WO2023203149A1 - Dispositif de chauffage, ventilation et/ou climatisation pour véhicule automobile - Google Patents
Dispositif de chauffage, ventilation et/ou climatisation pour véhicule automobile Download PDFInfo
- Publication number
- WO2023203149A1 WO2023203149A1 PCT/EP2023/060328 EP2023060328W WO2023203149A1 WO 2023203149 A1 WO2023203149 A1 WO 2023203149A1 EP 2023060328 W EP2023060328 W EP 2023060328W WO 2023203149 A1 WO2023203149 A1 WO 2023203149A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mixing chamber
- air
- shutter
- sliding shutter
- drive member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H1/00064—Air flow details of HVAC devices for sending air streams of different temperatures into the passenger compartment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00664—Construction or arrangement of damper doors
- B60H1/00692—Damper doors moved by translation, e.g. curtain doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00078—Assembling, manufacturing or layout details
- B60H2001/00092—Assembling, manufacturing or layout details of air deflecting or air directing means inside the device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00114—Heating or cooling details
- B60H2001/00135—Deviding walls for separate air flows
Definitions
- the invention relates to the field of heating, ventilation and/or air conditioning devices for land, sea or air vehicles, for example for land motor vehicles.
- Patent application FR3100311 describes a heating, ventilation and/or air conditioning device with a small vertical footprint, comprising an elongated housing housing an evaporator intended to cool and dehumidify the air flow and a radiator intended to heat part of the flow of air.
- the air flow is introduced into the housing via at least one air inlet then is directed via a blower which comprises a motor and a bladed wheel.
- the blower routes the air flow from the air inlet to at least one outlet, after it has been thermally treated by the heat exchangers.
- This device includes a mixing flap making it possible to regulate the proportion of hot air flow and the proportion of cold air flow in a mixing chamber.
- the mixing shutter corresponds to a sliding door type shutter, that is to say it includes a sliding door on which at least one rack is arranged.
- a gear complementary to the rack is rotated around an axis by an actuator. Rotation of the gear causes the sliding door to move between two extreme positions.
- the sliding door is configured to adopt an intermediate configuration.
- the invention aims in particular to improve this type of heating, ventilation and/or air conditioning device.
- the subject of the invention is therefore a heating, ventilation and/or air conditioning device for a vehicle, comprising in a housing of this device:
- the mixing chamber comprising a lower wall and an upper wall opposite the lower wall, the lower wall being provided with a mixing opening between, d 'on the one hand, the cold and hot air channels and, on the other hand, the mixing chamber, this mixing opening comprising a passage section for the cold air channel and a passage section for the hot air,
- a distribution air channel arranged to bring air from the mixing chamber towards an air nozzle, in particular an air nozzle for feet opening into a passenger compartment of the vehicle, towards a floor of this vehicle,
- this mixing flap being movable between a first extremal position blocking the cold air passage section of the mixing opening preventing the flow of cold air from the cold air channel from circulating towards the mixing chamber, and a second extremal position blocking the hot air passage section of the mixing opening preventing the flow of hot air from the hot air channel to circulate towards the mixing chamber, this movable flap being arranged to take an intermediate position between these extremal positions, intermediate position in which this flap defines a bypass channel distinct from the mixing chamber, and allowing cold air to circulate from the cold air channel to the hot air channel through this bypass channel, the mixing flap extending on the lower wall of the mixing chamber,
- At least one air guide arranged to guide air leaving the bypass channel towards the distribution air channel, this air guide extending into the mixing chamber between the lower wall and the upper wall , and having an extent chosen so as to leave a passage of air from the mixing opening towards the upper wall of the mixing chamber.
- height is defined as the dimension measured along a height axis which passes through the lower and upper walls of the mixing chamber. For example, a point that is halfway between the bottom and top walls of the mixing chamber is a point that is equidistant from these walls.
- the air guide according to the invention is thus at an intermediate height between the lower and upper walls of the mixing chamber.
- This air guide makes it possible to guide the air flow coming from the bypass channel towards the distribution channel, while reducing the temperature stratification in this air flow.
- the air guide makes it possible to reduce the height of the air flow, and to separate this air flow from the volume on the other side of the air guide, which is facing the upper wall of the mixing chamber.
