EP3969312A1 - Dispositif de fermeture d'un module de refroidissement pour vehicule automobile - Google Patents
Dispositif de fermeture d'un module de refroidissement pour vehicule automobileInfo
- Publication number
- EP3969312A1 EP3969312A1 EP20724149.8A EP20724149A EP3969312A1 EP 3969312 A1 EP3969312 A1 EP 3969312A1 EP 20724149 A EP20724149 A EP 20724149A EP 3969312 A1 EP3969312 A1 EP 3969312A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- covering skin
- rigid skeleton
- cooling module
- closing device
- skin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 83
- 239000000463 material Substances 0.000 claims abstract description 55
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- 239000004743 Polypropylene Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- -1 polypropylenes Polymers 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
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- 238000005457 optimization Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003856 thermoforming Methods 0.000 description 2
- 241000920340 Pion Species 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
Definitions
- the invention relates to the field of cooling modules for motor vehicles. It relates more particularly to cooling modules intended to be placed on the front face of a motor vehicle, for example at the level of a grille of such a vehicle.
- Such cooling modules generally include a cover defining a volume for accommodating one or more heat exchangers, as well as a propeller controlled by an electric motor in order to create, within the cooling module, a depression providing a guide of an air flow coming from the outside through the aforementioned heat exchangers.
- the propeller and the motor which controls it are generally received in a closing wall of the cooling module, a closing wall whose function is to support the aforementioned propeller and its drive motor, and of which another function is to optimize the guidance of the cooling air flow through the heat exchangers, in particular by preventing the return of hot air which has passed through the propeller in the direction of the heat exchangers.
- such a wall is generally in the form of a single piece in which are arranged, in particular, means for receiving and supporting the previously mentioned propeller and its drive motor.
- a wall is generally in the form of a single piece produced by injecting a plastic material into a mold.
- the invention relates, according to a first aspect, to a device for closing a cooling module of a vehicle.
- automobile configured to support a motorized propeller intended to guide an air flow through heat exchangers of the cooling module, characterized in that it comprises a rigid skeleton and a covering skin of the rigid skeleton, the rigid skeleton and the covering skin being made of different materials.
- the closure device according to the invention is composed of two parts produced independently and assembled on top of each other, made of different materials, so as to form, on the one hand, a rigid skeleton. and on the other hand a skin covering the rigid skeleton.
- the rigid skeleton is, for example, produced by injecting a plastic material into a mold.
- the material chosen for the production of the rigid backbone can be a material from the family of polypropylenes or polyamides. In general, this material is chosen both for its low cost, its ability to be used by injection, and its mechanical properties once shaped, in particular its rigidity. This material can be loaded with glass fibers to stiffen the structure, which increases the rigidity of the assembly but also the cost. It is thus advantageous to only need a material loaded with glass fibers on a small portion of the closure device.
- the rigid skeleton comprises a frame, the general shape of which is substantially that of a rectangular parallelepiped. More precisely, according to this example, the frame of the rigid skeleton extends mainly in a plane in which it has a substantially rectangular shape, and it has, perpendicular to this main extension plane, a small thickness compared to the dimensions of the shape rectangular above. In other words, the frame of the rigid skeleton has two long sides that are substantially parallel to each other and two short sides that are substantially parallel to each other, the long sides being substantially perpendicular to the short sides. It should be understood here, as well as in what follows, by “substantially”, that the manufacturing tolerances must be taken into account.
- the invention provides for the frame to be perforated instead of having a solid frame in which the propeller is housed. More particularly, the frame is perforated in that, within this interior space, structural elements, and where appropriate reinforcing elements, extend inside the frame with empty spaces between the structural elements.
- the shapes and dimensions of these structural and reinforcing elements are defined by digital modeling to give the rigid skeleton its properties, in particular its mechanical rigidity.
- the interior space defined by the large and small sides of the frame of the rigid skeleton is an empty space within which extend the structural elements and the previously mentioned reinforcing elements, defined by digital modeling.
- certain structural elements and / or reinforcing elements arranged in the interior space delimited by the frame of the rigid skeleton contain a more or less large amount of material. Furthermore, some structural elements and / or reinforcing elements extend from the large and / or small sides of the frame, other structural elements and / or reinforcing elements extending, within the interior space previously defined, from other structural and / or reinforcing elements. In addition, certain structural elements and / or reinforcing elements have a function of receiving and supporting components of the cooling module, while others mainly play a role in the rigidity of the rigid skeleton.
