EP3510846A1 - Electrical device, particularly designed to be integrated into a voltage converter for motor vehicles - Google Patents
Electrical device, particularly designed to be integrated into a voltage converter for motor vehiclesInfo
- Publication number
- EP3510846A1 EP3510846A1 EP17771824.4A EP17771824A EP3510846A1 EP 3510846 A1 EP3510846 A1 EP 3510846A1 EP 17771824 A EP17771824 A EP 17771824A EP 3510846 A1 EP3510846 A1 EP 3510846A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electronic
- unit
- support
- electrically conductive
- electrical device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
- H05K7/142—Spacers not being card guides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
- H05K7/14322—Housings specially adapted for power drive units or power converters wherein the control and power circuits of a power converter are arranged within the same casing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0039—Galvanic coupling of ground layer on printed circuit board [PCB] to conductive casing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0215—Grounding of printed circuits by connection to external grounding means
Definitions
- the subject of the invention is an electrical device, in particular intended to be integrated in a voltage converter for a motor vehicle, as well as a method of assembling such an electrical device.
- the invention also relates to a voltage converter comprising such an electrical device and an electrical equipment comprising an electric machine and such a voltage converter.
- an electric motor particularly for a motor vehicle, comprises an inverter comprising electronic power modules arranged on a chassis and controlled by an electronic control card.
- the electronic power modules of the electric motor are powered by a power interface requiring two terminals.
- the power mass of the power interface is connected by an electric cable to the inverter, which results in the generation of electromagnetic disturbances.
- the chassis is electrically connected to the control electronics board to make a common mode filter between the chassis ground and the two terminals of the power interface.
- connection blade between a frame and an electronic control card.
- one end of the connection blade is screwed to a part having a potential to chassis ground, and the other end of the connection blade cooperates with a metallized port of the electronic control board.
- This second end is intended to be welded, in particular by wave soldering, on the electronic control board.
- this technical solution is expensive and bulky because it requires the use of specific parts, for example a connecting blade and a screw having an exclusion zone around its axis for the passage of specific tools, and the use of wave soldering on the electronic control board.
- the present invention aims to remedy these drawbacks by proposing an electrical device that does not require the addition of additional parts in order to electrically connect the potential of the chassis ground to the common mode filter.
- the subject of the invention is an electrical device, in particular intended to be integrated in a voltage converter for a motor vehicle, comprising: a support, the support being made of electrically conductive material and being electrically connected to an electrical reference potential ,
- an electronic unit disposed on the support, the electronic unit comprising at least one electrically conductive track, wherein the electronic unit is fixed to the support by interlocking an electrically conductive material so that the bouterollage electrically connects the electrically conductive track of the electronic unit to the support.
- the electrical device according to the invention makes it possible to reduce the cost of the electrical connection between the reference electric potential and the electronic unit, in particular while facilitating the mounting of the electronic unit within the voltage converter.
- such an electrical device allows a reduction in the number of parts in the device for electrically connecting the reference electrical potential and the electronic unit.
- the electrical device according to the invention may also comprise one or more of the following characteristics, considered individually or according to all the possible combinations:
- the support comprising at least one positioning member
- the electronic unit comprising a positioning orifice complementary to the positioning member of the support, and wherein the electronic unit is fixed to the support at least by pegging the positioning member support in the complementary positioning hole of the electronic unit;
- the electronic unit is an electronic control unit configured to control an electronic power unit, the electronic control unit being fixed to the support by interlocking an electrically conductive material so that the grounding electrically connects the electrically conductive track of the electronic control unit to the support; and or
- each positioning orifice of the electronic control unit comprises a connection pad made of electrically conductive material, the connection pad being in contact with the complementary positioning member of the support, the connection pad being electrically connected to the conducting track electrically from the electronic control unit; and / or the electrical device also comprises an electronic power unit, the support supporting the electronic power unit, the electronic control unit being electrically connected to the electronic power unit, and in which the support, the unit the power electronics and the electronic control unit each extend in substantially parallel planes and are superimposed on each other in that order; and or
- the electronic unit is an electronic power unit, the electronic power unit being fixed to the support by pegging an electrically conductive material so that the grounding electrically connects the track electrically conductive from the power electronics unit to the support; and or
- the electrical device also comprises an electronic control unit configured to control the electronic power unit, the electrically conductive track of the electronic power unit electrically connecting the electronic power unit to the electronic control unit, and in which the support, the electronic power unit and the electronic control unit each extend in substantially parallel planes and are superimposed on each other in this order; and or
- the electronic power unit is disposed at the bottom of a cavity of the support, and / or
- the electrically conductive track of the electronic unit is electrically connected to an electronic circuit of the electronic control unit, in particular an electronic filter; and or
- the electronic circuit of the electronic control unit is a common mode filter
- the electrically conductive track of the electronic unit is electrically connected to a temperature sensor
- the support of the electronic power unit is a heat sink, and / or the electronic power unit comprises at least one electronic power module, and / or the electronic control unit is an electronic control board.