- the invention thus makes it possible to improve the thermal performance of the device by avoiding this type of temperature stratification.
- the air guide has a height which varies between the bypass channel and the distribution channel.
- this air guide is closer to the lower wall of the mixing chamber than to the upper wall, at one end facing the bypass channel, and this air guide is closer to the upper wall of the chamber mixer than the lower wall, at one end facing the distribution channel.
- the air guide has a curved profile with an inflection point.
- the air guide has a planar profile.
- the air guide comprises, at its end facing the bypass channel, a portion substantially parallel to the lower wall of the mixing chamber.
- the air guide comprises, at its end facing the distribution channel, a portion substantially parallel to the upper wall of the mixing chamber.
- the air guide has a strip shape, in particular with two parallel longitudinal edges.
- this strip has a profile in side view with a point of inflection.
- this air guide is made of a monolithic part.
- the air guide is made in one piece with a wall of the housing, in particular being molded, in particular from a plastic material, with the wall of the housing.
- the air guide has at least one fixing lug, in particular two fixing lugs, arranged to allow the fixing of this air guide on a side wall of the mixing chamber.
- this or these fixing lugs are perpendicular to the strip.
- this or these fixing lugs are arranged to allow fixing by screw, on the housing.
- the distribution channel comprises a distribution flap rotating around an axis of rotation, in particular a butterfly type flap, to control the flow of air which enters this distribution channel , and the air guide has a width measured parallel to this axis of rotation of the shutter, which is less than the width of this distribution shutter.
- the air guide has a width which is less than the width of the mixing flap.
- the device comprises two sliding mixing flaps and two air guides each associated respectively with one of these mixing flaps.
- the mixing shutter is a sliding shutter, also called a sliding door.
- this sliding mixing shutter has two parallel longitudinal edges and the shutter is arranged to be able to slide between the extremal positions according to a trajectory which runs along the longitudinal edges of the shutter.
- the sliding shutter comprises, at each longitudinal end, two transverse projections perpendicular to the longitudinal edges, and projecting in the direction of the mixing opening.
- the transverse projections come to bear on the lower wall when the shutter is in the extremal positions.
- the transverse projections face respectively the passage section for the cold air channel and the passage section for the hot air channel of so as to form the bypass channel allowing air to flow from one passage section to the other.
- the housing comprises a partition wall between the cold air channel and the hot air channel
- the shutter comprises a main face between the two transverse projections, this main face being arranged to define the bypass channel which is between this main face and the partition wall.
- this main face is set back from the partition wall to leave sufficient space to form the bypass channel.
- the longitudinal edges of this main face are curved.
- this main face of the shutter has a curvature whose center of curvature is directed towards the upper wall.
- this main face of the shutter has a concavity directed towards the mixing chamber.
- the device comprises a shutter drive member, arranged to cooperate with the shutter to move it between the extremal positions.
- this drive member comprises a toothed wheel actuable in particular by an electric motor actuator.
- the shutter comprises a rack along the longitudinal edge, in particular two racks each along a longitudinal edge, and the toothed wheel of the drive member cooperates with the rack of the pane to move this pane.
- each rack comprises a strip of grooves.
- the drive member comprises two toothed wheels connected by a connecting rod which forms a common axis of rotation of the wheels, and each toothed wheel cooperates with a rack of the shutter.
- each shutter is associated with two toothed wheels which rotate simultaneously.
- the housing comprises sliding grooves arranged to receive the longitudinal edges of the shutter and guide the shutter during sliding movements between the extremal positions.
- these grooves generally have an arcuate shape.
- these grooves serve as a rail for the shutter.
- the movement between the extremal positions of the shutter is done substantially following a curved trajectory, in particular in an arc of a circle with a center facing the mixing chamber.
- the drive member in particular the toothed wheel(s), is arranged on the side of the mixing flap facing the mixing chamber.
- the air guide extends substantially from the toothed wheel to the distribution flap of the distribution channel.
- the mixing chamber communicates with at least one first upper air outlet formed on the upper wall, and an upper sliding shutter is arranged to open or close this air outlet.
- this first air outlet is arranged to communicate with a side or central ventilation nozzle thus making it possible to cool/heat a passenger of the vehicle.
