EP3548722A1 - Dispositif de refroidissement d'un moyen de propulsion d'un véhicule - Google Patents
Dispositif de refroidissement d'un moyen de propulsion d'un véhiculeInfo
- Publication number
- EP3548722A1 EP3548722A1 EP17801732.3A EP17801732A EP3548722A1 EP 3548722 A1 EP3548722 A1 EP 3548722A1 EP 17801732 A EP17801732 A EP 17801732A EP 3548722 A1 EP3548722 A1 EP 3548722A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- propulsion
- flange
- vehicle according
- electric motor
- 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- Withdrawn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
- 238000001816 cooling Methods 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/06—Guiding or ducting air to, or from, ducted fans
-
- 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
- B60K1/00—Arrangement or mounting of electrical 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
- B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P2001/005—Cooling engine rooms
Definitions
- Cooling device for a means for propelling a vehicle
- the present invention is in the field of cooling a propulsion means for a motor vehicle.
- the invention relates to an optimized cooling device of a propulsion means which may be a powertrain comprising an internal combustion engine or an electric motor driven in voltage by a suitable control means.
- Solutions for thermal management of a propulsion means often use a motor-fan unit which in the operating state is able to create a forced air flow in a compartment of the vehicle, the latter dedicated to integration of said propulsion means being commonly referred to as engine compartment.
- a motor-fan unit is usually located at an air inlet opening of the engine compartment, especially at a bumper, so that the movement of the vehicle can generate a natural flow of air through the fan motor unit before crossing the engine compartment.
- the object of the invention thus consists in a vehicle comprising a cooling device arranged in a compartment receiving a propulsion means which is characterized essentially by the fact that the cooling device comprises means for generating an air flow. and an air guiding means disposed around said propulsion means for forming therewith at least one air flow channel of predetermined thickness, the cooling device having a convergent disposed between an output of air of said means for generating an air flow and the inlet of said air guiding means.
- a vehicle allows a calibrated distribution of the air flow according to the typology of said propulsion means, said air guiding means being specifically shaped according to the propulsion means.
- the air leaving the motor-fan unit thus bypasses each of the different parts of the powertrain according to the need for cooling.
- the air flow can thus be predefined with regard to a need for cooling which may be more or less important depending on the body of said propulsion means to be cooled.
- the vehicle comprises the following characteristics taken separately or in combination with one another: the convergent is made of a flexible material, in particular from a plastic material;
- the air guiding means is an envelope made of a rigid material, in particular from a plastic material, and connected to the propulsion means by dedicated fixing interfaces; the envelope comprises at least one flange covering all or part of said propulsion means; said means for generating an air flow is a motor-fan unit assembled immovably to the body structure of the vehicle via a support frame on which the convergent is fixed;
- the propulsion means extending transversely to the vehicle structure, the convergent comprising an air outlet opening, which may be of approximately elliptical profile, delimited by a flange intended to overlap a fastening flange bordering the air inlet opening of said air guiding means;
- said propulsion means is a unitary unit comprising an electric motor, a gearbox and a control module containing in particular a power electronics, the gearbox being arranged between the electric motor and the control module so that the gearbox extends facing an approximately central portion of the air inlet opening of said air guiding means;
- a main flange comprises front and bottom faces arranged facing said propulsion means and a lateral face disposed opposite a free end of the electric motor;
- a secondary flange is fixed to the main flange, the secondary flange comprising a rear face extending with respect to the electric motor and a lateral face disposed opposite the free end of the electric motor, the secondary flange comprising at least one outlet air evacuation;
- FIG. 1 is an exploded view of a perspective view of a cooling device intended to be arranged inside a compartment of a vehicle, according to the invention
- FIG. 2 is a perspective view, in a rear view of a portion of the cooling device covering the propulsion means, according to the invention
- FIG. 3 represents, in a front perspective view, the part of the cooling device of FIG. 2, according to the invention.
- Figure 4 is an enlargement of an end portion of said propulsion means of Figure 2 showing an embodiment of the cooling device cooperating with a motor according to the invention.
- X is the longitudinal direction of the front-rear vehicle rearward
- Y is the right-left transverse direction at vehicle, which is horizontal and perpendicular to X, directed to the right
- Z is the vertical direction directed to the top.
- front, “rear”, “right”, “left”, “horizontal”, “vertical”, “upper” and “lower” are relative to the vehicle or to a part of it and are defined by relative to the direction of movement of the vehicle.
- a device 1 for cooling a propulsion means preferably comprises a convergent 4 and an air guiding means 3 which wholly or partly surrounds said propulsion means in order to guide the air in the air. cooling as close to areas of the propulsion means requiring cooling by heat exchange.
- the cooling device 1 comprises means for generating a pulsed air flow which consists of a motor-fan unit (not shown).
- the latter is mounted on the vehicle structure in a fixed manner.
- the fan motor unit includes a support frame in which rotates the different blades of a fan.
- the latter is rotatably mounted around a shaft of an electric motor, which extends for example parallel to the longitudinal axis X.
