EP4046259A1 - Système électronique d'alimentation d'une machine électrique et ensemble électrique comprenant un tel système électronique - Google Patents
Système électronique d'alimentation d'une machine électrique et ensemble électrique comprenant un tel système électroniqueInfo
- Publication number
- EP4046259A1 EP4046259A1 EP20789633.3A EP20789633A EP4046259A1 EP 4046259 A1 EP4046259 A1 EP 4046259A1 EP 20789633 A EP20789633 A EP 20789633A EP 4046259 A1 EP4046259 A1 EP 4046259A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat sink
- face
- electronic
- heat
- heat dissipation
- 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
- 230000017525 heat dissipation Effects 0.000 claims abstract description 69
- 238000004804 winding Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 28
- 239000003990 capacitor Substances 0.000 claims description 12
- 239000012809 cooling fluid Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000003570 air Substances 0.000 description 11
- 238000001914 filtration Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000005669 field effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Definitions
- the invention relates to an electronic power supply system for an electric machine with improved cooling as well as to an electric assembly comprising such an electronic system and an electric machine.
- an electronic power module allowing the conversion of a direct current to an alternating current
- the electronic power module comprising:
- control pin receiving a control signal making it possible to control the electronic power module
- an electronic control module configured to generate the control signal and comprising a second heat dissipation face
- a fourth face of the second heat sink being in thermal contact with the second heat dissipation face of the electronic control module, the first heat dissipation face, the second heat dissipation face, the third face of the first heat sink thermal and the fourth face of the second heat sink has an orientation perpendicular to the axis of rotation.
- the cooling air flows of the power electronic module and of the electronic control module are radial flows, that is to say flows perpendicular to the axis of rotation of an electric machine .
- these radial flows take an axial direction to enter the electric machine and be driven by a fan of the electric machine. This radial to axial change in direction is the cause of pressure drop reducing the flow of cooling air and therefore the cooling of the electronic system.
- the present invention aims to eliminate all or part of these drawbacks.
- the invention relates to an electronic system, for powering a rotary electric machine having an axis of rotation, comprising:
- an electronic power module allowing the conversion of a direct current to an alternating current
- the electronic power module comprising:
- control pin receiving a control signal making it possible to control the electronic power module
- a first heat sink a third face of the first heat sink being in thermal contact with the first heat dissipation face of the power electronic module, a fifth face of the first heat sink being opposite the third face of the first heat sink, the first heat dissipation face and the third face of the first heat sink having a first generatrix forming a first angle strictly greater than 0 degrees and strictly less than 90 degrees with axis of rotation in particular forming a first angle strictly greater than 0 degrees and less than or equal to 45 degrees with the axis of rotation.
- an electronic power module whose heat dissipation face with its heat sink has a generator forming an angle of less than 90 degrees with the axis of rotation of the electrical machine makes it possible to facilitate the cooling of the electronic power module. . Indeed, such an angle and in particular an angle less than 45 degrees makes it possible to facilitate the circulation of an air flow generated by a fan of the electric machine.
- Such an orientation of the power electronic module makes it possible to reduce the pressure losses due to changes in the direction of the flow of cooling air. Thus, for the same power absorbed by the fan of the electric machine, the flow of cooling air will be greater thanks to this orientation of the electronic power module. A gain in axial bulk can also be achieved.
- the electronic control module comprises a second heat dissipation face, the electronic system comprising a second heat sink, a fourth face of the second heat sink being in thermal contact with the second heat dissipation face of the electronic control module, a sixth side of the second heat sink being opposite the fourth side of the second heat sink, the second heat dissipation side and the fourth side of the second heat sink having a second generatrix forming a second angle strictly greater than 0 degrees and strictly less than 90 degrees with the axis of rotation in particular forming a second angle strictly greater than 0 degrees and less than or equal to 45 degrees with the axis of rotation.
- such an orientation of the electronic control module makes it possible to improve the cooling of the electronic control module by facilitating the circulation of an air flow generated by a fan of the electric machine.