- the upper sliding shutter is of the sliding door type. According to one of the aspects of the invention, this upper sliding shutter has two parallel longitudinal edges and the shutter is arranged to be able to slide between the open and closed positions of this first upper air outlet.
- this upper sliding shutter has a curvature whose center of curvature is directed towards the upper wall.
- this upper sliding shutter has a concavity directed away from the mixing chamber.
- this shutter can be flat.
- the device comprises a drive member for the upper sliding shutter, arranged to move it between the open and closed positions.
- this drive member comprises a toothed wheel actuable in particular by an electric motor actuator.
- the upper sliding shutter comprises a rack along the longitudinal edge, in particular two racks each along a longitudinal edge, and the toothed wheel of the drive member cooperates with the shutter rack to move this upper sliding shutter.
- each rack comprises a strip of grooves.
- the drive member comprises two toothed wheels connected by a connecting rod which forms a common axis of rotation of the wheels, and each toothed wheel cooperates with a rack of the upper sliding shutter.
- the housing comprises sliding grooves arranged to receive the longitudinal edges of the upper sliding shutter and guide the shutter during sliding movements.
- these grooves generally have an arcuate shape.
- these grooves serve as a rail for the shutter.
- the movement of the upper sliding shutter takes place substantially along an arc-shaped trajectory with a center turned to I.
- the drive member in particular the toothed wheel(s), is arranged on the side of the upper sliding shutter, opposite the mixing chamber.
- toothed wheel(s) are outside the mixing chamber, which makes it possible to avoid obstructing the air flow in the mixing chamber, which makes it possible to improve the performance of the device.
- the drive member in particular the toothed wheel(s), is housed in a cylindrical housing formed by the upper wall.
- the drive member of this upper sliding shutter is arranged along a structural beam of the vehicle, in particular a structural beam of the dashboard.
- the mixing chamber communicates with a second upper air outlet formed on the upper wall, in particular configured to direct the air flow towards a defrosting nozzle of a windshield of the vehicle.
- this second upper air outlet comprises a flap, in particular a pivoting flap, arranged to regulate the air flow which passes through this second air outlet.
- the first and second upper air outlets are arranged on the same side of the upper sliding shutter, in particular on the same side of the associated drive member, unlike an arrangement in which the first and second upper air outlets would be arranged on either side of the sliding shutter or the drive member.
- the first and second upper air outlets are arranged relative to each other so that the upper sliding shutter approaches the second air outlet when this shutter moves to the closed position of the first air outlet.
- the first and second upper air outlets have, at least for some of them, a rectangular section.
- the mixing chamber thus communicates with, on the one hand, the distribution channel which in particular directs the air towards an air nozzle for feet, and, on the other hand, with the first and second upper air outlets.
- the distribution channel which in particular directs the air towards an air nozzle for feet, on the one hand, and the first and second upper air outlets, on the other hand , are arranged on either side of the upper sliding shutter.
- the trajectories of the mixing flap and the upper sliding shutter are substantially parallel.
- the device comprises a plurality of heat exchangers housed in the housing.
- heat exchangers there are in particular at least one evaporator and one condenser.
- the invention also relates, independently or in combination with the above, to a heating, ventilation and/or air conditioning device for a vehicle, comprising in a housing of this device:
- the mixing chamber arranged downstream of the cold air channel and the hot air channel so that a flow of cold air coming from the cold air channel and a flow of hot air coming from the channel hot air can mix in this mixing chamber
- the mixing chamber comprising a lower wall and an upper wall opposite the lower wall, the lower wall being provided with a mixing opening between, on the one hand, the channels of cold and hot air and, on the other hand, the mixing chamber, this mixing opening comprising a passage section for the cold air channel and a passage section for the hot air channel, - at least one sliding shutter arranged to control a flow of air which circulates in this mixing chamber,
- a drive member for the sliding shutter comprising in particular a toothed wheel, this drive member being arranged on the side of the sliding shutter, opposite the mixing chamber.
- this sliding shutter drive member is outside the mixing chamber, which avoids hindering the air flows inside this mixing chamber.
- the invention thus makes it possible to improve the performance of the heating, ventilation and/or air conditioning device.
