Ventilation module for a cooling module of a motor vehicle, ventilation comprising such a module and cooling module for a motor vehicle comprising such a ventilation

Abstract

The present invention relates to a module comprising: - at least one, preferably only one, tangential turbine (28-1; 28-2), which includes an impeller (32-1; 32-2) and a motor (33-1; 33-2) for rotating and driving the impeller (32-1; 32-2); - a frame (30-1; 30-2) forming an opening (60-1; 60-2), preferably only one opening; - a closing device (62-1; 62-2) designed to selectively close the opening (60-1; 60-2), the closing device (62-1; 62-2) having at least two regions that contact at a position where the closing device (62-1; 62-2) opens the opening and are separated by a distance at a position where they close the opening (60-1; 60-2).

Description

Technical Field

[0001] This invention relates to a ventilation device for a cooling module in a motor vehicle, and a cooling module including such a ventilation device for a motor vehicle, particularly an electric vehicle. The invention also relates to a motor vehicle equipped with such a cooling module. Background Technology

[0002] Whether it's an internal combustion engine or an electric motor, motor vehicles must dissipate the heat generated during operation, and for this purpose, heat exchangers are installed. Motor vehicle heat exchangers typically consist of pipes and heat exchange elements connected to these pipes, usually referred to by the term "fins," through which a heat transfer fluid, particularly a liquid such as water, flows. Fins are used to increase the exchange surface between the pipes and the ambient air.

[0003] However, in order to further increase the heat exchange between the heat transfer fluid and the ambient air, ventilation devices are often used to generate or increase the airflow through guide ducts and fins.

[0004] In a known manner, such a ventilation device includes a blower impeller fan.

[0005] The airflow generated by the blades of this type of fan is turbulent, especially due to the circular geometry of the blower impeller, and typically only reaches a portion of the heat exchanger surface (the circular area of ​​the exchanger facing the blower impeller). Therefore, heat exchange is uneven across the entire surface of the duct and fins.

[0006] Furthermore, when the fan does not need to be turned on (typically when heat exchange with unaccelerated ambient air is sufficient to cool the heat transfer fluid flowing in the exchanger), the blades partially impede the flow of ambient air toward the ducts and fins, thereby hindering airflow toward the exchanger and thus limiting heat exchange with the heat transfer fluid.

[0007] This type of fan also has a relatively large footprint, especially due to the size of the blower impeller required to achieve effective engine cooling, making its integration into a motor vehicle a lengthy and difficult process.

[0008] The purpose of this invention is to overcome these disadvantages, at least in part. Summary of the Invention

[0009] Therefore, the present invention relates to a ventilation device module for a cooling module of a motor vehicle, comprising at least one, preferably a single tangential turbine, the turbine including an impeller and a motor for rotating the impeller, a frame forming an opening, preferably a single opening, and a closing device adapted to selectively close the opening, the closing device having at least two regions that are in contact at a position where the closing device allows the opening to open and separate at a position where the opening is closed.

[0010] The ventilation module therefore has the advantage of a reduced footprint, making it easier to integrate into motor vehicles.

[0011] In addition, the location of the closing device to keep the openings in the frame open reduces pressure loss of the airflow through the cooling module, especially when the tangential turbine does not need to be turned on.

[0012] According to another embodiment, the closing device includes a cover adapted to be wound around itself about an axis so as to allow the opening to remain open.

[0013] According to another aspect, the module includes a motor that rotates and fastens a shaft to the cover, such that the rotation of the motor winds the cover onto the shaft.

[0014] According to another aspect, the module also includes a winder that is connected to the cover via a cable and the winder elastically pushes the cover toward the position where the opening is closed.

[0015] On the other hand, the movement of the cover relative to the frame is guided, in particular the cover is received in a groove in the frame.

[0016] On the other hand, the covering is flexible.

[0017] On the other hand, the cover is a single piece in the form of a flexible sheet, suitable for covering openings.

[0018] According to another aspect, the tangential turbine includes an air guide section from the ventilation module and an air outlet.

[0019] According to another aspect, the tangential turbine includes an air guide section from the ventilation module and an air outlet.

[0020] The present invention also relates to a ventilation device for a cooling module of a motor vehicle, comprising at least one ventilation device module as described above.

