Heating, ventilation and / or air conditioning system for vehicle

Abstract

Title: Vehicle heating, ventilation and / or air conditioning device Abbreviation: Vehicle heating, ventilation and / or air conditioning device (100), comprising: a housing (1) including at least two air outlets named first air outlet (2) and second air outlet (3), a cooler (4), an air inlet partition (5) placed upstream of the cooler and defining upstream of the cooler a first air inlet channel (6) and a second air inlet channel (7), a mixing chamber (8), a separator (12) comprising: a first partition (13) defining in the housing a first space (14) and a second space (15), a second partition (16) defining in the mixing chamber (8) a first mixing zone (17) and a second mixing zone (18), a first movable flap (25), which can be placed in a first position or in a second position,a second movable flap (26) that can be placed in a first or second position. Figure from the abstract: Fig 1,

Description

Title of the invention: Heating, ventilation and / or air conditioning device for vehicles. Field of the invention

[0001] The field of the invention is that of heating, ventilation and / or air conditioning devices for land, sea or air vehicles, for example for motor vehicles. State of the art

[0002] Patent application WO2024002111 describes a vehicle heating, ventilation and / or air conditioning device comprising a casing, a first air outlet and a second air outlet, and a partition wall, the partition wall defining a first space and a second space in the casing.

[0003] The vehicle heating, ventilation and / or air conditioning system also includes a first flap disposed inside the housing and arranged to be actuated in a first position and a second position such that: - when the first flap is in the first position, it is engaged with the partition wall to guide the airflow in the second space towards the second air outlet, and to guide the airflow in the first space towards the first air outlet. - when the first flap is in the second position, it closes the first air outlet, so that the airflow in the first space and the airflow in the second space both flow through the second air outlet.

[0004] The invention is intended in particular to improve this type of heating, ventilation and / or air conditioning device.

[0005] The invention thus relates to a heating, ventilation and / or air conditioning device for a vehicle, comprising: - a housing comprising at least two air outlets, named first air outlet and second air outlet, - a cooler, - an air inlet partition placed upstream of and defining upstream of the cooler a first air inlet channel and a second air inlet channel, - a mixing chamber, - a separator comprising: • a first partition defining a first space and a second space within the casing, • a second partition defining a first mixing zone and a second mixing zone within the mixing room, • a first movable flap, which can be placed in a first position or in a second position such that: • When the first movable flap is placed in the first position, the first space and the second space are kept separate by the separator and the first movable flap so as to guide the airflow from the first air inlet channel into the first space, and to guide the airflow from the second air inlet channel into the second space, • When the first movable flap is placed in the second position, the first space and the second space are fluidly connected so that the airflows circulating in the first air inlet channel and in the second air inlet channel can circulate simultaneously in the first space and in the second space, • a second movable flap that can be placed in a first or second position such that: • when the second movable flap is placed in the first position, the first mixing zone and the second mixing zone are kept separated by the separator and the second movable flap. • when the second movable flap is placed in the second position, the first mixing zone and the second mixing zone are seamlessly connected.

[0006] The terms "upstream" and "downstream" are used in reference to the flow of an airflow circulating within the heating, ventilation and / or air conditioning device.

[0007] According to one aspect of the invention, when the first movable flap is placed in the first position, the first movable flap is in line with the air inlet partition and in line with the first partition of the separator.

[0008] According to one aspect of the invention, when the second movable flap is placed in the first position, the airflow passing through the first space and the first mixing zone is guided to the first air outlet, and the airflow passing through the second space and the second mixing zone is guided to the second air outlet.

[0009] According to one aspect of the invention, when the second movable flap is placed in the second position, the airflow circulating in the second space and in the second mixing zone is guided towards the first mixing zone and the first air outlet.

[0010] According to one aspect of the invention, the first partition of the separator comprises a first section separating the first space and the second space.

[0011] According to one aspect of the invention, the air inlet partition and / or the first partition of the separator and / or the second partition of the separator is made in one piece with a wall of the case, in particular being made from molding, in particular from a plastic material, with the wall of the case.

[0012] Alternatively, the air inlet partition and / or the first partition of the separator and / or the second partition of the separator is a separate part and is arranged to allow fixing to a wall of the housing.

[0013] According to one aspect of the invention, the mixing chamber comprises a lower wall and an upper wall opposite the lower wall.

[0014] According to one aspect of the invention, the lower wall of the mixing chamber delimits a mixing opening between the first space and the second space on the one hand and the mixing chamber on the other hand.

[0015] According to one aspect of the invention, the mixing chamber is arranged downstream of the first space and the second space.

[0016] According to one aspect of the invention, the separator is arranged to guide the airflow through the first space into the first mixing zone, and to guide the airflow through the second space into the second mixing zone.

[0017] According to one aspect of the invention, the first mixing zone comprises at least one opening fluidly connected to the first air outlet.

[0018] In particular, the first mixing zone comprises a plurality of openings fluidly connected to a plurality of air outlets called first air outlets.

[0019] According to one aspect of the invention, at least one of the first air outlets is a defrosting air outlet.

[0020] According to one aspect of the invention, at least one of the first air outlets is a ventilation air outlet.

[0021] According to one aspect of the invention, the second mixing zone comprises at least one opening fluidly connected to the second air outlet.

