JP5542863B2 - Controller-integrated rotating electrical machine - Google Patents

Controller-integrated rotating electrical machine Download PDF

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Publication number
JP5542863B2
JP5542863B2 JP2012092600A JP2012092600A JP5542863B2 JP 5542863 B2 JP5542863 B2 JP 5542863B2 JP 2012092600 A JP2012092600 A JP 2012092600A JP 2012092600 A JP2012092600 A JP 2012092600A JP 5542863 B2 JP5542863 B2 JP 5542863B2
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Prior art keywords
signal line
rear bracket
circuit unit
rotating electrical
electrical machine
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JP2012092600A
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JP2013223307A (en
Inventor
仁志 磯田
暢彦 藤田
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三菱電機株式会社
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Description

  The present invention relates to a controller-integrated rotating electrical machine in which a rotating electrical machine and a control device that controls the rotating electrical machine are integrally fixed.

  In general rotating electrical machines for vehicles, an inverter as a power conversion circuit for controlling the rotating electrical machine mounted on the vehicle is mounted in a space different from the space where the rotating electrical machine is installed, so-called Separate type has been put to practical use. When the rotating electrical machine and the control device are configured separately, the space for mounting the inverter on the vehicle must be secured separately from the space where the rotating electrical machine is installed, and the harness that connects the rotating electrical machine and the inverter There is a problem that a loss due to the length of the film occurs. Therefore, in order to solve such problems, development of a control device-integrated rotary electric machine in which the rotary electric machine and the control device are integrated is underway.

  Conventionally, an inverter power circuit unit as a power conversion circuit unit on which a switching element is mounted and a control circuit unit for controlling the inverter power circuit unit are mounted on the rear side of the rear bracket of the rotating electrical machine main body. A body-type rotating electrical machine has been proposed (see, for example, Patent Document 1). In this conventional controller-integrated rotating electrical machine, the signal line connecting member disposed on the rear side in the axial direction of the rear bracket with respect to the inverter power circuit unit is configured to connect the signal line between the inverter power circuit and the control circuit unit. It is configured. The cooling air for cooling the rotating electrical machine flows into the rotating electrical machine in the axial direction of the rotating electrical machine from the outside of the rear bracket through the ventilation holes of the rear bracket, and cools the interior of the rotating electrical machine, It is discharged to the outside of the rotating electrical machine from a discharge port provided at the radial end of the rear bracket.

JP 2010-104205 A

  In the above-described conventional controller-integrated rotating electrical machine, since the signal line connecting member for connecting the inverter power circuit unit and the control circuit unit is arranged on the rear side in the axial direction of the inverter power circuit unit on which the switching element is mounted, When the number of signal lines increases, the area occupied by the signal line connecting member occupies a plane perpendicular to the direction in which the shaft of the rotating electrical machine extends, and the heat sink cooling fins that cool the inverter power circuit section are used. As a result, the cooling air flowing into the rotating electrical machine is prevented from passing, and the cooling performance of the inverter power circuit unit and the rotating electrical machine is deteriorated.

  The present invention has been made in order to solve the above-described problems in a conventional controller-integrated rotating electric machine, and is arranged in the axial direction of the rotating electric machine via a cooling fin of a heat sink that cools a power conversion circuit unit. Providing a controller-integrated rotating electrical machine capable of improving the cooling performance of the power conversion circuit unit and the rotating electrical machine, without the signal line connecting member obstructing the ventilation of the cooling air flowing into the interior of the motor Objective.

