WO2018212127A1 - Inverter integrated rotating electrical machine - Google Patents
Inverter integrated rotating electrical machine Download PDFInfo
- Publication number
- WO2018212127A1 WO2018212127A1 PCT/JP2018/018523 JP2018018523W WO2018212127A1 WO 2018212127 A1 WO2018212127 A1 WO 2018212127A1 JP 2018018523 W JP2018018523 W JP 2018018523W WO 2018212127 A1 WO2018212127 A1 WO 2018212127A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inverter
- rotating shaft
- insertion hole
- end surface
- axial direction
- Prior art date
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Classifications
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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
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
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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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Definitions
- the present invention relates to an inverter-integrated rotating electrical machine.
- Patent Document 1 discloses an inverter-integrated rotating electrical machine.
- An inverter-integrated rotating electrical machine includes a cylindrical housing that rotatably supports a rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator that is fixed to the inner peripheral surface of the housing, and an inverter case that houses the inverter And.
- the inverter-integrated rotating electrical machine is configured by connecting a housing and an inverter case in the axial direction of the rotating shaft. Motor wiring is drawn from the stator coil. The motor wiring is electrically connected to the inverter terminal of the inverter. And the electric power from an inverter is supplied to the coil of a stator via an inverter terminal and motor wiring, and a rotor and a rotating shaft rotate integrally.
- An inverter-integrated electric rotating machine equipped with a heat sink is known.
- the heat sink is attached to the inverter case between the housing and the inverter case in the axial direction of the rotating shaft, and is thermally coupled to the inverter.
- the inverter-integrated rotating electrical machine includes a cooling fan and a rectifying member.
- the cooling fan is fixed to the rotating shaft between the heat sink and the housing in the axial direction of the rotating shaft, and can rotate as the rotating shaft rotates to suck air.
- the rectifying member is disposed between the heat sink and the cooling fan in the axial direction of the rotating shaft, and has a rectifying hole for flowing air from the heat sink to the cooling fan.
- the housing and the inverter case require a seal structure for sealing the inside.
- the seal structure is complicated, the assembly of the inverter-integrated rotating electrical machine becomes complicated.
- An object of the present invention is to provide an inverter-integrated dynamoelectric machine that can simplify the seal structure for sealing the insides of the housing and the inverter case, and can be easily assembled.
- An inverter-integrated rotating electrical machine that achieves the above object includes a cylindrical housing that rotatably supports a rotating shaft, a rotor that rotates integrally with the rotating shaft, and a stator that is fixed to an inner peripheral surface of the housing.
- An inverter case coupled to the housing in the axial direction of the rotating shaft and accommodating an inverter; a motor wiring configured to be drawn from a coil of the stator and electrically connected to the inverter;
- a heat sink provided in the inverter case between the housing in the axial direction of the rotating shaft and the inverter case and configured to be thermally coupled to the inverter; and the heat sink in the axial direction of the rotating shaft; It is fixed to the rotating shaft between the housing and rotates with the rotation of the rotating shaft.
- the rectifying member includes a third insertion hole through which the motor wiring is inserted in the axial direction of the rotation shaft, a first contact surface that contacts the first end surface around the third insertion hole, and the third A second contact surface that contacts the second end surface around the insertion hole.
- the inverter-integrated rotating electrical machine includes a first seal member provided between the first end surface and the first contact surface, and a second seal provided between the second end surface and the second contact surface. And a member.
- the sectional side view which shows the inverter integrated rotary electric machine in one Embodiment.
- the disassembled perspective view of an inverter integrated rotating electrical machine The disassembled perspective view of an inverter integrated rotating electrical machine.
- FIG. The partial expanded sectional view of an inverter integrated rotating electrical machine.
- the partial expanded sectional view of the inverter integrated rotating electrical machine in another embodiment.
- the housing 11 includes a bottomed cylindrical first motor bracket 12 and a bottomed cylindrical second motor bracket 13.
- the first motor bracket 12 and the second motor bracket 13 are made of aluminum. Therefore, the housing 11 is made of metal.
- the first motor bracket 12 has a disc-shaped bottom portion 12a and a cylindrical tube portion 12b continuous to the outer peripheral edge of the bottom portion 12a.
- a through hole 12h is formed in the bottom portion 12a.
- a plurality of attachment portions 12 c are provided on the outer peripheral surface of the cylindrical portion 12 b so as to protrude at predetermined intervals in the circumferential direction of the cylindrical portion 12 b.
- the second motor bracket 13 has a disk-shaped bottom portion 13a and a cylindrical tube portion 13b continuous to the outer peripheral edge of the bottom portion 13a.
- a through hole 13h is formed in the bottom portion 13a.
- a plurality of attachment portions 13 c are provided on the outer peripheral surface of the cylindrical portion 13 b so as to protrude at predetermined intervals in the circumferential direction of the cylindrical portion 13 b.
- the second motor bracket 13 has a plurality of mounting legs 13k used for mounting the inverter case 21 to the second motor bracket 13.
- the first motor bracket 12 and the second motor bracket 13 are arranged so that the open ends of the respective cylinder portions 12b face each other in the axial direction of the respective cylinder portions 12b and 13b. Further, in the first motor bracket 12 and the second motor bracket 13, the mounting portions 12c of the first motor bracket 12 face each other in the axial direction of the mounting portions 13c of the second motor bracket 13 and the cylindrical portions 12b and 13b.
- Each attachment portion 12c of the first motor bracket 12 and each attachment portion 13c of the second motor bracket 13 are fastened by a screw 14a and a nut (not shown) screwed to the screw 14a.
- Each screw 14 a passes through the attachment portion 12 c of the first motor bracket 12 and is screwed into each attachment portion 13 c of the second motor bracket 13. Thereby, the 1st motor bracket 12 and the 2nd motor bracket 13 are connected in the state where a predetermined interval was put in the direction of an axis of each cylinder part 12b and 13b.
- the inverter-integrated dynamoelectric machine 10 includes a rotor 17 and a stator 18.
- the rotor 17 rotates integrally with the rotating shaft 15.
- the rotor 17 has a rotor core 17a configured by laminating a plurality of electromagnetic steel plates.
- the rotor 17 includes a plurality of rotor bars 17b, a first end ring 17c, and a second end ring 17d.
- the plurality of rotor bars 17b penetrate the rotor core 17a in the axial direction of the rotary shaft 15 with a space in the circumferential direction of the rotor core 17a.
- the first end ring 17c is disposed on the first end face of the rotor core 17a.
- the second end ring 17d is disposed on the second end face of the rotor core 17a.
- the first ends of the plurality of rotor bars 17b are connected to the first end ring 17c, and the second ends of the plurality of rotor bars 17b are connected to the second end ring 17d.
- the stator 18 is fixed to the inner peripheral surface of the housing 11 (the inner peripheral surface 12g of the cylindrical portion 12b and the inner peripheral surface 13g of the cylindrical portion 13b).
- the stator 18 has a cylindrical stator core 18a configured by laminating a plurality of electromagnetic steel plates.
- the first axial end portion of the stator core 18a on the outer peripheral surface of the stator core 18a is press-fitted into the open end portion of the inner peripheral surface 12g of the cylindrical portion 12b. Thereby, the axial direction 1st edge part of the stator core 18a is being fixed to the internal peripheral surface 12g of the cylinder part 12b.
- the second axial end portion of the stator core 18a on the outer peripheral surface of the stator core 18a is press-fitted into the open end portion of the inner peripheral surface 13g of the cylindrical portion 13b.
- the second axial end portion of the stator core 18a is fixed to the inner peripheral surface 13g of the cylindrical portion 13b.
- the outer peripheral surface located between both cylinder parts 12b and 13b in the axial direction of the stator core 18a is not covered with the housing 11 but exposed to the outside.
- the stator 18 has a coil 18b.
- the coil 18b is wound around a tooth (not shown) of the stator core 18a.
- An annular first coil end 181b that is a part of the coil 18b protrudes from the first end surface 181a in the axial direction of the stator core 18a.
- An annular second coil end 182b that is a part of the coil 18b protrudes from the second end surface 182a in the axial direction of the stator core 18a.
- the first coil end 181b is covered with the cylindrical portion 12b of the first motor bracket 12.
- the second coil end 182 b is covered with the cylindrical portion 13 b of the second motor bracket 13. From the second coil end 182b, three motor wires 19 are drawn out corresponding to the U-phase, V-phase, and W-phase coils 18b. Therefore, the motor wiring 19 is drawn from the coil 18 b of the stator 18.
- the housing 11, the rectifying member 50, and the inverter case 21 are arranged in this order in the axial direction of the rotary shaft 15.
- the second motor bracket 13 is disposed at a position closer to the rectifying member 50 than the first motor bracket 12. That is, the second motor bracket 13 is disposed between the first motor bracket 12 and the rectifying member 50.
- the second motor bracket 13 has a bulging wall 13d that bulges outward from the outer peripheral surface of the cylindrical portion 13b in the radial direction of the rotary shaft 15. Both axial sides of the rotating shaft 15 in the space inside the bulging wall 13d are closed by two closing walls 13e and 13f that make a pair. As shown in FIGS. 1 and 2, the blocking wall 13 f is located on the side opposite to the first motor bracket 12. Three first insertion holes 11h are formed in the blocking wall 13f. The motor wiring 19 is inserted through the first insertion holes 11h in the axial direction of the rotary shaft 15.
- the outer end surface of the blocking wall 13f is a first end surface 11a in which a first insertion hole 11h is formed. Therefore, the housing 11 has the first end surface 11 a, and the first end surface 11 a has three first insertion holes 11 h through which the motor wiring 19 is inserted in the axial direction of the rotating shaft 15.
- the first end face 11a has a flat surface shape.
- each motor wiring 19 extends from the outer peripheral portion of the second coil end 182 b toward the bulging wall 13 d outward in the radial direction of the rotating shaft 15.
- Each motor wiring 19 is bent toward the side opposite to the second end face 182a of the stator core 18a inside the bulging wall 13d, and then extends in the axial direction of the rotary shaft 15 to each first insertion hole 11h. Is inserted.
- a cylindrical insulating member 11g made of resin is provided on the inner surface of the bulging wall 13d.
- the three motor wires 19 pass through the inside of the insulating member 11g.
- the insulating member 11g insulates the second motor bracket 13 from the motor wires 19.
- the inverter case 21 has a square cylindrical case body 22. As shown in FIG. 1, one surface of the case body 22 opposite to the rectifying member 50 is open. A mounting hole 22 a to which the heat sink 30 is attached is formed in a part of the case body 22 that faces the rectifying member 50.
- the inside of the case body 22 is divided into a first space 221 communicating with the mounting hole 22a and three second insertion holes 24h by a flat partition wall 22c provided on the inner surface of the case body 22. It is partitioned into a second space 222 that communicates.
- the inverter case 21 has a first cover member 23 a and a second cover member 23 b that close the opening of the case body 22.
- the first cover member 23 a and the second cover member 23 b are attached to the case main body 22 by a plurality of screws 23 d and 23 e through a gasket 23 c provided at the opening edge of the case main body 22.
- the boundary between the opening edge of the case body 22 and the first cover member 23a and the second cover member 23b is sealed by a gasket 23c.
- the first cover member 23 a closes the opening of the first space 221 in the case body 22.
- the second cover member 23 b closes the opening of the second space 222 in the case body 22.
- the heat sink 30 includes a flat base 31 and fins 32 provided on one surface 31 a of the base 31.
- the fins 32 are corrugated fins formed by folding a thin plate in a zigzag manner.
- the heat sink 30 is attached to the case body 22 with the base 31 fitted in the attachment hole 22a. Therefore, the heat sink 30 is provided in the inverter case 21 between the second motor bracket 13 and the inverter case 21 in the axial direction of the rotating shaft 15.
- the inverter 20 is attached to a surface 31 b opposite to the fin 32 in the base 31 of the heat sink 30. Therefore, the heat sink 30 is thermally coupled to the inverter 20.
- the inverter 20 is disposed in the first space 221.
- the inverter 20 has a substrate 20a and a plurality of switching elements 20b mounted on the substrate 20a.
- the plurality of switching elements 20b constitute an upper arm and a lower arm of each phase corresponding to the U-phase, V-phase, and W-phase coils 18b, respectively.
- the inverter 20 converts direct current from a direct current power source such as an in-vehicle battery into alternating current by the switching operation of the switching element 20b.
