• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a voltage converter (10), in particular for supplying power to an electric machine for a motor vehicle, comprising: - at least two electronic power units (20) configured to convert an electric voltage, each electronic power unit Apparatus (20) comprising two switching arms; - a filter block (30) configured to filter the input voltage of the electronic power unit (20), the at least two electronic power units (20) and the filter block (30) being electrically connected via each switching arm of said power electronic units (20), and wherein the distances between each switching arm and the filter block (30) are substantially identical.
    公开号:FR3058008A1
    申请号:FR1660235
    申请日:2016-10-21
    公开日:2018-04-27
    发明作者:Manuel Falguier；Michael Sanches；Philippe Baudesson
    申请人:Valeo Equipements Electriques Moteur SAS；
    IPC主号:
    专利说明:

    Holder (s): VALEO ELECTRIC EQUIPEMENTS MOTOR Simplified joint-stock company.
    Extension request (s)
    Agent (s): VALEO MOTOR CONTROL SYSTEMS.
    vX) VOLTAGE CONVERTER FOR POWERING AN ELECTRIC MACHINE FOR A MOTOR VEHICLE.
    FR 3 058 008 - A1
    The invention relates to a voltage converter (10), in particular for supplying power to an electric machine for a motor vehicle, comprising:
    - at least two electronic power units (20) configured to convert an electrical voltage, each electronic power unit (20) comprising two switching arms,
    - a filter block (30) configured to filter the electrical input voltage of the electronic power unit (20), the at least two electronic power units (20) and the filter block (30) being electrically connected via each switching arm of said electronic power units (20), and in which the distances between each switching arm and the filter block (30) are substantially identical.
    -1 Voltage converter intended to supply power to an electric machine for a motor vehicle
    The invention relates to a voltage converter, in particular for supplying power to an electric machine for a motor vehicle.
    The invention also relates to electrical equipment comprising an electrical machine and such a voltage converter.
    In general, an electric motor, in particular for a motor vehicle, comprises a voltage converter, supported by a chassis, comprising electronic power units controlled by an electronic control unit.
    The voltage converter may also include a block of capacitors configured to stabilize an electrical voltage received by the electronic power units and to reduce the electromagnetic disturbances generated by the electronic power and control units.
    In general, the capacitor block is integrated within the remote voltage converter of the electronic power units, the capacitors of the capacitor block being large.
    However, the distance between the capacitor block and the electronic power units 20 induces the presence of a parasitic capacitance within the voltage converter.
    In order to reduce or even eliminate this parasitic capacity, there are voltage converters in which the electronic power units include ceramic capacitors, integrated directly within the electronic power units, so as to filter the input voltage of the units power electronics. However, this technical solution is expensive and involves a modification of the method of assembling the electronic power units, in particular by adding a step of bonding the ceramic capacitors on the electronic power units.
    -2II also exist voltage converters comprising an electrical connector configured to electrically connect the capacitors of the capacitor block to the electronic power units. However, this technical solution is expensive and bulky. Indeed, since the capacitors and the electronic power units do not have the same dimensions, the electrical connector has a particular design which is difficult to integrate within the voltage converter.
    The present invention aims to remedy these drawbacks by proposing a voltage converter making it possible to minimize the distance between the block of capacitors and the electronic power units, and consequently to reduce the electromagnetic disturbances within the voltage converter, without increasing it. cost and size.
    To this end, the subject of the invention is a voltage converter, in particular intended to supply power to an electric machine for a motor vehicle, comprising:
    at least two electronic power units configured to convert an electrical voltage, each electronic power unit comprising two switching arms, a filter block configured to filter the input electrical voltage of the electronic power unit, the at least two electronic power units and the filter unit being electrically connected via each switching arm of said electronic power units, and wherein the distances between each switching arm and the filter unit are substantially identical.
    Advantageously, the configuration of the voltage converter according to the invention, and in particular a substantially identical distance between the electronic power units and the filter block, makes it possible to reduce the parasitic electromagnetic disturbances emitted by the electronic power units within
    -3 of the voltage converter, and therefore to optimize the electromagnetic compatibility between the voltage converter and the electrical machine.
