• 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 connection device (6) according to the invention is provided for a rotating electrical machine (2) of the type supplied by means of a plurality of first pins arranged on a bearing (13) of an axis of the machine (2) at predetermined angular intervals around this axis at a first predetermined distance. According to the invention, the connection device (6) comprises a plurality of second plugs arranged around said axis at a second predetermined distance greater than said first predetermined distance and electrically connected to a plurality of first terminals (9) able to be connected. with said first cards. According to another characteristic, the connection device (6) comprises a main part (7) made of plastic with a plurality of overmolded metal bars connecting the second plugs and the first terminals.
    公开号:FR3018012A1
    申请号:FR1451494
    申请日:2014-02-25
    公开日:2015-08-28
    发明作者:Fabien Guerin；Philippe Baudesson；Patrick Lebrasseur；Amine Bencheikh；Amaury Rouet
    申请人:Valeo Equipements Electriques Moteur SAS；
    IPC主号:
    专利说明:

    [0001] DEVICE FOR CONNECTING A ROTATING ELECTRIC MACHINE AND USE OF SUCH A CONNECTION DEVICE IN AN ELECTRICAL POWER COMPRESSOR TECHNICAL FIELD OF THE INVENTION. The present invention relates to a connection device of a rotating electrical machine for applications in the field of the automobile, in particular for an electric motor of an electric supercharger.
    [0002] The invention also relates to an electric supercharger comprising this connection device. BACKGROUND ART OF THE INVENTION. Ecological considerations, including the fight against global warming by reducing CO2 emissions, have led OEMs to offer automobile manufacturers electric superchargers that improve the dynamic response of low-displacement, low-displacement internal combustion engines. diet. Unlike conventional superchargers driven by the exhaust gas, the electric supercharger, i.e. driven by an electric motor, has instantaneous response time, and improves low engine torque. diet and acceleration. This system considerably reduces the engine capacity of the combustion engines, thus reducing fuel consumption. In the case of a diesel engine, the lag time of a gas supercharger is also responsible for the emission of particles when, in a phase of acceleration at low speed, the injection system tries to provide the requested power by injecting a surplus of fuel. To overcome this drawback, the company VALEO SYSTEMES DE CONTROLE 30 MOTEUR proposes in its international patent application WO 2013/045821 the implementation of an electric supercharger to assist the gas turbocharger at the moment of depression of the pedal accelerator. However, in some embodiments of such a system, it may be difficult to connect the phase inputs of the electric motor to the power supply, since these are most often close to the axis and also sealing constraints between the turbine part and the electrical part, as indicated in the international patent application WO2005 / 024202. As part of the development of its electric supercharger, the inventive entity has faced a problem of this kind for connecting the phase inputs to a power electronic board much larger than the diameter of the electric motor. GENERAL DESCRIPTION OF THE INVENTION The object of the present invention is therefore to provide a solution to this problem. It relates specifically to a device for connecting a rotary electrical machine of the type supplied by means of a plurality of first plugs arranged on a bearing of an axis of this machine at predetermined angular intervals around it. axis, and at a first predetermined distance. This connection device is remarkable in that it comprises a plurality of second plugs also arranged around this axis at a second predetermined distance greater than the first predetermined distance and electrically connected to a plurality of first terminals capable of being connected with the two terminals. first sheets. The connection device advantageously comprises a main part made of plastic material with a plurality of overmolded metal bars connecting the second plugs and the first terminals. Preferably, this connection device further comprises first sealing means adapted to cooperate with the bearing of the electric machine and second sealing means cooperating with a cover. These first sealing means advantageously comprise a first ring cooperating with a first circumferential groove of the main part. The second sealing means are also advantageously constituted by a second ring cooperating with a second circumferential groove of the main piece and a circumferential bearing surface of the cap. Preferably, the second plugs are distributed in pairs around the axis of the rotating electrical machine. The invention also relates to a rotary electrical machine of the type supplied by means of a plurality of first plugs arranged on a bearing of an axis of this machine at predetermined angular intervals around this axis. a first predetermined distance. This rotating electrical