- heat radiation fins 26 are provided at portions opposite to the respective second insertion holes 24 h with respect to the heat sink 30 in the case body 22.
- the heat radiating fins 26 are corrugated fins formed by folding a thin plate in a zigzag manner.
- the radiating fins 26 are arranged at positions that overlap the fins 32 of the heat sink 30 in the radial direction of the rotating shaft 15.
- the cooling fan 40 is fixed to the second end of the rotating shaft 15 between the heat sink 30 and the housing 11 (second motor bracket 13) in the axial direction of the rotating shaft 15. .
- the cooling fan 40 can rotate with the rotation of the rotating shaft 15 to suck air.
- a first seal member 61 is provided between the first end surface 11a and the first contact surface 55.
- the first seal member 61 is a rubber gasket having a long rectangular frame shape.
- the first seal member 61 is formed with three frame-shaped insertion portions 61a through which the three motor wires 19 are inserted. Each insertion portion 61 a is disposed around each first insertion hole 11 h in the first end surface 11 a and around each third insertion hole 54 h in the first contact surface 55.
- the first contact surface 55 is formed with a first seal member holding groove 55a for holding the first seal member 61.
- the first seal member holding groove 55a is formed on the first contact surface 55 so as to surround each third insertion hole 54h.
- the first seal member 61 is held in the first seal member holding groove 55a by being mounted in the first seal member holding groove 55a.
- the first seal member 61 is in close contact with the first seal member holding groove 55a.
- the first end surface 11a and the first contact surface 55 come into contact with each other, whereby the first seal member 61 is crushed between the first end surface 11a and the first seal member holding groove 55a. It adheres to 11a.
- the first seal member 61 suppresses entry of foreign matters such as water into the first insertion holes 11h via the boundary between the first end surface 11a and the first contact surface 55.
- the first seal member 61 suppresses entry of foreign matters such as water into the third insertion holes 54 h via the boundary between the first end surface 11 a and the first contact surface 55.
- the end surface of the step 54b of each insertion tube 54 is a second contact surface 56 that contacts the second end surface 24 around each third insertion hole 54h. Therefore, the rectifying member 50 has the second contact surface 56 that contacts the second end surface 24 around each third insertion hole 54h. Each second contact surface 56 faces the second end surface 24 in the axial direction of the rotation shaft 15.
- the exhaust guide cylinder portion 53 of the rectifying member 50 covers the outer peripheral surface of the cylinder portion 13 b of the second motor bracket 13.
- An exhaust passage 58 is formed between the inner peripheral surface of the exhaust guide tube portion 53 and the outer peripheral surface of the tube portion 13 b of the second motor bracket 13. The exhaust passage 58 communicates with the plurality of rectifying holes 51.
- each motor wiring 19 opposite to the second coil end 182b passes through the inside of the insulating member 11g, each first insertion hole 11h, and each third insertion hole 54h. It protrudes into the second space 222 of the inverter case 21 and is inserted into the connection hole 25 a of each inverter terminal 25.
- the small-diameter cylinder 54c and the tapered cylinder 54d of each insertion cylinder 54 forming each third insertion hole 54h are inserted into each second insertion hole 24h. That is, it can be said that each motor wiring 19 passing through each third insertion hole 54h passes through each second insertion hole 24h.
- the rectifying member 50 and the inverter case 21 are sequentially assembled to the housing 11 in the axial direction of the rotating shaft 15, and at the same time, the boundary between the housing 11 and the inverter case 21. Is sealed through the first seal member 61, the rectifying member 50, and the second seal member 62. Therefore, even in the inverter-integrated rotating electrical machine 10 having the configuration in which the rectifying member 50 is disposed between the heat sink 30 and the cooling fan 40 in the axial direction of the rotating shaft 15, the interiors of the housing 11 and the inverter case 21 are respectively included.
- the seal structure for sealing can be simplified, and the assembly of the inverter-integrated dynamoelectric machine 10 can be facilitated.
- a second seal member holding groove 56a for holding the second seal member 62 is formed on the second contact surface 56. According to this, the rectifying member 50 and the inverter case 21 are sequentially assembled to the housing 11 in the axial direction of the rotary shaft 15 with the second seal member 62 held in the second seal member holding groove 56a. Therefore, the assembly of the inverter-integrated dynamoelectric machine 10 can be further facilitated.
- each third insertion hole 54h is a guide surface 59 that guides each motor wiring 19 toward the connection hole 25a of each inverter terminal 25. According to this, when the rectifying member 50 and the inverter case 21 are sequentially assembled to the housing 11 in the axial direction of the rotary shaft 15, each motor wiring 19 is connected to each inverter terminal 25 connection hole by each guide surface 59. Since it becomes easy to guide to 25a, the assembly
- the guide surface 59 is the inner peripheral surface 54i of the third insertion hole 54h. According to this, while each motor wiring 19 extending to the outside of the housing 11 from each first insertion hole 11h is guided to the connection hole 25a of each inverter terminal 25 by the inner peripheral surface 54i of each third insertion hole 54h.
- the rectifying member 50 and the inverter case 21 can be sequentially assembled to the housing 11 in the axial direction of the rotary shaft 15. Therefore, the assembly of the inverter-integrated dynamoelectric machine 10 can be further facilitated.
- each motor wiring 19 in each nut 25b and each inverter terminal 25 are fastened in the axial direction of the rotary shaft 15 by each nut 25b. For this reason, compared with the structure by which the edge part of each motor wiring 19 and each inverter terminal 25 are made
- the insertion cylinder 54 may not be provided in the rectifying member 50, and the insertion cylinder 13 p that protrudes toward the rectification member 50 may be formed in the second motor bracket 13.
- a third insertion hole 54 h is formed through the body 52 of the rectifying member 50.
- the insertion cylinder 13p extends toward the third insertion hole 54h.
- the second motor bracket 13 has an insulating member 11g provided inside the insertion tube 13p.
- the inner side of the insulating member 11g functions as the first insertion hole 11h.
- the inner peripheral surface 11 i of the first insertion hole 11 h functions as the guide surface 59, and the guide surface 59 may taper as it approaches the connection hole 25 a of the inverter terminal 25.
- the guide surface 59 may be formed by the inner peripheral surface 11i of the first insertion hole 11h and the inner peripheral surface 54i of the third insertion hole 54h.
- at least one of the inner peripheral surface 11i of the first insertion hole 11h and the inner peripheral surface 54i of the third insertion hole 54h is a guide surface that guides the motor wiring 19 toward the connection hole 25a of the inverter terminal 25. Just do it.
- the rectifying member 50 may have a cylindrical insertion portion 50A that is inserted into the first insertion hole 11h. According to this, the insulation between the portion of the motor wiring 19 positioned inside the first insertion hole 11h and the second motor bracket 13 can be ensured by the insertion portion 50A. Therefore, it is not necessary to separately provide an insulating member that secures insulation between the portion of the motor wiring 19 positioned inside the first insertion hole 11h and the second motor bracket 13 inside the second motor bracket 13, and the inverter The configuration of the integrated rotary electric machine 10 can be simplified.
- the second seal member holding groove 56 a may not be formed on the second contact surface 56 but may be formed on the second end surface 24. In the embodiment, the second seal member holding groove 56 a may not be formed on the second contact surface 56.
- the rectifying member 50 is not provided with the insertion tube 54, and may be, for example, the rectifying member 50 formed by penetrating the third insertion hole 54h in the main body portion 52.
- the third insertion hole The inner peripheral surface 54 i of 54 h may not function as the guide surface 59.
- the guide surface 59 may extend linearly in the axial direction of the rotating shaft 15, for example.
- the inverter case 21 in which the inside of the case main body 22 is not partitioned into the first space 221 and the second space 222 by the partition wall 22c may be used.
- the shape of the rectifying hole 51 is not particularly limited, and may be a fan-shaped triangle or a circle. ⁇ In the embodiment, even if the three first insertion holes 11h are not formed in the blocking wall 13f, only one first insertion hole 11h having a size through which the three motor wires 19 can be inserted is formed. Good.
- the three straight insertion holes 54h may not be formed in the rectifying member 50, and only one third through hole having a size that allows the three motor wires 19 to be inserted may be formed. .
- each motor wiring 19 and each inverter terminal 25 may be fastened in the radial direction of the rotating shaft 15.
- a terminal block for connecting the motor wiring 19 to the inverter 20 is provided on the outer peripheral surface of the inverter case 21, and the inverter terminal installed on the terminal block and the motor wiring 19 are fastened in the radial direction of the rotary shaft 15. It may be a configuration.
- the inverter case 21 and the heat sink 30 may be integrally formed by, for example, aluminum die casting.
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- Power Engineering (AREA)
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- Motor Or Generator Cooling System (AREA)
Abstract
This inverter integrated rotating electrical machine is provided with a housing, a rotor, a stator, an inverter case, a motor wiring, a heat sink, a cooling fan, and a rectifying member. The housing has a first end surface, and the first end surface has a first insertion hole into which the motor wiring is inserted in the axis direction of the rotating axis. The inverter case has a second end surface, and the second end surface has a second insertion hole into which the motor wiring is inserted in the axis direction of the rotating axis. The rectifying member has: a third insertion hole into which the motor wiring is inserted in the axis direction of the rotating axis; a first contact surface that comes into contact with, around the third insertion hole, the first end surface; and a second contact surface that comes into contact with, around the third insertion hole, the second end surface. The inverter integrated rotating electrical machine is provided with: a first seal member that is provided between the first end surface and the first contact surface; and a second seal member that is provided between the second end surface and the second contact surface.
Description
本発明は、インバータ一体型回転電機に関する。
The present invention relates to an inverter-integrated rotating electrical machine.
例えば特許文献1にインバータ一体型回転電機が開示されている。インバータ一体型回転電機は、回転軸を回転可能に支持する筒状のハウジングと、回転軸と一体的に回転するロータと、ハウジングの内周面に固定されるステータと、インバータを収容するインバータケースと、を備えている。そして、インバータ一体型回転電機は、ハウジングとインバータケースとが回転軸の軸方向に連結されることにより構成されている。ステータのコイルからモータ配線が引き出されている。モータ配線は、インバータのインバータ端子と電気的に接続されている。そして、インバータからの電力がインバータ端子及びモータ配線を介してステータのコイルに供給されることにより、ロータ及び回転軸が一体回転する。
For example, Patent Document 1 discloses an inverter-integrated rotating electrical machine. An inverter-integrated rotating electrical machine includes a cylindrical housing that rotatably supports a rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator that is fixed to the inner peripheral surface of the housing, and an inverter case that houses the inverter And. The inverter-integrated rotating electrical machine is configured by connecting a housing and an inverter case in the axial direction of the rotating shaft. Motor wiring is drawn from the stator coil. The motor wiring is electrically connected to the inverter terminal of the inverter. And the electric power from an inverter is supplied to the coil of a stator via an inverter terminal and motor wiring, and a rotor and a rotating shaft rotate integrally.
ヒートシンクを備えたインバータ一体型回転電機が知られている。ヒートシンクは、回転軸の軸方向におけるハウジングとインバータケースとの間でインバータケースに取り付けられ、インバータと熱的に結合される。さらに、上記インバータ一体型回転電機は、冷却ファンと整流部材とを備えている。冷却ファンは、回転軸の軸方向におけるヒートシンクとハウジングとの間で回転軸に固定され、回転軸の回転に伴い回転して空気を吸気可能である。整流部材は、回転軸の軸方向におけるヒートシンクと冷却ファンとの間に配置され、ヒートシンクから冷却ファンへ空気を流す整流孔を有する。そして、冷却ファンの回転に伴い吸気された空気は、ヒートシンクから整流部材の整流孔を介して冷却ファンに向かって流れる。この空気によって、インバータで発生した熱がヒートシンクを介して外部へ放出され、インバータが冷却される。
An inverter-integrated electric rotating machine equipped with a heat sink is known. The heat sink is attached to the inverter case between the housing and the inverter case in the axial direction of the rotating shaft, and is thermally coupled to the inverter. Furthermore, the inverter-integrated rotating electrical machine includes a cooling fan and a rectifying member. The cooling fan is fixed to the rotating shaft between the heat sink and the housing in the axial direction of the rotating shaft, and can rotate as the rotating shaft rotates to suck air. The rectifying member is disposed between the heat sink and the cooling fan in the axial direction of the rotating shaft, and has a rectifying hole for flowing air from the heat sink to the cooling fan. Then, the air taken in with the rotation of the cooling fan flows from the heat sink toward the cooling fan through the rectifying hole of the rectifying member. With this air, heat generated in the inverter is released to the outside through the heat sink, and the inverter is cooled.