- the electric motor can be controlled in frequency modulation so that its rotation speed can be variable and defined according to different control parameters.
- the motor-fan unit is disposed at an air inlet opening defining an air passage between the outside of the vehicle and the interior of a vehicle compartment.
- the compartment is for example a motor compartment that can be arranged at the front or rear of the vehicle, for example under the floor of the vehicle.
- the movement of the vehicle allows the creation of a natural flow of air inside the engine compartment.
- the rotation of the motor-ventilation unit via a frequency modulation control allows the creation of a forced flow of air inside the engine compartment.
- the cooling device 1 comprises an air guiding means 3 which generally extends wholly or partly around said propulsion means 2, as will be detailed hereinafter.
- Such air guiding means 3 comprises an air inlet opening 5 which has a substantially identical surface to that of the air outlet of the motor-fan unit so that the air flow at the inlet opening is approximately the same as the outgoing air flow of the motor-fan unit.
- Such a design aims to reduce any pressure drop between the outlet and the inlet of the means 3 for guiding air.
- the air inlet opening 5 of the air guiding means 3 has a profile. sensibly elliptical and horizontal orientation in that the opening 5 has a Z axis height less than its Y axis width.
- a convergent 4 is arranged between the motor-fan unit and the air-handling means 3 integral with the power unit.
- Convergent 4 is a conduit for conveying air flowing between the air outlet opening of the motor-fan unit and the air inlet opening 5 of said air guide means 3 around the group. Transmissions.
- Convergent 4 is of complex shape, comprising a main membrane 44 of any conical profile in order to provide a channel for conveying air between the air outlet of the motor-fan unit and the inlet opening 5 of means 3. air guide.
- the convergent 4 is shaped so that it comprises at each of its free ends a flange 42, 43 for attachment respectively to the motor-fan unit and said means 3 for guiding air.
- the front flange 43 is shaped according to a fastening flange bordering the air outlet opening of the motor-fan unit.
- the rear flange 42 is shaped according to a fastening flange 33 bordering the air inlet opening 5.
- the convergent 4 is preferably made of flexible material, in particular from a plastic material.
- the convergent 4 can be made of rubber.
- the front flanges 43 and rear 42 convergent 4 can be made by overmolding a rigid plastic.
- the flexible convergent 4 makes it possible to compensate for the different variations in the difference between the motor-fan unit rendered immobile on the body structure and the mobile power unit relative to the body structure during its operation.
- the vibratory regime of the motor-fan unit may be different to that of the powertrain, the flexible convergent 4 can absorb these differences in vibration.
- the front flange 43 can be directly fixed by screwing to the fan motor unit.
- the flange 43 may also comprise fixing tabs for assembly on the fan motor unit.
- the rear flange 42 may overlap the fastening flange 33 so that the assembly can be achieved by a clamping collar 7 trapping the convergent 4 on the means 3 for guiding air.
- the cooling device 1 advantageously allows optimized thermal management of the various members constituting the means 2 of propulsion.
- the air guiding means 3 is an envelope made of a rigid material, in particular from a plastic material.
- the envelope comprises at least one flange arranged on the propulsion means 2 so that it extends in all or part around the latter to form a cooling air flow channel.
- said propulsion means 2 is a unitary assembly which comprises an electric motor 21, a gearbox 22 and a control module 23 containing in particular a power electronics.
- the architecture of said means 2 for propulsion consists of an assembly of the gearbox 22 between the electric motor 21 and the control module 23.
- the means 2 for propulsion may be a heat engine.
- the gearbox 22 extends towards an approximately central part, the electric motor 21 and the control module 23 being also arranged in part in direct view of the engine. opening 5.
- the casing forming said air guiding means 3 comprises a main flange 31.
- the main flange 31 comprises a front face 310 in which the opening 5 is formed.
- the opening 5 may comprise a closure wall 8 connecting two portions of the elliptical attachment flange 33.
- the wall 8 here extends vertically so as to leave only a lower part of the gearbox 22 under the influence of a cooling air flow.
- the main flange 31 comprises a front face 310 substantially flat in its portion having the opening 5 and in its overlapping side portion of the control module 23. Its side portion overlapping the electric motor is substantially cylindrical in order to fit more closely the motor housing 21.
- the main flange 31 is shaped according to the electric motor 21 so that it overlaps by at least half of its outer periphery.
- the main flange 31 may also comprise a side face 312 disposed partially covering a free end of the electric motor 21.
- the main flange 31 may comprise a lower face 31 1 substantially flat in its parts intended to extend below the gearbox 22 and the control module 23.
- the free edges of the front faces 310 and lower 31 1 may comprise a rigidity rib 313 extending in a plane parallel to the axis X. Such a stiffness rib is intended in particular to avoid any vibratory effect of the envelope.
- the air guiding means 3 may also comprise a secondary flange 32 which, once assembled, overlaps the portion of the electric motor 21 not covered by the main flange 31.
- the arrangement of the flange 32 almost encircles the housing of the electric motor 21 by its peripheral edge.
