EP4178821A1 - Dispositif de regulation d'un flux d'air d'un vehicule automobile - Google Patents
Dispositif de regulation d'un flux d'air d'un vehicule automobileInfo
- Publication number
- EP4178821A1 EP4178821A1 EP21729511.2A EP21729511A EP4178821A1 EP 4178821 A1 EP4178821 A1 EP 4178821A1 EP 21729511 A EP21729511 A EP 21729511A EP 4178821 A1 EP4178821 A1 EP 4178821A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- regulating device
- frame
- hinge
- panel
- limiting embodiment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 44
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 12
- 238000005304 joining Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 230000000295 complement effect Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
- B60K11/085—Air inlets for cooling; Shutters or blinds therefor with adjustable shutters or blinds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Definitions
- the present invention relates to a device for regulating a flow of air circulating within a heat exchanger for a vehicle. It also relates to a method of manufacturing such a regulating device. It finds a particular but non-limiting application in motor vehicles.
- a device for regulating an air flow circulating within a heat exchanger of a motor vehicle comprises:
- At least one curtain configured to move in an opening/closing direction, between a closed position blocking the passage of said air flow and an open position allowing said air flow to pass
- a frame configured to house said at least one curtain.
- Such a regulation device is most often designated by the acronym ACS from the English language expression “Active Curtain Shutter”.
- the ACS is installed on the front face of the motor vehicle, at the level of a grille of the motor vehicle, in particular at the level of the engine compartment.
- Said at least one curtain is controlled by an actuator in order to reduce the drag coefficient and also to improve the cooling and air conditioning performance of the engine.
- the open position of said at least one curtain the flow of air can circulate through the grille and participate in particular in cooling the engine of the motor vehicle.
- the closed position of said at least one curtain the air flow does not penetrate via the grille, which reduces drag and thus makes it possible to reduce fuel consumption and the emission of carbon dioxide from the engine.
- ACS therefore makes it possible to reduce energy consumption and pollution when the motor does not need to be cooled by the outside air.
- the frame comprises a front part and a rear part assembled together, the front part being upstream of the rear part in the direction of flow of the air flow.
- the front part of the frame has an edge arranged to cooperate with an edge of the rear part. These edges are assembled by fixing devices such as screws, snap devices, or glue.
- the front part and the rear part of the frame are formed by molding a plastic material. Said at least one curtain, once rolled up on itself, occupies a cylindrical space that runs along one side of the border of the front part and the rear part, while being inside the space delimited by the frame.
- a disadvantage of this state of the prior art is that it is necessary to adapt the dimensions of the regulating device according to the entry of the air flow that one wants to have in the motor vehicle on which said device of regulation will be mounted.
- the dimensions of the frame of the regulation device must be modified, it is necessary to recreate a specific tool, in particular for the molding of the front part and the rear part of the frame, with each new modification and therefore new reference of regulation device , which leads to a significant cost and a significant loss of time in the realization of a new reference.
- the present invention aims to provide a device for regulating a flow of air circulating within a heat exchanger for a vehicle which makes it possible to solve the drawback mentioned.
- the invention proposes a device for regulating a flow of air circulating within a heat exchanger for a vehicle, said regulating device comprising:
- At least one curtain configured to move in an opening/closing direction, between a closed position blocking the passage of said air flow and an open position allowing said air flow to pass
- a frame configured to house said at least one curtain, characterized in that said frame comprises:
- said regulating device may further comprise one or more additional characteristics taken alone or in any technically possible combination, among the following.
- each pan forms a female part and each joining element forms a male part or vice versa.
- each pan comprises at least one hinge so that said pan can be folded.
- said at least one hinge is a film hinge or made of a flexible material.
- said pan comprises a single hinge or two hinges.
- a pan has three sides and the single hinge extends along the middle of one of the three sides of said at least one pan.
- a pan comprises two hinges, each hinge extends along the border between two adjacent sides, one side of which connects the other two sides together.
- said frame further comprises at least one positioning device configured to position a panel relative to a junction element.
