Collection box for cooling module of electric or hybrid motor vehicle having tangential flow turbine
By designing an improved structure in the collector housing of the motor vehicle cooling module, including tangential flow turbine, side wall, volute and guide wall, the problem of increased air flow pressure drop when the vehicle is traveling is solved, achieving more efficient heat exchange and aerodynamic performance.
Patent Information
- Application Number
- CN202380063930.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-08
- Filing Date
- 2023-09-07
- Publication Date
- 2025-04-18
AI Technical Summary
The collector housing of the motor vehicle cooling module increases the pressure drop of the air flow due to obstacles in the shape of the volute while the vehicle is driving, which impairs the operation and aerodynamics of the heat exchanger.
An improved collector housing is designed, including a tangential flow turbine, side walls, volutes and guide walls, with openings and pivotable shut-off flap and a stopper to limit the opening angle of the flap.
Through the improved collector housing design, air flow emissions are optimized, pressure drop is reduced, and the operation efficiency of the heat exchanger and the aerodynamic performance of the motor vehicle are improved.
Smart Images
Figure CN119855724A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a cooling module for an electric or hybrid motor vehicle having a tangential flow turbine, and more particularly to a collector housing of such a cooling module. Background Art
[0002] A cooling module (or heat exchange module) of a motor vehicle generally comprises at least one heat exchanger and a ventilation device designed to generate an air flow in contact with the at least one heat exchanger. The ventilation device is, for example, in the form of a tangential flow turbine positioned in a volute of a collector housing of the cooling module. The tangential flow turbine makes it possible in particular to generate an air flow in contact with the heat exchanger or heat exchangers, in particular when the vehicle is stationary or when the vehicle is moving at a low speed.
[0003] When the vehicle is moving, the high speed of the vehicle may be sufficient to generate an air flow without assistance from the tangential flow turbine. However, the shape of the volute may become an obstacle to the air flow through the cooling module (and more specifically the collector housing), thus greatly increasing the pressure drop, which may impair the correct operation of the heat exchanger and may impair the aerodynamics of the motor vehicle. In order to overcome this disadvantage, in addition to the air outlet of the tangential flow turbine, the cooling module may also include at least one other opening located on the rear face of the cooling module, which is juxtaposed with the air outlet of the tangential flow turbine. Thus, when the vehicle is running and has reached a sufficient speed, the opening or these openings make it possible to allow the air flow to pass through the tangential flow turbine and bypass the tangential flow turbine.
[0004] Furthermore, the cooling module may comprise at least one shut-off device, which enables closing of the additional opening or openings. The shut-off device may in particular have one or more flaps, which are configured to pivot between a position referred to as open and a position referred to as closed, so that the air flow discharged via the additional opening or openings can be adjusted where applicable.
[0005] However, the space available for arranging the cooling module in a motor vehicle is relatively compact. Therefore, equipment located around the cooling module, such as an electric motor of an electric vehicle or a hybrid vehicle, may become a potential obstacle to the airflow and / or the flap of the shut-off device, in particular in the case where the additional opening or openings and the shut-off device or devices associated therewith are arranged on the rear face of the collector housing. Therefore, depending on the expected arrangement of potential obstacles and on the space available around the collector housing, the position of the airflow discharge opening or openings should be appropriately optimized, while promoting a compact design of the housing. Summary of the invention
[0006] The object of the present invention is therefore to at least partially overcome the disadvantages of the prior art and to propose an improved collector housing which allows the air flow to be discharged while the vehicle is moving while optimizing the available space.
[0007] The invention therefore relates to a collector housing for a cooling module of an electric or hybrid motor vehicle, the collector housing being intended to allow an air flow to pass through it,
[0008] The collector housing includes a tangential flow turbine configured to generate the air flow, and the collector housing further includes:
[0009] - at least one side wall forming a duct through which the air flow is intended to circulate,
[0010] a volute configured to direct the air flow towards an air outlet and within which the tangential flow turbine is positioned, and
[0011] - a guide wall for directing the air flow towards the air outlet,
[0012] The guide wall and / or the at least one side wall comprises at least one opening and at least one shut-off flap which is mounted so as to be pivotable between an open position and a closed position of the opening,
[0013] The collector housing includes at least one stopper configured to limit an opening angle of the at least one shutoff flap in the open position.
[0014] According to one aspect of the invention, the at least one stop is positioned on the at least one shut-off flap.
[0015] According to another aspect of the invention, the at least one stop is integral with the at least one shut-off flap.
[0016] According to another aspect of the invention, the at least one stop is a component fastened to the at least one shut-off flap.
[0017] According to another aspect of the invention, the at least one stopper is positioned on the at least one side wall and / or guide wall of the collector housing.
[0018] According to another aspect of the invention, said at least one stopper is integral with said at least one side wall and / or guide wall of the collector housing.