[0022] In particular, the second mixing zone comprises a plurality of openings fluidly connected to a plurality of air outlets called second air outlets.

[0023] According to one aspect of the invention, at least one of the second air outlets is a foot air outlet.

[0024] According to one aspect of the invention, each air outlet is arranged to communicate with a ventilation nozzle, thus enabling a passenger in the vehicle to be cooled / heated.

[0025] According to one aspect of the invention, the separator can take: - a closed position in which the first movable flap is placed in the first position and the second movable flap is placed in the first position, so that the airflows circulating in the first channel Air flows from the first air intake channel and the second air intake channel separately within the vehicle's heating, ventilation and / or air conditioning system. - at least one open position in which the first movable flap is placed in the second position and / or the second movable flap is placed in the second position, and in which the first space and the second space are fluidly connected inside the vehicle heating, ventilation and / or air conditioning device.

[0026] According to one aspect of the invention, the first movable flap is placed downstream of the cooler.

[0027] According to one aspect of the invention, the first movable flap is placed immediately downstream of the cooler, that is to say, there is no partition placed between the cooler and the movable flap.

[0028] According to one aspect of the invention, the first movable flap and / or the second movable flap is a flat flap, in particular of butterfly type, arranged to be able to be driven in rotation around a central axis of rotation between two extreme positions.

[0029] Alternatively, the first movable flap and / or the second movable flap may be of any other shape, for example curved shape.

[0030] According to one aspect of the invention, the first air inlet channel is arranged to conduct a flow of fresh air, and the second air inlet channel is arranged to conduct a flow of recycled air from inside the vehicle.

[0031] Alternatively, the first air inlet channel and the second air inlet channel can each conduct recycled airflows and / or fresh airflows.

[0032] According to one aspect of the invention, the vehicle heating, ventilation and / or air conditioning system comprises a heating assembly.

[0033] According to one aspect of the invention, the heating assembly comprises at least one heating module, in particular a single heating module.

[0034] According to one aspect of the invention, the heating assembly of the heating, ventilation and / or air conditioning device comprises at least two heating modules, in particular exactly two heating modules.

[0035] According to one aspect of the invention, at least one heating module of the heating assembly is an electric radiator.

[0036] According to one aspect of the invention, at least one heating module of the heating assembly is a high-voltage positive temperature coefficient (high-voltage PTC) heating module, and / or at least one heating module is a heat exchanger using a heat transfer fluid.

[0037] According to one aspect of the invention, the heating assembly is placed downstream of the first partition of the separator, and downstream of the first movable flap.

[0038] According to one aspect of the invention, the heating assembly is placed upstream of the mixing chamber, and upstream of the second movable flap.

[0039] According to one aspect of the invention, the heating assembly is positioned substantially horizontally when the heating, ventilation and / or air conditioning device is mounted on the vehicle.

[0040] According to one aspect of the invention, the cooler is positioned substantially vertically when the vehicle heating, ventilation and / or air conditioning system is mounted on the vehicle.

[0041] According to one aspect of the invention, the cooler and the heating assembly are placed substantially orthogonally when the vehicle heating, ventilation and / or air conditioning system is mounted on the vehicle.

[0042] According to one aspect of the invention, the heating assembly is arranged to be traversed by a first airflow from the first space, and by a second airflow from the second space, and to heat these airflows, producing respectively a first heated airflow and a second heated airflow.

[0043] According to one aspect of the invention, the vehicle heating, ventilation and / or air conditioning device comprises at least one mixing flap, placed downstream of the first space and the second space, and placed upstream of the mixing chamber.

[0044] According to one aspect of the invention, the second partition separates a third space and a fourth space in the housing of the vehicle heating, ventilation and / or air conditioning device, located upstream of the mixing flap and downstream of the heating assembly.

[0045] According to one aspect of the invention, the second partition comprises a first section separating in the mixing chamber the first mixing zone and the second mixing zone, and a second section separating the third space and the fourth space.

[0046] According to one aspect of the invention, the second section of the second partition is arranged to: - guide the first flow of heated air from the first space into the third space and into the first mixing zone, - guide the second flow of heated air from the second space into the fourth space and into the second mixing zone.

[0047] According to one aspect of the invention, a portion of the airflow passing through the first space is guided directly to the first mixing zone, and a portion of the airflow passing through the first space is guided to the heating assembly, the third space and then the first mixing zone.

[0048] According to one aspect of the invention, the mixing flap is arranged to control the portion of the airflow passing through the first space being directed towards the heating assembly.

[0049] According to one aspect of the invention, a portion of the airflow passing through the second space is guided directly to the second mixing zone, and a portion of the airflow passing through the second space is guided to the heating assembly, the fourth space and then the second mixing zone.

[0050] According to one aspect of the invention, the mixing flap is arranged to control the portion of the airflow passing through the second space being directed towards the heating assembly.

[0051] In another embodiment of the invention, the entire airflow through the second space is directed towards the heating assembly.

[0052] According to one aspect of the invention, the mixing chamber is traversed by an airflow from the first space and an airflow from the second space, and the mixing flap is arranged to control the portion of the airflow passing through the mixing zone from the first space and the second space.

[0053] The mixing shutter can be placed in a first extreme position, in a second extreme position, or in an intermediate position located between the first and second extreme positions.