- a "structural element” will be designated as an element arranged within the aforementioned interior space and mainly configured to receive and / or to support a component of the cooling module equipped with the closure device according to FIG. invention, and an element arranged within the interior space defined above and mainly configured to give the rigid skeleton its mechanical properties, in particular its rigidity, will be designated as “reinforcing element”.
- the functionality of the elements structural elements and reinforcing elements are not mutually exclusive, and that, for example, a structural element can contribute to giving the rigid skeleton its mechanical properties, in particular its rigidity.
- the rigid skeleton comprises a first annular ring, the shapes and dimensions of an outline of which are substantially identical, except for manufacturing tolerances, to those of the motorized propeller configured to guide a flow of cooling air through it. 'cooling module heat exchangers.
- the first annular ring is advantageously connected to the frame of the rigid skeleton by a plurality of reinforcing elements.
- the rigid skeleton also comprises a second annular ring configured to receive and support a drive motor of the aforementioned propeller.
- the aforementioned first annular ring and the second annular ring are substantially cylindrical, concentric, and a diameter of the second annular ring is less than the diameter of the first annular ring.
- the first annular ring and the second annular ring are connected to each other by a set of structural elements, for example by several bars which extend substantially radially relative to the axis of the one or the other of the annular rings.
- the main function of the covering skin of the closure device according to the invention is to close off the interior space defined above, that is to say at least partially the interior of the frame not occupied by the reinforcing elements or structural, and therefore prevent air recirculation after its suction by the motorized propeller by having a reduced weight compared to the use of the material used to form the reinforcing or structural elements.
- the covering skin therefore advantageously has shapes and dimensions complementary to those of the rigid skeleton, in such a way that it can be pressed against the latter by closing off the interior space defined above.
- the covering skin of the closure device according to the invention is a thin membrane, made of a plastic material chosen, in particular, for its low cost and for its mechanical properties, among which, as by way of non-exhaustive examples, its suitability for thin-thickness forming, its mechanical resistance in the presence of an air flow and its elasticity.
- the covering skin is produced by thermoforming, for example of a material from the polypropylene family.
- a thickness of the covering skin is less than one millimeter.
- the cover skin has an opening configured to allow passage of air to the cooling module propeller.
- the covering skin comprises an opening whose shapes and dimensions are complementary to those of the aforementioned helix. This makes it possible to avoid any passage of air, in particular air recirculating towards the heat exchangers, around the aforementioned propeller and, therefore, any loss of cooling efficiency.
- the opening arranged in the covering skin has shapes and dimensions complementary to those of the first annular ring. More specifically, the shapes and dimensions of the aforementioned opening are defined to allow the covering skin to be hooked onto the aforementioned first annular ring.
- the rigid skeleton comprises at least one fixing member configured to retain the covering skin.
- the covering skin is an element of the closure device according to the invention distinct from the rigid skeleton and it is attached to the latter by mechanical means provided for this purpose.
- the covering skin is substantially flat and extends along a plane substantially parallel to the main extension plane of the frame of the rigid skeleton.
- the invention thus achieves the aim it had set itself, on the one hand, by producing a lightened rigid skeleton and, on the other hand, by adding to this rigid skeleton, a skin thin and light covering, the rigid skeleton and the covering skin being made of different materials.
- the definition of the structural elements and of the reinforcing elements of the rigid skeleton makes it possible to give the closure device according to the invention its mechanical functions, while achieving both material gain and weight gain, and the covering skin contributes to further lighten the device while retaining its functionalities.
- the material savings that it allows also result in savings in the cost of purchasing the raw materials necessary for the production of such a device. closing.
- the use of material loaded with glass fibers can be concentrated in the areas serving to support the motorized propeller and the other areas having only a role of closing to the air flow are carried out. by a less heavy and less expensive material.
- the invention may also exhibit one or more of the following characteristics, taken separately or in combination:
- a member for fixing the covering skin to the rigid skeleton comprises a pin on which the covering skin is fixed.
- the rigid skeleton comprises, extending substantially perpendicular to its main plane of extension, at least one pin, for example cylindrical, configured to pierce the covering skin when the latter is pressed against the skeleton. and to retain it.
- the attachment of the covering skin on such a pin is effected by forcibly inserting the latter onto the latter, until the covering skin is pierced.
- such a pin may include a body projecting from the skeleton and a head disposed at the free end of the body and having larger dimensions than the body, the head thus being configured to retain the covering skin once it has been removed. breakthrough.
- the head can be inserted on the pin once the covering skin has been pierced, or it can be an integral part of the pin: thanks to its elasticity, the covering skin, after having been pierced by the head of the pin , retracts around said pin.