[0019] According to another aspect of the invention, the at least one stopper is a component fastened to the at least one side wall and / or guide wall of the collector housing.
[0020] According to another aspect of the invention, the guide wall and / or the at least one side wall and / or the guide wall comprises a plurality of shut-off flaps, and the stopper is configured such that the shut-off flaps have an opening angle specific to each shut-off flap.
[0021] According to another aspect of the present invention, the collector housing comprises a lower side wall comprising at least one opening and at least one shutoff flap, wherein the at least one stopper is configured such that an opening angle of the at least one shutoff flap is less than or equal to 7°.
[0022] The invention also relates to a cooling module for an electric or hybrid motor vehicle, the cooling module being intended to allow a flow of air through it and comprising:
[0023] a fairing forming an internal duct in the longitudinal direction of the cooling module and inside which is located at least one heat exchanger intended to pass an air flow through it, and
[0024] - A collector housing as described above, said collector housing being positioned downstream of the fairing in the longitudinal direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Other characteristics and advantages of the invention will become more apparent on reading the following description given by way of non-limiting illustration and with reference to the accompanying drawings, in which:
[0026] Figure 1 A schematic diagram showing the front part of a motor vehicle in side view,
[0027] Figure 2 shows a schematic perspective representation of a front part of a motor vehicle and a partial cross section of a cooling module according to a first embodiment,
[0028] Figure 3 a schematic perspective view showing the inner face of a collector housing of a cooling module,
[0029] Figure 4 The diagram shows a first embodiment according to the closed position of the flap. Figure 3 A schematic perspective view of the rear face of the collector housing in FIG.
[0030] Figure 5 The diagram shows a first embodiment according to the open position of the flap. Figure 3 A schematic perspective view of the rear face of the collector housing in FIG.
[0031] Figure 6 The closed position of the flap is shown Figure 4 Schematic diagram of a cross section of the collector housing,
[0032] Figure 7 The opening position of the flap is shown Figure 5 Schematic diagram of a cross section of the collector housing,
[0033] Figure 8 shows a schematic cross-sectional view of the rear face of the collector housing according to a second embodiment and according to the closed position of the flap,
[0034] Fig. 9 shows a schematic cross-sectional view of the rear face of the collector housing according to a second embodiment and according to the open position of the flap,
[0035] Fig.10 a schematic perspective view of the lower part of the rear face of the collector housing according to the closed position of the flap,
[0036] Fig.11 A schematic perspective view of the lower part of the rear face of the collector housing is shown according to the open position of the flap.
[0037] In the various figures, the same elements have the same reference numerals. DETAILED DESCRIPTION
[0038] The following embodiments are examples. Although the description relates to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that a feature applies only to a single embodiment. Simple features of different embodiments may also be combined and / or interchanged to provide other embodiments.
[0039] In this specification, some elements or parameters may be indexed, such as the first element or the second element, and the first parameter and the second parameter, or the first standard and the second standard, etc. In this case, the index is only used to distinguish and represent similar but not identical elements or parameters or standards. The index does not mean the priority of one element, parameter or standard relative to another element, parameter or standard, and these names can be easily interchanged without departing from the scope of this specification. The index also does not mean any time order, such as when evaluating any given standard.
[0040] In this specification, "upstream" is understood to mean that one element is placed before another element relative to the flow direction of the gas flow. In contrast, "downstream" is understood to mean that one element is arranged after another element relative to the flow direction of the flow or fluid.
[0041] exist Figures 1 to 9, in order to define the orientation of the elements relative to each other. The first direction, denoted X, corresponds to the longitudinal direction of the vehicle. It also corresponds to the direction opposite to the forward travel direction of the vehicle. The second direction, denoted Y, is the lateral or transverse direction. Finally, the third direction, denoted Z, is vertical. The directions X, Y, Z are orthogonal in pairs.
[0042] exist Figure 1 and Figure 2 In FIG. 1 , the cooling module according to the invention is shown in the functional position, that is to say when it is positioned in a motor vehicle.
[0043] Figure 1 The front part of an electric or hybrid motor vehicle 10 which may include an electric motor 12 is schematically shown. The vehicle 10 comprises in particular a body 14 supported by a chassis (not shown) of the motor vehicle 10 and a bumper 16. The body 14 defines a cooling opening 18, that is to say an opening through the body 14. In this case, there is only one cooling opening 18. This cooling opening 18 is preferably located in the lower part of the front face 14a of the body 14. In the example shown, the cooling opening 18 is located below the bumper 16. A grille 20 may be positioned in the cooling opening 18 to prevent projectiles from being able to pass through the cooling opening 18. A cooling module 22 is positioned facing the cooling opening 18. The grille 20 in particular makes it possible to protect the cooling module 22.