machine is notable in that it comprises a connection device having the features described above, a plurality of first terminals of the connection device being welded to the first pins. Preferably, this rotating electrical machine comprises at least one position sensor arranged on the connection device. The rotary electrical machine according to the invention advantageously comprises a power electronic board comprising a plurality of second terminals arranged around the axis at a second predetermined distance greater than the first predetermined distance and electrically connected to the first plugs via of the connection device. The invention is also directed to a motor vehicle supercharger for a supercharging system of a heat engine which is remarkable for being driven by the rotating electrical machine specified above. These few essential specifications will have made obvious to the person skilled in the art the advantages provided by the connection device according to the invention, as well as by the rotating electrical machine and the electric supercharger which use it, with respect to the state of the art. The detailed specifications of the invention are given in the following description in conjunction with the accompanying drawings. It should be noted that these drawings have no other purpose than to illustrate the text of the description and in no way constitute a limitation of the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a top view of an electrical part of an electric supercharger known from the state of the art showing an electronic power card of a type covered by the invention. Figures 2a and 2b are respectively a perspective view of the main part of the connection device according to the invention and a perspective view thereof. Figures 3a and 3b are respectively an exploded view of the connection device according to the invention and a radial half section thereof. Figure 4 is a partial exploded view of a rotary electrical machine according to the invention.
    [0003] Figure 5 is a top view of an electric part of an electric supercharger according to the invention showing the power electronic board. Figure 6 is an exploded view of an electric supercharger according to the invention.
    [0004] DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION In the context of the development of an electric supercharger, the inventive entity had to provide an electrical connection between the phase inputs 1 of the electrical machine 2 and the connection pieces 3 of a power electronic card 4. Now, a stator of a particular embodiment of this machine 2 makes a first diameter of substantially 40 mm and the power electronic card 4 makes a second diameter of substantially 110 mm. As a result, first plugs 1, corresponding to these phase inputs, which are arranged on a bearing of the machine 2 at predetermined angular intervals around the axis, are at a first predetermined distance D1 of the axis equal to at most 20 mm. As shown in FIG. 1, these first plugs 1 then come out in the connection pieces 3 in the middle of the power electronic card 4. The presence of these connection pieces 3 at this point limits the placement possibilities of the electronic components 5 and their routing, leading to an impossibility. Moreover, the electronic components 5 are not protected vis-à-vis the turbine part of the supercharger, because there is no sealing 30 between the turbine part and the electrical part 2. The invention is characterized by a connection device 6 comprising a main piece 7 made of plastic with overmolded metal bars 8 placed between the power electronic card 4 and an electric machine bearing 2 on which this card 4 is mounted. Its function is: the seal between the power electronic card 4 and the bearing; - 5 - - ensure the electrical connections between the electronic card 4 and the phase inputs 1; - Release the routing space of the power card 4 by bringing the connection pieces 3 connecting phases 1 to the periphery of the card 4; guaranteeing a clean assembly process (electronic components protected from the particles generated by the welds of the first plugs 1 on the power electronic card 4); - ensure the positioning and sealing of a position sensor. As shown in Figure 2a, the main part 7 of the connection device 6 according to the invention comprises a plurality of first terminals 9 connected by the metal bars 8 to a plurality of second plugs 10. The first terminals 9 are arranged substantially at the first predetermined distance D1 of the axis XX 'so as to be welded with the first pins 1 of the phase inputs. The second plugs 10, intended to be soldered on the power electronic board 4, are arranged around the axis XX 'at a second predetermined distance D2, greater than the first predetermined distance D1, within the limit of 55 mm corresponding to the second diameter of the power electronic card 4 in this particular embodiment. In this particular embodiment, the main piece 7 has substantially the shape of a hexagon. A circular shape, or the like, may also be chosen in other embodiments