The controller-integrated rotating electrical machine according to the present invention is
A rotating electrical machine and a control device for controlling the rotating electrical machine, wherein the rotating electrical machine and the control device are integrally fixed;
The rotating electric machine is
A stator with armature windings;
A front bracket fixed to one axial end of the stator;
A rear bracket fixed to the other axial end of the stator;
A rotor including a field winding, facing the stator via a predetermined gap, and rotatably supported by the front bracket and the rear bracket;
A cooling fan fixed to the rotor and rotating together with the rotor;
With
The control device includes:
A power conversion circuit unit including a power conversion circuit that performs power conversion between the armature winding and an external DC power source;
A control circuit unit comprising a control circuit for controlling the power conversion circuit;
A signal line connecting member for connecting a signal line between the power conversion circuit unit and the control circuit unit;
With
The power conversion circuit unit is
A case made of an insulating material fixed to the outer end of the rear bracket in the axial direction;
A switching element housed in the case and constituting the power conversion circuit;
A heat sink equipped with the switching element and provided with cooling fins exposed radially inward of the rear bracket from the case;
Have
The control circuit unit is
Fixed to the axially outer end surface of the rear bracket at a position different from the position where the case is fixed;
The rear bracket is
A ventilation hole provided at an axial end of the rear bracket for introducing cooling air generated by rotation of the cooling fan into the rear bracket from outside the rear bracket via cooling fins of the heat sink;
A discharge hole provided at a radial end portion of the rear bracket, for discharging the cooling air introduced into the rear bracket to the outside of the rear bracket;
Have
The control device is covered with a protective cover having air ventilation holes at positions facing the cooling fins of the heat sink,
The signal line connecting member is
Provided in the protective cover at a radial position outside the radial position of the rear bracket where the cooling fins of the heat sink are arranged,
It is characterized by this.

  According to the controller-integrated rotating electrical machine according to the present invention, the heat sink of the power conversion circuit unit is cooled because it is arranged at a radial position outside the radial position of the rear bracket where the power conversion circuit unit is arranged. The cooling effect of the power conversion circuit unit can be improved without obstructing the ventilation of the cooling air.

1 is a cross-sectional view of a control device-integrated dynamoelectric machine according to Embodiment 1 of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a rear side view of a control device-integrated dynamoelectric machine according to Embodiment 1 of the present invention, and shows a state where a protective cover of a control device is removed. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a rear side view of a control device-integrated dynamoelectric machine according to Embodiment 1 of the present invention, and shows a state in which a protective cover of a control device is attached. It is a side view of the cover of a control device in the control device-integrated dynamoelectric machine according to Embodiment 1 of the present invention. FIG. 3 is a plan view of a signal line terminal in the controller-integrated dynamoelectric machine according to Embodiment 1 of the present invention. It is a side view of the signal wire | line terminator in the control apparatus integrated rotary electric machine by Embodiment 1 of this invention. It is a partial cross section figure of the control apparatus integrated rotary electric machine by Embodiment 2 of this invention. It is a side view of the rear side of the control apparatus-integrated dynamoelectric machine according to Embodiment 2 of the present invention, and shows a state in which the protective cover of the control apparatus is removed. FIG. 9 is a plan view of a part of a controller-integrated dynamoelectric machine according to Embodiment 2 of the present invention as viewed from the direction of arrow A in FIG. 8. It is a top view of the signal wire | line connection member in the control apparatus integrated rotary electric machine by Embodiment 2 of this invention. It is a side view of the signal wire connection member in the control apparatus-integrated dynamoelectric machine according to Embodiment 2 of the present invention.

Embodiment 1 FIG.
Hereinafter, a controller-integrated rotating electrical machine according to Embodiment 1 of the present invention will be described with reference to the drawings. 1 is a cross-sectional view of a controller-integrated dynamoelectric machine according to Embodiment 1 of the present invention. FIG. 2 is a rear side view of the controller-integrated dynamoelectric machine according to Embodiment 1 of the present invention, and shows a state in which the protective cover of the controller is removed. FIG. 3 is a side view of the rear side of the controller-integrated dynamoelectric machine according to Embodiment 1 of the present invention, and shows a state in which a protective cover of the controller is attached. 1 to 3, the rotating electric machine includes a housing including a front bracket 1 and a rear bracket 2, a stator 3 having an armature winding 3a, and a rotor 4 having a shaft 5 and a field winding 6. I have.

  The stator 3 is sandwiched between one axial end of the front bracket 1 and one axial end of the rear bracket 2 and is fixed to the front bracket 1 and the rear bracket 2. The rotor 4 is disposed coaxially with the stator 3 inside the stator 3. The shaft 5 of the rotor 4 is rotatably supported by a support bearing 7 provided on a housing including the front bracket 1 and the rear bracket 2. The rotor 4 is configured to be rotatable with respect to the stator 3 by a shaft 5.