[0021] According to another aspect, the device includes two ventilation modules, each defining a separate opening.

[0022] According to another aspect, the turbines of the two ventilation modules are arranged such that the air outlet of the turbine of the first ventilation module faces the air outlet of the turbine of the second ventilation module.

[0023] According to another aspect, the turbines of the two ventilation modules are arranged such that the air outlet of the turbine of the first ventilation module is positioned facing the guide portion of the turbine of the second ventilation module.

[0024] According to another aspect, the turbines of the two ventilation modules are arranged such that the guide portion of the turbine of the first ventilation module is positioned facing the guide portion of the turbine of the second ventilation module.

[0025] The present invention also relates to a cooling module for motor vehicles, particularly motor vehicles with electric motors, comprising at least one heat exchanger and a ventilation device as described above, adapted to generate an airflow through at least one heat exchanger.

[0026] According to another aspect, the volute of each turbine includes a housing consisting of walls configured to house the impeller and guide air around the turbine to an air outlet designed to be an air outlet from the cooling module.

[0027] According to another aspect, the wall is in the shape of a truncated helix.

[0028] According to another aspect, the module includes a protective grille, preferably fastened to the opening.

[0029] According to another aspect, the frame defines an opening designed to be positioned facing at least a portion of the heat exchanger of the cooling module in the longitudinal direction of the vehicle. Alternatively, the opening may be positioned facing a specific heat exchanger.

[0030] According to another aspect, the frame includes a transverse member that extends on one side of the opening, opposite to the side where the turbine is located.

[0031] On the other hand, the transverse member extends in the transverse direction of the vehicle.

[0032] On the other hand, the covering can have a limited thickness.

[0033] On the other hand, the covering is airtight.

[0034] On the other hand, the covering is in the form of a flexible sheet, which is preferably a single piece.

[0035] According to another aspect, the shaft configured to be rotated by the motor extends near the first end of the opening near the at least one turbine.

[0036] According to another aspect, the shaft preferably extends near the first end of the opening near the first or second turbine.

[0037] On the other hand, one end of the cover is fixed to the pole.

[0038] On the other hand, the rod is slidably mounted on the frame.

[0039] On the other hand, grooves are formed on each side of the frame.

[0040] According to the other side, each groove receives the protrusion of the rod.

[0041] On the other hand, the cover is also accommodated in these grooves on each side of the frame.

[0042] On the other hand, the rod is specifically connected to at least one winder via two cables.

[0043] On the other hand, the winder is mounted to be elastically pushed to rotate toward the position where the cable is wound in the relevant winder.

[0044] On the other hand, the cables are arranged such that they are wound on pulleys positioned between the transverse member and the winder.

[0045] According to another aspect, the module is configured such that when the cable is fully wound, the cover completely covers the opening.

[0046] According to another aspect, the cover forms an angle between 5° and 20° with the air intake surface perpendicular to the airflow entering the ventilation device, preferably substantially equal to 12.5°.

[0047] According to another aspect, the device comprises two modules, and the frame of the ventilation device is made of a single integral part, with transverse members preferably separating the openings of each module, or alternatively, the frame of the ventilation device is formed by the frames of independent modules fastened together.

[0048] On the other hand, turbines are positioned so that they are dedicated to their respective exchangers.

[0049] On the other hand, the device is configured such that the opening can be closed only partially.

[0050] On the other hand, the device is configured such that the openings of the two modules can be closed completely or partially independently of each other.

[0051] According to another aspect, the device is configured such that a portion of the airflow can pass through an opening in a module with a smaller size, while another portion of the airflow is directed to a turbine in another module.

[0052] According to another aspect, the covering is made of slats that are connected to each other by hinges, so that the slats can pivot relative to each other.

[0053] According to another aspect, the cover is arranged such that, in a position where the opening remains unobstructed, the cover is wound around the shaft or retracted or folded back.

[0054] According to another aspect, the ventilation device 24 may include two modules, a single module, or more than two modules. Attached Figure Description

[0055] Other features, details, and advantages of the invention will become apparent from the following detailed description and analysis of the accompanying drawings, wherein:

[0056] Figure 1 The front of a motor vehicle as seen from the side is depicted schematically.

