation shaft, as in the example illustrated. The mixing flaps 19 as illustrated are arranged between the first heat exchanger 13 and the second heat exchanger 15.

[0061] The blower 11 makes it possible to convey the air flow from at least one air inlet 7, 7' to at least one air outlet 9a, 9b, in particular after thermal conditioning of this air flow by the heat exchanger(s) 13, 15.

[0062] In addition, the housing 5 defines a first part 5A and a second part 5B. The first part 5A and the second part 5B of the housing 5 are arranged on either side of the apron 3 in the mounted state of the housing 5 in the vehicle.

[0063] These two parts 5A, 5B form a unitary block mounted in a single piece in the vehicle. It is not a case cut in two, and each part of which is inserted independently within the vehicle, in several stages. The case 5 according to the embodiment described, is mounted as a whole, in a single block, within the vehicle, via the first side of the bulkhead 3, such as the engine compartment.

[0064] Furthermore, when installing the housing 5 in the vehicle, from the first side of the bulkhead 3, the second part 5B of the housing 5 passes through the opening 31 (or first opening 31) in the bulkhead 3. In this way, the second part 5B projects from the second side of the bulkhead 3, for example on the passenger compartment side H. The first part 5A, for its part, is arranged on the first side of the bulkhead 3, for example on the engine compartment side M.

[0065] When installed in the vehicle, the housing 5 can be secured to a single face of the bulkhead 3. This is in particular a face on the first side of the bulkhead 3, for example the engine compartment M. In other words, in the mounted state of the device 1 in the vehicle, the housing 5 can only be fixed to the bulkhead 3 on the first side thereof, while extending on either side of the bulkhead 3.

[0066] The housing 5 and more precisely the first part 5A of the housing 5 comprises for this purpose at least one member (not shown) for fixing to the apron 3. Such a member fixing is in particular intended to cooperate with a complementary element or member arranged on the apron 3. Any type of member or element allowing the fixing of the housing 5 to the apron 3 can be envisaged.

[0067] Furthermore, the first part 5 A of the housing 5 has the air inlet or air inlets 7 outside and 7' for recycling.

[0068] The first part 5A advantageously comprises the filter(s) 8 possibly associated with each air inlet 7, 7'. In addition, it comprises the access hatch 10 for each filter 8.

[0069] The first part 5A of the housing 5 may also include the blower 11. It may in particular include a volute corresponding to a part of the spiral housing, making it possible to convey the flow of air entering the housing to the first heat exchanger 13.

[0070] The first part 5A of the housing 5 can house the heat exchanger(s) 13, 15, and the possible mixing flap(s) 19. Thus, all the heat exchangers 13, 15 are arranged on the same side of the bulkhead 3, in particular on the engine compartment side M.

[0071] The first part 5A also defines a chamber 21 intended to be crossed by the air flow, which is therefore in fluid communication with the air inlet, such as the exterior air inlet 7 and / or the recycling air inlet 7'. Such a chamber 21 is located downstream of the heat exchanger(s) 13, 15. It is for example a mixing chamber 21. In operation of the device 1, the hot and / or cold air flows leaving the heat exchangers 13, 15 can be guided towards the chamber 21 to be mixed there before distribution in the passenger compartment at a set temperature.

[0072] The first part 5A thus forms an air inlet and thermal conditioning part.

[0073] The second part 5B of the housing 5 comprises at least one air distribution duct 23. The second part 5B thus forms a distribution part.

[0074] In the illustrated example, four distribution conduits 23 are shown. Of course, this number is not limiting, more or fewer distribution conduits 23 can be provided.

[0075] According to a particular arrangement example, shown in Figures 1 and 2, at least one distribution duct 23 can be arranged in the upper or top region of the housing 5. The distribution duct(s) 23 are in this example arranged at the region of the housing 5 opposite the outside air inlet 7.

[0076] Furthermore, the distribution duct(s) 23 are arranged downstream of the chamber 21 according to the flow of the air stream.