- said frame further comprises a locking device configured to lock a pan with respect to a joining element.
- said internal cavity is configured to insert a junction element in said pan.
- said positioning device is formed by a boss on said face and by a groove of a junction element which cooperates with said face.
- said positioning device is formed by a tenon on said face and by a groove of a junction element which cooperates with said face.
- said locking device is a snap device.
- each joining element is configured to assemble one side with another.
- said frame comprises at least four joining elements each configured to assemble one side with another side.
- a method of manufacturing a device for regulating an air flow intended to circulate through a heat exchanger for a vehicle comprising:
- said manufacturing method further comprises extruding at least one hinge on each side at the same time as the extrusion of each side.
- said at least one hinge is extruded with a flexible material.
- FIG. 1 is a schematic side view of a front face of a vehicle comprising a device for regulating an air flow intended to circulate through a heat exchanger of said vehicle, according to a non-limiting embodiment of the 'invention,
- FIG. 2a is a schematic front view of said regulating device of FIG. 1, said regulating device comprising two curtains in the open position and a frame delimiting a housing to house the two curtains, according to a non-limiting embodiment,
- FIG. 2b is a schematic front view of said regulating device of FIG. 1, said regulating device comprising two curtains in the closed position and a frame delimiting a housing to house the two curtains, according to a non-limiting embodiment,
- FIG. 3 is a schematic view of the frame of said regulation device of FIGS. 2 and and 2b, said frame comprising at least four sides and at least four connecting elements, according to one non-limiting embodiment,
- FIG. 4 is a schematic perspective view of part of a section of said regulating device of FIG. 3, according to a non-limiting embodiment
- FIG. 5 a schematic cross-sectional view of a panel and a junction element of said regulation device of FIG. 3, said panel comprising two hinges and two positioning elements and said junction element comprising two complementary positioning elements, according to a first non-limiting embodiment
- FIG. 6 a schematic cross-sectional view of a panel and a junction element of said regulation device of FIG. 3, said panel comprising two hinges and two positioning elements and said junction element comprising two complementary positioning elements, according to a first non-limiting embodiment variant of a second non-limiting embodiment,
- FIG. 7 a schematic cross-sectional view of a panel and a junction element of said regulation device of FIG. 3, said panel comprising a hinge and two positioning elements and said junction element comprising two complementary positioning elements, according to a second non-limiting embodiment variant of a second non-limiting embodiment
- FIG. 8 is a zoomed schematic view of part of the frame of said regulating device of FIG. 3, the frame of said regulating device further comprising a locking element, according to a non-limiting embodiment
- FIG. 9 is a flowchart of a method of manufacturing a frame of said regulating device of FIG. 3, according to a non-limiting embodiment.
- the vehicle 2 is a motor vehicle.
- Motor vehicle means any type of motorized vehicle. This embodiment is taken as a non-limiting example in the remainder of the description. In the remainder of the description, vehicle 2 is thus otherwise called motor vehicle 2.
- control device 1 is part of a cooling module 3 of said motor vehicle 2, illustrated in Figure 1.
- the cooling module 3 comprises an upstream heat exchanger 30 (located on the left in Figure 1) and a downstream heat exchanger 31 (located on the right in Figure 1) arranged in series according to the direction of flow of the air flow F passing through them.
- the cooling module 3 is configured to be placed on its support, so that the upstream heat exchanger 30 is crossed by the air flow F first and the downstream heat exchanger 31 second.
- the upstream heat exchanger 30 is a cooling radiator, called low temperature, used to cool a coolant of a heat exchange loop, called low temperature, comprising , in particular, an air conditioning condenser and/or a charge air cooler.
- the downstream heat exchanger 31 is a high-temperature cooling radiator intended to cool a coolant of a heat exchange loop comprising an engine of the vehicle. The air passing through this downstream exchanger 3 cools the engine coolant.
- Each heat exchanger 30, 31 comprises, for example, a heat exchange beam and collection chambers arranged laterally on either side of the beam (not shown).