[0044] like Figure 2 As shown, the cooling module 22 is intended for an air flow F to pass through the cooling module 22 parallel to a direction X and to run from the front to the rear of the vehicle 10. This direction X corresponds more particularly to a longitudinal direction X running from the front to the rear of the cooling module 22. The front corresponds to the front of the motor vehicle 10 in the installed state, or to the face of the cooling module 22 through which the air flow F is intended to enter the cooling module 22. The rear, for its part, corresponds to the rear of the motor vehicle 10, or to the face of the cooling module 22 through which the air flow F is intended to leave the cooling module 22.
[0045] The cooling module 22 basically comprises a housing or fairing 40 forming an internal passage between upstream and downstream ends 40a, 40b, opposite to each other. At least one heat exchanger 24, 26, 28 is positioned inside said fairing 40. The internal passage is preferably oriented parallel to the longitudinal direction X, so that the upstream end 40a is oriented toward the front of the vehicle 10, facing the cooling opening 18, and so that the downstream end 40b is oriented toward the rear of the vehicle 10. Figure 2 In FIG. 2 , the cooling module 22 includes three heat exchangers 24, 26, 28 grouped together in a set of heat exchangers 23. However, it may include more or less depending on the desired configuration.
[0046] The first heat exchanger 24 may, for example, be configured to release thermal energy from the air flow F. The first heat exchanger 24 may more specifically be a condenser connected to a cooling circuit (not shown), for example in order to cool a battery of the vehicle 10. The cooling circuit may, for example, be an air conditioning circuit capable of cooling the battery and an internal air flow destined for the interior of the motor vehicle.
[0047] The second heat exchanger 26 may also be configured to release thermal energy into the air flow F. The second heat exchanger 26 may more specifically be a heat sink connected to a thermal management loop (not shown) for an electrical component, such as the electric motor 12 .
[0048] Since the first heat exchanger 24 is usually the condenser of the air conditioning circuit, the air conditioning circuit requires that the air flow F is as "cold" as possible in the air conditioning mode. For this reason, the second heat exchanger 26 is preferably positioned downstream of the first heat exchanger 24 in the longitudinal direction X of the cooling module 22. However, it is entirely conceivable that the second heat exchanger 26 is positioned upstream of the first heat exchanger 24.
[0049] The third heat exchanger 28 itself may also be configured to release thermal energy into the air flow. The third heat exchanger 28 may more specifically be a heat sink connected to a thermal management loop (not shown), which may be separate from the thermal management loop connected to the second heat exchanger 26 for electrical components such as power electronics. It is also entirely conceivable that the second heat exchanger 26 and the third heat exchanger 28 are connected to a single thermal management loop, for example connected in parallel with each other.
[0050] Still according to Figure 2 In the illustrated example, the second heat exchanger 26 is located downstream of the first heat exchanger 24, while the third heat exchanger 28 is located upstream of the first heat exchanger 24. However, other configurations are contemplated, such as where both the second heat exchanger 26 and the third heat exchanger 28 are located downstream or upstream of the first heat exchanger 24.
[0051] exist Figure 2 In the embodiment shown, each of the heat exchangers 24, 26, 28 has a generally parallelepiped shape determined by a length, a thickness and a height. The length extends in the direction Y, the thickness extends in the direction X, and the height extends in the direction Z. The heat exchangers 24, 26, 28 thus extend in a general plane parallel to the vertical direction Z and the lateral direction Y. This general plane is preferably perpendicular to the longitudinal direction X of the cooling module 22.
[0052] The cooling module 22 also includes a first collector housing 41 positioned downstream of the set of heat exchangers 23 in the circulation direction of the air flow. The first collector housing 41 includes an outlet 22b for the air flow F. Thus, the first collector housing 41 makes it possible to recover the air flow F passing through the set of heat exchangers 23 and direct it toward the outlet 22b. The first collector housing 41 may be integral with the fairing 40, or it may be an additional component fastened to the downstream end 40b of the fairing 40.
[0053] The collector housing 41 comprises one or more side walls 411 , 412 and 413 forming a duct in which the air flow F is intended to circulate and which extends in the continuation of the internal duct of the fairing 40 . Figure 2 In the embodiment shown, the internal duct of the fairing 40 has the overall shape of a parallelepiped, and the upstream portion of the collector casing 41 extending the internal duct of the fairing 40 also has the overall shape of a parallelepiped.
[0054] The collector housing 41 more specifically includes an upper side wall 411 and a lower side wall 412, each of which extends in a plane substantially parallel to the plane generated by the axes X and Y. The upper side wall 411 and the lower side wall 412 face each other. The collector housing 41 also includes two transverse side walls 413, each of which extends in a plane substantially parallel to the plane generated by the axes X and Z. The two transverse side walls 413 are used to connect the upper side wall 411 and the lower side wall 412, and the transverse side walls 413 face each other.
[0055] “Up” and “down” here refer to orientation in direction Z. An “upper” element will be closer to the roof of the vehicle 10 , while a “lower” element will be closer to the ground.
