WO2010058478A1 - ブリーザ装置および駆動装置 - Google Patents
ブリーザ装置および駆動装置 Download PDFInfo
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- WO2010058478A1 WO2010058478A1 PCT/JP2008/071216 JP2008071216W WO2010058478A1 WO 2010058478 A1 WO2010058478 A1 WO 2010058478A1 JP 2008071216 W JP2008071216 W JP 2008071216W WO 2010058478 A1 WO2010058478 A1 WO 2010058478A1
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- stator core
- breather
- peripheral surface
- breather device
- outer peripheral
- Prior art date
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
- B60K6/405—Housings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0812—Fluid pressure
- F16H2007/0817—Fluid pressure with means for venting unwanted gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
- F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
- F16H2037/0866—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Definitions
- the present invention relates to a breather device and a drive device, and more particularly, to a breather device and a drive device in which blowing of oil and oil mist is suppressed.
- a transmission unit for a hybrid vehicle described in Japanese Patent Laid-Open No. 2001-260675 includes a unit housing, and the unit housing includes a first dry chamber that houses an electromagnetic clutch, A second dry chamber that houses the motor and a speed change mechanism are provided.
- a breather hole for keeping the internal pressure in the second dry chamber constant is formed, and a breather pipe is press-fitted into the breather hole.
- the breather pipe communicates with the second dry chamber and the outside of the unit housing, and the breather pipe is made of a non-conductive material.
- the breather pipe is made of a non-conductive material, so that when the transmission unit is mounted on the vehicle, it is hit against the engine, etc., or the transmission unit is dropped or dropped. Even if the breather pipe enters into the transmission due to the impact when it comes into contact with the high voltage components in the second dry chamber, the purpose is to prevent a short circuit. JP 2001-260675 A
- the breather pipe of the transmission unit is connected to a portion of the inner peripheral surface of the unit housing located on the outer peripheral side of the stator coil end. Since there is a gap between the coil end and the inner peripheral surface of the unit housing, oil and oil mist in the unit housing are discharged to the outside through the gap and the breather pipe.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a breather device in which discharge of oil, oil mist, and the like is suppressed, and a drive device including the breather device. That is.
- the breather device is a breather device that is provided in a housing case that houses a rotating electrical machine and adjusts the internal pressure in the housing case.
- the rotating electrical machine includes a stator core formed by laminating a plurality of steel plates, and communicates with the inside of the housing case via a gap between the steel plates.
- the housing case is provided adjacent to the outer peripheral surface of the stator core and radially outward from the stator core.
- the breather device includes a breather chamber defined by the outer peripheral surface of the stator core and the housing case, and a valve body that switches a connection state between the breather chamber and the outside. And the part located in the circumference
- the rotating electrical machine includes a rotor disposed in the stator core and rotatably provided around the rotation center line, and the rotating electrical machine is disposed above the rotation center line.
- the stator core includes a plurality of seats formed so as to project radially outward from the outer peripheral surface of the stator core and spaced from each other in the circumferential direction of the stator core.
- the rotating electrical machine includes a fixing member that is inserted into a through hole formed in the seat portion and fixes the stator core to the housing case, and a portion located between the seat portions on the outer peripheral surface of the stator core, and an inner portion of the housing case The peripheral surfaces are in close contact with each other, adjacent to a portion located between the seat portions on the outer peripheral surface of the stator core, and positioned on the radially outer side.
- the outer peripheral surface of the stator core is adjacent to a portion closer to the circumferential central portion between the seat portions than the seat portion or a portion located in the circumferential central portion, and is located radially outward.
- the outer peripheral surface of the stator core is adjacent to a portion closer to the seat portion than the central portion in the circumferential direction between the seat portions, and is located radially outward.
- the rotating electrical machine, a housing case, and the breather device according to claim 1 are provided.
- the breather device and the drive device according to the present invention it is possible to suppress the blowing of oil and oil mist.
- FIG. 1 is a schematic diagram illustrating a configuration of a hybrid vehicle to which a drive device according to an embodiment of the present invention is applied. It is a circuit diagram which shows the structure of the principal part of PCU which drives and controls a motor generator. It is sectional drawing which shows a motor generator and the surrounding structure. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. It is sectional drawing which shows the modification of the mounting position of a breather apparatus.