- the beam is crossed by the air flow F. It includes a set of parallel tubes to each other, opening into the collection chambers, for the circulation of the coolant (not shown).
- the cooling module 3 comprises a motor-fan unit 32 able to circulate the air in the cooling module 3.
- the motor-fan unit 32 is here arranged downstream of the downstream heat exchanger 31, the motor-fan unit 32 being configured to suck air from an inlet of air of the vehicle, which is preferably defined by its grille.
- the cooling module 3 comprises a single heat exchanger, for example a cooling radiator, said regulating device 1 then being arranged upstream or downstream of said heat exchanger.
- the air flow F passing through the heat exchanger comes from the air flow F passing through the regulating device 1 or leads to said regulating device 1.
- the regulating device 1 controls the passage of the air flow F from the upstream heat exchanger 30 to the downstream heat exchanger 31 via at least one roll-up curtain 10 (otherwise called blind). /rollable.
- control device 1 comprises:
- At least one curtain 10 configured to move in an opening/closing direction Z, between a closed position PF blocking the passage of said air flow F and an open position PO allowing said air flow F to pass, and
- a frame 11 configured to house said at least one curtain 10.
- control device 1 comprises two curtains 10. This non-limiting embodiment is taken as a non-limiting example in the following description.
- Each curtain 10 is delimited by a proximal edge 10a, two side edges 10b, and a distal edge 10c.
- Said lateral borders 10b are opposite and substantially parallel to a Z direction, orthogonal to an X direction, while said proximal border 10a and said distal border 10c are opposite and substantially parallel to a Y direction, orthogonal to the X and Z directions, the direction Z here representing the vertical.
- the regulating device 1 further comprises shafts 15 for rolling up/unrolling the curtains, connected to the frame 11 by hinge bearings 16.
- the curtains 10 are in the open position PO, i.e. they allow the air flow F to pass. In this configuration, the proximal edges 10a of said curtains 10 are at a distance from each other .
- the curtains 10 are in the closed position PF, namely they prevent the flow of air F to pass.
- the curtains 10 extend in a plane, called the curtain extension plane in the closed position.
- Said extension plane of the curtains in the closed position is oriented in the Z direction, corresponding to the opening/closing direction of the curtains, and in the Y direction.
- said extension plane of the curtains in the closed position is extends transversely to the airflow F.
- the respective proximal edges 10a of the curtains 10 are in contact with each other at the level of the dotted line Ay.
- the regulation device 1 further comprises a kinematics formed in particular according to a non-limiting embodiment of a transmission device 12, of two organs of drive 13 respectively connected to the curtains 10 and to said transmission device 12, and at least one actuator 14 configured to drive said transmission device 12.
- the actuator 14 comprises a motor shaft 140.
- the actuator 14 further comprises a hydraulic or pneumatic cylinder or more generally any motor component making it possible to induce a rotational movement of the motor shaft 140.
- the motor shaft 140 is articulated on bearings 141, linked to the frame
- the transmission device 12 comprises pinions 120 configured to pivot, clockwise or, conversely, counterclockwise, around an axis of rotation oriented in the direction Y.
- the motor shaft 140 is linked with the pinions 120.
- the pinions 120 can thus be guided in rotation by the motor shaft 140.
- the transmission device 12 further comprises toothed rods 121 substantially parallel to the direction Z. As can best be seen in Figure 1, each toothed rod 121 has a toothing. Said toothed rods 121 are meshed two by two on said pinions 120 via their respective teeth.
- the toothed rods 121 are located on either side of the pinions 120 in the direction X.
- the frame 11 provides an interior space 118 in which the curtains 10 are placed.
- the frame 11 comprises:
- junction elements 112 configured to assemble a pan 110 with another pan 110.
- frame 11 is aluminum or plastic. It comprises a thickness el defined so as to be able to integrate the kinematics (transmission device 12, drive members 13, actuator 14 etc.) seen previously.
