FR3070320B1 - COOLING UNIT FOR A MOTOR VEHICLE - Google Patents

Abstract

The invention relates to a cooling unit (1) for a vehicle comprising a housing in which is housed at least one heat exchanger (4), this housing being configured to be traversed by a flow of air and comprising at least a first wall peripheral (30) and a second peripheral wall arranged transversely to the air flow and at a distance from one another, the first peripheral wall (30) comprising at least one air inlet regulating device in the housing arranged in a first zone of the first peripheral wall (30), characterized in that the cooling unit (1) comprises an air deflection device (10), said air deflection device (10) comprising at least one at least one inlet (9) formed in a second zone of the first peripheral wall (30) separate from the first air intake regulator carrying zone, and an air deflection member.

Description

The present invention relates to the field of cooling systems incorporated in vehicles, and more particularly to the field of cooling systems arranged on the front of such vehicles.

The normal operation of a motor vehicle requires the intake and capture of a large amount of air, for example for the air supply of the engine or one of its elements such as the turbocharger, or for cooling a component of the engine or the passenger compartment of the vehicle.

This large amount of air is captured by the front of the vehicle. Part of the air flow thus captured is passed through a cooling system, also called "cooling unit", arranged between the front face of the vehicle and the vehicle engine, before being admitted into the engine to allow the fuel combustion or be used for cooling an element of this engine for example. This cooling unit may comprise in particular heat exchangers forming part of a thermal air conditioning loop of the passenger compartment.

In order to optimize the efficiency of such cooling units, the heat exchangers can be encapsulated, that is to say housed in a housing configured to guide the outside air through these heat exchangers and thus to limit the losses of heat. 'air. A fan may also be provided to force the air supply for example when the vehicle is stopped.

On certain vehicles, a front wall of this housing, that is to say the first wall of this housing to be traversed by the outside air, is equipped with an air intake control device comprising shutters. movable set in this front wall so as to be disposed respectively facing an air passage opening, the movable flaps being controlled to allow opening or closing the corresponding air passage to the inside of the housing. Conventionally, these movable flaps are controlled by an actuator, for example electrical.

When the movable flaps are set in the open position, the air can circulate through these passages, and for example participate in the cooling of the engine of the motor vehicle.

When the movable flaps are in the closed position, they obstruct the passage openings in the housing and the air does not penetrate inside the housing. This is advantageous for reducing the drag coefficient and thus to reduce fuel consumption and CO2 emission, but this poses a problem because the air can not enter the housing housing the heat exchangers and therefore that the air intake for combustion and therefore the operation of this engine is not properly ensured.

The present invention is in this context and aims to overcome this disadvantage by providing a cooling unit configured to allow an appropriate supply of air to the engine or any other room with a need for air for operation or cooling, while ensuring optimum performance of the encapsulated heat exchangers.

An object of the present invention thus relates to a vehicle cooling unit comprising a housing in which is housed at least one heat exchanger, this housing being configured to be traversed by an air flow and comprising at least a first peripheral wall and a second peripheral wall arranged transversely to the air flow and at a distance from one another, the first peripheral wall comprising at least one air inlet regulating device in the housing arranged in a first zone of the first peripheral wall. According to the invention, the cooling unit comprises an air deflection device, this air deflection device comprising at least one inlet orifice formed in a second zone of the first peripheral wall distinct from the first carrier zone. the air supply regulating device, and an air deflection member.

The first peripheral wall and the second peripheral wall are arranged one after the other along a longitudinal direction, this longitudinal direction being the direction along which the airflow moves. More particularly, the longitudinal direction is perpendicular to the first peripheral wall and the second peripheral wall.

It is understood that, according to the invention, the air deflection device allows air to enter the vehicle even when the at least one air supply regulator is closed, for example to join a motor compartment upstream of which is mounted the cooling unit according to the present invention, the term "upstream" to be understood relative to the direction of flow of the air flow.

