EP4580900A1 - Module thermique pour véhicule automobile - Google Patents
Module thermique pour véhicule automobileInfo
- Publication number
- EP4580900A1 EP4580900A1 EP23761813.7A EP23761813A EP4580900A1 EP 4580900 A1 EP4580900 A1 EP 4580900A1 EP 23761813 A EP23761813 A EP 23761813A EP 4580900 A1 EP4580900 A1 EP 4580900A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor
- thermal module
- heat exchanger
- fan group
- guide device
- 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
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
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2304/00—Optimising design; Manufacturing; Testing
- B60Y2304/07—Facilitating assembling or mounting
- B60Y2304/072—Facilitating assembling or mounting by preassembled subunits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2410/00—Constructional features of vehicle sub-units
- B60Y2410/113—Mount clips, snap-fit, e.g. quick fit with elastic members
Definitions
- the present invention relates to the field of heat treatment systems for motor vehicles and more particularly concerns a thermal module intended to be placed on the front of a vehicle and to be passed through by an air flow.
- Vehicles and in particular motor vehicles, are commonly equipped with a refrigerant circuit and/or a heat transfer fluid circuit used to participate in the heat treatment of different zones or different components of the vehicle.
- a heat exchange is carried out between the fluids previously mentioned and a flow of air outside the passenger compartment.
- the refrigerant fluid and the heat transfer fluid are made to pass through one or more heat exchangers fitted to the vehicle, in particular on the front of the vehicle, the air flow rushing through a grille to pass through these exchangers. heat.
- Such heat exchangers are commonly arranged within thermal modules, between a guiding device, by which the air flow entering through the grille is guided through the heat exchanger, and a motor-fan group, also known under the acronym “GMV”, allowing, for example when the vehicle is stationary, to force the circulation of the outside air flow through the heat exchanger.
- GMV motor-fan group
- the circulation of the air flow within the thermal module whether when the vehicle is traveling at high speed, which implies that a large volume of external air rushes into the guiding device, or when operation of the GMV at high speed, generates an excess pressure within the thermal module compared to the environment outside the thermal module.
- the present invention fits into this context and proposes to overcome the disadvantages of the prior art and in particular to propose a thermal module in which air leaks are limited without a material specifically dedicated to this function and interposed between the guiding device, the heat exchangers and/or the motor-fan unit is necessary.
- the invention thus relates to a thermal module intended to be placed on the front of a motor vehicle, the thermal module comprising a heat exchanger, a motor-fan unit and a device for guiding an air flow, the heat exchanger being arranged between the guide device and the motor-fan group, the heat exchanger comprising an internal face placed facing the guide device and an external face facing the motor-fan group, the internal face and the external face of the heat exchanger being joined to one another by a peripheral edge, characterized in that the guide device and the motor-fan group overlap the peripheral edge of the heat exchanger and are fixed to each other at the level of a plurality of fixing zones each comprising at least one fixing means, the guide device and the motor-fan unit being in contact with each other on the periphery of the peripheral edge of the heat exchanger outside the fixing zones so as to form a sealing device for the thermal module.
- the internal face of the heat exchanger is directly facing the guiding device and the external face of the heat exchanger is directly facing the motor-fan group. It is understood that such a characteristic of the thermal module is advantageously obtained by the sealing zones making it possible to avoid the use of a sealing material specifically dedicated to the sealing function of the thermal module.
- the sealing device comprises at least one primary sealing zone in which the cooperation of the guide device and the motor-fan group forms a baffle and at least one secondary sealing zone in which the cooperation of the guiding device and the motor-fan group consists of a plane support.
- the baffle present in the primary sealing zone has the effect of lengthening the path to be taken by the air flow to exit the thermal module and therefore strongly limiting the quantity of air likely to escape at this zone. primary sealing.
- the secondary sealing zone comprises a flat support advantageously making it possible to ensure, during assembly of the module thermal, positioning of the motor-fan group in relation to the guiding device taking into account manufacturing tolerances.