[0054] According to one aspect of the invention, the mixing flap is arranged so that when the mixing flap is placed in the first extreme position, the entire airflow through the first space is guided through the heating assembly, the third space and then the first mixing zone, and the airflow through the second space is guided through the heating assembly, the fourth space and then into the second mixing zone.

[0055] According to one aspect of the invention, the mixing flap is arranged so that when the mixing flap is placed in the second extreme position, the entire airflow through the first space is guided directly to the first mixing zone, and no airflow passes through the heating assembly.

[0056] According to one aspect of the invention, the mixing flap is arranged so that when the mixing flap is placed in an intermediate position: - a portion of the airflow passing through the first space is guided directly into the mixing chamber, - a portion of the airflow passing through the first space is guided through the heating assembly and the third space, then into the mixing chamber.

[0057] According to one aspect of the invention, the mixing flap is a sliding flap, also called a sliding door.

[0058] According to one aspect of the invention, the device includes a mixing flap drive member, arranged to cooperate with the mixing flap to move it between the first extreme position and the second extreme position.

[0059] According to one aspect of the invention, the drive element comprises a toothed wheel actuated in particular by an electric motor actuator.

[0060] According to one aspect of the invention, the housing includes sliding grooves arranged to guide the mixing flap during sliding movements between the first extreme position and the second extreme position.

[0061] According to one aspect of the invention, the movement of the mixing flap between the first extreme position and the second extreme position is made following substantially a curved trajectory, in particular an arc of a circle with a center turned towards the mixing chamber.

[0062] According to one aspect of the invention, the vehicle heating, ventilation and / or air conditioning device comprises a plurality of distribution flaps.

[0063] According to one aspect of the invention, each distribution flap is associated with an air outlet of the vehicle's heating, ventilation and / or air conditioning system, and may take: - an open position allowing the passage of airflow through the mixing chamber via the air outlet corresponding to the distribution flap, - a closed position blocking the passage of airflow through the mixing chamber via the air outlet corresponding to the distribution flap.

[0064] According to one aspect of the invention, the vehicle heating, ventilation and / or air conditioning device comprises at least a first distribution flap associated with the first air outlet, and a second distribution flap associated with the second air outlet.

[0065] According to one aspect of the invention, the vehicle heating, ventilation and / or air conditioning system comprises: - a ventilation distribution flap associated with the ventilation air outlet, - a foot distribution flap associated with the foot air outlet, - a defrost distribution flap associated with the defrost air outlet,

[0066] According to one aspect of the invention, the foot distribution flap is the second movable flap.

[0067] According to one aspect of the invention, the first position of the second movable flap corresponds to the open position of the second movable flap allowing the passage of the airflow towards the second air outlet, and the second position of the second movable flap corresponds to the closed position of the second movable flap blocking the passage of the airflow towards the second air outlet.

[0068] According to one aspect of the invention, the housing comprises two lateral faces between which extend the lower wall and upper wall of the mixing chamber.

[0069] The height of the housing is defined as the dimension measured along a height axis Z that passes through the lower and upper walls of the mixing chamber. This Z axis corresponds to the vertical when the vehicle heating, ventilation and / or air conditioning system is mounted on the vehicle.

[0070] According to one aspect of the invention, the cooler is positioned substantially vertically when a heating, ventilation and / or air conditioning device is mounted on the vehicle.

[0071] The invention advantageously allows the size of the heating, ventilation and / or air conditioning device to be reduced depending on the height of the casing.

[0072] The invention advantageously allows control of the separation of airflows inside the heating, ventilation and / or air conditioning device, in particular control of the separation of airflows upstream of the heating assembly and the mixing chamber.

[0073] The invention advantageously allows separate control of the separation of airflows and the distribution of airflows to the different air outlets of the vehicle heating, ventilation and / or air conditioning system.

[0074] According to one aspect of the invention, the vehicle heating, ventilation and / or air conditioning system is arranged to be able to assume a plurality of configurations, each configuration being defined by at least: - the position of the separator, - the position of the mixing shutter, - the position of each of the distribution flaps.

[0075] According to one aspect of the invention, the heating, ventilation and / or air conditioning device is configured to be able to take a two-layer configuration in which the separator is in the closed position.

[0076] In particular, the vehicle heating, ventilation and / or air conditioning system is arranged to be able to assume a defrosting / heating configuration, in which: - the separator is in the closed position, - the mixing shutter is placed in the first extreme position, - the defrost distribution flap is in the open position, and in particular in which the first air intake channel is arranged to conduct a flow of fresh air, and the second air intake channel is arranged to conduct a flow of recycled air from inside the vehicle.

[0077] Advantageously, the heating and defrosting configuration allows the use of dry, heated outside air for defrosting the vehicle's windshield, and the use of recycled air from inside the vehicle for foot heating.

[0078] Advantageously, this separation of a fresh airflow and a recycled airflow makes it possible in particular to use a recycled airflow for heating the passenger compartment, while using an outside airflow for demisting the vehicle's windshield.

[0079] According to one aspect of the invention, the heating, ventilation and / or air conditioning device is arranged to be able to take a single-layer configuration in which the separator is in an open position.

[0080] The heating, ventilation and / or air conditioning system is configured to operate selectively according to an operating mode chosen by the user, this operating mode being able to be chosen from at least: - a defrosting / heating mode, - a warm defrosting mode, - a mixed defrosting mode, - a cold ventilation mode, - a mixed ventilation mode.