Thus, the air deflection device allows a continuous external air supply, to elements arranged downstream of the cooling unit relative to the flow direction of the air flow, for example to a combustion engine.

According to the invention, the air deflection device is configured to guide the flow of air so that it bypasses the at least one heat exchanger.

In other words, the air deflection device makes it possible to prevent the air from passing through the at least one heat exchanger of the cooling unit. Thus, the air flow is directly supplied to the elements requiring a continuous supply of air, without passing through this at least one heat exchanger.

According to an exemplary embodiment of the present invention, the air deflection member of the air deflection device extends at least partly above the at least one heat exchanger disposed in the housing.

The term "above" should be understood in relation to an orientation of the cooling unit in the vehicle to which it is integrated. Advantageously, this air deflection member thus makes it possible to pass the outside air captured by the front face of the vehicle above the at least one heat exchanger so that it rejoins directly the engine - for example - without this outside air does not cross the heat exchanger (s) arranged in the housing.

According to one aspect of the present invention, the housing further comprises a cross member connecting an end edge of the first peripheral wall to an end edge of the second peripheral wall, at least a portion of the deflection member of air of the air deflection device being formed in this cross.

Advantageously, this cross member forms an upper peripheral wall of the housing of the cooling unit, thereby connecting an upper vertical end edge of the first peripheral wall to an upper vertical end edge of the second peripheral wall. As previously, the terms "vertical" and "upper" refer to the orientation of the cooling unit when mounted in the vehicle, these terms not being therefore limiting to the orientation that this unit can take. cooling.

According to a feature of the present invention, the air deflection device comprises an outlet orifice formed in a wall of the cross member.

It is understood that the air flow is thus able to enter the air deflection device by the first peripheral wall carrying the inlet orifice of this air deflection device and that it is adapted to exit through a wall of the carrier beam from its outlet.

According to a first exemplary embodiment, the outlet orifice is formed in a free wall of the cross member, this free wall being the wall of the crosspiece arranged farthest from the first peripheral wall. In other words, this free wall is the wall of the crosspiece disposed closest to the element (s) of the engine compartment to supply air.

According to a second embodiment of the present invention, the outlet orifice of the air supply regulating device is formed in the cross member in the vertical extension of one of the heat exchangers housed in the housing. In other words, the outlet orifice is then formed in the upper wall of the housing of the cooling unit, this upper wall being formed by a wall of the crossbar separate from its free wall.

According to a feature of the present invention, the air deflection member is formed by a solid conduit comprising an inlet mouth at which is secured a channel carrying the inlet port of the air deflection device. and an outlet mouth secured to a frame in which is formed the outlet orifice of this air deflection device. The channel and the solid conduit participating in forming the air deflection member may be two separate parts secured to one another or form a single single piece assembly. The term "monobloc assembly" means that the channel and the conduit can not be separated without causing the deterioration of one or the other.

Optionally, the solid conduit forming a portion of the air deflection member can be bent. In other words, the inlet orifice of the air deflection device has an offset with respect to its outlet orifice, this offset being transverse or vertical. In other words, this offset is in a plane at least perpendicular to the longitudinal direction as defined above.

Advantageously, a transverse offset between the inlet orifice and the outlet orifice of the air deflection device makes it possible to provide this inlet orifice in the first peripheral wall of the housing of the cooling unit, while at the same time having the outlet to the nearest of the elements requiring the supply of continuous air.

According to the invention, the duct forming part of the air deflection member may be sealed.

According to a feature of the present invention, the air supply regulating device, formed in the first peripheral wall, comprises a plurality of movable flaps, the inlet orifice of the air deflection device being provided at the place one of the moving shutters.

For example, the air supply regulating device provided in the first peripheral wall may comprise a movable flap matrix arrangement, the inlet orifice of the air deflection device forming part of this matrix arrangement, the place of one of the moving shutters.