- the thickness el represents the height of a panel 110 as shown in Figure 4.
- a panel 110 of the frame 11 comprises three sides 110a, 110b, 110c, the two sides 110b and 110c being opposite each other and being connected by the side 110a.
- each panel 110 of the frame 11 forms a female part and each joining element 112 forms a male part which is configured to fit into a panel 110.
- each face 110 forms a male part and each junction element 112 forms a female part, a face 110 being configured to fit into a junction element 112.
- the junction elements 112 can close the sides 110 either from the inside (when they form the male part) or from the outside (when they form the female part).
- the sections 110 of the frame 11 have an extruded profile.
- Each panel 110 defines an internal cavity 111.
- each junction element 112 has an angled shape.
- each panel 110 includes at least one hinge 113 so that said plane 110 can be folded. This makes it possible to move at least two parts of a pan 110 so as to open said pan 110.
- the junction element 112 forms a male part
- the internal cavity 111 is thus configured to insert a junction element 112 into the panel 110. More particularly, it is configured to receive one end of two junction elements 112 at each end of said pan 110.
- said at least one hinge 113 is a hinge-film or composed of a flexible material so as to be able to bend said plane 110 which comprises said hinge 113.
- the flexible material is integrated by co-extrusion of a panel 110.
- the flexible material is elastomer. It will be noted that a film hinge is simpler to manufacture than a flexible material hinge and more economical. It will be noted that a film hinge reduces the thickness el of said frame 111 at the place where it is formed.
- a panel 110 comprises a single hinge 113.
- the latter extends along the middle M of a 110a of the three sides 110a, 110b, 110c of said panel 110.
- Diagram (a) illustrates panel 110 when unfolded.
- diagram (b) thanks to this hinge 113, the plane 110 can bend and open to insert and position a junction element 112 in the internal cavity 111.
- the hinge 113 makes it possible to delimit two parts of the pan 110 which will be able to move.
- the hinge 113 has an inverted V shape.
- a panel 110 comprises two hinges 113.
- each hinge 113 extends along the border between two adjacent sides, one side 110a which connects the other two sides 110b, 110c to each other.
- the side 110a makes the junction between the two hinges 113.
- the diagram (a) of Figures 6 and 7 illustrates the panel 110 when it is not folded.
- the plane 110 can fold and open to insert and position a junction element 112 in the internal cavity 111.
- the two hinges 113 make it possible to delimit two parts of the pan 110 which will be able to move. It will be noted that in this second non-limiting embodiment, to fold said panel 110, pressure can be exerted on side 110a and spread the other two sides 110b, 110c to open said panel 110 and insert a junction element 112.
- the frame 11 further comprises at least one positioning device 114-115 configured to position a panel 110 relative to a junction element 112.
- the frame 11 comprises two positioning devices 114-115.
- each positioning device 114-115 is positioned opposite one another.
- the positioning devices 114-115 are arranged facing each other.
- a positioning device 114-115 is formed by a sub-assembly on a face 110 and by a complementary sub-assembly on a junction element 112.
- a positioning device 114-115 is formed by a boss on the pan 110 and by a groove 115 of a junction element 112 which cooperates with said pan 110.
- a positioning device 114-115 is formed by a tenon 114 on the face 110 and by a groove 115 of a junction element 112 which cooperates with said pan 110.
- the assembly 114-115 thus forms a dovetail.
- the frame 11 further comprises at least one locking device 116-117 configured to lock a panel 110 with respect to a joining element 112.
- the locking device 116-117 is a snap device.
- the latching device 116-117 comprises a slot 116 arranged in a face 110 of said frame 11 and a clip 117 arranged in a junction element 112 of said frame.
- a junction element 112 makes the junction between two sections 110, it will comprise two clips 117 which each cooperates with a slot of a different section 110.
- a panel 110 cooperates with two junction elements 112 to be connected to two other panels 110, it will include two slots 116 which each cooperate with a clip 117 of a junction element 112 different.
