EP3046785A1 - Air conditioning device for a motor vehicle incorporating lateral air mixing means - Google Patents

Air conditioning device for a motor vehicle incorporating lateral air mixing means

Info

Publication number
EP3046785A1
EP3046785A1 EP14761343.4A EP14761343A EP3046785A1 EP 3046785 A1 EP3046785 A1 EP 3046785A1 EP 14761343 A EP14761343 A EP 14761343A EP 3046785 A1 EP3046785 A1 EP 3046785A1
Authority
EP
European Patent Office
Prior art keywords
radiator
air
extension
mixing
evaporator
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.)
Withdrawn
Application number
EP14761343.4A
Other languages
German (de)
French (fr)
Inventor
Didier Loup
Amanda Martinell
Fabrice Ailloud
Philippe Vincent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP3046785A1 publication Critical patent/EP3046785A1/en
Withdrawn legal-status Critical Current

Links

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 [HVAC] 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 [HVAC] 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
    • 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 [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H2001/00185—Distribution of conditionned air
    • B60H2001/00192—Distribution of conditionned air to left and right part of passenger compartment

Definitions

  • the invention relates to a motor vehicle air conditioning device comprising means for heating, ventilating and cooling the air of the passenger compartment, in particular to regulate the temperature in the passenger compartment and demist its windows.
  • Such a device is generally located between the front seats and the dashboard of the vehicle that it equips. It comprises a casing delimiting an internal enclosure having several air inlets and several air outlets, this enclosure enclosing an evaporator for cooling the air and a radiator for heating it.
  • Various shutter systems and other adjustable shutters are also provided for adjusting the air flow rates in the evaporator, in the radiator and in the air inlets and outlets, so as to regulate the temperature of the treated air.
  • Such a device is advantageously of the double-air flow type: an air flow said to be greater between and exits through inlets and outlets located in an upper portion of the enclosure, and a so-called lower airflow between and out by inputs and outputs located in a lower portion of the enclosure.
  • Two separate blower systems force the flow of upper and lower flows independently, so that the upper flow passes through the upper portion of the evaporator and radiator, and the lower flow passes through the lower portions of these elements.
  • the upper flow makes it possible, for example, to regulate the temperature in the upper portion of the passenger compartment and to demist the front windows of the vehicle, while the lower flow makes it possible, for example, to regulate the temperature in the lower portion of the passenger compartment.
  • the enclosure has a central inner wall oriented vertically which divides into two symmetrical parts relative to this wall.
  • the upper flow has a left portion and a right portion for regulating the temperature respectively of the left and right portions of the upper portion of the passenger compartment.
  • the lower stream is mounted in a main pipe wider than this radiator, so that air can pass through the radiator and / or bypass laterally.
  • Two flaps are mounted on either side of the radiator to regulate, in the left part and in the right part, the flow of air bypassing the radiator.
  • Each shutter is movable between a position in which it covers a half of the radiator and an opposite position in which it closes the side portion of the main pipe to prohibit the passage of air.
  • This arrangement thus makes it possible to regulate the temperature independently in the left part and in the right part of the air flow, but its bulk is important because it requires a main pipe significantly wider than the radiator over the entire length of the air. 'pregnant.
  • the object of the invention is to propose a solution to remedy this drawback.
  • the subject of the invention is a device for conditioning the air of a motor vehicle, comprising a chamber enclosing an evaporator and a radiator, the radiator being located downstream of the evaporator and being separated therefrom by a intermediate region, this chamber being arranged so that a flow of air admitted by an inlet of the enclosure successively passes through the evaporator and the radiator while splitting to form a left air flow and a flow of air right discharged by a left air outlet and a straight air outlet, wherein the enclosure comprises: - a left extension for collecting air in the intermediate region and deliver it in a downstream mixing zone downstream radiator and upstream of the left air outlet by opening into this mixing zone parallel to the downstream face of the radiator;
  • a straight extension for collecting air in the intermediate region and delivering it to a straight mixing zone situated downstream of the radiator and upstream of the straight air outlet and opening into this mixing zone parallel to the downstream face this radiator;
  • a left mixing flap located in the left mixing zone to adjust the proportion of air from the left extension and air passed through the radiator in the mixture discharged by the left air outlet;
  • An upright mixing flap located in the right mixing zone to adjust the proportion of air from the straight extension and air having passed through the radiator in the mixture discharged by the right outlet.
  • each mixing flap can dose the proportions of hot and cold air being movable for less than a quarter turn, which limits the size of the device according to the invention which is capable of producing different air mixtures for the left stream and the right stream.
  • each mixing flap has a generally rectangular contour wall shape being rotatably mounted on an axis coinciding with one of the edges of the rectangular contour, each mixing flap being movable between a position in which it is folded against the radiator and a position in which it is folded against a mouth of the extension associated with the mixing flap.
  • the invention also relates to a device thus defined, wherein each extension bypasses an edge of the radiator, and wherein the axis of rotation of each mixing flap runs along a radiator edge bypassed by an extension.
  • Figure 1 is a sectional side view of the left side of the air conditioning device according to the invention.
  • Figure 2 is a sectional top view of the air conditioning device according to the invention.
  • the idea behind the invention is to provide two pipes bypassing the radiator opening out parallel to its rear face so that the mixing zones of hot air and cold air comprising the mixing flaps are located directly behind the radiator in order to reduce the bulk of the assembly.
  • the conditioning device according to the invention which is represented in the figures by being marked with 1, comprises a casing 2 delimiting an internal enclosure which encloses an evaporator 3 for cooling the air and a radiator 4 for reheating it.
  • This casing 2 comprises in its lower region a common lower air inlet 6 located upstream of the evaporator 3, and a lower left air outlet 7 located downstream of the radiator 4 and a lower right air outlet .
