WO2012081068A1 - 制御装置一体型回転電機 - Google Patents
制御装置一体型回転電機 Download PDFInfo
- Publication number
- WO2012081068A1 WO2012081068A1 PCT/JP2010/072351 JP2010072351W WO2012081068A1 WO 2012081068 A1 WO2012081068 A1 WO 2012081068A1 JP 2010072351 W JP2010072351 W JP 2010072351W WO 2012081068 A1 WO2012081068 A1 WO 2012081068A1
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- WIPO (PCT)
- Prior art keywords
- power
- bus bar
- heat sink
- terminal
- controller
- Prior art date
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
- H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
- H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
- H02K11/05—Rectifiers associated with casings, enclosures or brackets
Definitions
- the present invention relates to a controller-integrated rotating electrical machine in which a rotating electrical machine and a control device that controls the rotating electrical machine are integrally formed.
- a controller-integrated rotating electrical machine mounted on a vehicle such as an automobile includes a power conversion circuit that performs power conversion between an armature winding of the rotating electrical machine and a battery provided outside the rotating electrical machine.
- This power conversion circuit usually includes a plurality of power modules incorporating switching elements made of semiconductor, and operates as an inverter or a converter by controlling a gate signal applied to the gates of these switching elements.
- the power conversion circuit When the rotating electrical machine is operated as an electric motor, the power conversion circuit is operated as an inverter, and the DC power of the battery is converted into AC power by the inverter and supplied to the armature winding of the rotating electrical machine.
- the power conversion circuit is operated as a converter, and AC power induced in the armature winding of the rotating electrical machine is converted into DC power by the converter and supplied to the battery.
- the power input / output terminal is fixed at one place, and therefore the power input / output terminal is cantilevered to distribute the power input / output terminal and power.
- the strength of parts including the terminal is weak, and there is a problem that the power input / output terminal and the terminal for distributing the power are broken by the vibration of the power input / output terminal and the harness attached to the power input / output terminal. It was.
- the present invention has been made to solve the above-mentioned problems in conventional rotating electrical machines, and reduces the difference in potential applied to each power module constituting the power conversion device, thereby reducing the variation in energization current.
- an object of the present invention is to obtain a controller-integrated rotating electrical machine in which the strength of power input / output terminals, terminals, and the like is improved.
- a controller-integrated rotating electrical machine includes a stator including a stator winding that generates AC power or is supplied with AC power, and a rotor magnetic pole that is magnetically coupled to the stator winding.
- a plurality of power modules that constitute a power conversion circuit that performs power conversion between, a heat sink that mounts the plurality of power modules and cools the power modules, and a bus bar that is electrically connected to the DC power source,
- a power input / output conductor fixed to the bus bar and electrically connected to the DC power source and the bus bar, and fixed to the heat sink, the bus bar and a plurality of powers A case made of an insulator having a terminal electrically connected to the joule, wherein the bus bar has one electrical connection portion and at least one mechanical connection portion other than the electrical connection portion.
- the controller-integrated rotating electrical machine includes a stator having a stator winding that generates AC power or is supplied with AC power, and a rotor magnetic pole that is magnetically coupled to the stator winding.
- a rotor that is fixed to the stator and rotatably supports the rotor, and is connected between the stator winding and an external DC power source, and the DC power and the AC
- a plurality of power modules constituting a power conversion circuit that performs power conversion between the power, a heat sink that mounts the plurality of power modules and cools the power module, the DC power source, and the terminal
- a bus bar connected to the power source, a power input / output conductor fixed to the bus bar and electrically connected to the DC power source and the bus bar, and fixed to the heat sink.
- the bus bar includes one electrical connection portion and at least one mechanical connection portion other than the electrical connection portion, and the one electrical location Since it is configured to be electrically connected to the terminal by a connecting portion and mechanically connected to the heat sink via an insulator by the at least one mechanical connecting portion, it takes a plurality of power modules. There is no difference in potential, and the error of the energization current can be reduced. Also, since the bus bar is mechanically connected to the heat sink by a mechanical connection other than the electrical connection, the load applied to the electrical connection can be reduced and the reliability of the electrical connection can be improved. it can.
- the bus bar includes one electrical connection portion and at least one mechanical connection portion other than the electrical connection portion, A plurality of power modules are configured to be electrically connected to the terminal by an electrical connection, and mechanically connected to the bracket via an insulator by the at least one mechanical connection. There is no difference in the potential applied to each other, and the error of the energization current can be reduced.
- the bus bar is mechanically connected to the bracket by a mechanical connection other than the electrical connection, the load applied to the electrical connection can be reduced and the reliability of the electrical connection can be improved.
- the bus bar, the case, and the heat sink can be more firmly fixed to the bracket.
- FIG. 1 is a longitudinal sectional view of a control device-integrated dynamoelectric machine according to Embodiment 1 of the present invention.
- FIG. 1 is a rear side partially broken side view showing a configuration of a power circuit portion of a controller-integrated dynamoelectric machine according to Embodiment 1 of the present invention;
- BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a rear side view showing a configuration of a power circuit section and a B bus bar of a controller-integrated dynamoelectric machine according to Embodiment 1 of the present invention.
- FIG. 1 is a longitudinal sectional view of a control apparatus-integrated dynamoelectric machine according to Embodiment 1 of the present invention.
- a controller-integrated rotating electrical machine 100 for a vehicle includes a stator core 3 supported by a front bracket 1 and a rear bracket 2, and a rotor inserted into an inner space of the stator core 3.