- the housing 21 of the electric motor comprises radial fins disposed projecting out of the housing, so that it increases the heat exchange surface between the housing and the flow of cooling air flowing in the channel forming by the assembly of the powertrain envelope.
- the secondary flange 32 defines a rear wall in which is provided at least one opening 324 for discharging air. As shown in Figure 4, the secondary flange 32 includes two openings 324 adjacent to the Y axis, which improves the calorie evacuation.
- the secondary flange 32 may also comprise a side face 322 arranged partially covering the free end of the electric motor 21.
- the lateral faces 312 and 322 respectively belonging to the main and secondary flanges 31 and 31 are joined together to each other by fixing means 34, 35.
- Fixing said air guide means 3 on the propulsion means 2 is preferably effected by attachment interfaces 6 which can be derived from molding of the electric motor housing 21 or tabs reported and provided for this purpose.
- the means 34 for mutually fastening the flanges 31 and 32 to one another may comprise tabs projecting out of one of the main and secondary flanges 31 and 32 and engaging in corresponding loops formed in the other of the main flanges 31 and secondary 32.
- Such sets consisting of a tongue and a corresponding loop may be arranged at the side faces 312 and 322. They may also be arranged at the free edges of the flanges main 31 and secondary 32 which are capable of ensuring a junction of the flanges between them.
- the attachment means 35 can be of the quick-fastening type and thus constituted from a retaining claw fitted on two edges. peripherals of the main flanges 31 and secondary 32 which are arranged in support against each other. Alternatively, the retaining claw comprises an opening making it possible to clamp the abovementioned edges by a dedicated screw.
- Such fastening means 34 and 35 allow reversible mounting of said air guiding means 3 on the means 2 for propulsion. Due to its two-part structure, the air guiding means 3 encircles the electric motor 21, which tends to increase the cooling air flow rate. The casing thus formed by said air guiding means 3 significantly improves the cooling of the propulsion means while forming a thermal barrier reducing the effect of thermal radiation to the surrounding elements.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1661649A FR3059359B1 (fr) | 2016-11-29 | 2016-11-29 | Dispositif de refroidissement d'un moyen de propulsion d'un vehicule |
PCT/EP2017/080415 WO2018099831A1 (fr) | 2016-11-29 | 2017-11-24 | Dispositif de refroidissement d'un moyen de propulsion d'un véhicule |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3548722A1 true EP3548722A1 (fr) | 2019-10-09 |
Family
ID=58228176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17801732.3A Withdrawn EP3548722A1 (fr) | 2016-11-29 | 2017-11-24 | Dispositif de refroidissement d'un moyen de propulsion d'un véhicule |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3548722A1 (fr) |
CN (1) | CN110114564A (fr) |
FR (1) | FR3059359B1 (fr) |
WO (1) | WO2018099831A1 (fr) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1349930A (fr) * | 1962-09-27 | 1964-01-24 | Auto Union Gmbh | Ventilation de refroidissement pour véhicules automobiles |
DE4420530A1 (de) * | 1994-06-14 | 1995-12-21 | Stihl Maschf Andreas | Handgeführtes Arbeitsgerät |
JPH10131750A (ja) * | 1996-10-31 | 1998-05-19 | Toyota Autom Loom Works Ltd | 産業車両の車体構造 |
US8104559B2 (en) * | 2008-09-22 | 2012-01-31 | Clark Equipment Company | Multiple air flow paths using single axial fan |
DE102009021095B4 (de) * | 2009-05-13 | 2013-07-04 | Audi Ag | Kraftwagen mit einem Heckmotor |
WO2013006949A1 (fr) * | 2011-07-08 | 2013-01-17 | Consortium De Recherche Brp - Universite De Sherbrooke S.E.N.C. | Véhicule sur roues tout-terrain électrique |
US9527375B2 (en) * | 2014-08-20 | 2016-12-27 | Gm Global Technoogy Operations Llc | Powertrain with transmission-based motor/generator for engine starting and regenerative braking modes |
FR3029467B1 (fr) * | 2014-12-08 | 2016-12-09 | Renault Sa | Groupe motopropulseur electrique refroidi par air |
DE102014225807B4 (de) * | 2014-12-15 | 2019-03-07 | Bayerische Motoren Werke Aktiengesellschaft | Kühlsystem für ein Fahrzeug zur Luftkühlung mehrerer Räume mit unterschiedlichen Temperaturanforderungen |
WO2016162750A1 (fr) * | 2015-04-09 | 2016-10-13 | Globe International Nominees Pty Ltd | Roue motorisée à refroidissement |
-
2016
- 2016-11-29 FR FR1661649A patent/FR3059359B1/fr active Active
-
2017
- 2017-11-24 CN CN201780080490.2A patent/CN110114564A/zh active Pending
- 2017-11-24 WO PCT/EP2017/080415 patent/WO2018099831A1/fr unknown
- 2017-11-24 EP EP17801732.3A patent/EP3548722A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2018099831A1 (fr) | 2018-06-07 |
FR3059359B1 (fr) | 2020-06-26 |
CN110114564A (zh) | 2019-08-09 |
FR3059359A1 (fr) | 2018-06-01 |
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