  • the air of the lower flow is thus admitted through the inlet 6 before being split and successively passing through a lower portion of the evaporator 3 and a lower portion of the radiator 4 to be discharged by the lower left and right outlets.
  • the flow of the lower flow is forced by a ventilation system not visible in the figures.
  • the flow of the upper flow is in turn forced by a ventilation which feeds a common upper inlet 9.
  • This upper flow is then split to pass successively an upper portion of the evaporator 3 and the radiator 4, before arriving in a cavity high case marked by 1 1.
  • the radiator 4 and the evaporator 3 are both parallelepipedic, and they extend approximately vertically in front of each other when the device is in place, the radiator being the element which is the most forward in relation to the direction of travel of the vehicle.
  • the upper and lower air flows follow horizontal trajectories as they pass through these elements.
  • the upper cavity 1 1 corresponds to the upper region of the inner enclosure delimited by the casing 2: it extends above the assembly formed by the radiator 4 and the evaporator 3 through which the lower flow circulates and the upper flow.
  • the chamber 2 delimits firstly a lower and upper flow circulation duct which extends from the inlets 6, 9 while closing the evaporator 3 and the radiator 4, and on the other hand the high cavity 1 1 which is located above this sheath and which communicates with this sheath at a region downstream of the radiator 4.
  • the sheath and the upper cavity are each divided into a left part and a right part by a central wall of the chamber 2, to split the lower stream and the upper stream.
  • This central wall appears in Figure 4 where it is marked by 15.
  • the upper cavity 1 1 has three upper left outputs 12, 13, 14 and three upper right outputs symmetrical to each other with respect to the central wall.
  • the air of the upper left flow introduced into the left part of the upper cavity 1 1 is thus discharged by the upper left outlets 12, 13, 14.
  • the lower left outlet 7 corresponds to the region of the feet of the rear passenger left from the passenger compartment
  • the upper left outlet 12 corresponds to another ventilation of the left rear part of the passenger compartment.
  • the upper left outlets 13 and 14 respectively correspond to a front left ventilation and defogging windows located in the front left part of the passenger compartment.
  • the lower portion of the chamber 2 comprises a left lateral extension 17 and a right lateral extension 18, both of which circumvent the lower portion of the radiator 4, respectively from the left and the right.
  • the left lateral extension takes a portion of the left air flow at the intermediate region 16 to discharge it at a left mixing zone 19 which is located on the left side of the lower portion of the downstream region of the radiator 4 and upstream of the lower left outlet 7.
  • the right lateral extension 18 takes a portion of the right air flow in the intermediate region 16 to discharge it at a right mixing zone 21 situated in the right part of the lower portion of the downstream region of the radiator 4 and upstream of the bottom right outlet marked 10 in FIG.
  • a left mixing flap 22 is placed in the left mixing zone 19 to adjust the proportions of hot and cold air constituting the left lower flow discharged by the lower left outlet 7.
  • This flap has a general rectangular wall shape, and it is pivotally mounted about an axis coinciding with one of its edges which thus constitutes a fixed edge of this flap.
  • the axis of rotation of the flap 22 runs along the left vertical edge of the radiator, so that this flap can occupy a position folded against the radiator to open the lateral extension 17 as much as possible, which corresponds to a situation in which the lower left flow comprises only cold air taken at the outlet of the evaporator 3.
  • this flap 22 can occupy a folded position against the opening by which the lateral extension 17 opens into the mixing zone 19, so as to close the intake of cold air while completely uncovering the left part radiator, which corresponds to a situation in which the lower flow comprises only hot air.
  • the right mixing flap, indicated by 23 is the symmetrical left mixing flap 19 relative to the central partition wall of the chamber 2, which appears in Figure 2 by being identified by 15.
  • the left extension 17 and the straight extension 18 open out one and the other into the mixing zones 19 and 21 while being oriented parallel to the downstream face of the radiator 4, in order to limit the deflection of the flaps 22 and 23 to about less than a quarter turn.
  • the two extreme positions that can be occupied by the left flap 22 are spaced from each other angularly by a value less than a quarter turn around the axis of rotation of each mixing flap.
  • the left flap 22 is folded against the left side of the downstream face of the radiator, so that the left flow discharged by the lower left outlet 7 comprises only cold air from the lateral extension 17 and which is protected from heating by the radiator with the flap folded against it.
  • the right mixing flap 23 is in turn folded against the opening of the lateral extension 18 to close it while completely uncovering the right part of the rear face of the radiator 4, so that the flow discharged by the bottom right outlet 10 comprises only the air heated by the radiator 4.
  • Each of the two mixing flaps 22, 23 may occupy any intermediate position between its folded position against the radiator and its folded position against the opening of the lateral extension against which it is mounted, which allows to produce a lower left and right flow having two different temperatures which are adjustable independently of one another by simple adjustment of these two mixing flaps.
  • the device according to the invention makes it possible to produce a mixture of hot and cold air at the level of the lower left flow and at the level of the lower right flow while remaining very compact, particularly because the mixing flaps are located directly downstream of the radiator in a configuration by which they do not project laterally with respect to the radiator.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention relates to a motor vehicle air conditioning device (1) comprising a chamber (2) containing an evaporator (3) and a radiator (4) separated from the evaporator (3) by an intermediate region (16) so that a stream of air passes through the evaporator (3) and the radiator (4), splitting to constitute a left and a right stream of air which are delivered by a left and a right air outlet, in which device the chamber (2) comprises: two, left and right, lateral extensions (17, 18) for channelling air from the intermediate region (16) as far as two, left and right, mixing zones (19, 21) situated downstream of the radiator (4) and upstream of the left and right outlets (7, 10); two, left and right, distribution flaps (17, 18) situated in the left and right mixing zones (19, 21) in order to adjust, within each mixing zone, the proportion of air coming from the extension and of air that has passed through the radiator.