    The voltage converter according to the invention may also include one or more of the following characteristics, considered individually or in all possible combinations:
    the filter block comprising at least two filter units, the minimum distance between the switching arms of a power electronic unit and a filter unit is substantially identical to the minimum distance between the switching arms of the other electronic unit power and the other filter unit; and / or the minimum distance between each switching arm of each electronic power unit and a filtering unit is less than 10 mm; and / or the voltage converter also comprises an electrical connector configured to electrically connect the filter block to each switching arm of each electronic power unit; and / or the at least two electronic power units are arranged one next to the other, and in which the filter block extends longitudinally along the direction of arrangement of the electronic power units so that the distances between each switching arm and the filter block are substantially identical; and / or the voltage converter comprises at least three electronic power units, and in which the at least three electronic power units are aligned one beside the other, and in which the filter block extends substantially parallel to the direction of alignment of the electronic power units so that the distances between each switching arm of each electronic power unit and the filter block are substantially identical; and / or the filter unit comprising at least one filter unit, such that the at least two electronic power units are separated by the at least
    -4 a filter unit so that the minimum distances between each switching arm and the filter unit are substantially identical; and / or the voltage converter comprises at least three electronic power units, the filter unit comprising at least three filter units, an electronic power unit being separated from another electronic power unit by a filter unit so that the minimum distances between each switching arm of each electronic power unit and a filtering unit are substantially identical; and / or the electronic power units are regularly distributed along a closed curve, a filtering unit being arranged between two successive electronic power units; and / or the voltage converter also comprises a heat sink comprising a support for receiving the at least two electronic power units and the filter block, the reception support comprises at least one cavity for receiving the filter block and a zone for respective reception of each electronic power unit; and / or the heat sink also comprises a cover and a metal seal, the metal seal being arranged between the receiving support and the cover; and / or the heat sink comprises a cooling circuit comprising a channel for circulation of a cooling fluid; and / or the filter unit comprising at least one filter unit comprising a substantially planar lower part arranged facing the bottom of said receiving cavity and a side wall extending from the lower part in a substantially perpendicular direction at said lower part, the cooling circuit comprising a first portion extending substantially parallel to the side wall of the at least one filter unit, the first portion of the cooling circuit being adjacent to the side wall of the filter unit ; and / or the first portion comprises an external face of a side wall of the coolant circulation channel; and or
    The reception support comprises first and second support planes, the first support plan comprising at least one reception cavity for the filtering unit and the second support plan comprising at least one reception area for an electronic power unit, the cooling circuit comprising a first part extending substantially parallel to the first support plane and a second part extending substantially parallel to the second support plane; and / or each electronic power unit comprising a flat substrate comprising an upper face and a lower face, the lower face of each electronic power unit being arranged opposite the reception area of the heat sink, the cooling circuit comprising a second portion extending substantially parallel to the underside of each electronic power unit, the electronic power unit, the receiving zone and the second portion of the cooling circuit being superimposed on each other; and / or the second portion comprises an external face of a bottom wall of the coolant circulation channel; and / or an electronic power unit comprises an electronic power module, and a filtering unit comprises two capacitors.
    Advantageously, a minimum distance between the switching arms of the electronic power units and the filtering unit makes it possible to limit the creation of a parasitic capacitance, and consequently to limit the electromagnetic disturbances emitted within the voltage converter.
    In addition, a voltage converter according to the invention comprising a heat sink comprising a first portion extending parallel to the side wall of a filter unit of the filter block and a second portion extending parallel to each electronic unit of power allows efficient cooling of the electronic power units and the voltage converter filter block. In addition, such a heat sink allows a simplification of the manufacturing process of the voltage converter, without inducing a pressure drop in the filter units of the filter block.
    Advantageously, a voltage converter according to the invention comprising a heat sink comprises different support planes makes it possible to compensate for the difference in size between the electronic power units and the filtering units. Indeed, in such a voltage converter, the electrical connections between the electronic power units and the filtering units are minimized, and consequently the electromagnetic losses liable to be generated within the voltage converter are limited.