[0077] The distribution duct(s) 23 each terminate in a respective air outlet 9a, 9b. The air outlets 9a, 9b open into at least one area of ​​the passenger compartment of the vehicle when the device 1 is mounted in the vehicle. In the example illustrated, at least one air outlet 9a called ventilation and at least one other air outlet 9b called foot are provided. The ventilation air outlet(s) 9a are intended to open into the passenger compartment, for example substantially at the level of the busts of the vehicle passengers and / or their heads. The foot air outlet(s) 9b are intended to open into the passenger compartment at the level of the feet of the vehicle passengers. These may be nozzles, such as a defroster nozzle to demist the windshield, a side / center ventilation nozzle to cool / warm the vehicle's passengers, a foot nozzle to cool / warm the vehicle's passengers' feet.In this case, the distribution conduit(s) 23 extend from the chamber 21 to a respective nozzle opening into the passenger compartment.

[0078] A distribution or distribution flap 25 may be arranged in the distribution duct(s) 23. More specifically, a distribution or distribution flap 25 may be arranged at the inlet of the or each distribution duct 23. Each distribution flap 25 is configured to move from a position where it completely closes the inlet of the corresponding distribution duct 23 to a position where it allows the air flow to circulate completely within the distribution duct 23. Each distribution flap 25 is capable of adopting any intermediate position.

[0079] The distribution flaps 25 may be of different types. For example, one or more distribution flaps 25 may be of the flag type, or of the sliding type, or of the butterfly type, as in the example illustrated.

[0080] To control the distribution flaps 25, at least one drive or kinematic assembly is provided. A drive assembly can be associated with each distribution flap 25 to drive it in movement so as to adjust the distribution of the air flow through the corresponding air outlet 9a, 9b. The drive assembly, the kinematics, is mainly on the first side of the apron 3, in particular on the engine compartment side M.

[0081] In particular, each drive assembly comprises at least one actuator 27.

[0082] The actuators 27 are arranged in the first part 5A of the housing 5. In the mounted state of the device 1 in the vehicle, the actuators 27 are therefore on the first side of the bulkhead 3, in particular on the engine compartment M side. This makes it possible to avoid the actuators 27 having to pass through the opening (or first opening) 31 of the bulkhead 3, when inserting the housing 5 into the vehicle. The size of the opening 31 in the bulkhead 3 can thus be reduced as much as possible, without having to reduce the size of the distribution ducts 23 and the air outlets 9a, 9b. This is advantageous in terms of size and aeraulic performance, and also contributes to limiting the acoustic transmission between the engine compartment M and the passenger compartment H.

[0083] With reference to Figure 3, the drive assembly may further comprise at least one connecting member 29 mechanically connected to the distribution flap 25 and to the corresponding actuator 27. This may for example be a plate, connecting rods, rods, to control the distribution flap 25. The connecting member(s) 29 are, in the example illustrated in Figure 3, arranged partly in the second part 5B of the housing 5. Another non-visible part of the connecting members 29 may extend into the first part 5A of the housing 5.

[0084] Method of mounting the device in a vehicle

[0085] The device 1 can be mounted in a vehicle according to a mounting method comprising the following steps, with reference to figures 1 to 3.

[0086] In at least one preliminary step, the housing 5 of the device 1 may be assembled so as to form a unitary assembly, in particular when the housing 5 comprises several modules. The various elements of the device 1, such as the filter(s) 8, the heat exchanger(s) 13, 15, the flap(s) 19, 25 may be mounted inside the housing 5.

[0087] The method comprises a step of inserting the housing 5 in one piece into the vehicle. This insertion is done only via the first side of the apron 3, in particular on the engine compartment side M. During this insertion, the second part 5B of the housing 5 passes through the opening 31 (or first opening) in the bulkhead 3, and projects from the second side of the bulkhead 3, in particular from the passenger compartment side H. The first part 5A of the housing 5 is arranged on the first side of the bulkhead 3, in particular from the engine compartment side M.

[0088] The method comprises a following step of fixing the housing 5, and more precisely the first part 5A of the housing 5, to the apron 3. This fixing can be done by complementarity of fixing members carried on the one hand by the housing 5, in particular on its first part 5A, and on the other hand by the apron 3.