このようなインバータ一体型回転電機においては、ハウジングとインバータケースはそれぞれの内部をシールするためのシール構造を必要とする。しかしながら、シール構造が複雑化すると、インバータ一体型回転電機の組み付けが煩雑なものとなる。
In such an inverter-integrated rotating electrical machine, the housing and the inverter case require a seal structure for sealing the inside. However, when the seal structure is complicated, the assembly of the inverter-integrated rotating electrical machine becomes complicated.
本発明の目的は、ハウジングとインバータケースそれぞれの内部をシールするためのシール構造を簡素化し、組み付けを容易なものとすることができるインバータ一体型回転電機を提供することにある。
An object of the present invention is to provide an inverter-integrated dynamoelectric machine that can simplify the seal structure for sealing the insides of the housing and the inverter case, and can be easily assembled.
上記目的を達成するインバータ一体型回転電機は、回転軸を回転可能に支持する筒状のハウジングと、前記回転軸と一体的に回転するロータと、前記ハウジングの内周面に固定されるステータと、前記回転軸の軸方向で前記ハウジングに連結されるとともにインバータを収容するインバータケースと、前記ステータのコイルから引き出されるとともに前記インバータに電気的に接続されるように構成されたモータ配線と、前記回転軸の軸方向における前記ハウジングと前記インバータケースとの間で前記インバータケースに設けられ、前記インバータと熱的に結合されるように構成されたヒートシンクと、前記回転軸の軸方向における前記ヒートシンクと前記ハウジングとの間で前記回転軸に固定され、前記回転軸の回転に伴い回転して空気を吸気可能な冷却ファンと、前記回転軸の軸方向における前記ヒートシンクと前記冷却ファンとの間に配置され、前記ヒートシンクと前記冷却ファンとの間で空気を整流する整流孔を有する整流部材と、を備える。前記ハウジングは、第1端面を有し、該第1端面は、前記回転軸の軸方向で前記モータ配線が挿通される第1挿通孔を有する。前記インバータケースは、第2端面を有し、該第2端面は、前記回転軸の軸方向で前記モータ配線が挿通される第2挿通孔を有する。前記整流部材は、前記回転軸の軸方向で前記モータ配線が挿通される第3挿通孔と、前記第3挿通孔の周囲で前記第1端面に当接する第1当接面と、前記第3挿通孔の周囲で前記第2端面に当接する第2当接面と、を有する。インバータ一体型回転電機は、前記第1端面と前記第1当接面との間に設けられる第1シール部材と、前記第2端面と前記第2当接面との間に設けられる第2シール部材と、を備えている。
An inverter-integrated rotating electrical machine that achieves the above object includes a cylindrical housing that rotatably supports a rotating shaft, a rotor that rotates integrally with the rotating shaft, and a stator that is fixed to an inner peripheral surface of the housing. An inverter case coupled to the housing in the axial direction of the rotating shaft and accommodating an inverter; a motor wiring configured to be drawn from a coil of the stator and electrically connected to the inverter; A heat sink provided in the inverter case between the housing in the axial direction of the rotating shaft and the inverter case and configured to be thermally coupled to the inverter; and the heat sink in the axial direction of the rotating shaft; It is fixed to the rotating shaft between the housing and rotates with the rotation of the rotating shaft. A cooling fan capable of sucking air, a rectifying member disposed between the heat sink and the cooling fan in the axial direction of the rotating shaft, and having a rectifying hole for rectifying air between the heat sink and the cooling fan; Is provided. The housing has a first end surface, and the first end surface has a first insertion hole through which the motor wiring is inserted in the axial direction of the rotating shaft. The inverter case has a second end surface, and the second end surface has a second insertion hole through which the motor wiring is inserted in the axial direction of the rotating shaft. The rectifying member includes a third insertion hole through which the motor wiring is inserted in the axial direction of the rotation shaft, a first contact surface that contacts the first end surface around the third insertion hole, and the third A second contact surface that contacts the second end surface around the insertion hole. The inverter-integrated rotating electrical machine includes a first seal member provided between the first end surface and the first contact surface, and a second seal provided between the second end surface and the second contact surface. And a member.
以下、インバータ一体型回転電機を具体化した一実施形態を図1~図5にしたがって説明する。なお、本実施形態のインバータ一体型回転電機は、車両に搭載されている。
図1及び図2に示すように、インバータ一体型回転電機10は、ハウジング11と、インバータ20を収容するインバータケース21と、ヒートシンク30と、冷却ファン40と、整流部材50と、を備えている。 Hereinafter, an embodiment in which an inverter-integrated rotating electrical machine is embodied will be described with reference to FIGS. Note that the inverter-integrated rotating electrical machine of the present embodiment is mounted on a vehicle.
As shown in FIGS. 1 and 2, the inverter-integrated rotatingelectrical machine 10 includes a housing 11, an inverter case 21 that houses the inverter 20, a heat sink 30, a cooling fan 40, and a rectifying member 50. .
図1及び図2に示すように、インバータ一体型回転電機10は、ハウジング11と、インバータ20を収容するインバータケース21と、ヒートシンク30と、冷却ファン40と、整流部材50と、を備えている。 Hereinafter, an embodiment in which an inverter-integrated rotating electrical machine is embodied will be described with reference to FIGS. Note that the inverter-integrated rotating electrical machine of the present embodiment is mounted on a vehicle.
As shown in FIGS. 1 and 2, the inverter-integrated rotating
ハウジング11は、有底円筒状の第1モータブラケット12と、有底円筒状の第2モータブラケット13とから構成されている。第1モータブラケット12及び第2モータブラケット13は、アルミニウム製である。よって、ハウジング11は金属製である。
The housing 11 includes a bottomed cylindrical first motor bracket 12 and a bottomed cylindrical second motor bracket 13. The first motor bracket 12 and the second motor bracket 13 are made of aluminum. Therefore, the housing 11 is made of metal.
図1に示すように、第1モータブラケット12は、円板状の底部12aと、底部12aの外周縁に連続する円筒状の筒部12bと、を有している。底部12aには、貫通孔12hが形成されている。図2に示すように、筒部12bの外周面には、複数の取付部12cが筒部12bの周方向に所定の間隔を置いてそれぞれ突出するように設けられている。
As shown in FIG. 1, the first motor bracket 12 has a disc-shaped bottom portion 12a and a cylindrical tube portion 12b continuous to the outer peripheral edge of the bottom portion 12a. A through hole 12h is formed in the bottom portion 12a. As shown in FIG. 2, a plurality of attachment portions 12 c are provided on the outer peripheral surface of the cylindrical portion 12 b so as to protrude at predetermined intervals in the circumferential direction of the cylindrical portion 12 b.
図1に示すように、第2モータブラケット13は、円板状の底部13aと、底部13aの外周縁に連続する円筒状の筒部13bと、を有している。底部13aには、貫通孔13hが形成されている。図2に示すように、筒部13bの外周面には、複数の取付部13cが筒部13bの周方向に所定の間隔を置いてそれぞれ突出するように設けられている。さらに、第2モータブラケット13は、インバータケース21を第2モータブラケット13に対して取り付けるために用いられる複数の取付用脚部13kを有している。
As shown in FIG. 1, the second motor bracket 13 has a disk-shaped bottom portion 13a and a cylindrical tube portion 13b continuous to the outer peripheral edge of the bottom portion 13a. A through hole 13h is formed in the bottom portion 13a. As shown in FIG. 2, a plurality of attachment portions 13 c are provided on the outer peripheral surface of the cylindrical portion 13 b so as to protrude at predetermined intervals in the circumferential direction of the cylindrical portion 13 b. Furthermore, the second motor bracket 13 has a plurality of mounting legs 13k used for mounting the inverter case 21 to the second motor bracket 13.
第1モータブラケット12及び第2モータブラケット13は、各筒部12bの開口端が各筒部13bの開口端と各筒部12b,13bの軸方向で互いに向き合うように配置されている。また、第1モータブラケット12及び第2モータブラケット13は、第1モータブラケット12の各取付部12cが第2モータブラケット13の各取付部13cと各筒部12b,13bの軸方向で互いに対向するように配置されている。第1モータブラケット12の各取付部12cと第2モータブラケット13の各取付部13cとは、螺子14aと、螺子14aに螺合された図示しないナットとによって締結されている。各螺子14aは、第1モータブラケット12の取付部12cを貫通して第2モータブラケット13の各取付部13cにねじ込まれている。これにより、第1モータブラケット12と第2モータブラケット13とが各筒部12b,13bの軸方向で所定の間隔を置いた状態で連結されている。
The first motor bracket 12 and the second motor bracket 13 are arranged so that the open ends of the respective cylinder portions 12b face each other in the axial direction of the respective cylinder portions 12b and 13b. Further, in the first motor bracket 12 and the second motor bracket 13, the mounting portions 12c of the first motor bracket 12 face each other in the axial direction of the mounting portions 13c of the second motor bracket 13 and the cylindrical portions 12b and 13b. Are arranged as follows. Each attachment portion 12c of the first motor bracket 12 and each attachment portion 13c of the second motor bracket 13 are fastened by a screw 14a and a nut (not shown) screwed to the screw 14a. Each screw 14 a passes through the attachment portion 12 c of the first motor bracket 12 and is screwed into each attachment portion 13 c of the second motor bracket 13. Thereby, the 1st motor bracket 12 and the 2nd motor bracket 13 are connected in the state where a predetermined interval was put in the direction of an axis of each cylinder part 12b and 13b.
図1に示すように、インバータ一体型回転電機10は、回転軸15を備えている。回転軸15の第1端は、貫通孔12hに挿入されるとともに、ベアリング16aを介して第1モータブラケット12に回転可能に支持されている。回転軸15の第2端は、貫通孔13hに挿入されるとともにベアリング16bを介して第2モータブラケット13に回転可能に支持されている。よって、ハウジング11は、回転軸15を回転可能に支持する。回転軸15の第2端は、貫通孔13hを通過して第2モータブラケット13の外端面よりも突出している。回転軸15の軸線Lが延びる方向、即ち回転軸15の軸方向は、各筒部12b,13bの軸方向に一致している。
As shown in FIG. 1, the inverter-integrated dynamoelectric machine 10 includes a rotating shaft 15. The first end of the rotary shaft 15 is inserted into the through hole 12h and is rotatably supported by the first motor bracket 12 via a bearing 16a. The second end of the rotary shaft 15 is inserted into the through hole 13h and supported rotatably on the second motor bracket 13 via a bearing 16b. Therefore, the housing 11 supports the rotating shaft 15 in a rotatable manner. The second end of the rotating shaft 15 passes through the through hole 13 h and protrudes from the outer end surface of the second motor bracket 13. The direction in which the axis L of the rotating shaft 15 extends, that is, the axial direction of the rotating shaft 15 coincides with the axial directions of the cylindrical portions 12b and 13b.
インバータ一体型回転電機10は、ロータ17及びステータ18を備えている。ロータ17は、回転軸15と一体的に回転する。ロータ17は、複数の電磁鋼板が積層されることにより構成されるロータコア17aを有している。また、ロータ17は、複数のロータバー17b、第1エンドリング17c、及び第2エンドリング17dを有している。複数のロータバー17bは、ロータコア17aの周方向に間隔を置いた状態でロータコア17aを回転軸15の軸方向に貫通している。第1エンドリング17cは、ロータコア17aの第1端面に配置されている。第2エンドリング17dは、ロータコア17aの第2端面に配置されている。複数のロータバー17bの第1端は、第1エンドリング17cに連結されるとともに、複数のロータバー17bの第2端は、第2エンドリング17dに連結されている。
The inverter-integrated dynamoelectric machine 10 includes a rotor 17 and a stator 18. The rotor 17 rotates integrally with the rotating shaft 15. The rotor 17 has a rotor core 17a configured by laminating a plurality of electromagnetic steel plates. Further, the rotor 17 includes a plurality of rotor bars 17b, a first end ring 17c, and a second end ring 17d. The plurality of rotor bars 17b penetrate the rotor core 17a in the axial direction of the rotary shaft 15 with a space in the circumferential direction of the rotor core 17a. The first end ring 17c is disposed on the first end face of the rotor core 17a. The second end ring 17d is disposed on the second end face of the rotor core 17a. The first ends of the plurality of rotor bars 17b are connected to the first end ring 17c, and the second ends of the plurality of rotor bars 17b are connected to the second end ring 17d.