- FIG. 1 is a schematic diagram showing a configuration of a hybrid vehicle to which a drive device according to one embodiment of the present invention is applied.
- the hybrid vehicle includes a drive device 200 that rotates drive wheels.
- Drive device 200 includes engine 100, motor generators MG ⁇ b> 1 and MG ⁇ b> 2, power split mechanism 300, differential mechanism 400, and casing. 600.
- casing 600 a storage chamber 610 that stores motor generator MG2, a storage chamber 611 that stores power split mechanism 300, and a storage chamber 612 that stores motor generator MG1 are formed.
- the storage chamber 610 is provided with a breather device 700 for adjusting the internal pressure in the storage chamber 610 and setting the internal pressure in the storage chamber 610 as an external pressure outside the storage chamber 610.
- the storage chamber 610, the storage chamber 611, and the storage chamber 612 are in communication with each other, and the internal pressure in the storage chamber 611 and the storage chamber 612 is also adjusted by adjusting the internal pressure in the storage chamber 610.
- Motor generators MG1 and MG2 include rotors 211 and 221 and stators 212 and 222, respectively.
- the power split mechanism 300 includes planetary gears 310 and 320.
- Planetary gears 310 and 320 include sun gears 311 and 321, pinion gears 312 and 322, planetary carriers 313 and 323, and ring gears 314 and 324, respectively.
- crankshaft 110 of the engine 100, the rotor 211 of the motor generator MG1, and the rotor 221 of the motor generator MG2 rotate about the same axis.
- the sun gear 311 in the planetary gear 310 is coupled to a hollow sun gear shaft penetrating the crankshaft 110 through the shaft center.
- the ring gear 314 is supported so as to be rotatable coaxially with the crankshaft 110.
- the pinion gear 312 is disposed between the sun gear 311 and the ring gear 314 and revolves while rotating on the outer periphery of the sun gear 311.
- Planetary carrier 313 is coupled to the end of crankshaft 110 and supports the rotation shaft of each pinion gear 312.
- the counter drive gear for taking out power from the power split mechanism 300 rotates integrally with the ring gear 314.
- the counter drive gear is connected to the counter gear 350. Power is transmitted between the counter drive gear and the counter gear 350.
- the counter gear 350 drives the differential mechanism 400. On the downhill or the like, wheel rotation is transmitted to the differential mechanism 400, and the counter gear 350 is driven by the differential mechanism 400.
- the motor generator MG1 mainly operates as a generator that generates electromotive force at both ends of the three-phase coil by the interaction between the magnetic field generated by the permanent magnet and the rotation of the rotor 211.
- the rotor 221 of the motor generator MG2 is coupled to a ring gear case that rotates integrally with the ring gear 314 of the planetary gear 310 via a planetary gear 320 as a speed reducer.
- the motor generator MG2 operates as an electric motor that rotationally drives the rotor 221 by the interaction between the magnetic field formed by the permanent magnet embedded in the rotor 221 and the magnetic field formed by the three-phase coil wound around the stator 222.
- Motor generator MG2 also operates as a generator that generates electromotive force at both ends of the three-phase coil by the interaction between the magnetic field generated by the permanent magnet and the rotation of rotor 221.
- Planetary gear 320 decelerates with a structure in which planetary carrier 323, which is one of the rotating elements, is fixed to the case of the vehicle drive device. That is, planetary gear 320 meshes with sun gear 321 coupled to the shaft of rotor 221, ring gear 324 that rotates integrally with ring gear 314, ring gear 324 and sun gear 321, and pinion gear 322 that transmits the rotation of sun gear 321 to ring gear 324. Including.
- FIG. 2 is a circuit diagram showing a configuration of a main part of PCU 500 that drives and controls motor generators MG1 and MG2.
- PCU 500 includes a converter 510, inverters 520 and 530, a control device 540, a filter capacitor C1, and a smoothing capacitor C2.