- the mixing chamber communicates with at least one first upper air outlet formed on the upper wall, and the sliding shutter is an upper sliding shutter arranged to open or close this outlet. air.
- this first air outlet is arranged to communicate with a side or central ventilation nozzle thus making it possible to cool/heat a passenger of the vehicle.
- this upper sliding shutter has two parallel longitudinal edges and the shutter is arranged to be able to slide between the open and closed positions of this first upper air outlet.
- this upper sliding shutter has a curvature whose center of curvature is towards the upper wall of the mixing chamber.
- this shutter can be flat.
- the drive member comprises a toothed wheel actuable in particular by an electric motor actuator.
- the upper sliding shutter comprises a rack along a longitudinal edge, in particular two racks each along a longitudinal edge, and each toothed wheel of the drive member cooperates with the shutter rack to move this upper sliding shutter.
- each rack comprises a strip of grooves.
- the drive member comprises two toothed wheels connected by a connecting rod which forms a common axis of rotation of the wheels, and each toothed wheel cooperates with a rack of the upper sliding shutter.
- the housing comprises sliding grooves arranged to receive the longitudinal edges of the upper sliding shutter and guide the shutter during sliding movements.
- these grooves generally have an arcuate shape.
- these grooves serve as a rail for the shutter.
- the movement of the upper sliding shutter takes place substantially along an arcuate trajectory with a center facing away from the mixing chamber, in other words towards the outside of the housing.
- the drive member in particular the toothed wheel(s), is housed in a cylindrical housing formed by the upper wall.
- the drive member of this upper sliding shutter is arranged along a structural beam of the vehicle, in particular a structural beam of the dashboard.
- the invention also relates, independently or in combination with the above, to a heating, ventilation and/or air conditioning device for a vehicle, comprising in a housing of this device:
- the mixing chamber comprising a lower wall and an upper wall opposite the lower wall, the lower wall being provided with a mixing opening between, on the one hand, the channels of cold air and hot and, on the other hand, the mixing chamber, this mixing opening comprising a passage section for the cold air channel and a passage section for the hot air channel,
- this shutter comprising a main face which has a curvature whose center of curvature is directed towards the upper wall of the mixing chamber.
- the mixing chamber communicates with at least one first upper air outlet formed on the upper wall, and the sliding shutter is an upper sliding shutter arranged to open or close this outlet. air.
- this first air outlet is arranged to communicate with a side or central ventilation nozzle thus making it possible to cool/heat a passenger of the vehicle.
- this upper sliding shutter has two parallel longitudinal edges and the shutter is arranged to be able to slide between the open and closed positions of this first upper air outlet.
- the device comprises a drive member for the sliding shutter, comprising in particular a toothed wheel, this drive member being arranged on the side of the sliding shutter, opposite the mixing chamber.
- the upper sliding shutter comprises a rack along a longitudinal edge, in particular two racks each along a longitudinal edge, and each toothed wheel of the drive member cooperates with the shutter rack to move this upper sliding shutter.
- the device further comprises a mobile mixing flap arranged to control the flow of cold air and the flow of hot air entering the mixing chamber, this mixing flap being mobile between a first end position blocking the cold air passage section of the mixing opening preventing the flow of cold air from the cold air channel from circulating towards the mixing chamber, and a second end position blocking the hot air passage section of the mixing opening preventing the hot air flow from the hot air channel to flow to the mixing chamber.
- the movable mixing flap comprises a main face which has a curvature whose center of curvature is directed towards the upper wall of the mixing chamber.
- the trajectories of the mixing flap and the upper sliding shutter are substantially parallel.
- the trajectories of the mixing flap and the upper sliding shutter are curved.
- the invention also relates, independently or in combination with the above, to a heating, ventilation and/or air conditioning device for a vehicle, comprising in a housing of this device:
- the mixing chamber arranged downstream of the cold air channel and the hot air channel so that a flow of cold air coming from the cold air channel and a flow of hot air coming from the channel hot air can mix in this mixing chamber
- the mixing chamber comprising a lower wall and an upper wall opposite the lower wall, the lower wall being provided with a mixing opening between, on the one hand, the channels of cold and hot air and, on the other hand, the mixing chamber, this mixing opening comprising a passage section for the cold air channel and a passage section for the hot air channel
- the chamber mixing valve communicates with at least one first upper air outlet formed on the upper wall, and an upper sliding shutter is arranged to open or close this air outlet, this first air outlet being arranged in particular to communicate with a nozzle side or central ventilation thus making it possible to cool/heat a passenger of the vehicle, in which the mixing chamber communicates with a second upper air outlet formed on the upper wall, in particular configured to direct the air flow towards a nozzle of defrosting a vehicle windshield, and in which the first and second upper upper air
- the first and second upper air outlets are arranged relative to each other so that the upper sliding shutter approaches the second air outlet when this shutter moves to the closed position of the first air outlet.