- the invention also relates to a voltage converter for controlling an electrical energy exchanged between an electric machine and a power supply source comprising an electrical device according to the invention.
- the invention also relates to an electrical equipment comprising an electric machine and a voltage converter according to the invention, wherein the voltage converter is mounted on the electric machine.
- the invention also relates to a method of assembling an electrical device according to the invention, comprising at least the following steps: a step of providing a support and an electronic unit, the support being made of material electrically conductive and being electrically connected to a reference potential, the electronic unit being disposed on the support and comprising at least one electrically conductive track,
- a step of pegging during which the electronic unit is fixed on the support by interlocking an electrically conductive material so that the pegging electrically connects the electrically conductive track of the electronic unit to the support.
- FIGS. 1 and 2 show schematic views in section of FIG. an electrical device according to embodiments of the invention
- FIG. 3 is an enlarged sectional view of an electronic unit and a support of an electrical device according to the invention before pegging;
- FIG. 4 is an enlarged sectional view of an electric device according to one embodiment; of the invention,
- FIG. 5 represents an exploded view of the elements of a voltage converter comprising an electrical device according to one embodiment of the invention, before pegging, and
- FIGS 6a and 6b show flowcharts of the assembly methods of an electrical device according to embodiments of the invention.
- the invention relates to an electrical device that can be intended to be integrated in a voltage converter for a motor vehicle.
- the electrical device comprises a support and an electronic unit.
- the electronic unit may be, for example, an electronic power unit such as an electronic power module or an electronic control unit such as an electronic control board.
- the electronic unit comprises at least one electrically conductive track.
- the electronic unit can be arranged on the support.
- the support may be a heat sink configured to dissipate the heat generated by the electronic unit when the electronic unit is disposed on the support.
- the support 10 may comprise a cavity at the bottom of which the electronic unit is supported.
- the electronic unit may be supported on the support, for example on a wall of the support extending from the bottom of the cavity and around said support cavity.
- the support is made of electrically conductive material, for example aluminum.
- the support is electrically connected to an electrical reference potential, in particular referred to as ground potential of the chassis.
- the electronic unit is fixed to the support by interlocking an electrically conductive material, for example aluminum, so that the cutter electrically connects the electrically conductive track of the electronic unit to the support.
- an electrically conductive material for example aluminum
- the support may comprise one or a plurality of positioning members.
- a support positioning member may extend from the bottom of the support cavity in a direction transverse to said bottom.
- a positioning member is made of the same electrically conductive material as the support, so that a positioning member is an electrical conductor.
- the electronic unit may comprise one or a plurality of positioning orifices complementary to the positioning members of the support.
- the electronic unit can be fixed to the support at least by pegging the positioning members of the support in the complementary positioning holes of the electronic unit.
- such a fixing of the electronic unit to the support allows a mechanical strength of the electronic unit on the support, while allowing to connect the electronic unit to the reference electric potential of the support.
- the positioning members of the support are made of aluminum, so that the bouterollage of the electronic unit on the support is an aluminum bouterollage.
- FIG. 1 shows a support 10 and an electronic unit 20 before the electronic unit is jammed on the support.
- the support 10 comprises a positioning member 12 and the electronic unit 20 comprises a positioning orifice 22 complementary to the positioning member 12 of the support 10.
- the positioning member 12 of the support 10 and the orifice of positioning 22 of the electronic unit 20 cooperate with each other so as to position the electronic unit 20 on the support 10.
- FIG. 2 represents a part of an electrical device 30 according to the invention comprising a support 10 and an electronic unit 20 after jamming of the electronic unit on the support.
- a positioning member 12 of the support is riveted in a positioning orifice 22 of the electronic unit 20.
- FIG. 3 illustrates a first embodiment of an electrical device 30 according to the invention.
- the electronic unit is an electronic control unit 40, for example an electronic control card.
- the electronic control unit 40 is fixed to the support 10 by basting an electrically conductive material.
- the pegging of the electronic control unit 40 on the support 10 electrically connects the electrically conductive track of the electronic control unit 40 to the support 10.
- the electronic control unit 40 may comprise a connection pad 44 made of electrically conductive material, for example copper, disposed at each positioning orifice 42 of the electronic control unit 40.
- a positioning orifice 42 may have a substantially circular section, and comprise a connection pad 44 of substantially complementary shape to the shape of the positioning orifice 42.
- the electronic control unit 40 may be substantially flat in shape and comprise two faces.
- a patch pad 44 preferably extends on each face of the electronic control unit 40 and in the positioning port 42. Specifically, a patch pad 44 is present at each end of a positioning port 42 In other words, a patch pad 44 is present on each face of the electronic control unit 40, as well as on the walls of the electronic control unit 40 defining the positioning orifice 42.