- a pin can be either arranged on the frame of the rigid skeleton, or on one or more structural elements or reinforcing elements thereof.
- the presence of one or more pins as they have just been described does not exclude the use of other types of means for fixing the covering skin on the rigid skeleton, such as that, for example, riveting or welding, for example by ultrasound.
- the covering skin is made up of several different materials.
- the covering skin is not "mono-material".
- the term “mono-material” is understood here to mean a covering skin made entirely from the same material, whether this material is obtained from a single component or from a mixture of different constituents.
- a covering skin made up of several distinct materials therefore comprises different regions, each of which consists of a specific material, these different regions being assembled together.
- the composition of the covering skin varies continuously from one region to another of the latter. In other words, from one side of the frame to the other, the materials used to form the covering skin exhibit a physical property which changes gradually.
- the covering skin is formed of a plurality of distinct elements assembled together, such as a patchwork.
- these distinct elements can be assembled by welding, by gluing, or by any other appropriate mechanical or physico-chemical means.
- different means of fixing the covering skin to the rigid skeleton can be implemented in different regions of the latter, in order to guarantee perfect holding of the covering skin against the rigid skeleton.
- the use of several different materials for the realization of the covering skin makes it possible, for example, to modulate the mechanical and / or acoustic and / or thermal properties of this skin depending on the regions of the closure device according to the invention, in particular to improve its performance.
- the covering skin comprises at least one window configured to receive or form a dynamic shutter for regulating a flow of cooling air through the closing device, the dynamic shutter being inserted in a tilting frame formed by a plurality of structural elements of the rigid skeleton.
- Such dynamic shutters movable in rotation about an axis parallel to the main plane of extension of the rigid skeleton, are configured to adapt the quantity of cooling air conveyed through the heat exchangers of the cooling module to the driving conditions of the vehicle. More precisely, when the vehicle is moving at high speed in a steady state, the air flow generated by the movement implies that the motorized propeller is not set in rotation: it may be desired to increase the passage surface d. air through the opening of the dynamic shutters, so that the dynamic shutters can be kept closed or left open under the effect of the pressure of the air flowing through the cooling module.
- the rotation of the propeller ensures an air passage through the cooling module so that the air pressure on the wall forming the closure device can not be sufficient to open the dynamic shutters: in this case, the shutters can be left closed or be forced to open by appropriate piloting.
- the rigid skeleton of the closure device comprises a plurality of structural elements configured to receive a plurality of tilting frames, each tilting frame being itself configured to receive a dynamic flap. More precisely, each of these tilting frames advantageously comprises, on the one hand, reception means and, on the other hand, means of articulation of such a dynamic flap around its axis. rotation in order to be able to modify the angular position of this dynamic flap with respect to the main extension plane of the rigid skeleton.
- the covering skin comprises at least one cutout configured to define a dynamic flap for regulating a flow of cooling air through the closure device. That is to say that, according to this characteristic, such a dynamic shutter is an integral part of the covering skin, and it is cut out in the latter.
- the cutout arranged in the covering skin is advantageously defined by three substantially linear slots, with the production tolerances close: two of these linear slots are substantially parallel to each other, and they are joined at one of their ends by another linear slot which is substantially perpendicular to them.
- These three substantially linear slots thus define, in the covering skin, three sides of a rectangle formed by the dynamic shutter, the fourth side of the rectangle thus defined remaining uncut in the covering skin.
- the dynamic flap thus defined is attached to the covering skin by the fourth side of the aforementioned rectangle.
- the cutting of the aforementioned linear slits is carried out by punching of the covering skin.
- the covering skin comprises at least one thinned region configured to form an articulation hinge of the dynamic flap as defined above.
- the aforementioned thinned region is arranged in the region of the covering skin in which the dynamic flap described above is attached to the covering skin.
- the aforementioned thinned region is therefore that in which said fourth side extends.
- This local thinning then results in an increase in the rotational mobility of the dynamic flap around the axis formed by this fourth side.
- this local thinning can be supplemented by local perforations in order to increase the mobility of the dynamic flap arranged in the covering skin.
- the invention thus makes it possible to simplify the production of dynamic shutters such as previously mentioned.
- the covering skin is made of a material from the polypropylene family
- the rigidity of the material forming the covering skin is important: this results in rigidity of the hinge produced by local thinning of the covering skin, and the dynamic flaps as described above preferably remain closed.
- the quantity of cold air capable of being sucked in and passing through the heat exchangers is then small.