- An iron core 4 is provided.
- the rotor core 4 includes a plurality of rotor magnetic poles that are opposed to the inner peripheral surface of the stator core 3 via a gap.
- a stator winding 301 as an armature winding in which a coil piece is inserted into a slot of the stator core 3 is fixed to the stator core 3.
- the stator winding 30 is 6-phase Y-connected.
- a rotor winding 7 as a field winding is fixed to the rotor core 4.
- the stator core 3 and the stator winding 301 constitute a stator of a rotating electrical machine, and the rotor core 4 and the rotor winding 7 constitute a rotor of the rotating electrical machine.
- the front bracket 1 and the rear bracket 2 are tightened in a direction approaching each other by a plurality of bolts 101, and firmly hold the stator core 3.
- the rotor shaft 6 penetrating the central portion of the rotor core 4 is composed of a front side bearing 61 supported by the front bracket 1 and a rear side bearing 62 supported by the central axial direction extension portion 221 of the rear side bracket 2. , Is supported rotatably.
- the front-side cooling fan 51 and the rear-side cooling fan 52 fixed to the front-side end surface and the rear-side end surface of the rotor core 4 rotate together with the rotor core 4 so as to move from the outside to the inside of the front bracket 1 and the rear bracket 2. Air is introduced to cool the inside of the rotating electrical machine.
- the pulley 12 fixed to the front side end of the rotor shaft 6 is connected to a pulley fixed to an output shaft of an internal combustion engine (not shown) via a belt.
- a pair of slip rings 8 fixed to the peripheral surface of the rotor shaft 6 is in sliding contact with a pair of brushes 9 supported by a brush holder 90 fixed to the inside of the rear bracket 2.
- a magnetic pole position detection sensor 10 constituted by a sync resolver includes a sensor rotor 111 fixed to the rear side end of the rotor shaft 6 and a sensor fixed to the rear side bracket 2 so as to face the sensor rotor 111.
- a stator 112 and a sensor winding 113 fixed to the sensor stator 112 are provided.
- the control circuit board 40 provided with the control circuit is housed in a resin board housing case 41.
- the control circuit provided on the control circuit board 40 controls the switching operation of the power module 21 described later.
- the substrate storage case 41 is fixed to the outer surface portion of the rear bracket 2.
- the power circuit unit 20 is fixed inside the rear bracket 2 and includes a power conversion circuit that performs power conversion between a stator winding 301 that is an armature winding and a battery (not shown).
- This power conversion circuit is composed of six power modules 21 described later, and operates as a six-phase inverter or a six-phase converter.
- each power module 21 includes two semiconductor switching elements connected in series and two diodes connected in reverse parallel to the respective semiconductor switching elements. Configured as a package. The two semiconductor switching elements sealed in one power module 21 are connected in series as described above, and one semiconductor switching element and a diode connected in reverse parallel to this are included in the six-phase bridge circuit. A positive-phase arm for one phase is configured, and the other semiconductor switching element and a diode connected in reverse parallel thereto constitute the negative-phase arm for the one phase. The series connection point of the two semiconductor switching elements is connected to one-phase stator winding of the six-phase stator winding.
- the six power modules 21 configured as described above are connected to a terminal 22a connected to a B terminal 24 described later, a terminal 22b connected to a ground terminal 26a1 described later, and a winding connection terminal 26b described later. It has a terminal 22c to be connected.
- FIG. 2 is a partially broken side view of the rear side showing the configuration of the power circuit portion of the controller-integrated rotating electrical machine according to the first embodiment of the present invention
- FIG. FIG. 4 is a side view of the rear side showing the configuration of the power circuit portion of the body-type rotating electrical machine and the B bus bar
- FIG. 4 shows the main portions of the power circuit portion of the controller-integrated rotating electrical machine and the B bus bar according to Embodiment 1 of the present invention
- FIG. 5 is a longitudinal sectional view and FIG. 5 is a side view of the front side of the power circuit portion and B bus bar of the controller-integrated dynamoelectric machine according to Embodiment 1 of the present invention.
- the power circuit unit 20 includes six power modules 21 that configure a six-phase power conversion circuit and control the energization of the stator winding 301, and these power modules 21 include insulating layers (see FIG. 1 to FIG. 5). (Not shown), an annular heat sink 23, a B terminal 24 as a first terminal electrically connected to the positive electrode side of the battery provided outside, and a second terminal connected to the ground potential.
- a power input / output bolt 11 as a power input / output conductor to be connected, and a bus bar for connecting the power input / output bolt and the B terminal 24. Comprising the B bus bar 30, and a power circuit case 25.
- the annular heat sink 23 is formed of a metal material such as aluminum die-cast, and has a through hole 231 at the center as well shown in FIG. A large number of cooling fins 23 a extending in the axial direction are integrally formed on the front surface of the heat sink 23 on the stator side of the rotating electrical machine.
- the through hole 231 of the heat sink 23 is penetrated by the central axis extending portion 221 of the rear bracket 2 and the rotor shaft 6.
- the power circuit case 25 is made of resin, and as shown in FIG. 3, the annular outer case portion 251, the annular inner case portion 252, the outer case portion 251 and the inner case portion 252 are combined. And a case connecting portion 253 connected at the portion.
- the outer case portion 251 is formed with an outer wall 255 that surrounds the through hole 254.
- the outer wall 255 constitutes the outer wall of the power circuit case 25.