- the regulating device 1 is manufactured by a manufacturing method 5 illustrated in FIG. 9.
- the manufacturing method 5 of a regulating device 1 of a flow of air F intended to circulate through a heat exchanger 30, 31 for vehicle 2 comprises the following steps.
- a junction element 112 forms a male part.
- a second step E2) illustrated F2 (l, 110, 112) said at least four sides 110 are assembled with at least four joining elements 112.
- a first sub-step E21) illustrated F21 (110, 113) the sides 110 are folded and opened thanks to the hinges 113 described above.
- a second sub-step E22) illustrated F22 (110, 112, 111, 114-115) the joining elements 112 are inserted into the cavities 111 of the sections 110 which they must connect together and positioned correctly by means of the devices positioning 114-115 previously described.
- the panels 110 are closed.
- a final step E24) illustrated F24(110, 112, 116-117) the sections 110 are locked with the junction elements 112 with which they cooperate thanks to the locking devices 116-117 described above.
- a locking device 116-117 such as a snap-fastening device, it is understood that the locking takes place at the end of the insertion of a junction element 112 in a panel 110 with which he cooperates.
- the manufacturing method 5 further comprises an extrusion (step E illustrated F1'(1, 110, 113)) of at least one hinge 113 on each panel 110 at the same time as the extrusion (step E1) of each pan 110.
- step E illustrated F1'(1, 110, 113)
- said at least one hinge 113 is co-extruded with a flexible material.
- the flexible material is an elastomer. In this variant, the elastomer is heated at the same time as the sections 110 are extruded and then the assembly is cooled.
- the description of the invention is not limited to the embodiments described above and to the field described above.
- the opening/closing direction of the curtains 10 can be perpendicular to the direction Z.
- the regulating device 1 can comprise more than four sections 110 and more than four junction elements 112.
- the locking device 116-117 can be replaced by a mounting in force of a panel 110 with respect to a junction element 112 or vice versa.
Landscapes
- 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)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2007157A FR3112315B1 (fr) | 2020-07-07 | 2020-07-07 | Dispositif de régulation d’un flux d’air d’un véhicule automobile |
| PCT/EP2021/064362 WO2022008136A1 (fr) | 2020-07-07 | 2021-05-28 | Dispositif de regulation d'un flux d'air d'un vehicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4178821A1 true EP4178821A1 (fr) | 2023-05-17 |
Family
ID=72801672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21729511.2A Withdrawn EP4178821A1 (fr) | 2020-07-07 | 2021-05-28 | Dispositif de regulation d'un flux d'air d'un vehicule automobile |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4178821A1 (fr) |
| CN (1) | CN115768645A (fr) |
| FR (1) | FR3112315B1 (fr) |
| WO (1) | WO2022008136A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB695756A (en) * | 1951-06-20 | 1953-08-19 | Percy John Hanney | Improvements relating to means for regulating the flow of air through the radiator of a motor vehicle |
| US9931926B2 (en) * | 2012-08-31 | 2018-04-03 | Magna Exteriors Inc. | Active grille multi part modular frame |
| US20170334284A1 (en) * | 2016-05-17 | 2017-11-23 | Ford Global Technologies, Llc | Active grill shade |
| CA3030990A1 (fr) * | 2016-08-12 | 2018-02-15 | Braendon LINDBERG | Conception de calandre active, evolutive |
-
2020
- 2020-07-07 FR FR2007157A patent/FR3112315B1/fr not_active Expired - Fee Related
-
2021
- 2021-05-28 WO PCT/EP2021/064362 patent/WO2022008136A1/fr not_active Ceased
- 2021-05-28 CN CN202180047727.3A patent/CN115768645A/zh not_active Withdrawn
- 2021-05-28 EP EP21729511.2A patent/EP4178821A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN115768645A (zh) | 2023-03-07 |
| FR3112315B1 (fr) | 2022-07-15 |
| WO2022008136A1 (fr) | 2022-01-13 |
| FR3112315A1 (fr) | 2022-01-14 |
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