According to one aspect of the present invention, the air deflection member and / or the cross member connecting the first peripheral wall to the second peripheral wall of the housing may be made of a composite material.

Advantageously, the air deflection member may be made integral with the cross member, that is to say that this air deflection member is manufactured independently of the cross member and then is fixed to this cross member, for example by screwing .

According to an alternative embodiment of the present invention, at least a portion of the air deflection member is integral with the cross member.

In other words, according to this embodiment, at least a portion of the air deflection member and the cross member form a one-piece assembly, that is to say that these elements can not be separated without causing the deterioration of the part of the air deflection member concerned or of the cross member.

The present invention also relates to a motor vehicle comprising at least one cooling unit according to the present invention.

For example, this cooling unit may be arranged upstream of an engine compartment of this vehicle, the air deflection device then enabling said engine located downstream of the cooling unit to be supplied with air, the terms " upstream "and" downstream "to be heard with respect to the direction of flow of air through it. Other characteristics, details and advantages will emerge more clearly on reading the detailed description given below for information purposes, in relation to the various embodiments illustrated in the following figures: FIG. 1 is a side view of the front of a vehicle equipped with a cooling unit according to the invention, in which it has been made visible the cooling unit arranged upstream of an engine compartment, this cooling unit comprising a housing in which is accommodated at least one heat exchanger; FIG 2 is a perspective view of the cooling unit according to a first embodiment of the present invention in a longitudinal and vertical section making in particular visible the elements housed in this cooling unit; FIG 3 is a perspective view of the cooling unit of Figure 2 shown in a longitudinal and vertical section, the cutting plane is offset transversely to the section plane of Figure 2, to make visible a air deflection device provided in this cooling unit; FIG. 4 is a perspective view of the air deflection device of the cooling unit of FIG. 3; FIG. 5 is a schematic representation of a section of the cooling unit according to a second embodiment of the present invention.

Figure 1 illustrates the front of a vehicle comprising a cooling unit 1 and a motor compartment 2, arranged successively in this order along a longitudinal direction X in which the vehicle moves. It is understood that a flow of air FA enters the vehicle in this longitudinal direction X, in a direction opposite to the direction of movement of the vehicle, as shown in Figure 1. Thus, the airflow FA which enters the vehicle the vehicle first passes through the cooling unit 1 before reaching the engine compartment 2.

This cooling unit 1 comprises a housing 3 in which is housed at least one heat exchanger 4 · As shown diagrammatically in FIG. 1, this housing 3 comprises a first peripheral wall 30 and a second peripheral wall 3b arranged transversely to the flow of heat. FA air and at a distance from each other. It will be understood that this first peripheral wall 30 and this second peripheral wall 31 are in substantially parallel planes.

The first peripheral wall 30 of the housing 3 is a front wall, that is to say disposed furthest forward with respect to the direction of movement of the vehicle while the second peripheral wall 31 is a rear wall of this housing 3. in other words, the air flow FA entering the vehicle first passes through the first peripheral wall 30, called the "front wall", then, in a second step, the second peripheral wall 3b, called the "rear wall" before to reach the engine compartment 2. This first peripheral wall 30 and the second peripheral wall 31 are interconnected by at least four other peripheral walls intended to contain and guide the flow of air FA entering the housing 3 · In this way, the heat exchanger or heat exchangers are encapsulated in the housing between these walls.

Among these four other peripheral walls, there are two side walls - not shown in this figure -, an upper peripheral wall 32 and a lower peripheral wall 33 · As shown, the upper peripheral wall 32 connects an upper vertical end edge 5 from the first peripheral wall 30 to an upper vertical end edge 6 of the second peripheral wall 31 while the lower wall 33 connects a lower vertical end edge 50 of the first peripheral wall 30 to a lower vertical end edge 60 of the second peripheral wall 31 ·

As has been previously stated, the terms "lower" and "higher" refer to an orientation of the cooling unit 1 as illustrated in FIG. 1 and in an example of application on a given vehicle, but that these names are not limiting of the orientation that can take this cooling unit 1.

