• 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:
    An integrated control rotary electric machine with increased resistance to electrolytic corrosion, comprising: an energy circuit unit (20) provided between an external power supply and a stator winding of a rotating machine main body (102); an energy input / output terminal bolt (11) provided in this unit (20) and electrically connected to the external power supply; a plate pressed into this bolt (11) and abutting against an energy input / output conductor; a bus bar (30) connected to the power input / output conductor; and an energy module (21) connected to the bus bar (30) and the stator winding, the bolt (11) and the bus bar (30) being separated from each other.
    公开号:FR3017501A1
    申请号:FR1456399
    申请日:2014-07-03
    公开日:2015-08-14
    发明作者:Toshiaki Kashihara；Yoshinobu Utsumi
    申请人:Mitsubishi Electric Corp；
    IPC主号:
    专利说明:

    [0001] BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a rotary electric machine with integrated control member, wherein a rotary electric machine and a control member for controlling the rotary electric machine are provided. configured in an integrated way. Description of the Related Art A rotary electric machine with a built-in control member mounted on a vehicle, such as a car, comprises an energy conversion circuit for performing energy conversion between an armature winding of the rotary electric machine. and a battery provided outside the rotary electric machine. The energy conversion circuit generally comprises a plurality of power modules containing a semiconductor-based switching device and operates as an inverter or converter under the control of a grid signal applied to the gate of these switching devices. When the rotary electric machine is operated as a motor, the energy conversion circuit is made to function as an inverter which converts the DC power of the battery into AC power to be supplied to the battery. armature winding of the rotary electric machine. On the other hand, when the rotary electric machine is operated as a generator, the energy conversion circuit is made to function as a converter which converts an induced AC energy into the armature winding of the machine. Rotary electrical in DC power to provide the battery. In a rotary electric machine with an integrated controller configured as described above, between a power input / output terminal of the armature winding of the rotary electric machine and an input terminal / energy output which is an AC side terminal of an energy module included in the energy conversion circuit, and an energy input / output terminal which is a current side terminal continuous of the energy module, a bus bar comprises an electrical coupling and at least one mechanical coupling other than the electrical coupling, and the bus bar is electrically coupled to a terminal by the electrical coupling and is mechanically coupled to a heat sink or a support by the at least one mechanical coupling with an insulator between them (see for example the patent document 1: WO 2012/081068). Nevertheless, the conventional built-in rotary electric control machine as described in patent document 1 suffers from the following problem: since an energy input / output terminal bolt is directly pressed into the bus bar, when sea water or the like enters from the outside into the head of the energy input / output terminal bolt, the area surrounding the busbar clamp adjustment deteriorates by electrolytic corrosion and, ultimately, a crack occurs in the area surrounding the clamping of the bus bar under the effect of the vibration of the motor and the correct energy is then no longer supplied to the module. energy. In addition, another problem is that the busbar needs a clamping adjustment length which provides a mechanical seam area and which, given the aforementioned problem, needs an unnecessarily large thickness of the bus bar. regardless of the generation of heat by electricity, resulting in magnification.