Description

Dispositif de conditionnement d'air pour véhicule automobile intégrant des moyens de mélange d'air latéraux  Air conditioning device for a motor vehicle incorporating lateral air mixing means
L'invention concerne un dispositif de conditionnement d'air de véhicule automobile comportant des moyens pour chauffer, ventiler et rafraîchir l'air de l'habitacle, afin notamment de réguler la température dans l'habitacle et de désembuer ses vitres. The invention relates to a motor vehicle air conditioning device comprising means for heating, ventilating and cooling the air of the passenger compartment, in particular to regulate the temperature in the passenger compartment and demist its windows.
ARRIERE PLAN DE L'INVENTION BACKGROUND OF THE INVENTION
Un tel dispositif est généralement implanté entre les sièges avant et le tableau de bord du véhicule qu'il équipe. Il comporte un carter délimitant une enceinte interne ayant plusieurs entrées d'air et plusieurs sorties d'air, cette enceinte renfermant un évaporateur pour refroidir l'air et un radiateur pour le réchauffer. Such a device is generally located between the front seats and the dashboard of the vehicle that it equips. It comprises a casing delimiting an internal enclosure having several air inlets and several air outlets, this enclosure enclosing an evaporator for cooling the air and a radiator for heating it.
Différents systèmes de volets et autres obturateurs ajustables sont également prévus pour régler les débits d'air dans l'évaporateur, dans le radiateur et dans les entrées et sorties d'air, de manière à réguler la température de l'air traité. Un tel dispositif est avantageusement du type à double flux d'air : un flux d'air dit supérieur entre et sort par des entrées et sorties situées dans une portion supérieure de l'enceinte, et un flux d'air dit inférieur entre et sort par des entrées et sorties situées dans une portion inférieure de l'enceinte. Various shutter systems and other adjustable shutters are also provided for adjusting the air flow rates in the evaporator, in the radiator and in the air inlets and outlets, so as to regulate the temperature of the treated air. Such a device is advantageously of the double-air flow type: an air flow said to be greater between and exits through inlets and outlets located in an upper portion of the enclosure, and a so-called lower airflow between and out by inputs and outputs located in a lower portion of the enclosure.
Deux systèmes de soufflerie distincts forcent la circulation des flux supérieur et inférieur de manière indépendante, pour que le flux supérieur traverse la portion supérieure de l'évaporateur et du radiateur, et pour que le flux inférieur traverse les portions inférieures de ces éléments. Two separate blower systems force the flow of upper and lower flows independently, so that the upper flow passes through the upper portion of the evaporator and radiator, and the lower flow passes through the lower portions of these elements.
Le flux supérieur permet par exemple de réguler la température dans la portion supérieure de l'habitacle et de désembuer les vitres avant du véhicule, alors que le flux inférieur permet par exemple de réguler la température dans la portion inférieure de l'habitacle. The upper flow makes it possible, for example, to regulate the temperature in the upper portion of the passenger compartment and to demist the front windows of the vehicle, while the lower flow makes it possible, for example, to regulate the temperature in the lower portion of the passenger compartment.
Les flux sont dédoublés latéralement : l'enceinte comporte une paroi interne centrale orientée verticalement qui la partage en deux parties symétriques par rapport à cette paroi. Le flux supérieur comporte une partie gauche et une partie droite pour réguler la température respectivement des parties gauche et droite de la portion supérieure de l'habitacle. Il en va de même du flux inférieur. Dans une solution divulguée par le modèle d'utilité DE29504860U1 , le radiateur est monté dans une conduite principale plus large que ce radiateur, pour que l'air puisse passer à travers le radiateur et/ou le contourner latéralement. Deux volets sont montés de part et d'autre du radiateur pour réguler, en partie gauche et en partie droite, le débit d'air contournant le radiateur. The flows are split laterally: the enclosure has a central inner wall oriented vertically which divides into two symmetrical parts relative to this wall. The upper flow has a left portion and a right portion for regulating the temperature respectively of the left and right portions of the upper portion of the passenger compartment. The same is true of the lower stream. In a solution disclosed by the utility model DE29504860U1, the radiator is mounted in a main pipe wider than this radiator, so that air can pass through the radiator and / or bypass laterally. Two flaps are mounted on either side of the radiator to regulate, in the left part and in the right part, the flow of air bypassing the radiator.
Chaque volet est mobile entre une position dans laquelle il couvre une moitié du radiateur et une position opposée dans laquelle il ferme la partie latérale de la conduite principale pour y interdire le passage d'air. Each shutter is movable between a position in which it covers a half of the radiator and an opposite position in which it closes the side portion of the main pipe to prohibit the passage of air.