    The invention also relates to electrical equipment comprising an electrical machine and a voltage converter according to the invention intended to control an electrical energy exchanged between the electrical machine and an external electrical network, and in which the voltage converter is mounted on the electric machine.
    Other characteristics and advantages of the present invention will appear on reading the detailed description of embodiments given by way of nonlimiting examples and illustrated, accompanied by the following figures:
    Figures 1 and 2 show top views of two voltage converters according to one embodiment of the invention, Figures 3, 4, 5 and 6 show exploded views of voltage converters according to embodiments of the invention, FIG. 7 represents an exploded view of a heat sink of a voltage converter according to an embodiment of the invention, and FIGS. 8 and 9 represent sectional views of two voltage converters according to an embodiment realization of the invention.
    It should be noted that these drawings have no other purpose than to illustrate the text of the description and do not in any way constitute a limitation of the scope of the invention.
    In the various figures, similar elements are designated by identical references.
    The invention relates to electrical equipment, in particular for a motor vehicle, comprising an electrical machine and a voltage converter.
    In particular, the voltage converter can be mounted on the electric machine.
    The voltage converter is used to control electrical energy exchanged between the electrical machine and an electrical power source.
    The voltage converter can be installed in a motor vehicle. The voltage converter can for example be a voltage inverter.
    The source of electrical power can be an external electrical network, notably an electrical network of a motor vehicle. An electrical network is for example an electrical network supplied with an electrical voltage of + 48V. Preferably, the electrical network is a continuous electrical energy network. The electrical network can include a battery supplying said electrical network.
    Two examples of a voltage converter 10 according to the invention are shown in Figures 1 and 2.
    The voltage converter 10 is in particular intended to supply power to an electric machine for a motor vehicle.
    A voltage converter 10 comprises at least two electronic power units 20, for example three electronic power units 20 in FIGS. 1 and 2, configured to convert an electrical voltage. In particular, an electronic power unit can convert an alternating voltage into a direct voltage, and vice versa.
    An electronic power unit 20 can be an electronic power module.
    An electronic power unit 20 can comprise one or a plurality of electronic components, for example a plurality of semiconductor electronic chips, in particular bare chips, mounted on a planar substrate.
    In particular, an electronic power unit 20 can comprise one or a plurality of power traces.
    A power trace can be electrically connected to the plurality of electronic components.
    A trace of power is an electrically conductive trace, in particular metallic, for example made of copper. A trace of power can be a metal blade or a metal bar. A trace of power is intended to transmit an electric current between the electric power source and the electric machine.
    For example, an electronic power unit 20 may include a first power trace, a second power trace and a third power trace. The first trace of power can be electrically connected to a first pole of the electrical network, for example, to a pole of positive polarity + 48V. The second power trace can be electrically connected to a second pole of the electrical network, for example, to a pole of negative polarity -48V or to the ground of the electrical power source, for example equal to 0V. The third power trace can be electrically connected to a phase (φ) of the electric machine. The first, second and third traces of power are distinct from each other and may be partly overmolded with electrically insulating material, for example plastic material.
    The voltage converter 10 comprises a filter block 30 configured to filter the electrical input voltage of the electronic power unit 20. A filter block 30 can comprise one or a plurality of filter elements, for example a plurality of capacitors.
    Each electronic power unit 20 comprises two switching arms 22. A switching arm 22 can comprise portions of power traces and electronic components.
    The switching arms 22 of an electronic power unit 20 make it possible to switch the electronic power unit 20 between two states. In particular, when starting the electric motor of the motor vehicle, the electronic power units require a significant supply of electrical energy. The traces of power of the electronic power units are electrically connected to capacitors of the filter block, which allow, in place of the vehicle battery, to temporarily supply a supply of electrical energy necessary to the electronic power units during a significant power requirement, especially when starting the electric motor. The switching arms 22 of the electronic power units make it possible to switch the electronic power units 20 between these two states.