- the aforementioned hinge heats up and the dynamic shutter opens spontaneously under the combined effect of the increased flexibility of the material with the temperature and of the configuration of the hinge. This therefore makes it possible to reduce, or even eliminate, the need for controlling the angular position of such dynamic flaps relative to the main extension plane of the rigid skeleton. This therefore results in additional simplification and weight savings, with equal cooling performance.
- the invention extends to a cooling module intended to be placed on the front face of a motor vehicle, the cooling module comprising a motorized propeller configured to convey a flow of cooling air through it.
- a motorized propeller configured to convey a flow of cooling air through it.
- 'at least one heat exchanger characterized in that it comprises a closing device as has just been described.
- the main function of the closure device is to force the air to pass through the motorized propeller and to prevent recirculation of hot air in the heat exchangers, the motorized propeller having the function of forcing the air. 'routing this air through one or more heat exchangers of the cooling module.
- the covering skin of the closing device as described above is placed between the rigid skeleton of the closing device and a heat exchanger of the cooling module.
- the closure device is arranged, in the cooling module according to the invention, in such a way that the suction resulting from the rotation of the motorized propeller has the effect of pressing the covering skin against the rigid skeleton, thus helping to strengthen the hold of the covering skin on the latter.
- the covering skin is placed inside the cooling module relative to the skeleton. This has the effect of limiting as much as possible, or even completely eliminating, any possible lateral air leakage which could result from an imperfect plating of the covering skin on the rigid skeleton.
- FIG.i is a schematic exploded perspective view of the main components of a cooling module according to the invention.
- FIG.2 is a schematic exploded perspective view of the rigid skeleton and of the covering skin of a closure device according to the invention
- FIG.3 is a schematic perspective view of a covering skin made of several different materials
- FIG.4 is a schematic view of a covering skin in which are arranged several dynamic shutters for regulating a flow of cooling air, and
- FIG.5 is a schematic view of a detail of an articulation hinge of such a dynamic shutter on the covering skin.
- FIG. 1 various elements which can be included in a cooling module 500 intended to be integrated into an engine compartment on the front face of a motor vehicle.
- a cooling module can in particular comprise a device for regulating the air inlet in the cooling module, this regulating device comprising one or more air inlet grilles 501, one or more heat exchangers 502. stacked among which by way of non-limiting example a condenser and a radiator, and at least one motor-fan unit comprising a propeller 503 driven by a motor 504.
- the cooling module further comprises a shroud configured to form a housing for at least the heat exchangers when the module is assembled, the air inlet grilles being able in particular to be attached to this shroud.
- the fairing here comprises side walls 101 and a transverse wall 102 forming a closure device 100 of the cooling module according to the invention.
- the cooling module is configured to facilitate passage of air through the air inlet grille (s) 501 and the heat exchanger (s) 502 of the cooling module 500, so as to perform an exchange of calories with a fluid circulating in the heat exchanger (s) 502.
- the drive by the motor of the propeller 503 makes it possible to suck in fresh air and force it to pass through the exchangers, so as to increase the efficiency of the cooling obtained , when this air intake is no longer sufficient, for example in situations in which the vehicle is stationary or at least idling.
- the flow of cooling air brought through the cooling module, and the heat exchanger (s) 503, where appropriate by the rotation of the propeller 502, is represented by the arrow F in FIG. 1.
- the closure device 100 and more particularly the transverse wall 102 arranged across the path of the air flow, is configured to receive the propeller 503, substantially in the center of the transverse wall in the example illustrated in FIG. 1.
- the closure device 100 comprises a housing 104 for receiving the motorized propeller 503, the dimensions of the circular-shaped housing being slightly greater than those of the external diameter of the powered propeller to allow the latter to s' register in the housing and be mobile in rotation.
- An annular ring 131 is disposed substantially in the center of the housing 104 to form a support for the drive motor 504 of the propeller, housed in a central bell 505 of this propeller.
- the annular ring 131 is held by a set of tie rods 132 extending substantially radially with respect to an axis of revolution of the annular ring.
- the closure device 100 furthermore comprises a plurality of dynamic flaps 106 movable to regulate a quantity of air passing through the cooling module. According to the example more particularly illustrated in FIG. 1, the closing device 100 comprises four dynamic flaps 106.
- the closure device 100 is particular in that it comprises a rigid skeleton and a covering skin fixed to the rigid skeleton. Only the covering skin 2 is visible and the fixing members 16 of the covering skin on the skeleton are shown by way of example.