[0056] In the direction Z, the spacing between the upper side wall 411 and the lower side wall 412 is in particular equal to or greater than the individual height of each of the heat exchangers 24, 26, 28. Similarly, the spacing between the lateral side walls 413 in the direction Y is, for example, equal to or greater than the individual length of the heat exchangers 24, 26, 28.
[0057] According to an embodiment not shown in the figures, the internal duct of the fairing 40 and the collector housing 41 can have a cross section with a shape different from a quadrilateral shape. The cross section can in particular adopt a hexagonal shape (in this case, the fairing 40 and the collector housing 41 each have six side walls, respectively), an octagonal shape (in this case, the fairing 40 and the collector housing 41 each have eight side walls, respectively) or a circular shape (in this case, the fairing 40 and the collector housing 41 are cylindrical and each have a single side wall forming the shell wall of the cylinder). The cross section depends mainly on the geometry of the at least one heat exchanger 24, 26, 28 positioned in the internal duct of the fairing 40.
[0058] The cooling module 22, more particularly, the collector housing 41, further comprises at least one tangential flow fan (also referred to as a tangential flow turbine 30) configured to generate an air flow F through the set of heat exchangers 23. The tangential flow turbine 30 is positioned in the collector housing 41 such that a lateral side wall 413 of the collector housing 41 is substantially perpendicular to the rotation axis A of the turbine 32, as shown in FIG. Figure 3 The transverse sidewalls 413 are more particularly situated on each side of the end of the turbine 30 .
[0059] The tangential flow turbine 30 includes a generally cylindrical rotor or turbine 32. The turbine 32 advantageously includes multiple stages of blades (or vanes) that are arranged at Figures 3 to 9 The turbine 32 is mounted to rotate about an axis of rotation A, which is for example parallel to the direction Y. The diameter of the turbine 32 is for example between 35 mm and 200 mm, so as to limit its size. The tangential flow turbine 30 is thus compact.
[0060] The tangential flow turbine 30 may also include a motor 31 (at Figures 2 to 5 The motor 31 is capable of rotating the turbine 32 at a speed of between 200 rpm and 14,000 rpm, for example. This makes it possible in particular to limit the noise generated by the tangential flow turbine 30 .
[0061] exist Figures 2 to 9 In the example shown, the tangential flow turbine 30 is in a high position, in particular in the upper third of the collector housing 41, preferably in the upper quarter of the collector housing 41. This makes it possible in particular to protect the tangential flow turbine 30 in the event of immersion and / or to limit the space occupied by the cooling module 22 in its lower part. In this particular case, the air outlet 22b for the air flow F is preferably oriented towards the lower part of the cooling module 22.
[0062] However, it is possible to envisage that the tangential flow turbine 30 is in a low position, in particular in the lower third of the collector housing 41. This will make it possible to limit the space occupied by the cooling module 22 in its upper part. In this particular case, the air outlet 22b for the air flow will preferably be oriented towards the upper part of the cooling module 22. Alternatively, the tangential flow turbine 30 may be in an intermediate position, in particular in the middle third of the height of the first collector housing 41, for example for reasons of integrating the cooling module 22 into its surroundings. These alternatives are not shown.
[0063] The turbine 32 is particularly positioned at the center of a volute 44 configured to direct the air flow F toward the air outlet 22b. The volute 44 thus comprises a curved outer wall 440 formed by an upper side wall 411 or a lower side wall 412 depending on the position of the tangential flow turbine 30 and the orientation of the air outlet 22b. Specifically, if the tangential flow turbine 30 is in a position such as Figures 2 to 9 If the tangential flow turbine 30 is in the high position shown, the curved outer wall 440 will be the upper side wall 411 of the collector housing 41, and the air outlet 22b will be oriented downwards, that is, towards the ground in the installed state in the vehicle. Conversely, if the tangential flow turbine 30 is in the low position (not shown), the curved outer wall 440 will be the lower side wall 412 of the collector housing 41, and the air outlet 22b will be oriented upwards, that is, towards the top of the vehicle in the installed state in the vehicle.
[0064] In order to guide the air from the set of heat exchangers 23 to the air outlet 22b, the collector housing 41 includes a guide wall 46 positioned facing the downstream end 40b of the fairing 40, which is used to guide the air flow F toward the air outlet 22b. The guide wall 46 more specifically includes an upstream edge 451 (at Figures 6 to 9 The air outlet 22b for the air flow F can be defined in a complementary manner to the volute 44 (see in cross section in FIG. 4 ). Here, the “upstream side edge 451” means the edge of the air outlet 22b closest to the downstream end 40b of the fairing 40.
[0065] The guide wall 46 may in particular be inclined relative to a plane P1 oriented perpendicularly to the longitudinal direction X of the cooling module 22. The guide wall 46 may more particularly form an acute angle α with this plane P1, as in particular at Figure 8 and Fig. 9 The angle α is, for example, between 10° and 23°. The inclination of the guide wall 46 allows a better circulation of the air flow F inside the collector housing 41 and limits the pressure drop.