[0057] Figure 2 This is a schematic perspective view of a first example of a cooling module, which can... Figure 1 Implemented in a motor vehicle, including a ventilation device in a first configuration, wherein two openings through the frame of the ventilation device remain unobstructed;

[0058] Figure 3 It is formed Figure 3 A perspective view of the ventilation unit module in the ventilation system, in which the opening through its frame is kept unobstructed;

[0059] Figure 4 yes Figure 3 A perspective view of the central ventilation module, in a configuration where the opening through its frame is closed;

[0060] Figure 5 yes Figure 2 A perspective view of the intermediate cooling module in a second configuration where the opening through the ventilation frame is closed;

[0061] Figure 6 Is in Figure 5 A longitudinal sectional view of the ventilation module configured in the middle;

[0062] Figure 7 It is similar to Figure 5 The view is configured with the opening portion open.

[0063] Figure 8 It is similar to Figure 6 and 7 The view shows another configuration of the ventilation system, in which one opening in the frame remains open while the second opening is closed;

[0064] Figure 9 This is a schematic perspective view of a second example of a cooling module, which can... Figure 1 Implemented in motor vehicles;

[0065] Figure 10 This is a schematic perspective view of a third example module of the cooling module, which can be... Figure 1 Implemented in motor vehicles. Detailed Implementation

[0066] In the remainder of the specification, elements that are identical or perform the same function are denoted by the same reference numerals. For the sake of brevity, these elements are not described in detail in each embodiment. Instead, only the differences between different embodiments are described in detail.

[0067] These diagrams illustrate a reference frame (X, Y, Z). Direction X corresponds to the longitudinal direction of the vehicle's forward movement. Lateral direction Y is defined as perpendicular to longitudinal direction X. More specifically, longitudinal direction X and lateral direction Y may, for example, belong to a horizontal plane. Direction Z corresponds to the vertical direction.

[0068] Figure 1 The front of a motor vehicle 10 with a motor 12 is schematically shown. The vehicle 10 specifically includes a body 14 and a bumper 16 supported by a chassis (not shown) of the motor vehicle 10. The body 14 defines a cooling opening 18, i.e., an opening extending through the body 14. The cooling opening 18 can be a single opening as shown in the example. However, alternatively, the body 14 can define multiple cooling openings. Here, the cooling opening 18 is located at the lower part of the front 14a of the body 14. In the example shown, the cooling opening 18 is located below the bumper 16. A grille 20 can be positioned within the cooling opening 18 to prevent projectiles from passing through it. A cooling module 22 is positioned facing the cooling opening 18. The grille 20 specifically protects the cooling module 22.

[0069] Cooling module 22 in Figure 2 It is more clearly visible in the middle.

[0070] The cooling module 22 includes a ventilation device 24 associated with at least one heat exchanger 26, in this case two heat exchangers 26.

[0071] In this configuration, two heat exchangers 26 are positioned one after the other in the longitudinal direction X. Here, the two heat exchangers 26 are identical. Each heat exchanger 26 is typically in the shape of a parallelepiped, with its length extending parallel to the transverse direction Y, its depth extending parallel to the longitudinal direction X, and its height extending parallel to the vertical direction Z. Each heat exchanger 26 defines a roughly rectangular surface S extending in the plane (Y, Z), referred to as the working surface. Surface S is defined by two opposite sides 26-1, 26-2 corresponding to the length of the heat exchanger 26 in question, and two other opposite sides corresponding to the height of the heat exchanger 26 in question.

[0072] It will be noted that the present invention is not limited to a specific number of heat exchangers, or to a configuration that includes only the same heat exchangers. Therefore, multiple heat exchangers can be arranged vertically and / or horizontally side-by-side, in which case the height of surface S is the sum of the heights of the vertically arranged heat exchangers, and the length of surface S is the sum of the lengths of the horizontally arranged heat exchangers.

[0073] In addition, the ventilation device 24 here is composed of Figure 3 and Figure 4 Two ventilation device modules 100-1 and 100-2 of the type shown are formed.

[0074] The following will describe it in more detail. Figure 3 and 4 Modules 100-1 and 100-2 are similar. Unless otherwise stated, the elements of the second module 100-2 that are the same as those of the first module 100-1 have the same reference numerals in the drawings, except that the suffix "-2" is used instead of "-1".