- Converter 510 is connected between battery B and inverters 520 and 530, and inverters 520 and 530 are connected to motor generators MG1 and MG2, respectively.
- Converter 510 includes power transistors Q1 and Q2, diodes D1 and D2, and a reactor L.
- Power transistors Q1 and Q2 are connected in series and receive a control signal from control device 540 as a base.
- Diodes D1 and D2 are connected between the collector and emitter of power transistors Q1 and Q2, respectively, so that current flows from the emitter side to the collector side of power transistors Q1 and Q2.
- Reactor L has one end connected to power supply line PL1 connected to the positive electrode of battery B, and the other end connected to the connection point of power transistors Q1 and Q2.
- This converter 510 boosts the DC voltage received from battery B using reactor L, and supplies the boosted boosted voltage to power supply line PL2.
- Converter 510 steps down DC voltage received from inverters 520 and 530 to charge battery B.
- Inverters 520 and 530 include U-phase arms 521U and 531U, V-phase arms 521V and 531V, and W-phase arms 521W and 531W, respectively.
- U-phase arm 521U, V-phase arm 521V and W-phase arm 521W are connected in parallel between nodes N1 and N2.
- U-phase arm 531U, V-phase arm 531V, and W-phase arm 531W are connected in parallel between nodes N1 and N2.
- the U-phase arm 521U includes two power transistors Q3 and Q4 connected in series.
- U-phase arm 531U, V-phase arms 521V and 531V, and W-phase arms 521W and 531W each include two power transistors Q5 to Q14 connected in series.
- diodes D3 to D14 for passing a current from the emitter side to the collector side are connected between the collector and emitter of each of the power transistors Q3 to Q14.
- each phase arm of inverters 520 and 530 is connected to each phase end of each phase coil of motor generators MG1 and MG2.
- motor generators MG1 and MG2 one end of three coils of U, V, and W phases is commonly connected to the middle point.
- Filter capacitor C1 is connected between power supply lines PL1 and PL3, and smoothes the voltage level of power supply line PL1.
- Smoothing capacitor C2 is connected between power supply lines PL2 and PL3, and smoothes the voltage level of power supply line PL2.
- Inverters 520 and 530 convert DC voltage from smoothing capacitor C2 to AC voltage based on a drive signal from control device 540, and drive motor generators MG1 and MG2.
- Control device 540 calculates each phase coil voltage of motor generators MG1 and MG2 based on the motor torque command value, each phase current value of motor generators MG1 and MG2, and the input voltage of inverters 520 and 530, and the calculation result Based on this, a PWM (Pulse Width Modulation) signal for turning on / off the power transistors Q3 to Q14 is generated and output to the inverters 520 and 530.
- PWM Pulse Width Modulation
- Control device 540 calculates the duty ratio of power transistors Q1 and Q2 for optimizing the input voltage of inverters 520 and 530 based on the motor torque command value and the motor rotation speed described above, and based on the calculation result. Thus, a PWM signal for turning on / off the power transistors Q1 and Q2 is generated and output to the converter 510.
- control device 540 controls switching operations of power transistors Q1 to Q14 in converter 510 and inverters 520 and 530 in order to charge battery B by converting AC power generated by motor generators MG1 and MG2 into DC power. To do.
- FIG. 3 is a cross-sectional view showing a configuration of motor generator MG2 and its surroundings
- FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.
- motor generator MG ⁇ b> 2 includes a stator 222 formed in an annular shape and a rotor 221 provided to be rotatable about a rotation center line O.
- the stator 222 includes a stator core 222A formed in an annular shape, a stator coil 222B attached to the stator core 222A, and a fastening member (fixing member) 222C such as a bolt for fixing the stator core 222A to the casing 600.
- the stator core 222A is constituted by a laminated steel plate formed by laminating a plurality of electromagnetic steel plates 225. As shown in FIG. 4, the stator core 222 ⁇ / b> A includes an annular yoke portion 224 and a plurality of stator teeth 223 that protrude radially inward from the inner peripheral surface of the yoke portion 224. A stator coil 222B is attached to the stator teeth 223.