[0066] like Figures 3 to 7As shown, the guide wall 46 may include at least one opening O1 and at least one pivoting flap 460 for each opening. The at least one pivoting flap 460 makes it possible to open or close the at least one opening O1. More specifically, the at least one pivoting flap 460 is installed to be able to pivot between a position in which the opening O1 is opened and a position in which the opening O1 is closed. The at least one pivoting flap 460 is installed on the outer face of the guide wall 46 so as to be open toward the outside of the collector housing 41.
[0067] The guide wall 46 may include one or more openings O1. Therefore, the cooling module 22 may include one or more flaps 460. The pivoting flaps 460 mounted on the outer face of the guide wall 46 may be as many as the openings O1. Figures 3 to 5 In the example of FIG. 4 , the number of the openings O1 and the number of the pivot flaps 460 on the guide wall 46 are sixteen.
[0068] The at least one pivoting flap 460 is, for example, mounted so as to be pivotable about a pivot axis which, in the mounted state in the motor vehicle 10, extends horizontally and in the plane formed by the guide wall 46. The at least one pivoting flap 460 may take the form of a centrally suspended flap or an end-suspended flap of the butterfly type.
[0069] The at least one pivoting flap 460 can be "free" or "passive" in the sense that only gravity brings the at least one pivoting flap 460 of the guide wall 46 into its closed position and holds it there. In other words, the cooling module 22 does not include any mechanical components or any control device configured to actively control the opening and / or closing of the pivoting flap 460. The pivot axis of the pivoting flap 460 is then positioned on the upper side of the opening O1 so as to passively fall back into the closed position, closing the opening O1. Therefore, the pivoting flap 460 is always subject to gravity, but when the motor vehicle 10 moves at a sufficiently high speed, the air flow F passing through the cooling module 22 can exert pressure on the pivoting flap 460, causing the pivoting flap to move from its closed position to its open position. In this case, the air flow F passes through the opening O1 in the guide wall 46. In Figure 5 , only the two lower pivoting flaps 460 are shown in the open position.
[0070] Similar to the guide wall 46, the lateral side wall 413 may also include openings O2 and at least one pivoting flap 470 for each opening O2. Figures 3 to 7As shown. The at least one pivoting flap 470 makes it possible to open or close the at least one opening O2. More specifically, the at least one pivoting flap 470 is mounted to be able to pivot between a position in which the opening O2 is opened and a position in which the opening O2 is closed. The at least one flap 470 is mounted on the outer face of the transverse side wall 413 so as to be open toward the outside of the collector housing 41.
[0071] Each transverse side wall 413 may include one or more openings O2. Therefore, the cooling module 22 may include one or more pivoting flaps 470. In particular, the number of pivoting flaps 470 mounted on the transverse side wall 413 is the same as the number of openings O2. Figure 3 and Figure 5 In the example of FIG. 4 , the number of pivoting flaps 470 is three.
[0072] The at least one flap 470 is mounted, for example, so as to be pivotable about a pivot axis which, in the mounted state in the motor vehicle 10, extends horizontally and in the plane formed by the transverse side walls 413. The at least one pivoting flap 470 may take the form of a centrally suspended flap or an end-suspended flap of the butterfly type.
[0073] The at least one pivoting flap 470 may also be "free" or "passive", in the sense that only gravity brings the pivoting flap 470 into its closed position and holds it there. In other words, the cooling module 22 does not include any mechanical components or any control device configured to actively control the opening and / or closing of the pivoting flap 470. The pivot axis of the pivoting flap 470 is then positioned on the upper side of the opening O2 so as to passively fall back into the closed position. Therefore, the pivoting flap 470 is always subject to gravity, but when the motor vehicle 10 moves at a sufficiently high speed, the air flow F passing through the cooling module 22 can exert pressure on the pivoting flap 470, causing the pivoting flap 470 to move from its closed position to its open position. In this case, the air flow F passes through the opening O2 in the lateral side wall 413. When the tangential flow turbine 30 is running, a vacuum is generated upstream of the turbine 32, thereby keeping the pivoting flap 470 in the closed position.
[0074] like Figure 6 and Figure 7As shown, the upper side wall 411 or the lower side wall 412 opposite to the curved outer wall 440 of the volute 44 may also include at least one opening O3 and at least one pivot flap 480 for each opening O3. The at least one pivot flap 480 makes it possible to open or close the at least one opening O3. More specifically, the at least one pivot flap 480 is installed to be able to pivot between a position where the opening O3 is open and a position where the opening O3 is closed. The at least one pivot flap 480 is installed on the outer surface of the upper side wall 411 or the lower side wall 412 opposite to the curved outer wall 440 of the volute 44 so as to be open to the outside of the collector housing 41. Figure 6 and Figure 7 In the example shown, the opening O3 and the at least one pivoting flap 480 are positioned on the lower side wall 412 because the volute 44 and the tangential flow turbine 30 are in a high position and the curved outer wall 440 of the volute 44 is formed by the upper side wall 411 .