ステータ18は、ハウジング11の内周面(筒部12bの内周面12g及び筒部13bの内周面13g)に固定されている。ステータ18は、複数の電磁鋼板が積層されることにより構成される円筒状のステータコア18aを有している。ステータコア18aの外周面におけるステータコア18aの軸方向第1端部が、筒部12bの内周面12gの開口端部に圧入されている。これにより、ステータコア18aの軸方向第1端部は、筒部12bの内周面12gに固定されている。ステータコア18aの外周面におけるステータコア18aの軸方向第2端部が、筒部13bの内周面13gの開口端部に圧入されている。これにより、ステータコア18aの軸方向第2端部は、筒部13bの内周面13gに固定されている。ステータコア18aの軸方向における両筒部12b,13bの間に位置する外周面がハウジング11に覆われておらず外部に露出している。
The stator 18 is fixed to the inner peripheral surface of the housing 11 (the inner peripheral surface 12g of the cylindrical portion 12b and the inner peripheral surface 13g of the cylindrical portion 13b). The stator 18 has a cylindrical stator core 18a configured by laminating a plurality of electromagnetic steel plates. The first axial end portion of the stator core 18a on the outer peripheral surface of the stator core 18a is press-fitted into the open end portion of the inner peripheral surface 12g of the cylindrical portion 12b. Thereby, the axial direction 1st edge part of the stator core 18a is being fixed to the internal peripheral surface 12g of the cylinder part 12b. The second axial end portion of the stator core 18a on the outer peripheral surface of the stator core 18a is press-fitted into the open end portion of the inner peripheral surface 13g of the cylindrical portion 13b. Thus, the second axial end portion of the stator core 18a is fixed to the inner peripheral surface 13g of the cylindrical portion 13b. The outer peripheral surface located between both cylinder parts 12b and 13b in the axial direction of the stator core 18a is not covered with the housing 11 but exposed to the outside.
ステータ18は、コイル18bを有している。コイル18bは、ステータコア18aの図示しないティースに捲回されている。そして、ステータコア18aにおける軸方向の第1端面181aからは、コイル18bの一部である環状の第1コイルエンド181bが突出する。ステータコア18aにおける軸方向の第2端面182aからは、コイル18bの一部である環状の第2コイルエンド182bが突出している。
The stator 18 has a coil 18b. The coil 18b is wound around a tooth (not shown) of the stator core 18a. An annular first coil end 181b that is a part of the coil 18b protrudes from the first end surface 181a in the axial direction of the stator core 18a. An annular second coil end 182b that is a part of the coil 18b protrudes from the second end surface 182a in the axial direction of the stator core 18a.
第1コイルエンド181bは、第1モータブラケット12の筒部12bによって覆われている。第2コイルエンド182bは、第2モータブラケット13の筒部13bによって覆われている。第2コイルエンド182bからは、U相、V相及びW相のコイル18bに対応して3つのモータ配線19が引き出されている。よって、ステータ18のコイル18bからはモータ配線19が引き出されている。
The first coil end 181b is covered with the cylindrical portion 12b of the first motor bracket 12. The second coil end 182 b is covered with the cylindrical portion 13 b of the second motor bracket 13. From the second coil end 182b, three motor wires 19 are drawn out corresponding to the U-phase, V-phase, and W-phase coils 18b. Therefore, the motor wiring 19 is drawn from the coil 18 b of the stator 18.
ハウジング11、整流部材50、及びインバータケース21は、回転軸15の軸方向においてこの順序に並んで配置されている。回転軸15の軸方向において、第2モータブラケット13は、第1モータブラケット12よりも整流部材50に近い位置に配置されている。即ち、第2モータブラケット13は、第1モータブラケット12と整流部材50との間に配置されている。
The housing 11, the rectifying member 50, and the inverter case 21 are arranged in this order in the axial direction of the rotary shaft 15. In the axial direction of the rotating shaft 15, the second motor bracket 13 is disposed at a position closer to the rectifying member 50 than the first motor bracket 12. That is, the second motor bracket 13 is disposed between the first motor bracket 12 and the rectifying member 50.
第2モータブラケット13は、筒部13bの外周面から回転軸15の径方向外側に膨出する膨出壁13dを有している。膨出壁13dの内側の空間における回転軸15の軸方向両側は、対をなす2つの閉塞壁13e,13fにより閉塞されている。図1及び図2に示すように、閉塞壁13fは、第1モータブラケット12とは反対側に位置する。閉塞壁13fには、3つの第1挿通孔11hが形成されている。各第1挿通孔11hには、回転軸15の軸方向でモータ配線19が挿通される。閉塞壁13fの外端面は、第1挿通孔11hが形成された第1端面11aである。よって、ハウジング11は、第1端面11aを有し、第1端面11aは、回転軸15の軸方向でモータ配線19が挿通される3つの第1挿通孔11hを有している。第1端面11aは、平坦面状である。
The second motor bracket 13 has a bulging wall 13d that bulges outward from the outer peripheral surface of the cylindrical portion 13b in the radial direction of the rotary shaft 15. Both axial sides of the rotating shaft 15 in the space inside the bulging wall 13d are closed by two closing walls 13e and 13f that make a pair. As shown in FIGS. 1 and 2, the blocking wall 13 f is located on the side opposite to the first motor bracket 12. Three first insertion holes 11h are formed in the blocking wall 13f. The motor wiring 19 is inserted through the first insertion holes 11h in the axial direction of the rotary shaft 15. The outer end surface of the blocking wall 13f is a first end surface 11a in which a first insertion hole 11h is formed. Therefore, the housing 11 has the first end surface 11 a, and the first end surface 11 a has three first insertion holes 11 h through which the motor wiring 19 is inserted in the axial direction of the rotating shaft 15. The first end face 11a has a flat surface shape.
図1に示すように、各モータ配線19は、第2コイルエンド182bの外周部から回転軸15の径方向外側へ膨出壁13dに向けて延びる。また、各モータ配線19は、膨出壁13dの内側で、ステータコア18aの第2端面182aとは反対側に向けて折り曲げられた後、回転軸15の軸方向に延びて各第1挿通孔11hに挿通されている。
As shown in FIG. 1, each motor wiring 19 extends from the outer peripheral portion of the second coil end 182 b toward the bulging wall 13 d outward in the radial direction of the rotating shaft 15. Each motor wiring 19 is bent toward the side opposite to the second end face 182a of the stator core 18a inside the bulging wall 13d, and then extends in the axial direction of the rotary shaft 15 to each first insertion hole 11h. Is inserted.
膨出壁13dの内面には、樹脂製である筒状の絶縁部材11gが設けられている。3つのモータ配線19は、絶縁部材11gの内側を通過している。絶縁部材11gは、第2モータブラケット13を各モータ配線19から絶縁している。
A cylindrical insulating member 11g made of resin is provided on the inner surface of the bulging wall 13d. The three motor wires 19 pass through the inside of the insulating member 11g. The insulating member 11g insulates the second motor bracket 13 from the motor wires 19.
図2に示すように、インバータケース21は、四角筒状のケース本体22を有している。図1に示すように、ケース本体22における整流部材50とは反対側の一面は開口している。ケース本体22における整流部材50と対向する一部分には、ヒートシンク30が取り付けられる取付孔22aが形成されている。
As shown in FIG. 2, the inverter case 21 has a square cylindrical case body 22. As shown in FIG. 1, one surface of the case body 22 opposite to the rectifying member 50 is open. A mounting hole 22 a to which the heat sink 30 is attached is formed in a part of the case body 22 that faces the rectifying member 50.
図3に示すように、ケース本体22は、回転軸15の軸方向で第1端面11aと整流部材50を介して対向するように配置される端面22eを有している。端面22eには、3つの円孔状の凹部22bが形成されている。各凹部22bの底面には、回転軸15の軸方向で各モータ配線19が挿通される円孔状の第2挿通孔24hが形成されている。各凹部22bの底面は、各第2挿通孔24hが形成された第2端面24である。
As shown in FIG. 3, the case main body 22 has an end surface 22 e that is disposed so as to face the first end surface 11 a via the rectifying member 50 in the axial direction of the rotary shaft 15. Three circular recesses 22b are formed on the end face 22e. A circular second insertion hole 24h through which each motor wiring 19 is inserted in the axial direction of the rotary shaft 15 is formed on the bottom surface of each recess 22b. The bottom surface of each recess 22b is a second end surface 24 in which each second insertion hole 24h is formed.
図1に示すように、ケース本体22の内側は、ケース本体22の内面に設けられる平板状の区画壁22cによって、取付孔22aに連通する第1空間221と、3つの第2挿通孔24hに連通する第2空間222とに区画されている。
As shown in FIG. 1, the inside of the case body 22 is divided into a first space 221 communicating with the mounting hole 22a and three second insertion holes 24h by a flat partition wall 22c provided on the inner surface of the case body 22. It is partitioned into a second space 222 that communicates.
インバータケース21は、ケース本体22の開口を閉塞する第1カバー部材23a及び第2カバー部材23bを有している。図2に示すように、第1カバー部材23a及び第2カバー部材23bは、ケース本体22の開口縁に設けられたガスケット23cを介して複数の螺子23d,23eによりケース本体22に取り付けられている。ケース本体22の開口縁と、第1カバー部材23a及び第2カバー部材23bとの間の境界は、ガスケット23cによってシールされている。第1カバー部材23aは、ケース本体22における第1空間221の開口を閉塞する。第2カバー部材23bは、ケース本体22における第2空間222の開口を閉塞する。
The inverter case 21 has a first cover member 23 a and a second cover member 23 b that close the opening of the case body 22. As shown in FIG. 2, the first cover member 23 a and the second cover member 23 b are attached to the case main body 22 by a plurality of screws 23 d and 23 e through a gasket 23 c provided at the opening edge of the case main body 22. . The boundary between the opening edge of the case body 22 and the first cover member 23a and the second cover member 23b is sealed by a gasket 23c. The first cover member 23 a closes the opening of the first space 221 in the case body 22. The second cover member 23 b closes the opening of the second space 222 in the case body 22.
図1に示すように、ヒートシンク30は、平板状の基部31と、基部31の一面31aに設けられるフィン32とから構成されている。図3に示すように、フィン32は、薄板をジグザグに折ることにより形成されたコルゲートフィンである。ヒートシンク30は、基部31が取付孔22aに嵌め込まれた状態でケース本体22に取り付けられている。よって、ヒートシンク30は、回転軸15の軸方向における第2モータブラケット13とインバータケース21との間でインバータケース21に設けられている。
As shown in FIG. 1, the heat sink 30 includes a flat base 31 and fins 32 provided on one surface 31 a of the base 31. As shown in FIG. 3, the fins 32 are corrugated fins formed by folding a thin plate in a zigzag manner. The heat sink 30 is attached to the case body 22 with the base 31 fitted in the attachment hole 22a. Therefore, the heat sink 30 is provided in the inverter case 21 between the second motor bracket 13 and the inverter case 21 in the axial direction of the rotating shaft 15.
図1に示すように、インバータ20は、ヒートシンク30の基部31におけるフィン32とは反対側の面31bに取り付けられている。よって、ヒートシンク30は、インバータ20と熱的に結合されている。インバータ20は、第1空間221に配置されている。
As shown in FIG. 1, the inverter 20 is attached to a surface 31 b opposite to the fin 32 in the base 31 of the heat sink 30. Therefore, the heat sink 30 is thermally coupled to the inverter 20. The inverter 20 is disposed in the first space 221.
インバータ20は、基板20aと、基板20aに実装された複数のスイッチング素子20bと、を有している。複数のスイッチング素子20bは、U相、V相及びW相のコイル18bにそれぞれ対応した各相の上アーム及び下アームを構成している。インバータ20は、スイッチング素子20bのスイッチング動作により、車載バッテリ等の直流電源からの直流を交流に変換する。
The inverter 20 has a substrate 20a and a plurality of switching elements 20b mounted on the substrate 20a. The plurality of switching elements 20b constitute an upper arm and a lower arm of each phase corresponding to the U-phase, V-phase, and W-phase coils 18b, respectively. The inverter 20 converts direct current from a direct current power source such as an in-vehicle battery into alternating current by the switching operation of the switching element 20b.