- the first and second upper air outlets have, at least for some of them, a rectangular section.
- the mixing chamber thus communicates with, on the one hand, the distribution channel which in particular directs the air towards an air nozzle for feet, and, on the other hand, with the first and second upper air outlets.
- the distribution channel which in particular directs the air towards an air nozzle for feet, on the one hand, and the first and second upper air outlets, on the other hand , are arranged on either side of the upper sliding shutter.
- the upper sliding shutter has two parallel longitudinal edges and the shutter is arranged to be able to slide between the open and closed positions of this first upper air outlet.
- this upper sliding shutter has a curvature whose center of curvature is directed towards the upper wall.
- the device comprises a drive member for the upper sliding shutter, arranged to move it between the open and closed positions, this drive member comprising a toothed wheel actuable in particular by an actuator with electric motor.
- the upper sliding shutter comprises a rack along the longitudinal edge, in particular two racks each along a longitudinal edge, and the toothed wheel of the drive member cooperates with the shutter rack to move this upper sliding shutter.
- the second upper air outlet comprises a flap, in particular a pivoting flap, arranged to regulate the air flow which passes through this second air outlet.
- FIG. 1 illustrates a sectional view of a part of the heating, ventilation and/or air conditioning device according to an exemplary embodiment of the invention
- FIG. 2 illustrates a perspective view of part of the heating, ventilation and/or air conditioning device of Figure 1;
- FIG. 3 illustrates a perspective view of the mixing flap and the associated drive member of the heating, ventilation and/or air conditioning device of Figure 1;
- FIG. 4 illustrates a perspective view of the upper shutter and the associated drive member of the heating, ventilation and/or air conditioning device of Figure 1.
- upstream and downstream refer to the flow of an air flow circulating within the heating, ventilation and/or air conditioning device.
- Figures 1 and 2 show a heating, ventilation and/or air conditioning device 1, comprising a housing 2 which houses heat exchangers.
- an evaporator 4 intended to cool and dehumidify an air flow F1 which passes through it
- a heater 6 intended to heat an air flow F2 which passes through it.
- the heating, ventilation and/or air conditioning device 1 comprises a motor-fan group, not shown, which allows air to be routed to the heat exchangers 4 and 6.
- the device 1 further comprises: a cold air channel 7 in which the air flow F1 can circulate, - a hot air channel 8 in which the air flow F2 can circulate,
- a mixing chamber 9 arranged downstream of the cold air channel 7 and the hot air channel 8 so that a flow of cold air F1 coming from the cold air channel 7 and a flow of hot air F2 coming from the hot air channel 8 can mix in this mixing chamber 9.
- the mixing chamber 9 comprises a lower wall 10 and an upper wall 11 opposite the lower wall 10, the lower wall 10 being provided with a mixing opening 12 between, on the one hand, the cold and hot air channels 7 and 8 and, on the other hand, the mixing chamber 9, this mixing opening 12 comprising a passage section 14 for the cold air channel 7 and a passage section 15 for the hot air channel 8.
- the housing 2 comprises a distribution air channel 16 arranged to bring air from the mixing chamber 9 towards an air nozzle for feet, not shown, opening into a passenger compartment of the vehicle, towards a floor of this vehicle .
- a mobile mixing shutter 20 is also provided, arranged to control the cold air flow F1 and the hot air flow F2 entering the mixing chamber 9.
- This mixing flap 20 is movable between a first end position blocking the cold air passage section 14 of the mixing opening 12 preventing the cold air flow F1 of the cold air channel 7 from circulating towards the mixing chamber. mixing 9, and a second extreme position blocking the hot air passage section 15 of the mixing opening 12 preventing the flow of hot air F2 from the hot air channel 8 from circulating towards the mixing chamber 9.