    The electronic power units 20 and the filter unit 30 are electrically connected via each switching arm 22 of the electronic power units 20.
    The distances between each switching arm 22 of the electronic power units 20 and the filter unit 30 are substantially identical.
    By substantially identical distance between each switching arm of the electronic power units and the filter unit, it is meant that the distance between the switching arms of a first electronic power unit and of a filter unit can be greater than or equal at 85% of the distance between the switching arms of a second electronic power unit and the filtering unit and less than or equal to 115% of the distance between the switching arms of the second electronic power unit and of the filtering unit the filter unit. Preferably, the distance between the switching arms of the first electronic power unit and the filter unit can be between 95% and 105% of the distance between the switching arms of the second electronic power unit and the filter unit. 'filter unit.
    By limiting the difference between the distances between the switching arms of the electronic power units and the filtering units of the filtering unit, the electromagnetic disturbances likely to appear during circulation of
    - ίο current in the power traces of the electronic power units are limited.
    Preferably, the distances between each switching arm 22 of the electronic power units 20 and the filter unit 30 are equal.
    Advantageously, an identical distance between the electronic power units and the filter block makes it possible to make these electromagnetic disturbances negligible.
    In other words, a symmetry between the distances between the switching arms of the electronic power units and the filter units of the filter block makes it possible to optimize the electromagnetic compatibility between the voltage converter and the electric machine.
    The filter block 30 can comprise at least two filter units 32, for example three filter units 32 in FIGS. 1 and 2. A filter unit 32 corresponds to a grouping of filter elements, for example two filter elements . As shown in FIGS. 1 and 2, the filter block 30 comprises three filter units of two filter elements, here capacitors.
    The minimum distance between the switching arms 22 of an electronic power unit 20 and a filtering unit 32 can be substantially identical to the minimum distance between the switching arms 22 of another electronic power unit 20 and a another filter unit 32. For example, as shown in FIGS. 1 and 2, the minimum distance between the switching arms 22 of an electronic power unit 20 and a filter unit 32 is identical to the minimum distance between the arms 22 for switching the two other electronic power units 20 and the other two filtering units 32.
    The minimum distance between each switching arm 22 of each electronic power unit 20 and a filtering unit 32 can be less than 10 mm.
    the voltage converter 10 can also include an electrical connector 40. Such a voltage converter 10 is for example shown in FIGS. 3 and 4.
    The electrical connector 40 is configured to electrically connect the filter block 30 to each switching arm 22 of each electronic power unit 20.
    The electrical connector 40 can include traces of power. For example, the electrical connector 40 may comprise a first trace of power, for example electrically connected to a pole of positive polarity + 48V, a second trace of power, for example electrically connected to a pole of negative polarity -48V or to ground from the electric power source, for example equal to 0V, and a third trace of power, for example electrically connected to a phase (φ) of the electric machine. The first, second and third traces of power are distinct from each other and may be partly overmolded with electrically insulating material, for example plastic material.
    As shown in Figures 1 and 3, the voltage converter 10 comprises three electronic power units 20 arranged next to each other. In other words, the three electronic power units 20 are aligned one next to the other.
    The filter block 30 extends longitudinally along the arrangement direction of the electronic power units 20.
    The distances between each switching arm 22 of each electronic power unit 20 and the filter unit 30 can be substantially identical.
    In other words, the filter unit 30 extends substantially parallel to the alignment direction of the electronic power units 20 so that the distances between each switching arm 22 of each electronic power unit 20 and the filter unit 30 are substantially identical.
    - 12 3058008
    More specifically, as shown in FIG. 3, the distance between the switching arms 22 of a power electronic unit 20 and a filtering unit 32 of the filtering block 30 is equal to the distance between the switching arms 22 of another electronic power unit 20 and another filter unit 32 of the filter unit 30.
    As shown in FIGS. 2 and 4, the filter unit 30 comprises at least one filter unit 32 arranged such that the electronic power units 20 are separated by one filter unit 32. The minimum distances between each switching arm 22 and the filter unit 32 can be substantially identical.