- connection pad on both sides and in the positioning hole of the electronic control unit makes it possible to reinforce the electronic control unit when the electronic control unit is jammed on the support.
- each connection pad 44 may be in contact with a complementary positioning member 12 which is riveted to the support 10.
- Each patch pad 44 may be electrically connected to the electrically conductive track of the electronic control unit 40.
- the electrical device 30 may also comprise an electronic power unit 50, for example one or more electronic power modules.
- the electronic control unit 40 is configured to control the electronic power unit.
- the electronic power unit 50 can be supported by the bottom of the cavity 14 of the support 10.
- the electronic power unit 50 is fixed to the support 10, in particular by gluing and / or screwing.
- the electronic control unit 40 and the electronic power unit 50 are electrically connected, in particular via electrical connection elements 60 as represented in FIG. 3.
- FIG. 4 illustrates a second embodiment of an electrical device 30 according to the invention, in which the electronic unit is an electronic power unit 50, for example one or more electronic power modules.
- the support 10, and more precisely the bottom of the cavity 14 of the support 10 is configured to support the power electronic unit 50.
- the cavity 14 of the support 10 may comprise a protrusion 16 extending from the bottom of the cavity 14, in a direction substantially perpendicular to said bottom.
- the electronic power unit 50 can be supported by the protrusion 16 of the support 10.
- the electronic power unit 50 can be fixed to the support 10 by interlocking an electrically conductive material. More specifically, the pegging of the positioning members 12 of the support 10 in the complementary positioning holes 52 of the power electronics unit 50 electrically connects the electrically conductive track 54 of the power electronics unit 50 to the support 10.
- the electrical device 30 may also comprise an electronic control unit 40, for example an electronic control board, configured to control the electronic power unit 50.
- an electronic control unit 40 for example an electronic control board, configured to control the electronic power unit 50.
- the electrically conductive track 54 of the electronic power unit 50 can electrically connect the electronic power unit 50 to the electronic control unit 40.
- the support 10, the electronic power unit 50 and the electronic control unit 40 each extend in substantially parallel planes and are superimposed on each other in this manner. order.
- the electronic control unit 40 may comprise an electronic circuit, for example an electronic filter.
- the electronic circuit of the electronic control unit 40 may be a common mode filter.
- the electronic filter may comprise for example one or a plurality of inductors and / or one or a plurality of capacitors.
- the electrically conductive track of the electronic unit can be electrically connected to the electronic circuit of the electronic control unit 40. More specifically, in the first embodiment, the electrically conductive track of the electronic control unit 40 is electrically connected to the electronic circuit of the electronic control unit 40.
- the electrically conductive track 54 of the electronic power unit 50 is electrically connected to the electronic circuit of the electronic control unit 40.
- the electrical device according to the invention may also comprise one or a plurality of capacitors configured to stabilize a voltage received by the electrical device and to reduce the electromagnetic disturbances generated by the electronic units.
- the capacitors of the electrical device are electrically connected to the electronic control unit and to the electronic power unit, and can be supported by the support, for example in specific receiving areas of the support.
- the temperature of the capacitors of the electrical device in operation can reach a hundred degrees, for example 150 ° C.
- the electrically conductive track of the electronic unit can be electrically connected to a temperature sensor.
- the electrically conductive track of the electronic control unit 40 is electrically connected to a temperature sensor.
- a temperature sensor disposed near a connection pad of the electronic control unit makes it possible to measure the temperature of the support and consequently to calculate a temperature of the capacitors of the electrical device.
- the electrically conductive track 54 of the power electronics unit 50 is electrically connected to a temperature sensor.
- FIG. 1 An exploded view of the elements of an electrical device before rocketing are shown in FIG. 1
- the electrical device comprises a support 10, an electronic power unit 50, an electronic control unit 40 and an electrical connection bar 70.
- the electronic power unit 50 comprises three electronic power modules in FIG.
- the electronic power unit 50 comprises positioning holes 52, six in number in FIG. 5, and the support comprises positioning members 12, six positioning members 12 are shown in FIG. 5.
- the electronic unit of FIG. Power 50 is intended to be pegged to the support 10 by interlocking an electrically conductive material.
- the electrical connection bar 70 may be arranged between the electronic power unit 50 and the electronic control unit 40.
- the electrical connection bar 70 is configured to electrically connect the electronic power unit 50 and the electronic control unit. control 40.
- the electrical connection bar 70 may comprise positioning members 72, shown in FIG. 5.
- the positioning members 72 are preferably made of electrically insulating material, for example of plastic material. More specifically, the electrical connection bar 70 may be of substantially flat shape and include positioning members 72 extending from the plane of the electrical connection bar 70 in a direction transverse to said plane, in particular in the direction of an electronic unit .