- the invention also relates to an electronic system, for supplying a rotary electrical machine having an axis of rotation, comprising:
- an electronic power module allowing the conversion of a direct current to an alternating current
- the electronic power module comprising:
- control pin receiving a control signal making it possible to control the electronic power module
- an electronic control module configured to generate the control signal and comprising a second heat dissipation face
- a first heat sink a third face of the first heat sink being in thermal contact with the first heat dissipation face of the power electronic module, a fifth face of the first heat sink being opposite to the third face of the first heat sink,
- a fourth face of the second heat sink being in thermal contact with the second heat dissipation face of the electronic control module, a sixth face of the second heat sink being opposite the fourth face of the second heat sink, the first heat dissipation face, the second heat dissipation face, the third face of the first heat sink and the fourth face of the second heat sink having a generatrix substantially parallel to the axis of rotation.
- a power electronic module and its heat sink as well as an electronic control module and its heat sink oriented parallel to the axis of rotation makes it possible to improve the cooling of the power electronic module and of the electronic control module. ordered. In fact, the cooling air flow generated by the fan of the rotating electrical machine is sucked into the rotating electrical machine with an axial direction. Such an orientation parallel to the axis of rotation makes it possible to limit the pressure losses and therefore increase the cooling air flow rate on the power electronic module and / or its cooler and on the control electronic module and its cooler.
- the fifth face of the first heat sink comprises first cooling fins and / or the sixth face of the second heat sink comprises second cooling fins.
- cooling fins increases the heat exchange surface with the cooling air flow and thus improves cooling.
- the electronic system comprises a plurality of electronic power modules and first heat sinks.
- the electronic control module comprises several electronic submodules each comprising a second heat dissipation face, the electronic system comprising a second heat sink for each of the electronic submodules, each of the second heat dissipation faces being respectively in thermal contact with a fourth face of a second heat sink.
- At least two heat sinks among the first heat sinks and the second heat sinks are connected by a junction part between the at least two heat sinks, the junction part being in continuity of material with the at least two heat sinks.
- the electronic system comprises a filtering capacitor, the filtering capacitor comprising a seventh heat dissipation face, the seventh heat dissipation face being in thermal contact with an eighth face of the junction part, the junction part forming a third heat sink.
- the third heat sink connects either a first heat sink and a second heat sink, or two second heat sinks.
- This position of the third heat sink makes it possible to limit the heating of the third heat sink and therefore to limit the heating of the filtering capacity.
- the first heat dissipation face and the third face of the first heat sink are generally planar.
- the second heat dissipation face and the fourth face of the second heat sink are generally planar.
- a passage for a cooling fluid is formed between at least a first heat sink and / or at least a second heat sink thermal and at least one further first heat sink and / or at least one further second heat sink.
- the cooling fins are located in the passage.
- the invention also relates to an electrical assembly comprising:
- the rotating electrical machine comprises a bearing, the first heat sink and / or the second heat sink being formed by continuity of material in the bearing.
- the rotating electrical machine comprises a fan, the cooling fluid being G air driven by the fan.
- Figure 1 shows an electrical diagram of an electrical assembly comprising an electronic system according to the invention
- Figure 2 shows a partial schematic sectional view of an electrical assembly comprising an electronic system according to a first embodiment of the invention
- Figure 3 shows a partial schematic sectional view of an electrical assembly comprising an electronic system according to a second embodiment of the invention
- Figure 4 shows a partial view of the electronic system according to a first variant of the first embodiment of the invention
- Figure 5 shows a partial view of the electronic system according to a second variant of the first embodiment of the invention
- FIG. 6 represents another partial view of the electronic system of FIG. 5.
- Figure 1 shows an electrical assembly 100 in which the invention can be implemented.
- the electrical assembly 100 is for example intended to be installed in a motor vehicle.
- the electrical assembly 100 firstly comprises an electrical power source 102 designed to supply a direct voltage U, for example between 20 V and 100 V, for example 48 V.
- the electric power source 102 comprises for example a battery.
- the electrical assembly 100 further comprises a rotating electrical machine 130 comprising several phase windings (not shown) intended to present respective phase voltages.
- the electrical assembly 100 further includes an electronic system 104.
- the electronic system 104 is a voltage converter 104.
- the assembly can perform a different function.
- the voltage converter 104 is connected between the electric power source 102 and the electric machine 130 to convert between the direct voltage U and the phase voltages.
- the voltage converter 104 first of all comprises a positive electric line 106 and a negative electric line 108 intended to be connected to the electric power source 102 to receive the direct voltage U, the positive electric line 106 receiving a high electric potential. and the negative electric line 108 receiving a low electric potential.
- the negative electric line receives for example a zero potential and is connected to a ground of the motor vehicle.