- This movable flap 20 is arranged to take an intermediate position between these extremal positions, an intermediate position in which this flap 20 defines a bypass channel 21 distinct from the mixing chamber, and allowing cold air to circulate from the mixing channel. cold air 7 towards the hot air channel 8 through this bypass channel 21, as illustrated by arrow F3.
- the mixing flap 20 extends over the lower wall 10 of the mixing chamber 9.
- the device 1 further comprises an air guide 22 arranged to guide air leaving the bypass channel 21 towards the distribution air channel 16, this air guide 22 extending in the mixing chamber 9 between the lower wall 10 and the upper wall 11, and having an extent chosen so as to leave a passage of air from the mixing opening 12 towards the upper wall 11 of mixing chamber 9.
- the air flow F1 which has been cooled by the evaporator 4 is separated from the heater 6 by a partition 25, so that the cold air flow F1 is not heated by the hot air flow, when this does not is not desirable.
- the height is defined as the dimension measured along a height axis Z which passes through the lower 10 and upper 11 walls of the mixing chamber 9. This Z axis corresponds to the vertical when the device 1 is mounted on the vehicle.
- the air guide 22 is thus at an intermediate height between the lower 10 and upper 11 walls of the mixing chamber 9.
- This air guide 22 makes it possible to guide the air flow F3 coming from the bypass channel 21 towards the distribution channel 16, while reducing the temperature stratification in this air flow. In fact, the air guide 22 makes it possible to reduce the height of the air flow, and to separate this air flow from the volume on the other side of the air guide 22.
- the air guide 22 has a height which varies between the bypass channel 21 and the distribution channel 16.
- this air guide 22 is closer to the lower wall 10 of the mixing chamber 9 than to the upper wall 11, at one end facing the bypass channel 21, and this air guide 22 is more close to the upper wall 11 of the mixing chamber 9 than to the lower wall 10, at one end facing the distribution channel 16.
- the air guide 22 has a curved profile with an inflection point, as can be seen in Figure 1.
- the air guide 22 comprises, at its end facing the bypass channel 21, a portion 27 substantially parallel to the lower wall 10 of the mixing chamber 9.
- the air guide 22 comprises, at its end facing the distribution channel, a portion 28 substantially parallel to the upper wall 11 of the mixing chamber 9.
- the air guide 22 has a strip shape with two parallel longitudinal edges 29, and is made of a monolithic piece.
- the air guide 22 has two fixing lugs 30 arranged to allow the fixing of this air guide on a side wall 31 of the mixing chamber 9.
- fixing lugs 30 are perpendicular to the strip of the air guide 22, and are arranged to allow fixing by screw.
- the air guide 22 is made of molding with a portion of the housing 2.
- the distribution channel 16 comprises a distribution flap 32 of the butterfly type, movable around an axis of rotation R1 to control the air flow which enters this distribution channel 16, and the air guide 22 has a width measured parallel to this axis of rotation R1 of the flap 32, which is less than the width of this distribution flap 32.
- the air guide 22 has a width which is less than the width of the mixing flap 20.
- the device 1 comprises two sliding mixing flaps 20, each on one side of the housing 2, and two air guides 22 each associated respectively with one of these mixing flaps 20.
- this sliding mixing flap 20 has two parallel longitudinal edges 34 and the flap 20 is arranged to be able to slide between the extremal positions according to a trajectory which runs along these longitudinal edges 34.
- the sliding shutter 20 comprises, at each longitudinal end, two transverse projections 35 perpendicular to the longitudinal edges 34, and projecting in the direction of the mixing opening 12.
- the transverse projections 35 come to bear on the lower wall 10 when the flap 20 is in the extremal positions.
- the transverse projections 35 face respectively the passage section 14 for the cold air channel and the passage section 15 for the hot air channel so as to form the bypass channel 21 by allowing air to flow from one passage section to the other.
- the housing 2 comprises a partition wall 25 between the cold air channel 7 and the hot air channel 8, and the shutter 20 comprises a main face 37 between the two transverse projections 35, this main face 37 being arranged to define the bypass channel 21 which is between this main face 37 and the partition wall 25.