- the electronic control unit 40 may comprise positioning orifices 42, of which there are seven in FIG. 5.
- the positioning orifices 42 of the electronic control unit 40 are intended to be riveted to the positioning members 72 of the bar. electrical connection 70 by interlocking an electrically insulating material.
- the invention also relates to a voltage converter comprising an electrical device as described above.
- a voltage converter comprising an electrical device as described above.
- An example of a voltage converter is illustrated in FIG.
- the voltage converter is for controlling electrical energy exchanged between an electric machine and a power source.
- the voltage converter can be mounted on the electric machine.
- Electrical equipment may comprise the electrical machine and the voltage converter according to the invention.
- the invention also relates to a method of assembling an electrical device according to the invention.
- the assembly method comprises a provisioning step, wherein a medium and an electronic unit as previously described are provided.
- the assembly method may comprise a supply step, in particular denoted S 10 in FIGS. 6a and 6b, of a support, an electronic control unit and an electronic power unit.
- the assembly method may comprise, following the supply step, an assembly step, denoted S20 in FIGS. 6a and 6b, in which the electronic power unit is disposed on the support.
- the electronic power unit is disposed at the bottom of a cavity of the support.
- the assembly method also comprises a step of pegging, during which the electronic unit is fixed on the support by pegging.
- Figure 6a shows a method of assembling an electrical device according to the first embodiment.
- the assembly method may comprise, after the supply step S 10 and the assembly step S20, an assembly step S30 in which the electronic control unit is disposed on the support.
- the assembly method can also comprise a connection step S40, in which the electronic power unit and the electronic control unit are electrically connected.
- the assembly method may comprise, following the connection step S40, a step of peeling S50 of the electronic control unit on the support.
- Figure 6b shows a method of assembling an electrical device according to the second embodiment.
- the assembly method may comprise, following the supply step S 10 and the assembly step S20, a step of pegging S60 of the electronic power unit on the support.
- the assembly method may also comprise, following the step of peeling S60 and prior to the connection step S40, an assembly step S30 in which the electronic control unit is disposed on the support.
- the assembly method may comprise the connection step S40, wherein the electronic power unit and the electronic control unit are electrically connected.
- the assembly method may comprise a stub step S70, wherein the electronic control unit is pegged on the electrical connection bar by a plastic peg.
- the electrical device according to the invention has been described in the context of a voltage converter which manages an energy exchange between an electrical machine on board a motor vehicle and an electrical network of said motor vehicle.
- the invention is not limited to the embodiments described and illustrated, which have been given only as examples. On the contrary, other applications of the electrical device according to the invention are also possible without departing from the scope of the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1658407A FR3056074B1 (en) | 2016-09-09 | 2016-09-09 | ELECTRICAL DEVICE, IN PARTICULAR FOR INTEGRATING IN A VOLTAGE CONVERTER FOR A MOTOR VEHICLE |
PCT/FR2017/052392 WO2018046867A1 (en) | 2016-09-09 | 2017-09-08 | Electrical device, particularly designed to be integrated into a voltage converter for motor vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3510846A1 true EP3510846A1 (en) | 2019-07-17 |
Family
ID=57960514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17771824.4A Withdrawn EP3510846A1 (en) | 2016-09-09 | 2017-09-08 | Electrical device, particularly designed to be integrated into a voltage converter for motor vehicles |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3510846A1 (en) |
FR (1) | FR3056074B1 (en) |
WO (1) | WO2018046867A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3137529A1 (en) * | 2022-06-30 | 2024-01-05 | Valeo Siemens Eautomotive France Sas | SWITCHING CELL |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI982110A0 (en) * | 1998-09-30 | 1998-09-30 | Nokia Mobile Phones Ltd | Procedure for installing circuit boards in EMC display and EMC display |
US6259032B1 (en) * | 1999-05-28 | 2001-07-10 | Agilent Technologies Inc. | Circuit board grounding scheme |
IT249934Y1 (en) * | 1999-07-13 | 2003-06-09 | Gianfranco Natali | DRAWN DRAWING WITH CODULE, SUITABLE FOR HOUSING ELECTRIC AND ELECTRONIC CIRCUITS. |
US20140211432A1 (en) * | 2013-01-30 | 2014-07-31 | Apple Inc. | Multipurpose fastener for electronic devices |
-
2016
- 2016-09-09 FR FR1658407A patent/FR3056074B1/en not_active Expired - Fee Related
-
2017
- 2017-09-08 EP EP17771824.4A patent/EP3510846A1/en not_active Withdrawn
- 2017-09-08 WO PCT/FR2017/052392 patent/WO2018046867A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2018046867A1 (en) | 2018-03-15 |
FR3056074B1 (en) | 2018-08-17 |
FR3056074A1 (en) | 2018-03-16 |
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