図1及び図2に示すように、基板20aからは、U相、V相及びW相のコイル18bに対応して3つのインバータ端子25が回転軸15の径方向に延設されている。各インバータ端子25は、細長板状のバスバーである。各インバータ端子25の第1端部は、介在部材20cを介して基板20aに電気的に接続されている。各インバータ端子25の第2端部は、区画壁22cを貫通して第2空間222に突出している。各インバータ端子25の第2端部には接続孔25aが形成されている。接続孔25aは、インバータ端子25の第2端部を回転軸15の軸方向に貫通している。各インバータ端子25と区画壁22cとの間の境界は、ガスケット23cの一部分であるシール部231cによってシールされている。
As shown in FIGS. 1 and 2, three inverter terminals 25 are extended from the substrate 20a in the radial direction of the rotary shaft 15 corresponding to the U-phase, V-phase, and W-phase coils 18b. Each inverter terminal 25 is an elongated plate-like bus bar. The first end of each inverter terminal 25 is electrically connected to the substrate 20a via the interposition member 20c. The second end of each inverter terminal 25 protrudes into the second space 222 through the partition wall 22c. A connection hole 25 a is formed at the second end of each inverter terminal 25. The connection hole 25 a passes through the second end of the inverter terminal 25 in the axial direction of the rotary shaft 15. The boundary between each inverter terminal 25 and the partition wall 22c is sealed by a seal portion 231c that is a part of the gasket 23c.
図3に示すように、回転軸15の径方向において、ケース本体22におけるヒートシンク30を基準として各第2挿通孔24hとは反対側の部位には、放熱フィン26が設けられている。放熱フィン26は、薄板をジグザグに折ることにより形成されたコルゲートフィンである。放熱フィン26は、回転軸15の径方向でヒートシンク30のフィン32と重なる位置に配置されている。
As shown in FIG. 3, in the radial direction of the rotating shaft 15, heat radiation fins 26 are provided at portions opposite to the respective second insertion holes 24 h with respect to the heat sink 30 in the case body 22. The heat radiating fins 26 are corrugated fins formed by folding a thin plate in a zigzag manner. The radiating fins 26 are arranged at positions that overlap the fins 32 of the heat sink 30 in the radial direction of the rotating shaft 15.
図2及び図3に示すように、ケース本体22の外面には、複数の取付用脚部27が突出するように設けられている。複数の取付用脚部27は、第2モータブラケット13に対してインバータケース21を取り付けるために用いられる。各取付用脚部27は、第2モータブラケット13の各取付用脚部13kと回転軸15の軸方向で対向している。
2 and 3, a plurality of mounting leg portions 27 are provided on the outer surface of the case body 22 so as to protrude. The plurality of attachment legs 27 are used for attaching the inverter case 21 to the second motor bracket 13. Each mounting leg 27 opposes each mounting leg 13 k of the second motor bracket 13 in the axial direction of the rotary shaft 15.
図1及び図2に示すように、冷却ファン40は、回転軸15の軸方向におけるヒートシンク30とハウジング11(第2モータブラケット13)との間で回転軸15の第2端に固定されている。そして、冷却ファン40は、回転軸15の回転に伴い回転して空気を吸気可能である。
As shown in FIGS. 1 and 2, the cooling fan 40 is fixed to the second end of the rotating shaft 15 between the heat sink 30 and the housing 11 (second motor bracket 13) in the axial direction of the rotating shaft 15. . The cooling fan 40 can rotate with the rotation of the rotating shaft 15 to suck air.
整流部材50は樹脂製である。整流部材50は、回転軸15の軸方向におけるヒートシンク30と冷却ファン40との間に配置され、かつヒートシンク30と冷却ファン40との間で空気を整流する複数の整流孔51を有している。各整流孔51は概ね四角形状である。各整流孔51は、回転軸15の軸方向で冷却ファン40及びヒートシンク30に対向している。
The rectifying member 50 is made of resin. The rectifying member 50 is disposed between the heat sink 30 and the cooling fan 40 in the axial direction of the rotating shaft 15, and has a plurality of rectifying holes 51 that rectify air between the heat sink 30 and the cooling fan 40. . Each rectifying hole 51 is generally rectangular. Each rectifying hole 51 faces the cooling fan 40 and the heat sink 30 in the axial direction of the rotary shaft 15.
図2及び図3に示すように、整流部材50は、複数の整流孔51が形成される略円板状の本体部52と、本体部52の外縁部から第2モータブラケット13に向けて延びる排気案内筒部53と、を有している。また、排気案内筒部53は、回転軸15の径方向外側に突出する複数の突出部53fを有している。図2において、各突出部53fの内側の空間は、各取付用脚部13kと回転軸15の軸方向で対向している。また、排気案内筒部53には、第2モータブラケット13の膨出壁13dとの干渉を避けるための切欠53kが形成されている。本体部52におけるインバータケース21と対向する端面52aには、3つの円筒状の挿通筒54が突出するように形成されている。
As shown in FIGS. 2 and 3, the rectifying member 50 has a substantially disc-shaped main body 52 in which a plurality of rectifying holes 51 are formed, and extends from the outer edge of the main body 52 toward the second motor bracket 13. An exhaust guide cylinder portion 53. In addition, the exhaust guide cylinder part 53 has a plurality of protrusions 53 f that protrude outward in the radial direction of the rotary shaft 15. In FIG. 2, the space inside each protrusion 53 f faces each mounting leg 13 k in the axial direction of the rotating shaft 15. Further, the exhaust guide cylinder portion 53 is formed with a notch 53k for avoiding interference with the bulging wall 13d of the second motor bracket 13. Three cylindrical insertion cylinders 54 are formed on the end face 52a of the main body 52 facing the inverter case 21 so as to protrude.
図4に示すように、各挿通筒54は、大径筒54a、段差54b、小径筒54c、及びテーパ筒54dを有している。大径筒54aは、本体部52の端面52aに連続するとともに回転軸15の軸方向に延びている。段差54bは、回転軸15の径方向に延びる円環状であるとともに大径筒54aにおける本体部52とは反対側の端部に連続している。小径筒54cは、段差54bの内周部に連続するとともに回転軸15の軸方向に延びている。小径筒54cは、大径筒54aの外径よりも小さい外径を有する。テーパ筒54dは、小径筒54cにおける段差54bとは反対側の端部に連続するとともに小径筒54cから離れるにつれて徐々に小さくなる外径を有する。
As shown in FIG. 4, each insertion tube 54 has a large diameter tube 54a, a step 54b, a small diameter tube 54c, and a tapered tube 54d. The large diameter tube 54 a is continuous with the end surface 52 a of the main body 52 and extends in the axial direction of the rotary shaft 15. The step 54b has an annular shape extending in the radial direction of the rotary shaft 15 and is continuous with the end of the large diameter tube 54a opposite to the main body 52. The small diameter cylinder 54 c is continuous with the inner peripheral portion of the step 54 b and extends in the axial direction of the rotary shaft 15. The small diameter cylinder 54c has an outer diameter smaller than the outer diameter of the large diameter cylinder 54a. The tapered cylinder 54d is continuous with the end of the small diameter cylinder 54c opposite to the step 54b and has an outer diameter that gradually decreases as the distance from the small diameter cylinder 54c increases.
各挿通筒54の内周面は、回転軸15の軸方向で各モータ配線19が挿通される円孔状の第3挿通孔54hを構成する。よって、整流部材50は、3つの第3挿通孔54hを有している。図3に示すように、各第3挿通孔54hは、本体部52における第2モータブラケット13と対向する端面に開口している。
The inner peripheral surface of each insertion tube 54 constitutes a circular third insertion hole 54h through which each motor wiring 19 is inserted in the axial direction of the rotary shaft 15. Therefore, the rectifying member 50 has three third insertion holes 54h. As shown in FIG. 3, each third insertion hole 54 h is open to an end surface of the main body 52 that faces the second motor bracket 13.
図4及び図5に示すように、第3挿通孔54hの内周面54iは、本体部52における第2モータブラケット13と対向する端面から挿通筒54の段差54bまでの間で本体部52における第2モータブラケット13と対向する端面から挿通筒54の先端に向かうにつれて先細りしている。図5に示すように、各挿通筒54の小径筒54c及びテーパ筒54dは、各第2挿通孔24hに挿入され、インバータケース21内の第2空間222に突出している。各挿通筒54のテーパ筒54dの内側の空間は、各インバータ端子25の接続孔25aに回転軸15の軸方向で対向している。
As shown in FIGS. 4 and 5, the inner peripheral surface 54 i of the third insertion hole 54 h is between the end surface of the main body portion 52 facing the second motor bracket 13 and the step 54 b of the insertion tube 54. Tapering from the end surface facing the second motor bracket 13 toward the tip of the insertion tube 54. As shown in FIG. 5, the small-diameter cylinder 54 c and the tapered cylinder 54 d of each insertion cylinder 54 are inserted into the second insertion holes 24 h and project into the second space 222 in the inverter case 21. The space inside the tapered cylinder 54 d of each insertion cylinder 54 faces the connection hole 25 a of each inverter terminal 25 in the axial direction of the rotary shaft 15.
図3及び図5に示すように、本体部52における第2モータブラケット13と対向する端面は、3つの第3挿通孔54hの周囲で第1端面11aに当接する第1当接面55を含む。よって、整流部材50は、3つの第3挿通孔54hの周囲で第1端面11aに当接する第1当接面55を有している。第1当接面55は、回転軸15の軸方向で第1端面11aに対向している。図3に示すように、第1当接面55は、切欠53kに連続している。
As shown in FIGS. 3 and 5, the end surface of the main body 52 that faces the second motor bracket 13 includes a first contact surface 55 that contacts the first end surface 11a around the three third insertion holes 54h. . Therefore, the rectifying member 50 has the first contact surface 55 that contacts the first end surface 11a around the three third insertion holes 54h. The first contact surface 55 faces the first end surface 11 a in the axial direction of the rotation shaft 15. As shown in FIG. 3, the first contact surface 55 is continuous with the notch 53k.
第1端面11aと第1当接面55との間には第1シール部材61が設けられている。第1シール部材61は、長四角枠状であるゴム製のガスケットである。第1シール部材61には、3つのモータ配線19がそれぞれ挿通される3つの枠状の挿通部61aが形成されている。各挿通部61aは、第1端面11aにおける各第1挿通孔11hの周囲、及び第1当接面55における各第3挿通孔54hの周囲に配置されている。
A first seal member 61 is provided between the first end surface 11a and the first contact surface 55. The first seal member 61 is a rubber gasket having a long rectangular frame shape. The first seal member 61 is formed with three frame-shaped insertion portions 61a through which the three motor wires 19 are inserted. Each insertion portion 61 a is disposed around each first insertion hole 11 h in the first end surface 11 a and around each third insertion hole 54 h in the first contact surface 55.
第1当接面55には、第1シール部材61を保持する第1シール部材保持溝55aが形成されている。第1シール部材保持溝55aは、第1当接面55において、各第3挿通孔54hを囲むように形成されている。
The first contact surface 55 is formed with a first seal member holding groove 55a for holding the first seal member 61. The first seal member holding groove 55a is formed on the first contact surface 55 so as to surround each third insertion hole 54h.
図5に示すように、第1シール部材61は、第1シール部材保持溝55aに装着されることにより第1シール部材保持溝55aに保持される。第1シール部材61は、第1シール部材保持溝55aに密着している。第1端面11aと第1当接面55とが当接することにより、第1シール部材61は、第1端面11aと第1シール部材保持溝55aとの間で押し潰された状態で第1端面11aに密着している。そして、第1シール部材61は、第1端面11aと第1当接面55との間の境界を介した各第1挿通孔11hへの水等の異物の侵入を抑制している。また、第1シール部材61は、第1端面11aと第1当接面55との間の境界を介した各第3挿通孔54hへの水等の異物の侵入を抑制している。
As shown in FIG. 5, the first seal member 61 is held in the first seal member holding groove 55a by being mounted in the first seal member holding groove 55a. The first seal member 61 is in close contact with the first seal member holding groove 55a. The first end surface 11a and the first contact surface 55 come into contact with each other, whereby the first seal member 61 is crushed between the first end surface 11a and the first seal member holding groove 55a. It adheres to 11a. The first seal member 61 suppresses entry of foreign matters such as water into the first insertion holes 11h via the boundary between the first end surface 11a and the first contact surface 55. In addition, the first seal member 61 suppresses entry of foreign matters such as water into the third insertion holes 54 h via the boundary between the first end surface 11 a and the first contact surface 55.