The first peripheral wall 30 of the housing 3 of the cooling unit 1 comprises an air inlet regulator 7 in the vehicle configured to allow or prevent the entry of the air flow FA into the cooling unit. 1. This air inlet control device 7 comprises movable flaps 70 and an actuator 71 configured to control the position of these movable flaps 70. Each movable flap 70 is arranged to cover an opening formed through the first peripheral wall 30 and configured to allow the entry of the air flow FA in the housing 3 of the cooling unit 1. It is understood that the orientation of these movable flaps 70 determines the amount of air that can enter the cooling unit, this orientation being managed according to the needs of the vehicle. Schematically, these movable flaps 70 can take an open position allowing the flow of air FA to enter the vehicle or a closed position preventing the entry of this flow of air into the vehicle, it being understood that intermediate positions of these flaps mobile 70 are also conceivable.

To reduce the drag coefficient of the vehicle and thus reduce fuel consumption, it is understood that these movable flaps 70 are closed as often as possible.

However, some parts of the vehicle require a continuous supply of air. This is for example the case of a combustion engine for which it is necessary to maintain an air inlet to ensure combustion. For this purpose, the cooling unit 1 according to the present invention advantageously comprises an air deflection device, not shown in Figure 1, which allows a continuous supply of air and which will be described below.

We will now describe in more detail the cooling unit 1 according to the invention, with reference to FIGS. 2 to 4

Figure 2 is a perspective view in longitudinal and vertical section, that is to say made in a plane perpendicular to the first peripheral wall 30 and the upper peripheral wall 32. As previously mentioned, this cooling unit 1 comprises the housing comprising the first peripheral wall 30 in which is provided the air supply regulating device, the second peripheral wall 3b the upper peripheral wall 32 and the lower peripheral wall 33 · As illustrated, the peripheral walls upper 32 and lower 33 connect the first peripheral wall 30 to the second peripheral wall 31 ·

It is understood that these peripheral walls 30, 3b 32, 33 delimit an internal volume of the housing in which are housed several heat exchangers 4 · According to an example shown in Figure 2 the cooling unit 1 comprises two heat exchangers 4 arranged successively along the longitudinal direction X, for example a condenser 40 and a radiator 41 · The radiator 41 allows the cooling of the heat engine via an exchange between the outside air and a coolant circulating in the radiator 41 while the condenser 40 is an element of an air conditioning circuit with an exchange network between incoming fresh air and a refrigerant.

As previously mentioned, the air intake control device carried by the first peripheral wall 30 comprises movable flaps 70 controlled by an actuator 71 and arranged upstream of openings formed in this first peripheral wall 30, the term " upstream "to be heard in relation to the flow direction of the air flow. As can be seen in FIG. 2, the actuator 71 is disposed centrally with respect to the movable flaps 70. In other words, these movable flaps 70 are distributed on either side of this actuator 71 ·

The moving flaps 70, as well as the openings of the first peripheral wall that they cover, are arranged in a matrix network, that is to say that these movable flaps 70 and the openings are regularly distributed along columns. and lines. Note also in this figure 2 that the first peripheral wall 30 has a stall 300 longitudinal, that is to say that this first peripheral wall 30 comprises a lower portion 30 'and an upper portion 30s which extend in two planes parallel and distinct. This stall 300 may for example make it possible to house an additional heat exchanger in the casing of the cooling unit 1. This additional heat exchanger is then arranged facing the lower part 30 'of the first peripheral wall 30.

The second peripheral wall 3b, of which only a lateral portion is visible in FIG. 2, is in contrast to the first peripheral wall 30, relative to the longitudinal direction X. This second peripheral wall 31 may for example comprise a motor-fan unit. , not visible in Figure 2, configured to force the entry of air into the cooling unit 1, for example when the vehicle is stopped.