- This closing device aims to provide a lightweight closing device which has functions, on the one hand, for receiving and supporting the motorized propeller and its motor. drive, and, on the other hand, management of the flow of cooling air passing through the cooling module.
- FIG. 2 schematically shows, in perspective, the components of a closure device 100 according to the invention.
- the closure device 100 comprises a rigid skeleton 1 and a covering skin 2 attached by fixing to the rigid skeleton 1.
- the rigid skeleton 1 is advantageously produced by injection into a mold of a plastic material such as, by way of nonlimiting example, a material from the family of polypropylenes or polyamides.
- the rigid skeleton 1 comprises a frame 10 whose sides 11, 12 together delimit an interior space 110 within which extend, with reference to the previously defined names, structural elements 13 and reinforcing elements 14. More precisely, the skeleton rigid 1 extends mainly in a plane 600 perpendicular to the path of the air flow F, and the frame 10 has two long sides 11 substantially parallel to each other, with manufacturing tolerances close, and two short sides 12 substantially parallel to each other, except for manufacturing tolerances, the short sides 12 joining together two by two the ends of the long sides 11 while being substantially perpendicular to the latter.
- the frame 10 has substantially the shape of a rectangular parallelepiped, the thickness of which, measured in a direction perpendicular to the main extension plane 600 defined above, is small compared to the dimensions of the large and small sides 11, 12, mentioned above.
- the interior space 110 delimited by the frame 10, is a hollow space which, apart from the structural elements 13 and the aforementioned reinforcing elements 14, does not contain any material.
- the rigid skeleton 1 therefore has a lower weight than a single piece of the same general shapes and dimensions.
- the shapes and dimensions of the structural elements 13 and of the reinforcing elements 14 which extend within the interior space 110 can be optimized by digital modeling.
- the rigid skeleton 1 comprises a first substantially cylindrical annular ring 130 and a second substantially cylindrical annular ring 131, arranged within the interior space 110.
- the first annular ring 130 and the second annular ring 131 have a common axis 150 substantially perpendicular to the main extension plane 600 of the frame 10.
- the diameter of the first annular ring 130 is greater than the diameter of the second annular ring 131. More precisely, the diameter of the first annular ring 130 is substantially equal to an outer diameter of the motorized propeller 503 defined above, not shown in the figure. FIG. 2, so that the blades of the motorized propeller can rotate with their free end closest to the wall defining this annular ring. And the diameter of the second annular ring 131 is defined so that the latter can receive and support the drive motor 504 of the propeller 503, not shown in FIG. 2. It is understood that with reference to the previously defined names, the first annular ring 130 and the second annular ring 131 form part of the structural elements 13 of the rigid skeleton 1.
- the first annular ring 130 is connected to the long sides 11 and to one of the short sides 12a of the frame 10 by a plurality of reinforcing elements 14, and it is connected to the second annular ring 131 by a plurality of tie rods 132 disposed substantially radially around the common axis 150 of the annular rings 130, 131.
- the first annular ring 130 and the second annular ring 131 are connected to one another by four substantially radial tie rods 132.
- first annular ring 130 and the second annular ring 131 are arranged, within the interior space 110 previously defined, closer to one of the short sides 12a of the frame 10 than on the other short side 12b of this frame.
- the rigid skeleton 1 may comprise a plurality of imperceptibly parallelepipedal tilting frames whose long sides are substantially parallel to the long sides 11 of the frame 10 and whose short sides are substantially parallel to the short sides 12 of the frame 10.
- each of the tilting frames 133 is configured to receive a dynamic flap, not shown in FIG. 2, the role of which is to regulate a flow of cooling air. Movable in rotation around an axis substantially parallel to the main extension plane 600 of the frame 10, such dynamic shutters can take different angular positions with respect to the aforementioned main plane 600.
- each tilting frame 133 is, with reference to the previously defined names, a structural element of the rigid skeleton 1.
- the rigid skeleton 1 comprises seven tilting frames 133 mainly arranged in the interior space 110 between the first annular ring 130 and the small side 12b of the frame 10 opposite the small side 12a to which this first annular ring 130 is closest.
- the tilting frames 133 are connected to each other and to the sides 11, 12b of the frame 10 by a plurality of reinforcing elements 14, the shapes and dimensions of which are, as indicated above, optimized by digital modeling.
- the frame 10 of the rigid skeleton 1 also comprises a certain number of elements 15 which can allow on the one hand the fixing of the closure device in a cooling module 500 such as that illustrated in FIG. 1 and on the other hand the fixing of 'other elements of the cooling module, such as the air intake grilles, on this closure device.