[0081] The invention also relates to a method of thermal regulation of a vehicle by means of a heating, ventilation and / or air conditioning device as described, comprising the selective activation by the user of an operating mode, this operating mode being able in particular to be chosen from at least one of the following operating modes: - a defrosting / heating mode, - a warm defrosting mode, - a mixed defrosting mode, - a cold ventilation mode, - a mixed ventilation mode.

[0082] According to one aspect of the invention, the activation of the defrost / heating mode comprises: - a step of placing the separator in the closed position, - a step of placing the mixing shutter in the first position extreme, - a step involving placing the defrost distribution flap in the open position, - a step of placing the mixing flap in the first extreme position blocking the passage section for the cold section of the fresh air channel of the mixing opening.

[0083] According to one aspect of the invention, activating the cold ventilation mode includes: - A step of placing the separator in an open position in which: • the first movable flap is placed in the second position, • the second movable flap is placed in the second position, • The first space and the second space are fluidly connected, - a step of placing the mixing flap in the second extreme position in which the entire airflow passing through the first space is guided directly to the first mixing zone, and no airflow passes through the heating assembly. - a step involving placing the ventilation distribution flap in the open position, - a step of placing the defrost distribution flap in the closed position.

[0084] According to one aspect of the invention, the activation of the mixed ventilation mode comprises: - a step of placing the separator in an open position in which: • the first movable flap is placed in the second position, • the second movable flap is placed in the second position, • The first space and the second space are fluidly connected, - a step of placing the mixing flap in an intermediate position in which part of the airflow passing through the first space is guided directly to the first mixing zone, and part of the airflow passing through the first space is guided through the heating assembly, - a step involving placing the ventilation distribution flap in the open position, - a step of placing the defrost distribution flap in the closed position.

[69] According to one aspect of the invention, activation of the hot defrost mode comprises: - a step of placing the separator in an open position in which: • the first movable flap is placed in the second position, • the second movable flap is placed in the second position, • The first space and the second space are fluidly connected, - a step of placing the mixing flap in the first extreme position in which the entire airflow passing through the first space is guided through the heating assembly, - a step involving placing the ventilation distribution flap in the closed position, - a step of positioning the distribution flap for feet in the closed position, - a step of placing the defrost distribution flap in the open position.

[0085] According to one aspect of the invention, the activation of the mixed defrosting mode comprises: - a step of placing the separator in an open position in which: • the first movable flap is placed in the second position, • the second movable flap is placed in the second position, • The first space and the second space are fluidly connected, - a step of placing the mixing flap in an intermediate position in which part of the airflow passing through the first space is guided directly to the first mixing zone, and part of the airflow passing through the first space is guided through the heating assembly, - a step involving placing the ventilation distribution flap in the closed position, - a step of positioning the distribution flap for feet in the closed position, - a step of placing the defrost distribution flap in the open position. List of figures

[0086] Other features, details and advantages of the invention will become clearer upon reading the following description on the one hand, and several illustrative and non-limiting examples of embodiments given with reference to the accompanying schematic drawings on the other hand, in which:

[0087] [Fig-1] Fig. 1 is a schematic representation of a heating device, ventilation and / or air conditioning for vehicles according to an embodiment of the invention, placed in a defrosting / heating mode,

[0088] [Fig.2] Fig.2 is a schematic representation of a heating device, ventilation and / or air conditioning for vehicles according to an embodiment of the invention, placed in a hot defrosting mode,

[0089] [Fig.3] Fig.3 is a schematic representation of a heating device, ventilation and / or air conditioning for vehicles according to an embodiment of the invention, placed in a mixed defrosting mode,

[0090] [Fig.4] Fig.4 is a schematic representation of a heating, ventilation and / or air conditioning device for a vehicle according to an embodiment of the invention, placed in a cold ventilation mode,

[0091] [Fig.5] The [Fig.5] is a schematic representation of a heating, ventilation and / or air conditioning device for a vehicle according to an embodiment of the invention, placed in a mixed ventilation mode.

[0092] The features, variants, and different embodiments of the invention can be combined in various ways, provided they are not incompatible or mutually exclusive. In particular, variants of the invention may be conceived comprising only a selection of features, described hereafter in isolation from the other described features, if this selection of features is sufficient to confer a technical advantage and / or to differentiate the invention from the prior art. Detailed description

[0093] Figure 1 shows a heating, ventilation and / or air conditioning device for a vehicle 100 according to an embodiment of the invention, placed in a defrosting / heating mode,

[0094] The heating, ventilation and / or air conditioning device for vehicle 100, includes a housing 1 comprising at least two air outlets named first air outlet 2 and a second air outlet 3.

[0095] The device 100 comprises a cooler 4, and an air inlet partition 5 placed upstream of this cooler 4 and defining upstream of the cooler 4 a first air inlet channel 6 and a second air inlet channel 7,

[0096] Device 100 includes a mixing chamber 8.

[0097] The device 100 includes a separator 12 comprising: - a first partition 13 defining in the housing 1 a first space 14 and a second space 15, - a second partition 16 defining in the mixing room 8 a first mixing zone 17 and a second mixing zone 18, - a first movable flap 25, which can be placed in a first position or in a second position.

[0098] The first partition 13 of the separator 12 has a first section separating the first space 14 and the second space 15.