    The voltage converter 10 can comprise at least three electronic power units 20 and the filter unit 30 can comprise at least three filter units 32.
    An electronic power unit 20 can be separated from another electronic power unit 20 by a filter unit 32 so that the minimum distances between each switching arm 22 of each electronic power unit 20 and a filter unit 32 are substantially identical.
    In particular, the electronic power units 20 can be regularly distributed along a closed curve, and a filtering unit 32 can be arranged between two successive electronic power units 20.
    In other words, the filter block has a star shape, in particular a three-pointed star. One branch of the filter block includes a filter unit. The branches of the star shape extend radially from a central point of the filter block and are evenly spaced. Each electronic power unit is arranged between two branches of the star shape of the filter block, so that a branch of the star shape separates two electronic power units.
    - 13 The voltage converter 10 can also include a heat sink 50, notably visible in FIGS. 3 and 4.
    The heat sink 50 may include a support 60 for receiving the electronic power units 20 and the filter unit 30.
    The reception support 60 may include a reception cavity for the filter unit 30 and a reception zone for the electronic power units 20.
    For example, in FIG. 5, the reception support 60 includes a cavity 52 for receiving the three filter units 32 of the filter block 30 and a reception area 54 for the electronic power units 20.
    In FIG. 6, the reception support 60 comprises three reception cavities of the filter block 30, each reception cavity 52 receiving a filter unit 32, and three reception zones 54 of the electronic power units 20, each reception zone 54 receiving an electronic power unit 20.
    The heat sink 50 may also include a cover 56 and a metal gasket 58, particularly shown in Figure 7. In other words, the heat sink 50 can be made in three parts.
    Preferably, the heat sink is made of electrically conductive material, for example aluminum. The reception support 60 and the cover 56 can be produced by pressure injection, and assembled using the metal seal 58. More specifically, the metal seal 58 can be arranged between the reception support 60 and the cover 56.
    Advantageously, such a heat sink has thin walls, which makes it possible to reduce the weight and the overall size of the voltage converter and to improve the heat exchanges between the electronic power units and the heat sink.
    In addition, such a heat sink allows a reduction in the production costs of the voltage converter, in particular thanks to a reduction in the cost of materials and the use of less expensive manufacturing methods, for example manufacturing methods which do not require an additional machining step.
    - 14 The heat sink 50 may include a cooling circuit 62 comprising a channel for circulation of a cooling fluid. For example, inlet and outlet ports of the cooling circuit 62 are shown in FIGS. 5 and 6.
    Such a cooling circuit makes it possible to have a flow rate of fluid, in particular water, of 14 liters per minute, with a pressure drop of less than 80mbar. Such a cooling circuit ensures permanent flow in the voltage converter.
    Advantageously, the heat sink comprising a cooling circuit allows efficient cooling of the electronic power units and of the filter block within the voltage converter.
    As shown in FIGS. 8 and 9, a filtering unit 32 of the filtering unit can comprise a substantially planar lower part 34 arranged facing 15 the bottom of the receiving cavity 52 of the receiving support 60. In particular, a electrically insulating material, for example thermal glue, may be present between the filter unit 32 and the bottom of the reception cavity 52 of the reception support 60. In other words, the lower part 34 of the filter unit 32 may be in contact with an electrically insulating material deposited on the bottom of the receiving cavity 52 of the receiving support 60.
    A filter unit 32 can also include a side wall 36 extending from the lower part 34 in a direction substantially perpendicular to said lower part 34.
    In other words, a filter unit 32 can have a substantially cylindrical shape comprising two bases connected by a side wall.
    The cooling circuit may include a first portion 64 extending substantially parallel to the side wall 36 of the filter unit
    32. The first portion 64 of the cooling circuit 62 may comprise an external face of a side wall of the channel for circulation of the cooling fluid.
    Preferably, the first portion 64 of the cooling circuit 62 is adjacent to the side wall 36 of the filter unit 32. In particular, the cooling circuit 62 is arranged so as to cool the side wall 36 of the filter unit 32.