    [0002] SUMMARY OF THE INVENTION In order to solve the above-mentioned problem encountered in conventional rotary electrical machines, an object of the present invention provides a built-in rotary electric machine in which the resistance to electrolytic corrosion is generally improved in the surface. electrical coupling between the power input / output terminal bolt and the bus bar, and the energy input / output terminal bolt and the bus bar are decreased in size. An integrated control rotary electric machine according to the invention comprises: an energy input / output terminal bolt connected to a power circuit unit provided between an external power supply and a stator winding a main body of rotary electric machine; a plate pressed into the energy input / output terminal bolt and abutting against an energy input / output conductor; a bus bar connected to the power input / output conductor; and an energy module connected to the bus bar and the stator winding, wherein the energy input / output terminal bolt and the bus bar are separated from each other. Advantageously, the energy input / output terminal bolt 10 passes through a through hole provided in the power input / output lead, and the energy input / output terminal bolt is electrically connected to the input / output power supply bolt. power input / output driver. Advantageously, the energy input / output terminal bolt is connected to the bus bar via the power input / output conductor. Advantageously, the plate consists of a metal having a tendency to ionization greater than that of the bus bar. Advantageously, the plate consists of a metal which is one of the following metals: aluminum, iron or zinc. Advantageously, the rotary electrical machine with integrated control member further comprises: a heat sink on which the energy modules are mounted for cooling the energy modules; and a housing coupling of the energy circuit unit attached to the heat sink, wherein the plate is buried in the housing coupling, and wherein the energy input / output conductor is formed with the upper surface of the exposed housing coupling. According to the integrated rotary electric machine of the invention, the electrolytic corrosion resistance can be improved in the electrical coupling surface between the energy input / output terminal bolt and the bus bar, and the energy input / output terminal bolt and the bus bar can be decreased in size. BRIEF DESCRIPTION OF THE DRAWINGS The above-mentioned objects, features, aspects and advantages of the present invention as well as other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention. reference to the accompanying drawings, in which: FIG. 1 is a vertical cross-sectional view of an integrated control unit electric generator according to a first embodiment of the invention; Fig. 2 is a side sectional side view of the rear side showing the configuration of a power circuit unit of the integrated controller power generator according to the first embodiment of the invention; Fig. 3 is a circuit diagram of the rotary electric machine with integrated controller according to the first embodiment of the invention; and Fig. 4 is a vertical cross-sectional view showing the main portion of the power circuit unit of the integrated control rotary electric machine according to the first embodiment of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment FIG. 1 is a vertical cross-sectional view of a rotary electric machine with integrated controller according to a first embodiment of the invention. In FIG. 1, a rotary electric machine with an integrated control member for a vehicle 100 comprises: a stator core 3 supported by a front support 1 and a rear support 2; and a rotor core 4 inserted into the interior space of the stator core 3. The rotor core 4 comprises a plurality of rotor poles facing the inner circumferential surface of the stator core 3 with an air gap therebetween. A stator winding 300, which is an armature winding in which a coil part is inserted into a slot of the stator core 3, is fixed to the stator core 3. In the first embodiment, the winding of the stator winding 300 is stator 300 is connected to six phases. A rotor winding 7, which is an inductor winding, is attached to the rotor core 4. The stator core 3 and the stator winding 300 form a stator 5 of a rotating electrical machine main body 102. The core 4 and the rotor winding 7 form a rotor 13 of the main body of the rotary electric machine 102. The front support 1 and the rear support 2 are clamped in the direction bringing them closer to each other by a plurality of bolts 101 to take the stator core 3 tightly sandwiched. A rotor shaft 6 passing through the center of the rotor core 4 is rotatably supported by a front bearing 61 supported by the front support 1 and a rear bearing 62 supported by the rear support 2. A cooling fan before 51 and a rear cooling fan 52 which are attached to the front end face and to the rear end face of the rotor core 4 rotate in relation to the rotor core 4 to bring air to s flow from the outside to the inside respectively of the front support 1 and the rear support 2 to cool the inside of the main body of the rotary electric machine 102. A pulley 12 is attached to the front end of the rotary shaft. rotor 6. A transmission belt (not shown) which operates with the rotary shaft of an engine is wound around the pulley 12. A pair of slip rings 8 attached to the circumferential face of the rotor shaft 6 is in slidably contacting with a pair of brushes 9 supported by a brush holder 90. A pole position detecting sensor 10 configured by a resolver-sync comprises: a sensor rotor 111 attached to the end rear of the rotor shaft 6; a sensor stator 112 attached to the rear support 2 facing the sensor rotor 111; and a sensor winding 113 attached to the sensor stator 112. A control circuit board 40 comprising a control circuit is contained in a card housing housing 41 made of a resin. The control circuit provided on the control circuit board 40 controls the switching operation of an energy module 21, as will be described hereinafter. The card housing 41 is attached to the outer surface of a heat sink 23. A power circuit unit 20 is attached to the outside of the rear bracket 2 and includes a power conversion circuit for performing energy conversion between the stator winding 300, which is the armature winding, and a battery (not shown). The energy conversion circuit comprises six energy modules 21, described below, and operates as a six-phase inverter or a six-phase converter. Figure 3 is a circuit diagram of the rotary electric machine with integrated control member according to the first embodiment of the invention. As shown in FIG. 3, in the first embodiment, each energy module 21 comprises two semiconductor switching devices which are connected in series and two diodes which are each connected antiparallel to each semi-switching device. -conducteurs 30 corresponding, all of them being embedded in a resin and configured in a set. The two semiconductor switching devices integrated in the energy module 21 are connected in series as described above. One of the two semiconductor switching devices and the diode antiparallelly connected thereto include the positive electrode arm for one phase of the six-phase bridge circuit. The other of the two semiconductor switching devices and the diode connected anti-parallel thereto include the negative electrode arm for this phase. Then, the series connection point between the two semiconductor switching devices is connected to a stator winding at one phase 300 of the six-phase stator winding.