[0099] The air inlet partition 5, the first partition 13 and the second partition 16 of the separator 12 are made in one piece with a wall of the housing 1, in particular being made from molding, in particular from a plastic material, with the wall of the housing 1.

[0100] According to an embodiment not shown, the air inlet partition 5 and / or the first partition 13 of the separator 12 and / or the second partition 16 of the separator 12 is a separate part and is arranged to allow fixing to a wall of the housing 1.

[0101] In the heating defrost mode of the device 100, the first movable flap 25 is placed in the first position and is in line with the air inlet partition 5 and the first partition 13 of the separator 12. The first space 14 and the second space 15 are kept separate by the separator 12 and the first movable flap 25 so as to guide the airflow from the first air inlet channel 6 into the first space 14, and guide the airflow from the second air inlet channel 7 into the second space 15.

[0102] The vehicle heating, ventilation and / or air conditioning device 100 includes a second movable flap 26. In the heating defrost mode, the second movable flap is placed in a first position in which the airflow through the first space 14 and the first mixing zone 17 is guided towards the first air outlets 2, and the airflow through the second space 15 and the second mixing zone 18 is guided towards the second air outlets 3. The first mixing zone 17 and the second mixing zone 18 are kept separate by the separator and the second movable flap.

[0103] In the heating defrost mode, the separator 12 takes a closed position in which the first movable flap 25 is placed in the first position and the second movable flap 26 is placed in the first position, so that the airflows circulating in the first air inlet channel 6 and in the second air inlet channel 7 circulate separately inside the vehicle heating, ventilation and / or air conditioning device 100.

[0104] The terms "upstream" and "downstream" are used with reference to the flow of an airflow circulating within the heating, ventilation and / or air conditioning device 100.

[0105] The mixing chamber 8 comprises a lower wall 30 and an upper wall 31 opposite the lower wall 30.

[0106] The lower wall 30 of the mixing chamber 8 delimits a mixing opening between the first space 14 and the second space 15 on one side and the mixing chamber 8 on the other.

[0107] The mixing chamber 8 is located downstream of the first space 14 and the second space 15.

[0108] The separator 12 is arranged to guide the airflow through the first space 14 into the first mixing zone 17, and to guide the airflow through the second space 15 into the second mixing zone 18.

[0109] The first mixing zone 17 has at least one opening fluidly connected to the first air outlet 2, here two air outlets named first air outlets 2: a defrost air outlet 35 and a ventilation air outlet 36.

[0110] The second mixing zone 18 has at least one opening fluidly connected to the second air outlet 3, here an air outlet for feet 37.

[0111] According to an embodiment not shown, the second mixing zone 18 comprises a plurality of openings fluidly connected to a plurality of air outlets called second air outlets 3.

[0112] Each air outlet 2,3 is arranged to communicate with a ventilation nozzle not shown here, thus enabling a passenger in the vehicle to be cooled / heated.

[0113] The first movable flap 25 is placed downstream of the cooler 4.

[0114] The first movable flap 25 is placed immediately downstream of the cooler 4, that is- that is to say not that there is no partition placed between cooler 4 and the movable flap.

[0115] The first movable flap 25 and the second movable flap 26 are flat butterfly-type flaps, arranged to be able to be driven in rotation around a central axis of rotation between two extreme positions.

[0116] According to an embodiment not shown, the first movable flap 25 and / or the second movable flap 26 can be of any other shape, for example curved shape.

[0117] The first air inlet channel 6 is arranged to conduct a flow of fresh air, and the second air inlet channel 7 is arranged to conduct a flow of recycled air from inside the vehicle. For this purpose, the device includes, for example, an air inlet module (not shown) comprising a fresh air inlet and a recycled air inlet and at least one selection means for connecting the fresh air inlet to the first air inlet channel 6, and connecting the recycled air inlet to the second air inlet channel 7 in a "dual layer" configuration of the selection means, for connecting the fresh air inlet alone to the first air duct 6 and the second air duct 7 in a "fresh air" configuration, and for connecting the recycled air inlet alone to the first air duct 6 and the second air duct 7 in a "recycled air" configuration.

[0118] According to an embodiment not shown, the first air inlet channel 6 and the second air inlet channel 7 can each conduct recycled airflows and / or fresh airflows.

[0119] The vehicle heating, ventilation and / or air conditioning system 100 comprises a heating unit 40 comprising two heating modules: one heating module 41 of the heating unit 40 is an electric heater and another heating module 41 is, for example, a water heater or a condenser.

[0120] According to an embodiment not shown, the heating assembly 40 may contain a single heating module 41, or a number of heating modules greater than two.

[0121] According to an embodiment not shown, the heating module(s) 41 can be of any type, including electric radiators, high voltage PTCs or heat exchangers using a heat transfer fluid.

[0122] The heating assembly 40 is placed downstream of the first partition 13 of the separator 12, and downstream of the first movable flap 25, upstream of the mixing chamber 8, and upstream of the second movable flap 26.

[0123] The heating assembly 40 is positioned substantially horizontally when device 100 is mounted on the vehicle, and the cooler 4 is positioned substantially vertically when device 100 is mounted on the vehicle.

[0124] The cooler 4 and the heating assembly 40 are here placed in a substantially orthogonal manner when the device 100 is mounted on the vehicle.