In the example shown, the upper peripheral wall 32 of the housing 3 is formed by a cross member 320. This includes in particular a first wall 321 for covering the housing which is extended perpendicularly to each of its longitudinal ends by a falling edge coming into bearing respectively against the first peripheral wall 30 and the second peripheral wall 3b these fallen edges ensuring the sealing of the housing at the level of the upper peripheral wall. Among these fallen edges, there is in particular a second wall 322, called "rear wall", which closes the housing in its upper part and at the rear thereof, and which can extend beyond the second peripheral wall 31 of the housing 3> along the longitudinal direction X. It will be understood that the designation "rear" again refers to an orientation of the cooling unit 1 when it is mounted on the vehicle relative to an advancement in front of the vehicle, but that these names are not limiting the orientation that can take this cooling unit 1.

The cross member 320 further comprises two lateral attachment arms 8. It is understood that because of the section shown in Figure 2, only one of these fastening arms 8 is visible in this figure. These attachment arms 8 are configured to allow the joining of the cooling unit 1 in the vehicle for which it is intended.

The cross member 320 forming the upper peripheral wall 32 of the housing may for example be made of a composite material, for example an organic matrix.

As previously mentioned, the cooling unit 1 according to the present invention comprises an air deflection device configured to ensure a continuous air supply of elements positioned downstream of this cooling unit, with respect to the direction of flow of the air. air flow, and requiring this supply of continuous air, as is for example the case of a combustion engine.

Figures 2 and 3 illustrate a first embodiment of the cooling unit 1 according to the present invention comprising such an air deflection device. As illustrated, the air deflection device is provided, at least in part, in the cross member 320 forming the upper peripheral wall 32 of the housing of said cooling unit 1.

In Figure 2 are thus visible only an inlet port 9 and an outlet port 12 of the air deflection device. The air deflection device is configured to be borrowed by the air flow entering the vehicle on which the cooling unit is integrated. Thus, this airflow is able to enter the air deflection device through its inlet orifice 9 and to exit through its outlet orifice 12.

According to the first exemplary embodiment illustrated in this FIG. 2, the inlet orifice 9 of this air deflection device is disposed against one of the openings formed in the first peripheral wall 30 and allowing the entry of the flow of air in the housing of the cooling unit 1, this opening is not equipped with movable flap unlike the openings in the first peripheral wall. More particularly, this inlet orifice 9 is disposed against one of the openings in the upper part 30s of the first peripheral wall 30.

According to the example illustrated in FIG. 2, the inlet orifice 9 of the air deflection device has a transverse dimension equal to or substantially equal to half of a transverse dimension of the opening, these transverse dimensions being measured. parallel to a transverse direction Y perpendicular to the longitudinal direction X and parallel to at least the first peripheral wall 30 and the upper peripheral wall 32. It is understood that the other half of the opening is equipped with a specific movable flap, this last having a transverse dimension smaller than the transverse dimensions of the other movable flaps 70. The end of the air deflection device carrying the inlet port 2 may for this purpose comprise means for supporting the specific movable flap to form a bearing rotation of this component.

According to other embodiments of the present invention, the inlet orifice 9 of the air deflection device may have a transverse dimension substantially equal to the transverse dimension of the opening against which it is arranged. The outlet orifice 12 of the air deflection device is in turn formed in a wall of the cross member. According to the first exemplary embodiment illustrated in Figures 2 and 3> the outlet port 12 of the air deflection device is formed in the second wall 322 of the cross member 320, also called "free wall". This outlet orifice 12 thus opens beyond the second peripheral wall 31 of the housing of the cooling unit 1. Advantageously, this allows the flow of air passing through the cooling unit to come out of it as closely as possible. elements that it is intended to supply or to cool. The inlet orifice 9 is connected to the outlet orifice 12 by an air deflection member formed in the cross member 320. This air deflection member being formed in the crosspiece 320, it is not visible. in Figure 2 but is for example illustrated in Figures 3 and 4 ·

According to the present invention, it is therefore understood that the air deflection device allows outside air to be supplied to elements arranged downstream of the cooling unit 1, without this outside air having to pass through the heat exchanger (s) housed in the housing of this cooling unit 1. In other words, the air deflection device of the cooling unit according to the present invention is configured to allow outside air to bypass the heat exchanger (s) of the cooling unit. According to the first exemplary embodiment illustrated here, the air deflection device is more particularly configured to pass the outside air over this heat exchanger (s).