of the invention. The second plugs 10, which extend parallel to the axis XX 'of the machine 2 in radial planes, are grouped in pairs and distributed over three supports 11 carried on three sides of the hexagon and extending into the plan of it. Figure 2b shows the connection device 6 according to the complete invention. In order to isolate the power electronic board 4 from the bearing of the electric machine 2, the main part 7 is provided with a cover 12. The exploded view of FIG. 3a and the radial section of FIG. 3b show how the sealing between the main part 7 and the bearing 13 is obtained by means of a first hexagonal crown 14 of rectangular section cooperating with a first circumferential groove 15 of the main part 7, on the one hand, and with a groove 16 of the bearing 13 , on the other hand. In the same way, the seal between the main part 7 and the cover 12 is obtained by means of a second hexagonal crown 17 similar to the first cooperating with a second circumferential groove 18 of the main part 7, of one hand, and with a circumferential bearing surface 19 of the cover 12, on the other hand. The partial exploded view of FIG. 4 shows the arrangement of the connection device 6 according to the invention inside a housing 20 of the electric machine 2. The power electronic board 4, shown in FIG. 5, is also mounted inside the housing 20 on the cover 12 of the connection device 6 as shown in the exploded view of the electric supercharger according to the invention of Figure 7. The housing 20 is closed by a cover 21. The principle of the invention is based on the use of a metal bar 8 allowing a first weld with each phase 1 of the machine 2, then in a second time a second weld to connect with each of the second terminals 22 of each phase 1 of the electronic power card 4. This two-step process allows: - in a first step, the laying in the machine 2 of the main piece 7 overmolded plastic with a first seal 14, 15, 16 on the 20 p riphérie and accessibility of one motor phase to a first weld; - In a second step, the obstruction by the cover 12, or resin, the accessible portion for the first weld to ensure a second level of sealing 17, 18, 19; the remote welding in a zone that can be kept clean from the 25 second plugs 10 of the main part 7 with the second terminals 22 of the power electronic board 4. The second terminals 22 are surface-mounted components (CMS), which occupy a reduced space on the insulated metallized substrate (SMI) of the power electronic board 4. The space released in the center of the board 4 by the electronic components 5, in particular the MOSFET power semiconductors, comprises an interconnector 23. The rotating electrical machine 2 made in this way is coupled to the turbine part 24 to form a compact electric supercharger 25 35 whose integrated power electronic card 4 is easy to mount and protected from polluting particles. As goes without saying, the invention is not limited to the single preferred embodiment described above, in particular the number of phases of the rotating electrical machine 2 indicated is only one example.
    [0005] The generally hexagonal-shaped prismatic shape of the connection device 6 according to the invention is also only an example of a preferred embodiment. In a variant, the main part 7 is circular in shape, the metal bars 8 overmolded in radially extending arms being connected to second plugs 22 extending parallel to the axis XX 'in tangential planes. In another variant, the first and second rings 14, 17 are advantageously replaced by O-rings, the first circumferential groove 15 of the main part 7 and the circumferential bearing surface 19 15 of the cover 12 being eliminated. Embodiments other than that described in detail above would therefore not be outside the scope of the present invention insofar as they result from the claims hereinafter.
    权利要求:
    Claims (9)
    [0001]
    CLAIMS1) Connecting device (6) of a rotary electric machine (2) of the type supplied by a plurality of first plugs (1) arranged on a bearing (13) of an axis (XX) ') of said machine (2) at predetermined angular intervals around said axis (XX') at a first predetermined distance (D1), characterized in that it comprises a plurality of second plugs (10) arranged around said axis (XX) ') at a second predetermined distance (D2) greater than said first predetermined distance (D1) and electrically connected to a plurality of first terminals (9) connectable with said first plugs (1).
    [0002]
    2) Connection device (6) of a rotary electric machine (2) according to the preceding claim 1, characterized in that it comprises a main part (7) made of plastic material with a plurality of metal bars (8) overmolding connecting said second plugs (10) and said first terminals (9).
    [0003]
    3) Connection device (6) of a rotating electrical machine (2) according to the preceding claim 2, characterized in that it further comprises first sealing means (14, 15, 16) adapted to cooperate with said bearing (13) and second sealing means (17, 18, 19) cooperating with a cover (12).