[0125] The heating assembly 40 is arranged to be traversed by a first airflow from the first space 14, and by a second airflow from the second space 15, and to heat these airflows, producing respectively a first heated airflow and a second heated airflow.

[0126] The device 100 includes at least one mixing flap 45, placed downstream of the first space 14 and the second space 15, and placed upstream of the mixing chamber 8.

[0127] The second partition 16 comprises a first section 50 separating in the mixing chamber 8 the first mixing zone 17 and the second mixing zone 18, and a second section 51 separating a third space 52 and a fourth space 53 in the housing 1 of the device 100, placed upstream of the mixing flap 45 and downstream of the heating assembly 40.

[0128] The second section 51 of the second partition 16 is arranged to: - guide the first flow of heated air from the first space 14 into the third space 52 and into the first mixing zone 17 - guide the second flow of heated air from the second space 15 into the fourth space 53 and into the second mixing zone 18.

[0129] A portion of the airflow passing through the first space 14 is guided directly to the first mixing zone 17, and a portion of the airflow passing through the first space 14 is guided to the heating assembly 40, the third space 52 and then the first mixing zone 17.

[0130] The mixing flap 45 is arranged to control the portion of the airflow passing through the first space 14 being directed towards the heating assembly 40.

[0131] In this embodiment, the entire airflow passing through the second space 15 is directed towards the heating assembly 40.

[0132] In an embodiment not shown, a portion of the airflow passing through the second space 15 is guided directly to the second mixing zone 18, and a portion of the airflow passing through the second space 15 is guided to the heating assembly 40, the fourth space 53 and then the second mixing zone 18. The mixing flap 45 is then arranged to control the portion of the airflow passing through the second space 15 being directed towards the heating assembly 40.

[0133] The mixing chamber 8 is traversed by an airflow from the first space 14 and an airflow from the second space 15, and the mixing flap 45 is arranged to control the portions of the airflow traversing the mixing area from the first space 14 and the second space 15.

[0134] The mixing flap 45 can be placed in a first extreme position, in a second extreme position, or in an intermediate position located between the first and second extreme positions.

[0135] In the heating defrost mode, the mixing flap 45 is placed in the first extreme position. The entire airflow passing through the first space 14 is guided through the heating unit 40, the third space 52 and then the first mixing zone 17, and the airflow passing through the second space 15 is guided through the heating unit 40, the fourth space and then into the second mixing zone 18.

[0136] The mixing shutter 45 is a sliding shutter, also called a sliding door.

[0137] The device includes a drive element 55 for the mixing flap 45, arranged to cooperate with the mixing flap 45 to move it between the first extreme position and the second extreme position.

[0138] This drive element 55 includes a toothed wheel actuated in particular by an electric motor actuator.

[0139] According to one aspect of the invention, the housing 1 includes sliding grooves 56 arranged to guide the mixing flap 45 during sliding movements between the first extreme position and the second extreme position.

[0140] The movement of the mixing flap 45 between the first extreme position and the second extreme position is made following substantially a curved trajectory, in particular an arc of a circle with a center turned towards the mixing chamber 8.

[0141] The device 100 comprises a plurality of distribution flaps 60, each distribution flap 60 being associated with an air outlet of the device 100, and being able to take: - an open position allowing the passage of the airflow through the mixing chamber 8 through the air outlet corresponding to the distribution flap 60, - a closed position blocking the passage of the airflow through the mixing chamber 8 through the air outlet corresponding to the distribution flap 60.

[0142] The device 100 includes at least a first distribution flap associated with the first air outlet 2, and a second distribution flap associated with the second air outlet 3.

[0143] In this embodiment, device 100 comprises: - a ventilation distribution flap 66 associated with the ventilation air outlet 36, - a distribution flap for 67 feet associated with the air outlet for 37 feet, - a defrost distribution flap 65 associated with the defrost air outlet 35, - The defrost distribution flap 65 is the second movable flap 26.

[0144] The first position of the second movable flap 26 corresponds to the open position of the second movable flap 26 allowing the passage of the airflow towards the second air outlet 3, and the second position of the second movable flap 26 corresponds to the closed position of the second movable flap 26 blocking the passage of the airflow towards the second air outlet 3.

[0145] The housing 1 comprises two lateral faces between which extend the lower wall 30 and the upper wall 31 of the mixing chamber 8.

[0146] The height of the housing 1 is defined as the dimension measured along a height axis Z which passes through the lower wall and the upper wall of the mixing chamber 8. This axis Z corresponds to the vertical when the device 100 is mounted on the vehicle.

[0147] The cooler 4 is positioned substantially vertically when device 100 is mounted on the vehicle.

[0148] The invention advantageously allows the size of the heating, ventilation and / or air conditioning device to be reduced 100 depending on the height of the casing 1.

[0149] The invention advantageously allows control of the separation of airflows inside the device 100, in particular control of the separation of airflows upstream of the heating assembly 40 and the mixing chamber 8.

[0150] The invention advantageously allows separate control of the separation of airflows and the distribution of airflows to the different air outlets of the device 100.

[0151] The device 100 is arranged to be able to take on a plurality of configurations, each configuration being defined by: - the position of separator 12, - the position of the mixing shutter 45, - the position of each of the distribution flaps.