- FIG. 2 also shows schematically, and at a distance from the rigid skeleton 1, the covering skin 2 which, once assembled with the rigid skeleton 1 forms the closure device 100 according to the invention.
- the covering skin 2 is a membrane, a maximum thickness of which is of the order of a millimeter, and it is made of a pastic material, for example by thermoforming.
- the covering skin 2 is made of a material different from that used to make the rigid skeleton. This material is chosen in particular in that it allows a thin design of a few millimeters.
- the covering skin 2 has substantially complementary shapes and dimensions to those of the frame 10 of the rigid skeleton 1, such that it can entirely cover a main face thereof parallel to the main extension plane 600 defined above. According to the example more particularly illustrated by FIG. 2, the covering skin 2 therefore has a generally substantially rectangular shape having two large sides 2a and two small sides 2b, the dimensions of which are substantially identical to those of the sides of the frame 10 described above. .
- the covering skin 2 comprises a substantially circular opening 20 whose shapes and dimensions are substantially complementary to those of the first annular ring 130 previously described, as well as a plurality of rectangular windows 21 whose shapes and sizes. dimensions are complementary to those of the tilting frames 133 described above.
- the covering skin 2 when the covering skin 2 is placed on the rigid skeleton 1, it closes the interior space 110, previously defined, of the latter, with the exception of the interior of the first annular ring 130 corresponding to the circular opening 20 and with the exception also of the tilting frames corresponding to the rectangular windows 21.
- a flow of cooling air for example illustrated by the arrow F in FIG. 2, approaching the closure device 100, will be channeled by the covering skin 2, on the one hand, through the circular opening 20, towards the motorized propeller 503 previously described, not shown in FIG. 2 and, on the other hand, through rectangular windows 21, towards dynamic regulation shutters received in the tilting frames 133.
- the covering skin 2 forms a sealing of the space interior 110 previously defined, with the exception of the regions of this interior space corresponding to the openings and windows 20, 21, previously defined, through which the flow of cooling air F can be conveyed to the motorized propeller.
- the covering skin 2 is in particular fixed to the rigid skeleton 1 by means of substantially cylindrical pins 16, 17 arranged on the rigid skeleton 1 and forming fixing members configured to cooperate with orifices 22, 23 formed in the covering skin 2. More precisely, each pin 16, 17 extends substantially perpendicular to the main extension plane 600 of the frame 10 and is configured to pass through the covering skin 2 while being engaged in a corresponding orifice 22, 23.
- the pins forming a fixing member are distinguished by first pins 16 and second pins 17, the first pins having a first diameter of greater value than the second diameter of the second pins.
- the orifices capable of being crossed by the pins are distinguished by first orifices 22 and second orifices 23.
- the first orifices 22 are formed in the covering skin 2 before fixing the covering skin on the rigid skeleton 1 and they have a diameter slightly less than the diameter of a first corresponding pin 16, so that the insertion of the pin 16 into the orifice 22 requires a force.
- the second orifices 23 are illustrated in FIG.
- the function of these different pawns can thus differ in that the second pawns 17 have an exclusively function of fixing the covering skin, by tearing and adhesion of the skin on each second pawn, while the first pions 16 have a function of fixing by similar adhesion as well as a positioning function, the operator having to make the first pins 16 cooperate with the first holes 22 to ensure the correct positioning of the covering skin 2 with respect to the rigid skeleton 1.
- the pins 16, 17 may include a head configured to retain the covering skin 2 against the rigid skeleton 1.
- a pin comprises a body projecting from the skeleton and a head disposed at the free end of the body and having larger dimensions than the body. Once the pin has passed through the covering skin, the head retains the covering skin facing the rigid skeleton while preventing the skin from coming off.
- the head can in particular be attached to the first pegs after plating the covering skin, and it may form an integral part of the second pegs by helping to locally tear the skin when the latter is brought against the skeleton, the covering skin being suitable. after having been pierced by the head of the pin to retract around said pin thanks to its elasticity.
- the covering skin 2 can be fixed to the rigid skeleton by other means such as, by way of nonlimiting examples, by ultrasonic welding or by riveting.
- the invention provides that, in the cooling module 500, the closure device 100 is arranged in such a way that a flow of cooling air such as that illustrated by the arrow F, generated by the rotation of a motorized propeller 503 as previously mentioned, has the effect of pressing the covering skin 2 against the rigid skeleton 1 in order to increase the cohesion between these two elements and in order to avoid any possible air leakage resulting from an imperfect plating of the covering skin 2 against the rigid skeleton 1.