図2及び図5に示すように、各挿通筒54の段差54bの端面は、各第3挿通孔54hの周囲で第2端面24に当接する第2当接面56である。よって、整流部材50は、各第3挿通孔54hの周囲で第2端面24に当接する第2当接面56を有している。各第2当接面56は、回転軸15の軸方向で第2端面24に対向している。
2 and 5, the end surface of the step 54b of each insertion tube 54 is a second contact surface 56 that contacts the second end surface 24 around each third insertion hole 54h. Therefore, the rectifying member 50 has the second contact surface 56 that contacts the second end surface 24 around each third insertion hole 54h. Each second contact surface 56 faces the second end surface 24 in the axial direction of the rotation shaft 15.
各第2端面24と各第2当接面56との間には第2シール部材62が設けられている。図2に示すように、各第2シール部材62は、円環状であるゴム製のシール部材である。各第2当接面56には、各第2シール部材62を保持する第2シール部材保持溝56aが形成されている。各第2シール部材保持溝56aは、第2当接面56において、各第3挿通孔54hを囲むように形成されている。
A second seal member 62 is provided between each second end surface 24 and each second contact surface 56. As shown in FIG. 2, each second seal member 62 is an annular rubber seal member. Each second contact surface 56 is formed with a second seal member holding groove 56 a that holds each second seal member 62. Each second seal member holding groove 56a is formed on the second contact surface 56 so as to surround each third insertion hole 54h.
図5に示すように、各第2シール部材62は、各第2シール部材保持溝56aに装着されることにより各第2シール部材保持溝56aに保持される。各第2シール部材62は、各第2シール部材保持溝56aに密着している。各第2端面24と各第2当接面56とが当接することにより、各第2シール部材62は、各第2端面24と各第2シール部材保持溝56aとの間で押し潰された状態で各第2端面24に密着している。そして、各第2シール部材62は、各第2端面24と各第2当接面56との間を介した各第2挿通孔24hへの水等の異物の侵入を抑制している。
As shown in FIG. 5, each second seal member 62 is held in each second seal member holding groove 56a by being mounted in each second seal member holding groove 56a. Each second seal member 62 is in close contact with each second seal member holding groove 56a. Each second end surface 24 and each second contact surface 56 contact each other, whereby each second seal member 62 is crushed between each second end surface 24 and each second seal member holding groove 56a. In close contact with each second end surface 24. And each 2nd seal member 62 is suppressing the penetration | invasion of foreign materials, such as water, to each 2nd penetration hole 24h via between each 2nd end surface 24 and each 2nd contact surface 56. As shown in FIG.
図2に示すように、本実施形態のインバータ一体型回転電機10は、第2モータブラケット13に対して、整流部材50及びインバータケース21を回転軸15の軸方向に順に組み付けていくことにより構成されている。インバータケース21及び整流部材50は、インバータケース21の複数の取付用脚部27及び整流部材50を貫通して複数の取付用脚部13kにねじ込まれる螺子57によって第2モータブラケット13に組み付けられている。よって、インバータケース21及び整流部材50は、回転軸15の軸方向でハウジング11に連結されている。
As shown in FIG. 2, the inverter-integrated dynamoelectric machine 10 of the present embodiment is configured by assembling a rectifying member 50 and an inverter case 21 in order in the axial direction of the rotary shaft 15 with respect to the second motor bracket 13. Has been. The inverter case 21 and the rectifying member 50 are assembled to the second motor bracket 13 by screws 57 that pass through the plurality of mounting legs 27 and the rectifying member 50 of the inverter case 21 and are screwed into the plurality of mounting legs 13k. Yes. Therefore, the inverter case 21 and the rectifying member 50 are connected to the housing 11 in the axial direction of the rotating shaft 15.
図1に示すように、整流部材50の排気案内筒部53は、第2モータブラケット13の筒部13bの外周面を覆っている。そして、排気案内筒部53の内周面と第2モータブラケット13の筒部13bの外周面との間に排気通路58が形成されている。排気通路58は、複数の整流孔51に連通している。
As shown in FIG. 1, the exhaust guide cylinder portion 53 of the rectifying member 50 covers the outer peripheral surface of the cylinder portion 13 b of the second motor bracket 13. An exhaust passage 58 is formed between the inner peripheral surface of the exhaust guide tube portion 53 and the outer peripheral surface of the tube portion 13 b of the second motor bracket 13. The exhaust passage 58 communicates with the plurality of rectifying holes 51.
図5に示すように、各モータ配線19における第2コイルエンド182bとは反対側の端部は、絶縁部材11gの内側、各第1挿通孔11h、及び各第3挿通孔54hを通過してインバータケース21の第2空間222に突出し、各インバータ端子25の接続孔25aに挿通されている。ここで、各第3挿通孔54hを形成する各挿通筒54の小径筒54c及びテーパ筒54dは、各第2挿通孔24hに挿通されている。つまり、各第3挿通孔54hを通過する各モータ配線19は、各第2挿通孔24hを通過しているとも言える。
As shown in FIG. 5, the end of each motor wiring 19 opposite to the second coil end 182b passes through the inside of the insulating member 11g, each first insertion hole 11h, and each third insertion hole 54h. It protrudes into the second space 222 of the inverter case 21 and is inserted into the connection hole 25 a of each inverter terminal 25. Here, the small-diameter cylinder 54c and the tapered cylinder 54d of each insertion cylinder 54 forming each third insertion hole 54h are inserted into each second insertion hole 24h. That is, it can be said that each motor wiring 19 passing through each third insertion hole 54h passes through each second insertion hole 24h.
そして、各接続孔25aに挿通された各モータ配線19の端部と各インバータ端子25の第2端とが各ナット25bによって回転軸15の軸方向から締結されることにより、各モータ配線19と各インバータ端子25とが電気的に接続されている。これにより、各モータ配線19とインバータ20とが各インバータ端子25を介して電気的に接続されている。よって、各モータ配線19はインバータ20に電気的に接続されている。そして、各インバータ端子25の接続孔25aは、インバータ20における各モータ配線19との電気的接続部である。
The end portions of the motor wires 19 inserted into the connection holes 25a and the second ends of the inverter terminals 25 are fastened from the axial direction of the rotary shaft 15 by the nuts 25b. Each inverter terminal 25 is electrically connected. Thereby, each motor wiring 19 and the inverter 20 are electrically connected via each inverter terminal 25. Therefore, each motor wiring 19 is electrically connected to the inverter 20. And the connection hole 25a of each inverter terminal 25 is an electrical connection part with each motor wiring 19 in the inverter 20. FIG.
各第3挿通孔54hの内周面54iは、各モータ配線19を各インバータ端子25の接続孔25aに向けて案内する案内面59である。具体的には、各第3挿通孔54hの内周面54i、すなわち、各案内面59は、本体部52の端面52bから挿通筒54の段差54bまでの間で本体部52の端面52bから挿通筒54の先端に向かうにつれて先細りしている。したがって、各案内面59は、各インバータ端子25の接続孔25aに近づくにつれて先細りしているため、各案内面59が、回転軸15の軸方向に直線状に延びている場合に比べると、各モータ配線19が各インバータ端子25の接続孔25aに案内され易くなっている。
The inner peripheral surface 54 i of each third insertion hole 54 h is a guide surface 59 that guides each motor wiring 19 toward the connection hole 25 a of each inverter terminal 25. Specifically, the inner peripheral surface 54 i of each third insertion hole 54 h, that is, each guide surface 59 is inserted from the end surface 52 b of the main body portion 52 between the end surface 52 b of the main body portion 52 and the step 54 b of the insertion tube 54. The taper is tapered toward the tip of the tube 54. Therefore, since each guide surface 59 is tapered as it approaches the connection hole 25a of each inverter terminal 25, each guide surface 59 is compared with the case where each guide surface 59 extends linearly in the axial direction of the rotary shaft 15. The motor wiring 19 is easily guided to the connection hole 25a of each inverter terminal 25.
図2に示すように、第2モータブラケット13に対して、整流部材50及びインバータケース21を組み付ける際には、第1カバー部材23aは、ガスケット23cによって第1空間221への異物の侵入が防止された状態で、ケース本体22に予め取り付けられている。第2カバー部材23bは、第2モータブラケット13に対して、整流部材50及びインバータケース21を組み付ける際には、ケース本体22に取り付けられておらず、ケース本体22における第2空間222の開口は開放された状態にある。第2カバー部材23bは、各ナット25bにおける各モータ配線19の端部と各インバータ端子25との締結後に、ケース本体22に取り付けられる。
As shown in FIG. 2, when the rectifying member 50 and the inverter case 21 are assembled to the second motor bracket 13, the first cover member 23a prevents foreign matter from entering the first space 221 by the gasket 23c. In this state, it is attached to the case main body 22 in advance. The second cover member 23b is not attached to the case body 22 when the rectifying member 50 and the inverter case 21 are assembled to the second motor bracket 13, and the opening of the second space 222 in the case body 22 is not attached. It is in an open state. The second cover member 23 b is attached to the case main body 22 after the end of each motor wiring 19 in each nut 25 b and each inverter terminal 25 are fastened.
また、第2モータブラケット13に対して、整流部材50及びインバータケース21を組み付ける際には、第1シール部材61は第1シール部材保持溝55aに保持されているとともに、第2シール部材62は第2シール部材保持溝56aに保持されている。よって、第2モータブラケット13に対して、整流部材50及びインバータケース21を回転軸15の軸方向で順に組み付けていくと同時に、第2モータブラケット13とインバータケース21との間の境界が、第1シール部材61、整流部材50、及び第2シール部材62を介してシールされる。
When the rectifying member 50 and the inverter case 21 are assembled to the second motor bracket 13, the first seal member 61 is held in the first seal member holding groove 55a, and the second seal member 62 is It is held in the second seal member holding groove 56a. Therefore, the rectifying member 50 and the inverter case 21 are sequentially assembled with respect to the second motor bracket 13 in the axial direction of the rotary shaft 15, and at the same time, the boundary between the second motor bracket 13 and the inverter case 21 is The first seal member 61, the rectifying member 50, and the second seal member 62 are sealed.
次に、本実施形態の作用について説明する。
インバータ20から各インバータ端子25及び各モータ配線19を介してU相、V相及びW相のコイル18bに電力が供給されると、ステータ18において回転磁界が発生し、ロータ17が回転する。これにより、回転軸15がロータ17と一体的に回転する。そして、回転軸15に固定された冷却ファン40が回転軸15の回転に伴い回転する。冷却ファン40の回転により、図1において二点鎖線R1で示すように、空気が回転軸15の径方向外側から回転軸15の軸線Lに向けて導入される。このとき、空気とヒートシンク30のフィン32との間で熱交換が行われる。そして、インバータ20で発生した熱が、ヒートシンク30を介して空気中に放出され、インバータ20が冷却される。フィン32において熱交換が行われた空気は、複数の整流孔51を介して冷却ファン40に向かって流れ、排気通路58を介して外部へ排出される。 Next, the operation of this embodiment will be described.
When electric power is supplied from theinverter 20 to the U-phase, V-phase, and W-phase coils 18b via the inverter terminals 25 and the motor wirings 19, a rotating magnetic field is generated in the stator 18 and the rotor 17 rotates. Thereby, the rotating shaft 15 rotates integrally with the rotor 17. Then, the cooling fan 40 fixed to the rotating shaft 15 rotates as the rotating shaft 15 rotates. The rotation of the cooling fan 40 introduces air from the radially outer side of the rotating shaft 15 toward the axis L of the rotating shaft 15 as indicated by a two-dot chain line R1 in FIG. At this time, heat exchange is performed between the air and the fins 32 of the heat sink 30. Then, the heat generated in the inverter 20 is released into the air through the heat sink 30, and the inverter 20 is cooled. The air having undergone heat exchange in the fins 32 flows toward the cooling fan 40 through the plurality of rectifying holes 51 and is discharged to the outside through the exhaust passage 58.