[0152] In particular, the heating, ventilation and / or air conditioning device for vehicle 100 is arranged to be able to assume a defrosting / heating configuration, in which: - Separator 12 is in the closed position, - Mixing shutter 45 is placed in the first extreme position, - the distribution flap 60 associated with the defrost air outlet is placed in open position and in particular in which the first air inlet channel 6 is arranged to conduct a flow of fresh air, and the second air inlet channel 7 is arranged to conduct a flow of recycled air from inside the vehicle.

[0153] In the heating defrost configuration, the device 100 takes a two-layer configuration in which the separator 12 is in the closed position.

[0154] Advantageously, the heating and defrosting configuration allows dry, heated outside air to be used for defrosting the vehicle's windshield, and recycled air from inside the vehicle to be used for foot heating.

[0155] Advantageously, this separation of a fresh airflow and a recycled airflow makes it possible in particular to use a recycled airflow for heating the passenger compartment, while using an outside airflow for demisting the vehicle's windshield.

[0156] Figure 2 shows a heating, ventilation and / or air conditioning device for a vehicle 100 according to an embodiment of the invention, placed in a hot defrosting mode,

[0157] In the warm defrosting mode, the device 100 assumes a single-layer configuration in which the separator 12 is in an open position. The first movable flap 25 is placed in the second position, and the second movable flap 26 is placed in the second position. The first space 14 and the second space 15 are fluidly connected within the device 100.

[0158] The first movable flap 25 is placed in the second position, so that the first space 14 and the second space 15 are fluidly connected and the airflows circulating in the first air inlet channel 6 and in the second air inlet channel 7 can circulate both in the first space 14 and in the second space 15.

[0159] The second movable flap 26 is placed in the second position, so that the airflow circulating in the second space 15 and in the second mixing zone 18 is guided to the first mixing zone 17 and the first air outlets 2. The first mixing zone and the second mixing zone are fluidly connected.

[0160] The mixing flap 45 is placed in the first extreme position. The entire airflow passing through the first space 14 is guided through the heating assembly 40, the third space 52 and then the first mixing zone 17, and the airflow passing through the second space 15 is guided through the heating assembly 40, the fourth space and then into the second mixing zone 18.

[0161] Figure 3 shows a heating, ventilation and / or air conditioning device for vehicle 100 according to an embodiment of the invention, placed in a mixed defrosting mode.

[0162] In the mixed defrosting mode, the device 100 assumes a single-layer configuration in which the separator 12 is in an open position. The first movable flap 25 is placed in the second position, and the second movable flap 26 is placed in the second position. The first space 14 and the second space 15 are fluidly connected within the device 100.

[0163] The mixing flap 45 is placed in an intermediate position in which: - a portion of the airflow passing through the first space 14 is guided directly into the mixing chamber 8, - a portion of the airflow passing through the first space 14 is guided through the heating assembly 40 and the third space 52, then into the mixing chamber 8.

[0164] Figure 4 shows a heating, ventilation and / or air conditioning device for vehicle 100 according to an embodiment of the invention, placed in a cold ventilation mode.

[0165] In the cold ventilation mode, the device 100 assumes a single-layer configuration in which the separator 12 is in an open position. The first movable flap 25 is placed in the second position, and the second movable flap 26 is placed in the second position. The first space 14 and the second space 15 are fluidly connected within the device 100.

[0166] The mixing flap 45 is arranged so that when the mixing flap 45 is placed in the second extreme position, the entire airflow through the first space 14 is guided directly to the first mixing zone 17, and no airflow passes through the heating assembly 40.

[0167] Figure 5 shows a heating, ventilation and / or air conditioning device for vehicle 100 according to an embodiment of the invention, placed in a mixed ventilation mode.

[0168] In the mixed ventilation mode, the device 100 assumes a single-layer configuration in which the separator 12 is in an open position. The first movable flap 25 is placed in the second position, and the second movable flap 26 is placed in the second position. The first space 14 and the second space 15 are fluidically connected within the device 100.

[0169] The mixing flap 45 is placed in an intermediate position in which: - a portion of the airflow passing through the first space 14 is guided directly into the mixing chamber 8, a portion of the airflow passing through the first space 14 is guided through the heating assembly 40 and the third space 52, then into the mixing chamber 8.

Claims

Demands

1. Vehicle heating, ventilation and / or air conditioning device (100), comprising: - a housing (1) comprising at least two air outlets named first air outlet (2) and second air outlet (3), - a cooler (4), - an air inlet partition (5) placed upstream of the cooler and defining upstream of the cooler a first air inlet channel (6) and a second air inlet channel (7), - a mixing chamber (8), - a separator (12) comprising: • a first partition (13) defining in the casing a first space (14) and a second space (15), • a second partition (16) defining in the mixing chamber (8) a first mixing zone (17) and a second mixing zone (18), • a first movable flap (25), which can be placed in a first position or in a second position such that: when the first movable flap (25) is placed in the first position, the first space (14) and the second space (15) are kept separate by the separator (12) and the first movable flap (25) so as to guide the airflow from the first air inlet channel (6) into the first space (14), and guide the airflow from the second air inlet channel (7) into the second space (15), when the first movable flap (25) is placed in the second position, the first space (14) and the second space (15) are fluidly connected so that the airflows circulating in the first air inlet channel (6) and in the second air inlet channel (7) can circulate simultaneously in the first space (14) and in the second space (15), • a second movable flap (26) that can be placed in a first or second position such that: • when the second movable flap (26) is placed in the first position, the first mixing zone (17) and the second mixing zone (18) are kept separate by the separator and the second movable flap. • when the second movable flap (26) is placed in the second position, the first mixing zone and the second mixing zone are seamlessly connected.