    [0003] Accordingly, the six energy modules 21 configured as described above are connected to corresponding terminals 22a connected to a terminal B 24, as will be described hereinafter. Fig. 2 is a partial sectional side view of the rear side showing the configuration of the power circuit unit of the integrated controller electrical generator according to the first embodiment of the invention. In Fig. 2, the energy circuit unit 20 comprises: the six energy modules 21 including the six-phase energy conversion circuit for controlling the energization of the stator windings 300; the heat sink 23 on which the energy modules 21 are mounted with an insulating layer (not shown) between them; an energy input / output terminal bolt 11 electrically connected to the positive electrode of the battery; the terminal B 24 and a busbar B 30 electrically connected to the energy input / output terminal bolt 11; and an energy circuit package 25.
    [0004] As shown in Figure 1, the heat sink 23 is formed of a metallic material, such as die-cast aluminum, and includes a through hole 231 in the center. On the front surface of the heat sink 23, a number of cooling fins 23a extending axially towards the stator side of the rotary electric machine main body 102 are integrally formed. The through hole 231 of the heat sink 23 is traversed by the rotor shaft 6.
    [0005] As shown in FIG. 2, the energy circuit package 25 is formed of a resin and comprises an annular outer housing 251 and an annular inner housing 252. The inner housing 252 has an inner wall 255 formed to surround its 254. The inner wall 255 comprises an inner wall of the energy circuit package 25. The energy circuit package 25 is attached to the rear surface of the heat sink 23. Therefore, a heat sink 25 is formed. energy module 257 surrounded by the outer casing 251 and the inner casing 252 of the energy circuit box 25 and the rear surface of the heat sink 23.
    [0006] As shown in FIG. 2, the six energy modules 21, contained in the energy module container 257 and arranged in a U-shape, are spaced from one another. Control circuit board couplings 260 connected to the control circuit board 40 are inserted into the energy module container 257. The control circuit board couplings 260 are intended to provide a gate signal from from the control member formed on the control circuit board 40 to the gate of the semiconductor switching device of the energy modules 21. The energy module container 257, which contains the power modules 21 and the control circuit board couplings 260, is filled with an energy circuit water-sealing resin 28. Therefore, the power modules 21 and the circuit board couplings of FIG. 260 are embedded in the energy circuit water sealing resin 28 and are protected from the water by the energy circuit water sealing resin 28. Terminal B 24, as a terminal electrically connected to the positive electrode of the b External terminal, is molded into the inner housing 252 and a housing coupling 253 into the energy circuit package 25. The terminal B 24 is electrically and mechanically connected to the terminals 22a and 260a of the circuit card couplings. control 260 of the six energy modules 21 by welding or brazing. Note that the B terminal 24 is exposed on the upper surface of the housing coupling 253 of the energy circuit box 25.