- the voltage converter 104 further comprises at least one electronic power module 110 comprising one or more phase electric lines 122 intended to be respectively connected to one or more phases of the electric machine 130, in order to supply their respective phase voltages.
- the voltage converter 104 comprises three electronic power modules 110 each comprising two phase electric lines 122 connected to two phases of the electric machine 130.
- the electric machine 130 comprises two three-phase systems each comprising three phases, and intended to be electrically out of phase by 120 ° with respect to each other.
- the first phase electric lines 122 of the power electronic modules 110 are respectively connected to the three phases of the first three-phase system, while the second phase electric lines 122 of the power electronic modules 110 are respectively connected to the three phases of the second. three-phase system.
- Each electronic power module 110 comprises, for each phase electric line 122, a first controllable switch 112 connected between the positive electric line 106 and the phase electric line 122 and a second controllable switch 114 connected between the phase electric line 122 and the negative electric line 108.
- the controllable switches 112, 114 are arranged so as to form a chopping arm, in which the phase electric line 122 forms a midpoint.
- Each controllable switch 112, 114 has first and second main terminals 116, 118 and a control terminal 120 for selectively opening and closing the switch.
- controllable 112, 114 between its two main terminals 116, 118 as a function of a control signal applied to it.
- the controllable switches 112, 114 are preferably transistors, for example field effect transistors with a metal-oxide-semiconductor structure (standing for “Metal Oxide Semiconductor Field Effect Transistor” or MOSFET) having a gate forming the terminal of control 120, and a drain and a source respectively forming the main terminals 116, 118.
- controllable switches 112, 114 each have the shape of a plate, for example substantially rectangular, having an upper face and a lower face.
- the first main terminal 116 extends on the underside, while the second main terminal 118 extends on the upper face. Further, the underside forms a heat dissipation face.
- the voltage converter 104 further comprises, for each electronic power module 110, a filtering capacitor 124 having a first terminal 126 and a second terminal 128 respectively connected to the positive electric line 106 and to the negative electric line 108.
- the positive power line 106, the negative power line 108 and the phase power lines 122 are rigid elements designed to withstand electric currents of at least 1 A. They preferably have a thickness of at least 1. mm.
- the electric machine 130 has both an alternator and an electric motor function. More specifically, the motor vehicle further comprises a heat engine (not shown) having an output axis to which the electric machine 130 is connected for example by a belt or by a chain or by a gear train (not shown). The heat engine is intended to drive the wheels of the motor vehicle through its output axis.
- the electrical machine supplies electrical energy to the electrical power source 102 from the rotation of the output shaft.
- the voltage converter 104 then operates as a rectifier.
- the electric machine drives the output shaft (in addition to or instead of the heat engine).
- the voltage converter 104 then operates as an inverter.
- the electric machine 130 is for example located in a gearbox or in a clutch of the motor vehicle or in place of the alternator.
- FIG. 2 shows the electrical assembly 100 comprising the electrical machine 130 and the electronic system 104 according to a first embodiment.
- the electric machine 130 comprises, in a known manner, a rotor 204 mounted on a shaft 205 and a stator 202.
- the shaft 205 is movable in rotation about an axis of rotation A and is guided in rotation on a front bearing 201 and a rear bearing 203.
- the front bearing 201 and the rear bearing 203 are fixed to the stator 202.
- the stator 202 is clamped between the front bearing and the rear bearing 203.
- the terms radial and radially are understood to be relative to the axis of rotation A.
- the front bearing and the rear bearing can be directly fixed to each other and the stator, mounted radially, with respect to the axis of rotation A, inside a cylindrical part of the front bearing and / or of the rear bearing.
- the electric machine can comprise a cylindrical housing clamped between the front bearing and the rear bearing.
- the stator is for example mounted fixed in the cylindrical housing.
- the stator comprises the phase windings of the electric machine 130.
- a fan 206 is rotatably linked directly or indirectly to the shaft 205.
- the rear bearing 203 comprises a generally cylindrical radially outer portion and an annular portion of radial orientation.
- a radial opening 223 is formed in the generally cylindrical portion and an axial opening 224 is formed in the radially oriented annular portion.
- the radial opening 223 can be made in the cylindrical housing.
- the fan 206 allows for the entrainment of a cooling fluid, for example air, between the axial opening 224 and the radial opening 223.