- this main face 37 is set back from the partition wall 25 to leave sufficient space to form the bypass channel 21.
- the longitudinal edges 34 of this main face 37 are curved.
- This main face 37 of the shutter has a curvature whose center of curvature is directed towards the upper wall 11.
- this main face 37 of the shutter has a concavity directed towards the mixing chamber 9.
- the device 1 comprises a shutter drive member 38, arranged to cooperate with the shutter 20 to move it between the extremal positions.
- the drive member 38 comprises two toothed wheels 39 connected by a connecting rod 40 which forms a common axis of rotation R2 of the wheels, and each toothed wheel 39 cooperates with a rack 42 of the shutter 20.
- the shutter 20 comprises two racks 42 each along a longitudinal edge 34, and the toothed wheel 39 of the drive member 38 cooperates with the rack 42 of the shutter to move this shutter 20.
- Each rack 42 includes a strip of grooves 43.
- each flap 20 is associated with two toothed wheels 39 which rotate simultaneously.
- the housing 2 comprises sliding grooves 44, or sliding grooves, arranged to receive the longitudinal edges 34 of the shutter and guide the flap 20 during sliding movements between the extremal positions.
- These grooves 44 generally have an arcuate shape, and serve as a rail for the shutter 20.
- the movement between the extremal positions of the flap 20 takes place substantially along an arcuate trajectory with a center turned towards the mixing chamber 9.
- the drive member 38 including the toothed wheels 39 is arranged on the side of the mixing flap 20 facing the mixing chamber 9.
- the air guide 22 extends substantially from the toothed wheel 39 to the distribution flap 32 of the distribution channel 16.
- the mixing chamber 9 communicates with first upper air outlets 47 formed on the upper wall 11, and an upper sliding shutter 48 is arranged to open or close these air outlets 47.
- These first air outlets 47 are arranged to communicate with a side or central ventilation nozzle, thus making it possible to cool/heat a passenger of the vehicle.
- the upper sliding shutter 48 is of the sliding door type.
- This upper sliding shutter 48 has two parallel longitudinal edges 49 and the shutter 48 is arranged to be able to slide between the open and closed positions of these first upper air outlets 47.
- This upper sliding shutter 48 has a curvature whose center of curvature is directed towards the upper wall 11.
- this flap 48 comprises a main face 68 which has a curvature whose center of curvature is directed towards the upper wall 11 of the mixing chamber 9.
- this upper sliding shutter 48 has a concavity directed opposite the mixing chamber 9.
- the device 1 comprises a drive member 50 of the upper sliding shutter 48, arranged to move it between the open and closed positions.
- This drive member 50 comprises two toothed wheels 51 connected by a connecting rod 52 which forms a common axis of rotation of the wheels, and each toothed wheel cooperates with a rack 53 of the upper sliding shutter.
- the upper sliding shutter 48 comprises two racks 53 each along a longitudinal edge 49, and the toothed wheel 51 of the drive member cooperates with the rack 53 of the shutter to move this upper sliding shutter 48.
- Each rack 53 includes a strip of grooves 54.
- the housing 2 includes sliding grooves 55 arranged to receive the longitudinal edges 49 of the upper sliding shutter and guide the shutter during sliding movements.
- These grooves 55 generally have an arcuate shape, and serve as a rail for the shutter 48.
- the movement of the upper sliding shutter 48 takes place substantially along an arcuate trajectory with a center facing away from the mixing chamber 9, in other words towards the outside of the housing 2.
- the drive member 50 including the toothed wheels 51 is arranged on the side of the upper sliding shutter 48, opposite the mixing chamber 9.
- toothed wheels 51 are outside the mixing chamber 9, which makes it possible not to obstruct the air flows in the mixing chamber 9, which makes it possible to improve the performance of the device 1.
- the drive member 50 including the toothed wheels 51 is housed in a cylindrical housing 56 formed by the upper wall 11.
- the drive member 50 of this upper sliding shutter 48 is arranged along a structural beam of the vehicle, in particular a structural beam of the dashboard, not shown.
- the mixing chamber 9 communicates with a second upper air outlet 60 formed on the upper wall 11 and configured to direct the air flow towards a defrosting nozzle of a windshield of the vehicle.