- the inner case portion 253 is formed to have the same axial length as the axial length of the outer wall 255 described above, and includes a through hole 256 having the same shape as the through hole 231 of the heat sink 23.
- the inner case part 252 constitutes the inner wall of the power circuit case 25.
- the power circuit case 25 is fixed to the rear side surface of the heat sink 23 described above. As a result, a power module housing portion 257 surrounded by the outer case portion 251 and the inner case portion 252 of the power circuit case 25 and the rear side surface of the heat sink 23 is formed.
- the six power modules 21 described above are housed in the power module housing section 257 and are arranged radially with a space therebetween as well shown in FIG.
- a control circuit board connection part 260 connected to the control circuit board 40 is inserted in the power module housing part 257.
- the control circuit board connecting portion 260 is for supplying a gate signal from a control circuit formed on the control circuit board 40 to the gate of the semiconductor switching element of each power module 21.
- the power circuit waterproofing resin 28 is filled in the power module housing portion 257 in which the power module 21 and the connection portion 260 are housed. As a result, the power module 21 and the connection portion 260 are embedded in the power circuit waterproof resin 28 and are protected by the power circuit waterproof resin 28.
- the B terminal 24 as the first terminal electrically connected to the positive electrode of the external battery is molded in the inner case portion 252 and the case connecting portion 253 of the power circuit case 25, and is well illustrated in FIG. As shown in the figure, it is exposed at seven locations on the outer wall surface of the inner case portion 252. These exposed B terminals 24 are electrically and mechanically connected to the terminals 22a of the six power modules 21 and the terminals 260a of the control circuit board connection 260, respectively, by welding or soldering. The B terminal 24 is exposed on the upper surface of the case connecting portion 253 of the power circuit case 25.
- the ground terminals as the second terminals connected to the ground potential are four ground terminals provided in contact with the outer wall 255 in the outer case portion 251 of the power circuit case 25, as well shown in FIG. 26a, and seven ground terminals 26a1 molded on the outer wall 255 and exposed on the inner wall surface of the outer wall 255.
- Six of these seven ground terminals 26a1 are electrically and mechanically connected to the respective terminals 22b of the six power modules 21 by welding or soldering, and the other one ground terminal 26a1 is It is electrically and mechanically connected to the terminal 260b of the connecting portion 260.
- the winding connection terminal 26b as the third terminal is molded on the outer wall 255 of the outer case portion 251 of the power circuit case 25 as shown in FIG. In addition to being exposed at six locations, the outer peripheral portion of the outer case portion 251 of the power circuit case 25 is exposed at six locations.
- the winding connection terminals 26b exposed at six locations on the inner wall surface of the outer wall 255 are electrically and mechanically connected to the terminals 22c of the six power modules 21 by welding or soldering, respectively, and the outer peripheral edge of the outer case portion 251.
- the winding connection terminals 26 b exposed at six locations are connected to the respective phase windings of the six-phase stator windings 301 connected to the connecting board 50.
- the terminals 26b exposed at two locations on the inner side surface of the outer wall 255 are electrically and mechanically connected to the two terminals 260c of the connecting portion 260 by welding or soldering.
- a bus bar (hereinafter referred to as a B bus bar) 30 electrically connected to the positive electrode of an external battery has three apex portions 301 and 302 corresponding to the apexes of a triangle, as well shown in FIG. , 303, and the apex portions 301, 302, 303 serve as fixed support portions of the B bus bar 30. These vertex portions 301, 302, and 303 are fixed to the heat sink 23 by screws 31 and 32.
- the B bus bar 30 is disposed on the side opposite to the heat sink 23 with respect to the power module 21.
- B bus bar 30 is formed of a metal member made of aluminum.
- the apex portion 301 of the B bus bar 30 is formed by screwing the female screw formed thereon with the screw 31 inserted from the front surface of the heat sink 23 through the insulating member 33.
- the insulating member 33, the power circuit case 25, the bush 27 a, and the B terminal 24 are fixed to the heat sink 23.
- the apex portion 302 of the B bus bar 30 is formed by screwing the female screw formed thereon with the screw 32 inserted through the insulating member 33 from the front side surface of the heat sink 23, so that the insulating member 33, the power circuit It is fixed to the heat sink 23 via the case 25 and the bush 27b.
- the apex portion 303 of the bus bar 30 is not shown in FIG.
- the apex portion 303 is also a screw in which the female screw formed at the apex portion 303 is inserted from the front side surface of the heat sink 23, similarly to the apex portion 302.
- the insulating member 33 By being screwed to 32, it is fixed to the heat sink 23 via the insulating member 33, the power circuit case 25, and the bush 27b.
- an insulating member 33 is interposed between the heat sink 23 and the screws 31 and 32 so that the heat sink 23 does not become a battery potential.
- the aforementioned bushes 27a and 27b are molded in the power circuit case 25.
- the power circuit case 25 is interposed via the bushes 27a, 27b by the tightening force of the screws 31, 32.
- the thickness of the power circuit portion 25 is reduced, and the heat withstand of the resin forming the power circuit case 25 is reduced.
- the B terminal 24 provided in the connecting portion 253 of the power circuit case 25 is pressed against the apex portion 301 of the B bus bar 30 by the tightening force of the screw 31 as described above, and is electrically connected to the B bus bar 30.
- the B bus bar 30 is electrically connected to the B terminal 24 only at one point of the apex portion 301 thereof.