  Cooling fans 8 are fixed to both end faces of the rotor 4 in the axial direction. A pulley 9 is attached to the end of the shaft 5 on the front side (the axially outer side of the front bracket 1). A pair of slip rings 10 are mounted on the rear side of the shaft 5, and a pair of brushes 11 that are in sliding contact with the slip ring 10 are disposed in the brush holder 12. The brush 11, the brush holder 12, and the slip ring 10 are for supplying DC power to the field winding 6. The brush holder 12, the magnetic pole position detection sensor 13, the inverter power circuit unit 20 as a power conversion circuit unit, and the control circuit unit 30 for controlling the inverter power circuit unit 20 are arranged on the rear outer side in the axial direction of the rear bracket 2. It is mounted on.

  The inverter power circuit unit 20 as a power conversion circuit unit constitutes a power conversion circuit that performs power conversion between an in-vehicle battery and an armature winding 3a (not shown), and when operating the rotating electrical machine as an electric motor, When operating as an inverter that converts DC power from the vehicle battery into AC power and supplies it to the armature winding 3a, and when the rotating electrical machine is operated as a generator, the AC power generated in the armature winding 3a is converted to DC power. It operates as a converter that converts it into a battery and supplies it to the vehicle battery.

Two sets of inverter power circuit portions 20 are provided, and are arranged at outer end portions in the axial direction of the rear bracket 2 as shown in FIG. Each inverter power circuit unit 20 includes a power circuit module 21 including a power circuit semiconductor switching element (hereinafter simply referred to as a switching element) for constituting a power conversion circuit, a resin case 22, It is composed of a heat sink 23 for cooling the circuit module.

  In the first embodiment of the present invention, the power circuit module 21 in each inverter power circuit unit 20 includes all the switching elements of the upper arm and the lower arm of each phase of the three-phase bridge circuit constituting the power conversion circuit. It is configured as a set of power circuit modules. The armature winding 3a provided on the stator 3 is composed of two sets of three-phase windings whose phases are shifted by about 30 degrees in electrical angle. As shown in FIG. Output lead wires 3bU, 3bV, 3bW are connected to a three-phase input / output terminal 24 provided in one power circuit module 21, and output lead wires 3bX, 3bY, 3bZ from the other three-phase winding are The other power circuit module 21 is connected to a three-phase input / output terminal 24. Note that the output lead wires 3bU, 3bV, 3bW and 3bX, 3bY, 3bZ described above are indicated as 3b in FIG.

  The internal space of the case 22 of the inverter power circuit unit 20 is closed by a heat sink 23 for cooling the power circuit module. The waterproof resin 25 is filled in the internal space of the case 22. The power circuit module 21 described above is mounted on a heat sink 23 for cooling the power circuit module and is housed in the internal space of the case 22 as shown in FIG. 1, and is waterproofed by the waterproof resin 25 and mechanically. Protected.

  The control circuit unit 30 includes a control board 31 on which switching elements for controlling the rotating electrical machine and the inverter power circuit unit 20 are mounted, and a resinous case 32. In the first embodiment, the control circuit unit 30 cools the field circuit module 33 including a switching element for controlling the power supplied to the field winding 6 and the field circuit module 33. The heat sink 34a for cooling the field circuit module is also provided.

  The internal space of the case 32 of the control circuit unit 30 is closed by a heat sink 34 for cooling the field circuit module. The waterproof resin 35 is filled in the internal space of the case 32. The above-described field circuit module 33 is mounted on the heat sink 34 for cooling the field circuit module and is housed in the internal space of the case 32 as shown in FIG. Protected.

  The plurality of cooling fins 23a of the heat sink 23 for cooling the power circuit module and the plurality of cooling fins 34a of the heat sink 34 for cooling the field circuit module are each configured to extend toward the axis of the shaft 5 of the rotating electrical machine. The ventilation path between the plurality of fins 23 a and the ventilation path between the plurality of fins 34 a are arranged in a direction parallel to the direction in which the shaft 5 extends.

  The rear and outer circumferences of the inverter power circuit unit 20 and the control circuit unit 30 in the axial direction are covered with a protective cover 40 made of resin. The protective cover 40 is provided with air ventilation holes 50 at the axially rear portions of the fins 23a of the heat sink 23 for cooling the power circuit module and the fins 34a of the heat sink 34 for cooling the field circuit module.

  Two sets of inverter power circuit units 20 are connected to signal line input / output terminals 26a and 26b (see FIG. 1) for connecting signal lines for transmitting signals between the inverter power circuit unit 20 and the control circuit unit 30. These are collectively indicated by reference numeral 26). In addition, the control circuit unit 30 includes a signal line input / output terminal 36 for connecting the signal lines described above.