[0075] The upper side wall 411 or the lower side wall 412 opposite to the curved outer wall 440 of the volute 44 may include one or more openings O3. Therefore, the cooling module 22 may include one or more pivoting flaps 480. The pivoting flaps 480 installed on the upper side wall 411 or the lower side wall 412 opposite to the curved outer wall 440 of the volute 44 are particularly as many as the openings O3.
[0076] The at least one pivoting flap 480 is, for example, mounted so as to be pivotable about a pivot axis which, in the mounted state in the motor vehicle 10, extends horizontally and in a plane formed by the upper side wall 411 or the lower side wall 412 opposite the curved outer wall 440 of the volute 44. The at least one pivoting flap 480 may take the form of a centrally suspended flap or an end-suspended flap of the butterfly type.
[0077] The at least one pivoting flap 480 may also be “free” or “passive” in the sense that only gravity brings the at least one pivoting flap 480 into its closed position and holds it there when the at least one pivoting flap 480 is on the upper side wall 411 and only gravity brings the at least one pivoting flap 480 into its open position and holds it there when the at least one pivoting flap 480 is on the lower side wall 412. In other words, the cooling module 22 does not include any mechanical component or any control device configured to actively control the opening and / or closing of the pivoting flap 480. Thus, the pivoting flap 480 is always subject to gravity, but when the motor vehicle 10 moves at a sufficiently high speed, the air flow F passing through the cooling module 22 can exert pressure on the pivoting flap 480, causing the latter to move from its closed position to its open position. In this case, the air flow F passes through the at least one opening O3 in the upper side wall 411 or in the lower side wall 412 opposite the curved outer wall 440 of the volute 44. When the tangential flow turbine 30 is operating, a vacuum is created upstream of the turbine 32 , which passively closes the pivoting flap 480 when the pivoting flap 480 is positioned on the lower wall 412 .
[0078] like Figures 4 to 9 As shown, the volute 44, more specifically, its curved outer wall 440, includes at least one opening O4 and at least one shut-off device 43 for closing the opening O4. Figures 4 to 9 In the example shown, the curved outer wall 440 is formed by the upper side wall 411 of the collector housing 41, since the volute 44 is in a high position. The shut-off device 43 is movable between an open position, in which the air flow F can pass through the opening O4, and a closed position, in which the shut-off device 43 closes the opening O4.
[0079] The presence of such an opening O4 and its shut-off device 43 makes it possible to facilitate the discharge of the air flow F by limiting pressure drops and aerodynamic resistance when the vehicle 10 is in motion and the tangential flow turbine 30 is stationary.
[0080] according to Figures 4 to 7 In the first embodiment shown, the shut-off device 43 comprises a pivoting flap 490 having a pivoting axis situated on one side of the opening O4 in the curved outer wall 440. The pivoting flap 490 can thus be an end-suspended flap.
[0081] The pivot axis of the pivoting flap 490 can be positioned in particular on the upper side of the opening O4. "Up" here means the side of the opening O4 that is positioned on the top of the opening O4, that is to say the roof closest to the vehicle 10 in the installed state. This positioning of the pivot axis of the pivoting flap 490 makes it possible for the pivoting flap 490 to be "free" or "passive", in the sense that only gravity brings the pivoting flap 490 into its closed position and keeps it there. In other words, the cooling module 22 does not include any mechanical components or any control device configured to actively control the opening and / or closing of the at least one pivoting flap 490. Therefore, the pivoting flap 490 is always subject to gravity, but when the motor vehicle 10 moves at a sufficiently high speed, the air flow F passing through the cooling module 22 can exert pressure on the pivoting flap 490, so that the pivoting flap 490 moves from its closed position to its open position. In this case, the air flow F passes through the opening O4 in the curved outer wall 440.
[0082] exist Figure 4 and 5 In the example illustrated in , the curved outer wall 440 comprises three lines along the Y axis, each line comprising four openings O4 . Of the three lines, only the opening O4 closest to the motor 31 is shown with a pivoting flap 490 .
[0083] The pivoting flap 490 may in particular comprise an inner wall of a curved shape so as to conform in the closed position to the curvature of the curved outer wall 440. This in particular makes it possible to have an inner surface of the volute 44 that is as smooth as possible in order to facilitate the circulation of the air flow F when the tangential flow turbine 30 is in operation and when the pivoting flap 490 is in the closed position, as shown in FIG. Figure 6 shown.