    [0004]
    4) Connection device (6) of a rotary electrical machine (2) according to the preceding claim 3, characterized in that said first sealing means (14, 15, 16) comprise a first ring (14) cooperating with a first circumferential groove (15) of said main part (7) and in that said second sealing means (17, 18, 19) consist of a second ring (17) cooperating with a second circumferential groove (18) said main piece (7) and a circumferential bearing surface (19) of said cover (12).
    [0005]
    5) Connecting device (6) of a rotary electric machine (2) according to claim 4, characterized in that said second plugs (10) are distributed around said axis (XX ').
    [0006]
    6) A rotary electric machine (2) of the type supplied by means of a plurality of first plugs (1) arranged on a bearing (13) of an axis (XX ') of said machine (2) to predetermined angular intervals around said axis (XX ') at a first predetermined distance (D1), characterized in that it comprises a connection device (6) according to any one of the preceding claims 1 to 5, a plurality of first terminals (9) of said connecting device (6) being welded with said first plugs (1).
    [0007]
    7) A rotary electric machine (2) according to claim 6, characterized in that it comprises at least one position sensor arranged on said connection device (6).
    [0008]
    8) rotary electric machine (2) according to any one of claims 6 or 7 above, characterized in that it comprises a power electronic board (4) comprising a plurality of second terminals (22) arranged around said axis ( XX ') at a second predetermined distance (D2) greater than said first predetermined distance (D1) and electrically connected to said first plugs (1) via said connecting device (6). 20
    [0009]
    9) supercharger compressor (25) of a motor vehicle for a supercharging system of a heat engine, characterized in that it is driven by a rotary electric machine (2) according to any one of claims 6 to 8 above .
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP2913909B1|2017-11-08|
    CN104868658A|2015-08-26|
    CN104868658B|2020-08-18|
    US20150244243A1|2015-08-27|
    EP2913909A1|2015-09-02|
    FR3018012B1|2017-10-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2002087057A1|2001-04-20|2002-10-31|Robert Bosch Gmbh|Electronically commutated direct current motor|
    FR2831346A1|2001-10-22|2003-04-25|Zf Sachs Ag|Stator connections for electrical machine, comprises reception elements associated with each termination of the stator winding coils and able to receive terminals from concentric conductor rings|
    US20040070293A1|2002-08-29|2004-04-15|Honda Giken Kogyo Kabushiki Kaisha|Lead frame and distributing part using same|
    EP1677404A2|2004-12-28|2006-07-05|Hitachi, Ltd.|Motor for electric power steering and method for manufacturing the same|
    US20090021091A1|2007-07-18|2009-01-22|Hitachi, Ltd.|Motor drive apparatus and its inspection method|
    EP2043234A1|2007-09-26|2009-04-01|ebm-papst Mulfingen GmbH & Co.KG|Electric motor|
    DE102008000124A1|2008-01-22|2009-07-30|Visteon Global Technologies, Inc., Van Buren Township|Compressor, particularly electric motor propelled compressor, has electric motor which has stator and rotor, where stator is provided with stator connection plate|
    EP2244358A1|2008-03-13|2010-10-27|Nidec Corporation|Motor|
    EP2214293A1|2009-01-29|2010-08-04|ebm-papst Mulfingen GmbH & Co. KG|Stator unit with moisture seal|
    EP2352220A2|2010-01-29|2011-08-03|Sanyo Electric Co., Ltd.|Electric motor and mobile object|