  The signal line input / output terminals 26 a and 26 b of the inverter power circuit unit 20 are exposed from the axial ends of the cases 22 of the inverter power circuit units 20 and extend in the direction in which the shaft 5 extends. That is, the signal line input / output terminals 26 a and 26 b extend in the direction in which the shaft 5 extends from the end of the case 22 of the inverter power circuit unit 20 on the side opposite to the rear bracket 2. The signal line input / output terminal 36 of the control circuit unit 30 is exposed from the axial end of the case 32 of the control circuit unit 30 and extends in the direction in which the shaft 5 extends. That is, the signal line input / output terminal 36 extends in the direction in which the shaft 5 extends from the end of the control circuit unit 30 on the side opposite to the rear bracket 2 of the case 36.

  In the control device-integrated dynamoelectric machine according to Embodiment 1 of the present invention, the control device integrally mounted on the dynamoelectric machine is configured by an inverter power circuit unit 20 and a control circuit unit 30 as a power conversion circuit unit. .

  The protective cover 40 has a signal line terminal 41 which is a signal line for transmitting a signal to the inverter power circuit unit 20 and the control circuit unit 30 inserted. In the first embodiment, the signal line connecting member 400 is configured by a portion in which the signal line terminal 41 in the protective cover 40 is insert-molded.

  4 is a side view of the protective cover of the control device in the controller-integrated dynamoelectric machine according to Embodiment 1 of the present invention, and FIG. 5 is a signal in the controller-integrated dynamoelectric machine according to Embodiment 1 of the present invention. FIG. 6 is a side view of the signal line terminator in the control apparatus-integrated dynamoelectric machine according to Embodiment 1 of the present invention. As shown in FIGS. 1 to 6, the signal line terminal 41 includes a signal line terminal group 41 a corresponding to the signal line input / output terminal 26 a of one inverter power circuit unit 20 and a signal line of the other inverter power circuit unit 20. The signal line terminal group 41b corresponds to the input / output terminal 26b.

  The signal line terminal 41 as a signal line is a protection on the outer peripheral side of the inverter power circuit unit 20 so as not to obstruct the air ventilation hole 50 provided in the protective cover 40 and the cooling air passing through the cooling fins 23a and 34a. It arrange | positions so that the side of the cover 40 may be passed. The signal line connecting member 400 formed by the insert molding of the signal line terminal 41 of the protective cover 40 includes two sets of cooling fins 23a of the heat sink 23 for cooling the power circuit module and field circuit module cooling. The cooling fins 34a of the heat sink 34 and the air vent 50 are arranged at radial positions outside the radial positions of the brackets and brackets.

  The signal line terminal 41 is connected to the inverter power circuit unit 20 and the signal line input / output terminals 26a, 26b, 36 of the control circuit unit 30 by welding, press-fitting, soldering, etc., respectively. The part 30 is electrically connected.

  In the controller-integrated dynamoelectric machine according to Embodiment 1 of the present invention configured as described above, when the rotor 4 is driven to rotate, the cooling fan 8 is driven, and as shown by the arrow in FIG. The wind 60 flows from the air ventilation hole 50 provided in the protective cover 40 of the control device to the cooling fins 23a of the heat sink 23 for cooling the power circuit module and the cooling fins 34a of the heat sink 34 for cooling the field circuit module. Cool down. And the cooling air which cooled each module passes the ventilation hole 51 provided in the rear bracket 2, is bent to the radial direction of a rotary electric machine with the centrifugal force by the cooling fan 8, and the armature coil | winding 3a and the rear bracket 2 are bent. The air is discharged from the exhaust hole 52 provided at the end of the rear bracket 2 in the radial direction.

  According to the control apparatus-integrated dynamoelectric machine according to Embodiment 1 of the present invention, the signal line terminal 41 and the signal line connecting member 400 have cooling air that passes through the air ventilation holes 50 and the cooling fins 23a and 34a of the protective cover 40. Therefore, the cooling air flows substantially linearly until it reaches the fan 8, and the cooling performance of the inverter power circuit module, the field circuit module, and the rotating electrical machine can be improved.

  Further, since the signal line terminal 41 is insert-molded into the protective cover 40 and is integrally formed with the protective cover 40, the number of parts is reduced and the rotating electric machine is reduced in size.