    [0007] The busbar 30 electrically connected to the positive electrode of the external battery (to which reference is made below as bus bar B) is attached to the heat sink 23 with screws 31, 32 on both sides of the bus. energy input / output terminal bolt 11. It will be noted that the cross-sections shown are different between FIG. 1 and FIG. 4. In FIG. 4, the busbar B 30 is provided on the rear side of the drawing. Terminal B 24 is placed between energy modules 21 and heat sink 23. Terminal B 24 is formed of a metallic material, such as copper. As shown in FIG. 4, a formed female screw is threadingly engaged with a screw 31 inserted from the rear surface of the heat sink 23 through an insulator 33 to be attached to the heat sink 23 with the housing coupling 253 between them. The B terminal 24 provided on the housing coupling 253 of the energy circuit box 25 is electrically connected to the energy input / output terminal bolt 11 with a spacer 42 between them by the clamping force of a Nut 36. Specifically, as shown in FIG. 4, the energy input / output terminal bolt 11 passes through the through hole provided in terminal B 24 with the head abutting against an bolt. Then, the energy input / output terminal bolt 11 is threadedly engaged with the nut 36, is attached to the terminal B 24 with the spacer 42 between them and is pressed into a buried plate 43. in the case coupling 253. In the integrated control rotary electric machine 100 according to the first embodiment of the invention configured as described above, the energy input / output terminal bolt 11 is electrically connected to the positive electrode of the battery supplied to the outside of the rotary electrical machine with integrated control member 100 via a bundle of battery cables or the like (not shown) . In addition, the pulley 12 is coupled, via a belt, to an internal combustion engine side pulley (not shown) provided on the output shaft of an internal combustion engine. When the rotary electric machine with integral control member 100 is made to function as a motor, switching of the semiconductor switching devices of the energy modules 21 is controlled by a gate signal from the controller provided on the control circuit board 40 so as to cause the energy conversion circuit, including the energy modules 21, to function as an invertor.
    [0008] With this command, the DC power input to the terminals 22a of the energy modules 21 from the battery through the energy input / output terminal bolt 11, the terminal B 24 and the bus bar B 30, is converted, by the inverter comprising the power modules 21, into a six-phase alternating-current energy to be supplied to the individual phase windings of the six-phase stator winding 300 across the terminals. 22b of the energy modules 21. Therefore, an interaction between a rotating magnetic field generated by the stator winding 300 and a magnetic field generated by the rotor winding (inductor winding) 7 provided on the rotor 13 causes the rotor 13 for transmitting energy from the pulley 12 to the internal combustion engine via the belt. On the other hand, when the rotary electric machine with integrated control member 100 is operated as a generator, with the rotor 13 driven by energy transmitted from the internal combustion engine to the pulley 12 via the belt, the switching of the semiconductor switching devices of the energy modules 21 is controlled by a gate signal from the controller provided on the control circuit board 40 so as to bring the circuit energy conversion comprising the energy modules 21 to function as a converter. Therefore, the AC energy induced in the individual phase windings of the stator winding 300 is applied to the energy modules 21 via the terminals 22b of the energy modules 21 and is converted into energy. direct current converter by the converter comprising the energy modules 21 to be supplied from the terminals 22a of the energy modules 21 to the battery via the busbar B 30, the terminal 24, the spacer 42 and the nut 36.
    [0009] Since the integrated control rotary electric machine 100 according to the first embodiment of the invention is configured as described above, even when salt water enters through the head of the input terminal bolt / energy output 11 to dissolve the plate 43 by electrolytic corrosion, the bus bar 30 has a structure that is not likely to be dissolved, which allows to supply power to the energy modules 21. The plate 43 is formed of a metallic material, such as aluminum. When the plate (AL) is formed of a material with a tendency to ionization greater than that of the bus bar (Cu) and the metal, having the tendency to higher ionization, such as aluminum, is put in contact with the copper member, the aluminum can corrode sacrificially to prevent corrosion of the copper bus bar. Aluminum corrodes first to emit electrons, thereby supplying electrons to copper, which blocks the emission of electrons from the copper and provides an anticorrosive effect. In addition to aluminum, iron and zinc, which are metals with a higher ionization tendency than copper, can be used for the plate.
    [0010] It is noted that, according to the invention, the embodiments may be modified or omitted as appropriate within the scope of the invention. Those skilled in the art may appreciate that there are various modifications and alterations of the present invention within the scope and spirit of the present invention. It should be understood that the present invention is not limited to the illustrative embodiments described herein.