Cet agencement permet ainsi de réguler la température indépendamment en partie gauche et en partie droite du flux d'air, mais son encombrement s'avère important du fait qu'il nécessite une conduite principale significativement plus large que le radiateur sur toute la longueur de l'enceinte. This arrangement thus makes it possible to regulate the temperature independently in the left part and in the right part of the air flow, but its bulk is important because it requires a main pipe significantly wider than the radiator over the entire length of the air. 'pregnant.
OBJET DE L'INVENTION OBJECT OF THE INVENTION
Le but de l'invention est de proposer une solution pour remédier à cet inconvénient. The object of the invention is to propose a solution to remedy this drawback.
RESUME DE L'INVENTION SUMMARY OF THE INVENTION
A cet effet, l'invention a pour objet un dispositif de conditionnement d'air de véhicule automobile, comportant une enceinte renfermant un évaporateur et un radiateur, le radiateur étant situé en aval de l'évaporateur et étant séparé de celui-ci par une région intermédiaire, cette enceinte étant agencée pour qu'un flux d'air admis par une entrée de l'enceinte traverse successivement l'évaporateur et le radiateur tout en se dédoublant afin de constituer un flux d'air gauche et un flux d'air droit refoulés par une sortie d'air gauche et une sortie d'air droite, dans lequel l'enceinte comporte : - une extension gauche pour collecter de l'air dans la région intermédiaire et le délivrer dans une zone de mélange gauche située en aval du radiateur et en amont de la sortie d'air gauche en débouchant dans cette zone de mélange parallèlement à la face aval de ce radiateur ; For this purpose, the subject of the invention is a device for conditioning the air of a motor vehicle, comprising a chamber enclosing an evaporator and a radiator, the radiator being located downstream of the evaporator and being separated therefrom by a intermediate region, this chamber being arranged so that a flow of air admitted by an inlet of the enclosure successively passes through the evaporator and the radiator while splitting to form a left air flow and a flow of air right discharged by a left air outlet and a straight air outlet, wherein the enclosure comprises: - a left extension for collecting air in the intermediate region and deliver it in a downstream mixing zone downstream radiator and upstream of the left air outlet by opening into this mixing zone parallel to the downstream face of the radiator;
- une extension droite pour collecter de l'air dans la région intermédiaire et le délivrer dans une zone de mélange droite située en aval du radiateur et en amont de la sortie d'air droite et débouchant dans cette zone de mélange parallèlement à la face aval de ce radiateur ; - un volet de mélange gauche situé dans la zone de mélange gauche pour ajuster la proportion d'air issu de l'extension gauche et d'air ayant traversé le radiateur dans le mélange refoulé par la sortie d'air gauche ; a straight extension for collecting air in the intermediate region and delivering it to a straight mixing zone situated downstream of the radiator and upstream of the straight air outlet and opening into this mixing zone parallel to the downstream face this radiator; - A left mixing flap located in the left mixing zone to adjust the proportion of air from the left extension and air passed through the radiator in the mixture discharged by the left air outlet;
- un volet de mélange droit situé dans la zone de mélange droite pour ajuster la proportion d'air issu de l'extension droite et d'air ayant traversé le radiateur dans le mélange refoulé par la sortie droite. - An upright mixing flap located in the right mixing zone to adjust the proportion of air from the straight extension and air having passed through the radiator in the mixture discharged by the right outlet.
Grâce aux extensions qui débouchent parallèlement à la face aval du radiateur, chaque volet de mélange peut doser les proportions d'air chaud et froid en étant mobile sur moins d'un quart de tour, ce qui permet de limiter l'encombrement du dispositif selon l'invention qui est capable de réaliser des mélanges d'air différents pour le flux gauche et le flux droit. Thanks to the extensions that open parallel to the downstream face of the radiator, each mixing flap can dose the proportions of hot and cold air being movable for less than a quarter turn, which limits the size of the device according to the invention which is capable of producing different air mixtures for the left stream and the right stream.
L'invention concerne également un dispositif ainsi défini, dans lequel chaque volet de mélange a une forme de paroi à contour généralement rectangulaire en étant monté rotatif sur un axe coïncidant avec l'un des bords du contour rectangulaire, chaque volet de mélange étant mobile entre une position dans laquelle il est rabattu contre le radiateur et une position dans laquelle il est rabattu contre une embouchure de l'extension associée à ce volet de mélange. The invention also relates to a device thus defined, wherein each mixing flap has a generally rectangular contour wall shape being rotatably mounted on an axis coinciding with one of the edges of the rectangular contour, each mixing flap being movable between a position in which it is folded against the radiator and a position in which it is folded against a mouth of the extension associated with the mixing flap.