- Each of the primary and secondary sealing zones extends all along one side of the thermal module outside the fixing zones at which the motor-fan unit and the guiding device are secured to each other through the fixing means.
- a baffle sealing zone is associated, that is to say an effective zone for reducing leaks due to the tortuous path that the air must take to escape through this zone, but which allows a positioning game of one of the components forming the baffle relative to the other, with a primary sealing zone with plane contact, which ensures that air does not pass between the components forming this zone primary sealing.
- the thermal module does not require the use of a specific part (for example, an elastomer such as EPDM or a foam), the function of which in the prior art is to limit the losses of air flow between the motor-fan group and the guiding device, absorbing the manufacturing and assembly tolerances of the thermal module.
- a specific part for example, an elastomer such as EPDM or a foam
- the guide device and/or the motor-fan group has sides intended to be in the vicinity, where appropriate in direct contact, of the peripheral edge of the heat exchanger, and that the fixing means and that the fixing zones and the sealing zones overlap the peripheral edge of the heat exchanger.
- the peripheral edge extends over at least three sides of the heat exchanger, and at least one fixing means is provided at each of the sides of the heat exchanger.
- the distribution of the fixing means is substantially homogeneous along the sides of the thermal module. Such a distribution advantageously makes it possible to distribute the forces allowing the motor-fan unit and the guiding device to be integral with each other. It should be noted that this distribution of the fixing means makes it possible to limit air flow losses by constraining the motor-fan unit as much as possible against the guiding device.
- the positioning of the two components, namely the motor-fan unit and the guiding device, in contact with one another in the secondary sealing zone can generate, depending on the adjustment due to the manufacturing and assembly tolerances, a movement of the rib within the groove in a direction perpendicular to the first direction.
- the secondary sealing zone makes it possible, if necessary, to slightly deform the motor-fan unit and/or the guiding device in an adjustment direction, perpendicular to the first direction, and the zone primary sealing has a mounting clearance of the rib in the groove, in this same direction of adjustment, so that the assembly of the thermal module can take into account, in particular, the manufacturing tolerances.
- the secondary sealing zone and the primary sealing zone are arranged on opposite sides considering the direction of adjustment.
- the invention relates to a motor vehicle comprising a thermal module conforming to any of the characteristics previously mentioned.
- FIG.l schematically illustrates a thermal module, according to the invention, intended to be placed on the front of a vehicle
- FIG.2 schematically illustrates an exploded view of the thermal module represented by Figure 1
- FIG.3 schematically illustrates a sectional view of one side of the thermal module at which the contact between a motor-fan unit and a guiding device is configured to form a primary sealing zone
- FIG.q schematically illustrates a sectional view of another side of the thermal module at which the contact between the motor-fan unit and the guiding device is configured to form a secondary sealing zone;
- FIG.5 schematically illustrates a sectional view passing through a primary sealing zone on one side of the thermal module and through a secondary sealing zone on another side of the thermal module.
- characteristics, variants and different embodiments of the invention can be associated with each other, in various combinations, to the extent that they are not incompatible or exclusive of each other. It will be possible in particular to imagine variants of the invention comprising only a selection of characteristics described subsequently in isolation from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from to the state of the art.
- transverse direction corresponds to the stacking direction of the thermal module, this transverse direction being parallel to a transverse axis T of a reference L, V, T illustrated in the figures.
- a vertical direction corresponds to a direction parallel to a vertical axis V of the reference L, V, T and this axis vertical V being perpendicular to the transverse axis T.
- a longitudinal direction corresponds to a direction parallel to a longitudinal axis L of the reference L, V, T, this longitudinal axis L being perpendicular to the transverse axis T and to the axis vertical V.
- FIG i illustrates a thermal module i according to one embodiment of the present invention.
- This thermal module i is intended to equip a vehicle, in particular a motor vehicle, in order to carry out a heat exchange with an air flow passing through it.