    权利要求:
    Claims (6)
    [0001]
    REVENDICATIONS1. A rotary electric machine with an integrated control member, characterized in that it comprises: an energy circuit unit (20) provided between an external power supply and a stator winding (300) of a main body of rotary electric machine (102); An energy input / output terminal bolt (11) provided in the power circuit unit (20) and electrically connected to the external power supply; a plate (43) pressed into the energy input / output terminal bolt (11) and abutting against an energy input / output lead (24); a bus bar (30) connected to the power input / output conductor (24); and an energy module (21) connected to the bus bar (30) and the stator winding (300), wherein the energy input / output terminal bolt (11) and the bus bar (30) are separated from each other.
    [0002]
    An integrated control rotary electric machine according to claim 1, wherein the energy input / output terminal bolt (11) passes through a through hole provided in the input / output conductor of the power input / output terminal bolt (11). energy (24), and the energy input / output terminal bolt (11) is electrically connected to the power input / output lead (24).
    [0003]
    An integrated rotary electric machine according to claim 1, wherein the energy input / output terminal bolt (11) is connected to the bus bar (30) via the driver of the power bus. energy input / output (24).
    [0004]
    4. An integral rotary electric machine according to claim 1, wherein the plate (43) is made of a metal having a tendency to ionization greater than that of the bus bar (30). 15
    [0005]
    An integrated rotary electric machine according to claim 4, wherein the plate (43) is made of a metal which is one of the following metals: aluminum, iron or zinc. 20
    [0006]
    An integrated rotary electric machine according to claim 1, which further comprises: a heat sink (23) on which the energy modules (21) are mounted for cooling the energy modules (21) ; and a housing coupling (253) of the energy circuit unit (20) attached to the heat sink (23), wherein the plate (43) is buried in the housing coupling (253), andin which the energy input / output lead (24) is formed with the upper surface of the housing coupling (253) exposed.
    类似技术:
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    同族专利:
    公开号 | 公开日
    JP2015149844A|2015-08-20|
    FR3017501B1|2018-01-26|
    US9899898B2|2018-02-20|
    US20150229172A1|2015-08-13|
    JP5950950B2|2016-07-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1180845A2|2000-08-09|2002-02-20|Denso Corporation|Vehicle rotary electric machine|
    WO2012081068A1|2010-12-13|2012-06-21|三菱電機株式会社|Control-apparatus integrated type rotating electrical machine|
    JP4549924B2|2005-05-20|2010-09-22|三菱電機株式会社|Rotating electric machine for vehicles|
    US7905755B1|2009-09-18|2011-03-15|Delphi Technologies, Inc.|Electrical terminal connection with sealed core crimp|ITBO20120682A1|2012-12-18|2014-06-19|Spal Automotive Srl|ELECTRIC MACHINE|
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    JP6610944B2|2015-12-18|2019-11-27|株式会社デンソー|Controller-integrated rotating electrical machine|
    KR200493636Y1|2017-02-13|2021-05-06|밀워키 일렉트릭 툴 코포레이션|Brushless DC motor for power tools|
    JP2019187159A|2018-04-13|2019-10-24|日本電産トーソク株式会社|Electric actuator|
    CN210806998U|2018-06-15|2020-06-19|三菱电机株式会社|Motor and air conditioner|
    CN111835105A|2019-04-18|2020-10-27|佛山市威灵洗涤电机制造有限公司|Stator module and motor|
    法律状态:
    2016-07-29| PLFP| Fee payment|Year of fee payment: 3 |
    2016-11-18| PLSC| Publication of the preliminary search report|Effective date: 20161118 |
    2017-07-31| PLFP| Fee payment|Year of fee payment: 4 |
    2018-07-27| PLFP| Fee payment|Year of fee payment: 5 |
    2020-06-12| PLFP| Fee payment|Year of fee payment: 7 |
    2021-06-11| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014021865|2014-02-07|
    JP2014021865A|JP5950950B2|2014-02-07|2014-02-07|Controller-integrated rotating electrical machine|
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