L'invention concerne également un dispositif ainsi défini, dans lequel chaque extension contourne un bord du radiateur, et dans lequel l'axe de rotation de chaque volet de mélange longe un bord radiateur contourné par une extension. The invention also relates to a device thus defined, wherein each extension bypasses an edge of the radiator, and wherein the axis of rotation of each mixing flap runs along a radiator edge bypassed by an extension.
BREVE DESCRIPTION DES FIGURES BRIEF DESCRIPTION OF THE FIGURES
La figure 1 est une vue latérale en coupe de la partie gauche du dispositif de conditionnement d'air selon l'invention ; Figure 1 is a sectional side view of the left side of the air conditioning device according to the invention;
La figure 2 est une vue de dessus en coupe du dispositif de conditionnement d'air selon l'invention. Figure 2 is a sectional top view of the air conditioning device according to the invention.
DESCRIPTION DETAILLEE DE L'INVENTION DETAILED DESCRIPTION OF THE INVENTION
L'idée à la base de l'invention est de prévoir deux canalisations contournant le radiateur en débouchant parallèlement à sa face arrière pour que les zones de mélange d'air chaud et d'air froid comportant les volets mélangeurs soient situées directement derrière le radiateur afin de réduire l'encombrement de l'ensemble. Le dispositif de conditionnement selon l'invention qui est représenté dans les figures en y étant repéré par 1 comporte un carter 2 délimitant une enceinte interne qui renferme un évaporateur 3 pour rafraîchir l'air et un radiateur 4 pour le réchauffer. The idea behind the invention is to provide two pipes bypassing the radiator opening out parallel to its rear face so that the mixing zones of hot air and cold air comprising the mixing flaps are located directly behind the radiator in order to reduce the bulk of the assembly. The conditioning device according to the invention, which is represented in the figures by being marked with 1, comprises a casing 2 delimiting an internal enclosure which encloses an evaporator 3 for cooling the air and a radiator 4 for reheating it.
Ce carter 2 comporte dans sa région inférieure une entrée d'air inférieure commune 6 située en amont de l'évaporateur 3, et une sortie d'air inférieure gauche 7 située en aval du radiateur 4 ainsi qu'une sortie d'air inférieure droite. L'air du flux inférieur est ainsi admis par l'entrée 6 avant d'être dédoublé et de traverser successivement une portion inférieure de l'évaporateur 3 et une portion inférieure du radiateur 4 pour être refoulé par les sorties inférieures gauche et droite. La circulation du flux inférieur est forcée par un système de ventilation non visible dans les figures. This casing 2 comprises in its lower region a common lower air inlet 6 located upstream of the evaporator 3, and a lower left air outlet 7 located downstream of the radiator 4 and a lower right air outlet . The air of the lower flow is thus admitted through the inlet 6 before being split and successively passing through a lower portion of the evaporator 3 and a lower portion of the radiator 4 to be discharged by the lower left and right outlets. The flow of the lower flow is forced by a ventilation system not visible in the figures.
La circulation du flux supérieur est quant à elle forcée par une ventilation qui alimente une entrée supérieure commune 9. Ce flux supérieur est ensuite dédoublé pour traverser successivement une portion supérieure de l'évaporateur 3 et du radiateur 4, avant d'arriver dans une cavité haute du carter repérée par 1 1 . Le radiateur 4 ainsi que l'évaporateur 3 sont l'un et l'autre parallélépipédiques, et ils s'étendent à peu près verticalement l'un devant l'autre lorsque le dispositif est en place, le radiateur étant l'élément qui est le plus en avant par rapport au sens d'avancement du véhicule. Les flux d'air supérieur et inférieur suivent des trajectoires horizontales lorsqu'ils traversent ces éléments. La cavité haute 1 1 correspond à la région haute de l'enceinte interne que délimite le carter 2 : elle s'étend au-dessus de l'ensemble formé par le radiateur 4 et l'évaporateur 3 à travers lesquels circulent le flux inférieur et le flux supérieur. The flow of the upper flow is in turn forced by a ventilation which feeds a common upper inlet 9. This upper flow is then split to pass successively an upper portion of the evaporator 3 and the radiator 4, before arriving in a cavity high case marked by 1 1. The radiator 4 and the evaporator 3 are both parallelepipedic, and they extend approximately vertically in front of each other when the device is in place, the radiator being the element which is the most forward in relation to the direction of travel of the vehicle. The upper and lower air flows follow horizontal trajectories as they pass through these elements. The upper cavity 1 1 corresponds to the upper region of the inner enclosure delimited by the casing 2: it extends above the assembly formed by the radiator 4 and the evaporator 3 through which the lower flow circulates and the upper flow.