- the thermal module i comprises at least one device 2 for guiding the air flow, a heat exchanger 3 intended to carry out a thermal exchange with the air flow, and a motor-fan group 4.
- the module thermal 1 extends mainly in a vertical and longitudinal plane, parallel to the vertical axis V and the longitudinal axis L.
- the guide device 2, the heat exchanger 3 and the motor-fan group 4 extend mainly in a vertical and longitudinal plane.
- the thermal module 1 is arranged at the front face of the motor vehicle, and more precisely at the level of an opening provided in the bodywork of said vehicle, also called the grille, the air flow coming from outside the vehicle being suitable to enter the thermal module 1 through this calender.
- the inlet of the guide device 2 of the thermal module 1 and more precisely the inlet opening 21 of the guide device 2, is arranged at the level of this grille so that the air flow can penetrate , directly or indirectly, in the thermal module 1.
- the inlet opening 21 can be directly placed in contact with the calender or be indirectly connected to the calender, for example by means of a conduit joining the calender to the entrance opening 21.
- the motor-fan group 4 is arranged opposite the guide device 2, with the heat exchanger 3 interposed between these two components.
- THE motor-fan group 4 and the guiding device come into contact with each other, around the heat exchanger 3, forming different contact zones including a first side 11, a second side 12, a third side 13 and a fourth side 14, each of these sides 11, 12, 13 and 14 forming the perimeter of the thermal module 1.
- the guide device 2 comprises a support 22 intended to receive the heat exchanger 3. More precisely, the heat exchanger 3 is arranged on the support 22 of the guide device 2 so that an internal face 31 of the heat exchanger 3 rests against the guide device, here rests against a stop 23 formed by a wall of the guide device opposite the support 22. It is understood that an external face 32 of the heat exchanger 3, opposite the internal face 31, is then intended to be facing the motor-fan group 4.
- the heat exchanger 3 comprises an exchange surface 34 configured to be able to be crossed by the flow of external air circulating within the thermal module from the air inlet opening 21 towards the outlet opening of air 41.
- This exchange surface here comprises a plurality of tubes within which a heat transfer fluid circulates and the air flow passing through this exchange surface between the tubes is capable of giving up or recovering calories from this heat transfer fluid via the tubes.
- peripheral edge 33 extends in a direction parallel to the axis stacking 100 when the thermal module 1 is assembled.
- the guiding device 2 and the motor-fan group 4 are configured to cover the peripheral edge 33 of the heat exchanger 3, when the thermal module 1 is assembled. More particularly, the guide device and the motor-fan group each comprise flanks arranged at the periphery which extend, substantially along the stacking axis 100, the guide device and the motor-fan group, and these sides are brought to cover the peripheral edge 33 of the heat exchanger 3.
- This covering of the peripheral edge 33 is such that at least part of the peripheral edge 33 is directly facing the guide device 2 and/or the motor-fan group 4. It is understood that the covering of the peripheral edge 33 by the device of guidance 2 and the motor-fan group 4 ensures sufficient sealing of the thermal module 1 allowing it to do without a material dedicated to this function interposed between the guide device 2 and the motor-fan group 4.
- the guide device 2 and the motor-fan group 4 are fixed to each other by fixing means 50. These fixing means are here carried by the sides of the guide device and the motor-fan group which cover the peripheral edge.
- each of the fixing means 50 is formed by the cooperation between an elastically deformable tongue 51 and a housing 52.
- the tongue 51 is provided on the guide device 2 and/or the motor-fan group 4 , and more particularly on one of the sides of the guide device 2 and/or of the motor-fan unit 4, and the housing 52 on the other, and more particularly on one of the corresponding sides.
- the tongue 51 is provided on one side of the motor-fan unit 4 and the housing 52 is provided on one side of the guide device 2.
- the tongue 51 extends in a direction substantially parallel to the transverse axis T, that is to say substantially parallel to the stacking axis 100, from a portion of the motor-fan group 4 covering the peripheral edge 33 when the thermal module 1 is assembled, that is to say from one of the sides of the motor-fan unit.