[0075] like Figure 3 As shown, module 100-1 includes a tangential fan 28-1, or more generally, a tangential turbine, for drawing in airflow that comes into contact with the heat exchanger 26 of the cooling module 22. Of course, the invention is not limited to this configuration; the turbine can be installed as a blower, in which case the ventilation device is placed between the radiator grille and the exchanger.

[0076] The tangential turbine 28-1 includes a rotor 32-1. Here, the rotor includes a turbine 32-1, more specifically a tangential blower impeller or impeller. The turbine 32-1 has a cylindrical shape. Turbines 32-1 and 32-2 advantageously include multiple stages of blades (or impeller blades). The turbine 32-1 is rotatably mounted about an associated axis of rotation A32-1. The turbine 32-1 is rotated by an associated motor 33-1. Here, the axis of rotation A32-1 of the turbine 32-1 is oriented along the Y-axis.

[0077] Module 100-1 also includes a frame 30-1 that forms an internal air passage. The frame 30-1 allows for the housing of a turbine 32-1. In one embodiment, the rear portion of the frame 30-1 forms the volute of a tangential turbine 28-1.

[0078] Here, the volute of turbine 28-1 includes a housing 40-1 formed by walls 42-1 configured to house impeller 32-1 and guide air around turbine 28-1 to air outlet 46-1, which is intended to serve as an air outlet for cooling module 22. In a known manner, walls 42-1 are in the shape of a truncated helix.

[0079] Advantageously, the grille is secured to the outlet 46-1. This grille, in particular, prevents projectiles from entering the housing containing the turbine 32-1 and damaging the turbine 32-1.

[0080] In particular, such as Figure 3As shown, frame 30-1 defines opening 60-1, which is positioned to face at least a portion of the heat exchanger 26 of cooling module 22 in the longitudinal direction X. However, alternatively, openings 60-1, 60-2 may be intended to face a particular heat exchanger 26.

[0081] The frame 30-1 includes a transverse member 61-1, which extends on one side of the opening 60-1, opposite to the side where the turbine 28-1 is located. Here, the transverse member 61-1 extends substantially in the transverse direction Y.

[0082] Figure 3 and 4 The illustrated module 100-1 also includes a closing device 62-1 for closing the opening 60-1. The closing device 62-1 is adapted to selectively close the opening 60-1. Notably, here, the closing device 62 is configured to have at least two regions 63-1, 65-1, which are in contact when the closing device 62-1 allows the opening 60-1 to open and separate when the opening 60-1 is closed.

[0083] For example, in Figure 6 In the closed position, area 63-1 does not contact area 65-1 because the closing device 62-1 is in the closed position. In the open position (not shown), the two areas will contact each other. The same applies to the closing device 62-2, which includes two similar areas 63-2 and 65-2.

[0084] Here, the closing device 62 mainly comprises a cover 64-1, which is in sheet form and fastened at one end to a rod 66-1. The cover 64-1 is made of, for example, plastic. The cover 64-1 is preferably flexible relative to the rod 66-1. The cover 64-1 may have a limited thickness. The cover 64-1 is advantageously airtight. Here, the cover 64-1 takes the form of a flexible sheet, which is preferably a single piece. At the opposite end of the rod 66-1, the cover 64-1 is fastened to a shaft 68-1, which is connected to a motor 70-1. Therefore, rotation of the motor 70-1 can control the cover 64-1 to be wound around the shaft 68-1. The shaft 68-1 preferably extends near the first end of the opening 60-1, respectively near the first or second turbine 28-1. The shaft 68-1 extends parallel to the Y direction, similar to the axis A32-1 of the turbine 28-1.

[0085] Rod 66-1 is slidably mounted on frame 30-1 of module 100-1. For this purpose, a recess is formed on each side of frame 30-1. Each recess receives a protrusion of rod 66-1. Advantageously, cover 64-1 is also accommodated in these recesses on each side of frame 30-1.