  In addition, not only the signal line terminal 41 but the power system terminal which connects an inverter power circuit part and a power input / output terminal (not shown) may be insert-molded and integrally formed in the protective cover 40.

Embodiment 2. FIG.
Next, a control device-integrated dynamoelectric machine according to Embodiment 2 of the present invention will be described. In the second embodiment of the present invention, the signal line input / output terminal of the inverter power circuit unit, which is a power conversion circuit unit, is provided on the side opposite to the heat sink of the inverter power circuit unit, and the signal of the signal line input / output terminal The line input / output terminal is configured to be located at the outer end of the inverter power circuit section. Further, the signal line input / output terminal of the control circuit unit is provided on the side opposite to the heat sink of the control circuit unit, and the signal line input / output terminal is located at the outer end of the control circuit unit with respect to the radial direction of the rear bracket. It is configured as follows.

  7 is a partial cross-sectional view of a controller-integrated dynamoelectric machine according to Embodiment 2 of the present invention, and FIG. 8 is a rear side view of the controller-integrated dynamoelectric machine according to Embodiment 2 of the present invention. FIG. 2 shows a state in which the protective cover of the control device is removed. FIG. 9 is a plan view of a part of a control device-integrated dynamoelectric machine according to Embodiment 2 of the present invention as viewed from the direction of arrow A in FIG. 8, and FIG. 10 is a control device-integrated type according to Embodiment 2 of the present invention. FIG. 11 is a plan view of the signal line connecting member in the rotating electrical machine, and FIG. 11 is a side view of the signal line connecting member in the controller-integrated rotating electrical machine according to Embodiment 2 of the present invention. As shown in FIGS. 7 to 11, signal line input / output terminals 26 a and 26 b (indicated by reference numeral 26 in FIG. 7) of the inverter power circuit 20 as two sets of power conversion circuit units are connected to the inverter power. The signal line input / output terminal 36 of the control circuit 30 is provided on the side opposite to the heat sink 20 of the control circuit 30.

  As in the case of the above-described first embodiment, the rear and outer periphery of the inverter power circuit unit 20 and the control circuit unit 30 are covered with a protective cover 40 made of a substantially cylindrical resin. An air ventilation hole 50 is provided in the axially rear part of the cooling fin 23a of the heat sink 23 for cooling the power circuit module and the fin 34a of the heat sink 34 for cooling the field circuit module.

  The signal line input / output terminals 26a and 26b of the inverter power circuit unit 20 and the signal line input / output terminal 36 of the control circuit unit 30 are not on the same plane in the radial direction of the rotating electrical machine, and the signal line input / output terminals 26a and 26b The signal line input / output terminal 36 is connected by a signal line connection member 42 using a flexible member such as a flexible printed board. The signal line connecting member 42 has an inner periphery on the side surface of the protective cover 40 on the outer peripheral side of the inverter power circuit unit 20 and the control circuit unit 30 so as not to block the cooling air passing through the air ventilation holes 50 and the cooling fins 23a and 34a. It is arranged along the side.

  Other configurations are the same as those in the first embodiment.

According to the control device-integrated dynamoelectric machine according to Embodiment 2 of the present invention configured as described above, since the flexible material is used for the signal line connecting member 42, the same radial direction of the dynamoelectric machine is used. The signal line connection terminal 26 and the signal line connection terminal 36 which are not on a plane can be easily connected, and the assemblability is improved.

  In the first embodiment and the second embodiment, the long sides of the signal power input / output terminal sections of the inverter power circuit section and the control circuit section are arranged in the radial direction or the circumferential direction of the rotating electrical machine. However, you may comprise so that the long side may be arrange | positioned in the axial direction of the said rotary electric machine.

  It should be noted that within the scope of the present invention, the embodiments can be freely combined, and the embodiments can be appropriately modified or omitted.