L'enceinte 2 délimite d'une part une gaine de circulation des flux inférieur et supérieur qui s'étend depuis les entrées 6, 9 tout en refermant l'évaporateur 3 et le radiateur 4, et d'autre part la cavité haute 1 1 qui est située au-dessus de cette gaine et qui communique avec cette gaine au niveau d'une région située en aval du radiateur 4. The chamber 2 delimits firstly a lower and upper flow circulation duct which extends from the inlets 6, 9 while closing the evaporator 3 and the radiator 4, and on the other hand the high cavity 1 1 which is located above this sheath and which communicates with this sheath at a region downstream of the radiator 4.
La gaine et la cavité haute sont partagées chacune en une partie gauche et une partie droite par une paroi centrale de l'enceinte 2, pour dédoubler le flux inférieur et le flux supérieur. Cette paroi centrale apparaît dans la figure 4 où elle est repérée par 15. The sheath and the upper cavity are each divided into a left part and a right part by a central wall of the chamber 2, to split the lower stream and the upper stream. This central wall appears in Figure 4 where it is marked by 15.
La cavité haute 1 1 comporte trois sorties supérieures gauches 12, 13, 14 et trois sorties supérieures droites symétriques les unes des autres par rapport à la paroi centrale. L'air du flux supérieur gauche introduit dans la partie gauche de la cavité haute 1 1 est ainsi refoulé par les sorties supérieures gauche 12, 13, 14. En pratique, la sortie inférieure gauche 7 correspond à la région des pieds du passager arrière gauche de l'habitacle, la sortie supérieure gauche 12 correspond à une autre aération de la partie arrière gauche de l'habitacle. Les sorties supérieures gauche 13 et 14 correspondent respectivement à une aération avant gauche et au désembuage des vitrages situés en partie avant gauche de l'habitacle. The upper cavity 1 1 has three upper left outputs 12, 13, 14 and three upper right outputs symmetrical to each other with respect to the central wall. The air of the upper left flow introduced into the left part of the upper cavity 1 1 is thus discharged by the upper left outlets 12, 13, 14. In practice, the lower left outlet 7 corresponds to the region of the feet of the rear passenger left from the passenger compartment, the upper left outlet 12 corresponds to another ventilation of the left rear part of the passenger compartment. The upper left outlets 13 and 14 respectively correspond to a front left ventilation and defogging windows located in the front left part of the passenger compartment.
Selon l'invention, la portion inférieure de l'enceinte 2 comporte une extension latérale gauche 17 et une extension latérale droite 18, qui contournent toutes deux la portion inférieure du radiateur 4, respectivement par la gauche et par la droite. According to the invention, the lower portion of the chamber 2 comprises a left lateral extension 17 and a right lateral extension 18, both of which circumvent the lower portion of the radiator 4, respectively from the left and the right.
L'extension latérale gauche prélève une portion du flux d'air gauche au niveau de la région intermédiaire 16 pour le refouler au niveau d'une zone de mélange gauche 19 qui est située en partie gauche de la portion inférieure de la région aval du radiateur 4 et en amont de la sortie inférieure gauche 7. The left lateral extension takes a portion of the left air flow at the intermediate region 16 to discharge it at a left mixing zone 19 which is located on the left side of the lower portion of the downstream region of the radiator 4 and upstream of the lower left outlet 7.
De manière analogue, l'extension latérale droite 18 prélève une portion du flux d'air droit dans la région intermédiaire 16 pour le refouler au niveau d'une zone de mélange droite 21 située en partie droite de la portion inférieure de la région aval du radiateur 4 et en amont de la sortie inférieure droite repérée par 10 dans la figure 2. Similarly, the right lateral extension 18 takes a portion of the right air flow in the intermediate region 16 to discharge it at a right mixing zone 21 situated in the right part of the lower portion of the downstream region of the radiator 4 and upstream of the bottom right outlet marked 10 in FIG.
Un volet de mélange gauche 22 est placé dans la zone de mélange gauche 19 pour ajuster les proportions d'air chaud et froid constituant le flux inférieur gauche refoulé par la sortie inférieure gauche 7. Ce volet a une forme générale de paroi rectangulaire, et il est monté pivotant autour d'un axe coïncidant avec l'un de ses bords qui constitue ainsi un bord fixe de ce volet. A left mixing flap 22 is placed in the left mixing zone 19 to adjust the proportions of hot and cold air constituting the left lower flow discharged by the lower left outlet 7. This flap has a general rectangular wall shape, and it is pivotally mounted about an axis coinciding with one of its edges which thus constitutes a fixed edge of this flap.
Comme visible dans les figures 1 et 2, l'axe de rotation du volet 22 longe l'arête verticale gauche du radiateur, de sorte ce volet peut occuper une position rabattue contre le radiateur pour ouvrir au maximum l'extension latérale 17, ce qui correspond à une situation dans laquelle le flux inférieur gauche comporte uniquement de l'air froid prélevé en sortie de l'évaporateur 3. As can be seen in FIGS. 1 and 2, the axis of rotation of the flap 22 runs along the left vertical edge of the radiator, so that this flap can occupy a position folded against the radiator to open the lateral extension 17 as much as possible, which corresponds to a situation in which the lower left flow comprises only cold air taken at the outlet of the evaporator 3.