[0086] Furthermore, the lever 66-1 is connected to winders 73-1 and 74-1 via two cables 72, and is elastically pushed to rotate toward the position where the cables 72 are wound in the respective winders 73-1 and 74-1. The winders 73-1 and 74-1 are preferably located near the shaft 68-1, and the cables 72 are wound on pulleys 75-1 disposed between the lever 66-1 and the winders 73-1 and 74-1. Figure 3 As shown, with the cable 72 completely wound in the winders 73-1 and 74-1, the cover 64-1 thus completely covers the opening 60-1.

[0087] Motor 70-1 controls the cover 64-1 to wind onto shaft 68-1 to overcome the forces of winders 73-1 and 74-1, thus opening opening 60-1. When motor 70-1 is not in motion, winders 73-1 and 74-1 allow cable 72 to be wound and cover 64-1 to return to its position, closing the associated opening 60-1. Intermediate configurations between the fully closed position of opening 60-1 and the fully retracted configuration where cover 64-1 fully opens opening 60-1 are possible. These intermediate configurations can be temporary or persistent over time during transitions from one extreme configuration to another.

[0088] like Figure 6 As shown, in the closed position, the covers 64-1, 64-2 form angles α1, α2 between 5° and 20° with the air intake surfaces S2-1, S2-2 perpendicular to the airflow entering the ventilation device 22, preferably substantially equal to 12.5°.

[0089] As mentioned above, Figure 2 and Figures 5 to 8 The ventilation device shown consists of two modules 100-1 and 100-2 of the type described above.

[0090] Here, the two modules 100-1 and 100-2 are related such that the frame 30 of the ventilation device 24 is constituted by a single integral component, namely the transverse member 61 separating the openings 60-1 and 60-2. In other words, here, the frames 30-1 and 30-2 of the two modules 100-1 and 100-2 are formed by the single frame 30 of the ventilation device 24 and the transverse member 61 separating the two openings 60-1 and 60-2. However, according to an alternative embodiment, the frame 30 of the ventilation device 24 may be formed by the frames 30-1 and 30-2 of the independent modules 100-1 and 100-2 fastened together.

[0091] Here, the two modules 100-1 and 100-2 are positioned such that the first and second turbines 28-1 and 28-2 are installed parallel to each other, that is, the airflow F1 discharged from the first turbine 32-1 of the first turbine 28-1 is separate from the airflow F2 discharged from the second turbine 32-2 of the second turbine 28-2. In other words, the airflow F1 discharged from the first turbine 32-1 does not pass through the second turbine 32-2, and vice versa.

[0092] In this example, the two modules 100-1 and 100-2 are positioned such that the rotation axes A32-1 and A32-2 of the turbines 32-1 and 32-2 are parallel to the Y direction. Therefore, the two turbines 32-1 and 32-2 are mounted horizontally, in this case, in the lateral direction Y. Alternatively, the rotation axes A32-1 and A32-2 can be vertical, i.e., parallel to the Z-axis.

[0093] As can be clearly seen from the figure, the rotation axis A32-1 of the turbine 28-1 of the first module 100-1 is positioned at the upper longitudinal edge 26-1, which is basically facing the surface S. The rotation axis A32-2 of the turbine 28-2 of the second module 100-2 is positioned at the lower longitudinal edge 26-2, which is basically facing the surface S.

[0094] However, depending on the configuration of the heat exchangers and / or the cooling power required by each exchanger, turbines 28-1 and 28-2 may be positioned so that they are dedicated to their respective exchangers 26. Other relative positions of turbines 28-1 and 28-2 are also possible.

[0095] according to Figure 2 and Figures 5 to 8 In the illustrated embodiment, the outlets 46-1 and 46-2 of the turbines 28-1 and 28-2 of modules 100-1 and 100-2 are positioned facing each other, oriented substantially towards the same point, but in opposite directions. This configuration ensures that a first airflow F1 originating from the first turbine 28-1 via the associated first outlet 46-1 and a second airflow F2 originating from the second turbine 28-2 via the associated second outlet 46-2 move substantially towards the same point and in opposite directions. In this case, the first and second airflows F1 and F2 are substantially vertical.