- a cooling fluid for example air
- the electronic system 104 is linked to the rear bearing 203.
- the electronic system 104 includes the power electronic module 110 allowing the conversion of a direct current to an alternating current.
- the power electronic module includes:
- first bus bar being connected to the positive electric line 106
- second bus bar being connected to the negative electric line 108
- a third bus bar capable of supplying a phase winding of the rotating electrical machine 130, the third bus bar is connected to the phase electrical line 122,
- control pin receiving a control signal making it possible to control the electronic power module, the control pin being connected to the control terminal 120,
- the electronic system 104 further includes an electronic control module 209 configured to generate the control signal.
- the electronic control module 209 comprises a second heat dissipation face 227.
- the electronic system 104 further comprises a first heat sink 207.
- the first heat sink 207 includes a third face 226 in thermal contact with the first heat dissipation face 225 of the power electronic module 110.
- the thermal contact is for example produced using a thermal paste or glue.
- the first heat sink 207 includes a fifth face 229 opposite the third face 226 of the first heat sink.
- the electronic system 104 also comprises a second heat sink 208.
- the second heat sink 208 comprises a fourth face 230 in thermal contact with the second heat dissipation face 227 of the electronic control module 209.
- the thermal contact is for example made by means of a thermal paste or glue.
- the second heat sink 208 includes a sixth face 231 opposite the fourth face 230 of the second heat sink 208.
- the first heat dissipation face 225, the second heat dissipation face 227, the third face 226 of the first heat sink and the fourth face 230 of the second heat sink have a generator substantially parallel to the axis of rotation A of the electrical machine 130 .
- the first heat dissipation face 225, the second heat dissipation face 227, the third face 226 of the first heat sink, and the fourth face 230 of the second heat sink are plane and are parallel to the axis of rotation A of the electrical machine 130.
- first heat dissipation face 225, the second heat dissipation face 227, the third face 226 of the first heat sink and the fourth face 230 of the second heat sink are not planar and are therefore example portions of a cylinder, for example portions of a cylinder with a circular base.
- the fifth face 229 of the first heat sink 207 may include first cooling fins 210.
- the sixth face 231 of the second heat sink may include second cooling fins 211.
- FIG. 3 shows the electrical assembly 100 comprising the electrical machine 130 and the electronic system 104 according to a second embodiment.
- the second embodiment is similar to the first embodiment.
- the first heat dissipation face 225 and the third face 226 of the first heat sink 207 have a first generator 232 which forms a first angle 213 strictly greater than 0 degrees and strictly less than 90 degrees with the axis of rotation A.
- the first heat dissipation face 225 and the third face 226 of the first heat sink 207 form a first angle 213 strictly greater than 0 degrees and strictly less than 45 degrees with G axis of rotation A.
- the electronic control module 209 of the electronic system 104 can also include a second heat dissipation face 227.
- the electronic system 104 comprises a second heat sink 208.
- second heat sink 208 is in thermal contact with the second heat dissipation face 227 of the electronic control module. Thermal contact is for example made using a thermal paste or glue.
- a sixth face 231 of the second heat sink 208 is opposite the fourth face 230 of the second heat sink 208.
- the second heat dissipation face 227 and the fourth face 230 of the second heat sink 208 have having a second generator 233 forming a second angle 212 strictly greater than 0 degrees and strictly less than 90 degrees with the axis of rotation A.
- the second angle 212 is strictly greater than 0 degrees and less than or equal to 45 degrees with the axis of rotation A.
- the fifth face 229 of the first heat sink 207 may include first cooling fins 210.
- the sixth face 231 of the second heat sink can include second cooling fins 211.
- the electronic system 104 does not include a second heat sink.
- a passage 228 for a cooling fluid is formed between at least a first heat sink 207 and / or at least a second heat sink 208 and at least one other first heat sink 207 and / or at least one other second heat sink 208.
- the passage 228 is for example located radially at the level of the axial opening 224.
- the fan 206 can then generate a flow 214 of a cooling fluid, for example ambient air, in the passage 228 then in the opening.
- axial 224 then in the fan 206 then in the radial opening 223 to be evacuated.
- the fins of the first heat sink and of the second heat sink are arranged in the passage 228 so as to promote heat exchange between the heat sinks and the flow 214.
- FIG 4, Figure 5 and Figure 6 show partial schematic views of a filter module of the electronic system 104 according to variants of the first embodiment of the invention. To facilitate reading of these figures, only the heat sinks have been shown.