- the covering skin is arranged upstream of the rigid skeleton by in relation to the direction of circulation of the air flow F.
- the covering skin 2 of the closing device 100 is placed between the rigid skeleton 1 of this closing device 100 and the heat exchangers 502 of the cooling module 500.
- the covering skin 2 can be fixed by welding on a periphery of the first annular ring 130, while first pins 16 as described above will be used to guide the positioning of the covering skin with respect to the frame of the rigid skeleton 1 and to fix this covering skin 2 on the rigid skeleton 1 in the region of the latter situated between the aforementioned first annular ring 130 and the tilting frames 133 previously described.
- the covering skin 2 is made of a material different from that used to produce the rigid skeleton 1.
- FIG. 3 illustrates a particular embodiment of the invention, in which the covering skin 2 is itself made up of different distinct materials, represented respectively by a hatch pattern different from that of the others.
- the covering skin 2 comprises a first region 200 made from a first material, a second region 201 made from a second material distinct from the first material, and a third region 202 made from a third material distinct from the first material and from the aforementioned second material.
- the covering skin 2 is therefore in the form of a patchwork of three distinct elements associated with one another, for example, by ultrasonic welding.
- the materials chosen to produce the different regions of such a covering skin 2 may have mechanical and / or acoustic and / or thermal properties that are different from each other. Indeed, as shown in Figure 3, the surfaces of the regions 200, 201, 202, previously defined have different dimensions, and these different regions can be sources of different vibrations when the closure device 100 is subjected to a flow of air of cooling such as that represented by the arrow F in FIG. 1 or 2. The choice of different materials for the production of these different regions of the covering skin 2 can therefore make it possible to reduce any noise generated by the closure device 100 within the cooling module 500.
- FIGS. 4 and 5 illustrate another embodiment of the covering skin 2 of the closure device 100 according to the invention, in which dynamic control flaps such as previously mentioned are arranged in the covering skin 2.
- Figure 4 shows schematically in perspective a cover skin 2 in which are arranged several dynamic shutters 24 for regulating a cooling air flow
- Figure 5 schematically shows a detail of an embodiment of such dynamic shutter 24.
- a dynamic flap 24 is defined, in the covering skin 2, by three linear slots, respectively 240a, 240b, 240c. More precisely, according to the example illustrated in FIG. 4, a first linear slot 240a, substantially parallel to a large side 2a of the covering skin 2, is arranged in the latter, a second linear slot 240b and a third linear slot 240c being substantially perpendicular to the first slot 240a, each of the slots 240b, 240c being arranged from one end of the first slot 240a. According to various embodiments, the linear slots 240a, 240b, 240c can be produced by cutting or by punching the covering skin.
- the lengths of the second slot 240b and of the third slot 240c are substantially identical, except for manufacturing tolerances, and they are less than the length of the first linear slot 240a.
- the linear slots 240a, 240b, 240c therefore release, in the covering skin 2, a substantially rectangular shutter 24 free to move relative to the covering skin 2 by the three sides 24a, 24b, 24c, respectively released by the linear slots 240a, 240b, 240c.
- Such mobility is also made possible by virtue of the small thickness of the covering skin 2 and the elasticity of the material which constitutes it.
- FIG. 5 shows a detail of an embodiment of a dynamic shutter 24 as has just been described.
- a part of the covering skin 2 as well as a dynamic flap 24 delimited, on the one hand, by its three sides 24a, 24b, 24c, by which the dynamic flap 24 is free to move relative to to the covering skin 2, and, on the other hand, by its fourth side 24d via which it is attached to the covering skin 2.
- the covering skin 2 is thinned in the region of the fourth side 24d of the dynamic shutter 24. More precisely, according to this example, the fourth side 24d of the dynamic shutter is materialized, on each face of the covering skin 2, by a groove, respectively 24od, 24od ', which face each other in a direction perpendicular to the surface of the covering skin 2. The thickness of the covering skin 2 is therefore thinned, in the region of the fourth side 24d of the dynamic flap 24, by the presence of the grooves 24od, 24od '.
- the invention here makes it possible to reduce, or even eliminate, the need for piloting such dynamic shutters, correspondingly reducing the costs of producing the cooling module 500.
- the invention therefore makes it possible, by simple and inexpensive means, to reduce the weight of a closing device 100 of a cooling module 500 intended to be placed on the front face of a motor vehicle.
- a closing device 100 of a cooling module 500 intended to be placed on the front face of a motor vehicle.