[0096] Each turbine 28-1, 28-2 extends along openings 60-1, 60-2 of the associated modules 100-1, 100-2. Each opening 60-1, 60-2 allows at least a portion of the airflow F that has passed through the heat exchanger 26 to exit the cooling module 22 without passing through one of the turbines 28-1, 28-2. The airflow F that has passed through the exchanger 26 bypasses the turbines 28-1, 28-2, thus limiting the pressure loss of the airflow F, especially when the turbines 28-1, 28-2 are shut off, for example, when the motor vehicle 10 is traveling at a high speed sufficient to generate an airflow F that allows cooling of the heat exchanger 26.

[0097] However, for example at low speeds, it may be necessary to open one or both of turbines 28-1 and 28-2. It is then beneficial to guide airflow through the open turbines 28-1 and 28-2 across the heat exchanger 26. In this case, openings 60-1 and 60-2 can be closed, and the closure of openings 60-1 and 60-2 also allows airflow to be directed to turbines 28-1 and 28-2.

[0098] like Figure 7 As shown, openings 60-1 and 60-2 can be partially closed.

[0099] In addition, such as Figure 8 As shown, the openings 60-1 and 60-2 of the two modules 100-1 and 100-2 can be closed completely or partially independently of each other. In other words, the closing devices 62-1 and 62-2 of the two modules 100-1 and 100-2 are advantageously separate and / or independent. Therefore, in Figure 8 In particular, the opening 60-1 of one module 100-1 can be completely or partially closed, while the opening 60-2 of another module 100-2 is completely or partially open.

[0100] In the configuration where openings 60-1 and 60-2 are closed by covers 64-1 and 64-2, the covers 64-1 and 64-2 allow the generated airflow to be directed to the turbines 28-1 and 28-2 of the relevant modules 100-1 and 100-2. In contrast, in the configuration where covers 64-1 and 64-2 fully open the openings 60-1 and 60-2 of both modules 100-1 and 100-2, at least a portion of the airflow, typically generated by the speed of a vehicle equipped with cooling module 22, can be directed through the openings 60-1 and 60-2 in the frame 30 without passing through the turbines 28-1 and 28-2, which is usually achieved when turbines 28-1 and 28-2 are closed. The airflow is thus “diverted” from the turbines 28-1 and 28-2. The intermediate configuration allows some airflow to pass through the openings 60-1 and 60-2 of the smaller modules 100-1 and 100-2, while another portion of the airflow is directed to the turbines 28-1 and 28-2 of the modules 100-1 and 100-2.

[0101] Figure 9 A second example of the ventilation device 24 is shown, wherein two modules 100-1, 100-2 are arranged such that the air outlet 46-1 of the turbine 28-1 of the first module 100-1 is positioned facing the guide portion 42-2 of the turbine 28-2 of the second module 100-2. This thus limits the risk of mutual interference between the airflows F1, F2 originating from the two turbines 28-1, 28-2.

[0102] Figure 10 A third example of the ventilation device 24 is shown, wherein the two modules 100-1, 100-2 are arranged such that the guide portion 42-1 of the turbine 28-1 of the first module 100-1 is positioned facing the guide portion 42-2 of the turbine 28-2 of the second module 100-2. Here, the two air outlets 46-1, 46-2 of the two turbines 28-1, 28-2 therefore face opposite directions, further reducing the risk of mutual interference between the airflows F1, F2 originating from the two turbines 28-1, 28-2.

[0103] The present invention is not limited to the examples described above. Rather, the invention can be the subject of many variations available to those skilled in the art.

[0104] Specifically, in the example shown, covers 64-1 and 64-2 are single pieces. Alternatively, the cover body can be constructed of slats connected to each other by hinges, such that the slats can pivot relative to each other.

[0105] Furthermore, in the example shown, the cover moves from a closed position (openings 60-1, 60-2) to a position where openings 60-1, 60-2 are open by winding it around the shaft. Alternatively, the cover can be retracted or folded back.

[0106] Similarly, in the example shown, the ventilation device 24 includes two modules 100-1 and 100-2. Alternatively, the ventilation device 24 may consist of a single module 100-1 and 100-2 or more than two modules 100-1 and 100-2.