- This second upper air outlet 60 comprises a pivoting flap 61 arranged to regulate the air flow which passes through this second air outlet 60.
- the first and second upper air outlets 47 and 60 are arranged on the same side of the upper sliding shutter 48, and on the same side of the associated drive member 50, unlike an arrangement in which the first and second upper air outlets 47 and 60 would be arranged on either side of the sliding shutter 48.
- the first and second upper air outlets 47 and 60 are arranged relative to each other so that the upper sliding shutter 48 approaches the second air outlet 60 when this shutter 48 moves towards the position closed from the first air outlet.
- the first and second upper air outlets 47 and 60 have, at least for some of them, a rectangular section.
- the mixing chamber 9 thus communicates with, on the one hand, the distribution channel 16 which in particular directs the air towards an air nozzle for feet, and, on the other hand, with the first and second air outlets upper 47 and 60.
- the distribution channel 16 which in particular directs the air towards an air nozzle for feet, on the one hand, and the first and second upper air outlets 47 and 60, on the other hand, are arranged on either side other of the upper sliding shutter 48.
- the trajectories of the mixing flap 20 and the upper sliding shutter 48 are substantially parallel.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23720881.4A EP4511244A1 (fr) | 2022-04-20 | 2023-04-20 | Dispositif de chauffage, ventilation et/ou climatisation pour véhicule automobile |
| KR1020247033882A KR20240163114A (ko) | 2022-04-20 | 2023-04-20 | 자동차용 난방, 환기 및/또는 공조 장치 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2203614 | 2022-04-20 | ||
| FR2203614A FR3134754B1 (fr) | 2022-04-20 | 2022-04-20 | Dispositif de chauffage, ventilation et/ou climatisation pour véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023203149A1 true WO2023203149A1 (fr) | 2023-10-26 |
Family
ID=81927854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/060328 Ceased WO2023203149A1 (fr) | 2022-04-20 | 2023-04-20 | Dispositif de chauffage, ventilation et/ou climatisation pour véhicule automobile |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4511244A1 (fr) |
| KR (1) | KR20240163114A (fr) |
| FR (1) | FR3134754B1 (fr) |
| WO (1) | WO2023203149A1 (fr) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0911196A2 (fr) * | 1997-09-29 | 1999-04-28 | Calsonic Corporation | Unité de chauffage, de ventilation et/ou de conditionnement d'air des véhicules automobiles |
| US20140087646A1 (en) * | 2012-09-21 | 2014-03-27 | Keihin Corporation | Vehicular air conditioning apparatus |
| DE102014002419A1 (de) * | 2013-02-26 | 2014-08-28 | Keihin Corporation | Fahrzeugklimaanlage |
| FR3100311A1 (fr) | 2019-08-28 | 2021-03-05 | Valeo Systemes Thermiques | Dispositif de chauffage, ventilation et/ou climatisation pour véhicule automobile |
-
2022
- 2022-04-20 FR FR2203614A patent/FR3134754B1/fr active Active
-
2023
- 2023-04-20 WO PCT/EP2023/060328 patent/WO2023203149A1/fr not_active Ceased
- 2023-04-20 EP EP23720881.4A patent/EP4511244A1/fr active Pending
- 2023-04-20 KR KR1020247033882A patent/KR20240163114A/ko active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0911196A2 (fr) * | 1997-09-29 | 1999-04-28 | Calsonic Corporation | Unité de chauffage, de ventilation et/ou de conditionnement d'air des véhicules automobiles |
| US20140087646A1 (en) * | 2012-09-21 | 2014-03-27 | Keihin Corporation | Vehicular air conditioning apparatus |
| DE102014002419A1 (de) * | 2013-02-26 | 2014-08-28 | Keihin Corporation | Fahrzeugklimaanlage |
| FR3100311A1 (fr) | 2019-08-28 | 2021-03-05 | Valeo Systemes Thermiques | Dispositif de chauffage, ventilation et/ou climatisation pour véhicule automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3134754B1 (fr) | 2024-05-10 |
| FR3134754A1 (fr) | 2023-10-27 |
| EP4511244A1 (fr) | 2025-02-26 |
| KR20240163114A (ko) | 2024-11-18 |
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