- This tongue 51 is intended to be housed in the associated housing 52 and provided on a portion of the guide device 2 overlapping the peripheral edge 33, that is to say on one of the sides of the guide device.
- the tongue 51 has a chamfer at one free end, making it easier to insert the tongue 51 into the housing 52 with an elastic deformation of the tongue 51, and a shoulder, subsequently allowing an elastic return of the tongue 51 in its initial position to maintain the tongue 51 in the housing 52.
- a deformation of the snap-on type is thus produced by elastic deformation, which is particularly simple to implement.
- the thermal module 1 comprises eight fixing zones 5 distributed uniformly all along the peripheral edge 33, each of these fixing zones 5 comprising a fixing means 50. It should be noted that this is of an exemplary embodiment not limiting the number of fixing zones 5, but also that other fixing means could be implemented without departing from the context of the invention.
- the chicane 72 disrupts the flow of the air flow caused to escape from the thermal module 1 between the guiding device 2 and the motor-fan unit 4, so that the pressurized air flow continues to flow through the heat exchanger 3 rather than escaping to the sides.
- the baffle 72 advantageously contributes to limiting the overall leak rate of the air flow through the junction of the guide device 2 and the motor-fan unit 4 to a rate value of at most 3%.
- the primary sealing zone 7 extends along the same side of the thermal module 1 outside the fixing zones 5.
- this secondary sealing zone 8 and more particularly the plane support 82 allows, during the assembly of the motor-fan group 4 and the guiding device 2 with each other, to significantly deform the casing of the motor-fan group 4 and to adjust the position of each of the ribs 711 arranged around the periphery of this motor-fan group 4, and in particular of that intended to be housed in the groove 721 to form the first primary sealing zone 7.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2208790A FR3139295B1 (fr) | 2022-09-01 | 2022-09-01 | Module thermique pour véhicule automobile. |
| PCT/EP2023/073086 WO2024046825A1 (fr) | 2022-09-01 | 2023-08-23 | Module thermique pour véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4580900A1 true EP4580900A1 (fr) | 2025-07-09 |
Family
ID=84053470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23761813.7A Pending EP4580900A1 (fr) | 2022-09-01 | 2023-08-23 | Module thermique pour véhicule automobile |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4580900A1 (fr) |
| CN (1) | CN119968285A (fr) |
| FR (1) | FR3139295B1 (fr) |
| WO (1) | WO2024046825A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10576817B2 (en) * | 2017-05-15 | 2020-03-03 | Polaris Industries Inc. | Three-wheeled vehicle |
| FR3068389B1 (fr) * | 2017-06-29 | 2019-12-20 | Valeo Systemes Thermiques | Unite de refroidissement pour compartiment moteur |
| EP3671099A1 (fr) * | 2018-12-21 | 2020-06-24 | Valeo Autosystemy SP. Z.O.O. | Grille de protection pour un module d'échangeur de chaleur |
| FR3104496B1 (fr) * | 2019-12-13 | 2022-08-05 | Valeo Systemes Thermiques | Module de refroidissement de véhicule automobile |
-
2022
- 2022-09-01 FR FR2208790A patent/FR3139295B1/fr active Active
-
2023
- 2023-08-23 WO PCT/EP2023/073086 patent/WO2024046825A1/fr not_active Ceased
- 2023-08-23 CN CN202380070297.6A patent/CN119968285A/zh active Pending
- 2023-08-23 EP EP23761813.7A patent/EP4580900A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024046825A1 (fr) | 2024-03-07 |
| CN119968285A (zh) | 2025-05-09 |
| FR3139295B1 (fr) | 2024-10-25 |
| FR3139295A1 (fr) | 2024-03-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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| 17P | Request for examination filed |
Effective date: 20250227 |
|
| AK | Designated contracting states |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VALEO ELECTRIFICATION |