Claims

1. A module (100-1; 100-2) of a ventilation device (24) for a cooling module (22) of a motor vehicle (10), comprising: - At least one tangential turbine (28-1; 28-2), which includes an impeller (32-1; 32-2) and a motor (33-1; 33-2) for rotating the impeller (32-1; 32-2). -Frame (30-1; 30-2), which forms an opening (60-1; 60-2), - Shutdown device (62-1); 62-2), which is adapted to selectively close the opening (60-1; 60-2), the closing device (62-1; 62-2) has at least two regions (63-1, 63-2, 65-1, 65-2), said at least two regions being in the closing device (62-1; 62-2) The openings (60-1; 60-2) are made accessible by contact, and separated by separation at the closed positions. The openings (60-1, 60-2) allow at least a portion of the airflow (F) that has passed through the heat exchanger (26) to leave the cooling module (22) without passing through the turbine (28-1, 28-2), and closing the openings (60-1, 60-2) by means of the closing device also allows the airflow (F) that has passed through the heat exchanger (26) to be directed to the turbine (28-1, 28-2).

2. The module of the ventilation device as claimed in claim 1, wherein, The closing device (62-1; 62-2) includes a cover (64-1; 64-2) adapted to be wound around itself about an axis to allow the opening (60-1; 60-2) to remain open.

3. The module of the ventilation device as claimed in claim 2, comprising a motor (70-1; 70-2) that rotates a shaft (68-1; 68-2) fastened to the cover (64-1; 64-2) such that the rotation of the motor (70-1; 70-2) causes the cover (64-1; 64-2) to be wound around the shaft (68-1; 68-2).

4. The module of the ventilation device as claimed in claim 3 further includes a winder (73-1, 74-1; 73-2, 74-2) connected to the cover (64-1; 64-2) via a cable (72), the winder (73-1, 74-1; 73-2, 74-2) elastically pushing the cover (64-1; 64-2) toward a closed position of the opening (60-1; 60-2).

5. The module of the ventilation device as described in any one of claims 2 to 4, wherein, The movement of the cover (64-1; 64-2) relative to the frame (30) is guided, in particular the cover (64-1; 64-2) is received in a groove in the frame (30).

6. The module of the ventilation device as claimed in claim 2, wherein, The covering (64-1; 64-2) is flexible.

7. The module of the ventilation device as claimed in claim 6, wherein, The cover (64-1; 64-2) is a single piece in the form of a flexible sheet, suitable for covering the opening (60-1; 60-2).

8. The module of the ventilation device as claimed in claim 1, wherein, The tangential turbine (28-1; 28-2) includes an air guide section (42-1; 42-2) and an air outlet (46-1; 46-2) from the ventilation module (100-1; 100-2).

9. The module of the ventilation device as claimed in claim 1, comprising: A single tangential turbine (28-1; 28-2), wherein the frame (30-1; 30-2) forms a single opening (60-1; 60-2).

10. A ventilation device (24) for a cooling module (22) of a motor vehicle (10), comprising at least one module of a ventilation device as described in any of the preceding claims.

11. The ventilation device (24) of claim 10, comprising two ventilation device modules (100-1; 100-2), each ventilation device module (100-1; 100-2) defining a separate opening (60-1; 60-2).

12. The ventilation device as claimed in claim 11, wherein, The turbines (28-1; 28-2) of the two ventilation modules (100-1; 100-2) are arranged such that the air outlet (46-1) of the turbine (28-1) of the first ventilation module (100-1) is positioned facing the air outlet (46-2) of the turbine (28-2) of the second ventilation module (100-2).

13. The ventilation device as claimed in claim 11, wherein, The turbines (28-1; 28-2) of the two ventilation modules (100-1; 100-2) are arranged such that the air outlet (46-1) of the turbine (28-1) of the first ventilation module (100-1) is positioned facing the guide portion (42-2) of the turbine (28-2) of the second ventilation module (100-2).

14. The ventilation device as claimed in claim 11, wherein, The turbines (28-1; 28-2) of the two ventilation modules (100-1; 100-2) are arranged such that the guide portion (42-1) of the turbine (28-1) of the first ventilation module (100-1) is positioned facing the guide portion (42-2) of the turbine (28-2) of the second ventilation module (100-2).

15. A cooling module (22) for a motor vehicle, particularly a motor vehicle with an electric motor, comprising: -At least one heat exchanger (26), and - The ventilation device (24) as claimed in any one of claims 10 to 14 is adapted to generate an airflow through the at least one heat exchanger (26).

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