[0084] according to Figure 8 and Fig. 9 In the second embodiment shown, the shut-off device 43 may include an extension 441 that protrudes from the curved outer wall 440 toward the outside of the collector housing 41 and at least partially surrounds the opening O4. The extension 441 may in particular include an upper wall 441a extending the upper side of the opening O4 and two side walls extending the lateral sides of the opening O4. The extension 441 more specifically extends the opening O4 toward the air outlet. The air outlet may in particular be planar so as to cooperate with the shut-off device 43. The shut-off device 43 for its part includes a pivoting flap 490' that pivots around a pivot axis located on the extension 441 so as to close its air outlet in the closed position and open outwards in the open position.
[0085] The pivot axis of the pivoting flap 490' can be positioned in particular on the upper wall 441a of the extension 441. "Upper" here means the wall of the extension 441 positioned on the top of the extension 441, that is to say the roof closest to the vehicle 10 in the installed state. Such positioning of the pivot axis of the pivoting flap 490' makes it possible for the pivoting flap 490' to be "free" or "passive", in the sense that only gravity brings the pivoting flap 490' into its closed position and keeps it there. In other words, the cooling module 22 does not include any mechanical components or any control device configured to actively control the opening and / or closing of the pivoting flap 490'. Therefore, the pivoting flap 490' is always subject to gravity, but when the motor vehicle 10 moves at a sufficiently high speed, the air flow F passing through the cooling module 22 can exert pressure on the pivoting flap 490' so that the pivoting flap 490' moves from its closed position to its open position. In this case, the air flow F passes through the opening O4 in the curved outer wall 440 .
[0086] Whether for Figures 4 to 7 The first embodiment is still for Figure 8 and Fig. 9 In a second embodiment, in the open position, one or more shut-off devices 43 may in particular have a height below the maximum height of the curved outer wall. This makes it possible to limit the overall space occupied by the cooling module 22 in the motor vehicle. For this purpose, the opening O4 and / or the shut-off device 43 may include a stop (not shown) that limits the travel of the shut-off device 43 in the open position.
[0087] In the closed position, the closure of the opening O4 can be particularly fluid-tight. For this purpose, the collector housing 41 can include sealing means between the opening O4 and the pivoting flaps 490, 490' in the closed position. The sealing means can be, for example, a seal (not shown) which is provided according to Figures 4 to 7 In the first embodiment, the pivoting flaps 490, 490' are arranged at the contact surface with the side of the opening O4 or according to Figure 8 and Fig. 9 The second embodiment is positioned on the pivoting flaps 490, 490' at their contact surface with the extension 441. According to an alternative, the sealing means may not be positioned on the flaps 490, 490' but directly on the side of the opening O4 according to the first embodiment or directly on the side of the air outlet of the extension 441 according to the second embodiment.
[0088] like Fig.10 and Fig.11As shown, the collector housing 41 also includes at least one stopper 60, which is configured to limit the opening angle of the at least one shut-off flap 460, 470, 480, 490, 490' in the open position. Limiting the opening angle of the flaps 460, 470, 480, 490, 490' makes it possible in particular to limit the overall space occupied by the collector housing 41 and therefore by the cooling module 22 according to the face on which the flaps are positioned.
[0089] Advantageously, and as described above and in Figures 3 to 11 As shown in the example of FIG. 4 , the guide wall 46 and / or the at least one side wall 411, 412, 413 may include a plurality of shut-off flaps 460, 470, 480, 490, 490'. The stopper 60 is configured so that each shut-off flap 460, 470, 480, 490, 490' has an opening angle specific to each shut-off flap 460, 470, 480, 490, 490'. Therefore, the opening angle of each shut-off flap 460, 470, 480, 490, 490' can be individually limited according to the structure of the receptacle in which the collector housing 41 is to be positioned and the structure of the elements surrounding the cooling module 22.
[0090] like Fig.10 and Fig.11 As shown, when the lower side wall 412 of the collector housing 41 includes at least one opening O3 and at least one shutoff flap 480, the at least one stopper 60 may be configured such that the opening angle of the shutoff flap 480 is less than or equal to 7°, preferably 5°. Such limitation of the opening angle of the shutoff flap 480 positioned on the lower side wall 412 can facilitate the shutoff flap 480 to enter the closed position when the tangential flow turbine 30 is in operation and a vacuum is generated in the collector housing 41 to close the shutoff flap 480.
[0091] according to Fig.10 and 11 In the first embodiment shown, the at least one stop 60 can be positioned on the at least one shut-off flap 460, 470, 480, 490, 490'. One or more stops 60 can be positioned on the same shut-off flap 460, 470, 480, 490, 490'. For example, the shut-off flap 460, 470, 480, 490, 490' can include two stops 60, more specifically, one stop 60 positioned at each end of its pivot axis. Other positions and other numbers of stops 60 are of course conceivable.
[0092] According to a first alternative to this first embodiment, the at least one stop 60 can be integral with the at least one shut-off flap 460 , 470 , 480 , 490 , 490 ′.