    Advantageously, the cooling circuit arranged so as to cool the side walls of the filter units, rather than the lower parts of the filter units, makes it possible to simplify the manufacturing process of the voltage converter, without inducing a pressure drop at the level of the filtering units.
    As shown in FIGS. 8 and 9, an electronic power unit 20 can comprise a planar substrate 24 comprising an upper face 26 and a lower face 28. Preferably, the lower face 28 of each electronic power unit 20 can be arranged in vis-à-vis the reception area 54 of the heat sink 50. In particular, an electrically insulating material, for example thermal glue, may be present between each electronic power unit 20 and the reception area 54 of the heat sink 50. In other words, the underside 28 of each electronic power unit 20 can be in contact with an electrically insulating material deposited on the receiving zone 54 of the heat sink 50.
    The cooling circuit can comprise a second portion 66 extending substantially parallel to the lower face 28 of each electronic power unit 20. The second portion 66 of the cooling circuit can comprise an external face of a bottom wall of the coolant circulation. The cooling circuit is arranged so as to cool the lower face 28 of each electronic power unit 20.
    In particular, the electronic power unit 20, the receiving cavity 52 and the second portion 66 of the cooling circuit 62 can be superimposed on each other.
    The reception support 60 may include a first support plane and a second support plane, respectively denoted A and B in FIGS. 8 and 9.
    - 16 In particular, the first and second support planes A, B of the reception support 60 extend over different heights. In other words, the first and second support planes A, B extend parallel to one another.
    The first support plane A may include at least one receiving cavity 522 of the filter unit 30.
    The second support plane B can comprise at least one reception area 54 of an electronic power unit 20.
    The cooling circuit 62 may comprise first part extending substantially parallel to the first support plane A and a second part extending substantially parallel to the second support plane B.
    As the filter units 32 of the filter block 30 do not have the same dimensions as the electronic power units 20, the electronic power units 20 are arranged on the second support plane B, while the filter units 32 are arranged on the first support plane A.
    The difference in height between the first and second support planes A, B makes it possible to compensate for the difference in dimensions between the electronic power units 20 and the filter block.
    In particular, the voltage converter comprising an electrical connector, the distance between the electrical connector and an electronic power unit is substantially equal to the distance between the electrical connector and a filtering unit.
    Advantageously, the difference in height between the support planes of the electronic power units and of the filtering units makes it possible to minimize the length of the power trace of the electrical connector electrically connecting a filtering unit to an electronic power unit, and thus to limit the electromagnetic disturbances likely to be generated within the voltage converter.
    Furthermore, the difference in height between the support planes of the electronic power units and the filtering units makes it possible to avoid the integration of ceramic capacitors within the electronic power units.
    - 17 3058008
    The voltage converter according to the invention has been described in the context of a motor vehicle. Of course, the invention is in no way limited to the embodiments described and illustrated, which have been given only by way of examples. On the contrary, other applications of the voltage converter according to the invention are also possible within the scope of the invention.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    E Voltage converter (10), in particular intended to supply power to an electric machine for a motor vehicle, comprising:
    5 - at least two electronic power units (20) configured to convert an electrical voltage, each electronic power unit (20) comprising two switching arms (22), a filter block (30) configured to filter the electrical voltage d 'input of T electronic power unit (20),
    The at least two electronic power units (20) and the filter block (30) being electrically connected via each switching arm (22) of said electronic power units (20), and in which the distances between each switching arm (22) and the filter block (30) are substantially identical.
    [2" id="c-fr-0002]
    2. Voltage converter according to claim 1, the filter unit (30) comprising at least two filter units (32), the minimum distance between the switching arms (22) of an electronic power unit (20) and a filter unit (30) is substantially identical to the minimum distance between the arms of
    20 switching (22) of the other electronic power unit (20) and the other filtering unit (32).
    [3" id="c-fr-0003]
    3. Voltage converter according to one of claims 1 or 2, wherein the minimum distance between each switching arm (22) of each unit
    25 power electronics (20) and a filter unit (32) is less than 10 mm.