- the B bus bar 30 is mechanically coupled to the heat sink 23 via the power circuit case 25 at three locations by the apex portions 301, 302, and 303 being screwed with the screws 31 and 32. Fixedly supported.
- Each vertex 301, 302, 303 of the B bus bar 30 forms a triangular vertex.
- the power input / output bolt 11 constituting the power input / output conductor is located at one side of the triangle in the B bus bar 30, that is, substantially at the center on the line connecting the apexes 301 and 302. Arranged and fixed to the B bus bar 30. That is, the power input / output bolt 11 is arranged so as not to be coaxial with the fixed support portion of the B bus bar 30, and the fixed support portion of the B bus bar 30 and the fixed support portion of the power input / output bolt 11 by the B bus bar. Are arranged on substantially the same plane.
- the power input / output bolt 11 is press-fitted into a through hole provided in the B bus bar 30 with its head abutting against the B bus bar 30 and provided in the rear bracket 2. It penetrates the formed through hole.
- the power input / output bolt 11 is screwed into a nut 36 provided outside the rear bracket 2 and is fixed to the B bus bar 30 and the rear bracket 2 via a bush 35 and a resin insulating member 34.
- the power input / output bolt 11 may be arranged inside the apex of a triangle formed by the apex portions 301, 302, and 303 of the B bus bar 30.
- the ground terminals 26a and 26a1 as the second terminals and the rear bracket 2 are in contact with each other and electrically connected to each other, and a bolt (not shown) is connected to the rear bracket 2. It is fixed by. Further, the power circuit case 25 and the heat sink 23 of the power circuit unit 20 are fixed inside the rear bracket 2 by means such as bolts not shown.
- the power input / output bolt 11 is connected to a battery harness or the like on the positive electrode side of the battery provided outside the dynamoelectric machine (see FIG. (Not shown).
- the pulley 12 is connected to a pulley (not shown) on the internal combustion engine side provided on the output shaft of the internal combustion engine via a belt.
- the control circuit provided on the control circuit board 40 is operated so as to operate the power conversion circuit constituted by each power module 21 as an inverter. Switching control of the semiconductor switching element of each power module 21 is performed by the gate signal.
- the DC power input from the battery to the terminal 22a of each power module 21 via the power input / output bolt 11, the B bus bar 30, and the B terminal 24 is converted into a six-phase AC by the inverter configured by the power module 21. It is converted into electric power and supplied to each phase winding of the 6-phase stator winding 301 via the terminal 22 b of each power module 21.
- the rotor 4 is driven by the interaction between the rotating magnetic field generated by the stator winding 301 and the magnetic field generated by the field winding 7 provided on the rotor 4, and is driven from the pulley 12 via the belt. Power is transmitted to the internal combustion engine.
- each power module 21 the power of the internal combustion engine is transmitted to the pulley 12 via the belt and the rotor 4 is driven, and each power module 21
- the semiconductor switching element of each power module 21 is switching-controlled by a gate signal from a control circuit provided on the control circuit board 40 so that the configured power conversion circuit is operated as a converter.
- the AC power induced in each phase winding of the stator winding 301 is applied to each power module 21 via the terminal 22b of each power module 21, and converted into DC power by the converter configured by each power module 21.
- the battery is supplied from the terminal 22a of each power module 21 to the battery via the B terminal 24, the B bus bar 30, and the power input / output bolt 11.
- controller-integrated dynamoelectric machine since there is only one electrical connection between the B bus bar 30 and the B terminal 24, each power module 21 There is no difference in the potential applied to the, and the error of the energization current can be reduced. Moreover, since the fixing location of the B bus bar 24 is also fixed other than the electrical connection portion, the load applied to the electrical connection portion can be reduced, and the reliability of the electrical connection portion can be improved.
- the power input / output bolt 11 for electrically connecting and holding the battery harness and the member to which the battery harness is connected vibrates due to the vibration of the vehicle and the rotating electric machine, a large load is applied from the power input / output bolt 11 to the B bus bar 30.
- the B bus bar 30 fixed support part is made to correspond to each vertex of the triangle, and the power input / output bolt 11 is arranged on one side of the triangle formed by the fixed support part of the bus bar 30 or inside the one side.
- the load applied to the power input / output bolts can be distributed and received by the fixed support portions of the B bus bar 30, the stress applied to the B bus bar 30 can be reduced, and the breakage of the B bus bar 30 can be prevented. be able to.
- the heat sink 23 and the power circuit case 25 are sandwiched between the B bus bar 30 and the screws 31, 32, the B bus bar 30, the heat sink 23, and the power circuit case 25 can be firmly fixed and supported. it can.
- the power input / output bolt 11 is arranged so as not to be coaxial with the fixed support portion of the B bus bar 30, and the fixed support portion of the B bus bar 30 and the fixed support portion of the power input / output bolt 11 by the B bus bar. Are arranged on substantially the same plane.
- the axial length of the B bus bar can be shortened, and the axial length of the rotating electrical machine can be shortened. it can.
- the fixing support of the B bus bar 30 is firmly supported at the position corresponding to the apex of the triangle, so that the screw size of the fixing screws 31 and 32 of the B bus bar 30 is larger than the screw size of the power input / output bolt 11 Can be made smaller.
- the screw size of the power input / output bolt 11 is M8, and the screw size of the screws 31 and 32 for fixing the B bus bar 30 is M5. Is miniaturized.