Advantageously, the supply of outside air thus generated via the air deflection device is continuous and independent of the position of the movable flaps 70. The elements arranged downstream of the cooling unit 1 can thus be supplied with air from the air. continuous way.

The air deflection device according to the present invention can be secured to the cross member 320 in which it is formed by means of a fixing plate 14, for example visible in FIG. 2. This fixing plate 14 has a shape complementary to the first wall 321 of the cross member 320 forming the upper wall 32 of the housing 3 · In the example illustrated, the fixing plate 14 has a convex shape configured to be received in a groove 323 formed in the crosspiece 320. The fixing plate 14 Advantageously comprises two pads 140 arranged projecting from this fixing plate and for creating a flat surface to facilitate the attachment of the air deflection device, for example by screwing.

We will now describe in more detail the air deflection device with reference to Figures 3 and 4.

FIG. 3 is a perspective view of a section of the cooling unit 1, this section being taken along a longitudinal and vertical plane passing through the air deflection device 10. FIG. 4 illustrates the device of air deflection 10 as such.

As described above, this air deflection device 10 comprises an inlet orifice 9 formed in the first peripheral wall 30, and more particularly disposed against one of the openings in this first peripheral wall 30. previously mentioned, this inlet orifice 9 is formed in the upper part 30s of this first peripheral wall 30.

Advantageously, this inlet orifice 9 is disposed against the opening closest to the first wall 321 of the crosspiece 320. In other words, this inlet orifice 9 of the air deflection device is arranged in the vicinity of the edge. upper vertical end 5 of the first peripheral wall 30.

According to the example illustrated in this FIG. 3, the inlet orifice 9 of the air deflection device has a substantially rectangular shape, of a size equivalent to that of the opening in the vicinity of which this orifice is formed. entry 9 ·

As previously mentioned, this inlet port 9 is configured to be borrowed by the air flow entering the vehicle. This flow of air then passes through the air deflection member 11 of the air deflection device 10 before exiting through the outlet orifice described above.

According to the first embodiment illustrated in Figures 3 and 4> the air deflection member 11 comprises at least one solid conduit 110 configured to be borrowed by a portion of the airflow FA. Advantageously, this conduit 110 may be made of the same composite material as the cross member 320, which facilitates the attachment of these elements with each other. The term "solid conduit" means that this conduit has a certain rigidity, preventing its spontaneous deformation.

It will be understood that this duct 110 forms a passage intended to be taken by a part of the air flow passing through the cooling unit 1, this passage passing over the heat exchangers 4 housed in the casing of this cooling unit. The air deflection device thus allows the flow of air to bypass the heat exchangers of the cooling unit from the top, it being understood that it is preferable to position the inlet orifice, always open, the higher possible to prevent possible entry of water into the conduit 110 through this inlet, for example when the vehicle passes fords.

As previously mentioned, FIG. 3 is a representation of the cooling unit seen in a section made at the level of the air deflection device 10. This figure makes visible the inlet orifice 9 of this deflection device air but not the outlet. It is therefore understood from this figure that the duct 110 of the air deflection device 10 according to the invention has a transverse offset. As a result, the inlet port 9 of this air deflection device 10 and the outlet port 10 are not aligned along the longitudinal direction X. This transverse shift will be more fully described with reference to the figure 4 ·

FIG. 4 particularly illustrates the air deflection device 10 thus comprising at least the air deflection member 11, the inlet orifice 9 and the outlet orifice 12.