DESCRIPTION OF SYMBOLS 1 Front bracket 2 Rear bracket 3 Stator 3a Armature winding 3b Input / output lead wire of armature winding 4 Rotor 5 Shaft 6 Field winding 7 Bearing 8 Cooling fan 9 Pulley 10 Slip ring 11 Brush 12 Brush holder 13 Magnetic pole position detection sensor 20 Inverter power circuit 21 Power circuit module 22 Case 23, 34 Heat sink 23a, 34a Cooling fin 24 Three-phase input / output terminal 25, 35 Waterproof resin 26, 36 Signal line input / output terminal section 30 Control circuit section 31 Control board 32 Case 33 Field circuit module 40 Protective cover 41 Signal line (signal line terminal) 400, 42 Signal line connection member 50 Air ventilation hole 51 Ventilation hole 52 Discharge hole 60 Cooling air

Claims (7)

  1. A rotating electrical machine and a control device that controls the rotating electrical machine, wherein the rotating electrical machine and the control device are integrally fixed.
    The rotating electric machine is
    A stator with armature windings;
    A front bracket fixed to one axial end of the stator;
    A rear bracket fixed to the other axial end of the stator;
    A rotor including a field winding, facing the stator via a predetermined gap, and rotatably supported by the front bracket and the rear bracket;
    A cooling fan fixed to the rotor and rotating together with the rotor;
    With
    The control device includes:
    A power conversion circuit unit including a power conversion circuit that performs power conversion between the armature winding and an external DC power source;
    A control circuit unit comprising a control circuit for controlling the power conversion circuit;
    A signal line connecting member for connecting a signal line between the power conversion circuit unit and the control circuit unit;
    With
    The power conversion circuit unit is
    A case made of an insulating material fixed to the outer end of the rear bracket in the axial direction;
    A switching element housed in the case and constituting the power conversion circuit;
    A heat sink equipped with the switching element and provided with cooling fins exposed radially inward of the rear bracket from the case;
    Have
    The control circuit unit is
    Fixed to the axially outer end surface of the rear bracket at a position different from the position where the case is fixed;
    The rear bracket is
    A ventilation hole that is provided at an axial end of the rear bracket and introduces cooling air generated by rotation of the cooling fan into the rear bracket from outside the rear bracket via cooling fins of the heat sink;
    A discharge hole provided at a radial end portion of the rear bracket, for discharging the cooling air introduced into the rear bracket to the outside of the rear bracket;
    Have
    The control device is covered with a protective cover having air ventilation holes at positions facing the cooling fins of the heat sink,
    The signal line connecting member is
    Provided in the protective cover at a radial position outside the radial position of the rear bracket where the cooling fins of the heat sink are arranged,
    A controller-integrated rotating electrical machine.
  2. The cooling fin is arranged to extend toward the axis of the rotating electrical machine.
    The controller-integrated rotating electrical machine according to claim 1.
  3. The signal line is integrally formed with the protective cover,
    The signal line connecting member is constituted by a portion integrally molding the signal line in the protective cover.
    The controller-integrated dynamoelectric machine according to claim 1 or 2.
  4. The signal line connecting member is composed of a flexible member provided with the signal line, and is disposed on the inner surface of the protective cover.
    The controller-integrated dynamoelectric machine according to claim 1 or 2.
  5. The power conversion circuit unit includes a signal line input / output terminal unit connected to the signal line connection member at a position different from the position where the cooling fin exists.
    The control apparatus-integrated dynamoelectric machine according to any one of claims 1 to 4, wherein the controller-integrated dynamoelectric machine is provided.
  6. The signal line input / output terminal portion has a long side arranged in a radial direction or a circumferential direction of the rotating electrical machine,
    The control apparatus-integrated dynamoelectric machine according to claim 5.
  7. The signal line input / output terminal portion has a long side arranged in the axial direction of the rotating electrical machine,
    The control apparatus-integrated dynamoelectric machine according to claim 5.
JP2012092600A 2012-04-16 2012-04-16 Controller-integrated rotating electrical machine Active JP5542863B2 (en)

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Application Number Priority Date Filing Date Title
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JP5542863B2 true JP5542863B2 (en) 2014-07-09

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CN108964351A (en) * 2018-07-20 2018-12-07 淄博京科电气有限公司 A kind of linear motor temprature control method

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JP3183035B2 (en) * 1994-05-25 2001-07-03 三菱電機株式会社 Generator for vehicle
JP2007037262A (en) * 2005-07-26 2007-02-08 Mitsubishi Electric Corp Rotating electric machine with integrated inverter
JP4166804B2 (en) * 2006-06-26 2008-10-15 三菱電機株式会社 Controller-integrated rotating electrical machine
JP4851575B2 (en) * 2009-11-02 2012-01-11 三菱電機株式会社 Controller-integrated rotating electrical machine
JP2011197806A (en) * 2010-03-17 2011-10-06 Konica Minolta Business Technologies Inc Information storage system and control method

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