インバータ20から各インバータ端子25及び各モータ配線19を介してU相、V相及びW相のコイル18bに電力が供給されると、ステータ18において回転磁界が発生し、ロータ17が回転する。これにより、回転軸15がロータ17と一体的に回転する。そして、回転軸15に固定された冷却ファン40が回転軸15の回転に伴い回転する。冷却ファン40の回転により、図1において二点鎖線R1で示すように、空気が回転軸15の径方向外側から回転軸15の軸線Lに向けて導入される。このとき、空気とヒートシンク30のフィン32との間で熱交換が行われる。そして、インバータ20で発生した熱が、ヒートシンク30を介して空気中に放出され、インバータ20が冷却される。フィン32において熱交換が行われた空気は、複数の整流孔51を介して冷却ファン40に向かって流れ、排気通路58を介して外部へ排出される。 Next, the operation of this embodiment will be described.
When electric power is supplied from the
上記実施形態では以下の効果を得ることができる。
(1)インバータ一体型回転電機10では、ハウジング11に対して、整流部材50及びインバータケース21を回転軸15の軸方向で順に組み付けていくと同時に、ハウジング11とインバータケース21との間の境界が、第1シール部材61、整流部材50、及び第2シール部材62を介してシールされることになる。よって、回転軸15の軸方向におけるヒートシンク30と冷却ファン40との間に整流部材50が配置されている構成のインバータ一体型回転電機10であっても、ハウジング11とインバータケース21それぞれの内部をシールするためのシール構造を簡素化し、インバータ一体型回転電機10の組み付けを容易なものとすることができる。 In the above embodiment, the following effects can be obtained.
(1) In the inverter-integrated rotatingelectrical machine 10, the rectifying member 50 and the inverter case 21 are sequentially assembled to the housing 11 in the axial direction of the rotating shaft 15, and at the same time, the boundary between the housing 11 and the inverter case 21. Is sealed through the first seal member 61, the rectifying member 50, and the second seal member 62. Therefore, even in the inverter-integrated rotating electrical machine 10 having the configuration in which the rectifying member 50 is disposed between the heat sink 30 and the cooling fan 40 in the axial direction of the rotating shaft 15, the interiors of the housing 11 and the inverter case 21 are respectively included. The seal structure for sealing can be simplified, and the assembly of the inverter-integrated dynamoelectric machine 10 can be facilitated.
(1)インバータ一体型回転電機10では、ハウジング11に対して、整流部材50及びインバータケース21を回転軸15の軸方向で順に組み付けていくと同時に、ハウジング11とインバータケース21との間の境界が、第1シール部材61、整流部材50、及び第2シール部材62を介してシールされることになる。よって、回転軸15の軸方向におけるヒートシンク30と冷却ファン40との間に整流部材50が配置されている構成のインバータ一体型回転電機10であっても、ハウジング11とインバータケース21それぞれの内部をシールするためのシール構造を簡素化し、インバータ一体型回転電機10の組み付けを容易なものとすることができる。 In the above embodiment, the following effects can be obtained.
(1) In the inverter-integrated rotating
(2)第1当接面55には、第1シール部材61を保持する第1シール部材保持溝55aが形成されている。これによれば、第1シール部材保持溝55aに第1シール部材61を保持した状態で、ハウジング11に対して、整流部材50及びインバータケース21を回転軸15の軸方向で順に組み付けていくことができるため、インバータ一体型回転電機10の組み付けをさらに容易なものとすることができる。
(2) The first contact surface 55 is formed with a first seal member holding groove 55a for holding the first seal member 61. According to this, the rectifying member 50 and the inverter case 21 are sequentially assembled to the housing 11 in the axial direction of the rotary shaft 15 with the first seal member 61 held in the first seal member holding groove 55a. Therefore, the assembly of the inverter-integrated dynamoelectric machine 10 can be further facilitated.
(3)第2当接面56には、第2シール部材62を保持する第2シール部材保持溝56aが形成されている。これによれば、第2シール部材保持溝56aに第2シール部材62を保持した状態で、ハウジング11に対して、整流部材50及びインバータケース21を回転軸15の軸方向で順に組み付けていくことができるため、インバータ一体型回転電機10の組み付けをさらに容易なものとすることができる。
(3) On the second contact surface 56, a second seal member holding groove 56a for holding the second seal member 62 is formed. According to this, the rectifying member 50 and the inverter case 21 are sequentially assembled to the housing 11 in the axial direction of the rotary shaft 15 with the second seal member 62 held in the second seal member holding groove 56a. Therefore, the assembly of the inverter-integrated dynamoelectric machine 10 can be further facilitated.
(4)各第3挿通孔54hの内周面54iは、各モータ配線19を各インバータ端子25の接続孔25aに向けて案内する案内面59である。これによれば、ハウジング11に対して、整流部材50及びインバータケース21を回転軸15の軸方向で順に組み付けていく際に、各モータ配線19が各案内面59によって各インバータ端子25の接続孔25aに案内され易くなるため、インバータ一体型回転電機10の組み付けをさらに容易なものとすることができる。
(4) The inner peripheral surface 54i of each third insertion hole 54h is a guide surface 59 that guides each motor wiring 19 toward the connection hole 25a of each inverter terminal 25. According to this, when the rectifying member 50 and the inverter case 21 are sequentially assembled to the housing 11 in the axial direction of the rotary shaft 15, each motor wiring 19 is connected to each inverter terminal 25 connection hole by each guide surface 59. Since it becomes easy to guide to 25a, the assembly | attachment of the inverter integrated rotary electric machine 10 can be made still easier.
(5)案内面59は、第3挿通孔54hの内周面54iである。これによれば、各第1挿通孔11hからハウジング11の外部に延びている各モータ配線19を、各第3挿通孔54hの内周面54iによって各インバータ端子25の接続孔25aに案内しながら、ハウジング11に対して、整流部材50及びインバータケース21を回転軸15の軸方向で順に組み付けていくことができる。したがって、インバータ一体型回転電機10の組み付けをさらに容易なものとすることができる。
(5) The guide surface 59 is the inner peripheral surface 54i of the third insertion hole 54h. According to this, while each motor wiring 19 extending to the outside of the housing 11 from each first insertion hole 11h is guided to the connection hole 25a of each inverter terminal 25 by the inner peripheral surface 54i of each third insertion hole 54h. The rectifying member 50 and the inverter case 21 can be sequentially assembled to the housing 11 in the axial direction of the rotary shaft 15. Therefore, the assembly of the inverter-integrated dynamoelectric machine 10 can be further facilitated.
(6)案内面59は、インバータ端子25の接続孔25aに近づくにつれて先細りしている。これによれば、例えば、案内面59が、回転軸15の軸方向に直線状に延びている場合に比べると、モータ配線19をインバータ端子25の接続孔25aに案内し易くなるため、インバータ一体型回転電機10の組み付けをさらに容易なものとすることができる。
(6) The guide surface 59 tapers as it approaches the connection hole 25a of the inverter terminal 25. This makes it easier to guide the motor wiring 19 to the connection hole 25a of the inverter terminal 25 than when the guide surface 59 extends linearly in the axial direction of the rotary shaft 15, for example. The assembly of the body type rotary electric machine 10 can be further facilitated.
(7)第2モータブラケット13に対して、整流部材50及びインバータケース21を組み付ける際には、第1カバー部材23aはガスケット23cを介してケース本体22に予め取り付けられている。よって、第2モータブラケット13に対して、整流部材50及びインバータケース21を組み付ける際に、インバータ20が収容された第1空間221に異物が侵入することがガスケット23cによって防止されているため、クリーンルーム環境内での組み付け作業を行う必要が無い。したがって、インバータ一体型回転電機10の組み付け作業のコストを抑えることができる。
(7) When the rectifying member 50 and the inverter case 21 are assembled to the second motor bracket 13, the first cover member 23a is attached in advance to the case body 22 via the gasket 23c. Therefore, when the rectifying member 50 and the inverter case 21 are assembled to the second motor bracket 13, the gasket 23 c prevents foreign matter from entering the first space 221 in which the inverter 20 is accommodated. There is no need to perform assembly work in the environment. Therefore, the cost of the assembly work of the inverter-integrated rotating electrical machine 10 can be suppressed.
(8)各ナット25bにおける各モータ配線19の端部と各インバータ端子25との締結は、各ナット25bによって回転軸15の軸方向にてなされる。このため、各モータ配線19の端部と各インバータ端子25との締結が回転軸15の径方向にてなされる構成に比べると、インバータ一体型回転電機10の回転軸15の径方向の体格を小型化することができる。
(8) The end of each motor wiring 19 in each nut 25b and each inverter terminal 25 are fastened in the axial direction of the rotary shaft 15 by each nut 25b. For this reason, compared with the structure by which the edge part of each motor wiring 19 and each inverter terminal 25 are made | formed in the radial direction of the rotating shaft 15, the radial physique of the rotating shaft 15 of the inverter integrated rotary electric machine 10 is made. It can be downsized.
なお、上記実施形態は以下のように変更してもよい。
○ 図6に示すように、整流部材50に挿通筒54が設けられておらず、第2モータブラケット13に、整流部材50に向けて突出する挿通筒13pが形成されていてもよい。整流部材50の本体部52には第3挿通孔54hが貫通形成されている。挿通筒13pは、第3挿通孔54hに向けて延びている。第2モータブラケット13は、挿通筒13pの内側に設けられる絶縁部材11gを有している。そして、絶縁部材11gの内側が第1挿通孔11hとして機能している。さらに、第1挿通孔11hの内周面11iが案内面59として機能しており、案内面59が、インバータ端子25の接続孔25aに近づくにつれて先細りしていてもよい。 In addition, you may change the said embodiment as follows.
As shown in FIG. 6, theinsertion cylinder 54 may not be provided in the rectifying member 50, and the insertion cylinder 13 p that protrudes toward the rectification member 50 may be formed in the second motor bracket 13. A third insertion hole 54 h is formed through the body 52 of the rectifying member 50. The insertion cylinder 13p extends toward the third insertion hole 54h. The second motor bracket 13 has an insulating member 11g provided inside the insertion tube 13p. The inner side of the insulating member 11g functions as the first insertion hole 11h. Furthermore, the inner peripheral surface 11 i of the first insertion hole 11 h functions as the guide surface 59, and the guide surface 59 may taper as it approaches the connection hole 25 a of the inverter terminal 25.
○ 図6に示すように、整流部材50に挿通筒54が設けられておらず、第2モータブラケット13に、整流部材50に向けて突出する挿通筒13pが形成されていてもよい。整流部材50の本体部52には第3挿通孔54hが貫通形成されている。挿通筒13pは、第3挿通孔54hに向けて延びている。第2モータブラケット13は、挿通筒13pの内側に設けられる絶縁部材11gを有している。そして、絶縁部材11gの内側が第1挿通孔11hとして機能している。さらに、第1挿通孔11hの内周面11iが案内面59として機能しており、案内面59が、インバータ端子25の接続孔25aに近づくにつれて先細りしていてもよい。 In addition, you may change the said embodiment as follows.
As shown in FIG. 6, the
また、第1挿通孔11hの内周面11i及び第3挿通孔54hの内周面54iによって、案内面59が形成されていてもよい。要は、第1挿通孔11hの内周面11i及び第3挿通孔54hの内周面54iの少なくとも一方が、モータ配線19をインバータ端子25の接続孔25aに向けて案内する案内面になっていればよい。
Further, the guide surface 59 may be formed by the inner peripheral surface 11i of the first insertion hole 11h and the inner peripheral surface 54i of the third insertion hole 54h. In short, at least one of the inner peripheral surface 11i of the first insertion hole 11h and the inner peripheral surface 54i of the third insertion hole 54h is a guide surface that guides the motor wiring 19 toward the connection hole 25a of the inverter terminal 25. Just do it.