According to the exemplary embodiment illustrated in FIG. 4, the duct 110 forming the air deflection member 11 comprises an inlet mouth 100 at the level of which is secured a channel 90 in which the orifice is formed. inlet 9 of the air deflection device 10 and an outlet mouth near which is secured a frame 120 carrying the outlet port 12 of the air deflection device 10.

As can be seen, this frame 120 comprises a fixing portion 121 configured to be secured, for example by welding, to the duct 110 forming the air deflection member. This frame 120 further comprises an outlet portion 122 through which the air flow is able to exit the air deflection device 10. The inlet orifice 9 of the air deflection device 10 is extended by the channel 90 secured to the conduit 110 of the air deflection device 10. In other words, the channel 90 comprises a first end through which it opens on the first peripheral wall via the inlet port 9 of the deflection device 10 and a second end through which it opens into the conduit 110 of the air deflection device 10. More specifically, it is understood that the second end of the channel 90 opens into a lower wall of the conduit 110 of the deflection device. 10, at the inlet mouth 100 of this duct 110. With the exception of its inlet orifice 9 and its outlet orifice 12, the duct 110 is closed and thus comprises an upper wall 111, the bottom wall - not visible in this figure 4 - and two side walls 112 connecting the upper wall 111 to the bottom wall. The upper wall 111 of this duct 110 further comprises grooves 113 corresponding to an arrangement of the framework of the cross-piece in which the air deflection device 10 is formed.

The side walls of this duct carry fastening means 13 configured to allow the attachment of this air deflection device 10 to the crossmember. These fastening means 13 are intended to cooperate with the fixing plate 14 described above, with reference to FIG. 2. As previously mentioned, the air deflection device 10 may for example be fastened to the cross member by screwing. .

According to another embodiment not illustrated here, the air deflection device can be secured to the cross member of the housing by welding.

According to yet another embodiment not illustrated here, the air deflection device may be made of material with the cross member of the housing of the cooling unit, this air deflection device and this cross member then forming a monobloc assembly. . The term "monobloc assembly" means that the cross member and the air deflection device form a single assembly that can not be separated without causing the deterioration of one or the other of these elements.

Note also that the duct 110 of the air deflection device 10 has a bent shape which results in the transverse offset between the inlet orifice 9 and the outlet orifice 12 described above. This transverse offset advantageously allows the inlet orifice 9 of the duct 110 to be formed in the first peripheral wall of the housing of the cooling unit while allowing the outlet orifice 12 to be provided in the cross member, as close as possible to the elements. requiring the supply of continuous air.

FIG. 5 schematizes the cooling unit 1 according to a second embodiment of the present invention. As previously described, this cooling unit 1 comprises a housing 3 comprising the first peripheral wall 3θ and the second peripheral wall 31. As previously mentioned, this first peripheral wall 3θ has the stall 3θθ dividing this first peripheral wall 3θ into a part upper 30s and a lower part 30i and for accommodating an additional heat exchanger in the housing 3 ·

According to the example illustrated in this FIG. 5, the cooling unit 1 comprises, as previously, a condenser 40 and a radiator 41. This FIG. 5 makes visible the motor-fan unit 15 carried by the second peripheral wall 31 of the housing. and configured to force the entry of air into the cooling unit 1, for example when the vehicle is stationary. The cooling unit 1 according to the second exemplary embodiment also comprises the air deflection device 10, this air deflection device comprising, as a reminder, an inlet orifice 9> connected to an outlet orifice 12 via an air deflection member 11, in this case made by a conduit 110.

As previously described, this air deflection device is configured to generate a continuous external air supply and to bring this outside air to the elements arranged downstream of the cooling unit, without the latter having to cross the heat exchangers 4θ> 41 housed in the casing 3 of the cooling unit 1.