- the invention also allows simple and inexpensive regulation of an air flow. cooling conveyed through such a cooling module 500.
- the invention cannot however be limited to the means and configurations described and illustrated, and it also applies to all equivalent means or configurations and to any combination of such means.
- the invention applies whatever the shape and dimensions of the rigid skeleton 1 and of the covering skin 2, insofar as the latter covers the rigid skeleton by presenting the functionalities described in this document, in particular by being made of a material different from that used to produce the rigid skeleton.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1905054A FR3095986B1 (fr) | 2019-05-15 | 2019-05-15 | Dispositif de fermeture d'un module de refroidissement pour véhicule automobile |
PCT/EP2020/063228 WO2020229492A1 (fr) | 2019-05-15 | 2020-05-12 | Dispositif de fermeture d'un module de refroidissement pour vehicule automobile |
Publications (1)
Publication Number | Publication Date |
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EP3969312A1 true EP3969312A1 (fr) | 2022-03-23 |
Family
ID=67587872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20724149.8A Pending EP3969312A1 (fr) | 2019-05-15 | 2020-05-12 | Dispositif de fermeture d'un module de refroidissement pour vehicule automobile |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3969312A1 (fr) |
CN (1) | CN114007885A (fr) |
FR (1) | FR3095986B1 (fr) |
WO (1) | WO2020229492A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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FR3137440A1 (fr) * | 2022-06-30 | 2024-01-05 | Valeo Systemes Thermiques | Volet d’obturation pour buse de groupe moto-ventilateur a profil constant |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10257838B4 (de) * | 2002-12-11 | 2014-03-13 | Robert Bosch Gmbh | Belüftungsmodul für einen Kühler einer Brennkraftmaschine |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57173519A (en) * | 1981-04-21 | 1982-10-25 | Nissan Motor Co Ltd | Radiator shroud |
JP4464659B2 (ja) * | 2003-11-11 | 2010-05-19 | カルソニックカンセイ株式会社 | ラジエータサポート |
DE102005009203A1 (de) * | 2005-02-25 | 2006-08-31 | Behr Gmbh & Co. Kg | Vorrichtung zur Beeinflussung eines Luftstroms |
US7669557B2 (en) * | 2006-02-08 | 2010-03-02 | Toyota Jidosha Kabushiki Kaisha | Cooling device for vehicle |
US8128358B2 (en) * | 2006-09-22 | 2012-03-06 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Low mass fan shroud with integrated membrane barrier |
DE202011003858U1 (de) * | 2011-03-11 | 2011-08-22 | Wirthwein Ag | Lüfterzarge |
KR101497327B1 (ko) * | 2012-08-27 | 2015-03-02 | 한라비스테온공조 주식회사 | 팬 쉬라우드 |
KR101890842B1 (ko) * | 2012-12-26 | 2018-08-23 | 한온시스템 주식회사 | 쉬라우드 |
CN203867690U (zh) * | 2014-05-28 | 2014-10-08 | 江苏意航汽车部件技术有限公司 | 一种可嵌置水壶的护风罩 |
CN205344511U (zh) * | 2016-01-08 | 2016-06-29 | 浙江吉利汽车有限公司 | 电动车前端冷却模块 |
CN105508015B (zh) * | 2016-01-22 | 2020-04-24 | 上海博泽电机有限公司 | 一种低旋转噪声的汽车发动机冷却风扇 |
CN108252789A (zh) * | 2017-11-20 | 2018-07-06 | 观致汽车有限公司 | 减振冷却风扇安装支架及应用其的冷却系统、汽车 |
CN107781024A (zh) * | 2017-11-20 | 2018-03-09 | 观致汽车有限公司 | 减振冷却风扇系统及应用其的汽车 |
-
2019
- 2019-05-15 FR FR1905054A patent/FR3095986B1/fr active Active
-
2020
- 2020-05-12 WO PCT/EP2020/063228 patent/WO2020229492A1/fr unknown
- 2020-05-12 CN CN202080046065.3A patent/CN114007885A/zh active Pending
- 2020-05-12 EP EP20724149.8A patent/EP3969312A1/fr active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10257838B4 (de) * | 2002-12-11 | 2014-03-13 | Robert Bosch Gmbh | Belüftungsmodul für einen Kühler einer Brennkraftmaschine |
Also Published As
Publication number | Publication date |
---|---|
FR3095986A1 (fr) | 2020-11-20 |
WO2020229492A1 (fr) | 2020-11-19 |
FR3095986B1 (fr) | 2023-04-14 |
CN114007885A (zh) | 2022-02-01 |
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