○ 図7に示すように、整流部材50は、第1挿通孔11hに挿入される筒状の挿入部50Aを有していてもよい。これによれば、第1挿通孔11hの内側に位置するモータ配線19の部分と第2モータブラケット13との間の絶縁を挿入部50Aによって確保することができる。よって、第1挿通孔11hの内側に位置するモータ配線19の部分と第2モータブラケット13との間の絶縁を確保する絶縁部材を、第2モータブラケット13の内側に別途設ける必要が無くなり、インバータ一体型回転電機10の構成を簡素化することができる。
As shown in FIG. 7, the rectifying member 50 may have a cylindrical insertion portion 50A that is inserted into the first insertion hole 11h. According to this, the insulation between the portion of the motor wiring 19 positioned inside the first insertion hole 11h and the second motor bracket 13 can be ensured by the insertion portion 50A. Therefore, it is not necessary to separately provide an insulating member that secures insulation between the portion of the motor wiring 19 positioned inside the first insertion hole 11h and the second motor bracket 13 inside the second motor bracket 13, and the inverter The configuration of the integrated rotary electric machine 10 can be simplified.
○ 実施形態において、第1シール部材保持溝55aが、第1当接面55に形成されておらず、第1端面11aに形成されていてもよい。
○ 実施形態において、第1当接面55に、第1シール部材保持溝55aが形成されていなくてもよい。 In the embodiment, the first sealmember holding groove 55a may not be formed on the first contact surface 55 but may be formed on the first end surface 11a.
In the embodiment, the first sealingmember holding groove 55 a may not be formed on the first contact surface 55.
○ 実施形態において、第1当接面55に、第1シール部材保持溝55aが形成されていなくてもよい。 In the embodiment, the first seal
In the embodiment, the first sealing
○ 実施形態において、第2シール部材保持溝56aが、第2当接面56に形成されておらず、第2端面24に形成されていてもよい。
○ 実施形態において、第2当接面56に、第2シール部材保持溝56aが形成されていなくてもよい。 In the embodiment, the second sealmember holding groove 56 a may not be formed on the second contact surface 56 but may be formed on the second end surface 24.
In the embodiment, the second sealmember holding groove 56 a may not be formed on the second contact surface 56.
○ 実施形態において、第2当接面56に、第2シール部材保持溝56aが形成されていなくてもよい。 In the embodiment, the second seal
In the embodiment, the second seal
○ 実施形態において、整流部材50に挿通筒54が設けられておらず、例えば、本体部52に第3挿通孔54hが貫通して形成された整流部材50であってもよく、第3挿通孔54hの内周面54iが案内面59として機能していなくてもよい。
In the embodiment, the rectifying member 50 is not provided with the insertion tube 54, and may be, for example, the rectifying member 50 formed by penetrating the third insertion hole 54h in the main body portion 52. The third insertion hole The inner peripheral surface 54 i of 54 h may not function as the guide surface 59.
○ 実施形態において、案内面59が、例えば、回転軸15の軸方向に直線状に延びていてもよい。
○ 実施形態において、ケース本体22の内側が、区画壁22cによって第1空間221と第2空間222とに区画されていないインバータケース21であってもよい。 In the embodiment, theguide surface 59 may extend linearly in the axial direction of the rotating shaft 15, for example.
In the embodiment, theinverter case 21 in which the inside of the case main body 22 is not partitioned into the first space 221 and the second space 222 by the partition wall 22c may be used.
○ 実施形態において、ケース本体22の内側が、区画壁22cによって第1空間221と第2空間222とに区画されていないインバータケース21であってもよい。 In the embodiment, the
In the embodiment, the
○ 実施形態において、整流孔51の形状は特に限定されるものではなく、扇形三角形、円形であってもよい。
○ 実施形態において、閉塞壁13fに、3つの第1挿通孔11hが形成されておらず、3つのモータ配線19が挿通可能な大きさの第1挿通孔11hが一つだけ形成されていてもよい。 In the embodiment, the shape of the rectifyinghole 51 is not particularly limited, and may be a fan-shaped triangle or a circle.
○ In the embodiment, even if the threefirst insertion holes 11h are not formed in the blocking wall 13f, only one first insertion hole 11h having a size through which the three motor wires 19 can be inserted is formed. Good.
○ 実施形態において、閉塞壁13fに、3つの第1挿通孔11hが形成されておらず、3つのモータ配線19が挿通可能な大きさの第1挿通孔11hが一つだけ形成されていてもよい。 In the embodiment, the shape of the rectifying
○ In the embodiment, even if the three
○ 実施形態において、整流部材50に、3つの第3挿通孔54hが形成されておらず、3つのモータ配線19が挿通可能な大きさの第3挿通孔が一つだけ形成されていてもよい。
In the embodiment, the three straight insertion holes 54h may not be formed in the rectifying member 50, and only one third through hole having a size that allows the three motor wires 19 to be inserted may be formed. .
○ 実施形態において、各モータ配線19の端部と各インバータ端子25との締結が回転軸15の径方向にてなされる構成であってもよい。例えば、インバータケース21の外周面にモータ配線19をインバータ20に接続する端子台が設けられており、端子台に設置されたインバータ端子とモータ配線19との締結を回転軸15の径方向で行う構成であってもよい。
In the embodiment, the end portion of each motor wiring 19 and each inverter terminal 25 may be fastened in the radial direction of the rotating shaft 15. For example, a terminal block for connecting the motor wiring 19 to the inverter 20 is provided on the outer peripheral surface of the inverter case 21, and the inverter terminal installed on the terminal block and the motor wiring 19 are fastened in the radial direction of the rotary shaft 15. It may be a configuration.
○ 実施形態において、インバータケース21とヒートシンク30とが、例えば、アルミダイカストにより一体形成されていてもよい。
In the embodiment, the inverter case 21 and the heat sink 30 may be integrally formed by, for example, aluminum die casting.
Claims (7)
- 回転軸を回転可能に支持する筒状のハウジングと、
前記回転軸と一体的に回転するロータと、
前記ハウジングの内周面に固定されるステータと、
前記回転軸の軸方向で前記ハウジングに連結されるとともにインバータを収容するインバータケースと、
前記ステータのコイルから引き出されるとともに前記インバータに電気的に接続されるように構成されたモータ配線と、
前記回転軸の軸方向における前記ハウジングと前記インバータケースとの間で前記インバータケースに設けられ、前記インバータと熱的に結合されるように構成されたヒートシンクと、
前記回転軸の軸方向における前記ヒートシンクと前記ハウジングとの間で前記回転軸に固定され、前記回転軸の回転に伴い回転して空気を吸気可能な冷却ファンと、
前記回転軸の軸方向における前記ヒートシンクと前記冷却ファンとの間に配置され、前記ヒートシンクと前記冷却ファンとの間で空気を整流する整流孔を有する整流部材と、を備えたインバータ一体型回転電機であって、
前記ハウジングは、第1端面を有し、該第1端面は、前記回転軸の軸方向で前記モータ配線が挿通される第1挿通孔を有し、
前記インバータケースは、第2端面を有し、該第2端面は、前記回転軸の軸方向で前記モータ配線が挿通される第2挿通孔を有し、
前記整流部材は、前記回転軸の軸方向で前記モータ配線が挿通される第3挿通孔と、前記第3挿通孔の周囲で前記第1端面に当接する第1当接面と、前記第3挿通孔の周囲で前記第2端面に当接する第2当接面と、を有し、
前記インバータ一体型回転電機は、
前記第1端面と前記第1当接面との間に設けられる第1シール部材と、
前記第2端面と前記第2当接面との間に設けられる第2シール部材と、を備えているインバータ一体型回転電機。 A cylindrical housing that rotatably supports the rotating shaft;
A rotor that rotates integrally with the rotating shaft;
A stator fixed to the inner peripheral surface of the housing;
An inverter case connected to the housing in the axial direction of the rotating shaft and accommodating an inverter;
Motor wiring configured to be drawn from the stator coil and electrically connected to the inverter;
A heat sink provided in the inverter case between the housing and the inverter case in the axial direction of the rotating shaft, and configured to be thermally coupled to the inverter;
A cooling fan fixed to the rotating shaft between the heat sink and the housing in the axial direction of the rotating shaft, and capable of rotating and sucking air with rotation of the rotating shaft;
An inverter-integrated dynamoelectric machine comprising: a rectifying member that is disposed between the heat sink and the cooling fan in the axial direction of the rotating shaft and has a rectifying hole that rectifies air between the heat sink and the cooling fan. Because
The housing has a first end surface, and the first end surface has a first insertion hole through which the motor wiring is inserted in the axial direction of the rotating shaft,
The inverter case has a second end surface, and the second end surface has a second insertion hole through which the motor wiring is inserted in the axial direction of the rotating shaft,
The rectifying member includes a third insertion hole through which the motor wiring is inserted in the axial direction of the rotation shaft, a first contact surface that contacts the first end surface around the third insertion hole, and the third A second abutting surface that abuts on the second end surface around the insertion hole,
The inverter-integrated electric rotating machine is
A first seal member provided between the first end surface and the first contact surface;
An inverter-integrated dynamoelectric machine comprising: a second seal member provided between the second end surface and the second contact surface. - 前記第1当接面には、前記第1シール部材を保持する第1シール部材保持溝が形成されていることを特徴とする請求項1に記載のインバータ一体型回転電機。 The inverter-integrated dynamoelectric machine according to claim 1, wherein a first seal member holding groove for holding the first seal member is formed on the first contact surface.
- 前記第2当接面には、前記第2シール部材を保持する第2シール部材保持溝が形成されている請求項1又は請求項2に記載のインバータ一体型回転電機。 The inverter-integrated dynamoelectric machine according to claim 1 or 2, wherein a second seal member holding groove for holding the second seal member is formed on the second contact surface.
- 前記第1挿通孔の内周面及び前記第3挿通孔の内周面の少なくとも一方は、前記モータ配線を前記インバータにおける前記モータ配線との電気的接続部に向けて案内する案内面である請求項1~請求項3のいずれか一項に記載のインバータ一体型回転電機。 At least one of the inner peripheral surface of the first insertion hole and the inner peripheral surface of the third insertion hole is a guide surface that guides the motor wiring toward an electrical connection portion with the motor wiring in the inverter. The inverter-integrated dynamoelectric machine according to any one of claims 1 to 3.
- 前記案内面は、前記第3挿通孔の内周面である請求項4に記載のインバータ一体型回転電機。 The inverter-integrated rotating electrical machine according to claim 4, wherein the guide surface is an inner peripheral surface of the third insertion hole.
- 前記案内面は、前記電気的接続部に近づくにつれて先細りしている請求項4又は請求項5に記載のインバータ一体型回転電機。 6. The inverter-integrated dynamoelectric machine according to claim 4 or 5, wherein the guide surface tapers as it approaches the electrical connection portion.
- 前記整流部材は樹脂製であるとともに、前記ハウジングは金属製であり、
前記整流部材は、前記第1挿通孔に挿入される筒状の挿入部を有している請求項1~請求項6のいずれか一項に記載のインバータ一体型回転電機。 The rectifying member is made of resin, and the housing is made of metal,
The inverter-integrated dynamoelectric machine according to any one of claims 1 to 6, wherein the rectifying member has a cylindrical insertion portion that is inserted into the first insertion hole.
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005192364A (en) * | 2003-12-26 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Motor integrated with drive circuit |
JP2010119230A (en) * | 2008-11-13 | 2010-05-27 | Toshiba Corp | Drive system for vehicle |
JP2014236660A (en) * | 2013-06-05 | 2014-12-15 | 株式会社豊田自動織機 | Inverter built-in rotary electric machine |
JP2017500838A (en) * | 2013-11-26 | 2017-01-05 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲーSchaeffler Technologies AG & Co. KG | Power electronics module and hybrid module having electric motor current connection |
JP2017147919A (en) * | 2015-05-15 | 2017-08-24 | 株式会社豊田自動織機 | Inverter body type rotary electric machine and manufacturing method for inverter body type rotary electric machine |
-
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005192364A (en) * | 2003-12-26 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Motor integrated with drive circuit |
JP2010119230A (en) * | 2008-11-13 | 2010-05-27 | Toshiba Corp | Drive system for vehicle |
JP2014236660A (en) * | 2013-06-05 | 2014-12-15 | 株式会社豊田自動織機 | Inverter built-in rotary electric machine |
JP2017500838A (en) * | 2013-11-26 | 2017-01-05 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲーSchaeffler Technologies AG & Co. KG | Power electronics module and hybrid module having electric motor current connection |
JP2017147919A (en) * | 2015-05-15 | 2017-08-24 | 株式会社豊田自動織機 | Inverter body type rotary electric machine and manufacturing method for inverter body type rotary electric machine |
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