    EP2549627A1|2010-03-19|2013-01-23|Mitsubishi Electric Corporation|Electric drive device and electric power steering device having same mounted therein|
    GB0104915D0|2001-02-28|2001-04-18|Johnson Electric Sa|A planar carbon segment comutator|
    DE10213743A1|2002-03-26|2003-10-09|Ebm Werke Gmbh & Co Kg|Stator for electric motors with winding connection arrangement|
    EP1664503B1|2003-09-05|2006-06-14|Honeywell International, Inc.|Electronic power connection for electrically assisted turbocharger|
    DE102004037899A1|2004-08-05|2006-03-16|Robert Bosch Gmbh|electric machine|
    DE602006020239D1|2006-01-24|2011-04-07|Ihi Corp|Motor powered charging|
    KR101117553B1|2009-08-17|2012-03-07|주식회사 아모텍|Waterproof Water Pump Motor and Water Pump Using the Same|
    FR2980526B1|2011-09-27|2015-01-30|Valeo Sys Controle Moteur Sas|TURBO-PRESSURIZED MOTOR EQUIPPED WITH MEANS FOR REDUCING TURBOCHARGER ACTIVATION TIME|FR3040744B1|2015-09-09|2017-09-01|Valeo Systemes De Controle Moteur|COMPRESSOR OF ELECTRICAL POWER SUPPLY|
    FR3044839A1|2015-12-02|2017-06-09|Valeo Systemes De Controle Moteur|ELECTRICAL CONNECTOR FOR CONNECTING AN ELECTRICAL DEVICE WITH AN ELECTRICAL MACHINE CONTROLLED THEREBY|
    FR3044838A1|2015-12-02|2017-06-09|Valeo Systemes De Controle Moteur|ELECTRICAL CONNECTOR FOR CONNECTING ELECTRICALLY TO AN ELECTRIC POWER SOURCE|
    FR3049315B1|2016-03-23|2018-04-13|Valeo Systemes De Controle Moteur|ELECTRICAL POWER COMPRESSOR COMPRISING AN ELECTRICAL CONNECTION DEVICE|
    FR3050864A1|2016-04-28|2017-11-03|Valeo Systemes De Controle Moteur|ELECTRONIC POWER MODULE, ELECTRICAL ASSEMBLY AND ELECTRICAL POWER COMPRESSOR COMPRISING SUCH AN ELECTRONIC POWER MODULE|
    FR3050863B1|2016-04-28|2018-10-12|Valeo Systemes De Controle Moteur|ELECTRONIC POWER MODULE, ELECTRICAL ASSEMBLY AND ELECTRICAL POWER COMPRESSOR COMPRISING SUCH AN ELECTRONIC POWER MODULE|
    FR3050879A1|2016-04-28|2017-11-03|Valeo Systemes De Controle Moteur|ELECTRICAL CONNECTION BAR FOR POWER SUPPLYING AN ELECTRIC MOTOR|
    FR3054389B1|2016-07-21|2020-09-04|Valeo Systemes De Controle Moteur|SENSOR HOLDER PART AND DETECTION DEVICE INCLUDING SUCH A SENSOR HOLDER PART|
    JP2018125951A|2017-01-31|2018-08-09|日本電産株式会社|Motor and air blowing device with the same|
    DE102017207165A1|2017-04-28|2018-12-13|Robert Bosch Gmbh|Electric drive unit with a housing|
    法律状态:
    2016-02-29| PLFP| Fee payment|Year of fee payment: 3 |
    2017-02-28| PLFP| Fee payment|Year of fee payment: 4 |
    2018-02-26| PLFP| Fee payment|Year of fee payment: 5 |
    2020-02-28| PLFP| Fee payment|Year of fee payment: 7 |
    2021-02-26| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1451494A|FR3018012B1|2014-02-25|2014-02-25|DEVICE FOR CONNECTING A ROTATING ELECTRIC MACHINE AND USE OF SUCH A CONNECTION DEVICE IN AN ELECTRICAL POWER SUPPLY COMPRESSOR|FR1451494A| FR3018012B1|2014-02-25|2014-02-25|DEVICE FOR CONNECTING A ROTATING ELECTRIC MACHINE AND USE OF SUCH A CONNECTION DEVICE IN AN ELECTRICAL POWER SUPPLY COMPRESSOR|
    EP15156082.8A| EP2913909B1|2014-02-25|2015-02-23|Connection device for a rotary electric machine and use of such a connection device in an electric supercharger|
    CN201510249050.8A| CN104868658B|2014-02-25|2015-02-25|Connecting device for a rotating electrical machine and use of such a connecting device in an electric supercharger|
    US14/631,636| US20150244243A1|2014-02-25|2015-02-25|Connection device for a rotary electric machine and use of such a connection device in an electric supercharger|
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