- the B bus bar 30 is included in the rear bracket 2 and disposed on the rear side of the stator 3 and the rotor 4 of the rotating electrical machine, and the heat sink 23 is disposed on the front side of the power module 21.
- the B bus bar 30 is disposed on the rear side of the power module 21.
- the rear bracket 2 is formed with a hole for leading the electric input / output bolt 11 press-fitted into the through hole of the B bus bar 30 to the outside, and the outside is covered with an insulating member 34 such as a resin.
- the broken electrical conduction bush 35 is fixed to the B bus bar 30 by a nut 36.
- a battery terminal constituted by the power input / output bolt 11 is located outside (rear part) of the rear bracket 2.
- the B bus bar 30 is protected by the bracket 2 against the flying object from the outside of the rotating electrical machine, it is possible to prevent the B bus bar 30 from being damaged by the flying object and a short circuit between different potentials. .
- the B bus bar 30 can be prevented from being damaged or contacted with an external potential difference. Short circuit can be prevented and the reliability of the rotating electrical machine can be improved.
- the fixed support portion of the B bus bar 30 is formed so as to correspond to the apex of the triangle, but may be made to correspond to the apex of a polygon other than the triangle.
- the B bus bar 30 is formed of an aluminum metal member, but may be formed of a copper-based or iron-based metal member.
- FIG. 6 is a longitudinal sectional view showing a main part of a power circuit portion and a B bus bar of a controller-integrated dynamoelectric machine according to Embodiment 2 of the present invention
- FIG. 7 is a controller-integrated type according to Embodiment 2 of the present invention. It is a partial side view of the front side which shows the principal part of the power circuit part of a rotary electric machine.
- the B bus bar 30 is provided with three apexes corresponding to the apexes of the triangle, as in the first embodiment, and each apex is fixedly supported by the B bus bar 30.
- the B bus bar 30 is disposed on the side opposite to the heat sink 23 with respect to the power module.
- B bus bar 30 is formed of a metal member made of aluminum.
- Bushings 27 a and 27 b with screw holes on the inside are molded in a resin power circuit case 25.
- screws 31 and 32 inserted into the through holes provided in the rear bracket 2 from the outside of the rear bracket 2 are used for the bush 27a. , 27b.
- the B bus bar 30 is electrically connected to the B terminal 24 of the power circuit case 25 through a single connection point 31A, and is fixedly supported by the rear bracket 2 via the insulating member 37 with the screw 31.
- the B bus bar 30 is fixedly supported by the screw 32 via the insulating member 37 on the rear bracket 2 at two locations 32A and 32B.
- the B bus bar 30 is included in the rear bracket 2.
- the heat sink 23 is not directly involved in supporting and fixing the B bus bar 30 and is not directly coupled to the screws 31 and 32 for supporting and fixing the B bus 30. Therefore, the heat sink 23 is fixed integrally to the power circuit case 25, and is fixed to the rear bracket 2 via the power circuit case 25.
- Other configurations are the same as those in the first embodiment.
- the B bus bar 30 need not be fixedly supported to the heat sink 23 by mechanically holding the B bus bar 30 to the rear bracket 2, and therefore Since the space constituting the fins 23a of the heat sink 23 can be increased, the cooling performance is improved and the temperature rise of the power module 21 can be suppressed. Further, since the B bus bar 30 can be directly fixed and supported on the rear bracket 2, the B bus bar 30 can be firmly supported and fixed.
- the B bus bar 30 has one electrical connection location, and the B bus bar 30 has two mechanical fixing locations other than the electrical support location. Exists. And the fixed support part of B bus-bar 30 respond
- the B bus bar 30 is protected by the bracket 2 against flying objects from the outside of the rotating electrical machine. Short circuit between different potentials can be prevented. In addition, even when the vehicle collides, since the impact from the outside of the rotating electrical machine is impacted by the bracket 2, the B bus bar 30 can be prevented from being damaged or contacted with an external potential difference. Short circuit can be prevented and the reliability of the rotating electrical machine can be improved.
- FIG. 8 is a longitudinal sectional view showing the main parts of the power circuit portion and the B bus bar of the controller-integrated dynamoelectric machine according to Embodiment 3 of the present invention.
- the B bus bar 30 formed of an aluminum metal member is covered with a resin 38 and is electrically insulated from the rear bracket 2. It is fixed outside.
- the bush 27a with a screw hole on the inside is molded in a resin power circuit case 25.
- the heat sink 23 and the power circuit case 25 are fixedly supported on the inner surface of the rear bracket 2 by screws or the like (not shown).
- the B bus bar 30, the power circuit case 25, and the heat sink 23 are mechanically fixed by screwing screws 31 inserted from the outside of the rear bracket 2 into bushes 27a into through holes provided in the rear bracket 2. ing.
- a part of the B terminal 24 is formed so as to be exposed on the upper surface of the bush 27a, and a screw 31 is fastened to the bush 27a in a state where the exposed portion is in contact with the B bus bar 30 to form a connection point 31A. Electrical connection between the B terminal 24 and the B bus bar 30 is performed at one point of the connection point A.
- connection point 31A In addition to the connection point 31A described above, the B bus bar 30 has three connection points spaced apart from each other by three screws 32 (only one screw is shown in FIG. 8). 32A, 32B, and 32C (only the connection point 32A is shown in FIG. 8) is fixedly supported outside the rear bracket 2 via an insulator 38. Other configurations are the same as those in the first and second embodiments.
- the B bus bar 30 is not necessarily provided with three apexes corresponding to the apexes of the triangle as in the first and second embodiments, and may be formed in an arbitrary shape. it can.