- the rotor 221 is inserted into the stator core 222A, and the rotor 221 includes a hollow rotating hollow shaft 230 supported at both ends by the casing 600.
- An oil pump drive shaft 231 is inserted into the rotating hollow shaft 230, and power from the engine 100 is applied to the oil pump drive shaft 231 via the crankshaft 110.
- the oil pump 240 is driven by the oil pump drive shaft 231 to supply oil to the bearing or to spray oil to the coil end of the stator coil 222B.
- the breather device 700 is provided in a portion of the casing 600 located on the outer peripheral side of the stator core 222A.
- the breather device 700 communicates with the interior of the storage chamber 610 through a gap between the electromagnetic steel plates 225.
- the air in the storage chamber 610 reaches the breather device 700 through the gap between the electromagnetic steel plates 225 from the inner peripheral surface of the stator core 222A and is exhausted to the outside.
- the breather device 700 includes a breather chamber 701 formed so as to open into the storage chamber 610, a breather pipe 702 inserted into the breather chamber 701, and the storage chamber 610 and the outside via the breather pipe 702. And a valve body 703 capable of switching the communication state.
- the opening of the breather chamber 701 that opens into the storage chamber 610 is closed by the outer peripheral surface of the laminated steel plate of the stator core 222A. Furthermore, the inner peripheral surface of the casing 600 located around the opening of the breather chamber 701 and the outer peripheral surface of the stator core 222A are in close contact with each other.
- a plurality of seats 227 are formed on the outer peripheral surface of the stator core 222A at intervals in the circumferential direction.
- Each seat portion 227 protrudes radially outward from the outer peripheral surface of the yoke portion 224, and a through hole 226 extending in the direction of the rotation center line O is formed in the seat portion 227.
- a fastening member 222C is inserted into each through hole 226, and the stator core 222A is fixed to the casing 600.
- a gap is provided between each seat 227 and the inner peripheral surface of the casing 600.
- a portion of the outer peripheral surface of the stator core 222A located between the seat portions 227 and the inner peripheral surface of the casing 600 are in close contact with each other without a substantial gap.
- the breather device 700 is adjacent to a portion located between the rear seats 227 on the outer peripheral surface of the stator core 222A, and is provided on the radially outer side. Therefore, around the breather device 700, the outer peripheral surface of the stator core 222A and the inner peripheral surface of the casing 600 are in close contact with each other. For this reason, oil enters between the outer peripheral surface of the stator core 222 ⁇ / b> A and the inner peripheral surface of the casing 600, and this entering oil is prevented from reaching the breather device 700.
- the fastening member 222C presses each electromagnetic steel plate 225 to the inner wall surface of the casing 600, and the surface pressure between the electromagnetic steel plates 225 around the fastening member 222C is higher than the surface pressure between the electromagnetic steel plates 225 in other regions. It is high.
- the breather apparatus 700 is provided on the outer side in the radial direction while being adjacent to a portion of the outer peripheral surface of the stator core 222A located on the seat portion 227 side with respect to the central portion P1 between the seat portions 227 in the circumferential direction.
- stator core 222A a portion adjacent to the breather device 700 and located radially inward has a high surface pressure between the electromagnetic steel plates 225, and a gap between the electromagnetic steel plates 225 is narrow.
- FIG. 5 is a cross-sectional view showing a modified example of the mounting position of the breather device 700.
- the breather device 700 is adjacent to a portion of the outer peripheral surface of the stator coil 222 ⁇ / b> B located on the side of the circumferential central portion P ⁇ b> 1 between the seat portions 227, and more radially than the circumferential central portion P ⁇ b> 1. It is provided on the outer side.
- surroundings is wider than the gap
- the breather device 700 is provided in a portion that is adjacent to the circumferential central portion P1 and that is located radially outward from the circumferential central portion P1. For this reason, the air in the storage chamber 610 reaches the breather device 700 through a portion where the gap between the electromagnetic steel plates 225 is wide in the stator core 222A. Thus, since the air exhausted from the breather apparatus 700 passes through a region where the gap between the electromagnetic steel plates 225 is wide, the air flow resistance until reaching the breather apparatus 700 from the housing chamber 610 is kept low. .