- the electronic system 104 can comprise a plurality of electronic power modules 110 and a plurality of first heat sinks 207.
- each power electronic module 110 is in thermal contact with a first heat sink 207 which is specific to it.
- the electronic control module 209 can comprise several electronic submodules each comprising a second heat dissipation face 227.
- the electronic system 104 can then comprise a second heat sink 208 for each of the submodules. electronic.
- Each of the second heat dissipation faces 227 is respectively in thermal contact with a fourth face 230 of a second heat sink 208.
- Each submodule comprises for example a substrate, electrical conductors as well as electronic components.
- Each submodule comprises for example a single electronic card comprising conductive traces in / on the substrate.
- the submodules are for example interconnected by electrical conductors such as flexible electrical wires, an electrical sheet or an interconnector, for example an interconnector comprising electrical conductors overmolded in a plastic material.
- electrical conductors such as flexible electrical wires, an electrical sheet or an interconnector, for example an interconnector comprising electrical conductors overmolded in a plastic material.
- the variant shown in Figure 4 comprises for example three first heat sinks 207 and eight second heat sinks 208.
- the first three heat sinks 207 and three second heat sinks 208 are disposed radially on the outside so as to form a first polygon, here a hexagon.
- the other five second heat sinks 208 are disposed radially within the previous first and second heatsinks.
- These five second dissipators 208 are also arranged so as to form a second polygon, here also a hexagon.
- the first polygon and the second polygon have a different number of sides.
- One or more of the sides of the second polygon may not be occupied by a heat sink so as to free up space for other components, for example for a brush holder (not shown) of the electrical machine 130.
- the heat sinks arranged radially on the outside have their third face or fourth face oriented radially outwards so that the power electronic modules 110 and the submodules of the electronic control module 209 are arranged radially on the outside of the heat sinks with which they are in thermal contact.
- the radially internally disposed heat sinks have their fourth face oriented radially inward so that the submodules of the electronic control module 209 are disposed radially within the heat sinks with which they are in thermal contact.
- the passage 228 for the flow 214 of cooling fluid is formed between the heatsinks of the first polygon and the heatsinks of the second polygon.
- the cooling fins of the heat sinks are disposed in the passage 228.
- At least two heat sinks of the first heat sinks 207 and the second heat sinks 208 are connected by a junction portion 220 between the at least two heat sinks.
- the junction part is in continuity of material with the at least two heat sinks.
- the first three heat sinks 207 are connected by a junction part 220.
- the three second heat sinks 208 forming the rest of the first polygon are also connected by a junction part 220.
- the filter capacitor 124 includes a seventh heat dissipation face.
- the seventh heat dissipation face is in thermal contact with an eighth face 219 of a junction portion forming a third heat sink 221 for the filter capacitor 124.
- the thermal contact between the filter capacitor 124 and the eighth heat dissipation face is for example produced by means of a thermal paste or a thermal adhesive.
- the filtering capacitor 124 is for example a cylindrical chemical capacitor, one end of which forms the seventh heat dissipation face.
- the seventh heat dissipation face can also include all or part of the outer cylindrical surface of the cylindrical chemical capacitor.
- the third heat sink 221 connects either a first heat sink 207 and a second heat sink 208, or two second heat sinks 208.
- two third heat sinks 221 are each arranged between two second heatsinks 208 of the three second heat sinks 208 forming three of the sides of the first polygon.
- Third heat sinks 221 may include a plurality of eighth faces 219 so as to allow cooling of a plurality of filter capacitors 124.
- the two third heat sinks 221 each comprise two eighth faces 219.
- a fourth heat sink 222 may be formed at one end of a first heat sink 207 or a second heat sink 208.
- the fourth heat sink 222 includes an eighth face 219 in thermal contact with the seventh heat sink face of a. filtering capacity 124.
- the fourth heat sink 222 does not provide a direct junction between two first heat sinks 207 or between a first heat sink 207 and a second heat sink 208 or between two second heat sinks 208. This absence of direct junction is for example achieved by virtue of a slot 232 between the fourth heat sink and a first heat sink 207 or a second heat sink 208.
- the slot 232 makes it possible to limit the transfer of heat between the latter, first heat sink 207 or second heat sink 208.