- the B bus bar 30 is mechanically fixedly held on the rear bracket 2 to reduce the number of places to be fixedly supported on the heat sink 23, thereby configuring the fins 23a. Therefore, the cooling performance is improved, and the temperature rise of the power module 21 can be suppressed.
- the controller-integrated rotating electrical machine according to the present invention can be used in the field, for example, for rotating electrical machines for vehicles such as automobiles.
- Controller-integrated rotating electrical machine 1 Front bracket 2 Rear bracket 3 Stator core 4 Rotor core 301 Stator Winding 7 Rotor Winding 101 Bolt 6 Rotor Shaft 61 Front Side Bearing 221 Rear Axial Extension Part 62 Rear Side Bearing 51 Front Side Cooling Fan 52 Rear Side Cooling Fan 12 Pulley 8 Slip ring 90 Brush holder 9 Brush 10 Magnetic pole position detection sensor 111 sensor rotor 112 sensor stator 113 sensor winding 40 control circuit board 41 board storage case 20 power circuit part 21 power module 24 B terminal 26a1 ground terminal 26b, 22c terminal 23 heat sink 11 power input / output bolt 231 heat sink through hole 25 power circuit case 251 outer case part 252 Inner case portion 253 Case connection portion 254 Through hole 255 Outer wall 257 Power module storage portion 260 Control circuit board connection portion 40 Control circuit board 28 Power circuit waterproof resin 22a, 22b, 22c Terminal 260a Terminal 26a1 Grounding terminal 30 B bus bar 301, 302, 303 B bus bar apex 31, 32 Screw 33, 34, 37, 38 Insulating member
Abstract
Description
なお、この発明において、バスバーがその機械的接続部によりケースを介してヒートシンクに機械的に接続される場合をも当然に含むものである。
図1は、この発明の実施の形態1による制御装置一体型回転電機の縦断面図である。図1に於いて、車両用の制御装置一体型回転電機100は、フロントブラケット1とリヤブラケット2により支持された固定子鉄心3と、この固定子鉄心3の内側空間内に挿入された回転子鉄心4を備えている。回転子鉄心4は、固定子鉄心3の内周面に空隙を介して対向する複数の回転子磁極を備える。
次に、この発明の実施の形態2による制御装置一体型回転電機について説明する。図6は、この発明の実施の形態2による制御装置一体型回転電機のパワー回路部およびBバスバーの要部を示す縦断面図、図7は、この発明の実施の形態2による制御装置一体型回転電機のパワー回路部の要部を示すフロント側の部分側面図である。
次に、この発明の実施の形態3による制御装置一体型回転電機について説明する。図8は、この発明の実施の形態3による制御装置一体型回転電機のパワー回路部およびBバスバーの要部を示す縦断面図である。図8において、この実施の形態3においては、アルミニウム製の金属部材により形成されたBバスバー30は、樹脂38で覆われてリヤブラケット2に対して電気的に絶縁されると共に、リヤブラケット2の外部に固定されることを特徴とする。
2 リヤブラケット 3 固定子鉄心 4 回転子鉄心
301 固定子巻線 7 回転子巻線 101 ボルト
6 回転子軸 61 フロント側軸受
221 リヤ側ブラケットの中央軸方向延出部 62 リヤ側軸受
51 フロント側冷却ファン 52 リヤ側冷却ファン
12 プーリ 8 スリップリング 90 ブラシホルダー
9 ブラシ 10 磁極位置検出センサー
111 センサー回転子 112 センサー固定子
113 センサー巻線 40 制御回路基板 41 基板収納ケース
20 パワー回路部 21 パワーモジュール 24 Bターミナル
26a1 接地ターミナル 26b、22c ターミナル
23 ヒートシンク 11 電力入出力用ボルト
231 ヒートシンの貫通穴 25 パワー回路ケース
251 外側ケース部 252 内側ケース部
253 ケース連結部 254 貫通穴 255 外壁
257 パワーモジュール収納部 260 制御回路基板接続部
40 制御回路基板 28 パワー回路防水用樹脂
22a、22b、22c ターミナル 260a ターミナル
26a1 接地ターミナル 30 Bバスバー
301、302、303 Bバスバーの頂点部
31、32 ネジ 33、34、37、38 絶縁部材
27a、27b、35 ブッシュ 36 ナット
50 コネクティングボード
Claims (11)
- 交流電力を発生し若しくは交流電力が供給される固定子巻線を備えた固定子と、
前記固定子巻線と磁気的に結合する回転子磁極を備えた回転子と、
前記固定子に固定され、前記回転子を回動自在に支持するブラケットと、
前記固定子巻線と外部の直流電源との間に接続され、前記直流電力と前記交流電力との間の電力変換を行なう電力変換回路を構成する複数のパワーモジュールと、
前記複数のパワーモジュールを搭載し、前記パワーモジュールを冷却するヒートシンクと、
前記直流電源に電気的に接続されるバスバーと、
前記バスバーに固定されると共に、前記直流電源と前記バスバーとに電気的に接続される電力入出力導体と、
前記ヒートシンクに固定され、前記バスバーと複数のパワーモジュールとに電気的に接続されるターミナルを備えた絶縁物製のケースと、
を備え、