- the air in the storage chamber 610 can be exhausted from the breather device 700 to the outside, and the pressure in the storage chamber 610 can be reduced in a short time. It can match or approximate the external pressure.
- the breather device 700 is adjacent to the circumferential central portion P1 and is located radially outward from the circumferential central portion P1. It is not limited to the above position.
- the breather device 700 is disposed on the outer peripheral surface of the stator core 222A located between the seat portions 227, adjacent to the portion closer to the circumferential central portion P1 than the seat portion 227, and radially outward from the portion. You may arrange.
- oil is supplied to the bearing to ensure lubrication of the bearing, or oil is sprayed to the coil end to cool the coil end. Has accumulated oil.
- the breather device 700 is provided above the rotation center line O, and the level of oil stored in the bottom of the storage chamber 610 is suppressed from reaching above the breather device 700.
- the oil collected at the bottom of the storage chamber 610 does not reach the breather device 700 through the gap between the electromagnetic steel plates 225, and the oil collected at the bottom of the storage chamber 610 is discharged from the breather device 700 to the outside. Being suppressed.
- the breather device 700 includes the concave portion formed on the inner peripheral surface of the casing 600 and the valve body capable of switching the communication state inside and outside the concave portion. And the opening part of the recessed part opened in the storage chamber 610 is obstruct
- the configuration of the breather apparatus 700 itself is simple, and the volume occupied by the breather apparatus 700 itself is also kept small. For this reason, an increase in the volume of the driving device 200 due to the provision of the breather device 700 is suppressed.
- stator core 222A of motor generator MG1 is configured by laminating annular electromagnetic steel plates, other configurations may be employed as the structure of stator core 222A.
- stator core 222A is composed of a split stator core arranged in a ring shape in the circumferential direction and a fixing ring provided on the outer periphery of the split stator core.
- each divided stator core is formed by laminating a plurality of electromagnetic steel plates and binding the electromagnetic steel plates.
- a method for bundling a plurality of electromagnetic steel sheets for example, a method in which the magnetic steel sheets are bound by forming a protrusion and a dent in each electromagnetic steel sheet and inserting the protrusion into the recess of the adjacent electromagnetic steel sheets is adopted.
- it is a bundling method called “caulking”.
- the fixing ring is shrink-fitted or press-fitted to the outer peripheral side of the plurality of divided stator cores arranged in an annular shape. This fixing ring presses each divided stator core toward the radially inner side.
- a through hole is formed in a portion of the fixing ring adjacent to the breather device 700 and positioned radially inward with respect to the breather device 700.
- the present invention can be applied to a breather device and a drive device, and is suitable for a breather device and a drive device that suppress the blowing of oil and oil mist.
Abstract
Description
Claims (8)