[0089] Thus, the first part 5A of the housing 5, advantageously comprising the exterior air inlet 7 and / or 7' for recycling, the heat exchangers 13, 15 and any mixing flaps 19, as well as the actuators 27 of the distribution flaps 25, is arranged on one side, or one face, of the apron 3, in particular on the engine compartment side M. Conversely, the second part 5B of the housing 5, comprising the distribution ducts 23 and the associated distribution flaps 25, as well as a part of the kinematics, such as one or more connecting members 29, is arranged on the other side or face of the apron 3.

[0090] All elements of device 1 that can be relocated from the passenger compartment H are placed in the engine compartment M.

Claims

Demands

1. A heating, ventilation and / or air conditioning device (1) for a vehicle, in particular a motor vehicle, the vehicle comprising an engine compartment (M) and a passenger compartment (H), separated by a bulkhead (3) including an opening (31), said device (1) comprising a housing (5) defining: a first part (5A) having at least one air inlet (7, 7') configured for admitting an airflow into the housing (5), and in fluidic communication with a chamber (21) intended to be traversed by the airflow, and a second part (5B) having at least one air distribution duct (23), downstream of the chamber (21) according to the flow of the airflow, the distribution duct (23) terminating in an air outlet (9a, 9b) configured to open into at least one area of ​​the passenger compartment (H) of the vehicle,characterized in that the first part (5A) and the second part (5B) are configured to be arranged on either side of the apron (3) in the mounted state of the housing (5) in the vehicle, and in that the housing (5) is configured to be mounted as a single unit in the vehicle and only from one side of the apron (3), the second part (5B) of the housing being configured to pass through the opening (31) in the apron (3) so as to protrude from a second side of the apron (3) opposite to the first side.

2. Device (1) according to the preceding claim, comprising at least one distribution flap (25) arranged in the distribution duct (23), and at least one drive assembly for said flap (25) configured to drive said flap (25) in displacement so as to regulate the distribution of the airflow through the air outlet (9a, 9b).

3. Device (1) according to the preceding claim, wherein the drive assembly of the distribution flap (25) comprises at least one actuator (27) arranged in the first part (5 A) of the housing (5).

4. Device (1) according to the preceding claim, wherein the drive assembly of the distribution flap (25) comprises at least one linking member (29) mechanically connected to said flap (25) and to the actuator (27), the linking member (29) being disposed at least partially in the second part (5B) of the housing (5).

5. Device (1) according to any one of the preceding claims, wherein the first part (5 A) of the housing (5) comprises at least one attachment member to the apron, the housing (5) being configured to be secured to a single face of the apron (3).

6. Device (1) according to any one of the preceding claims, comprising at least one heat exchanger (13, 15) arranged in the first part (5 A) of the housing (5).

7. A vehicle, in particular a motor vehicle, comprising: an engine compartment (M) and a passenger compartment (H), separated by a bulkhead (3) including at least one opening (31), and at least one heating, ventilation and / or air conditioning device (1) according to any one of the preceding claims, characterized in that the first part (5A) and the second part (5B) of the housing (5) are arranged on either side of the bulkhead (3), and in that the housing (5) is configured to be mounted as a single unit in the vehicle and only from a first side of the bulkhead (3), the second part (5B) of the housing being configured to pass through the opening (31) in the bulkhead (3) so as to protrude from a second side of the bulkhead (3) opposite to the first side.

8. Vehicle according to the preceding claim, in which the engine compartment (M) of the vehicle is on the first side of the apron (3) and the passenger compartment (H) is on the second side of the apron (3).

9. Vehicle according to any one of claims 7 or 8, wherein the apron (3) has a first opening (31) through which the second part (5B) of the housing passes and a second opening arranged opposite a recirculation air inlet of the first part (5A) of the housing.

10. A method of mounting a heating, ventilation and / or air conditioning device (1) according to any one of claims 1 to 6 in a vehicle according to any one of claims 7 to 9, comprising the following steps: inserting the housing (5) in one piece into the vehicle, only through a first side of the bulkhead (3), so that the second part (5B) of the housing (5) passes through the opening (31) in the bulkhead (3) so as to protrude from a second side of the bulkhead (3) opposite to the first side and the first part (5A) of the housing is arranged on the first side of the bulkhead (3), and fixing the first part (5A) of the housing (5) to the bulkhead (3).

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