前記バスバーは、一箇所の電気的接続部と、前記電気的接続部以外の少なくとも一箇所の機械的接続部とを備え、前記一箇所の電気的接続部により前記ターミナルに電気的に接続され、前記少なくとも一箇所の機械的接続部により絶縁物を介して前記ヒートシンクに機械的に接続されている、
ことを特徴とする制御装置一体型回転電機。 - 交流電力を発生し若しくは交流電力が供給される固定子巻線を備えた固定子と、
前記固定子巻線と磁気的に結合する回転子磁極を備えた回転子と、
前記固定子に固定され、前記回転子を回動自在に支持するブラケットと、
前記固定子巻線と外部の直流電源との間に接続され、前記直流電力と前記交流電力との間の電力変換を行なう電力変換回路を構成する複数のパワーモジュールと、
前記複数のパワーモジュールを搭載し、前記パワーモジュールを冷却するヒートシンクと、
前記ヒートシンクに固定され、前記複数のパワーモジュールに電気的に接続されるターミナルを備えた絶縁物製のケースと、
前記直流電源と前記ターミナルとにそれぞれ電気的に接続されるバスバーと、
前記バスバーに固定されると共に、前記直流電源と前記バスバーとに電気的に接続される電力入出力導体と、
を備え、
前記バスバーは、一箇所の電気的接続部と、前記電気的接続部以外の少なくとも一箇所の機械的接続部とを備え、前記一箇所の電気的接続部により前記ターミナルに電気的に接続され、前記少なくとも一箇所の機械的接続部により絶縁物を介して前記ブラケットに機械的に接続されている、
ことを特徴とする制御装置一体型回転電機。 - 前記バスバーは、前記機械的接続部を少なくとも2箇所に備え、
前記一箇所の電気的接続部と前記少なくとも2箇所の機械的接続部とは、多角形の各頂点部に対応する位置にそれぞれ分散して前記バスバーに配置されている、
ことを特徴とする請求項1または2に記載の制御装置一体型回転電機。 - 前記電力入出力導体は、前記多角形の一辺の上、若しくは前記多角形の各辺の内側で前記ブスバーに固定されている、
ことを特徴とする請求項3に記載の制御装置一体型回転電機。 - 前記電力入出力導体は、前記バスバーの前記電気的接続部及び前記機械的接続部以外の位置において前記バスバーに固定されている、
ことを特徴とする請求項1乃至4のうちの何れか一項に記載の制御装置一体型回転電機。 - 前記電力入出力導体は、ボルトにより構成され、
前記バスバーの前記機械的接続部による前記機械的接続はネジにより行なわれ、
前記ネジは、前記ボルトのネジ径よりの小さいネジ径を有する、
ことを特徴とする請求項1乃至5のうちの何れか一項に記載の制御装置一体型回転電機。 - 前記複数のパワーモジュールを搭載した前記ヒートシンクと、前記絶縁物製のケースと、前記バスバーは、前記ブラケットの内側に配置され、
前記バスバーに固定された前記電力入出力導体は、前記ブラケットを貫通して前記ブラケットの外部に導出されている、
ことを特徴とする請求項1乃至6のうちの何れか一項に記載の制御装置一体型回転電機。 - 前記複数のパワーモジュールを搭載した前記ヒートシンクと、前記絶縁物製のケースは、前記ブラケットの内側に配置され、
前記バスバーは、前記ブラケットの外側に配置されている、
ことを特徴とする請求項2乃至6のうちの何れか一項に記載の制御装置一体型回転電機。 - 前記ヒートシンクは、中央部に貫通穴を備えた環状に形成され、
前記複数のパワーモジュールは、前記貫通穴の周りに放射状に配置されている、
ことを特徴とする請求項1乃至8のうちの何れか一項に記載の制御装置一体型回転電機。 - 前記ケースは、環状の外側ケース部と、前記外側ケース部の内側に配置された環状の内側ケース部と、前記外側ケース部と前記内側ケース部とを連結するケース連結部とを備え、
前記複数のパワーモジュールは、前記外側ケース部と前記内側ケース部との間に放射状に配置されている、
ことを特徴とする請求項1乃至9のうちの何れか一項に記載の制御装置一体型回転電機。 - 前記ターミナルは、前記ケースのケース連結部の表面に少なくとも一部が露出しており、
前記バスバーは、前記電気的接続部が前記ケース連結部の表面において前記露出したターミナルに当接することにより、前記ターミナルに電気的に接続される、
ことを特徴とする請求項10に記載の制御装置一体型回転電機。
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5665961B1 (ja) * | 2013-12-26 | 2015-02-04 | 三菱電機株式会社 | 回転電機 |
FR3017501A1 (fr) * | 2014-02-07 | 2015-08-14 | Mitsubishi Electric Corp | Machine electrique rotative a organe de commande integre |
JP2016158500A (ja) * | 2016-06-07 | 2016-09-01 | 三菱電機株式会社 | 制御装置一体型回転電機 |
WO2016185510A1 (ja) * | 2015-05-15 | 2016-11-24 | 三菱電機株式会社 | 車両用交流発電機 |
CN113965024A (zh) * | 2021-10-20 | 2022-01-21 | 中国科学院电工研究所 | 一种电动汽车电机与电机控制器的集成系统 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103299519B (zh) * | 2011-01-06 | 2016-05-11 | 三菱电机株式会社 | 旋转电机 |
JP5476407B2 (ja) * | 2012-03-14 | 2014-04-23 | 株式会社安川電機 | モータ駆動装置および車両 |
EP3133720B1 (en) * | 2014-05-01 | 2020-02-19 | Mitsubishi Electric Corporation | Vehicle control device |
US10250104B2 (en) | 2014-10-08 | 2019-04-02 | Borgwarner Inc. | Circuit layout for electric machine control electronics |
CN107112848B (zh) * | 2014-10-08 | 2019-05-07 | 瑞美技术有限责任公司 | 可径向地适应的相引线连接 |
CN108352771B (zh) * | 2015-11-10 | 2020-04-14 | 三菱电机株式会社 | 交流发电机 |
JP6610944B2 (ja) | 2015-12-18 | 2019-11-27 | 株式会社デンソー | 制御装置一体型回転電機 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002136039A (ja) * | 2000-10-20 | 2002-05-10 | Denso Corp | 交流発電機 |
WO2006129031A1 (fr) * | 2005-05-31 | 2006-12-07 | Valeo Equipements Electriques Moteur | Piece d'interconnexion de puissance pour machine electrique tournante |