- 回転電機(MG2)を収容する収容ケース(600)に設けられ、前記収容ケース内の内圧を調整するブリーザ装置(700)であって、
前記回転電機は、複数の鋼板(225)を積層させることによって形成されたステータコア(222A)を含み、
前記鋼板間の隙間を介して前記収容ケース内と連通する、ブリーザ装置。 - 前記収容ケースのうち、前記ステータコアの外周面と隣り合うと共に、前記ステータコアより径方向外方側に設けられた、請求の範囲第1項に記載のブリーザ装置。
- 前記ブリーザ装置は、前記収容ケースのうち、前記ステータコアの外周面および前記収容ケースによって規定されたブリーザ室(701)と、前記ブリーザ室および外部との接続状態を切り替える弁体(703)とを含み、
前記収容ケースの内周面のうち前記ブリーザ室の周囲に位置する部分と、前記ステータコアの外周面とを密着させた、請求の範囲第1項に記載のブリーザ装置。 - 前記回転電機は、前記ステータコア内に配置されると共に、回転中心線(O)を中心に回転可能に設けられたロータ(221)を含み、
前記ブリーザ装置は、前記回転中心線よりも上方に配置された、請求の範囲第1項に記載のブリーザ装置。 - 前記ステータコアは、該ステータコアの外周面から径方向外方に向けて張り出すように形成され、前記ステータコアの周方向に間隔をあけて設けられた複数の座部(227)を含み、
前記回転電機は、前記座部に形成された貫通孔(226)に挿入され、前記ステータコアを前記収容ケースに固定する固定部材(222C)を含み、
前記ステータコアの外周面のうち前記座部間に位置する部分と、前記収容ケースの内周面とが互いに密着し、
前記ステータコアの外周面のうち前記座部間に位置する部分と隣り合うと共に、径方向外方側に位置する、請求の範囲第1項に記載のブリーザ装置。 - 前記ステータコアの外周面のうち、前記座部よりも前記座部間の周方向中央部(P1)に近接する部分または前記周方向中央部に位置する部分と隣り合うと共に、径方向外方側に位置する、請求の範囲第5項に記載のブリーザ装置。
- 前記ステータコアの外周面のうち前記座部間の周方向中央部よりも前記座部に近接する部分と隣り合うと共に、径方向外方側に位置する、請求の範囲第5項に記載のブリーザ装置。
- 前記回転電機と、前記収容ケースと、請求の範囲第1項に記載のブリーザ装置とを備えた、駆動装置。
Priority Applications (3)
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PCT/JP2008/071216 WO2010058478A1 (ja) | 2008-11-21 | 2008-11-21 | ブリーザ装置および駆動装置 |
US13/130,443 US20110221294A1 (en) | 2008-11-21 | 2008-11-21 | Breather device and drive device |
JP2010539095A JP5177232B2 (ja) | 2008-11-21 | 2008-11-21 | ブリーザ装置および駆動装置 |
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PCT/JP2008/071216 WO2010058478A1 (ja) | 2008-11-21 | 2008-11-21 | ブリーザ装置および駆動装置 |
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WO2010058478A1 true WO2010058478A1 (ja) | 2010-05-27 |
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PCT/JP2008/071216 WO2010058478A1 (ja) | 2008-11-21 | 2008-11-21 | ブリーザ装置および駆動装置 |
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US (1) | US20110221294A1 (ja) |
JP (1) | JP5177232B2 (ja) |
WO (1) | WO2010058478A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3045237A1 (fr) * | 2015-12-15 | 2017-06-16 | Airbus Operations Sas | Generateur electrique d'aeronef comprenant un dispositif d'aeration a ouverture controlee |
WO2020179216A1 (ja) * | 2019-03-06 | 2020-09-10 | 日本電産株式会社 | モータユニット |
JP2020174479A (ja) * | 2019-04-11 | 2020-10-22 | 日本電産株式会社 | 駆動装置、および駆動装置の製造方法 |
Families Citing this family (4)
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JP5786642B2 (ja) * | 2011-10-26 | 2015-09-30 | トヨタ自動車株式会社 | ステータ固定構造 |
CN104662775B (zh) | 2012-09-18 | 2018-07-10 | 株式会社明电舍 | 定子的固定构造 |
JP6364442B2 (ja) * | 2016-05-26 | 2018-07-25 | 本田技研工業株式会社 | 回転電機の圧力調整装置 |
US10122240B2 (en) * | 2016-10-27 | 2018-11-06 | Jie Neng Power Industry Co., Ltd. | Electricity generation device with low power consumption |
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- 2008-11-21 WO PCT/JP2008/071216 patent/WO2010058478A1/ja active Application Filing
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FR3045237A1 (fr) * | 2015-12-15 | 2017-06-16 | Airbus Operations Sas | Generateur electrique d'aeronef comprenant un dispositif d'aeration a ouverture controlee |
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JP2020174479A (ja) * | 2019-04-11 | 2020-10-22 | 日本電産株式会社 | 駆動装置、および駆動装置の製造方法 |
JP7275431B2 (ja) | 2019-04-11 | 2023-05-18 | ニデック株式会社 | 駆動装置、および駆動装置の製造方法 |
Also Published As
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JPWO2010058478A1 (ja) | 2012-04-12 |
US20110221294A1 (en) | 2011-09-15 |
JP5177232B2 (ja) | 2013-04-03 |
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