[0093] According to a second alternative, the at least one stop 60 is a component fastened to the at least one shut-off flap 460, 470, 480, 490, 490'. This makes it possible in particular to adjust the opening angle of the shut-off flap 460, 470, 480, 490, 490' simply by changing the stop 60 as required.
[0094] According to a second embodiment not shown, the at least one stopper 60 may be positioned on the at least one side wall 411, 412, 413 and / or guide wall 46 of the collector housing 41. One or more stoppers 60 may be positioned on the same side wall 411, 412, 413 and / or guide wall 46. For example, the same side wall 411, 412, 413 and / or guide wall 46 may comprise two stoppers 60, more specifically one stopper 60 positioned on each side of the openings O1, O2, O3, O4. Other positions and other numbers of stoppers 60 are of course conceivable.
[0095] According to a first alternative of this second embodiment, said at least one stop 60 may be integral with said at least one side wall 411 , 412 , 413 and / or the guide wall 46 of the collector housing 41 .
[0096] According to a second alternative of this second embodiment, the at least one stop 60 may be a component fastened to the at least one side wall 411, 412, 413 and / or the guide wall 46 of the collector housing 41. This in particular makes it possible to adjust the opening angle of the shut-off flaps 460, 470, 480, 490, 490' simply by varying the stop 60 as required.
[0097] It can thus be clearly seen that the presence of the stop 60 makes it possible to limit the opening angle of the shut-off flaps 460 , 470 , 480 , 490 , 490 ′, in particular in order to adapt to the environment surrounding the cooling module 22 in the motor vehicle 10 .
Claims
1. A collector housing (41) for a cooling module (22) of an electric or hybrid motor vehicle (10), the collector housing (41) being intended to allow an air flow (F) to pass through the collector housing, The collector housing (41) includes a tangential flow turbine (30) configured to generate the air flow (F), and the collector housing (41) further includes: - at least one side wall (411, 412, 413) forming a duct in which said air flow (F) is intended to circulate, a volute (44) configured to direct the air flow (F) towards an air outlet (22b) and wherein the tangential flow turbine (30) is positioned within the volute (44), and - a guide wall (46) for guiding the air flow (F) towards the air outlet (22b), The guide wall (46) and / or the at least one side wall (411, 412, 413) comprises at least one opening (O1, O2, O3, O4) and at least one shut-off flap (460, 470, 480, 490, 490'), the shut-off flap being mounted so as to be pivotable between a position in which the opening (O1, O2, O3, O4) is opened and a position in which the opening (O1, O2, O3, O4) is closed, It is characterized in that the collector housing (41) comprises at least one stopper (60), and the at least one stopper (60) is configured to limit the opening angle of the at least one shutoff flap (460, 470, 480, 490, 490') in the open position.
2. The collector housing (41) according to claim 1, characterized in that The at least one stopper (60) is positioned on the at least one shut-off flap (460, 470, 480, 490, 490').
3. The collector housing (41) according to claim 2, characterized in that The at least one stop (60) is integral with the at least one shut-off flap (460, 470, 480, 490, 490').
4. The collector housing (41) according to claim 2, characterized in that The at least one stopper (60) is a component fastened to the at least one closing flap (460, 470, 480, 490, 490').
5. The collector housing (41) according to claim 1, characterized in that The at least one stopper (60) is positioned on the at least one side wall (411, 412, 413) and / or the guide wall (46) of the collector housing (41).
6. The collector housing (41) according to claim 5, characterized in that The at least one stopper (60) is integral with the at least one side wall (411, 412, 413) and / or the guide wall (46) of the collector housing (41).
7. The collector housing (41) according to claim 5, characterized in that The at least one stopper (60) is a component fastened to the at least one side wall (411, 412, 413) and / or the guide wall (46) of the collector housing (41).
8. Collector housing (41) according to any one of the preceding claims, characterized in that The guide wall (46) and / or the at least one side wall (411, 412, 413) and / or the guide wall (46) include a plurality of shutoff flaps (460, 470, 480, 490, 490'), and the stopper (60) is configured so that each shutoff flap (460, 470, 480, 490, 490') has an opening angle specific to each shutoff flap (460, 470, 480, 490, 490').
9. Collector housing (41) according to any one of the preceding claims, characterized in that The collector shell (41) includes a lower side wall (412), the lower side wall (412) includes at least one opening (O3) and at least one closing flap (480), and the at least one stopper (60) is configured so that the opening angle of the at least one closing flap (480) is less than or equal to 7°.
10. A cooling module (22) for an electric or hybrid motor vehicle (10), the cooling module (22) being intended to allow an air flow (F) to pass through the cooling module (22) and comprising: a fairing (40) forming an internal duct in the longitudinal direction (X) of the cooling module (22) and inside which is located at least one heat exchanger (24, 26, 28) intended to pass the air flow (F), and - A collector housing (41) according to any one of the preceding claims, said collector housing (41) being positioned downstream of said fairing (40) in said longitudinal direction (X).