    - 19
    [4" id="c-fr-0004]
    4. Voltage converter according to claim 1, in which the at least two electronic power units (20) are arranged side by side, and in which the filter block (30) extends longitudinally along the arrangement direction of the electronic power units (20) so that the
    [5" id="c-fr-0005]
    5 distances between each switching arm (22) and the filter block (30) are substantially identical.
    5. Voltage converter according to one of claims 1 to 3, the filter unit (30) comprising at least one filter unit (32), such that the at least two
    10 electronic power units (20) are separated by the at least one filter unit (32) so that the minimum distances between each switching arm (22) and the filter unit (32) are substantially identical.
    [6" id="c-fr-0006]
    6. Voltage converter according to one of claims 1 to 5, comprising
    15 also a heat sink (50) comprising a receiving support (60) of the at least two electronic power units (20) and the filter block (30), the receiving support (60) comprises at least one receiving cavity (52) of the filter unit (30) and a respective reception area (54) of each electronic power unit (20).
    [7" id="c-fr-0007]
    7. Voltage converter according to claim 6, the heat sink (50) comprises a cooling circuit (62) comprising a circulation channel for a cooling fluid.
    25
    [8" id="c-fr-0008]
    8. Voltage converter according to claim 7, the filter unit (30) comprising at least one filter unit (32) comprising a substantially planar lower part (34) arranged opposite the bottom of said receiving cavity (52) and a side wall (36) extending from the lower part (34) in a direction substantially perpendicular to said lower part (34), the circuit for
    -20 cooling (62) comprising a first portion (64) extending substantially parallel to the side wall (36) of the at least one filter unit (32), the first portion (64) of the cooling circuit (62) being adjacent to the side wall (36) of the filter unit (32).
    [9" id="c-fr-0009]
    9. Voltage converter according to claim 7 or 8, in which each electronic power unit (20) comprises a planar substrate (24) comprising an upper face (26) and a lower face (28), the lower face (28) of each electronic power unit (20) being arranged opposite the reception area (54)
    [10" id="c-fr-0010]
    10 of the heat sink (50), the cooling circuit (62) comprising a second portion (66) extending substantially parallel to the underside (28) of each electronic power unit (20), the electronic power unit (20), the receiving zone (54) and the second portion (66) of the cooling circuit (62) being superimposed on each other.
    10. Voltage converter according to one of claims 1 to 9, wherein an electronic power unit (20) comprises an electronic power module, and a filtering unit (32) comprises two capacitors.
    2/6
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    US20140345492A1|2012-02-13|2014-11-27|Kabushiki Kaisha Toshiba|Drive control equipment for a vehicle|
    EP3609066B1|2018-08-07|2021-02-24|Mahle International GmbH|Electric power inverter|
    FR3089713B1|2018-12-05|2020-12-25|Safran Electrical & Power|Electric filtering system of an intelligent electric motor with decoupled multi-windings and associated intelligent electric motor.|
    FR3100668B1|2019-09-06|2021-07-30|Valeo Systemes De Controle Moteur|Electronic board for voltage converter|
    法律状态:
    2017-10-31| PLFP| Fee payment|Year of fee payment: 2 |
    2018-04-27| PLSC| Publication of the preliminary search report|Effective date: 20180427 |
    2018-10-30| PLFP| Fee payment|Year of fee payment: 3 |
    2019-10-31| PLFP| Fee payment|Year of fee payment: 4 |
    2020-10-30| PLFP| Fee payment|Year of fee payment: 5 |
    2021-10-29| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1660235|2016-10-21|
    FR1660235A|FR3058008B1|2016-10-21|2016-10-21|VOLTAGE CONVERTER FOR POWER SUPPLYING AN ELECTRIC MACHINE FOR A MOTOR VEHICLE|FR1660235A| FR3058008B1|2016-10-21|2016-10-21|VOLTAGE CONVERTER FOR POWER SUPPLYING AN ELECTRIC MACHINE FOR A MOTOR VEHICLE|
    EP17197817.4A| EP3312983A1|2016-10-21|2017-10-23|Voltage converter for supplying power to an electric machine for a motor vehicle|
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