This second embodiment of the present invention differs from the first embodiment in particular by the position of the outlet orifice 12. Indeed, as shown in FIG. 5, this outlet orifice 12 is formed in the first embodiment. wall 321 of the cross member 320 forming the upper peripheral wall of the housing. In other words, this outlet port 12 is turned towards the hood of the vehicle on which is mounted the cooling unit according to the present invention. The flow of air diverted by this air deflection device can thus subsequently join the aforementioned elements, requiring a continuous supply of air.

It will be understood from the foregoing that the present invention provides a vehicle cooling unit, comprising an air delivery control device having movable flaps configured to allow or prevent the entry of an air stream into the vehicle. cooling unit, and an air deflection device for creating a continuous air supply for elements disposed downstream of this cooling unit, these elements may for example consist of a combustion engine that needs to air to ensure its operation or in batteries that need this air to ensure their cooling. The invention can not, however, be limited to the means and configurations described and illustrated herein, and it also extends to any equivalent means or configurations and any technically operating combination of such means. In particular, the shapes and arrangement of the air deflection device in the cooling unit can be modified without harming the invention to the extent that they fulfill the functionalities described herein.

Claims (10)

1. A cooling unit (1) for a vehicle comprising a housing (3) in which at least one heat exchanger (4) is housed, this housing (3) being configured to be traversed by an air flow (FA) and comprising at least a first peripheral wall (30) and a second peripheral wall (31) arranged transversely to the airflow (FA) and at a distance from each other, the first peripheral wall (30) comprising at least one air intake regulating device (7) in the housing (3) arranged in a first zone of the first peripheral wall (30), characterized in that the cooling unit (1) comprises a deflection device of air (lo), this air deflection device (lo) comprising at least one inlet orifice (9) formed in a second zone of the first peripheral wall (30) distinct from the first bearing zone of the regulating device air intake (7), and an organ of air deflection (11). 2. Cooling unit (1) according to the preceding claim, wherein the air deflection device (lo) is configured to guide the flow of air (FA) so that it bypasses the at least one exchanger heat (4) · 3- cooling unit (l) according to any one of the preceding claims, wherein the air deflection member (il) of the air deflection device (lo) extends at least partly above at least one heat exchanger (4) disposed in the housing (3). 4. Cooling unit (1) according to any one of the preceding claims, wherein the housing (3) further comprises a cross member (320) connecting an end edge (5, 5θ) of the first peripheral wall (30). ) at an end edge (6, 6θ) of the second peripheral wall (31), and wherein at least a portion of the air deflection member (11) of the air deflection device (lo) is formed in this crossbar (320). 5- cooling unit (l) according to the preceding claim, wherein the air deflection device (lo) comprises an outlet port (12) formed in a wall of the cross member (320). 6. cooling unit (1) according to claim 5> wherein the air deflection member OC is formed by a solid conduit (lio) comprising an inlet mouth (100) at which is secured a channel (90) carrying the inlet (9) of the air deflection device (lo) and an outlet mouth secured to a frame (120) in which is formed the outlet orifice (12) of this device of air deflection (10) · Cooling unit (1) according to one of the preceding claims, wherein the air supply regulating device (7) in the first peripheral wall (30) comprises a plurality of movable flaps (70). and wherein the inlet (9) of the air deflector (10) is provided in place of one of the movable flaps (70). 8. Cooling unit (1) according to any one of the preceding claims, wherein the air supply regulating device (7) carried by the first peripheral wall (30) comprises a matrix arrangement of movable flaps (70). ), and wherein the inlet (9) of the air deflector (lo) fits in this matrix arrangement, in place of one of the movable flaps (70). 9- cooling unit (1) according to any one of the preceding claims in combination with claim 4> wherein the air deflection member (H) and / or the cross member (320) connecting the first peripheral wall ( 30) to the second peripheral wall (31) of the housing (3) are made of a composite material. 10. Motor vehicle comprising at least one cooling unit (1) according to any one of the preceding claims.