2. Vehicle heating, ventilation and / or air conditioning device (100) according to claim 1, wherein when the first movable flap (25) is placed in the first position, the first movable flap (25) is in line with the air inlet partition (5) and in line with the first partition (13) of the separator (12).

3. Vehicle heating, ventilation and / or air conditioning device (100) according to claim 1, wherein: - when the second movable flap (26) is placed in the first position, the airflow passing through the first space (14) and the first mixing zone (17) is guided towards the first air outlet (2), and the airflow passing through the second space and the second mixing zone (18) is guided towards the second air outlet (3), - when the second movable flap (26) is placed in the second position, the airflow circulating in the second space (15) and in the second mixing zone (18) is guided towards the first mixing zone (17) and the first air outlet (2).

4. Vehicle heating, ventilation and / or air conditioning device (100) according to any one of the preceding claims, wherein the air inlet partition (5) and / or the first partition (13) of the separator (12) and / or the second partition (16) of the separator is made in one piece with a wall of the housing (1), in particular being molded, in particular from a plastic material, with the wall of the housing (1).

5. Vehicle heating, ventilation and / or air conditioning device (100) according to any one of the preceding claims, wherein the separator (12) can assume: - a closed position in which the first movable flap (25) is placed in the first position and the second movable flap (26) is placed in the first position, so that the airflows circulating in the first air inlet channel (6) and in the second air inlet channel (7) circulate separately inside the vehicle heating, ventilation and / or air conditioning device (100), - at least one open position in which the first movable flap (25) is placed in the second position and / or the second movable flap (26) is placed in the second position, and in which the first space (14) and the second space (15) are fluidly connected inside the vehicle heating, ventilation and / or air conditioning device (100).

6. Vehicle heating, ventilation and / or air conditioning device (100) according to any one of the preceding claims, wherein the first movable flap (25) and / or the second movable flap (26) is a flat flap, in particular of butterfly type, arranged to be able to be driven in rotation about a central axis of rotation between two extreme positions.

7. Vehicle heating, ventilation and / or air conditioning device (100) according to any one of the preceding claims, wherein the first air inlet channel (6) is arranged to conduct a flow of fresh air, and the second air inlet channel (7) is arranged to conduct a flow of recycled air from inside the vehicle.

8. Vehicle heating, ventilation and / or air conditioning device (100) according to any one of the preceding claims, comprising a heating assembly (40) including at least one heating module (41).

9. A vehicle heating, ventilation and / or air conditioning device according to claim 8, wherein the heating assembly (40) is located downstream of the first partition of the separator (12) and the first movable flap (25), and upstream of the mixing chamber (8) and the second movable flap (26).

10. Vehicle heating, ventilation and / or air conditioning device (100) according to any one of the preceding claims, comprising at least one mixing flap (45), located downstream of the first space (14) and the second space (15), and located upstream of the mixing chamber (8).

11. Vehicle heating, ventilation and / or air conditioning device (100) according to claims 9 and 10, wherein the second partition (16) separates a third space (52) and a fourth space (53) in the housing (1) of the vehicle heating, ventilation and / or air conditioning device (100), located upstream of the mixing flap (45) and downstream of the heating assembly (40).

12. Vehicle heating, ventilation and / or air conditioning device (100) according to claims 9 and 10, and optionally claim 11, wherein the mixing flap (45) is arranged to control the portion of the airflow passing through the first space (14) being directed towards the heating assembly (40) and / or to control the portion of the airflow passing through the second space (15) being directed towards the heating assembly (40).

13. A vehicle heating, ventilation and / or air conditioning device (100) according to any one of the preceding claims, comprising a plurality of distribution flaps (60), each distribution flap being associated with an air outlet (2,3) of the vehicle heating, ventilation and / or air conditioning device (100), and being able to take: - an open position allowing the passage of the airflow through the mixing chamber (8) through the air outlet corresponding to the distribution flap (60), - a closed position blocking the passage of the airflow through the mixing chamber (8) through the air outlet corresponding to the distribution flap (60).

14. A vehicle heating, ventilation and / or air conditioning device (100) according to claim 13, arranged to be able to assume a plurality of configurations, each configuration being defined by at least: the position of the separator (12),

15.

16. - the position of the mixing shutter (45), - the position of each of the distribution flaps (60). Heating, ventilation and / or air conditioning device (100) according to any one of the preceding claims, configured to operate selectively according to an operating mode chosen by the user, this operating mode being able to be chosen in particular from at least one of the following operating modes: - a defrosting / heating mode, - a warm defrosting mode, - a mixed defrosting mode, - a cold ventilation mode, - a mixed ventilation mode. Method for regulating the temperature of a vehicle by means of a heating, ventilation and / or air conditioning device (100) according to any one of the preceding claims, comprising the selective activation by the user of an operating mode, this operating mode being able to be chosen in particular from at least one of the following operating modes: - a defrosting / heating mode, - a warm defrosting mode, - a mixed defrosting mode, - a cold ventilation mode, - a mixed ventilation mode.

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