- the variant of FIG. 4 comprises two fourth heat sinks 222. Each of the two fourth heat sinks 222 is formed at the end of a second heat sink. A slot 232 is made between each of the two fourth heat sinks and the first heat sink adjacent to the second heat sink.
- the variant of Figure 5 is similar to the variant of Figure 4. However in the variant of Figure 5 the cooling fins of the first heat sinks 207 and second heat sinks 208 are not located in the passage 228. The electronic modules power 110 and the submodules of the electronic control module 209 are located in the passage 228.
- This variant can allow greater proximity between the electronic power modules 110 and the submodules of the electronic control module 209. Such proximity can be advantageous for making electrical connections between the electronic power modules 110 and the electronic control module. command 209.
- Figure 6 is a schematic isometric view of the different heat sinks of the variant of Figure 5.
- the first heat sink 207 and / or the second heat sink 208 may be formed by continuity of material in one of the bearings 201, 203 of the electrical machine 130, in particular in the rear bearing 203.
- the rear bearing 203, the first heat sink thermal 207 and the second heat sink 208 are made in one piece, for example from an aluminum alloy.
- first heat sink 207 and the second heat sink 208 are made in one piece in continuity of material so as to form a cooling block.
- the cooling unit is for example fixed to the rear bearing, for example by means of a screw connection.
- first heat sink 207 and the second heat sink 208 are independently fixed to the rear bearing, for example by means of screw connections.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1911603A FR3102317B1 (fr) | 2019-10-17 | 2019-10-17 | Système électronique d’alimentation d’une machine électrique et ensemble électrique comprenant un tel système électronique |
PCT/EP2020/079252 WO2021074405A1 (fr) | 2019-10-17 | 2020-10-16 | Système électronique d'alimentation d'une machine électrique et ensemble électrique comprenant un tel système électronique |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4046259A1 true EP4046259A1 (fr) | 2022-08-24 |
Family
ID=69375510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20789633.3A Pending EP4046259A1 (fr) | 2019-10-17 | 2020-10-16 | Système électronique d'alimentation d'une machine électrique et ensemble électrique comprenant un tel système électronique |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4046259A1 (fr) |
JP (1) | JP2022552712A (fr) |
FR (1) | FR3102317B1 (fr) |
WO (1) | WO2021074405A1 (fr) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1588432A1 (de) * | 1967-04-07 | 1970-05-21 | Licentia Gmbh | Durch Halbleiter gesteuerter Elektromotor |
DE102005049261B3 (de) * | 2005-10-14 | 2007-03-29 | Siemens Ag | Kühlerlüfter für ein Kraftfahrzeug |
JP5496357B2 (ja) * | 2010-10-27 | 2014-05-21 | 三菱電機株式会社 | 電動パワーステアリング用モータ駆動制御装置 |
US20150042213A1 (en) * | 2013-08-07 | 2015-02-12 | Remy Technologies, Llc | Electric machine having venturi effect cooling enhancement |
JP2015122856A (ja) * | 2013-12-23 | 2015-07-02 | 株式会社デンソー | 回転電機一体型制御装置 |
WO2016057721A1 (fr) * | 2014-10-08 | 2016-04-14 | Remy Technologies, Llc | Électronique de machine électrique compatible avec un milieu de refroidissement double air et liquide |
JP6457884B2 (ja) * | 2015-05-19 | 2019-01-23 | 株式会社日立製作所 | 車両用駆動装置 |
GB2557359A (en) * | 2016-12-08 | 2018-06-20 | Edwards Ltd | Vacuum Pump |
FR3068565B1 (fr) | 2017-06-28 | 2020-11-27 | Valeo Equip Electr Moteur | Convertisseur de tension, systeme electrique comportant un tel convertisseur de tension et procede de fabrication d'un tel convertisseur de tension |
-
2019
- 2019-10-17 FR FR1911603A patent/FR3102317B1/fr active Active
-
2020
- 2020-10-16 WO PCT/EP2020/079252 patent/WO2021074405A1/fr unknown
- 2020-10-16 JP JP2022522979A patent/JP2022552712A/ja not_active Ceased
- 2020-10-16 EP EP20789633.3A patent/EP4046259A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
FR3102317B1 (fr) | 2022-05-27 |
WO2021074405A1 (fr) | 2021-04-22 |
JP2022552712A (ja) | 2022-12-19 |
FR3102317A1 (fr) | 2021-04-23 |
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