A l'opposé, ce volet 22 peut occuper une position rabattue contre l'ouverture par laquelle l'extension latérale 17 débouche dans la zone de mélange 19, de manière à fermer l'admission d'air froid tout en découvrant complètement la partie gauche du radiateur, ce qui correspond à une situation dans laquelle le flux inférieur comporte uniquement de l'air chaud. Le volet droit de mélange, repéré par 23 est le symétrique du volet de mélange gauche 19 par rapport à la cloison de séparation centrale de l'enceinte 2, qui apparaît dans la figure 2 en y étant repérée par 15. In contrast, this flap 22 can occupy a folded position against the opening by which the lateral extension 17 opens into the mixing zone 19, so as to close the intake of cold air while completely uncovering the left part radiator, which corresponds to a situation in which the lower flow comprises only hot air. The right mixing flap, indicated by 23 is the symmetrical left mixing flap 19 relative to the central partition wall of the chamber 2, which appears in Figure 2 by being identified by 15.
Comme visible dans les figures, l'extension gauche 17 et l'extension droite 18 débouchent l'une et l'autre dans les zones de mélange 19 et 21 en étant orientées parallèlement à la face aval du radiateur 4, pour limiter le débattement des volets 22 et 23 à environ moins d'un quart de tour. Ainsi, les deux positions extrêmes pouvant être occupées par le volet gauche 22 sont espacées l'une de l'autre angulairement d'une valeur inférieure à un quart de tour autour de l'axe de rotation de chaque volet de mélange. As can be seen in the figures, the left extension 17 and the straight extension 18 open out one and the other into the mixing zones 19 and 21 while being oriented parallel to the downstream face of the radiator 4, in order to limit the deflection of the flaps 22 and 23 to about less than a quarter turn. Thus, the two extreme positions that can be occupied by the left flap 22 are spaced from each other angularly by a value less than a quarter turn around the axis of rotation of each mixing flap.
Dans la configuration que montre la figure 2, le volet gauche 22 est rabattu contre la partie gauche de la face aval du radiateur, de sorte que le flux gauche refoulé par la sortie inférieure gauche 7 comporte uniquement de l'air froid issu de l'extension latérale 17 et qui est protégé d'un réchauffement par le radiateur grâce au volet rabattu contre ce dernier. Le volet de mélange droit 23 est quant à lui rabattu contre l'ouverture de l'extension latérale 18 pour la fermer tout en découvrant complètement la partie droite de la face arrière du radiateur 4, de sorte que le flux refoulé par la sortie inférieure droite 10 comporte uniquement de l'air réchauffé par le radiateur 4. Chacun des deux volets de mélange 22, 23 peut occuper toute position intermédiaire entre sa position rabattue contre le radiateur et sa position rabattue contre l'ouverture de l'extension latérale contre laquelle il est monté, ce qui permet de produire un flux inférieur gauche et droit ayant deux températures différentes qui sont ajustables indépendamment l'une de l'autre par simple ajustement de ces deux volets de mélange. In the configuration shown in Figure 2, the left flap 22 is folded against the left side of the downstream face of the radiator, so that the left flow discharged by the lower left outlet 7 comprises only cold air from the lateral extension 17 and which is protected from heating by the radiator with the flap folded against it. The right mixing flap 23 is in turn folded against the opening of the lateral extension 18 to close it while completely uncovering the right part of the rear face of the radiator 4, so that the flow discharged by the bottom right outlet 10 comprises only the air heated by the radiator 4. Each of the two mixing flaps 22, 23 may occupy any intermediate position between its folded position against the radiator and its folded position against the opening of the lateral extension against which it is mounted, which allows to produce a lower left and right flow having two different temperatures which are adjustable independently of one another by simple adjustment of these two mixing flaps.
Comme visible dans les figures, le dispositif selon l'invention permet de réaliser un mélange d'air chaud et froid au niveau du flux inférieur gauche et au niveau du flux inférieur droit tout en restant très compact, du fait notamment que les volets de mélange sont situés directement en aval du radiateur selon une configuration par laquelle ils ne débordent pas latéralement par rapport au radiateur. As can be seen in the figures, the device according to the invention makes it possible to produce a mixture of hot and cold air at the level of the lower left flow and at the level of the lower right flow while remaining very compact, particularly because the mixing flaps are located directly downstream of the radiator in a configuration by which they do not project laterally with respect to the radiator.