JP2007166822A (ja) * | 2005-12-15 | 2007-06-28 | Mitsubishi Electric Corp | 多相交流回転電機 |
JP2008178247A (ja) * | 2007-01-19 | 2008-07-31 | Mitsubishi Electric Corp | 制御装置一体型回転電機、及び制御装置一体型回転電機の製造方法 |
WO2008126214A1 (ja) * | 2007-03-28 | 2008-10-23 | Mitsubishi Electric Corporation | 車両用交流発電機 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS602864B2 (ja) * | 1977-03-19 | 1985-01-24 | 株式会社日立製作所 | 内燃機関用直流発電装置 |
US4841182A (en) * | 1986-08-28 | 1989-06-20 | Mitsuba Electric Mfg., Co., Ltd. | Rectifier in alternating generators for automotive vehicles |
JP3342987B2 (ja) * | 1995-06-28 | 2002-11-11 | 三菱電機株式会社 | 車両用交流発電機 |
JP3543881B2 (ja) * | 1995-11-08 | 2004-07-21 | 株式会社デンソー | 交流発電機 |
JP4722176B2 (ja) * | 2008-10-27 | 2011-07-13 | 三菱電機株式会社 | 制御装置一体型回転電機 |
JP2010136499A (ja) * | 2008-12-03 | 2010-06-17 | Mitsubishi Electric Corp | 制御装置一体型回転電機 |
JP4754009B2 (ja) * | 2009-06-04 | 2011-08-24 | 三菱電機株式会社 | 車両用回転電機 |
US9667124B2 (en) * | 2011-08-08 | 2017-05-30 | Mitsubishi Electric Corporation | Controller-integrated electric rotating machine with brush restricting elements and assembling and disassembling methods of the same |
-
2010
- 2010-12-13 JP JP2012548553A patent/JP5456912B2/ja active Active
- 2010-12-13 CN CN201080069411.6A patent/CN103155369B/zh active Active
- 2010-12-13 WO PCT/JP2010/072351 patent/WO2012081068A1/ja active Application Filing
- 2010-12-13 US US13/818,003 patent/US9136740B2/en not_active Expired - Fee Related
- 2010-12-13 EP EP10860871.2A patent/EP2624417B1/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002136039A (ja) * | 2000-10-20 | 2002-05-10 | Denso Corp | 交流発電機 |
WO2006129031A1 (fr) * | 2005-05-31 | 2006-12-07 | Valeo Equipements Electriques Moteur | Piece d'interconnexion de puissance pour machine electrique tournante |
JP2008543261A (ja) | 2005-05-31 | 2008-11-27 | ヴァレオ エキプマン エレクトリク モトゥール | 回転電気機器のための電力相互接続部品 |
JP2007166822A (ja) * | 2005-12-15 | 2007-06-28 | Mitsubishi Electric Corp | 多相交流回転電機 |
JP2008178247A (ja) * | 2007-01-19 | 2008-07-31 | Mitsubishi Electric Corp | 制御装置一体型回転電機、及び制御装置一体型回転電機の製造方法 |
WO2008126214A1 (ja) * | 2007-03-28 | 2008-10-23 | Mitsubishi Electric Corporation | 車両用交流発電機 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2624417A4 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5665961B1 (ja) * | 2013-12-26 | 2015-02-04 | 三菱電機株式会社 | 回転電機 |
FR3017501A1 (fr) * | 2014-02-07 | 2015-08-14 | Mitsubishi Electric Corp | Machine electrique rotative a organe de commande integre |
JP2015149844A (ja) * | 2014-02-07 | 2015-08-20 | 三菱電機株式会社 | 制御装置一体型回転電機 |
US9899898B2 (en) | 2014-02-07 | 2018-02-20 | Mitsubishi Electric Corporation | Controller-integrated rotary electric machine |
WO2016185510A1 (ja) * | 2015-05-15 | 2016-11-24 | 三菱電機株式会社 | 車両用交流発電機 |
JPWO2016185510A1 (ja) * | 2015-05-15 | 2017-09-14 | 三菱電機株式会社 | 車両用交流発電機 |
US10523092B2 (en) | 2015-05-15 | 2019-12-31 | Mitsubishi Electric Corporation | Vehicle AC power generator |
JP2016158500A (ja) * | 2016-06-07 | 2016-09-01 | 三菱電機株式会社 | 制御装置一体型回転電機 |
CN113965024A (zh) * | 2021-10-20 | 2022-01-21 | 中国科学院电工研究所 | 一种电动汽车电机与电机控制器的集成系统 |
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