Claims

REVENDICATIONS
1 . Dispositif (1 ) de conditionnement d'air de véhicule automobile, comportant une enceinte (2) renfermant un évaporateur (3) et un radiateur (4), le radiateur (4) étant situé en aval de l'évaporateur (3) et étant séparé de celui-ci par une région intermédiaire (16), cette enceinte étant agencée pour qu'un flux d'air admis par une entrée (6, 9) de l'enceinte (2) traverse successivement l'évaporateur (3) et le radiateur (4) tout en se dédoublant afin de constituer un flux d'air gauche et un flux d'air droit refoulés par une sortie d'air gauche (7, 12, 13, 14) et une sortie d'air droite, dans lequel l'enceinte (2) comporte : - une extension gauche (17) pour collecter de l'air dans la région intermédiaire (16) et le délivrer dans une zone de mélange gauche (19) située en aval du radiateur (4) et en amont de la sortie d'air gauche (7) en débouchant dans cette zone de mélange parallèlement a la face aval de ce radiateur (4) ; 1. Device (1) for air conditioning of a motor vehicle, comprising an enclosure (2) enclosing an evaporator (3) and a radiator (4), the radiator (4) being located downstream of the evaporator (3) and being separated from the latter by an intermediate region (16), this chamber being arranged so that an air flow admitted by an inlet (6, 9) of the enclosure (2) passes successively through the evaporator (3) and the radiator (4) while splitting to form a left air flow and a straight air flow discharged by a left air outlet (7, 12, 13, 14) and a straight air outlet, in which the enclosure (2) comprises: - a left extension (17) for collecting air in the intermediate region (16) and delivering it into a left mixing zone (19) situated downstream of the radiator (4) and upstream of the left air outlet (7) opening into this mixing zone parallel to the downstream face of this radiator (4);
- une extension droite (18) pour collecter de l'air dans la région intermédiaire (16) et le délivrer dans une zone de mélange droite (21 ) située en aval du radiateura straight extension (18) for collecting air in the intermediate region (16) and delivering it to a right mixing zone (21) situated downstream of the radiator
(4) et en amont de la sortie d'air droite (10) et débouchant dans cette zone de mélange parallèlement à la face aval de ce radiateur (4) ; (4) and upstream of the right air outlet (10) and opening into this mixing zone parallel to the downstream face of this radiator (4);
- un volet de mélange gauche (22) situé dans la zone de mélange gauche (19) pour ajuster la proportion d'air issu de l'extension gauche (17) et d'air ayant traversé le radiateur (4) dans le mélange refoulé par la sortie d'air gauche (7) ; - a left mixing flap (22) located in the left mixing zone (19) for adjusting the proportion of air coming from the left extension (17) and air having passed through the radiator (4) in the forced mixture by the left air outlet (7);
- un volet de mélange droit (23) situé dans la zone de mélange droite (21 ) pour ajuster la proportion d'air issu de l'extension droite (18) et d'air ayant traversé le radiateur (4) dans le mélange refoulé par la sortie droite (10). a right mixing flap (23) located in the right mixing zone (21) for adjusting the proportion of air coming from the straight extension (18) and air having passed through the radiator (4) in the forced mixture by the right exit (10).
2. Dispositif (1 ) selon la revendication 1 , dans lequel chaque volet de mélange (22, 23) a une forme de paroi à contour généralement rectangulaire en étant monté rotatif sur un axe coïncidant avec l'un des bords du contour rectangulaire, chaque volet de mélange (22, 23) étant mobile entre une position dans laquelle il est rabattu contre le radiateur (4) et une position dans laquelle il est rabattu contre une embouchure de l'extension (17, 18) associée à ce volet de mélange (22, 23). 2. Device (1) according to claim 1, wherein each mixing flap (22, 23) has a generally rectangular contour wall shape being rotatably mounted on an axis coinciding with one of the edges of the rectangular contour, each mixing flap (22, 23) being movable between a position in which it is folded against the radiator (4) and a position in which it is folded against a mouth of the extension (17, 18) associated with this mixing flap (22, 23).
3. Dispositif selon la revendication 2, dans lequel chaque extension (17, 18) contourne un bord du radiateur (4), et dans lequel l'axe de rotation de chaque volet de mélange (22, 23) longe un bord de radiateur (4) contourné par une extension. 3. Device according to claim 2, wherein each extension (17, 18) bypasses an edge of the radiator (4), and wherein the axis of rotation of each mixing flap (22, 23) runs along a radiator edge ( 4) bypassed by an extension.
EP14761343.4A 2013-09-19 2014-09-05 Air conditioning device for a motor vehicle incorporating lateral air mixing means Withdrawn EP3046785A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1358995A FR3010659B1 (en) 2013-09-19 2013-09-19 AIR CONDITIONING DEVICE FOR MOTOR VEHICLE INCORPORATING LATERAL AIR MIXING MEANS
PCT/EP2014/068905 WO2015039886A1 (en) 2013-09-19 2014-09-05 Air conditioning device for a motor vehicle incorporating lateral air mixing means

Publications (1)

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EP3046785A1 true EP3046785A1 (en) 2016-07-27

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ID=49911650

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EP14761343.4A Withdrawn EP3046785A1 (en) 2013-09-19 2014-09-05 Air conditioning device for a motor vehicle incorporating lateral air mixing means

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Country Link
EP (1) EP3046785A1 (en)
FR (1) FR3010659B1 (en)
WO (1) WO2015039886A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4422120C2 (en) * 1994-06-24 1996-08-29 Daimler Benz Ag Heating or air conditioning for a motor vehicle
FR2754491B1 (en) * 1996-10-11 1998-12-24 Valeo Climatisation VEHICLE HEATING AND AIR CONDITIONING DEVICE WITH SEPARATE ADJUSTMENT OF THE RIGHT AND LEFT SIDES OF THE COCKPIT
DE19919132A1 (en) * 1999-04-27 2000-11-02 Valeo Klimasysteme Gmbh Vehicle ventilation system has heat exchanger in fresh air duct and associated on output side with device forming two or more separate or insulated ducts each leading to a mixing chamber
DE10012975C1 (en) * 2000-03-16 2001-03-08 Daimler Chrysler Ag Heating or air-conditioning device for automobile passenger compartment has air opening for one air channel supplying passenger compartment controlled in dependence on setting of warm and cold air mixing device
KR20070064936A (en) * 2005-12-19 2007-06-22 한라공조주식회사 Independent type air conditioner for vehicles

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
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See also references of WO2015039886A1 *

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FR3010659A1 (en) 2015-03-20
WO2015039886A1 (en) 2015-03-26

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